Memoirs on the Coleoptera

MEMOIRS

| LIBRARY OF |
paene Museum |
pee No. 2: 293

COLEOPTERA

ON THE

BY

THOS: - L. CASEY:

1922

PUBLISHED BY
THE New ERA PRINTING COMPANY

LANCASTER, PA,

MEMOIRS

ON THE

PTE OPTERSA

BY

MOS La CASEY

PUBLISHED BY
THE NEw ERA PRINTING COMPANY

LANCASTER, Pa.

CONTENTS

PAGE
I—Studies in the vine tac iy haan Barinee
of the Brazilian Fauna... Pictrh nnetioes eh

4
me
Te

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{

ay Hon gen at vr pean Mae af ti Sea :
int ie oh at 0h eh uy

(St UDIES IN, EE Rly NCHOPHOROUS
SUBFAMILY BARINZ OF THE
BRAZILIAN FAUNA.

It is now many years since the late Mr. Herbert H. Smith returned
from Brazil with a large collection of the Insecta, made by him
and his capable wife in several parts of that country, and more
especially in the diamond regions near Chapada, in Matto Grosso.
It happily fell to my good fortune to secure what he brought back
in the large subfamily Barinz, the nearctic components of which I
had shortly before revised systematically, and in which I therefore
had special interest. Besides Chapada, there were several other
sections of Brazil that had contributed to the material brought
together by that skilfull collector, notably Santarem, on the Ama-
zon, and Rio de Janeiro, with a few from Entre Rios, in the back
country within one hundred miles of the latter city. Afterwards I
received from M. Desbrochers des Loges, a large lot in rather poor
state of preservation and deficient in records of locality, which I
added to the material of Mr. Smith, carefully remounting all
received from both sources and filing it away in my general collec-
tion, where it remained untouched for twenty-five years or more,
until the present opportunity permitted me to undertake the serious
and prolonged labor involved in a tentative systematic exposition
of it—with what success it seems difficult to foretell, for the simple
reason that it has been impossible to identify species very surely
from the epochal work of Schénherr and, what is still more impor-
tant, because of my inability to consult the type material previously
published. So the present work must be regarded merely as an
attempt to describe the material of the Smith collection, which,
though large and important as it is, by no means does justice to the
enormous Barid fauna of Brazil, the extensive regions between Rio
de Janeiro and Para, as well as the upper Amazons, being virtually
unrepresented. The deficiency of this material may very well be
inferred, indeed, by the absence of representatives of many of the
genera published by Schénherr, Lacordaire and Pascoe, even typical
Centrinus itself being unknown to me. Several of these unrecog-
nized genera are mentioned under the Madopterini. A few species
from the Central American region, Colombia, Argentina and other
parts, are included incidentally.

In defining the genera, the chief structural characters employed
in the present preliminary work are those relating to the rostrum
or beak, mandibles, antennz, prosternum and its posterior pro-

T. L. Casey, Mem. Col. X, Aug. 1922.

2 MEMOIRS ON THE COLEOPTERA

longation, separation of the anterior coxe, armature of the femora,
relative concealment of the pygidium and freedom of the tarsal
claws, with many others of subsidiary or special nature, such as
tubulation of the prothorax, freedom of the scutellum and nature
of the pubescence and sculpture. There are very few sections of
the Coleoptera where it is less practicable to devise sets of definitive
group characters, which shall be reasonably constant, than it is in
the Barinz, and considerable reliance must therefore be placed upon
habitus, in aggregating genera to form groups or tribes. The form
of the beak and mandibles, for example, depends to a great extent
upon the life habits, as can be seen in the Balaninus-like beak
which occasionally appears in many of the tribes, even when that
part is usually and typically short, thick and compressed, as in the
case of Genestus in the Diorymerini and Costovia in the Optatini,
and in the very peculiar beak and mandibles of Matrilia, of the
former tribe, and Nedestes of the Centrinini, where the mandibles
have the most extraordinary development. The mandibles may,
in fact, assume very diverse forms within the same tribe, so that no
dependence can as a rule be placed upon them through large groups
of genera. The beak in the Centrinini and Madarini is more
frequently rather long, slender and arcuate, but in Neplaxa, Zygo-
zalestes and some others, it assumes a remarkably specialized form,
and, in Tvopidobaris, it has a high basal crest or keel in both sexes.
In the Coleomerini and Ccelonertini, the beak is as securely sheltered
in repose within a tightly fitting channel, as it is in the Crypto-
rhynchine. It is singular, however, that with all this perplexing
diversity of development in nearly all the special parts and organs,
there are two features that, so far as I know personally, are abso-
lutely constant; these are the uniformly 7-jointed antennal funicle
and the simple tarsal claws. In regard to the former Mr. Champion
has described a 6-jointed funicle in the Central American genus
Odontobaris, but there is no such case among the Brazilian forms,
so far as yet discovered. It sometimes happens, however, that the
seventh joint is densely pubescent and so broad and close to the
club as to be differentiated therefrom only under high amplification
and careful observation. The constant presence of the ascending
mes-epimera, truncating the elytral humeri, may be conceded, as
this is the chief distinguishing feature of the Barina, but even here
there is notable variability in degree of development. In many
cases the epimera are conspicuously visible from above in the re-
entrant angle between the elytra and prothorax, but in other
instances there is no trace of them from a dorsal viewpoint, and,
in the genus Neplaxa, they are very feebly developed. . Moreover,
I believe this character is occasionally observable in some other
subfamilies besides the Barine, as for instance in certain Zygopides.

BRAZILIAN BARINAE 3

It has been a rather difficult matter to invent names for the very
large number of new genera which seem to be necessary. It may
possibly be thought by some systematists that the number here
proposed is excessive, and, having this point of view constantly in
mind, I have tried to propose new names only when it seemed
irrational to pursue a contrary course. The ratio of species to
genera in the present work is about 3.4. Taking the old Henshaw
list of nearctic Coleoptera, I find that the ratio of species to genera
in the Otiorhynchide is 1.6, and in the Curculionide 5.0, or, in a
combination of these two families, 3.7. In the Cerambycide this
ratio is 3.0. So it is not probable that the proportion of genera to
species here proposed is materially excessive, when we consider the
necessity of increasingly discriminative taxonomy, if we desire to
render classification amid the almost endless diversity of structural
types forming the tropical Coleoptera, in any way clear through
descriptive writing alone. If some of the earlier authors, like
Schénherr for instance, had given more attention to what they
considered unimportant structural details, it would have been much
easier to identify material from their published monographs; but,
as it is, these are practically useless, even measurement of linear
dimensions being omitted in the great work of the author mentioned.

I have found it convenient to divide the Brazilian Barine into
thirteen tribal groups. As before mentioned, the characters used
to define these groups, which are in the main structural but also in
some degree habital, are however subject to so many exceptions,
that any dichotomous table drawn up to define them would be
more or less unsatisfactory, and a paragraph is therefore given at
the end of this work, which is designed as a very general index for
the purpose of directing the attention of the student, with material
for identification, to the tribal group most likely to include his
species.

It is almost unnecessary to add that measurements of length in
this memoir, in no case include the beak, and also that only the
original spelling of generic names is adopted, even though philolog-
ically erroneous.

Tribe AMBATINI.

With the Ambatides I here unite the Peredinetides of Lacordaire,
to form the tribe Ambatini, the only important structural difference
being the moderately separated anterior coxe of the latter, as
compared with the closely contiguous coxe in Ambates and allied
genera. This incongruity may be observed in nearly all the tribal
groups of the subfamily; in the Optatini, for example, the con-
tiguous coxe of Lydamis and the distinctly separated coxe of
Eurypages, Syprestia and other related genera, can be noted. The

4 MEMOIRS ON THE COLEOPTERA

Ambatini are made up of a few genera having an elongate-oval,
rather convex form of body, often recalling Cholus, variable form
of beak, decussate and apically bifid mandibles, dentate femora and
concealed pygidium in both sexes;. they seem to be much more
numerous and generically diversified in Central than in South
America, and I have only two species in the Brazilian material
collected by Mr. Smith.

In the table of genera given below Peridinetellus Chmp., Ptera-
canthus Sch., and Drepanambates Jekel, are omitted, because of lack
of any representative material, and Pseudambates Chmp., is referred
to the Optatini because of similarity in facies. It will be noted
that most of the genera are Central American:

Anterior coxa CONLIZIIOUS: fice ego on es suite oe eiciegse Ce ee Atlan eee er! 2
Anterior coxa separated; beak cylindric, rather thick; tarsal claws—viewed
axially—connate or very approximate at base.. Rete SO

2—Beak thick, feebly arcuate, compressed and strongly soulgeuneds antenne
inserted beyond the middle; claws arcuate and free. Central America.

[Type Ams. solame iC timp foot pees oie paves etn myst eke Scr ee Batames
Beak more or less slender, more arcuate, cylindric and much less sculptured... .3
3—Elytra not carinulate laterally. . seat Pa Pipi oo ct boc 08!
pli with intervals 7 and 8 poems toward hase We kit Ae cbt een 5

aws straight, connate at base; antenne inserted beyond the middle of the
beak. Central America. [Type Am. melanops Chmp..]. ....Macrambates

Claws arcuate and free; antennz inserted at about the middle of the beak; tibiz
pluricostulate; ornamentation circumambient. Amazon region. [Type A.
PICHaS ye RS Bae IRE RAIA LT. Cini eh, (tenis Sake as eee ee Ambates

Claws and general structure nearly as in Ambates, the beak cylindric, stouter,
the antenne at about the middle; body larger than in Ambates, with more
shining integuments; ornamentation more or less circumambient. Central
American region. [Type Ambates cretifer Pasc.]........... Cholinambates

Claws and general structure as in Ambates, the body less slender, with confused
and not circumambient ornamentation, the tibiz broader and not at all
costulate. Amazon region. [Type P. leopardinus nov.]...... Pycnambates

5—Antenne inserted slightly beyond the middle of the beak; prothorax trans-
verse, parallel, narrowed in front; elytra with peculiar ornamentation, the
general facies as in Cleride. Central America. [Type Am. cleroides Chmp.]

Anambates
6—Prothorax parallel, rapidly oblique at apex; elytral vestiture marmorate or
tessellate. Central and South America. [Type P. irroratus Fabr.]

Peridinetus
Prothorax conical; integuments more shining; elytral vestiture never marmorate.
Central America. [Type P. distinctus Pasc.]................-Conophoria

No representative of this tribal group, excepting the Peridinetides,
seems to be known south of the Amazon and its tributary streams.

Batames n. gen.

Besides the type named above, a considerable number of species
placed under Ambates by Mr. Champion, such as bisignatus Chev.,
and pictipennis, duplicatus and exclamationis Chmp., should be

BRAZILIAN BARINZ 5

referred to this genus, which differs radically from Ambates in the
structure and sculpture of the beak and position of the antenne.
The following is related to solani, but is smaller in size:

Batames divisus n. sp.—Suboblong, opaque, piceous, the legs not definitely
paler; pubescence very short, rather sparse, not intermixed with paler scales,
the externally arcuate and subsutural, velvety-black areas—limited internally by
the first stria—nearly half as long as the elytra and situated at equal distance
from base and apex; beak very stout, strongly arcuate dorsally but feebly sinuate
below, the antennz concolorous, the two basal funicular joints elongate, subequal,
the first much the stouter; prothorax nearly a third wider than long, the sides
parallel and straight, oblique in less than apical half; punctures rather strong
and dense; basal lobe moderately prominent; scutellum moderate, transverse,
more shining; elytra nearly one-half wider and two and one-half times as long
as the prothorax, the humeri obtusely prominent, the subapical umbones strong;
sides more rapidly converging apically; strie rather fine, indistinctly punctate,
the intervals flat, finely, densely punctate; under surface finely, sparsely,
linearly squamulose, the scales dense, large and ochreous on the prosternum.
Length (o) 4.0 mm.; width 1.7mm. Panama (Bugaba).

Related closely to solani, but smaller and narrower, the prothorax
without median pale line, and the very faint lateral lines do not
extend upon the head as related of solant. The elytral area covered
by black scales is deep velvety-opaque and not ‘‘smoother and
shining.” The length of solani is 4.5-6 mm., and the minimum
width given as 2 mm. _ It seems to be widely diffused, but several
other distinct species are probably included at present, besides
divisus and the one noted by the author as a variety.

Macrambates n. gen.

The type of this genus is Ambates melanops Chmp., from Bugaba,
Panama. A male and female transmitted by the author do not
agree very well with the description, being more slender, with
sparser and less conspicuous vestiture and virtually unconstricted
thoracic apex; the prothorax, being barely visibly wider than long,
could scarcely be termed ‘“‘transverse.’’ The antenne are, however,
inserted far beyond the middle of the beak in both sexes and partic-
ularly in the male.

Ambates Sch.

The following species is doubtless closely related to the generic
type, named pictus by Gyllenhal, but has a shorter prothorax, this
being described as longer than wide in pictus; there is also some
difference in elytral ornamentation, the apex having an oblique
line of ochreous scales behind the oblique posterior part of the
ambient line:

Ambates circumcinctus n. sp.—Oblong-suboval, rather convex, subopaque,
black, the close discal scales above rusty-black; the prothorax above has a fine

6 MEMOIRS ON THE COLEOPTERA

median and oblique sublateral line of ochreous scales and a lateral whiter line,
not visible from above; between the two lateral lines there is a more diffused line
of ochreous scales; near each side of the elytra there is a rather broad line of
dense ochreous scales, oblique posteriorly from three-fifths at the sides to four-
fifths on the suture, the ninth interval near base and the tenth behind the middle
clothed also with similar but more diffused scales; there are also dense ochreous
scales on all the intervals at apex; under surface and legs with more diffused
linear pale scales, becoming denser and whiter irregularly along the sides and on
the femora; beak as long as the head and prothorax, rather slender, evenly
arcuate, shining, rufescent and less sculptured in apical, rather coarsely punctate
and with loose ochreous scales in basal, half, the antennz at the middle, rufous,
the three basal joints of the funicle decreasing rapidly in length; prothorax nearly
a fourth wider than long, the sides rounded, gradually more converging anteriorly
to the finely, feebly constricted apex, which is a little more than half as wide as
the base, the latter broadly and feebly bisinuate; surface not finely, very densely
punctate; scutellum well developed, transverse, rounded, more shining and with
some ochreous scales; elytra barely a fifth wider than the prothorax and not
quite two and one-half times as long, parallel, rounding in about apical half, the
humeri obtusely prominent; striz fine, impunctate; intervals flat, rather closely
and distinctly punctate; abdomen loosely but somewhat strongly punctate.
Length (@) 5.5 mm.; width 2.0mm. Brazil (a single example taken by H. H.
Smith at a locality which he failed to record).

It is unfortunately not possible to compare this species very
closely with fzctus through the Gyllenhal description, excepting as
to the form of the prothorax and the omission of any reference to
dense ochreous scales at the elytral apex in that species, but these
characters indicate, at any rate, that we here have a species distinct
from fictus.

Cholinambates n. gen.

I have given this generic name to certain of the Central American
species of generally larger size and more shining surface than the
true Ambates, and having a stouter, more cylindric and less tapering
beak. Cholinambates will include such species as cretifer Pasc.,
hetlipoides Chev., and polymorphus, albovittatus and leucopleura of
Champion. Mr. Champion has indicated several undoubtedly dis-
tinct species as varietal forms, and it is especially evident, for
example, that there could be no possible transition between cretifer
Pasc., and the form designated as figure 9, on plate 9 of the author’s
work in the “ Biologia.’’ This figure 9 represents a distinct species
to which I would attach the name Cholinambates championi n. sp.
In the same way, it is not at all likely that figure 15 on the plate,
could represent anything but a species distinct fron heilipoides.

Pycnambates n. gen.

The type of this genus, which does not at all resemble the two
preceding in external habitus, may be described as follows:

Pycnambates leopardinus n. sp.—Rather broadly oblong-suboval, convex, not

BRAZILIAN BARIN yi

at all shining, black, with pale ochreous scales loosely scattered above, finer and
sparse on the prothorax, except on the median line at base and indefinitely
denser in a broad sublateral oblique line; they are more condensed also on the
elytra in small subnubilous spots throughout; entire under surface and legs with
evenly dense scales of the same color; beak as long as the prothorax, moderate in
curvature and moderately slender, cylindric, finely, sparsely punctulate and
shining, gradually densely punctate and squamose basally; antenne at the
middle, piceous, the three basal funicular joints elongate, constituting together
three-fifths of the funicle, the first much the longest; prothorax a fifth wider
than long, the straight sides converging from the base, more convergent and
rounded beyond the middle to the subtubulate apex, which is half as wide as the
base, the latter evenly and distinctly bisinuate; punctures moderately coarse,
close, the surface opaque; scutellum well developed, transversely rounded, more
shining, convex, sloping anteriorly, subglabrous and finely punctate; elytra a
fourth wider than the prothorax and two and a third times as long, the sides
converging from the broad humeral swellings, more rounding apically, the apex
obtuse; striz fine, with moderately separated, evident punctures, the intervals
feebly shining, with rather strong close punctures. Length (2) 7.3 mm.; width
3.4mm. Brazil (Santarem).

The elytral apex is much more obtusely rounded than in Ambates,
and there is scarcely any mutual resemblance; the béak is not so
slender or tapering apically and the oval antennal club is much
less slender.

Anambates n. gen.

The type of this genus is a very peculiar Central American
species named Ambates cleroides by Mr. Champion; in general
appearance it is very different from any other Ambates in outline
and color scheme, and in the former sense recalls some of the
Peridinetus species. That cleroides should form the type of a
separate genus seems clear enough, but I regret not having an
example for more detailed study.

Peridinetus Sch.

In this well known genus the body is of oblong-suboval form,
with generally deep black and more or less opaque integuments and
marmorate vestiture of white or in part brown hair-like scales,
denser and broader beneath, the abdomen in great part denuded.
The beak is thick, feebly arcuate and almost perfectly cylindric,
with sparse and feeble sculpture, the first funicular joint much, the
second less, elongated; the femora are rather thick, with a small
aciculate tooth beneath, and the humeri are obtusely prominent.
These characters apply to the typical Peridinetus, as represented by
the Amazonian irroratus, and many of the Central American forms
placed in the genus by Mr. Champion, constitute in my opinion a
number of distinct genera, of which one is defined further on. The
South American species which happen to be in my collection at
present, are as follows:

8 MEMOIRS ON THE COLEOPTERA

Pronotum_unitormly opaculate and punctureds....i eee eee 2
Pronotum with latero-basal smooth polished spaces..................2ee0e0-
2—-Elytra with a large area devoid of white tessellation but covered densely
with uniform yellow-brown squamules; body stouter. Beak short, stout,
- perfectly cylindric, not as long as the prothorax, which is nearly a third
wider than long, convex, the sides parallel in basal, converging in apical,
--half; surface in great part clothed densely with uniform fulvous linear
squamules, with some white specks sparsely scattered and some dense white
areas antero-laterally; scutellum quadrate, polished and glabrous; elytra
two-fifths wider than the prothorax and between two and three times as
long, the striz fine and impunctate; intervals flat, the seventh strongly
carinate from the humeri to the moderate subapical umbo, 1-3 rather more
finely carinulate apically and 5 just before the apical umbo; under surface
with close and unevenly condensed white scales. Length (2) 7.5-7.7 mm.:
width 3.8 mm. Bolivia (Yungas de la Paz, 1000 m. elev.),—H. Rolle.
latiusculus n. sp.
Elytra without large area of fulvous vestiture, the scattered tessellation of white
pubescence extending throughout but with more or less irregularity...... 3
3—Beak thicker, distinctly larger than the femora, almost as long as the pro-
thorax, a little shorter in the male. Body nearly as in the preceding but
smaller and less stout, darker areas generally with a few scattered fulvous
squamules; antenne black as usual; prothorax two-fifths wider than long,
the parallel sides nearly straight, oblique anteriorly; discal part velvety-
black, with a few scattered points and the median line at base of white
squamules, these also sparse but distinct at the sides and apex, with a few
more condensed areas; scutellum parallel, slightly transverse, broadly arcuate
behind; elytra narrowing from the humeri as usual, more rapidly at apex,
abruptly much wider than the prothorax, the darker areas velvety-black;
strie fine; intervals 7 and 9 strongly carinate from the humeri not quite to
the apex, 8 more finely carinulate; posterior carinule of the third meeting
that of the ninth near apex. Length (oc 2) 6.7-7.3 mm.; width 3.0-3.2 mm.

Cayenne and Amazon Valley (Santarem).................. irroratus Fabr.
Beak less thick, scarcely stouter than the femora, relatively somewhat more
elongate, being slightly longer than the prothorax...................... 4

4—Body smaller and narrower than in zrroratus but otherwise nearly similar
throughout, the central part of the elytra with more numerous diffused
fulvous squamules in a small area at each side of the suture; prothorax less
transverse, only slightly wider than long, the sides obtusely subprominent
at the middle, thence parallel and feebly sinuate to the base, subsinuously
oblique in fully apical half; velvety-black median area with a few white
points, the median line with diffused white squamules, becoming fulvous and
broadly interrupted at the middle; scutellum punctulate and with a few
small fulvous squamules, wider than long, parallel, circularly rounded at
apex; elytra nearly one-half wider than the prothorax, of the usual outline
and fine striation, the carinules almost obsolete, excepting the two extending
from the humeri to the obsolescent umbo, and also that on the third interval
toward apex. Length (@?)5.8 mm.; width 2.6mm. Upper Amazon Basin
(Chanchomayo) oasis ec cea oe OL ee een eee incertus n. sp.
Body nearly as in the preceding but a little larger, deep black, more shining;
beak decidedly longer than the prothorax, the latter shorter and more
transverse, fully a third wider than long, the sides at the middle obtusely
but still more strongly prominent, sinuate thence to the base, rapidly straight
and oblique in exactly apical half; surface finely, not densely punctate, with
feebly elevated median line; scutellum smaller, narrower, quadrate, with
rounded angles; elytra abruptly much wider than the prothorax, of the

BRAZILIAN BARINE 9

usual outline; striz very fine, with distinct remote punctures, the flat inter-
vals very finely, rather sparsely punctulate; apical and subapical carination
somewhat strong, the lateral feeble. Length (9) 7.2 mm.; width 3.2 ™mm.
Ecuador (Balzapamba),—R. Haensch...................ecuadoricus‘n. sp
5—Form narrowly oblong-oval, unusually convex and shining, deep black; head -
and pronotum with fulvous squamules, with a small white fleck on the latter
antero-laterally and also at the apex and base of a glabrous median line
dividing the fulvous pubescence; elytra with the usual white tessellation,
but with a very large area from behind the middle to the base devoid of
spots and clothed uniformly with fulvous squamules; sterna of the hind
body densely albido-squamulose, the rest of the under surface almost bare;
femora squamulose in a suffused ring beyond the middle and also at apex;
beak short, arcuate, thick, cylindric and finely punctured; first funicular
joint as long as the next three and much thicker: prothorax a fourth wider
than long, the sides feebly converging from the base, rounded medially,
oblique and subsinuous anteriorly; surface convex, very finely punctate,
impunctate where stated above; scutellum shining, minutely punctulate,
slightly wider than long, parallel, truncate at tip; elytra as usual in form
but more convex and only a third wider than the prothorax, the striz fine,
with evident punctures; intervals feebly carinate sublaterally, more strongly
toward apex. Length (o*@) 4.2-4.7 mm.; width 1.75-2.1 mm. Southern
Brazili(Dnbremnios) Wah sce of yeh eet he ele wee ae parvus n. sp.

In this genus sexual differences are very slight, the abdomen
not materially modified at base in the male and the beak very
slightly longer in the female. The prosternum is broadly, abruptly
and deeply sulcate before the cox.

The name of the Central American species identified by Mr.
Champion as irroratus is properly marmoratus Dej., it does not
resemble the true irroratus very closely.

Conophoria n. gen.

A number of species now recorded under Peridinetus, differ from
that genus so profoundly in general habitus, due to the conical form
of the prothorax and the scheme of ornamentation, that generic
separation would seem to be advisable. Besides the type, distincta
Pasc., cretacea Pasc., (luctuosa Chev.), and trifasciata, melastome
and cana of Champion, are also to be included among the species
so far described. An example of cana, sent me by Mr. Champion,
differs so much from the typical cana as described and figured in
the “ Biologia,” that I am disposed to regard it as at least varietally
distinct and would propose for it the name C. cana ssp. dispersa
(nov.). It is from the same locality, Chiriqui, but the vestiture of
fine and whitish, uniformly distributed squamules, is distinctly
sparser and less conspicuous, though arranged very much in the
same way; the minute hair-like scales are in fact so sparse, that
there is no trace of abrupt demarcation in the median thoracic
line, although the posterior denuded elytral areas are tolerably

Io MEMOIRS ON THE COLEOPTERA

distinct. The dimensions of the specimen serving as the type of
dispersa are 8.8 by 3.7 mm.

Tribe PANTOTELINI.

The few known species of Pantoteles Sch., so closely resemble
certain Ambatides in external facies, that the genus might very
well be included in that tribe were it not for the difference in the
antennal scrobes, these being horizontal and not obliquely descend-
ing. Even in this respect, however, the isolation of the Pantotelides
may not be absolutely demonstrable, for in Cholinambates, defined
above, the scrobes are generally very feebly descending, and in
leucopleura they are depicted as truly horizontal on the plate in
the “ Biologia.”

Tribe CYRIONICHINI.

This tribe is a natural aggregation of more or less minute species,
coming near the Optatini in general organization, such as the
contiguous or extremely approximate anterior coxa, absence of
prosternal spines in the male, spiculate femora and wholly con-
cealed pygidium, but in my opinion cannot be included there,
because of the decussate mandibles and certain habital characters,
which are more easily perceived on actual study than expressible
inlanguage. Laterally prominent and broadly exposed humeri, small
prothorax and more parallel form of that part, are among the
features contributing to this isolation of the allies of Cyrionyx.
There are a number of distinct genera, those now known to me
being as follows:

Claws widely free and well developed, the claw-joint long; anterior Coxe very
narrowly separated; beak long, slender, nearly straight, cylindric; body
larger than usual, oblong-suboval, the prothorax prominent at the sides
beyond the middle; elytra with a few spiniform discal tubercles; femoral

teeth unusually strong. [Type A. spinosa nov.].................. Alluria .
Claws free, smaller, very slender; claw-joint moderate, not very slender, anterior

cox contiguous oravintuallly so¢ 22 ee ele es See ee 2
Claws very small and slender, connate at base, the claw-joint very slender;

alltenior coxce as initheiprecedine»ssroupsvajan- se eee eee 4

2—Prothorax small, deeply constricted dorsally at apex; antennz inserted at
the middle of the beak, the club small and stout, its basal segment much
more than half the mass; body more ventricose than in Cyrionyx; vestiture

not dense, uneven. [Type P. angusticollis nov.].............- Plesianones
Prothorax not deeply and abruptly constricted dorsally at apex; antenne inserted
beyond ‘the middle ofsthe bealkeyac sss eat i eae eee 3

3—Body very small, narrowly oblong-suboval, convex, the strial intervals flat,
not carinulate except on the flanks, the vestiture diversified, the elytra with
a few condensations as a rule; prothorax relatively not quite so small as in
Plesianones or Omogonia, the elytra narrower; antennal club narrower, its
basal segment less than half the mass. [Type C. biplagzata Fst.] Cyrionyx

BRAZILIAN BARINZE II

Body less minute, with relatively smaller and more gibbous prothorax and more
broadly exposed and laterally prominent humeri, the strial intervals more
or less carinulate, at least in part; antennal club small, stout, its basal
segment nearly half the mass. [Type O. ruficornis nov.]........Omogonia

4—Prothorax with converging arcuate sides and subtubulate tip, the elytral
humeri not laterally prominent, the intervals never carinulate; body convex,
much more ventricose than in Cyrionyx, the vestiture dense and more or
less nubilously variegated; beak rather long, gradually more or less tapering,
the antenne at or just behind the middle; abdomen with the usual short
third and fourth segments, the third and fourth sutures strongly reflexed at
the sides: )) |iypevd san farcollis TOV |\e1..5 jc: 2. 3. oso a ae AnOnes

Prothorax with parallel sides, rapidly jakrowine apically... «aie wee do cease.

5—Beak short; antenne medial, the club small, its basal segment rather more
than half the mass; prothorax abruptly and conspicuously tubulate at apex;
abdomen as in the preceding, but with the fourth suture more narrowly and
feebly reflexed at the sides; body in great part glabrousand shining. [Type
ETUC UTS ESB MONE POI gee eh oe Re Ch es PO Lioanones

Beak rather long, not stout or tapering, the antenne submedial: abdominal
segments differing less in length, the fourth suture not distinctly reflexed at
the sides; prothorax narrowed but scarcely at all tubulate at apex; vestiture
of the elytra loosely fasciate; body larger than in the two preceding, more
oblong-elongate, the strial intervals flat or feebly subcarinate. [Type E.
if OEIC IMO Vi MRP eo eels ee. LA ae os cigs 2, ERA PO Eumicronyx

So far as known Alluria, Plesianones and Lioanones are mono-
typic, but the others are represented by numerous species. Omo-
gonia is probably Central American exclusively, including tropical
Mexico under this title. Some of the genera such as Cyrionyx and
Anones are widely diffused through the neotropics, but Eumicronyx
seems to be wholly Amazonian.

Alluria n. gen.

The proper position for this genus has been puzzling, but the
summation of its characters seems to place it as a remote ally of
Cyrionyx rather than in a distinct tribal group. The unusually
large prothorax is of peculiar outline and ornamentation, and the
humeri are less broadly exposed than in most of the Cyrionichini.
The type may be described as follows:

Alluria spinosa n. sp.—Form oblong, rather. convex, black throughout, the
head and pronotum clothed with slender whitish scales, more dispersed and
fulvous toward the carinate median line and with an oblique vitta near each side,
which is outwardly curved at the middle and unevenly bordered externally and
internally with black denudation, the elytra with loose linear fulvous scales,
variegated with some whitish areas posteriorly; under surface with broader
fulvous scales, dense and whitish almost throughout the prosternum, at the sides
of the abdomen basally and on the metasternum; beak distinctly longer than
the head and prothorax, in great part glabrous and finely, sparsely punctate,
with a few fulvous scales basally; antennz just beyond the middle, the first two
funicular joints elongate and subequal, the club elongate-oval, pointed, the first
segment less than half the mass; prothorax barely visibly wider than long, the
sides sinuate in basal half, very rapidly oblique before the anterior prominences,

12 MEMOIRS ON THE COLEOPTERA

the apex not tubulate; surface opaculate, indistinctly punctate; scutellum
transverse, concave medially, the concavity with small scales; elytra at the
obtusely rounded and rather prominent humeri a fourth wider than the prothorax,
barely twice as long, the surface obliquely bispinose near the suture just before
the middle and also with a strong spine just within the prominent lamellate
subapical umbo; strie fine but with strong separated punctures; intervals flat,
opaculate or concealed; legs rather long. Length (co) 6.2-6.8 mm.; width
3-5-3-8 mm. Brazil (Santarem),—Smith. Two examples.

The male has a rather narrow shallow abdominal impression at
base; the two penultimate segments are short, the three sutures
very coarse, reflexed at the sides.

Plesianones n. gen.

In this genus the body is very small, the anterior coxe sub-
contiguous, the prosternum sulcate, the beak moderate, feebly
arcuate, with the antennze medial and rather short, the funicle slen-
der, with stout basal joint, the femoral spines small and aciculate
and the tarsal claws small, arcuate, very slender and free. The
type is the following:

Plesianones angusticollis n. sp.—Ventricose, convex, nearly black, the legs
dark piceous; scales small, pale, in:confused irregular double lines at the sides
of the pronotum, the inner with a feeble internal offset at the middle, the median
line finely squamulose; on the elytra the pale scales are sparsely disposed in
loose intricate design; under surface with rather strong dense punctures, each
having a very small slender squamule; beak a little longer than the head and
prothorax, shining, subglabrous; prothorax a fourth wider than long, the parallel
sides nearly straight, rounding anteriorly to the transverse sulcus; punctures
moderate, deep and dense; scutellum small, glabrous, shining and triangular in
form; elytra one-half wider than the prothorax, a fourth longer than wide, oval,
the humeri rounded, not prominent; striz strong, not definitely punctate;
intervals subequal, flat, finely, sparsely punctulate and rather shining, the seventh
and ninth carinulate; abdomen with the posterior sutures coarse, becoming fine
and strongly reflexed at the sides. Length (9) 2.0mm.: width1.25mm. Brazil
(Santarem),—Smith. One example.

Easily recognizable by the oval convex elytra and narrow, anteri-
orly constricted prothorax.

Cyrionyx Faust

The rather numerous species of this genus are very small in size
of body, narrowly suboval, convex and with even surface, the
prothorax relatively less reduced in size than usual in this tribe, the
humeri not very widely exposed at base and never more than feebly
prominent laterally. The beak is rather short, evidently arcuate
and generally more or less tapering, the anterior coxe contiguous
or very nearly and the claws small, slender and more or less close-
set, though never connate at base. The type was described from

BRAZILIAN BARINE 13

Venezuela; all my species are Brazilian, but the genus also occurs
in Central America in such species as sexguttatus and niveipictus,
of Champion. The species at hand may be defined as follows:

Elytra with a few isolated spots of dense whitish squamules.. ieee 2
Elytra with two minute subapical and two basal white spots saul also an Rinrecion
MEOW, CUTUSEC ascian pyrene areata tes kote Seed iO Men el 3
Elytra with scattered white squamules suturad, a short external antemedial
fasciarand ‘a posterior lineate: discal spots .)..,0. 5 222200 eee 4
Elytra with uniform vestiture or at least without distinctly defined clusters of
SEDLES tet See rere TR a ke iat ONESIES Dray Shy om Sed Lk at Ph Sara ad Ok 5

2—Body suboval, convex, deep black, with some scattered squamules near the
scutellum and, on each elytron, a small sharply defined dense white area
beyond the median !ine at basal third and another nearer the line and behind
apical third; pronotum with a loose fine median line and apical lateral spot
of white squamules and a dense sublateral line from the middle to the base;
beak rather stout, feebly arcuate and slightly tapering, but little longer
than the prothorax, sculptured; antenne far beyond the middle, black, the
club narrowly oval, as long as the preceding five joints; prothorax a fifth
wider than long, the sides feebly converging and broadly, evenly arcuate
from base to the apical constriction; surface opaculate, rather finely, very
densely, punctate; scutellum parabolic, scarcely as wide as long; elytra
evenly, somewhat acutely oval, two-fifths wider than the prothorax, a third
longer than wide; striae deep; intervals flat, finely, closely and asperulately
punctate, the humeral intervals carinulate as usual; under surface closely
punctate, with fine sparse squamules, dense at the sides of the prosternum
and on the met-episterna. Length (@) 2.1 mm.; width 0.9 mm. Brazil
(Saitarena) me a@me examplese wt. se. a.) 2 Oe Pee tetraspilotus n. sp.
Body more narrowly suboval, convex, piceous; elytra with a few fine scattered
squamules toward the suture at basal third, a fine denser point just within
the lateral carinule and another in the same line at the margin, the discal
spot near apical fourth composed of one or two short lines along the intervals;
pronotum with very imperfect median and sublateral lines of fine sparse
squamules, distinct only basally; under surface with dense whitish scales
along the apex of the prosternum, prolonged along the coxz, the met-episterna
only loosely clothed; beak stout, curved, barely as long as the head and
prothorax, the antenne far beyond the middle, the club shorter than in the
preceding; prothorax a fourth wider than long, the sides less arcuate, con-
verging at base, the apical constriction deep; punctures dense; elytra
scarcely a third wider than the prothorax, two-fifths longer than wide,
narrowly oval, the humeri slightly prominent; striz coarse, deep; intervals
rather narrow, shining, finely, sparsely and asperulately punctate. Length
(2) 1.65-1.75 mm.; width 0.7 mm. Brazil (Chapada—forest). Seven
SPECIMEN Se eae ke ints ee gute We Te novellus n. sp.
3—Anterior fascia almost completely obsolete; prothorax smaller. Body moder-
ately narrow, convex, deep black, the legs rufous; posterior dense spot of
white scales at the elytral margin near the apex and having a short narrow
anterior prolongation; excepting some white maculation at the base, the
remainder of the disk has sparse even hair-like squamules, the fascia at
basal third barely traceable, except in a distinct denser point on the margin;
prothorax with diffused sparse whitish squamules, the inferior flank clothed
rather densely with larger white scales, having an oblong denuded central
spot; beak thick, as long as the head and prothorax; antennal club small,
narrow; prothorax but little wider than long, parallel, rounding beyond the
middle to the feeble constriction; punctures dense; elytra oval, narrowly

14 MEMOIRS ON THE COLEOPTERA

rounded at tip, two-fifths wider than the prothorax, a third longer than
wide; strie deep but only moderately strong; intervals finely punctulate,
rather shining; legs slender. Length (co) 1.7 mm.; width o.8 mm. Brazil
(Chapada) sAusust, (Onelexamplesa eee eee pleuralis n. sp.
Anterior fascia evident though composed of fine sparse whitish squamules;
prothorax better developed but with the flanks almost nude, the sparse
inconspicuous squamules very fine and hair-like. . 4
4—Outline feebly subrhomboid-oval; body and legs iheoushous black: “elytral
squamules very fine, sparse and whitish, dense in a small point at base of
fifth interval, also rather dense in an elongate small discal spot at apical
fourth or fifth, a little more distinct also though fine and sparse about the
scutellum and at the sides of the apex, also in the fascia near basal third;
prothorax with very small fine sparse uniform hair-like scales, becoming
dense white scales in a small latero-basal spot and another beneath in the
apical constriction, also on the met-episterna externally; rostrum evenly
arcuate, equal, sculptured and as long as the head and prothorax, the latter
well developed, a fifth wider than long, with rounded sides, gradually con-
verging anteriorly and briefly at base; punctures very dense; scutellum
small, as wide as long, parabolic; elytra oval, a fourth longer than wide,
two-fifths wider than the prothorax, the humeri obtusely and only slightly
prominent; striz rather coarse and deep; intervals sparsely punctulate,
shining. Length (o) 2.25 mm.; width 1.0mm. Brazil (Santarem). One
SPCCUIME Hy 2) ofa 90 2p tia tile ieee a Pecane hee pe cre peas ENN Le subbalteatus n. sp.
Outline nearly as in the preceding but not quite so stout, convex, black, the legs
and antenne dark red, the more distinct of the elytral squamules in a broad
area feebly traceable also in subbalteatus, but here confined to a triangular
discal area having the faint fascia as a base and extending posteriorly to
apical third; posterior small spots looser and more confused with an apical
denser area; prothorax without trace of white condensation, except a small
area far down on the flanks anteriorly; met-episterna similar; beak similar but
not quite so long; prothorax also similar but not so large and more parallel,
the sides not converging at base; elytra almost as in the preceding but not
so broad; body much smaller in size; sexual characters as usual, scarcely
discoverable. Length (9) 1.8-1.9mm.; widtho.78 mm. _ Brazil (Chapada).
September and October. Three series. ae: 22 .placidus n. sp.
Outline as in subbalteatus but not so large and with the legs not ‘black but rufous
as in tlacidus; the legs in the former are longer than in either the present
recs or placidus, color black, the white squamules more conspicuous than
in either of those mentioned; on the elytra sparse but distinct in a large
area extending from base, narrowing on the suture thence to the apex, the
fascia in outer half at basal third conspicuous and dense, the discal posterior
spot also dense, narrowly lineate; prothorax with the white squamules
distinct throughout except medially, the median line loosely white; flanks
and sterna of hind body with more or less dense white scales; beak short,
feebly arcuate, squamulose basally; prothorax a third wider than long, the
sides parallel and feebly arcuate, more rounding anteriorly; punctures very
dense; scutellum different, small, short, transverse, semicircular and finely,
closely punctulate; elytra nearly as in the two preceding, the intervals more
closely punctulate; abdomen more densely squamulose. Length (co) 2.0
mm.; width 0.85 mm. Brazil (Santarem). One example..ornatellus n. sp.
5—Form not stout, suboval, convex, dark piceous, the fine squamules mostly
white, sparsely and evenly distributed over the entire elytra, a little more
condensed on the fifth interval near basal third and in a small discal area
between third and fourth; the squamules along the median line of the
intervals are colored slightly darker; on the prothorax they form a very

BRAZILIAN BARINE 15

loose and faintly defined sublateral line, and are also visible along the apex
and base and in a very fine and feeble median line; under surface with
uniform sparse slender squamules; beak only feebly arcuate, rather slender,
as long as the head and prothorax (@), a little shorter (co); prothorax a
fourth to third wider than long, the sides converging and broadly arcuate
from base to the feeble apical constriction; punctures very dense; scutellum
a little wider than long, trapezoidal, with rounded apex and with but few
punctures; elytra oval, a third wider than the prothorax, narrowly rounded
at apex as usual; humeri obtusely prominent; striz rather coarse, very
deep; intervals shining, sparsely, asperately punctulate. Length (@ @)
2.1-2.2 mm.; width 0.85 mm. Brazil (Santarem). Four examples.
suffusus n. sp.
Form nearly similar but with smaller prothorax, black, the legs bright, the
antenne duller, rufous; white squamules of the elytra very small, sparse
and uniform throughout, without condensations; on the prothorax they are
somewhat condensed toward the sides throughout; on the under surface the
scales are larger, white and rather dense throughout; beak feebly arcuate,
a little shorter (c") or longer (@) than the head and prothorax; antenneze
well beyond the middle as usual; prothorax only a fifth or sixth wider than
long, the sides subparallel, feebly arcuate, more rounding and converging
beyond the middle, the punctures very dense; scutellum small, rather wider
than long, obtusely rounded at apex; elytra attenuately oval, with obtuse
and well exposed but scarcely prominent humeri, a fourth longer than wide
and almost one-half wider than the prothorax; strie very deep but not
notably coarse; intervals flat, wider than in suffusus and, at the sides, not
carinulate as usual in the genus. Length (co 2) 1.7-1.8 mm.; width 0.78
mm. Brazil (Chapada). March and October. Seven examples.
simplex n. sp.

The species of this genus are among the smallest of the subfamily,
they are however very well defined and there are no doubtful cases
included in the material at hand. The small spicule of the femora
is rather constant and always rather inconspicuous, but in simplex
it is very minute and less evident than in the slender larger and
spiniform development seen in suffusus.

Omogonia n. gen.

The species of this genus are very much larger than those of
Cyrionyx and of a different form, having a relatively smaller pro-
thorax and widely exposed and laterally notably prominent humeri;
they are also characterized by having most of the strial intervals
carinate, often unevenly or unequally. The beak is well developed,
the antennz at the middle, with the club subglobular, pointed and
moderate in size, with its first segment fully half the mass or more,
the second funicular joint frequently longer than the first; the
femora are narrow and are feebly dentate beneath. The type may
be described as follows:

Omogonia ruficornis n. sp.—Rather stout, convex, the pronotum gradually
and simply humped and arcuate medially in profile; color piceous-black, the
tibiae and tarsi rufescent, the antenne rufous; surface shining; vestiture of

16 MEMOIRS ON THE COLEOPTERA

lineate scales rather sparse, slightly nucleated on the elytra, fulvous in color,
with a few white squamules at the sides of the elytra posteriorly, uniform on the
pronotum, minute and sparse everywhere beneath; beak a third longer than the
head and prothorax, feebly arcuate, shining and finely, rather sparsely punctulate,
closely so and squamulose basally; second funicular joint long, slender, the first
shorter and stout; prothorax but little wider than long, subparallel and nearly
straight at the sides, rounding and converging beyond the middle to the broadly
and gradually tubulate apex, which is arcuate and slightly more than half as
wide as the feebly and medially lobed base; median line with a shining biab-
breviated carina; surface finely, closely punctulate, impunctate and shining at
base, more broadly toward the sides; scutellum as long as wide, parabolic, feebly
punctulate and flat; elytra three-fourths wider than the prothorax, two-fifths
longer than wide, the sides nearly straight and converging to the moderately
obtuse apex, the humeri very prominent and the subapical umbo slightly so;
striz rather coarse, deep; intervals 2, 3, 5 and 7 carinulate, the others flat, convex
on the flanks. Length (2) 4.0 mm.; width 2.25 mm. Mexico (Orizaba).

The Central American species such as 10-costata and &-costata,
reticulata, cristata, and several others defined by Mr. Champion,
also belong to this genus, which is probably a large one, though
apparently confined to the Central American regions. The present
species differs much from any hitherto described in the even and
unvariegated nature of the thoracic vestiture and in some other
characters.

Anones n. gen.

In some respects this genus is rather close to the preceding, and
in a similar way has the antenne medial in insertion, the second
funicular joint longer than the first and the club subglobular and
pointed, with its basal segment more than half the mass; but here,
the body is more regularly oval, without prominent elytral humeri,
with broader, more basally inflated prothorax and more minute and
basally connate tarsal claws. The strial intervals also are all flat,
or with almost imperceptible carination and only on the upper part
of the flanks; the pronotum is even in convexity and not gibbous.
The type may be regarded as the first of those defined below:

Scutelluim rather welldevelopeds) sBrazilianeyee ays sae ete eeeee 2
Scutellum notably smaller. Central American regions....................+-3
2—Body very stout; prothorax much inflated and strongly rounded at the sides.
Black, evenly suboval and convex; squamules whitish, narrow, sparsely and
unevenly disposed, more distinct in an oblique line near each side of the
pronotum and almost throughout intervals 4 and 6 on the elytra, moderately
close and uneven beneath, a denser point near apex and base of the pro-
thoracic flanks and at the sides of the mesosternum proper; beak rather
slender, longer than the head and prothorax, feebly arcuate, slightly tapering
and closely sculptured, smoother and more shining distally; prothorax
transverse, nearly three-fifths wider than long, the inflated sides strongly,
evenly arcuate, strongly converging anteriorly to the tubulate apex, which
is less than half as wide as the base; surface opaque, densely punctulate.
the median line not modified; scutellum a little wider than long, trapezcidal.

BRAZILIAN BARINZE 17

with arcuate apex, partially finely punctate; elytra ogival, with narrowly
rounded tip, but little longer than wide, a fourth wider than the prothorax,
the humeri but feebly swollen; striz rather fine, deep; intervals flat, sub-
opaque, finely punctulate; abdomen subglabrous in a parallel-sided area
from base to apex. Length () 2.8 mm.: width 1.7mm. Brazil (Entre
Rios). Ouelexample mes eee soy. 22) oy... andlaticollis a. sp.
Body less stout, the prothorax not notably inflated at the sides. Form ovulate
convex, piceous in color, the white scales forming two oblique lines on the
pronotum, unevenly distributed and comminuted on the elytra, a short line
at the middle on intervals 3 and 4 more distinct, also a broad subdenuded
transverse fascia behind the middle; under surface with rather close but
uneven scaly vestiture, the scales very dense throughout the inferior flanks
of the prothorax; beak not quite as long as the head and prothorax, feebly
arcuate, stouter, sculptured and squamose basally, strongly tapering and
smoother distally; antennal club narrow and elongate-oval; prothorax
nearly one-half wider than long, the converging sides distinctly arcuate to
the feebly constricted apex, which is less than half as wide as the base;
punctures very dense; scutellum parabolic, with fine punctures centrally
only; elytra parabolic, a third wider than the prothorax, the humeri oblique,
not prominent; strie rather fine but deep; intervals flat, the humeral
feebly subcarinulate; punctures rather small and close, asperulate. Length
(2) 1.8-2.2 mm.; width 0.85-I.15 mm. Brazil (Santarem). Three
SPECIMENS eee oe eh ee tose Peet | procax n. sp.
3—Body subrhomboid-oval, convex, piceous and slightly shining, the antennze
obscure rufous; white scales nearly as in the preceding, dense at the sides
and medio-basally on the pronotum, uneven on the elytra and there mingled
with some that are narrower and darker, without short discal lines, but with
a dense fascia at apical fourth and a rather dense apical area, rather sparse
beneath, close in a small antero-lateral spot on the prosternum and on part
of the met-episterna; beak distinctly arcuate, feebly tapering, three-sevenths
as long as the body and somewhat slender, sculptured and sparsely squamu-
lose basally; prothorax nearly one-half wider than long, the sides converging
and very feebly arcuate through more than basal half, then broadly rounding
and converging to the apex, which is half as wide as the base; punctures
rather strong and very close; scutellum trapezoidal, its entire surface finely
punctulate; elytra but little longer than wide, three-sevenths wider than the
prothorax, parabolic in form, the oblique humeri not laterally prominent;
striz moderate but deep; intervals flat, the humeral faintly subcarinate;:
punctures fine, somewhat close, asperulate; abdominal sutures 2-4 very
coarse and deep except at the sides. Length (o) 1.9 mm.; width 1.0 mm.
Mexico (Vera Cruz). One Sea Stee ybirniem sata ty ghanhress, dee, vapidus n. sp.

Among the species described by Mr. Champion, it is highly
probable that balaninoides, turbidus, exiguus, apiatus and perhaps
some others, should be transferred to this genus, which is altogether
distinct from either Omogonia or Cyrionyx, though inhabiting the
same regions; a specimen of nebulosus, directly communicated by
Mr. Champion, proves this to be an Anones also; vapidus cannot
be identified with any described species, though apparently allied
to apiatus. Bilineatus probably constitutes a distinct genus, be-
cause of the narrow elongate outline and long anterior legs.

T. L. Casey, Mem. Col. X, Aug. 1922.

18 MEMOIRS ON THE COLEOPTERA

Lioanones n. gen.

This genus differs from the preceding in its partially glabrous and
very shining integuments, very strongly, -apically tubulate pro-
thorax, shorter beak and antenne and especially in the structure
of the antennal club, which is here more briefly oval, with its
basal segment constituting more than half the mass—not much
less than half as in Anones. The tarsal claws are connate at base
and are still smaller than in the preceding, being somewhat as in
Eumicronyx, though there the claw-joint is more slender. The
type may be described as follows:

Lioanones tubulatus n. sp.—Subrhomboidal, convex, polished, piceous-black,
glabrous above, except that there are sparse whitish hair-like squamules in a
basal and posterior sutural area; prosternum, except posteriad, and sides of the
pronotum also with some white squamules, these more conspicuous on the sterna
of the hind body throughout and dense on the meso- and met-episterna, fine
and sparse on the abdominal segments distally, also on the fifth segment; beak
not as long as the head and prothorax in either sex and notably short in the
male, feebly arcuate, sculptured and sulculate basally, not noticeably tapering;
prothorax almost one-half wider than long, the sides parallel and broadly arcuate,
very rapidly converging well beyond the middle to the long apical tubulation,
which is somewhat more than half as wide as the base; punctures rather strong
but sparse, wanting on the tubule; scutellum trapezoidal, feebly punctulate;
elytra more elongate than in the preceding, acutely parabolic, three-sevenths
longer than wide, two-fifths wider than the prothorax, the humeri obliquely
rapidly converging but not at all externally prominent; strize rather coarse, deep,
feebly crenulate; intervals not quite flat, convex laterally, feebly carinulate
behind the humeri, finely, very sparsely punctate; under surface more closely
punctate, sparsely on most of the abdomen; femora narrow, the spicule small.
Length (oc @) 2.3-2.4 mm.; width 1.35 mm. Brazil (Chapada). November.
Two specimens.

The base of the prothorax is only very feebly lobed and there is,
throughout the width, a thickened bead-like margin which is not
apparent in Anones.

Eumicronyx n. gen.

The general appearance of the species in this genus is highly
distinctive, both in bodily form and ornamentation. In abdominal
structure they form an exception in the entire tribe, the third and
fourth segments, though evidently shorter than the others, being
less abruptly abbreviated, with the two penultimate sutures barely
at all reflexed at the sides. The beak is moderate, the antennal
club rather stout, oval, with its basal segment more than half the
mass, and the pronotum is unbeaded at base. The femora are very
feebly clavate, with small but distinct denticle, and the claws are
minute and connate at base, the claw-joint conspicuously slender
when compared with the width of the preceding three joints, the
third moderately bilobed as usual. The anterior coxe are contig-
uous. There are three species at hand as follows:

BRAZILIAN BARINE 19

Strial intervals flat, the two post-humeral on each elytron alone carinulate..... 2
Strial intervals feebly carinulate EMEOUSHOUE Sern ss kOe te Som OP 3B
2—Body obtusely subrhomboid, convex, deep black, the legs not paler; surface
lustre rather shining where abraded: scales narrow, white in three thoracic
vittee, elsewhere brown; on the elytra the white scales, parted by the coarse
striz, form a transverse fascia at hasai third from suture to the sixth stria,
which is broadly extended to base laterally and angularly to the scutellum
suturally, also a very broad anteriorly angulate fascia in apical two-fifths,

the scales of which became sparse toward apex; under surface with white
scales, dense on the prosternum, on the mesosternum proper, met-episterna,
hind margin of the metasternum and on most of the abdomen, the legs
distinctly but not densely squamose: beak as long as the head and prothorax
(2), shorter (co), squamose and sculptured basally, moderately arcuate and
just visibly tapering; prothorax a third wider than long, the sides subparallel
and very slightly arcuate, rapidly, arcuately narrowing anteriorly to apex,
which is more than half as wide as the base; punctures moderate, dense;
scutellum quadrate, with rounded angles, densely albido-squamose; elytra
one-half longer than wide, two-fifths wider than the prothorax and three
times as long; humeri shining and rounded but not laterally prominent;
striz rather coarse, deep; intervals closely punctate, the punctures concealed.
Length (oc 9) 3.3-3.9 mm.; width 1.5-1.8 mm. Brazil (Chapada). March
aiid Novem benmmreemea en! hy 6) ahd te tosses yh ek funerea n. sp.
Body as in funerea but smaller, the beak similar, but the antennal club is smaller
and more narrowly oval; prothorax shorter, more than one-half wider than
long, the sides more arcuate and gradually converging beyond about the
middle to the more distinct but shorter apical tubulation, which similarly

is much more than half as wide as the base; median loose white vitta nar-
rower; punctures dense; elytra nearly similar but less narrowed from the
humeri, the apex more obtuse; fascia at basal third involving only intervals
2-6, only the line on the sixth extending to base; apical two-fifths covered
uniformly with slender squamules, this area truncate anteriorly; striz very
coarse, deep, relatively much coarser than in funerea. Length (o) 3.0 mm.;
width 1.4-1.45 mm. Brazil (Chapada). October and November. Two
SIDES NTSC «iol A eT Ree AP eee i Ore curticollis n. sp.
3—Form more oval, subrhomboidal, convex, deep black; vestiture apparently
as in funerea, but in great part denuded in the type and almost wholly so

on the elytra; beak cylindric, barely as long as the head and prothorax,
moderately slender and evenly arcuate, punctulate basally but not densely;
antennz as in funerea; prothorax less transverse, only between a third and
fourth wider than long, the parallel sides evenly and much more strongly
arcuate, the apical constriction short but deep across the dorsal surface;
punctures rather small, extremely dense, the surface Opaque, much more
convex than in either of the preceding, strongly arcuate in profile; scutellum

a little shorter, more rounded; elytra shorter, not quite one-half longer
than wide, fully two-fifths wider than the prothorax but less than two and
one-half times as long, the humeri straight and at 45° basally, not prominent
though rather narrowly rounded laterally; strie rather fine but deep.
Length (9) 3.5 mm.; width 1.7 mm. Brazil (Santarem). One specimen.
densicollis n. sp.

The relatively unusual length of abdominal segments 3 and 4 is
much more apparent at the sides of the abdomen than along the
median line; sutures 2~4 are very coarse, deep and glabrous, finer
at the sides as usual in such cases.

20 MEMOIRS ON THE COLEOPTERA

Tribe OPTATINI.

This tribe is moderate in regard to numbers but rather diversified
in appearance, recalling the Centrinini very strongly in general
habitus of the body, and to some extent in the form of the mandibles,
but distinguishable by a number of features, no one of which is
however constant. The two most important characters are the
contiguous anterior coxe and absence of male prosternal spines in
the Optatini, but there are several genera, and especially Eury-
pages, where the coxe become rather conspicuously separated and
there are many Centrinides having no vestige of prosternal spines
in the male. There is, however, an almost undefinable difference
of facies, depending upon sculpture or peculiarities of the vestiture,
which, though no more constant that the others, form some of the
elements that in combination will generally indicate the correct
assignment of any particular genus. The species are much larger
than in the Cyrionichini—included with the ‘Optatides” by Mr.
Champion—in fact including the largest known in the Barine.
There is, besides this, scarcely a vestige of similarity in habitus
between the two tribes, although in both of them the femora are
spiculate beneath throughout and the pygidium completely con-
cealed as in Centrinini.

The mandibles are not strongly decussate, with rounded outline
when closed as they are in Cyrionichini, but are straight within, and ~
as a rule—excepted however in Costovia and Pseudoptatus, where the
mandibles in each case are peculiar—form an angulation when
closed, somewhat as in many of the Centrinini. The inner edge
may however be strongly dentate, as in Syprestia and Optatus, the
tooth becoming long and slender in Pseudoptatus, where the man-
dibles when closed present a broadly rounded outline, or, with the
edge but slightly irregular, as in Lydamis; in parvula, in fact, the
edges are virtually even and form an almost perfect straight line
of contact when closed. In Costovia the mandibles are acuminate
at tip and dentate within and have assumed a more vertical plane
of action, somewhat as in Balaninus, which might have been
predicated by the similarly extremely slender cylindrical beak, but
the general aspect of this .genus and the absolutely contiguous
anterior coxe, with the strongly ascending mes-epimera of the
Barinze, show that it must be placed nevertheless in the Optatini;
all of which goes to indicate that in some parts of the Barid series
the form of the mandibles does not have the systematic value that
it has elsewhere. In other words, as in so many parts of the
Coleoptera, groups can be formulated more naturally on generalities
than on special structures.

The genera included in the material at hand are the following:

BRAZILIAN BARINE 21

Tarsal claws long slender and widely free; anterior coxz in close contact; tibize
not dentate externally; strial intervals flat, only faintly carinulate on the

flanks. “[Type Centrinussaneulus Boles ooo vk. es. on eo cee wee Lydamis
Tarsal claws well developed and straight, sometimes thickened to some degree
pasallywalwaysiconnareratsbascay perl ancre sis cho ac .ns Roark arto a eel te a 2
2—Anterior cox in close contact; tibize not dentate................-.-+-+- 3
Anterior coxee very narrowly separated, the tibize strongly and sharply dentate
extemallyimean uel bases ern rte ee ee ac hs as Ace onion Bee ee fae 5

Anterior coxe separated by a third to half of their own width; tibiz simple;
scutellum transverse and well developed; strial intervals conspicuously
SEVIER RMSE 3, 2), LUGS Se! oy gen ng en OE A OS 6

3—Strial intervals flat, only faintly carinulate on the flanks; scutellum very
short and transverse; beak evenly arcuate, the antenne submedial, the club
elongate-oval, abrupt. [Type Centrinus palmaris Pasc.] Mexico..Optatus

SeUalintecvals am lange pane CarMate rs 2-)oh rao sock lence chel Haale, aula: th rsh ates 4

4—Scutellum well developed, transverse, broadly angulate and acutely cuspid
at apex; beak very slender, strongly arcuate, nearly smooth, cylindric and
attached at the lower part of the head in profile; antenne long and slender,
at rather behind basal third, the club long and very slender, with subequal
SEP MMeIUES ves [Mnys Wen OmMLEIILINOSETUSITIONA| Cetra sonia is on aay stakes ates Costovia

Scutellum nearly similar; beak of normal structure, long, arcuate, rather slender,
coarsely sculptured and feebly tapering, the antenne medial in insertion,
the club narrow and elongate, gradually pointed, the segments subequal in
lengths ss iyperin canenicall7s MOV. Rosca feck ce soo ee Ct Parasyprestia

Scutellum with oblong and parallel, posteriorly truncate and densely clothed
median part; pronotum gibbous; antennal club much smaller, less elongate
and with relatively larger basal segment. [Type T. scutellatus nov.|

Tripestes

5—Strial intervals wholly flat; sculpture throughout very coarse and extremely
dense; beak arcuate, strongly sculptured, the antennal club rather narrow,
elongate-oval; scutellum moderate, subquadrate. Mexico. [Type P.
Cag neS: (Clotanil|. os ctetestied 65 Be de eae bc tae docouies Chait icici Pseudoptatus
6—Beak nearly straight; antenne inserted behind the middle; prothorax not
rapidly inflated basally; body very large in size. [Type E. pennatus Pasc.]

Eurypages
Beak arcuate distally; antennze submedial; prothorax rapidly inflated basally;
body moderate in size. [Type S. amplicollis nov.]............Syprestia

Optatus Pasc. and Pseudoptatus Chmp., occur only in the Central
American region and need not be referred to further; Macroptatus
Heller, also occurs in that region solely so far as known, and I have
seen no representative of championt HI., which is one of the largest
of the Barine. My single example of Pseudoptatus dentipes was
taken by Prof. Wickham at Cuernavaca, Mex. The genus Pseud-
ambates of Champion, would seem, also, from its general outline,
to be better placed in this tribe than in the Ambatini.

I am quite convinced that Eurypages, Syprestia and Macroptatus,
although having the anterior coxe well separated, are more appro-
priately assignable to this tribe than to any other; in fact otherwise
it would be necessary to erect a distinct tribe for them, which, as
these cox are separated though narrowly in Pseudoptatus, would
seem to be unnatural. There is a certain community of facies
pervading the entire tribe as composed above.

22 MEMOIRS ON THE COLEOPTERA

Lydamis Pasc.

The species of this genus are rather numerous and I have not
seen the type named in the table. The body is rhomboidal, gener-
ally densely clothed with variegated scales, the beak evenly arcuate,
cylindric and strongly sculptured, the antenne medial, the first two
joints of the funicle rather elongate, subequal, two to four also more
or less elongate and decreasing gradually, the outer three short, the
club elongate-oval, gradually pointed and with its first segment
much less than half the mass. The scutellum is well developed,
transverse, flat, densely clothed and with its hind margin somewhat
sharply angulate. The ten species in my collection, all of which
seem to be undescribed, are as follows:

Elytra with nearly uniform to confusedly mottled dense vestiture of more or less

fulvous’ Scales yee teins seats rolex ies Sikuetl salen Soya idl crac OR ao Sy eee a 2
Elytra black, uniformly clothed with minute dense blackish squamules, crossed
by two white fascie—near basal and behind apical third...............8
2—Larger species, not less than about 7 mm. in length...................++-3
Smallesispeciesonlyaboutes mim sinelenotil yal sien eae aie ae eee 7
3—Elytra with very dense and virtually uniform covering of reddish-brown scales;
antennallichabvOowvalsamciccene «nescbs cesitecacs aeaere olson) chet yc ae a 4

Elytra with dense fulvous scales, mottled confusedly with black.. : 55
4—Form rather broadly rhombic, piceous-black, the surface wholly concealed
above by the dense narrow fulvous scales, with feeble narrow oblique lateral
paler streaks and a darker sublateral area along the base on the pronotum,
the elytra with slight whitish mottling toward apex; scales of the under
surface dense and brownish-white, with a denuded space at the base of the
propleura laterally, the abdomen with a large shallow impression clothed
with brown scales continued to the apex, apparently similar in both sexes;
beak feebly arcuate, somewhat longer than head and prothorax, densely
punctate almost throughout, costulose and squamose, becoming smooth and
subglabrous distally; antennz submedial in both sexes, the first three funicu-
lar joints elongate; prothorax two-sevenths wider than long, the sides rather
feebly converging and broadly arcuate to the laterally constricted apex,
which is sinuate laterally and less than half as wide as the base, the basal
lobe narrow, not a sixth the total width; median line carinate; punctures
strong, very dense; scutellum parallel, twice as wide as long, densely squa-
mose, sharply cuspido-angulate at apex; elytra triangular, with feebly arcuate
sides, a third wider than the prothorax, the humeri rounded; strie deep,
moderate, somewhat inconspicuously punctate; intervals all flat, densely
punctate; femora stout, strongly dentate; tibie fluted. Length (oc 2)
9.0 mm.; width 5.4-5.6 mm. Brazil (Chapada). October. Three speci-
GILES UCHR LARTER ER Ian cus thee eS EMTS OIG Lees ME AIRa iors Srofere'o wo nore ferruginea n. sp.
Form less broadly rhombic and rather smaller in size, similar in almost every
feature of sculpture and vestiture; beak still more obviously longer than the
head and prothorax, the antenne slightly beyond the middle in the type,
distinctly shorter than in the preceding, the club shorter, oval, more rapidly
pointed; prothorax shorter, two-fifths wider than long, the sides more rapidly
converging from the base; apex very much narrower than half the base, the
median lobe of the latter truncate and wider, more than a sixth the total
width; scutellum narrower, the apex more prolonged in a very acute and
more gradually attenuate cusp; ante-coxal parallel impression similar, densely

BRAZILIAN BARIN 23

clothed. Length () 8.3 mm.; width 4.8 mm. Brazil (Chapada). Sep-
HEV) O20 SB ee CERO ae bist | a Pb) Unt oe a subsimilis n. sp.
5 Antennal club rapidly and sharply conical, its basal segment broad and barely a
third the total length; scutellum not grooved. Body rather broadly rhombic
in form, convex, black, the dense linear fulvous scales above with three elon-
gate black denuded spaces at each side of the pronotum, two near the strong
median carina and one antero-lateral; on the elytra the black denudation
forms very irregular broken fascia or sometimes isolated smaller spots;
linear scales of the under surface scarcely paler and not quite so dense, with
the prothorax denuded throughout the width at base, the squamules sparse
on the met-episterna except at apex and base; large basal abdominal im-
pression more distinct and subdenuded in the male; beak similar in the sexes,
rather thick, a little longer than the head and prothorax, densely sculptured,
costulose and squamose, becoming smooth, subdenuded and finely punctate
distally; antenne slightly beyond the middle, moderate in length; prothorax
two-fifths wider than long, the sides strongly converging and broadly, evenly
arcuate from the base; apex two-fifths as wide as the base; punctures dense;
scutellum transverse, trapezoidal, the middle of the apex acicularly pro-
longed; elytra ogival, two-fifths wider than the prothorax, the apex more
obtuse than in the two preceding, the humeri similar; striae coarser, deep,
obscurely punctate; intervals and legs almost similar. Length (%@)
7.0-8.0 mm.; width 4.0-4.8 mm. Brazil (Chapada). February. Seven
SPECI SHS aE eT: are ers he Rt Core al edo) MLS 2 variegata n. sp.
Antennal club oval, not broadest basally; scutellum grooved along the middle. . .6
6—Body not very broadly rhombic, moderately convex, black, with small dense
lineiform scales above, fulvous in color but partially denuded in an elongate
basal inner, and an anterior elongate outer, streak at each side of the pro-
notum and also in some very irregular spots on the elytra, the whiter scales
of the under surface disposed somewhat as in the preceding, the abdominal
impression shallow and with sparser squamules; femora uniformly clothed
with yellowish scales; beak cylindric, nearly straight, arcuate distally, a
third longer than the head and prothorax, sculptured and clothed as in the
preceding; antennze well beyond the middle, the third funicular joint but
little longer than wide and only half as long as the second; prothorax in
outline, carination and sculpture as in variegata; scutellum transverse,
acicularly cuspid at apex; elytra as in the preceding but more narrowly
ogival, rather obtuse at apex, the subapical umbo similarly feeble; striae
not so coarse, very deep, obscurely punctulate; intervals flat and densely
punctate. Length (o’) 7.2 mm.; width 4.2 mm. Brazil (Chapada). One
of OS LIA Ls REN RAE YEE Gy HS Sic Sesiccs apotastac sn ae bos five oS tawamtoweus sats maculata n. sp.
Body very much as in the preceding, the subdenuded oblique broad lateral
pronotal line almost entire, the inner area only evident at base; pronotal
punctures more distinct and much less dense, the scales slightly separated
and the surface lustre more shining; beak similarly long in both sexes,
thicker and more sculptured in the male, with the antenne more distinctly
beyond the middle, the third funicular joint a little more elongate, much less
than half as long as the second; pronotal carina moderate, polished and
smooth; basal lobe truncate, about a fifth the total width; scutellum similar
in form but more coarsely sulcate along the middle; elytra similar, except
that the punctulation and squamules are less dense, the latter also coarser
and longer; abdomen only just visibly impressed basally and similarly
squamulose in both sexes. Length (o 2) 7.0-7.5 mm.; width 4.0-4.4 mm.
Brazil) \(Santarenn)y bree specimensy 2.6 oe 8 Of confusa n. sp.
7—!orm rhomboid, rounded at apex, convex, feebly shining, black; narrow ful-
vous scales of the pronotum rather sparse, not concealing the sculpture,

24 MEMOIRS ON THE COLEOPTERA

except in a narrow oblique entire line at each side; on the elytra the vestiture
in the type is mostly denuded accidentally, but the fulvous scales seem to be
rather sparse and are variegated posteriorly with white flecks; on the under
surface the pale scales are narrowly separated, becoming fine and incon-
spicuous on the met-episterna and broadly denuded on the prothorax basally;
beak feebly, evenly arcuate, shorter, barely longer than the head and pro-
thorax, rather thick, abruptly less so beyond the antenne, which are at
three-fifths, the club elongate-oval, the first two funicular joints notably
elongate, the third more than half as long as the second; prothorax shorter
than in the preceding section, nearly one-half wider than long, the evenly
converging sides broadly arcuate; apex nearly half as wide as the base, the
prominent basal lobe rounded; punctures rather strong, dense, longitudinally
united; carina distinct, with fine summit; scutellum short and transverse,
the cusp acute; elytra of the usual form and proportion, much wider than
the prothorax, differing from any other species in having the flat and coarsely,
densely punctured intervals carinate laterally and posteriorly; striz rather
coarse and deep; legs as usual; abdominal impression narrow, feeble and
not differently clothed in the male. Length (co) 5.3 mm.; width 2.8 mm.
Brazil (Santarem). (One -spectmen:co. 4. 056 be eee parvula n. sp.
8—Prothorax black, with an even white arcuate squamose line extending from
before each coxa transversely outward, bending backward to the base,
becoming visible from above, also with a median elongate-oval and more
anteriorly pointed spot of dense orange scales on the pronotum, widest be-
hind the middle and extending from apex to base. Elytral ground opaque,
velvety-black, finely densely punctate like the black pronotal areas, the trans-
verse entire fasciz whitish, clearly defined and dense, the anterior unevenly
arcuate, at two-fifths, the posterior at three-fourths, not attaining the sides
and forming an even chevron, the apex also densely whitish; under surface
densely albido-squamose on the entire mes-episterna, at the anterior end of
the met-episterna and at the sides of the abdomen; beak as long as the head
and prothorax, feebly arcuate, rather thick, a little less so beyond the an-
tenne, carinate dorsally and squamose basally, finely punctured and nude
beyond the antenne, which are medial and of the usual structure, the club
oblong, pointed apically; prothorax conical, with nearly straight sides, a
little wider than long, the median carina moderate and not exposed; scu-
tellum flat, the apex briefly aciculate; elytra of the usual form in the pre-
ceding species, much wider than the prothorax, the striz rather fine; intervals
flat on the flanks—more broadly behind—having each a very fine medial cari-
nule. Length (o’) 7.3 mm.; width 4.3 mm. Brazil (Chapada). One
SPCC UMIETR IM i's" ays cee 2 are Memeat, GNI NO RR R E eat ke ae el centralis n. sp.
Prothorax with the same densely squamose inferior whitish line as in the pre-
ceding, except that it is wider anteriorly, involving the entire exterior pronotal
edge, but the entire pronotum, having the line mentioned as a lateral limit,
is uniformly and densely clothed with pale linear scales, with a short trans-
verse basal denuded spot at each side of the middle..................... 9
9—Strial interval behind the humeri alone carinulate and, even this, not traceable
much behind the middle. Body rhombic, convex, black, the antennal
funicle dark rufous; dense vestiture of the pronotum and scutellum fulvous,
becoming whitish on the basal lobe and elytral humeri; anterior whitish
fascia of the elytra straight from suture to fifth stria; at two-fifths a dis-
connected broader straight fascia extends from the fifth stria to the margin;
at apical third there is an angulate fascia, not extending to the margin, the
anterior apex of which is connected on the suture with the anterior fascia
by a narrow and partially fulvous white vitta; apex loosely white, except
on the suture; beak rather longer than the head and prothorax, formed as

BRAZILIAN BARIN 25

usual, the antenne submedial, the club triangular, acute, broadest basally;
prothorax conical, wider than long, strongly carinate and densely, rather
strongly punctate; scutellum aciculate at the middle behind; elytra ogival,
with rounded apex, scarcely a third wider than the prothorax; striae rather
coarse and deep, with distinct and well separated punctures along the bottom;
intervals flat, finely, densely punctate; abdomen with deep glabrous basal
impression, the white scales of the general surface becoming fulvous along its
margins. Length (o) 7.2 mm.; width 4.2mm. _ Brazil (Chapada—campo).
September: «Onerexananpl esaenac) -cderaci ae sce cist pei sess ovlis) siajiev ssa’ balteata n. sp.
Strial intervals throughout on the flanks carinulate almost tothe apexes. LO
10—Body nearly as in the preceding in outline but slightly stouter; integuments
black; dense uniform squamules of the pronotum pale yellowish in color,
also on the scutellum and humeri; anterior elytral fascia continuous from side
to side and feebly, irregularly arcuate, with interruptions as usual at the striz;
posterior angulate fascia rather broken, the sutural line uniting it with the
anterior fascia broader than in balteata and very uneven; divided apical spot
larger than in that species; scales beneath white; beak barely as long as
the head and prothorax, very feebly arcuate, notably thick, loosely squamu-
lose and carinate, becoming thinner distally, finely punctulate; antenne
slightly beyond the middle, nearly as in the preceding, the triangular club
with more arcuate sides; prothorax conical, wider than long, with the usual
lateral constriction at apex; punctures dense, the carina strong, but with
its summit fine and not exposed; scutellum as in balteata; striae moderate,
deep; intervals flat, finely, densely punctate; abdominal impression deep,
less glabrous than in the preceding, almost entirely covered with fulvous
scales, except at the middle of the first segment. Length (o) 7.5 mm.;
width 4.35 mm. Brazil (Chapada). November. One example.
luieicollis n. sp.
Body nearly as in the preceding but not quite so stout; color similar, the antenne
piceous; under surface rather sparsely squamulose and shining, densely
clothed in manner stated on the prothorax; scales of the pronotum small,
slender and close, fulvous, in color, fine, fulvous and sparse in the humeral
spot; surface of the elytra black as usual in this group and with widely
scattered small irregular spots of white squamules; only the posterior
chevron is distinct, with traces of the sutural line; beak evidently longer
than the head and prothorax, very feebly arcuate, rather shining, coarsely
punctured, finely distad, moderately thick, costulose and loosely squamulose
basally, somewhat reduced in thickness and smooth distally and_ finely
punctulate; antenne at four-sevenths (¢@), three-fifths (c”), the club with
deep sutures, subtriangular; prothorax rapidly conical, much wider than
long, the sides feebly arcuate; punctures strong, dense, longitudinally
coalescent, the carina distinct, with nude and shining summit; scutellum as
in the preceding; elytra also similar but only a fourth wider than the pro-
thorax; striz rather coarse and deep; intervals flat, densely punctulate;
abdomen broadly and shallowly concave and loosely, evenly squamulose
basally in both sexes. Length (9) 6.9-7.7 mm.; width 4.0-4.2 mm.
Brazil (Chapada). October. Three specimens........... diffrangens n. sp.

At least the humeral interval of the elytra is feebly carinulate in
all the species, but in some, such as parvula and centralis, there are
several others of the lateral intervals feebly carinulate, especially
behind. The genus is probably a large one in Brazil and occurs
also in the Central American region.

26 MEMOIRS ON THE COLEOPTERA

Costovia n. gen.

The type of this genus is moderately small in size, not at all
unlike the species of Lydamis in general appearance, with identical
scutellum—flat and cuspid medially at apex—and feebly concave,
loosely squamulose abdomen at base; it is therefore very surprising
that the strangely Balaninus-like beak and mandibles are observable
in profile, and the antennal club is wholly different from that of
the preceding genus, the club being very elongate and cylindric,
gradually pointed apically; the funicle is also much more elongate
and slender, the first four joints much, the fifth slightly, elongated.
_ The type is the following:

Costovia tenuirostris n. sp.—Body oval, only faintly subrhombic in outline,
convex, piceous, the beak, except basally, and the tarsi black, feebly shining and
rather strongly sculptured; vestiture above in great part accidentally denuded
in the type, the scales beneath close, rather broad and yellowish, largely denuded
on the metasternum and side-pieces, smaller and sparser on the abdomen basally;
beak distinctly more than half as long as the body, very slender, strongly arcuate,
cylindric, smooth, nude and nearly punctureless throughout, attached near the
lower limit of the eyes; antennz a little behind basal third, slender; prothorax
short, three-fourths wider than long, rapidly conical, with broadly arcuate sides,
the broadly and feebly constricted apex distinctly less than half as wide as the
base, the basal lobe wide and truncate; punctures strong, dense and longitudinally
confluent; median line narrow, nude, polished and slightly convex, not carini-
form and extending from basal fourth very nearly to the apex; scutellum trans-
verse, cuspid at apex exactly as in Lydamis; elytra ovoidal, rather obtuse behind,
only a fourth longer than wide, fully a fourth wider than the prothorax; striz
moderate, deep, punctured along the bottom; intervals feebly convex and coarsely,
densely punctured, all of them distinctly carinulate, some becoming nearly
simple basally, the humeral strongly for some distance; legs strongly and closely
punctured, the femora moderately clavate, the spicule distinct, the general type
as in Lydamis, but with straight and basally connate claws. Length (2) 5.8
mm.; width 3.2 mm. Brazil (Chapada—forest). November. One specimen.

It is to be regretted that almost the entire upper surface is
denuded of pubescence in the only known specimen.

The beak in this genus is exactly as in Balaninus, and projects
from the lower part of the head in the same way; the mandibles are
nearly similar and, in the latter genus, the anterior cox are also
in close contact. In every other respect, however, there is radical
divergence; the strongly ascending mes-epimera, large and trans-
verse, posteriorly aciculate scutellum, connate tarsal claws and
shape of the prothorax are all very different in the two genera. It
undoubtedly constitutes, in fact, a most interesting case of con-
formity in development in certain parts of the body, brought about
by similar life habits in two distinctly different subfamily groups.

BRAZILIAN BARINE 27

Parasyprestia n. gen.

The general outline in this genus is almost exactly as in Lydamis,
being strongly rhomboidal, but the antennal club is very different
and the tarsal claws straight and basally connate. The scutellum
is of nearly similar form, but is smaller, more convex, transversely
subquadrate and has its apex acicularly cuspid medially. The
abdomen is feebly concave and finely and sparsely covered with
hair-like squamules in the type, which may be described as follows:

Parasyprestia carinicollis n. sp.—Integuments black, very unevenly clothed,
the pronotum broadly at the sides with dense fulvous squamules inclosing four
rounded—the antero-inferior triangular—dense white spots; squamules sparse
medially and on most of the under surface, very minute and sparse on the shining
scutellum; on the elytra the squamules are small, not very dense and confusedly
fulvous and white with some black subdenuded mottling, of moderate size and
generally rather sparse beneath; beak of almost the usual form in Lydamzs, but
more than half as long as the body, nearly straight, feebly arcuate distally, moder-
ate in thickness, feebly tapering throughout, closely punctured, feebly and sparsely
so toward apex, slightly tumid above between the eyes; antenne very slightly
beyond the middle, the funicle piceous, with the first two joints much elongated,
the next two slightly, the club elongate, black, suboval; prothorax rapidly conical,
with very feebly basally arcuate sides; apex scarcely half as wide as the base, the
lobe of the latter feebly sinuate, with slightly nodiform angles; punctures strong,
dense, somewhat confluent; medial carina high, with polished nude summit, not
quite attaining the base; elytra parabolic, with nearly straight sides and broadly
rounded apex, only a fifth longer than wide, three-sevenths wider than the pro-
thorax; humeri evenly rounded; stria moderate, punctulate; intervals flat,
finely, closely punctulate, 3 and 9 sharply carinate except basally and api-
cally respectively, also most of the others toward apex, excepting I and 2; femora
only feebly clavate, acutely spiculate beneath. Length (9) 6.2 mm.; width 3.6
mm. Brazil (Santarem). One specimen.

Easily recognizable by the thoracic vestiture, long beak and
very elongate-oval antennal club.

Tripestes n. gen.

This is another at present monotypic genus, necessitated by a
small species, conforming in general to the principal characters of
the Optatini, but with shorter beak and less advanced antennee
than in the preceding or Lydamis, which latter it more closely
resembles; the oval antennal club is smaller and much less elongate
than in Parasyprestia, and its basal segment is larger, constituting
almost half the mass; the alternately carinate strial intervals are,
however, a good deal as in that genus; the scutellum differs radically
from either. The femora are moderate in thickness, with very
small aciculate inferior tooth, and the tibiz are fluted as in Lydamis,
but the third tarsal joint is shorter and more transverse. The
type species may be described as follows:

28 MEMOIRS ON THE COLEOPTERA

Tripestes scutellatus n. sp.—Form oval, only faintly rhombic, convex, black,
the antenne dark piceous; vestiture of the pronotum of fulvous, finely hair-like
squamules, well separated, subdenuded in a broad line at each side of the middle,
white toward base of the median line and in a few minute points in a transverse
median line; scutellum transversely triangular, glabrous, the median part being
an oblong parallel truncate area, which is extremely densely clothed with pure
white squamules; elytra irregularly variegated, having fine and sparse squamules,
mostly fulvous, two white marginal spots on each behind the middle being more
conspicuous; under surface with close white squamules, very dense throughout
the first two abdominal segments, the remainder of the abdomen abruptly gla-
brous and shining, excepting a few scales at the extreme sides; beak moderately
thick, feebly arcuate, shorter than the head and prothorax, finely, not densely
punctate, the antenne slightly behind the middle, the first four funicular joints
moderately elongate, somewhat decreasing in length; prothorax conical, slightly
wider than long, the sides only feebly arcuate; apex sulcate on the flanks, arcuate,
less than half as wide as the base, the basal angles rounded, the lobe broadly
rounded; surface strongly gibbous, highest behind the middle, the median line
a shining low carina; punctures rather fine, very densely longitudinally confluent;
elytra a sixth longer than wide, a fourth wider than the prothorax, obtusely oval,
with broadly and feebly rounded humeri; strize moderate but deep; intervals
closely punctulate, 3, 5, 7 and 9 strongly carinate almost throughout, the others
flat; abdomen not concave at base. Length (9) 4.3 mm.; width 2.4 mm.
Brazil (Rio de Janeiro). November. One example.

To be distinguished at once by the oval form, gibbous pronotum,
very remarkable scutellum and strong, rather even carination of
the alternate strial intervals; also by the bipartite abdomen as
described above.

Eurypages Pasc.

The two following genera depart conspicuously from those that
precede by the notable separation of the anterior coxz, though in
general features they conform very well, and I have no doubt are
best placed in the Optatini. In the present genus the body is of
large size, oval, feebly subrhombic in outline, with convex surface,
long and very nearly straight beak, moderately thick, strongly
inferiorly dentate femora, fluted tibiae and thick connate tarsal
claws. The anterior legs are longer and with more dilated and
fimbriate tarsiin the male. The scutellum is transverse, emarginate
at base, rather convex, coarsely, sparsely punctate and medially
squamose, its surface and the angulate cuspidiform apex as in
Lydamis and some other genera of this tribe. The single species
in my collection may be described as follows:

Eurypages rectirostris n. sp—Not very broadly suboval, convex, with deep
black integuments and antenne; vestiture above of large linear ochreous-yellow
squamules, fine and sparse on the pronotum, except in denser areas along the
median line and indefinitely at the sides anteriad and posteriad; elytra with the
squamules close-set, forming a very irregular curved subbasal and broader slightly
post-median fascia and large apical spot, also a few areas laterally between the
two fascize, elsewhere finer and sparse, all the squamules arranged obliquely on

BRAZILIAN BARINA ; 29

the slopes of the medial carination of each interval; on the under surface the
scales are of exactly the same color, narrowly separated and unevenly sparser or
more condensed; beak long, three-sevenths as long as the body, very feebly
arcuate, thick, subcylindric, densely punctured and feebly squamulose basally,
nude and finely, sparsely punctate distally; antenne rather thick, a little behind
the middle, the first four funicular joints equal in length and slightly elongate,
the outer joints coronate with thick pale sete, the club rather small, gradually
pointed; prothorax only just visibly wider than long, the converging sides dis-
tinctly and very evenly arcuate from base to the feeble apical constriction, the
apex unevenly arcuate and less than half the basal width; base deeply bisinuate,
the lobe rounded, the median line with a broad flat nude carina, which is narrower
anteriad and abbreviated just behind the middle, the surface thence somewhat
concave to the base; punctures coarse, coalescent in grooves, which are mostly
oblique; elytra nearly a third longer than wide and a third wider than the pro-
thorax, oval, the striae unequally coarse to rather fine longitudinally; intervals
all obtusely but conspicuously carinate, the carinze irregular in thickness; humeri
broadly exposed, rather narrowly rounded; abdomen feebly concave and more
sparsely and finely squamulose basally. Length (2) 13.7 mm.; width 8.3 mm.
Brazil (Chapada). January. One specimen.

This species is by far the largest Baride in my collection, and
differs from the type of the genus, described under the name pennatus
by Mr. Pascoe, in its more narrowly oval form of body, less trans-
verse prothorax, less posterior and much more uneven transverse
elytral fascize and in the presence of a large apical area of dense
scales. Pennatus was described from a male specimen, said to have
been taken at Morro Velho, Brazil.

Syprestia n. gen.

This genus is related to Eurypages in the separation of the
anterior coxe, and in having the anterior legs of the male more
elongate and with the anterior tarsi more dilated and more con-
spicuously fringed at the sides in that sex, but the body is
much smaller in size and more rhomboidal in outline, the prothorax
shorter and more inflated basally, the beak more slender and much
more arcuate and the antennal funicle is of quite different structure,
the second joint here being greatly elongate and very much longer
than the first. The pronotum is gibbous when viewed in profile
and not simply and feebly convex as it is in Eurypages. As in
Lydamus, the large and feeble concavity at the base of the abdomen
is virtually similar in the sexes. The species are doubtless rather
numerous, the five at hand being distinguishable as follows:

Antennal club oval, gradually and finely pointed; elytral sculpture finer......2
Antennal club notably narrower and much more elongate; elytral sculpture very
COALS UIen pea rr em EN TRE a Se ie et ic wrens el ca Sete Dh Nt, i aes ha | ie) 4

2—Body larger and stouter; abdomen glabrous but not impressed in more than
median third at base. Black, the antennz piceous; vestiture of stout linear
scales close on the pronotum, broadly yellowish at the sides, with a fulvous
basal spot, fulvous medially, whiter on the median line basally and with a

30 MEMOIRS ON THE COLEOPTERA

large quadrate denuded spot at base and nearer the’ middle than each side;
scutellum with close yellowish squamules, transverse, aciculate medially
behind; elytra with close fulvous squamules, variegated with smail yellowish
areas, the squame not notably oblique; under surface with loose yellowish
linear squame, becoming fulvous laterally on all the sterna; beak fully
half as long as the body, moderately thick, closely sculptured, more finely
and sparsely distally, straight, arcuate in apical half; antenne long, medial,
the cuter joints not coronate—as usual in the genus and unlike Eurypages;
prothorax large, two-fifths wider than long, the sides parallel in less than
basal half, then rapidly converging and feebly arcuate to the slightly con-
stricted apex, which is barely two-fifths as wide as the base; lobe large,
rounded, nude; medial carina visible only centrally; punctures strong and
very dense; elytra triangular, with broadly rounded tip, not a fourth longer
than wide and a fourth wider than the prothorax, less than twice as long as
the latter; striz strongly and closely punctate; intervals all strongly and
subevenly carinate, less definitely so at base. Length (co) 8.7 mm.; width

5.4 mm. Brazil (Chapada). One specimen............. amplicollis n. sp.
Body smaller, less obese; abdomen broadly, feebly concave and glabrous medially
at base iniboth séxesis od 2.2 2o Seen ee ee wee wenn ye Ae

3—Form rhombic-oval, broadly convex, black, the antenne rufous, with black
club; pronotal squamules rather small, not very close, fulvous, of a lighter
shade in a feebly defined oblique sublateral line, in a lateral connecting area
just behind the middle and on the median line basally, also on the scutellum,
very sparse in a large basa! area at each side of the middle; on the elytra
fulvous, closer in a broad vague subapical fascia and in some other un-
definable fasciiform areas, which are separated by subdenuded spaces; on
the under surface moderately close and pale brownish-yellow; beak in
general form and sculpture as in the preceding, though slightly more slender,
rather more than half as long as the body and with the antenne medial in
both sexes, a little longer and more slender in the male; prothorax not so
large and fully a third wider than long, the sides strongly converging and
broadly arcuate anteriorly, gradually broadly rounding basally, becoming
nearly parallel near base, the latter deeply bisinuate, with large rounded lobe;
carina visible and nude only centrally; punctures rather coarse, densely
confluent; scutellum as in the preceding; elytra similar but rather narrower,
less obtuse a apex, the punctures and carine similar. Length (1 ?)
6.2-7.0 mm.; width 4.0-4.4 mm. Brazil (Chapada). October. Found in
the campo “etna Four specimens. . ae He ..chapadana n. sp.
Form and size nearly as in the preceding, the prothorax with. more evenly arcuate
converging sides throughout and widest more nearly at the base, the fulvous
squamules variegated with whitish at the sides, at apex and base of the still
more indefinite oblique Jine, and in a,transverse post-median external spot;
elytra nearly similar but with rather coarser variegated squamules, which
are more whitish in the paler areas; dense and slender squamules of the under
surface more whitish and faintly variegated with reddish-brown, the large
glabrous ventral space at base still less concave, almost flat; beak similar,
the antennal club a little larger and rather more elongate, gradually very
acutely pointed; pronotal punctures still coarser, coalescent, the elytral
sculpture almost similar; hind femora more coarsely squamose, the scales
whitish and not fulvous as they are in the preceding. Length (9) 7.2
mm.; width4.4mm. Brazil (Chapada—campo). December. One specimen.
objecta n. sp.

4—Body broadly rhomboidal, black, shining; pronotum strongly convex in
profile, more sloping anteriorly, sparsely, evenly clothed with fine hair-like
fulvous scales, whitish at the anterior and posterior angles; scutellum with

BRAZILIAN BARINE itl

very. sparse slender squamules, transverse, shining, spiculate at the middle
behind; elytra with very sparse and slender, hair-like scales, unevenly dis-
posed, white or slightly fulvous, in general rather oblique on the carinal
slopes of the intervals; under surface with close fulvous hair-like scales on
the entire prothorax, densely white at the outer limit of the mesosternum,
coarser though linear and uniform, slightly separated and yellowish-white
over the entire mes-epimera, the rest of the under surface almost glabrous;
abdomen broadly and very feebly concave at base and finely, remotely punc-
tate; beak distinctly more than half as long as the body, broadly arcuate
distally, carinate above basally, rather closely punctate and feebly squamu-
lose basally, nude and finely punctate beyond the antenne which are medial,
rufous, with black club; prothorax a fourth wider than long, the sides very
feebly converging and slightly arcuate to the middle, there rapidly rounding
and more strongly, rectilinearly converging to the subtubulate apex; base
deeply bisinuate; carina wide, polished and conspicuous from basal third,
becoming finer apically; punctures not evident, the surface with strong
oblique and well separated rugulation; elytra scarcely a sixth longer than
wide, fully two-fifths wider than the prothorax, the humeri evenly rounded,
widely exposed; striz rather feeble, becoming coarse and strongly punctate
basally; intervals all strongly carinate, the carine irregular in width and
height longitudinally, obsolete basally. Length (co) 8.5 mm.; width 5.5
mm. Brazil (Rio de Janeiro). January. One example.....carinosa n. sp.
Body much smaller in size and less sharply rhombic, black, shining; slender
fulvous squamules of the pronotum sparse, more irregularly arranged than
in the preceding and more condensed on the median line at base, also in a
small basal area midway between this and each side; scutellum polished,
glabrous and virtually impunctate, more convex, short, transverse, depressed
at the middle, the apical projection extremely small; elytra in form and
sculpture as in the preceding, the humeri more obliquely exposed at base,
scarcely visibly longer than wide, the apex rather obtuse, fully two-fifths
wider than the prothorax; vestiture of the same general nature but still
sparser and shorter, and, in the type, very inconspicuous; scales beneath
smaller, slender, sparser, similarly less so anteriad; abdomen subglabrous
and almost impunctate, convex at base and not at all concave at any point;
beak nearly similar, the slender antenne rufous; prothorax nearly similar in
general form and sculpture but rather smaller and less transverse, somewhat
less angulate at the middle of the sides and strongly but more evenly convex
above in profile, the highest point more nearly at the middle; anastomosing
rugulations more close-set, the carina very obtuse and broad centrally, obso-
lete at the apical tubulation. Length (2) 5.3 mm.; width 3.4 mm. Brazil
(Rio de Janeiro). October. One specimen... ............gibbicollis n. sp.

In gibbicollis the tubulate thoracic apex is not so distinctly less
than half the basal width as it is in carinosa.

Tribe DIORYMERINI.

The principal distinguishing characters of this large tribe of
purely neotropical Barinz are an exceedingly convex smooth
glabrous body, without trace of scaly covering at any point, and
at most, and very rarely, a few erect sete, in one remarkable
species—Prodinus setulosus—extending sparsely over the entire
upper surface. The convexity of the body is so great, that the

32 MEMOIRS ON THE COLEOPTERA

upper profile from front to elytral tip is almost circular in many
cases, and this feature is essentially characteristic of the present
tribe, occurring in none other of the subfamily. In addition to
these features the prosternum is, as a rule, deeply and abruptly
canalate but, although often capable of receiving the beak—always
moderate in length and frequently notably short—the sulcus never
affords so snug a shelter as in the Coleomerini or Ccelonertini which
follow. The femora are subparallel, not spiculate beneath, and are
sulcate along their under surface; the tibia are generally angulate
externally near the base. The coloration of the body is deep black
to piceo-rufous in whole or in part, but as a most remarkable
exception in this respect, a bright green metallic lustre prevails in
the genus Bonomius. An exception to the usually rather stout and
strongly sculptured beak is seen in Genestus, where this organ is
formed as in Balaninus, in a way recalling Costovia of the Optatini;
the form of the beak in the two sexes of Matrilia is radically differ-
ent, a wholly exceptional character in the tribe.

The impression or transverse tumidity at the base of the abdomen
differs from the homologous impression in the Centrinini and some
other tribes in being constant in both sexes, as observable also in
many parts of the Optatini, and these abdominal characters form
valuable taxonomic criteria. Sexual differences are, in fact, very
feeble, and in many cases are difficult to discover, generally affecting
slightly the relative rostral length and position of antennal insertion.

Relatively to the prodigious number of species, the genera are
not very numerous, those represented in my collection being as
follows:

Darsal.claws straight, connate iat bases. <579 srs scussindek (etcetera 2

Rarsal..claws iireet arcuate ns ails: acuen uct vet Ween dE Roel Pasa ccc eae ee

2—Tarsi subparallel and thick, the second joint transverse, nearly as wide as the
third; prosternum as in Diorymerus; pronotum coarsely and closely punc-
tured throughout; scutellum very tumid. [Type 7. puncticellis nov.]

Testalthea
Tarsi of the usual form; prgnotum never so conspicuously sculptured, generally
very sinooth;. scutellumwartable: 0: le 386 6 asa,to/n1s weceestes does eee ee 3

3—Prosternum deeply and abruptly sulcate, the cavity fully large enough to
receive the basal parts of the beak, which is more or less thick, with stout
decussate mandibles, the antennal club large, elongate-oval, very compact;
abdomen with a laterally well defined and more or less elevated median basal
punctate plaque, generally concave and perfectly similar in the sexes; tibize
dentate externally near the base, femora not spiculate, the third tarsal joint
well dilated; body large to moderate in size; scutellum variable though
usually well developed. [Type D. auritus Boh.]............. Diorymerus
Prosternum and mandibles as in Diorymerus, the latter strong, moderately bifid
and decussate, but rather prominent when closed; antennal club large,
evenly elongate-oval, densely pubescent as in Diorymerus and as long as the
entire funicle, the sutures distinct, the basal segment a third the mass;
abdomen without a differently sculptured basal plaque; middle and _pos-

BRAZILIAN BARINAE 23

terior tibiz obtusely dentate externally at basal third, the femora not denticu-
late; scutellum very small, convex, transversely subquadrate; pronotum
peculiar in being abruptly elevated medially toward base. [Type Diorymerus
LOT OGEL OSA OLAV A on AE RR SPIRO SOBRE an Ueeed von alle Wat ace Eulophodes
Prosternum abruptly and deeply sulcate, the channel not quite large enough to
receive the basal part of the beak, which is still thicker, more cylindric and
strongly sculptured, the mandibles wholly different, straight and prominent
as in Centrinus; antennal club small, oval, truncate at base, pointed apically,
densely clothed, the basal segment half the mass; tibiz rounded externally
at base, never dentate; femora minutely spiculate beneath; third tarsal joint
well dilated; abdomen in both sexes with a smaller median basal plaque than
in Diorvmerus, not well defined at the sides and very moderately impressed
along the middle; body in general aspect nearly as in Diorymerus, moderate
in size, with transverse scutellum. [Type /. plenicollis nov.].....Idiopsida
Prosternum very much more narrowly sulcate, the beak short, stout, with small
decussate mandibles, the antennal club large, very stout, oval, more shining
and with distinct sutures; abdomen wholly unmodified at base; tibiz short,
angulate externally at base, the femora unarmed; third tarsal joint much
more narrowly dilated; body very small in size, oval, with punctured pro-
notum, very small canaliculate scutellum and coarsely grooved elytra.

[yen Oran aaistr bess pes marty. sepsis toettes vn, See =o Whee Casas eats Crepantis
4—Beak as usual in the tribe, its upper surface continuous with the front, not
cylindric and always notably ssculptunediyie: seis Savy skeciee: eee ea Yai nae 5
Beak somewhat as in Balaninus, arcuate, cylindric, nearly smooth and attached
Atctheblowelmpant Otte Meads 2 \.is. asp cieades stoma: cious atkdielac Sissee weM OE 8

5—Mandibles short, coming together on an even straight line, prominent at apex
and also sublaterally; prosternum broadly and abruptly but not very deeply
excavated before the coxe; antennal club small, rounded; claws relatively
rather large, widely free; beak short or moderate in length, differing greatly
in the sexes; elytra grooved; scutellum small, channeled; prothorax tubu-
late at apex; body small in size. [M. diversirostris nov.]......... Matrilia
Mandibles decussate, arcuate, acutely bifid at tip asarule................... 6
6—Prothorax shouldered anteriorly, rapidly tubulate at apex; abdomen more
punctured but not distinctly swollen at base; integuments sometimes setu-
lose at least in part; prosternal canal deep and abrupt but often not as wide
as the beak; antennal club oval; scutellum small; elytra always grooved.

pL ne a lei 72 70 TES ATLO Nil siege sey coro Sy Same ene Tod Sisto Sr cO lage aoe eee eke Prodinus
Prothorax not shouldered, having evenly arcuate converging sides from the base
to the more or less evident sinusiatachersides;of theiapex.c. se qe esi ein 7

7—Body. rather elongate, rhomboidal in outline; prothorax broadly tubulate at
apex; prosternum and antenne as in Diorymerus; sculpture almost wanting
throughout, the integuments brightly polished and metallic; legs slender, the
femora parallel; base of the abdomen flat, smooth and unmodified. [Type
BRE CNCOULLIUUSTION AEM ere) ate Re A ret ON Sah aa ade als eects vaca eboneterae Bonomius
Body oval, moderate to minute in size, the prothorax with much more narrowly
or obsoletely tubulate apex; prosternum as in Diorymerus, the antennal
club smaller, more oval, also less compact as a rule though variable; integu-
ments deep black, rufo-piceous or sharply bicolored, very smooth and
glabrous; femora relatively not quite so narrow; base of the abdomen
generally swollen and coarsely, densely sculptured. [Type H. inflatus nov.]
: Hiotus
8—Body and prosternum somewhat as in Hiotus, the former however more
rhomboidal, with much more sharply marked humeri; antenne similar, the
club elongate-oval; mandibles similar, decussate, with bifid tips; abdomen
not distinctly swollen, though strongly punctured and setulose at base;
tarsi small, glabrous above. [Type G. filirostris nov.|............ Genestus

T. L. Casey, Mem. Col. X, Aug. 1922. ;

34 MEMOIRS ON THE COLEOPTERA

All but four of these genera are at present monotypic, but they
seem to be necessitated by very peculiar and isolated types of
structure.

Testalthea n. gen.

The type of this genus resembles Diorymerus in general characters,
but the body is more rhomboidal, with laterally rather prominent
though rounded humeri, and it differs a good deal in appearance,
due to the anteriorly more shouldered prothorax, with remarkably
punctate pronotum. The prosternum and antenne are of the
Diorymerus type, but the beak is more cylindrical, the mandibles
closely decussate and very obtuse. The genus differs, however,
from all others in the peculiar thick subparallel tarsi. The basal
abdominal segment is strongly and closely punctate, but the concave
median part is polished and with only a few remote smaller punc-
tures. The type may be thus described:

Testalthea puncticollis n. sp—Rhombic, very strongly convex, shining and
glabrous, piceous, the upper surface rufous, the posterior two-thirds of the elytra
black; prothorax at apex, head, beak and tarsi black, the beak nearly as long as
the head and prothorax, moderately thick, evenly and moderately arcuate; an-
tenne short, with large and elongate club, inserted slightly behind the middle,
a groove extending forward from the scrobes to somewhat beyond the middle;
punctures fine, not very dense; prothorax slightly wider than long, the converging
sides nearly straight, rapidly rounding anteriorly to the arcuate and tubulate
apex, which is less than half as wide as the base, the basal lobe deeply sinuate for
the scutellum; surface evenly convex, impressed at each side of the median lobe,
coarsely, closely punctate throughout, with a narrow entire smooth median line;
scutellum large, subquadrate, with rounded angles, rounded at the base, finely
punctulate, the median line much elevated as an obtuse ridge; elytra barely
longer than wide, nearly a third wider than the prothorax, triangular, with broadly
arcuate sides, the narrow individual apices rounded; striz very coarse, deep,
finely, remotely punctate along the bottom; intervals broadly convex, with very
fine sparse and confused punctulation; under side of the prothorax, meso- and
metasterna and mes-epimera very coarsely punctate, the met-episterna more
finely and closely, especially anteriad; metasternum with a deep smooth median
impression; legs strongly, densely punctate; tibiz with a very large sharp external
tooth near the base; fourth tarsal joint very short and thick. Length (9) 4.8
mm.; width 3.25 mm. Brazil (Santarem). One specimen.

Easily recognizable by the rhomboidal outline, coloration and
sculpture, large and axially elevated scutellum, coarse striz and
rather convex intervals.

Diorymerus Sch.
Diorygomerus G. & H.

The extremely numerous species, which may be estimated for
Brazil alone to amount to at east three hundred, adhere to a very
constant structural type as defined above, but there are nevertheless
many opportunities for the taxonomist to record them systemati-

BRAZILIAN BARINA oS

cally, especially when we consider the non-sexual nature of the
modifications at the base of the abdomen, for the ample series of
several species at hand demonstrate this as a decidedly remarkable
fact. The outward resemblances are so very pronounced that in
every collection many distinct species are confounded and placed
together, apparently indicating variability of form, while in reality
individuals of properly discriminated species point to a very small
amount of variation, except in size; the sexual differences, even, are
scarcely observable in most cases. The species forming the material
at hand are the following:

Elytra finely and feebly, sometimes obsoletely striate..................... oe
Elytra coarsely and deeply grooved; prothorax evenlyiconvex..aea025.2 25. 38
2—Body black and notably large or bicolored, though in diverse and variable

eee aan seen eee enemies. Serle asth iL Je stole Bee 3
Body deep polished black throughout, the average size very much smaller... .26
3—Scutellum flat or nearly so, not deeply emarginating the thoracic lobe.. ...4

Scutellum frequently very tumid, always deeply emarginating the thoracic lobe;

ObeE Lege route lltrataayamtae coher emcee As. ys Deer (An wl elyyers “oye 25
4—Upper surface bright brownish-rufous, the elytra black posteriorly, except in
UESULOEISES, <.-c1-6 Ce OPA MCP ee err acer RES cease ne a ee
Upper surface dark piceous-brown, generally shaded blackish posteriorly on the
ANT icc. cic 22) Bou pee anni aS ee ea Cae a Oe ee 6
Upper surface of the prothorax more or less bright rufous to black or piceous-
black, the entire elytra black, rufescent at the humeri in sinuatiscutis... . aT

auritus Boh.

Body very much smaller and relatively narrower, very smooth, rufous, the tho-
racic apex, head, beak, under surface and legs black; elytra black in posterior
three-fifths; scutellum"piceous; beak a little shorter, feebly arcuate, not so
cylindric and moderately, though rather densely, punctate, confluently on
the flattened sides basally; antennal club elongate-oval, as long as the funicle;
prothorax a fourth wider than long, the sides converging and feebly arcuate,
rapidly rounding anteriorly to the tubulate apex; surface scarcely more
prominent sublaterally but very rapidly sloping to the sides; surface very
smooth, the basal lobe with a very few punctures and feebly sinuate medially
at apex; scutellum subquadrate, feebly convex, smooth and impressed, sub-
sinuate at apex; elytra cuneiform, slightly longer than wide, barely a fifth
wider than the prothorax, the humeri rounded, less prominent laterally than
in auritus; strie very fine, feeble and subobsolete, with small feeble and

36 MEMOIRS ON THE COLEOPTERA

remote punctules; abdominal base concave and strongly, densely punctate
medially, the punctured area abruptly smooth at base. Length 6.4 mm.;
width 4.4 mm. Brazil (Rio de Janeiro). November. One specimen.
posticus n. sp.
Body still a little smaller, more regularly oval; coloration as in auritus, but with
the general rufous tint more obscure; .surface very smooth and polished;
beak shorter than in posticus, two-thirds as long as the prothorax, almost
similar in sculpture; prothorax shorter, nearly a third wider than long, the
sides evenly convergent and arcuate from base to the very much less abrupt,
feebler and narrower subtubulate apex; basal lobe narrower and truncate at
tip, smooth; disk impressed at each side of the lobe in a way not obvious in
posticus; surface more evenly convex, not so rapidly or deeply declivous at
the sides; scutellum smaller, flatter, subquadrate; elytra broadly oval, with
strongly arcuate sides and apex, scarcely as long as wide, a fourth wider than
the prothorax, the humeri not laterally prominent; striz obsolete, the minute
punctulation remote, the second with an elongate fovea at base, the sutural
a simple series of small punctures, becoming a coarse groove basally; con-
cave base of the abdomen sparsely punctate; tibia angulate externally near
the base as in the preceding. Length 5.2 mm.; width 3.7 mm. Brazil
(a single example, without more definite record of locality, from a European
Co (tell (2h 9) Ree aa Ney et Ee PP MER Earn are seating Sih nam, Fo enG eS chro brevirostris n. sp.
Body shorter and broader, more rhombiform than in brevirostris, very smooth,
the entire upper surface uniform brownish-red, the thoracic apex piceous;
under surface medially, legs and beak black; beak not very thick, evenly
and distinctly arcuate, three-fourths as long as the prothorax, evenly cylin-
dric, finely, feebly punctulate at the sides, gradually smooth distally, the
head finely but distinctly punctate; prothorax as in brevirostris, except that
the basal lobe is broader at tip and transversely impressed, and that the
basal impression of the disk at each side of the lobe is much feebler and less
foveiform; scutellum subquadrate, flat, a little wider than long and nearly
smooth; elytra triangular, with more narrowly rounded apex and evenly but
less distinctly arcuate sides and more narrowly rounded and distinctly
prominent humeral protuberances at the sides, not quite as long as wide and
a fourth wider than the prothorax; strie fine but distinct, being simple
series of small punctures externally but slightly impressed internally, the
sutural deep and grooved throughout the length; abdomen at base strongly
and rather closely punctate, with an abruptly deep and less punctate median
part. Length 5.5 mm.; width 4.2 mm. Brazil (a single example without
more definite indication of locality, received from Desbrochers des Loges).
testaceus n. sp.
6—Lateral prominences of the elytra at the humeri pronounced and rather con-

spicuous, though rounded, as usual in the genus...................0005: 7
Lateral prominences very broadly rounded and entirely inconspicuous; beak
distinethyfandmevenly arcuate; seen aces ee orient aatortor 10
7—Flytral striz or series distinct throughout, the sutural stria gradually becoming
conspicuouslyadeepiand' coarse towardibase:. . Gee oe eee ieee 8
Elytral striz and series fine and very feeble, the sutural stria not notably coarse
basalllyse tines feelin ce Siz a ERY AR Re eee er nen Unt enon et

8—Form rather rhombic-oval, larger in size, rufo-piceous above, the elytra
shaded black broadly toward suture and apex, but very indefinitely; head,
beak, under surface and legs deep black; pronotum densely, the elytra feebly,
alutaceous in lustre; beak not very thick and not over two-thirds as long as
the prothorax, feebly and evenly arcuate, smooth, shining and virtually
punctureless, the punctures very minute and sparse; antenne moderate,
the club not quite as long as the funicle; prothorax a third wider than long,

BRAZILIAN BARINE a7

the sides converging and very evenly, moderately arcuate, becoming just
visibly more arcuate anteriad to the large apical tubulation, two-fifths as
wide as the base; surface very even, rapidly declivous apically to the tubu-
lation; basal lobe evenly rounded, margined with some distinct punctures,
without adjoining basal impressions; scutellum rather small, short, smooth,
broadly canalate, the apex sinuate and bicuspid; elytra slightly longer than
wide, nearly a third wider than the prothorax, parabolic, the humeral promi-
nences laterally very conspicuous; striz very feeble, finely, remotely punctu-
late, more polished than the intervals; tibiz plectrate externaily near base;
abdomen with the quadrate raised basal area rather finely, sparsely punctate,
deeply impressed medially, transversely so along the base. Length 9.0 mm.;
width 6.0 mm. Brazil (Santarem). One specimen........breviscutis n. sp.
Form rhombic-oval, rufo-piceous and smooth above, elsewhere black: beak rather
short, very feebly arcuate, three-fifths as long as the prothorax, strongly
sculptured, flattened at the sides; antenne very short, the thick suboval
club as long as the funicle; prothorax a fourth wider than long, the sides
strongly converging, broadly and evenly arcuate from base to tubulation,
the latter scarcely more than a third as wide as the base, the basal lobe rather
narrowly and evenly rounded, subimpunctate, the disk at each side at base
with a deep subfoveiform impression; surface evenly convex; scutellum flat,
rather small, somewhat longer than wide, parallel, truncate and finely,
sparsely punctulate; elytra but little longer than wide, a fourth wider than
the prothorax, subcuneate, with arcuate sides, the humeral prominences
rather broadly rounded; striz very fine, almost obliterated, excepting the
sutural, all having small and remote punctures; abdominal impression
sparsely punctate, the punctures coarse subbasally, small thence posteriad;
tibia acutely and strongly dentate externally near the base. Length 5.6
mm.; width 4.0 mm. Brazil (Rio de Janeiro). October. One example.
curtirostris n. sp.
9—Body notably large, very obscure piceous above, smooth and slightly aluta-
ceous; beak ( ) feebly arcuate and strongly punctate on the flattened sides,
finely so dorsally, almost as long as the prothorax, with narrow feebler groove
beyond the antenne, the latter being well behind the middle, or (oc) much
shorter, still more strongly punctate at the sides, with broad groove, the
antennez more nearly at the middle; antennal club a little shorter than the
funicle; prothorax nearly as long as wide, with converging and feebly arcuate
sides to the feebly marked prominence at the middle, thence gradually more
rounding to the tubulation; basal lobe obtusely rounded, sometimes feebly
impressed and more or less punctate; scutellum quadrate, feebly convex,
sometimes a little longer than wide; elytra cuneate, slightly elongate, nar-
rowly rounded at tip, almost a third wider than the prothorax, the converging
sides straight behind the broadly rounded humeri; striz fine and feeble,
slightly more shining than the intervals and with remote and feeble punctures,
the sutural not stronger basally; sides of the inferior hind femoral sulcus (*)
fimbriate, and with the outer edge acutely dentate at the distal sinus; ab-
domen broadly concave and densely punctate and setulose basally in both
sexes. Length 10.5-10.8 mm.; width 6.8-7.0 mm. Brazil (Chapada).
September to November. Three specimens..............cuneipennis n. sp.
Body nearly as in the preceding but slightly smaller and less stout; beak (9)
not so long and distinctly shorter than the prothorax, cylindrical, nearly
smooth and only very minutely and remotely punctulate, especially distad,
though the flattened sides at base are rather strongly punctate, the anntene
near basal third, or (co) shorter, less cylindric, finely punctured, but with the
flattened sides strongly punctate throughout, with broader and longer channel
beyond the antenne, which are just behind the middle, the club shorter than

38

MEMOIRS ON THE COLEOPTERA

the funicle; prothorax as in the preceding, except that it is more distinctly
wider than long and with more conspicuous punctures on the basal lobe;
scutellum similar, quadrate; elytra similar in form and proportion, though a
little narrower and somewhat more narrowly rounded at apex, with the striz
and punctures slightly more distinct, the second stria similarly ending at
base in a small elongate fovea; posterior legs and the abdomen nearly similar
in both sexes, the external tibial tooth moderate. Length 9.1-9.8 mm.;
width 5.9-6.35 mm. Brazil (Chapada). Eight specimens...porcinus n. sp.

Body rather large, subrhombic, convex, smooth and very shining, black, the upper

surface dark piceous, gradually black on the elytra apically; beak three-
fourths as long as the prothorax, distinctly and evenly arcuate, rather thick,
the flattened sides coarsely and closely, the upper surface more finely and
rather closely punctate throughout; head deeply, not densely punctate,
more finely and sparsely between the eyes; antenne rather behind the middle,
the club not quite as long as the funicle; prothorax barely wider than long,
the sides slightly converging and feebly arcuate, more arcuate anteriorly to
the arcuate tubulation, which is a little more than a third the basal width;
surface subumbonately prominent at the summit of the flanks medially;
basal lobe with scattered punctures, broadly rounded, feebly sinuate medially,
without lateral impressions; scutellum smooth, quadrate, feebly and evenly
convex, the apex sinuate; elytra cuneate, with arcuate sides and broadly
rounded humeral prominences, longer than wide, two-thirds longer than
the prothorax and only a fifth wider, remotely punctulate; strie fine and
almost obliterated; abdominal concavity strongly, densely punctate and
coarsely setulose, smooth at base; subbasal tibial spines acute. Length
9.7mm.; width 6.25 mm. Brazil. Desbrochers des Loges. .longicollis n. sp.

Body subrhombic, narrower, black, the upper surface rufo-piceous throughout,

shining, though faintly alutaceous; beak rather long, almost as long as the
prothorax and evenly, somewhat strongly arcuate, cylindric, rather finely,
loosely punctate; antennz submedial, piceous, with the club black and long,
as long as the funicle; prothorax nearly a third wider than long, the con-
verging sides barely at all arcuate, more so anteriorly to the tubulation;
basal lobe with a few fine punctures and feeble impressions laterally, the apex
truncate; surface subevenly convex; scutellum quadrate, finely, sparsely
punctate, black, shining, the apex feebly sinuate, with rounded angles;
elytra slightly elongate, fully a fourth wider than the prothorax, cuneiform,
the humeral prominences broadly rounded; striz very fine and subobsolete,
remotely punctulate; basal abdominal area transversely concave and smooth
at base, the remainder broadly convex and rather finely, loosely punctate,
impressed medially toward apex; subbasal tibial spines strong and sharp.
Length 8.3 mm.; width 5.4 mm. Brazil (Chapada). December.
ordinatus n. sp.

Body smaller but of nearly identical outline, coloration and lustre; beak similarly

rather strongly, evenly arcuate and subcylindric, but rather more slender,
about as long as the prothorax, the punctures rather small, not dense but
distinct; head evenly, somewhat closely punctate, with a small punctiform
fovea between the eyes; antennal club a little stouter and less elongate;
prothorax as in the preceding, but with more evenly and strongly arcuate
sides from base to tubulation, the surface evenly convex; basal lobe with
rather strong punctures marginally, and with very faint lateral impressions,
the apex less broadly truncate; scutellum almost smooth, parallel, somewhat
longer than wide, sinuato-truncate at tip, the surface feebly declivo-concave
posteriorly; elytra in form and sculpture nearly as in the preceding, but with
slightly more obtuse tip and rather less broadly rounded humeral projections;
basal abdominal plaque strongly but loosely punctate, smooth and feebly

BRAZILIAN BARINE 39

concave along the base, the remainder broadly and feebly concave; tibize
nearly similar. Length 6.9 mm.; width 4.7 mm. Brazil. Desbrochers
GISSSISG Ere EIS a Dean Se i OC oe aE (a = AP enn incertus n. sp.
Body a little shorter and broader, still more rhombiform, the upper surface similar
in coloration and in the alutaceous lustre; beak nearly similar but not quite
so slender and slightly shorter than the prothorax, the antennal club stout,
gradually pointed and distinctly shorter than the funicle; prothorax longer,
barely wider than long, the sides less converging from the base, only feebly
arcuate, becoming more rounded anteriorly; surface nearly even; basal
lobe broader, truncate, plentifully punctate, smooth at the middle, not im-
pressed laterally; the punctures become fine along the base laterally and the
entire surface has infinitesimal sparse punctulation; elytra not longer than
wide, nearly a third wider than the prothorax, more abruptly expanding
behind the latter and with rather more prominent—though broadly rounded
—humeri than in zncertus; scutellum larger, quadrate, wider than long,
minutely, sparsely punctulate, broadly sinuato-truncate but not impressed
at tip; abdominal plaque nearly flat, impressed medially behind, rather
strongly, closely punctate and with numerous thick shining sete, which are
much longer and coarser than in incertus, the subbasal tibial tooth large and
acute. Length 6.8 mm.; width 4.9 mm. Brazil. Desbrochers des Loges.
semistriatus n. sp.

10—Scutellar stria distinct to the scutellum though fine. Body rhomboid-oval,
black, dark piceous throughout above, faintly alutaceous; beak as long as
the convex part of the prothorax (@), a little shorter (<), distinctly punc-
tured throughout and coarsely so on the flattened sides basally (<), or
almost impunctate except at the sides basally (2); antennal club elongate-
oval, a little shorter than the funicle; prothorax a fourth wider than long,
the feebly converging sides slightly arcuate, gradually more so anteriorly;
surface evenly convex, a little less so in the male; basal lobe feebly punctulate,
truncate, not distinctly impressed laterally; scutellum moderate, quadrate,
feebly convex, nearly smooth, sinuato-truncate; elytra cuneate, slightly
elongate, only a fifth wider than the prothorax, the strie fine, very shallow
and feeble, more shining than the intervals and finely, feebly punctulate;
external tibial tooth moderate and at a considerable distance from the base;
abdominal plaque broadly, evenly concave, strongly and densely punctate,
smooth in basal fourth or more. Length 7.6-8.3 mm.; width 4.6-5.4 mm.
Brazily(Chapada). , Five Specimensec, << a:5< 601,06 os vs ceed « piceus n. sp.
Seite llanicemago msoletedbasalll yi lotus a asacvog,-sigisucn ears bavapspisela Aca idy niche cation davlenc's - II
11—Form nearly as in the preceding but smaller and slightly narrower, not so
dark and more rufulous above, though obscure, the upper surface more
brightly shining than in piceus; beak nearly as in the male of the preceding,
the antennal club longer, but little shorter than the funicle; prothorax more
elongate, barely wider than long, the converging sides more evenly arcuate
from base to the apical tubulation, the latter slightly over a third as wide as
the base and broadly arcuate as usual; surface even, with sparse and ex-
cessively minute punctulation; basal lobe virtually impunctate, transversely
impressed and broadly arcuate, the lateral impressions almost obsolete;
scutellum a little wider than long, quadrate, sinuato-truncate, more polished,
feebly convex and minutely, sparsely punctate; elytra nearly as in the
preceding but narrower, the striz still finer and almost obsolete, the punc-
tures infinitesimal and scarcely observable; tibiz nearly similar; basal
abdominal plaque nearly flat, finely, rather loosely punctate. Length 7.4
Mi. ; Width, 4esemmnen Brazile (Chapada)... ccf o2 ss oon oot brunneus n. sp.
Form almost similar but still narrower, the upper surface nearly as shining but
more obscure piceous; beak longer and slightly more slender, fully as long

40 MEMOIRS ON THE COLEOPTERA

as the prothorax, shining, cylindric, finely and rather sparsely punctate,
somewhat more closely and less finely at the sides basally, these but slightly
flattened; antennal club shorter, elongate-oval, only three-fourths as long as
the funicle; prothorax a little more distinctly wider than long, the converging
sides less evenly arcuate and feebly so, more strongly anteriorly; surface
even; basal lobe truncate, not impressed and not evidently punctate, trun-
cate, the lateral impressions very feeble; scutellum quadrate, slightly wider
than long, smooth, feebly convex, arcuate at apex; elytra nearly as in the
preceding but still narrower, similarly substriate, the extremely minute
punctures distinct very near the base; hind tibiz similarly obtusely angulate
externally but at a point nearer the base; abdominal plaque distinctly,
rather closely punctate, only feebly concave and somewhat irregular, with a
transverse ridge near the middle. Length 6.8 mm.; width 4.35 mm. Brazil

(Chapadayis. 22a Ss Meee Seda a poeeee teen Ee cylindrinasus n. sp.
12—Species larger, never less than about 7.5 mm. in length................. 13
Species smaller, always less than 7 mm. in length.. oe ; Forres
13—Pronotum more or less umbonate on the Tipper “surface medially 1 near r each

SIGS ee ia Ble Rei Atel (eRe SINR ED ar Saray TRA roe RRC teen me a 14
Pronotum not evidently umbonate near the sides, though sometimes rather more

convex in that neighborhood; body above never intensely black.........17
14—The umbones rather more distinct as a rule, but often broadly rounded;

body darcer 1i'Sizes Nis Re isi ae ie re eee ye ae een eee 15
The umbones obtuse, the body smaller in size, generally more distinctly bi-

coloredshs4 ane OR Wee Re ee Heid roe Sa re Sis aint oe eee eee 16

15—Form rather short and stout, very shining and smooth, deep black, the pro-
notum piceo-rufous; beak only two-thirds as long as the prothorax, com-
pressed, feebly arcuate, strongly and closely punctate, more finely above,
the channel beyond the antenne broad and deep; antennal club gradually
pointed, not quite as long as the funicle; prothorax barely a fifth wider than
long; sides from above very moderately converging and nearly straight to
the narrowly rounded angulations, the line joining the latter from a postero-
oblique viewpoint subsinuato-truncate; apical tubulation a third as wide as
the base, the basal lobe strongly punctate marginally, the apex feebly sinuate,
the lateral impressions wanting; scutellum quadrate, slightly longer than
wide, broadly arcuate at base, feebly convex and with sparse and extremely
minute punctulation; elytra only a fifth wider than the prothorax, triangu-
lar, not longer than wide, the humeri broadly rounded, the apex narrowly
rounded; striz very fine but evident and with the punctures distinct and
less distant than usual; angulation of the hind tibie broad, near basal third,
being at an unusual distance from the base; abdominal plaque broadly con-
cave and very densely punctate, smooth at base. Length 8.8 mm.; width
6.4mm. Brazil (Chapada). November. One specimen. .truncaticollis n. sp.
Form less abbreviated, rhomboidal, shining, black and smooth, the prothorax
also black; beak still shorter, barely three-fifths as long as the prothorax,
very feebly arcuate, compressed, coarsely and densely sculptured, finely
punctulate above, the channels beyond the antennze broad and deep, gradu-
ally disappearing; antennal club decidedly shorter than the funicle; pro-
thorax longer, barely at all wider than long, the sides from above moderately
converging and nearly straight to the obvious though rounded umbones,
the line transversely joining which, from a postero-oblique viewpoint, is
broadly arcuate; basal lobe obtusely rounded, almost punctureless, the basal
impressions almost obsolete; scutellum quadrate, with some feeble punctu-
lation; elytra slightly elongate, a fourth wider than the prothorax, the much
narrowed apex rounded, the humeri very broadly rounded; striz very fine
and subobsolete, the punctures small, moderately to notably distant; ab-

BRAZILIAN BARINZE 41

dominal plaque broadly, evenly concave, slightly less densely punctate than
in the preceding; subbasal tibial angulation nearly similar. Length 10.3-
II.0 mm.; width 7.0-7.2 mm. Brazil (Chapada). November and Decem-
ber. Two specimens, exhibiting some difference in the convexity of the
Seutelbuim Saarinen eee ren a ee ora hc ke umbonaticollis n. sp.
Form rhombic; color deep black, the pronotum piceo-rufous; surface smooth;
beak two-thirds as long as the prothorax, feebly arcuate, stout, more slender
apically, compressed, coarsely, very densely sculptured, the smaller punctures
above strong, dense and longitudinally confluent in a manner very different
from the two preceding, where these punctures are minute and widely sepa-
rated; antennal club gradually pointed, continuous in outline with the funicle
and shorter than the latter; prothorax smaller than in either of the preceding,
as long as wide, the sides from above more strongly converging, very slightly
arcuate, the lateral prominences very obtuse and broadly rounded but still
distinct under certain oblique angles of view, the anterior outline strongly
arcuate; basal lobe strongly arcuate, somewhat impressed and with sparse
moderate punctures, without lateral impressions at the base: scutellum
narrower than long, parallel, with sinuate bicuspid apex, smooth and feebly
convex; elytra slightly elongate, fully a third wider than the prothorax,
triangular, with rounded tip and broadly rounded prominent humeri; stric
and punctures extremely fine or subobsolete, the sutural stria abruptly coarse
and deep for some distance near the-base; subbasal prominence of the hind
tibize very broad, obtusely rounded; abdominal plaque broadly concave, its
dense strong punctures, as well as those of the metasternum, conspicuously
setulose. Length 9.6 mm.; width 7.0 mm. Brazil (Chapada). October.
Onetexamplerwe ene aietem neh MO sahil ey oF distinguendus n. sp.
Form rather broadly rhomboidal, deep black and polished, the pronotum dark
rufous and alutaceous; beak concave beneath, two-thirds as long as the
prothorax, feebly arcuate and slightly tapering, compressed and strongly,
closely sculptured, finely and closely punctate on the upper surface, the
canal beyond the antenne very broad, concave and conspicuous; antennal
club shorter than the funicle; prothorax but little wider than long, the con-
verging sides arcuate, the umbones feeble and obtusely rounded; surface
with sparse and extremely minute punctures; basal lobe narrowly sinuato-
truncate at apex, rather coarsely punctate, without lateral impressions;
scutellum quadrate, feebly convex, minutely punctulate; elytra cuneiform,
just visibly longer than wide, between a fourth and third wider than the
prothorax, the apex and humeri broadly rounded; fine striz and punctures
subobliterated, barely traceable, the sutural stria more distinct toward base:
tibial tooth broad and not very acute though sharply defined; abdominal
plaque broadly and deeply concave, its moderate and very dense punctures,
as well as those of the metasternum, conspicuously setulose. Length 8.8
mm.; width 6.35 mm. Brazil (Chapada). November. One specimen.
cavirostris n. sp.
16—Body nearly as in the preceding but smaller in size and distinctly narrower,
polished, deep black, the pronotum paler, piceo-rufous; beak (o) and
antenne similar, except that the close punctures of the upper surface are
finer and coalescent in shorter grooves; the beak (”) isa little shorter, or (2)
longer, more cylindric and less punctured; prothorax very nearly similar
in its rapidly converging sides, but not so conspicuously narrower than the
elytra, and also slightly wider than long, the sublateral umbones rather more
evident; anterior outline by postero-oblique view strongly evenly arcuate;
punctures of the apical tubulation fine and sparse; basal lobe narrowly
truncate at tip, having numerous large lunate punctures, which are continued
along the entire base by smaller confused punctures, the lateral basal im-

42

MEMOIRS ON THE COLEOPTERA

pressions obsolete; elytra a fourth wider than the prothorax and very slightly
elongate, triangular, but with the sides posteriorly arcuate to the rather
narrowly rounded apex; humeri not quite so broadly rounded, though rela-
tively less prominent; striz fine but distinct, the punctures well separated
but larger and more conspicuous than in any preceding species of this section,
the sutural stria not modified basally; abdomen and metasternum nearly
similar but not so conspicuously setulose; subbasal tibial tooth rather obtuse
at tip. The description is drawn from the male as in cavirostris, but the
external inferior tooth of the hind femora is rounded at apex in the latter and
acute here. Length 8.0-8.3 mm.; width 5.35-5.6 mm. Brazil (Chapada).
Octobers.Nimejexamplessda Sacer punctirostris n. sp.

Body almost as in punctirostris in form, coloration and lustre, but evidently

narrower and a little smaller, and differing principally in having the similarly
close punctures of the beak a little coarser, the strong and rather close-set
punctures of the head not fine and sparse in a transverse area between the
eyes as there, but continuing close-set medially as far as the feeble median
impression at the base of the beak; prothorax smaller and narrower, with the
lateral elevations almost obsolete or far less distinct, the converging sides
from base to tubulation almost evenly arcuate; basa! lobe more narrowly
truncate and with fewer punctures; surface very even, the excessively
minute punctulation barely visible and simple; elytral strize finer and with
much finer, subobsolete punctures, the outline nearly similar, the quadrate
scutellum a little smaller; outer inferior prominence of the hind femora
rounded, not acutely angulate as in punctirostris, the prominent tibial tooth
nearly similar; abdomen nearly similar, the basal concave plaque densely
punctate, smooth at base. Length 7.5 mm.; width 5.2 mm. Brazil (Cha-
pada). October. One male specimen.:.-...5........-- densirostris n. sp.

Body nearly as in the preceding in coloration and outline, the prothorax smaller

and narrower than in punctirostris, obscure rufous; beak in the male two-
thirds as long as the prothorax, stout, closely and moderately punctate, but
it narrows apically in a peculiar manner; antennz just behind the middle,
the lateral channels beyond deep and conspicuous; punctures of the head
becoming fine and sparse throughout between the eyes; prothorax slightly
wider than long, the lower sides distinct from above, strongly convergent and
evenly arcuate, the feeble prominences leaving the entire lower edge visible
from above; base confusedly punctate, except at the middle of the lobe;
surface alutaceous, the extremely minute sparse punctules placed upon
feeble diffuse smoother elevations; scutellum flat, exactly quadrate, minutely
punctulate; elytra evidently longer than wide, triangular, with feebly arcuate
sides and narrowly rounded tip, a fourth wider than the prothorax, the humeri
prominent but rounded; surface very highly polished, the striz, excepting
the sutural, excessively fine and obsolete, the punctures fine, feeble and re-
mote; distal external inferior projection of the hind femora rather feeble and
obtuse in the male, the tibial tooth broad and low; abdominal plaque evenly
concave, strongly, closely punctate, smooth at base. Length 7.2-7.5 mm.;
width 5.1 mm. Brazil (Chapada—campo). October. Two male speci-
THONGS H 4 Bi seco Bs Reto Oe als DR ae One ae ee verrucicollis n. sp.

Body nearly as in the last but a little larger and stouter, with shorter elytra and

more brightly rufous pronotum; beak (co) almost similar but somewhat
longer, also basally thicker; prothorax nearly similar but broader, more
sharply trapezoidal when viewed postero-obliquely, the converging sides to
the more pronounced tumidities straighter; surface similar but the micro-
verrucations are smaller, higher, more sharply defined and sparser; basal
lobe similar; scutellum smaller and nearly smooth, quadrate, slightly con-
vex; elytra broader, not longer than wide, triangular, with arcuate sides,

BRAZILIAN BARINE 43

rather acute apex and prominent humeri, differing from the preceding also
very distinctly in the character of the striz, these not being extremely fine
and simple, but narrowly duplex, feeble, the punctures minute and remote;
abdominal plaque concave, densely and moderately punctate; hind femoral
outer inferior tooth distinct in the male, the tibial tooth broad and rather
obtuse. Length 8.0 mm.; width 5.4 mm. Brazil (Chapada). November.
Onermaleyexamiplewy megs ene ek cid ose oahosns ee, trapezicollis n. sp.
17—Form rhombic-ovoidal, the size notably large; upper surface piceous-black,
smooth, feebly alutaceous; beak in the female rather cylindric, feebly,
evenly arcuate, three-fourths as long as the prothorax, minutely and remotely
punctulate, strongly so on the flattened sides basally; antennz slightly be-
hind the middle, the rostral grooves beyond short but deep; club distinctly
shorter than the funicle; prothorax large, almost as wide as the elytra, fully a
fourth wider than long, the strongly converging sides arcuate, less so basally;
surface almost evenly convex; basal lobe broad, almost impunctate, the
apex sinuato-truncate; scutellum quadrate, smooth, flat, feebly sinuate at
apex; elytra slightly elongate, cuneiform, with narrowly rounded tip, feebly
arcuate sides and broadly rounded, scarcely at all prominent humeri, only a
fifth or sixth wider than the prothorax; striz extremely fine and feeble,
having small but evident, very widely separated punctures, the sutural stria
barely differing at all from the others, merely somewhat more visible; sub-
basal tooth of the hind tibie rather large, angulate; abdominal plaque
strongly, not very densely punctate, smooth at base, more impressed medially
toward apex. Length 11.0 mm.; width 6.8 mm. Brazil (Chapada).
Octobermatsimele females: ic: eC its Vick oe Sk. es amplicollis n. sp.
Form much narrower, smaller in size, black, smooth and rather shining, the
pronotum piceo-rufous; beak in the male two-thirds as long as the pro-
thorax, rather thick, feebly arcuate, compressed and feebly tapering, strongly,
closely sculptured laterally, finely and rather less closely on the upper sur-
face, which slopes slightly downward beyond the antenne, the latter at two-
fifths, the lateral sulci beyond them coarse and deep, the under surface but
feebly concave; prothorax as long as wide, the evenly converging sides
broadly, distinctly and evenly arcuate to the tubulation; surface very
evenly convex, the basal lobe transversely truncate, with a few moderate .
punctures; scutellum moderate, quadrate, feebly sinuato-truncate at tip;
elytra cuneate, distinctly longer than wide, with narrowly rounded tip and
broadly, evenly arcuate sides, the humeral prominences very broadly rounded
and feebly marked, barely a fourth wider than the prothorax; striation and
punctures as in the preceding; outer inferior tooth of the hind femora acutely
triangular, the external tibial tooth low, rather distant from the base;
abdominal plaque somewhat acutely concave, very densely punctate and
conspicuously setulose, smooth at base. Length 8.8 mm.; width 5.4 mm.
Brazil (Chapada). November. A single male............. sponsor n. sp.
Form oblong-rhomboidal, strongly convex, smooth though strongly alutaceous,
piceous-black above; beak in the female rather long, cylindric, about as long
as the prothorax, evenly arcuate, finely, loosely punctate, more coarsely at
the sides basally; antenne at two-fifths, the club very nearly as long as the
funicle; prothorax fully a fourth wider than long, of peculiar outline, the
sides feebly converging and slightly arcuate to apical third or fourth, there
apically rounding to the tubulation; surface very evenly convex; basal lobe
broad, feebly arcuate at apex, becoming sinuate medially, feebly impressed
but subimpunctate; scutellum rather large, quadrate, somewhat wider than
long, with rounded angles; elytra a fourth wider than the prothorax, slightly
elongate, cuneiform, with rather obtusely rounded apex, and with the sides
straight behind the large, rounded and somewhat prominent humeri; striz

44

18—

\

MEMOIRS ON THE COLEOPTERA

very fine and feeble, minutely, subobsoletely and remotely punctulate, the
sutural not differing from the others; outer inferior tooth of the hind femora
rather high but with somewhat blunt apex; abdominal plaque deeply im-
pressed, with angulate section, strongly and very densely punctate and
conspicuously setulose, the bottom being a narrow smoother gutter; base
broadly smooth. Length 8.5 mm.; width 5.6 mm. Brazil (one specimen
received from a European dealer and without further indication of locality).

convexicollis n. sp.
Base of the pronotum rather deeply impressed at each side of the basal
1s) 6) Renee ae eae a Ate Re ea ae RIES NC cb etnias aia. cth fod 19

Base not, or very feebly and obsoletely, impressed at each side of the lobe... ..20
19—Body broadly oval, with the humeri broadly rounded though slightly promi-

nent, black, the upper surface highly polished, piceous-black, the pronotum
rufo-piceous; beak short, three-fifths as long as the prothorax, thick and
straight, thinner and arcuate distally, compressed, closely punctate, more
finely above; antennz at the middle, the lateral sulci beyond broad and
deep; club thick, oval, nearly as long as the funicle; prothorax a fourth wider
than long, the sides evenly, strongly arcuate and converging from base to
tubulation; surface very evenly convex, highly polished and smooth; basal
lobe narrowly rounded at tip, with a few minute punctules; scutellum small,
smooth, flat and quadrate; elytra ovoidal, barely longer than wide, about a
fourth wider than the prothorax; strie very fine and subobsolete, minutely
and remotely punctate, the sutural gradually rather coarse and deep basally;
hind tibial tooth sharply angulate; feebly concave abdominal plaque finely,
sparsely punctate. Length 5.0 mm.; width 3.7 mm. Brazil (a single
female from a European dealer, labeled cardinitus, but not that species).
scutellinus n. sp.

Body smaller and narrower, one of the smallest of the genus, deep black and very

highly polished, the pronotum rather bright testaceous, except at apex;
beak rather slender, arcuate, nearly four-fifths as long as the prothorax,
evenly cylindric, shining and finely, sparsely punctate, the antenne sub-
medial, the club large, as long as the funicle; prothorax but little wider than
long, the sides rather strongly converging, broadly, subevenly arcuate from
base to tubulation; basal lobe nearly impunctate, narrowly truncate at tip;
scutellum wider than long, subquadrate, flat and finely punctate; elytra
ovoidal, not longer than wide, nearly a third wider than the prothorax, the
humeri broadly rounded though rather prominent, the converging sides
thence subevenly arcuate to the narrowly obtuse apex; striz very fine but
distinct, especially behind, the sutural rather coarse; punctures excessively
minute and subobsolete; basal abdominal plaque feebly concave, coarsely,
loosely punctate; hind tibial tooth fine and very sharp, aciculate at the
summit. Length 4.2 mm.; width 2.8 mm. Brazil (Rio de Janeiro). No-
vemberanA-single femalevs.sawsner a se eerie ia) eee teretirostris n. sp.

20—Front with a moderate perforate fovea at each side near the eye. Body

very small and rhombic-oval, highly polished and smooth, very convex,
deep black, the pronotum bright rufous except at tip; beak short and very
thick, slightly arcuate and tapering, two-thirds as long as the prothorax,
compressed, closely punctate, the punctures small, slight!y larger at the sides;
antenne submedial, the lateral gutters beyond them broad; club as usual;
prothorax barely wider than long, the strongly converging sides evenly and
moderately arcuate from base to tubulation; basal lobe short, rather abrupt,
the apex sinuate medially, no punctures visible except at tip of the lobe;
scutellum truncate, with rounded angles, slightly wider than long, perfectly
flat and smooth, the sides converging from near apex to the base; elytra
somewhat distinctly longer than wide, cuneiform, with feebly arcuate sides,

BRAZILIAN BARIN& 45

moderately narrow rounded apex and somewhat narrowly rounded promi-
nent humeri, between a fourth and fifth wider than the prothorax; strie
extremely fine and feeble, but with fine and distant though distinct punctures,
the sutural stria coarser though shallow; abdominal plaque strongly, rather
closely punctate, slightly concave; hind tibial tooth acute. Length 3.8
mm.; width 2.5 mm. Brazil (Santarem). A single specimen, apparently
HET all Stirs Soc pees Ramee ee ee eee) [is 0) Sa lonahicris atts aee-GakiS Secel ore planiscutis n. sp.
Hrontuwithout trace atm@oweatarcachisid@s.4.2: )-).is «41. io dis ee oe ie ie ae ee 21
21—Elytral striae rather coarse and deep suturally, less coarse and feeble but
somewhat closely and strongly punctate thence externally. Body rhombi-
form, highly polished, deep black, the pronotum bright rufous, black as
usual at apex; beak moderately thick and compressed, shining, feebly arcu-
ate, two-thirds as long as the prothorax, narrowed slightly at tip, strongly
and closely punctate; antenne submedial, as usual in structure; prothorax
but little wider than long, the sides strongly converging and evenly arcuate
from base to tubulation; surface evenly convex, with very minute remote
punctulation; basal lobe broadly sinuate at apex, with a few distinct punc-
tures there and thence along the base, which is feebly impressed near the lobe;
scutellum nearly flat, slightly wider than long, truncate, feebly trapezoidal,
with arcuate base; elytra not longer than wide, a fourth wider than the pro-
thorax, ogival, with narrowly rounded apex, the humeri rounded but rather
prominent; two lateral striz coarse and deeply excavated; abdominal
plaque subangularly impressed, finely and very sparsely punctate; mes-
epimera coarsely, sparsely punctate; middle and hind tibie acutely, acicu-
larly dentate near the base. Length 4.5 mm.; width 3.4 mm. Brazil
(Chapada). October. A single specimen—apparently female.
inzequalis n. sp.
Elytral stria extremely fine, often subobsolete, the sutural stria always a little
stronger and, in geniculatus and adulans, rather coarse; mes-epimera always
Mune panclenemorely punetUlates .c ays slows Wain «nists ee welm eee © bs els s 22
22—Body smaller and narrowly subrhombiform, shining, deep black, the pro-
notum rufous; beak closely, strongly punctate, more rugosely on the com-
pressed sides, feebly arcuate, nearly three-fourths as long as the prothorax,
the antenne as usual; prothorax a fifth wider than long, the sides converging
and very moderately arcuate, gradually more rounding anteriorly, the apical
tubulation nearly three-sevenths as wide as the base, the basal lobe rather
narrowly truncate, the distinct confused punctures extending also along the
unimpressed base; scutellum quadrate, scarcely as wide as long, sinuato-
truncate at apex; elytra evidently longer than wide, nearly a fourth wider
than the prothorax, cuneiform, with rounded apex, the oblique sides straight
medially, the humeri rounded though notably prominent; striz very fine
but evident, finely, remotely punctate; abdominal plaque deeply concave,
subangularly so behind, strongly and closely punctate, except at base; middle
and hind tibie acutely dentate externally near base. Length 5.5 mm.;
width 3.7 mm. Brazil (Chapada). November. A single male example.
merus nN. sp.
Body almost similar in form and size but with the beak more finely and closely,
and the front between the eyes more finely and sparsely, punctate; the punc-
tures of the basal thoracic lobe are not continuous as in merus, but are sharply
interrupted at the middle and, at each side of the middle, the punctures form
a short longitudinal line, which is not remotely suggested in merus; scutellum
differing in being wider, slightly wider than long, more parallel and with
truncate and not sinuate apex; punctures of the more nearly obsolete
elytral striae much more evident, very remote in the series. Length 5.7 mm.;
width 3.75 mm. Brazil (Chapada). October. A single male.
innocens n. sp.

46 MEMOIRS ON THE COLEOPTERA

Body notably broader, distinctly rhombiform and larger in size............. 23
23—Thoracic punctules on minute wart-like prominences. Form rhombic;
surface smooth, shining, deep black, the pronotum rufous; beak short, two-
thirds as long as the prothorax, rather thick, very feebly arcuate, compressed,
coarsely, densely sculptured, the punctures rather fine and close above;
head sparsely punctate, with a minute fovea midway between the eyes;
antennal club rather thin, almost as long as the funicle, very gradually and
finely pointed at apex; prothorax but slightly wider than long, the converg-
ing sides but little more arcuate anteriorly; basal lobe narrowly rounded,
with strong punctures, extending also along the base; scutellum quadrate,
nearly smooth, convex; elytra not longer than wide, ogival, with rounded
tip and prominent but broadly rounded humeri, nearly a fourth wider than
the prothorax; striae extremely fine and subobsolete, the punctures fine and
distant; abdominal plaque concave, acutely so behind, strongly, very densely
punctate and setulose; hind tibial tooth broad, but with sharp apex. Length
6.4 mm.; width 4.5 mm. Brazil (Chapada—campo). October. One male

EXAMPLE Lr se eevee anche tier a ee ae et Pe tes adulans n. sp.
Thoracic punctules extremely minute as usual and perfectly simple, the surface
SiMOOth eee ia AEN eo, SS Oe, aes eee ek se 24

Form moderately narrow, rhombic, smooth, deep black, the pronotum rufous;
beak (co) longer and more finely punctate, compressed and feebly arcuate,
rather more than two-thirds as long as the prothorax, the antennal club, less
narrow, more rapidly pointed, or (2) still longer, fully three-fourths as long
as the prothorax, somewhat more arcuate, a little less thick and more sparsely
punctate, especially toward apex, the frontal fovea larger; prothorax nearly
similar but with the sides relatively more arcuate anteriorly; basal lobe,
punctures and the scutellum almost similar; elytra distinctly more elongate,
more narrowly rounded at tip, cuneiform and with less arcuate sides, the
humeri nearly similar, a fourth (co) to fifth (@) wider than the prothorax;
strie rather fine but much more distinct and impressed, and with the small
distant punctures also very distinct; abdominal plaque more evenly concave,
less setulose and less densely punctate, absolutely similar in the sexes as
usual. Length 6.2-6.7 mm.; width 4.0-4.35 mm. Brazil (Chapada—
campo). October. Seven specimens.................-. luridicollis n. sp.
Form stouter, the size a little larger, rhombic, smooth, shining, deep black, with
more obscurely rufous pronotum; beak and antennz (co) nearly similar,
the flattened sides of the former more coarsely, densely and confusedly
punctate, or (@) quite different, relatively not so long and but very little
longer than in the male, though more arcuate and cylindric than in that sex,
the sculpture scarcely less dense; prothorax larger, more nearly as long as
wide, the sides more evenly arcuate from base to tubulation; basal lobe
similarly punctate, but with the apex not rounded but narrowly sinuate;
scutellum quadrate, feebly convex; elytra broader, but little longer than
wide, otherwise nearly similar, the striz and punctures also nearly similar,
except that the sutural stria is relatively coarser; abdominal plaque concave,
very densely punctate and setulose; hind tibial tooth more strongly elevated
and acute. Length 6.8-7.0 mm.; width 4.65-4.7 mm. Brazil (Chapada—
campo). October and November. Three specimens.....geniculatus n. sp.
25—Form rhombic-oval, very convex, highly polished, black, bright testaceous
on the inferior flanks and throughout above, excepting the black thoracic
apex and scutellum; beak thick, feebly arcuate, compressed, not quite
three-fourths as long as the prothorax, strongly, densely punctate at the sides,
finely and sparsely above, the head strongly and closely punctate throughout
and upon the latero-basal part of the beak; antennal club thick, oval, longer
than the funicle; prothorax more than-a fourth wider than long, the strongly

24

BRAZILIAN BARIN-E A7

converging sides evenly arcuate from base to tubulation; basal lobe short,
broadly and deeply sinuate, with confused punctures only along the sinus;
scutellum large, nearly smooth, convex, parabolic in form, with arcuate base;
elytra cuneiform, slightly elongate, with narrowly rounded apex and feebly
arcuate sides, a fourth wider than the prothorax, the humeri prominent and
not very broadly rounded; striz extremely fine and feeble, though with the
remote punctures very distinct though small, the sutural stria gradually
coarse and deeply excavated basally; hind tibial tooth low and obtuse but
sharp; abdominal plaque polished, with very sparse and moderate punctures
in the broad concavity; flanks of the body beneath impunctate and with
vitreous polish. Length5.7mm.; width3.8mm._ Brazil (Tijuca). _Novem-
ber. A single specimen—apparently male but without trace of outer inferior
boothroniphemnimelstemordya.ch .eas5).0.4 5 hc ecu sh sed. ol emarginatus n. sp.
Form subrhombic but more obtuse behind, polished, black, the inferior flanks
and the upper surface, excepting the elytral apex and thoracic tubulation,
pale testaceous, the scutellum also testaceous; beak two-thirds as long as
the prothorax, thick, very feebly arcuate, compressed, minutely, sparsely
punctate above, strongly, closely and rugulosely so at the sides, the antennal
club large, a third longer than the funicle; head strongly, rather closely
punctate, the frontal fovea distinct; prothorax but slightly wider than long,
the strongly converging sides broadly arcuate, a little more so anteriad;
basal lobe with a single line of punctures on the edge of a large deep sinus;
scutellum large, as wide as long, broadly and very obtusely parabolic, rounded
at base and very strongly elevated and evenly convex, nearly smooth;
elytra very obtusely parabolic, barely longer than wide, a fourth wider than
the prothorax, with moderate prominent rounded humeri; striae throughout
nearly as in the preceding, the punctures rather less widely separated; outer
inferior edge of the hind femora not at all dentate, the tibiz arcuate distally;
abdominal plaque deeply concave, shining, minutely and remotely punctulate.
Length 6.75 mm.; width 4.4 mm. Brazil (Rio de Janeiro). November.
Oiewexarmmleans cris. solters Pe siata rae Ne Wet bce ahs, bok. tumidiscutis n. sp.
26—Pronotum thrown up at the summit of the flanks into a pronounced node-
like prominence, the dorsal line joining which is transverse and feebly bi-
sinuate when viewed postero-obliquely. Rhombiform and highly polished;
beak rather thick and feebly arcuate, not three-fourths as long as the pro-
thorax, subcylindric, rugulosely punctate, minutely and loosely so distally;
antennal club shorter than the funicle; prothorax but little wider than long,
the strongly converging sides subevenly arcuate; basal lobe triangular, with a
few punctures, the apex narrowly sinuate and punctate; lateral impressions
deep; scutellum flat, quadrate, slightly transverse, finely, sparsely punctate;
elytra rapidly parabolic, barely longer than wide, a fourth wider than the
prothorax; striz obsolete, the sutural distinct basally; the rows of punctures
are, however, well marked though fine; hind tibial tooth very small, abrupt
and aciculate; legs very strongly punctate, the femora closely, the tibize
densely and rugosely so. Length 4.6 mm.; width 3.25 mm. Brazil (Cha-
pada—forest). November. A single female specimen... .bicuspidatus n. sp.

Pronotum subconical, very evenly convex...... 27]
27—Elytral strie obsolete, excepting the suareall the surface throughout very
SMOG tMnandsaretaly pO MSHE 15:50) as A Mebe ak ck Lok, atone easels we ohh 28
Elytral striz distinct, at least internally; surface always very polished and
smooth; basal thoracic lobe always distinctly sinuate.................. 30

28—Scutellum flat, quadrate, perfectly smooth, not distinctly punctate. Body
rather briefly rhomboidal; beak moderately thick, distinctly arcuate, nearly
three-fourths as long as the prothorax, compressed, closely and rather strongly
punctate at the sides, very minutely and sparsely on the upper surface,

48

MEMOIRS ON THE COLEOPTERA

except basally, where the fine sculpture is dense and strigilate and with a
distinct medial carina; head strongly but very sparsely punctate; lateral
grooves beyond the antenne very deep, conspicuous; antennal club shorter
than the funicle; prothorax a fourth wider than long, the sides very strongly
converging and distinctly and evenly arcuate from the base; basal lobe
feebly, sparsely punctulate, obtusely rounded at tip, the lateral impressions
small and feeble; elytra but slightly elongate, hardly a fourth wider than the
prothorax, ogival, with narrowly obtuse apex, the humeri prominent and
somewhat narrowly rounded; punctures of the fine subobsolete strize very
minute, remote and feeble; legs with the punctures strong but separated,
the tooth of the hind tibiz small, abrupt, broadly triangular; abdominal
plaque feebly, subacutely impressed, moderately and sparsely punctate.
Length 4.0 mm.; width 2.8 mm. Brazil (Rio de Janeiro). November. A
single malespecimen;. Joa bbls Aono ele est ania eeaee subrhombicus n. sp.

Scutellum flat, strongly, evenly and closely punctate....................... 29
29—Body in outline as in the preceding, but rather less abbreviated; beak not

very thick, feebly and evenly arcuate, short, three-fifths as long as the pro-
thorax, shining, subcylindric, the sides slightly flattened and loosely, moder-
ately punctate, the upper surface and head even and eatremely minutely,
sparsely and almost invisibly punctulate; antennze medial, the club distinctly
shorter than the funicle, the grooves beyond the point of insertion rather short
but deep; prothorax as in the preceding but only very slightly wider than
long, the basal lobe similar though a little more obtuse, truncate; scutellum
quadrate, slightly wider than long; elytra nearly as in the preceding but
not quite so wide, a few of the discal striz visible and elongate-subfoveiform
at base—as usual throughout the genus; abdominal plaque nearly flat,
strongly, sparsely punctate; outer tibial tooth large, triangular, very acute
at tip. Length 4.2 mm.; width3.0mm. Brazil (Santarem). One example.

inconspicuus n. sp.

Body a little larger and more obtuse behind, rhombic-ovoidal; beak nearly similar

but somewhat longer, less cylindric, the flattened sides more coarsely and
densely punctato-rugose, differing very much on the upper surface, which is
very densely, longitudinally and finely punctato-strigilate but not at all
carinulate, becoming extremely minutely and sparsely punctulate distally;
head very finely, sparsely punctate; antennal club distinctly shorter than the
funicle; prothorax as in the preceding but still more nearly as long as wide, :
with still more obtuse and more punctate basal lobe; scutellum evenly
quadrate; elytra oval, very much more broadly obtuse at apex and with
still rather more arcuate sides and similar humeri, barely longer than wide, a
fifth wider than the prothorax; strize similarly very fine and obsolescent
though somewhat impressed, so that they are more evident by laterally
oblique illumination, the punctures extremely minute; hind tibial tooth
small, broadly triangular; femora finely, sparsely punctate, the tibie rather
coarsely and loosely but irregularly so; abdominal plaque moderately and
sparsely punctate, almost flat, the nearly flat concavity having two feeble
subbasal convexities. Length 4.5 mm.; width 3.4 mm. Brazil (Tijuca).

November. , A single examples: /.,.cecaaadselqas nan eee punctiscutis n. sp.
30—Elytral striz groove-like only toward the suture..................2005- 31
Elytral striae deeply grooved everywhere, except on the flanks.............. 37

31—Antennal club relatively less stout, elongate-oval and fully as long as the

funicle. Body subrhomboid-oval, polished throughout; beak three-fourths
as long as the prothorax, rather thick, subcylindric, slightly flattened at the
sides and very feebly arcuate, strongly but not very densely punctate laterad,
minutely, sparsely punctate dorsally, the head sparsely punctate; prothorax
but little wider than long, the converging sides evenly and rather strongly

BRAZILIAN BARIN 49

arcuate to the tubulation; basal lobe with scattered punctures, the lateral
impressions small but deep; scutellum subquadrate, well developed, nearly
flat and even, distinctly wider than long and with the minute punctures
rather numerous; elytra somewhat obtusely oval, not longer than wide,
a fourth wider than the prothorax and less than one-half longer, the moder-
ately prominent humeri evenly rounded; strize very fine and minutely,
remotely punctulate, the sutural and two marginal deep, the ninth, especially,
broad and catenulate; abdominal plaque sparsely punctate, abruptly and
deeply impressed at the middle toward apex; hind tibial tooth large, very
aciculate at apex. Length 4.5 mm.; width 3.2 mm. Brazil (Chapada—
forest). November. One specimen—apparently female...aterrimus n. sp.
Antennal club very stout, always at least obviously shorter than the funicle. . .32
32—Upper surface polished but with alutaceous pronotum.................. 33
Upper surface very highly polished throughout.....................-.005. 34
33—Body larger, rhomboidal; beak cylindric, very feebly arcuate, only three-
fifths as long as the prothorax, the sides only feebly flattened basally and
deeply and loosely, but not very coarsely, punctate, very finely and sparsely
so anteriorly and throughout above; head sparsely punctate; prothorax a
a fourth wider than long, the sides only moderately converging and broadly
arcuate, rapidly more rounding anteriorly to the abrupt tubulation; surface
with the minute and sparse punctulation unusually evident, the lobe broadly,
deeply sinuate, and with some coarser punctures, the lateral impressions
shallow; median line flat, but abruptly and narrowly impunctate; scutellum
rather large, quadrate, somewhat wider than long, rounded at base, the
punctulation minute and sparse; elytra slightly elongate, between a fourth
and fifth wider than the prothorax, briefly cuneate, obtusely rounded at
apex, the rounded humeri rather prominent; striz very fine and subobsolete,
but with the punctures unusually strong, the sutural deep, the second less so,
the ninth very coarsely excavated, except near base, the tenth also rather
coarse; sparse punctulation of the intervals rather evident; abdominal
plaque somewhat strongly but sparsely punctate, nearly flat, transversely
impressed at base and medially toward apex; tibial tooth large, with very
aciculate apex. Length 5.8 mm.; width 4.3 mm. Brazil (Chapada).
November aOnerspecinien® 0s issn Vee eee esos eae oe anthrax n. sp.
Body not so large; beak not two-thirds as long as the prothorax, not quite so
cylindric, a little more flattened and rugosely punctate at the sides basally,
the grooves beyond the antenne deep and distinct; punctures above sparse
and minute apically, rather strong and still sparser basally; prothorax a
fourth wider than long, the sides strongly converging, distinctly and sub-
evenly arcuate from base to tubulation; surface nearly as in the preceding
but with much more narrowly sinuate basal lobe; median line finely, very
faintly subcarinulate; scutellum relatively still larger, somewhat transversely
subquadrate, rounded at base and with distinct and numerous punctules;
elytra not quite as long as wide, in outline and general relationship almost as
in the preceding, but with the sides more arcuate; striation nearly similar,
the ninth stria not quite so coarse, the distant punctures more minute and
much less conspicuous; abdominal plaque nearly similar, but with the punc-
tures still more minute and remote; hind tibiz less broad, the tooth smaller;
at the sides of the pronotum the punctures become rather strong and con-
spicuous, though sparse, in a way not noticeable in anthrax. Length 4.7
MIME WAG taNetowminess brazil (Chapada)iassecs.- 4. ae curtipennis n. sp.
34—Mes-epimera with coarse and conspicuous but rather sparse punctures. . .35
Mes-epimera with the punctures moderate in size and very sparse though dis-
[SHAY GUE oy ol Sic vere dv nad SACP RUSRE AICI SBS CREPE EEE abe aig mececii el ies ancient eid a eo 36
35—Lateral pronotal edges without much more obvious punctures; beak much

T. L. Casey, Mem. Col. X, Aug. 1922.

50

MEMOIRS ON THE COLEOPTERA

larger than in any of the preceding of this section, almost as long as the pro-
thorax, subcylindric, rather thick, only feebly arcuate, very finely, sparsely
punctate, more strongly at the sides basally, having, at each side of the upper
surface for a short distance beyond the middle, a feeble disconnected longi-
tudinal groove; head sparsely punctate; prothorax but little wider than
long, the converging sides very moderately arcuate, a little more so near the
tubulation; basal lobe with a few coarse punctures, the sinus narrow and
deep; scutellum subquadrate, very feebly convex, a little wider than long
and with rounded base, not however exactly fitting the adjacent sinus, which
is narrower; elytra regularly ovoidal, not longer than wide, a fourth wider
than the prothorax, the prominent humeri rounded; sides broadly arcuate;
strie extremely fine, with very small and remote punctures, the three toward
the suture coarser, gradually deeper, the two lateral very coarse, especially
the exarate ninth; abdominal plaque nearly flat, very finely, remotely
punctate; tibiae as usual. Length 5.5 mm.; width 4.0 mm. Colombia.
QOne.Sprermenss 3G ola ite gee a),, ok alee SIS ne he, arenes morio n. sp.

Lateral pronotal edges with stronger and distinct punctures in a narrow area as in

curtipennis; beak rather thick, very feebly arcuate, three-fourths as long as
the prothorax, flattened and somewhat strongly, closely punctured at the
sides basally, elsewhere minutely and sparsely so; head strongly but not
densely punctate; prothorax only a fifth or sixth wider than long, the con-
verging sides very feebly arcuate, gradually very little more so anteriorly;
basal lobe with a few coarser punctures, the sinus rather shallow; scutellum
very feebly trapezoidal, arcuate at base, moderate in size; elytra scarcely a
fifth wider than the prothorax, slightly longer than wide, ogival, with rounded
apex, the prominent humeri not very broadly rounded; striz as in the pre-
ceding, except that the discal ones are not so fine and are impressed, the
remote punctures distinct; abdominal plaque nearly flat, smooth at base,
finely, sparsely punctate thence to the apex, except that at the base of the
punctured part—along the distal margin of the smooth base—there is a
single line of notably coarse punctures; tibize as usual. Length 4.4 mm.;
width 3.0 mm. Brazil (Chapada). September. One example.

ebeninus n. sp.

36—Body rhombic-oval in outline; beak (2) subcylindric and nearly as in the

preceding, or (o*) much shorter, barely three-fifths as long as the prothorax,
thicker, more tapering, more feebly arcuate, compressed and coarsely, densely
sculptured at the sides, the grooves before the antenne much larger and more
conspicuous; prothorax evidently wider than long, the converging sides
feebly arcuate, a little more so anteriorly; basal lobe with some coarse punc-
tures, the lateral impressions distinct; extreme pronotal sides with the minute
punctulation somewhat stronger than medially; scutellum subquadrate,
minutely punctulate; elytra not quite as long as wide, parabolic, the humeral
prominences rounded as usual; striz extremely fine and minutely punctate,
the sutural deep, the second rather fine and shallower, the third nearly like
the discal, the ninth not so coarsely exarate as in the few preceding species;
abdominal plaque flat, the sparsely punctate surface bordered anteriorly by a
transverse line of coarser punctures; tibial tooth low but with the apex
finely acute and oblique. Length 4.7-5.5 mm.; width 3.65-4.0 mm. Brazil
(Chapada—campo). October and November. Six specimens.

uniseriatus n. sp.

Body smaller and more narrowly rhombic-oval; beak in the female shorter, only

about three-fifths as long as the prothorax, subcylindric, only very slightly
arcuate, minutely and sparsely punctate and shining, more strongly punctate
at the sides basally, the furrows beyond the antenne fine; prothorax but litte
wider than long, the strongly converging sides evenly and distinctly arcuatel ;

BRAZILIAN BARIN 51

punctulation not more noticeable at the sides; sinuate basal lobe with a few
coarse punctures; scutellum quadrate, a little wider than long, minutely and
sparsely punctulate; elytra very slightly elongate, parabolic, with very feebly
arcuate sides and rapidly rounding apex, the humeri as in the preceding, a
fourth wider than the prothorax; striation and minute punctures nearly as
in the preceding; tibial tooth rather high and acute. Length 3.8 mm.;
width 2.8 mm. Brazil (Chapada—campo). November. One specimen.
frugalis n. sp.
37—Form rhombic, very convex and polished throughout; beak (<) three-fifths
as long as the prothorax, rather thick, feebly arcuate, compressed, strongly,
densely punctate, a little less so above, the grooves beyond the antenne
wide, deep and conspicuous, or (@) three-fourths as long as the prothorax,
more cylindric, almost as strongly sculptured and with the grooves nearly
similar, but not extending quite so close to the tip; antennal club thick, oval,
pointed, not quite as long as the funicle; prothorax a fifth or sixth wider than
long, the converging sides subevenly arcuate; basal lobe sparsely punctate,
rather widely and deeply sinuate, feebly and angularly impressed, the lateral
impressions distinct; scutellum large, as wide as long, rather rounded, arcuate
at base, coarsely punctate and rugose and nearly flat (9), or smoother, with
the median part abruptly and strongly elevated (o); elytra barely as long
as wide, fully a fifth wider than the prothorax, ogival, with narrowly obtuse
apex and rather prominent rounded humeri; grooves not very coarse but
deep, abrupt and impunctate, becoming fine, feeble and remotely punctulate
striz on the flanks, the ninth stria not so coarsely exarate as in the preceding
group and the tenth very moderate, impunctate; abdominal plaque broadly
and acutely impressed, sparsely but strongly punctate; hind tibial tooth
sharp. Length 4.5-4.8 mm.; width 3.3-3.5 mm. Brazil (Chapada).
March and November. Three specimens................... nigritus n. sp.
Form and general characters very nearly similar but somewhat narrower, the beak
(2) nearly similar, the antennal club still thicker, more obtuse at apex;
prothorax almost similar, the basal lobe unimpressed; scutellum large, sub-
quadrate, slightly wider than long, rounded at base, its surface nearly flat,
even and very finely, rather closely punctulate; elytra almost similar; basal
abdominal plaque also differing greatly, strongly, rather closely punctate,
deeply, transversely impressed and smooth at base, the rest of its surface
transversely tumid, with a small smooth semicircular impression in the middle
of its posterior slope; hind tibial tooth high, with finely aciculate apex.
Length 4.3 mm.; width 3.15 mm. Brazil (Chapada). <A single female,
withinowupehemmtrachedidatar if.) leis chiles S Talal ithe ls « ah) ews basalis n. sp.
38—Body obtusely and broadly subrhombic-oval, deep black, polished through-
out, the pronotum rufous; beak rather stout and thick, feebly tapering,
slightly arcuate, compressed at the sides and not quite two-thirds as long as
the prothorax; sides strongly but loosely, evenly punctate basally, finely and
densely so anteriorly and on the upper surface, the anterior lateral channels
long, broad, moderately deep; antennal club very distinctly shorter than the
funicle, which is piceous as usual; prothorax a fourth wider than long, the
sides slightly arcuate and parallel basally, gradually more rounding and very
’ converging anteriorly; surface polished, the infinitesimal punctules very
sparse and indistinct, the basal lobe with transverse impression, truncate,
closely punctate, the lateral impressions wholly obsolete; scutellum parallel,
wider than long, deeply and broadly sinuate at apex and finely, closely punc-
tate; elytra barely longer than wide and scarcely a fifth wider than the pro-
thorax, ogival, with narrowly rounded apex and large prominent rounded
humeri; surface of each very tumid externally near apex, giving an obtuse
posterior aspect on vertical view; broad grooves finely punctate along the

52 MEMOIRS ON THE COLEOPTERA

bottom, the ninth and tenth rather close and very coarse, more separated in
basal third; abdominal plaque broadly and evenly concave, strongly and
closely punctate; hind tibie densely gilvo-ciliate within distally in the male,
the external tooth very broad, low and rather obtuse. Length 9.4 mm.;
width 6.6 mm. Brazil (Chapada). November. A single male.
caviventris n. sp.
Body somewhat as in the preceding but much smaller and narrower, and with the
black polished elytra rufescent toward the humeri, the pronotum rufous;
beak nearly similar throughout but somewhat shorter, the antennal club
longer, relatively more slender and almost as long as the funicle; prothorax
smaller, barely a fifth wider than long, the sides more arcuate and more con-
verging from the base, but becoming similarly more rounded anteriorly;
basal lobe similar; scutellum smaller, wider than long and similarly punctate,
but more convex, the deeply sinuate apex defined by the oblique and pointed
divaricate apical angles in a manner quite different from that of caviventris;
elytra similar but narrower and with the subapical prominences less con-
spicuous, the coarse ninth and tenth striz posteriad still more approximate;
evenly concave basal abdominal plaque with equally coarse but more sepa-
rated punctures; hind tibiz similarly ciliate within but only near the apex, the
external tooth a little higher and sharper. Length 7.8 mm.; width 5.5 mm.
Brazil (Chapada). One male example................. sinuatiscutis n. sp.
Body slightly more abbreviated than in the two preceding, shining, deep black, the
elytra toward the sides and the pronotum very obscure rufous; beak similar
in size, thickness and feeble taper, but rather more cylindric in the male,
the less flattened sides coarsely, confluently punctate; anteriorly and above
there are small close punctures, less dense behind than before the middle as
in the preceding; head sparsely punctate; antennal club subequal to the
funicle; prothorax a fourth wider than long, the sides from base to tubulation
more convergent and more evenly arcuate than in either of the preceding;
basal lobe similar but less strongly punctate; scutellum scarcely as wide as
long, the surface nearly smooth, the sides and apex somewhat sinuate; elytra
not longer than wide, a fourth wider than the prothorax, more obtuse and
parabolic, the subapical elevations prominent though similarly obtuse;
humeri moderately prominent; lateral grooves becoming much shallower,
excepting the deeply exarate ninth and tenth; evenly concave abdominal
plaque with the coarse punctures close posteriorly, sparse basally; meta-
sternum with a large and deep, smooth impression; hind tibia in the male
with a small cluster of longer yellow hairs within near the apex, the external
tooth small. Length 8.6 mm.; width 6.0 mm. Brazil (Santarem). One
IMATE FS PECIITIE TIAA ch SN Haes a Ee a ee striatus n. sp.

Angulicollis Boh., seems to be a species allied to truncaticollis,
but I am unable to identify it satisfactorily with the material at
hand. The prothorax in this, as well as umbonaticollis, distinguendus
and several others of that section, is more or less trapezoidal in form
when viewed postero-obliquely. The small feeble verruciform
elevations carrying the extremely minute punctules in such forms
as verrucicollis and trapezicollis, are a peculiar feature, the con-
stancy of which may or may not be pronounced. The male is
generally distinguishable from the female in this genus by the
slightly shorter and less arcuate, more tapering, more compressed
and more sculptured beak, and, in addition to this, in one large
section containing such species as uwmbonaticollis and porcinus, the

BRAZILIAN BARINAE 53

hind femora in this sex are dentate externally beneath beyond the
middle; in many sections, however, such as the small black polished
forms of section 26, as well as the deeply exarate caviventris section,
this feature becomes completely obsolete. In a manner strangely
different from the Barini and most Centrinini, basal abdominal
characters as a source of sex discrimination are unknown, the
abdomen, though greatly modified at base, is altogether similar in
the sexes, so far as I can determine.

Eulophodes n. gen.

The only species of this genus known to me at present is the
following:

Eulophodes tumifer n. sp. —Broadly and strongly rhombic in form, very smooth,
polished and obscure subzneous in color, the legs deep black; surface completely
glabrous; beak in the type not four-fifths as long as the prothorax, thick, sub-
compressed, distinctly and closely punctate throughout, more finely above, feebly
strigose at base toward the eyes; antennz a little behind the middle; head with
rather small but deep discrete punctuation; prothorax about as long as wide,
the converging sides straight, broadly rounding anteriorly to the apical sinuses,
the truncate apex two-fifths as wide as the base; surface polished and impunctate;
basal lobe prominent and strongly rounded; median line at base abruptly ele-
vated and compressed, the elevation by lateral view only three-fourths as high as
the thickness of the beak, with its summit irregular, rapidly sloping posteriorly,
not in the least spiniform; elytra slightly longer than wide and triangular, with
arcuate sides and obtusely rounded apex, nearly a third wider than the prothorax
and three-fourths longer, the rounded humeri very prominent; striz very fine,
feeble and subobsolete, but with the small remote punctures distinct; intervals
polished and wholly impunctate; basal abdominal segment in the type sub-
prominently convex and finely, sparsely punctate, moderately impressed medially
at base. Length 6.8 mm.; width 4.8 mm. Brazil (Rio de Janeiro). One
specimen, of undetermined sex.

This species differs from monoceros Boh., in the more punctate
beak, longer prothorax, with much smaller, feebler and wholly non-
spiniform basal elevation, obscure zneous and not dark cyaneous
polished lustre of the body and smoother strial interspaces. The
tarsal claws are rather small, feebly arcuate, parallel and are closely
contiguous, and perhaps to some extent, connate, at base.

Idiopsida n. gen.

The few known species of this genus so closely resemble Diory-
merus to external view, that they are probably always mingled
with the latter in collections, but, although habitally so similar,
the radically different mandibles, antennal club, abdominal base,
femora and tibiz, will serve to identify them whenever any one of
these characters happens to be observed. There are in my collec-
tion five species as follows:

54 MEMOIRS ON THE COLEOPTERA

Body larger in size, subrhombic-oval inform. 4)5 2)... lee 2 eee ee 2
Body notably smaller, rather more definitely rhomboidal....................
2—Color black, the pronotum obscure rufous, shining; beak very thick, cylindric,
feebly arcuate, nearly four-fifths as long as the prothorax, coarsely, con-
fluently punctate, strongly but less densely so above; antenne submedial,
the club scarcely longer than the three preceding joints combined, finely,
very sparsely punctate, more strongly and less sparsely toward base; pro-
thorax a fourth wider than long, the sides strongly arcuate, becoming parallel
basally, the apical tubulation nearly three-sevenths as wide as the base;
surface evenly convex, smooth; basal lobe obtusely rounded and moderately
punctate, the edge with some short pale sete; lateral impressions small but
evident; scutellum smooth and parallel, truncate and strongly transverse;
elytra barely longer than wide, nearly a fourth wider than the prothorax,
oval, with moderately prominent rounded humeri; strie very fine and feeble,
with distant fine punctures, the sutural entirely sulciform, two and three less
coarsely so and only toward apex, the ninth and tenth deeply and coarsely
suleate; abdomen feebly, longitudinally impressed and sparsely punctate
and setulose medially at base; flanks of the under surface minutely, sparsely
punctate. Length 7.2-7.3 mm.; width 4.75-4.8 mm. Brazil (Chapada—
campo). December. Two specimens................... plenicollis n. sp.
Color and lustre similar, the form more abbreviated and more oblong-oval; beak
perfectly cylindric, feebly arcuate, very coarsely, rather irregularly punctured,
less coarsely and more sparsely so above, as long as the prothorax (9),
or scarcely three-fourths as long (<”), though otherwise similar, the antennal
club barely as long as the three preceding joints; prothorax shorter, fully a
third wider than long, otherwise nearly similar, the obtuse punctate basal
lobe impressed medially toward apex; lateral impressions very diffuse and
feeble; scutellum similar but less abbreviated, smooth; elytra barely as long
as wide, a fifth wider than the prothorax, broadly and obtusely oval, with a
feeble subapical convexity as in the preceding, the humeri moderately promi-
nent; striation nearly as in the preceding; abdominal base still more feebly
impressed, having small sparse punctures and short glistening sete. Length
6.3-6.9 mm.; width 4.35-5.0 mm. Brazil (Chapada—campo). October
and November,” Seven specimens nis aa keeles eee rea brevior n. sp.
3—Body obtusely rhombic-oval, feebly alutaceous, black, the elytra obscure, the
pronotum bright, rufous, the latter feebly alutaceous; beak less thick, dis-
tinctly arcuate, cylindric and about as long as the prothorax, coarsely punc-
tured, more closely at the sides; prothorax between a third and fourth wider
than long, formed as in the two preceding; basal lobe obtusely rounded,
with rather numerous punctures, fine apical sete and feeble apical impression,
the lateral impressions at the basal edge feeble; scutellum smooth, trans-
verse; elytra scarcely as long as wide, obtusely oval, with the rounded hu-
meral projections rather prominent, the edge behind them feebly sinuate,
between a fourth and fifth wider than the prothorax; striz fine but distinct,
rather distantly and finely but very distinctly punctate, the sutural, the
second apically and basally and the ninth and tenth grooved, the two latter
more coarsely, the tenth not attaining the base; punctures of the feebly
impressed base of the abdomen rather strong but sparse, the setz distinct.
Length 5.3 mm.; width 3.8 mm. Brazil (Chapada). November. One
SPECIINIE My inc ccs vee ye REL clic ions SATO Loe eaR eRe Sea ren rufopicea n. sp.
Body nearly similar but somewhat more elongate; elytra deep black and polished,
the pronotum bright rufous; beak almost similar but a little shorter and
thicker, the sex of the type apparently female as in the preceding; prothorax
slightly less abbreviated, the tubulation and head broader than in rufopicea,
barely a fourth wider than long, the rounded sides less rapidly becoming

BRAZILIAN BARIN 55

subparallel posteriorly, the surface with the sparse infinitesimal punctules
becoming gradually stronger medio-basally, the lobe and lateral impressions
almost similar; scutellum transversely quadrate, feebly convex, perfectly
smooth and polished; elytra nearly similar in form and striation, but more
narrowly rounded at apex; abdomen somewhat more closely punctured
throughout, the basal segment almost similar. Length 5.8 mm.; width 3.9
mm. Brazil (Chapada). November. One example......... integra n. sp.
Body subsimilar but narrower than in either of the preceding, the elytra deep
black, polished, with a very feeble small oblique rufescent streak at each side
of the scutellum’; pronotum bright red, feebly alutaceous, the tubulation
and head as in rufopicea, much narrower than in integra: beak in the female
as in the former; prothorax somewhat smaller, a little more than a fourth
wider than long, the sides nearly as in the preceding, more regularly converg-
ing and-arcuate than in rufopicea, though notably more converging anteriorly
than from base to about the middle; basal lobe in punctuation and fine
apical sete, as well as feeble lateral impressions, nearly as in the latter;
scutellum similar; elytra nearly similar in striation but longer, a little longer
than wide and more narrowly rounded at tip; abdomen almost similar.
Length 5.6 mm.; width 3.7 mm. Brazil (Chapada). November. One
SPeClinen severe ee ree cae Ae aE SD, CMTE yen striatella n. sp.

These forms are from the same region and bear a striking inter-
resemblance, but appear to be different taxonomically. The second
specimen of plenicollis has the scutellum a little smaller than in the
type and feebly, lunately impressed along the hind margin, in a
way not suggested in the type, but all the other features are so
similar that this may prove to be a simple abnormality.

Crepantis n. gen.

The very small species forming the type of this genus differs
greatly in general habitus from any other considered, thus far,
though resembling somewhat a few of the small forms of Hiotus;
the tarsal claws, however, are not free as in the latter genus but are
straight and connate at base, as in all the preceding genera. The
body is narrower and much more evenly oval in outline, and the
short stout beak is separated from the head by a deep transverse
sulcus. The second species here added agrees in all features, except
the distally tapering beak, wholly polished prothorax and unarmed
tibie. The two species, of which the first is the type, may be
described as follows:

Body evenly oval, glabrous, not quite so strongly convex as in Diorymerus, pale
testaceous in color throughout, the legs but little darker, the head and beak
black, the pronotal tubulation short, not darker in color; beak thick, feebly
arcuate, as long as the prothorax, compressed, subopaque and strongly punc-
tured at the sides, finely and more sparsely above; antennal club large, thick,
ova! and as long as the funicle; prothorax short, two-fifths wider than long,
the sides converging and subevenly arcuate from base to tubulation; surface
with deep and sparse punctures, less coarse medially than at the sides, the
apex smoother; basal lobe small and feeble, narrowly rounded at tip; scutel-

56 MEMOIRS ON THE COLEOPTERA

lum very small, narrow, canaliculate from base to apex; elytra distinctly
longer than wide, about twice as long as the prothorax and a fifth or sixth
wider, evenly oval, the humeri but slightly swollen and not laterally promi-
nent; striz rather coarse, deep and sulciform throughout, finely punctate
along the bottom; intervals flat, with single loose series of punctures, so
infinitesimal as to be discovered with difficulty; under surface, except the
nearly smooth abdomen, coarsely and closely punctate throughout, the legs
short, closely punctate, the tarsi loosely received within the outer sulcus of
the tibie; first abdominal suture extremely fine, the other three coarse,
finer and reflexed at the sides. Length 2.0 mm.; width 1.2 mm. Brazil
Gantarem) a Onetspecimenss). nee ecisee oe eee angustipes n. sp.
Body ovoidal; surface deep black, highly polished, the beak rufous distally, as
long as the head and prothorax, stout and arcuate basally, straighter, nar-
rower and smoother in about distal half, separated from the head by a dis-
tinct impression; punctures very minute and sparse, stronger at the sides
basally; antenne at two-fifths, the basal funicular joint long and thick, the
club nearly as in the preceding species, large, though shorter than the funicle,
oval, densely pubescent, with distinct sutures, the four segments equal in
length among themselves; prothorax very highly polished and completely
impunctate throughout above and beneath, a third wider than long, the sides
feebly converging and slightly arcuate, gradually more rounding and con-
verging anteriorly to the tubulation, which is fully half as wide as the base,
the basal lobe moderate, narrowly truncate, smooth, unimpressed; scutellum
small, quadrate, smooth, feebly concave; elytra fully a fourth longer than
wide, barely a fifth wider than the prothorax, very evenly and narrowly para-
bolic, without subapical convexities, the humeri broadly rounded, not promi-
nent; grooves coarse, deep and very abrupt, impunctate, the intervals flat
and smooth; abdomen even, rather strongly but not very closely punctate
throughout; tibiz slender, rounded externally toward base, not at all dentate;
tarsi rather slender, the claws straight, well developed, connate at base.

Length 2.25 mm.; width 1.2 mm. Brazil (Santarem). One specimen.
subovalis n. sp.

There is no way to determine the sex of these unique types, but
it is probably male in angustipes and female in subovalis. In the
former the tibize externally at base are oblique and sharply, rather
prominently angulate; subovalis has very much the external facies
of the genus Prodinus.

Matrilia n. gen.

Another very isolated small species here begins a series of Diory-
merid genera differing from those thus far considered in having
the tarsal claws slender, arcuate and free; they are well developed
in the present genus, but become very small in some others. The
anterior coxee are separated by a third to nearly half their width,
closer in the male, and the excavation before them is well defined
but only moderately deep. The body is very small, convex,
glabrous and pallid, the abdomen apparently simple at base, the
tibiz straight, oblique and externally subdentate at base, and the
third tarsal joint is well dilated. The scutellum is peculiar, very
small, rather narrower than long, canaliculate, with flaring cuspidi-
form apical angles and, at the middle of each side, having an

BRAZILIAN BARINA 57

elongate-oval fovea. The most remarkable feature of the genus
resides, however, in the rostrum, which differs very much in the
sexes; in the male it is rather thick, feebly arcuate, slightly com-
pressed, not modified distally and strongly sculptured, but in the
female it is almost similarly stout and sculptured basally behind
the antenne, but thence to the apex becomes strongly flattened
and smooth, equally wide dorsally but very slender in profile; the
antenne are well behind the middle in the male but rather behind
basal third in the female, moderate in length, with small, subglobular
and rather shining club in both sexes, having the sutures distinct;
the basal joint of the funicle is as long as the next two or three.
The mandibles, also, are very peculiar, being subquadrate, coming
together on a short straight line, the inner part of their apices
slightly prolonged. The type may be described as follows:

Matrilia diversirostris n. sp—Form suboval, pale testaceous throughout, the
legs piceous-black; beak (Q) not quite as long as the prothorax, rather strongly,
evenly arcuate, or (o’) about three-fourths as long, thicker and less arcuate;
prothorax a fifth wider than long, the sides rather feebly converging and scarcely
arcuate, rapidly rounding anteriorly to the pronounced tubulation, which is
not quite half as wide as the base; surface even, having only the sparse infini-
tesimal punctules of most of the Diorymeri; basal lobe moderate, rounded, feebly
punctulate; scutellum as described above; elytra elongate-parabolic, a fourth
wider and two-thirds longer than the prothorax, the subapical elevations pro-
nounced, giving an obtuse posterior aspect when viewed antero-obliquely; humeri
moderate, though rather prominently rounded; striz somewhat coarse, deep and
grooved throughout; intervals flat, smooth; under surface moderately and not
densely punctate, the abdomen sparsely and finely, the mes-epimera coarsely and
closely, but not deeply. Length 2.2-2.35 mm.; width 1.2-1.3 mm. Brazil
(Chapada—forest). October. Two specimens.

While undoubtedly one of the Diorymerini, this species is alto-
gether exceptional in rostral and mandibular characters.

Prodinus n. gen.

In this genus, as represented by the typical species, the anterior
coxe are separated by about two-thirds of their width, the channel
before them differing from anything observable in the preceding
genera, in being shallow, concave, not abruptly limited at the sides
and far narrower than the beak; the mandibles are rather long,
overlap moderately when closed, with an acutely ogival combined
outline, and are strongly bifid at apex, being of the usual type in
this tribe. The antenne are medial, the first funicular joint as
long as the next three, and the club small, oval and pointed, about
half as long as the funicle. The body is oval, with strongly tubulate
prothorax, rather small scutellum and grooved elytra, and the first
abdominal segment is swollen somewhat as in Hiotus. The tibic
are acutely toothed externally at base, the third tarsal joint well

58 MEMOIRS ON THE COLEOPTERA

dilated and the claws not very small. In surveying the nine species
which I have assigned to the genus, there are of course some
modifications of these characters, which will be noted; the mandi-
bles in obtusus, for instance, are smaller, more decussate and with
obtuse outline when closed, and the abdomen is flat at base. The
beak is usually rather short, evidently arcuate and sometimes
moderately thick; the body is generally wholly glabrous, but in
setulosus has sparse erect pale sete throughout.
The species may be described as follows:

Upper surface glabrous... ile auch sanci gpg oifalanGl & fu Gpete ebaunss Rae ca AaUe ge ethes ce eek ene per ae
Upper surface sparsely setulose. Lis AEE mati a aakeMled Ue sto erel «ts els Aas aaah Cae Seon weer Re 9
2—Elytral grooves coarse and deep; beak thick...........0.05 005s 00-.0e ee: 3
Elytrallierooves manro were s/s S/he Gees ee eee eee SIs 6 ci aicla ae beltes nLaaeee nee ane 8
3—blytralssroovesimpunctate) on virtualliyssOnge eile) et eee eel 4

Elytral grooves conspicuously punctate along the bottom. . 27
4—Body subquadrate-oval, the prothorax broader, the elytra pheneees onnee
hehind when viewed antero-obliquely, the subapical prominences distinct. . .5
Body more oval or subrhombiform, the prothorax relatively not so wide, the
elytra behind not so abruptly subtruncate on the disk................... 6
5—Form oblong-suboval, highly polished, black, the legs piceous; pronotum and
head obscure piceo-rufous; beak moderately stout and strongly arcuate,
straighter and slightly less stout distally, about as long as the prothorax,
strongly and closely sculptured at the sides, finely, sparsely punctulate above;
prothorax more than a fourth wider than long, the sides just visibly con-
verging and very feebly arcuate, rapidly rounding in apical third to the abrupt
tubulation, which is three-sevenths as wide as the base; surface impunctate,
abruptly having some distinct punctures only along the lateral edges; basal
lobe small, narrowly truncate, smooth, the lateral impressions very diffuse
and feeble; scutellum quadrate, nearly flat, smooth; elytra a sixth longer
than wide, between a fifth and sixth wider than the prothorax, the lower edge
ogival, with narrowly blunt tip, the sides at some distance from the base very
feebly and obtusely prominent; grooves coarse, very deep and abrupt, the
intervals flat, smooth; entire under surface with small but distinct sparse
punctures, the mes-epimera coarsely, very densely punctate, with narrow
smooth edges; legs densely punctured. Length 2.5 mm.; width 1.6 mm.
Brazil (Chapada—forest). November. Two specimens...abruptus n. sp.
Form and polished lustre nearly similar, the pronotum and head more blackish
piceous, the legs black and decidedly longer; beak thicker and shorter, four-
fifths as long as the prothorax, strongly arcuate, strongly and closely punc-
tate, finely, sparsely so above; antenne blackish and not rufous, more medial;
transverse impression at base of beak similar, distinct but not sulciform;
prothorax fully a third wider than long, the sides from the base a little more
converging, feebly arcuate, less rapidly rounding anteriorly to the tubulation;
surface similarly very smooth, but with a somewhat wider area of deep sepa-
rated punctures at each side; basal lobe similar; scutellum much smaller,
rather minute, more deeply impressed along the middle, but subquadrate;
elytra only slightly longer than wide, more obtusely ogival, not a fifth wider
than the prothorax, the subapical prominences, humeri, grooves and intervals
nearly similar; metasternum equally sparsely but more coarsely, the mes-
epimera coarsely but more loosely, punctate; legs less densely so, the tibic
longer, more slender and with much feebler external angulation near the base.
Length 2.35 mm.; width 1.5 mm. Brazil (Chapada). March. One ex-
P2001 8) Lge Ra ees MON RN NY OR Te RNR Ese ENG i Rahs subquadratus n. sp.

BRAZILIAN BARINE 59

Form nearly as in abruptus but smaller and somewhat narrower, deep polished
black, the prothorax deep rufo-piceous; beak rather thick, arcuate, not
quite as long as the prothorax, strongly, closely sculptured at the sides;
separated from the head by a very shallow and undefined impression; pro-
thorax less distinctly wider than long, narrower, the sides a little more con-
verging and barely arcuate, more gradually arcuate and converging well
beyond the middle to the tubulation, which is fully half as wide as the base
and relatively wider than in abruptus; basal lobe small, truncate, nearly
smooth, the lateral impressions feeble; scutellum very small, quadrate, flat,
smaller and not so smooth as in abruptus; elytra a little longer than wide, a
fifth wider than the prothorax, ogival, with narrowly rounded apex, the sub-
apical prominences giving a subtruncate appearance to the disk when viewed
antero-obliquely; humeri slightly prominent but rounded; grooves coarse,
abrupt, very deep and smooth, the intervals flat and smooth; under surface
nearly as in the preceding, the hind tibize moderately but sharply dentate
externally at base. Length 1.9 mm.; width 1.18 mm. Brazil (Chapada).
November Onevexamplevy9e. {Aces tis Sod Ae nes histricus n. sp.

6—Body distinctly subrhombic, but with the subapical elevation of the elytra
producing an arcuato-truncate effect when viewed antero-obliquely, highly
polished and black throughout; beak feebly arcuate, moderately thick,
distinctly punctate laterally, very minutely and sparsely above, the front
with a median fovea but without transverse impression, three-fourths as
long as the prothorax, which is but just visibly wider than long, the sides
obviously converging from the base, though not strongly, and feebly arcuate,
rapidly rounding anteriorly to the tubulation; surface very smooth, with
some sparse confused punctures at the lateral edges, the basal lobe small,
minutely, sparsely punctulate, narrowly truncate, without trace of lateral
impressions; scutellum very small, quadrate, but not as wide as long, canal-
iculate; elytra distinctly longer than wide, between a fourth and fifth wider
than the prothorax, evenly ogival at the true edge, obtuse at apex, the
humeri somewhat prominent, though broadly rounded; grooves not quite so
coarse as in subquadratus but similarly very deep and abrupt and with
smooth flat intervals; under surface coarsely, rather closely, subevenly
punctate, finely and very sparsely on the propleura; legs rather short,
coarsely and loosely sculptured, the hind tibie strongly and acutely dentate
externally near the base. Length 2.8 mm.; width 1.8 mm. Brazil (Santa-
FEM) AM ONES PECIMMEM: Hee 1 eB weal a oles See eas eee subsulcatus n. sp.

Body larger, much stouter and oval, polished and black, the pronotum with very
faint piceous tinge; beak short, thick, feebly arcuate, compressed and feebly
tapering, only two-thirds as long as the prothorax, coarsely, densely punc-
tured at the sides, finely, closely and substrigosely so above, without trace of
fovea or transverse impression at base, the surfaces perfectly continuous;
prothorax but slightly wider than long, the sides distinctly converging from
the base, very feebly arcuate, rapidly very strongly converging anteriorly
to the tubulation, smooth, the coarser sparse punctures on the upper part
of the flanks distinct; basal lobe small, nearly smooth, not laterally impressed,
feebly truncatulate; scutellum small, quadrate, longitudinally concave;
elytra barely visibly longer than wide and not a fifth wider than the pro-
thorax, obtusely oval, subapical elevation feeble, the humeri but slightly
prominent, large and rounded; grooves rather coarse, very deep and abrupt,
somewhat punctulate laterally, the intervals smooth and flat; abdomen with
the two basal segments not modified but coarsely, closely and equally punc-
tate, the suture deep and distinct; hind femora loosely punctate, rather
stout, the tibia relatively very slender, with the outer tooth near the base
extremely minute and tuberculiform. Length 3.35 mm.; width 2.18 mm.
Brazil (Rio de Janeiro). November. One specimen........obtusus n. sp.

60 MEMOIRS ON THE COLEOPTERA

7—Form broadly oval, smooth but rather dull, dark red-brown in color through-
out, the head and beak blacker; beak moderately thick, very feebly arcuate,
short, only three-fourths as long as the prothorax, feebly tapering and
compressed, the sides coarsely, densely sculptured, finely and very densely
strigato-punctate above, the transverse basal impression feeble, the frontal
fovea deep and conspicuous; antenne medial, of the same structure as in
all the preceding; prothorax very large and subequal in width to the elytra,
not quite a fourth wider than long; sides slightly converging and nearly
straight, gradually strongly rounding beyond the middle to the strong
tubulation; surface with the extremely minute punctulation gradually
stronger toward the sides; basal lobe throughout with rather strong and
close punctures, subtruncate at tip, the lateral impressions obsolete; scutel-
lum very small, quadrate, feebly impressed along the middle; elytra para-
bolic, scarcely longer than wide, across the moderate, rounded and slightly
prominent humeri only a sixth or seventh wider than the prothorax, the
subapical prominences obtuse and feeble; grooves very coarse, deep, abrupt,
punctate at bottom, the intervals flat, minutely and remotely punctulate;
abdomen at base finely, sparsely punctate, at least on the second segment;
legs strongly, closely punctate; outer basal tooth of the hind tibie narrow,
very acute and aciculate. Length 3.0 mm.; width 1.7 mm. Brazil (Cha-
pada—campo):' October.. Onespecimen.. 0.24.0. <<a. v4.<: discolor n. sp.
8—Body obtusely oval, smooth, deep polished black throughout; beak only
moderately thick, very evenly and distinctly arcuate, almost as long as the
head and prothorax, slightly compressed, strongly, closely punctate, finely
and sparsely above, separated from the head by a moderate impression;
prothorax only a fifth wider than long, the sides distinctly converging and
nearly straight, gradually broadly rounding beyond the middle to the not
very abrupt, short tubulation, which, as usual, is much less than half as
wide as the base; surface very smooth but, at each side except toward apex,
there is a cluster of rather coarse separated punctures; basal lobe moderate,
nearly smooth, but with distinct lateral impressions of the thoracic base;
scutellum very small, quadrate, feebly canaliculate; elytra broadly parabolic,
slightly elongate, only very slightly wider than the prothorax, the subapical
swelling obvious, the discal outline behind subtruncate when viewed antero-
obliquely; humeral swellings very slight, broadly rounded; grooves narrow
but deep and abrupt, becoming obsolete on the flanks except apically, the
ninth and tenth grooves deep; propleura impunctate, the rest of the. under
surface rather strongly punctate, especially the mes-epimera; hind tibic
sharply angulate externally at base. Length 2.75 mm.; width 1.65 mm.
Brazil (Santarem): One specimen? 2 fac wc ccs ee ees scuticulatus n. sp.
Body more oblong-oval, highly polished and piceous-rufous in color throughout;
beak rather thick and strongly, evenly arcuate, making a distinct angle
with the head above, about as long as the prothorax, shining, subcylindric,
finely, sparsely punctate, the antenne medial, of the usual structure; pro-
thorax much shorter, two-fifths wider than long, the sides almost parallel,
feebly arcuate, rapidly rounding and strongly convergent beyond the middle,
the well-marked tubulation half as wide as the base, smooth and completely
impunctate throughout, the basal lobe moderate and rounded, the lateral
impressions subobsolete; scutellum very small, subquadrate, flat, narrower
than long; elytra large, very obtusely oval, a fourth longer than wide, a
fourth wider than the prothorax and between two and three times as long,
obtusely rounded at apex, the posterior elevations evident but not producing
a truncation of the surface to oblique view; humeri not prominent, broadly
rounded; grooves not coarse but very deep and extremely abrupt, impunc-
tate, 7 and 8 extremely fine and subobsolete; intervals flat and very smooth;

BRAZILIAN BARINE 61

propleura smooth but punctate along the base; abdomen sparsely punctate;
tibiz slender, rounded externally at base, without trace of angulation.
Length 2.65 mm.; width 1.5 mm. Brazil (Santarem). One specimen.
vernix n. sp.
g—Outline subevenly oval, shining, deep black in color, the prothorax above and
beneath bright rufous; beak rather thick, moderately arcuate, compressed
and strongly, densely sculptured, less coarsely but in great part strigosely
above, three-fourths as long as the prothorax, the antenne medial; head
minutely, remotely punctate, piceous in color; prothorax about a fifth
wider than long, the sides feebly converging and slightly arcuate, rapidly
rounding in about ‘apical third to the strong tubulation, which is much less
than half as wide as the base; surface throughout with distinct sparse
punctures, bearing short erect yellowish sete; basal lobe moderate, rounded,
unimpressed; scutellum very small, oblong, deeply canalate except at base;
elytra regularly and obtusely parabolic, a fifth longer than wide and a fifth
wider than the prothorax, the subapical prominences moderate; humeri
obliquely rounded, scarcely prominent; grooves very coarse, deep and abrupt,
punctured along the bottom, equal throughout; intervals flat, each with a
single series of distinct and well-spaced punctures, bearing rather long erect
silvery sete; under surface strongly and closely, the legs coarsely and
rugosely, punctured; tibiz externally toward base not angulate, but with a
series of small erect acute spines; claws arcuate, slender, long and widely
separated. Length 2.7 mm.; width 1.4 mm. Brazil (Chapada—forest).
OctobersmOne specimen, : 32.2 20 e se yo eee eke week setulosus n. sp.

These species hold together in general structure and habitus
very well, and seem to constitute a natural generic group.

Bonomius n. gen.

In its bright metallic coloration, the type of this genus stands
apart from the rest of the tribe and forms a very striking exception
to anything hitherto known, so far as I can discover; it may be
described as follows:

Bonomius zneoviridis n. sp.—Rather elongate, rhombic-suboval, very smooth
and polished throughout above and beneath, bright greenish-zeneous throughout,
the legs slightly more greenish; beak thick, fully as long as the prothorax, moder-
ately and evenly arcuate, evenly cylindric, distinctly but irregularly punctate,
minutely and sparsely above, not impressed at base; antennze submedial, the
club large, oval, compact and fully as long as the funicle, finely, very densely
pubescent, the sutures evident; lateral grooves beyond the antenne deep more
than half way to the apex; mandibles thick, decussate; head rather strongly,
closely punctured, the frontal fovea distinct; prothorax but little wider than
long, the sides rather strongly converging, broadly and evenly arcuate from base
to the broad tubulation, which is half as wide as the base; surface very smooth
and impunctate; basal lobe small, narrowly rounded, the lateral impressions
shallow but somewhat evident; scutellum rather small, smooth, as wide as long,
narrowed basally; elytra three-sevenths longer than wide, two-fifths wider than
the prothorax, parabolic, but with very feebly arcuate sides, the humeri rather nar-
rowly rounded and laterally prominent; striaz extremely fine and barely traceable,
with fine and rather distant punctures, I and 2 elongate-foveiform at base, I-3 deep
and groove-like near the apex, 9 and 10 moderately coarse, fine basally; intervals
wide, flat, impunctate; abdomen shining and smooth, impunctate, transversely

62 MEMOIRS ON THE COLEOPTERA

and feebly impressed at base; sterna and legs nearly smooth, the femora cylindric;
tibiae feebly arcuate, cylindric and unmodified; third tarsal joint well dilated,
the claws well developed, arcuate and widely diverging. Iength 6.3 mm.;
width 3.7 mm. Colombia. A single specimen, sent by Desbrochers des Loges.

The prosternal sulcus is very abrupt, deep and capacious, about
as wide as the beak, the anterior coxee separated by half their width.

Hiotus n. gen.

This is a very large genus, the characters of which, as derived
from the type species, differ considerably from those of Diorymerus,
with which it is usually associated. The body is evenly ovoidal,
with but little difference in width between the prothorax and
elytra, with polished glabrous surface, transversely swollen and
coarsely, densely sculptured first ventral segment and slender and
perfectly free but variably diverging tarsal claws. The beak and
the capacious deep and abruptly limited prosternal sulcus, are
nearly as in Diorymerus, but the antennal club is smaller, being
very much shorter than the funicle as a rule, densely pubescent,
oval, pointed and with more obvious sutures. The body varies
from very moderate to minute in size, including some of the smallest
of the entire Barine.

The heterogeneity of the species indicates that they should be
divided into a number of subgeneric groups, which may be outlined
as follows:

Antennal club much longer, narrower and elongate-oval, subequally segmented .2
Antennal club smaller and oval, though similarly segmented, pointed apically

and ‘with very distinct: suthresiirs|..'.202 shee ser Gel ae aoe erie eke 5
2—Body larger, the first abdominal segment strongly, transversely swollen and
coarsely, very conspicuously punctate in both sexes................-.5+- 3
Body,averycsmiallsin: size2sy at ose cee Sar cee ie ORNs Se Lee 4
3—Outline very broadly oval, almost subcircular in some cases, the surface
bicoloréd aise Gv Beak Se Ges ad ee a a ee eee I
Outline more rhombic-oval, of a very intense and highly polished black through-
ULES Pe eth Se aE Fi ern se mle seer Deel Bi ail SREY Ga Re os eae a es Bt
4—Tibiz angulate to strongly dentate externally at or near the base....... III
Tibiz more slender, rounded externally toward base...............0000 eee IV
5—Abdomen not modified in any way at base, flat, smooth and polished...... V

These groups are very unequal in size, though none is founded
upon a single species, the second and third are by far the largest.
The last three, because of their minuteness, present in mass a very
different appearance from the first two, and I have no doubt at all
that they are all at least subgeneric and are so considered below.

BRAZILIAN BARIN 63

Group I

Subgenus Hiotus in sp.

Color in the various subdivisions of Hiotus is a very important
character, all the numerous species of the second group being as
intensely and uniformly black throughout, as the less numerous
representatives of Hiotus proper are sharply and conspicuously
bicolored. The eight species may be defined as follows:

Hind tibiz feebly oblique and straight at base, the external angle obtuse to rather
well marked, but not in the least prominent; scutellum quadrate and con-

Hind tibiz strongly and more broadly oblique externally at base, the angle with
its apex forming a small, sharp and slightly prominent tooth; scutellum

inianonwaak racial anal jit eee ake nase es ooewoocod a oe eplond so maleM ccm ac 7
2—First ventral segment subevenly tumid medially, having only a very fine and
feebly impressed longitudinal line; basal thoracic lobe truncate.......... 3
First ventral with the usual transverse tumidity rather broadly concave medi-
2 V2. Sige a ee Ce OR rae, ER az ls at vale vont fegspckous ances waters covets 4

3—Body very broadly, subevenly ovoidal, polished, deep black, the elytra some-
what picescent basally, the pronotum bright rufous; beak thick, feebly
arcuate, three-fifths as long as the prothorax, a little shorter in the male,
strongly, rather closely punctate, finely, more sparsely above, the upper
surface a little more sloping distally; antenne submedial, the club slightly
more than half as long as the funicle; head closely punctate, finely, sparsely
between the eyes, the fovea small but evident; prothorax large, nearly a
third wider than long, the sides strongly, evenly arcuate from base to tubu-
lation, which is less than a third as wide as the base; surface very smooth;
basal lobe broad, not punctate or laterally impressed; scutellum quadrate,
deeply concave, smooth, a little shorter than wide, especially in the female;
elytra fully as long as wide, broadly parabolic, only very little wider than the
prothorax, the humeri broadly rounded and not prominent; stria moder-
ately coarse, deep and grooved internally, gradually fine, unimpressed and
finely punctate on the flanks, the two lateral deep, grooved; intervals wide,
nearly smooth; propleura very smooth, the sides of the prothorax broadly
rounded in section; sterna and side-pieces strongly, evenly and sparsely
punctate; basal abdominal segment extremely densely punctate, the tumid-
ity broadly flattened medially with a narrow and feeble impressed line;
outer hind tibial angulation at base bluntly rounded at apex. Length 4.2-
4.4 mm.; width 3.2 mm. Brazil (Chapada). November. Two specimens,
apparently male and female.. aele ve .inflatus n. sp.
Body very nearly as in the preceding i in color, form and lustre, but not quite so
broadly rounded and with the sides of the prothorax more evenly arcuate
from base to the similar narrow tubulation; beak (cj almost similar, but
not quite so thick, the antennal club a trifle more slender, nearly three-fifths
as long as the funicle; elytra slightly less elongate, with the tip more broadly
rounded, not quite as long as wide, the sides much more arcuate than in
inflatus, but otherwise nearly similar; mes-epimera with the similarly well
separated punctures slightly coarser; hind tibize somewhat broader, with
the angle limiting the basal obliquely more sharply defined; very densely
punctate and tumid first ventral more convex medially, with feebly im-
pressed median line. Length 4.0 mm.; width 3.2 mm. Brazil (Chapada).
INovembers A single imal etter screruns atsyevayersjertie Siciens axeselol erciteh« obesus n. sp.

64 MEMOIRS ON THE COLEOPTERA

Body nearly similar in general form, polished lustre and in coloration, but much
smaller in size, slightly narrower and with more rufescent elytra basally;
beak similarly short in the male, but much less stout, similarly sculptured,
the antennal club a little longer, about two-thirds as long as the funicle;
prothorax nearly as in obesus, the converging sides more evenly arcuate than
in inflatus; scutellum similarly smooth and concave, subquadrate, a little
wider than long; elytra throughout nearly as in inflatus, but narrower,
slightly elongate, similarly more narrowly rounded at apex than in obesus;
humeri smaller and somewhat more narrowly and subprominently rounded
than in either of the preceding; mes-epimera narrower than in inflatus,
but similarly punctate, densely, rugosely sculptured; basal segment of the
abdomen more tumid medially, the median impressed fine dividing it into
two pronounced tumuli; angulation at base of the hind tibie rather blunt at
tip. Length 3.2 mm.; width 2.25 mm. Brazil (Chapada). March.

tumidibasis n. sp.

a-— Thoracic lobe.truncate ss. bo cen. ceteac ae ace ee Te ae eae 5

‘Thoracic lobe feebly sinuiate at tipsa 5. Ohi A: os cote estonia ieee eee 6

5—Form and general characters nearly as in the preceding, but with more uni-
formly piceous elytra and more elongate prothorax; beak thick, feebly
arcuate, strongly sculptured and two-thirds as long as the prothorax, the
narrow and elongate-oval antennal club almost as long as the preceding six
joints of the funicle; prothorax only a fifth or sixth wider than long, other-
wise throughout nearly as in the two preceding; scutellum quadrate, smooth
and concave; elytra throughout as in inflatus, but with the humeri less
broadly rounded and somewhat more prominent; hind tibie with the external
basal prominence broadly rounded at the summit. Length 3.6 mm.; width
2.5 mm. Brazil (Chapada)... March. One female specimen.

caviscutis n. sp.

Form a little narrower, the elytra paler, piceo-rufous in color throughout, the
prothorax shorter, nearly a third wider than long; beak similar, but two-
thirds as long as the prothorax, similarly arcuate, thick and coarsely sculp-
tured; antennz a little shorter, the club not quite so slender, though about
as long as the preceding six joints; prothorax with the sides converging and
evenly arcuate from base to tubulation, the latter a little broader than in the
preceding species and more than a third as wide as the base; minute punctu-
lation unusually distinct and impressed; scutellum smooth, quadrate and
concave, similar in general form, but rather notably wider than long; elytra
as in the preceding, though even more evidently longer than wide and with
similarly narrowly rounded tip, but with the sides less arcuate, the humeri
not quite so narrowly rounded; outer angle of the hind tibize much better
defined, scarcely even blunt at tip. Length 3.0 mm.; width 2.18 mm.
Brazil (Chapdda):> March; One female. (7. 6-20 eee hilaris n. sp.

6—Body more broadly ovoidal, similar in color and polished lustre, the elytra
dark piceo-rufous; beak thick, feebly arcuate, nearly three-fourths as long
as the prothorax and strongly, closely sculptured, almost equally so above
and at the sides; antennal club shorter, as long as the four or five preceding
joints, its four segments equal in length as usual; prothorax a fifth wider than
long, the sides strongly, subevenly arcuate from base to tubulation, the latter
barely a third as wide as the base; sparse punctulation very minute as usual;
scutellum concave, wider than long; elytra as usual but little wider than the
prothorax, not longer than wide, parabolic, with notably arcuate sides and
narrowly rounded apex, the humeri broadly rounded; striation as in all the
preceding; external angulation of the hind tibiz unusually large and ele-
vated, but with its summit bluntly rounded; sculpture of the mes-epimera
differing from that of the preceding species, the coarse separated punctures

BRAZILIAN BARINZE 65

not distributed throughout the surface, but leaving a well defined smooth
border. Length 3.9 mm.; width 2.8 mm. Brazil (Chapada). March.
Ore tenialle .. atuitee corer ied Wie ee RM eM a a Clabes: A 5 x sila ck impressibasis n. sp.
Body throughout nearly as in the preceding, but somewhat narrower and not
quite so large, the prothorax a fourth wider than long, but otherwise almost
similar; beak in the female as in the preceding, but rather more compressed
at the sides, the antennal club a little longer; scutellum smaller, evenly
quadrate and not wider than long, concave as usual; elytra similar, but with
still more broadly rounded humeri and more punctate striae; mes-epimera
having the still coarser punctures scattered over the entire surface; subbasal
external elevation of the hind tibiz in the form of a large and well defined
triangular tooth; beak in the male similar to that of the female but shorter.
Length 3.5-3.6 mm.; width 2.4-2.5 mm. Brazil (Chapada). March.
semiruber n. sp.
7—Form more rhombic-oval, the pronotum more steeply sloping anteriorly;
lustre and coloration similar, except that the piceous elytra become nubilously
rufous at the humeri; beak much less stout, two-thirds as long as the pro-
thorax, straight, feebly arcuate distally, finely, very closely strigato-punctate
throughout, extending onto the head, the frontal fovea very minute and
feeble; antennal club as usual, as long as the five preceding joints, the first
funicular joint unusually slender, three times as long as wide;. prothorax
not a fourth wider than long, the sides converging rather strongly and evenly
arcuate from base to tubulation, which is less than a third as wide as the base;
entire flanks beneath with shallow and sublunate punctures, becoming fine
and sparse upwardly though a part of the pronotal sides; basal lobe closely
and strongly punctate, truncate at tip, not laterally impressed; scutellum
punctate; elytra relatively wider, fully a fifth wider than the prothorax, with
broadly rounded and slightly prominent humeri, slightly longer than wide,
parabolic; striz rather coarse and grooved suturally, fine and more distinctly
punctate laterally, excepting, as usual, the coarse ninth and tenth, the sutural
rather broad and more distinctly punctate basally; mes-epimera coarsely
and sparsely but shallowly punctate; abdomen not distinctly tumid, but
closely, strongly punctate and medially broadly impressed on the basal
segment; external tibial tooth broad, with its apex finely aciculate and promi-
nent. Length 3.5 mm.; width 2.3 mm. Brazil (Chapada). March. A
SiMe IRN th cs cabs tats oe eketat'y alicrendie: Gietis once ace angustinasus n. sp.

The above forms adhere very closely to a common type of color-
ation and general habitus, and it is quite possible that several of
them may not maintain a fully specific status; the material is not
sufficient to decide this at present. They are all from the same
region and most of them were taken in the same season of the year;
the case is somewhat similar to that of Haplostethops ellipsoidea and
related species (Mem. Col., IX, p. 496) in these respects. There
are some radical differences in the form of the tumidity at the base
of the abdomen, which feature clearly delimits certain groups, and
these abdominal characters, as in Diorymerus, are apparently not
affected materially by the sex of the individual; sexual differences
are very slight and, so far as can be observed, affect only the form
of the beak. |

T. L. Casey, Mem. Col. X, Aug. 1922.

66 MEMOIRS ON THE COLEOPTERA

Group II
Subgenus Melanolia nov.

This group is composed of a large number of species, singularly
constant in their oval or sometimes feebly rhomboidal and very
convex form and deep black, polished surface throughout, there
being absolutely no diversity in coloration. As in the preceding,
the elytra are only very slightly wider than the prothorax, with
much more feebly marked humeri than in any Diorymerus. The
abdominal characters are of the same nature as in Hiotus proper.
The species now in my collection are as follows:

Discal elytral striz fine and very feeble or obsolete, the sutural distinct........ 2
Discal striz distinct, though not subsuleate.. .\- .: 2. «ocn.+,. 69 sie eee ee 13
Discal striz coarse and very deeply grooved or sulciform; prothorax punctured

throughowte.. oe Gecmeoas ye eels eis, cals ea iene ae ee eRe ee 14
2——Pronocuim 1MpPunetate. aceiesn eae scscck sO RE eee clos Be ee ae ee 3
Pronotum punctured sparsely but conspicuously at the sides or apex......... II

3—Ninth and tenth elytral striz rather coarse and distinct throughout the length;
hind tibiz obliquely truncate and more or less conspicuously dentate ex-

ternally near the bases. aera acy. eye 4 ecto, Meee CR ae ee eee ee 4
Ninth and tenth striz very fine and indistinct, at least basally................ 8
4—Scutellum wider than long, very distinct, not closely fitting a thoracic sinus. . .5
Scutellum very small, quadrate, not Closely fitted.. ae a6
Scutellum narrow, parallel, longer than wide, closely filling a a “small ‘thoracic

SIMUS ia c:0 9 Hee wenrstes fiefels BG cose Kun neue hie ae Ue ee Oe ee ee

5—Form stout, ovoidal, extremely convex as usual, polished; beak rather thick,
feebly arcuate, compressed, two-thirds as long as the prothorax, not coarsely
but closely, rugosely punctate, almost as much so above, where there is a
fine and shining, subelevated median line; antenne medial, the oval club
three-fifths as long as the funicle; prothorax in profile very evenly and
moderately arcuate, also very strongly sloping from base to apex; prothorax
a fifth wider than long, the sides strongly converging and evenly, moderately
arcuate from base to the feebly subtubulate apex, distinctly more than a
third as wide as the base; surface very smooth; basal lobe broadly, evenly
rounded, with an extremely faint medial sinus at apex, the lateral impres-
sions obsolescent; scutellum flat and transversely suboval, finely, sparsely
punctulate; elytra somewhat elongate, at the broadly rounded humeri only
a little wider than the prothorax; sides subevenly, distinctly arcuate and
converging to the rather narrowly rounded apex, the striz, with exceptions
noted, and also the minute remote punctures, barely traceable; mes-epimera
with rather coarse sparse punctures throughout, the thoracic flanks very
smooth; femora with strong, evenly and distinctly separated punctures, the
external tibial tooth large and very sharp; swollen and strongly sculptured
basal segment of the abdomen concave and setulose at the middle. Length
3-6 mm.; width 2.6 mm. Brazil (Chapada). November. A single speci-
ha pee ee reap A RS! OA. AED bise CaS ab ee Ce ste ices ks od evanescens n. sp.
Form slightly less obese and more rhombic-oval, the converging sides of the
elytra much less arcuate, the tip similarly rounded; beak nearly similar,
but a trifle longer and not quite so thick, the antenne almost similar;
prothorax differing only in being a little shorter, about a fourth wider than
long, the base similar, but with the lobe more narrowly and deeply sinuate

BRAZILIAN BARIN® 67

at the middle of its rounded contour; scutellum nearly similar, but more
truncate behind; elytra more evidently longer than wide, and, at the broadly
rounded humeri, more distinctly wider than the prothorax; strie extremely
fine, but rather more evident than in the preceding, impunctate; under
surface and legs nearly similar, the very acute outer tooth of the hind tibize
still larger and higher. Length 3.5 mm.; width 2.5mm. Brazil (Chapada).
Marehsj« One: speeimenissya tapers ee els ens sss Lely nah convergens n. sp.
Form nearly as in convergens but stouter, the sides of the elytra less arcuate than
~ in evanescens; outline thombic-oval; beak (<) rather thick, feebly arcuate
and compressed, three-fifths as long as the prothorax, rather distinctly
tapering distally, strongly but not very coarsely punctate throughout, the
upper surface with fine and smoother line, or (2) three-fourths as long as
the prothorax, slightly less thick and not quite so tapering; antennal club
three-fifths as long as the funicle; prothorax with the surface in profile
rather strongly, subevenly arcuate, scarcely a fifth wider than long, the
converging sides subevenly arcuate; basal lobe obtusely rounded, with a
very minute and feeble median sinus; scutellum transversely suboval,
nearly smooth, feebly convex; elytra slightly elongate, but little wider than
the prothorax, rapidly parabolic, with very moderately arcuate sides and nar-
rowly rounded apex, the humeri very broadly rounded; discal strie extremely
fine, feeble and subobsolete; posterior part of the mes-epimera impunctate;
hind femora strongly, sparsely punctate, the tibial tooth high, large and
very acute; first ventral tumid, evenly convex and unimpressed medially,
very coarsely, densely sculptured. Length 3.7-3.9 mm.; width 2.65 mm.
Brazil.(Gantarem)= ) Two specimensis«.. <<oc ss ceeee oes .gulosus n. sp.
Form nearly similar but slightly less obese and smaller in size; beak nearly
similar, but with more pronounced transverse basal impression, the antennal
club nearly similar, but rather more gradually pointed; prothorax similar,
the basal sublobar impression more distinct though feeble; lobe less broadly
rounded, the small sinus similar; scutellum nearly flat, smooth, not so
distinctly wider than long, rounded; elytra more distinctly elongate, nearly
similar in outline, but with the apex still more narrowly rounded; discal
striee almost completely obsolete, not evidently traceable, but with evidences
at base and apex as usual; mes-epimera and under surface almost similar,
the scabrous first ventral even more conspicuously, evenly tumid at the
middle; legs nearly similar, even less closely punctate. Length 3.0 mm.;
width 2.15 mm. Brazil (Santarem). One specimen ....... amnicola n. sp.
6—Body oval, but faintly subrhombic; beak short, rather thick, feebly arcuate,
narrowing distally, four-sevenths as long as the prothorax, strongly com-
pressed, finely, not densely punctate, still more finely and very inconspic-
uously above, the transverse basal impression distinct: antennz medial, the
club slightly smaller and narrower, but little more than half as long as the
funicle; prothorax in profile much more rapidly sloping near the apex,
more than a fourth wider than long, the very strongly converging sides
moderately and evenly arcuate, the subtubulate apex slightly more than
a third as wide as the base; surface extremely smooth and polished above
‘and below; basal lobe broadly rounded, with a very minute and feeble sinus;
scutellum very small, quadrate, feebly impressed centrally; elytra slightly
elongate, ogival, with evenly and rather strongly rounded sides and narrowly
rounded apex, across the feebly prominent and rounded humeri about a
sixth wider than the prothorax; discal strize barely traceable, except at base
and apically; mes-epimera, very exceptionally, entirely smooth, with faint
traces of punctures only anteriorly; hind femora somewhat clavate, unusually
short and rather finely, sparsely punctate, the tibial tooth triangular and
acute. Length 3.0 mm.; width 2.1 mm. Brazil (Santarem). One male
CERSVEITON 0) oe he ee cat eytec 0, Sea ica Go aL Ce eae flebilis n. sp.

68 MEMOIRS ON THE COLEOPTERA

7—Outline subrhombic-oval, not very stout; beak very thick, the upper surface
arcuate, the lower nearly straight in profile, but little shorter than the
prothorax, strongly compressed, rather finely, sparsely punctate, minutely
and remotely so above, the transverse basal impression distinct, though
obtuse as usual; front not foveate; antennz medial, the oval pointed pubes-
cent club scarcely as long as the five preceding joints; prothorax with the
upper surface moderately and evenly arcuate in profile from base to apex,
a fifth wider than long, the sides less evenly arcuate than usual, strongly
converging and but slightly arcuate from the base, more rounding and
converging anteriad, the apex fully two-fifths as wide as the base; pronotum
very smooth; flanks beneath with rather strong sparse punctures, which
reach the lateral edge near the base; lobe rather small and feeble, the small
sinus deep and conspicuous; scutellum narrow, flat, feebly impressed along
the middle distally; elytra distinctly longer than wide, a fifth or sixth wider
than the prothorax, narrowly parabolic, with but moderately arcuate sides,
the humeri:broad!y rounded; discal strize as in the preceding; mes-epimera
very coarsely, closely punctate throughout; femora rather narrow, sub-
strigosely punctate; tibial tooth rather small but triangular and sharp; first
ventral much and evenly swollen, very coarsely and densely, rugosely punc-
tate. Length 2.7 mm.; width 1.7 mm. Brazil (Santarem). One example.
demissus n. sp.

8—Posterior tibia oblique and simply angulate externally at base. Body rather
small in size, subrhombic-oval; beak moderately thick, somewhat arcuate,
compressed and strongly sculptured, distinctly shorter than the prothorax;
antennal club about as long as the preceding six joints, the first funicular
joint as long as the next three; front with a large deep excavation as in
cavifrons; prothorax with the upper surface evenly and moderately arcuate
in profile, a fifth wider than long, with strongly converging, evenly arcuate
sides, the basal lobe short and feeble, with a few marginal punctures and a
small distinct sinus; flanks beneath smooth, punctured only basally; scutel-
lum small, parallel, longer than wide, smooth and longitudinally impressed;
elytra parabolic, a fifth wider than the prothorax and slightly elongate;
discal striz scarcely at all traceable, evident basally; mes-epimera very
coarsely punctate throughout; legs rather slender, not very densely, sub-
strigosely punctate, the flattened tibiz almost fluted; first ventral coarsely
punctate and swollen, not impressed. Length 2.4-2.7 mm.; width 1.7—1.85
mm. Brazil (Chapada—forest). March and November. Four specimens.
foveiceps n. sp.

Posterior tibiz oblique and arcuate externally at base, the arcuation ending
distally in a long, very oblique spiniform tooth, which is almost parallel to
the outer tibial edge and separated from the latter by a deep sinus; front
with a large deep cavity, as in the preceding. Body rhombic-oval; beak
(co) short, thick, compressed, barely three-fifths as long as the prothorax,
the flattened sides closely, the upper surface more finely but closely, sub-
strigosely, punctate; antennz nearly as in the preceding, but with the
strongly sutured club longer than the preceding six joints, or (2) much
more slender, cylindric, arcuate more distally, two-thirds as long as the
prothorax, more sparsely and finely punctured; front in both sexes with a
large and very deep cavity; prothorax almost similar, but barely a sixth .
wider than long; basal lobe larger, impunctate and very evenly rounded,
without trace of sinus; scutellum minute, quadrate, very feebly, longitudi-
nally impressed; elytra more elongate, a fourth wider than the prothorax,
with somewhat prominent humeri, parabolic in outline; discal striz exces-
sively fine and feeble, but with the fine distant punctures evident, though
extremely feeble; mes-epimera only partially punctured; very coarsely

BRAZILIAN BARINZ 69

punctured and slightly tumid first ventral impressed medially, except at
the posterior margin. Length 3.3-3.6 mm.; width 2.2-2.5 mm. Brazil

(Chapada):-; March:iq-T wo: specimens: 04 shoes sus Soe. fon: cavifrons n. sp.
Posterior tibiz broadly rounded externally toward base, having, at an unusually
long distance from the latter, a very small acute tooth.................. 9

g—Front with a large deep cavity as in the two preceding. Body less stout,
subrhomboid; beak rather thick, finely, sparsely punctate, arcuate, not
three-fourths as long as the prothorax, received closely in the capacious
ante-coxal sulcus; prothorax but little wider than long, the converging sides
evenly and moderately arcuate from base to the feeble apical sinuses, the
apex scarcely more than a third the basal width; upper line in profile rather
strongly, very evenly arcuate from, base to apex; basal lobe moderate,
subimpunctate, the narrow apex strongly, evenly rounded; scutellum minute,
quadrate, with a few small punctures; elytra distinctly longer than wide,
scarcely a fifth wider than the prothorax, the subprominent humeri broadly
rounded, ogival in outline, with rather narrowly rounded apex; discal strize
extremely feeble and rather obtuse but traceable; mes-epimera with sparse
and very coarse but shallow punctures; metasternum strongly punctate;
femora rather long, parallel, polished, minutely, sparsely punctulate; tibial
tooth just behind basal third, erect and acute but very small. Length
2.9-3.1 mm.; width 2.0-2.15 mm. Brazil (Santarem). Two specimens.
parviscutis n. sp.
Front without trace of large cavity, at most with the usual very small median
JOLUDOT CRD Lec son abcierin ech IS pee ae OIE 5 ER RS ERC ae) CARER SN ie eg et go pe Pe 10
10—Form rather stout, rhomboid-oval; beak (<”) thick, arcuate, slightly tapering,
compressed, three-fifths as long as the prothorax, densely punctate, more
finely, densely strigilate above; front with a very small puncture; antenne
nearly as in the preceding species; prothorax in profile arcuate above,
gradually sloping and more nearly straight apically, nearly a fourth wider
than long, the converging sides evenly and very moderately arcuate; entire
flanks beneath somewhat strongly punctured; basal lobe broad, evenly
rounded, well developed and with some submarginal punctures; scutellum
moderate, quadrate, feebly impressed and minutely, sparsely punctulate;
elytra but little longer than wide, a fifth wider than the prothorax, the con-
verging sides very moderately arcuate; apex rather narrowly rounded;
humeri somewhat narrowly rounded and rather prominent; discal stricze
extremely fine and obsolescent, scarcely traceable; mes-epimera with about
twelve coarse shallow punctures; hind femora parallel, rather loosely but
distinctly punctured; minute tibial tooth as in the preceding but rather more
spiniform. Length 3.2 mm.; width 2.3 mm. Brazil (Santarem). One
BIOSCI ET Sl! 2 natn cc ae ete ee eg Re a cornix n. sp.
Form nearly similar but slightly more elongate; beak (<”) almost similar but not
quite so thick, barely three-fifths as long as the prothorax, the upper surface
more densely strigilato-punctate and subopaque; antennz nearly similar;
prothorax not quite so abbreviated, not a fifth wider than long, otherwise
similar, the well developed rounded basal lobe with more numerous but
sparser and more scattered small punctures; lateral impressions similarly
small and feeble; scutellum a little larger, flat, quadrate, minutely, sparsely
punctulate; elytra similar throughout but more distinctly longer than wide,
the humeri similar; discal striation still more nearly obsolete; mes-epimeral
punctures not quite so large but deeper; hind femora not quite so long, more
coarsely, evenly but loosely punctate; tibial denticle minute, acute, slightly
oblique; feebly tumid first ventral more loosely punctate and impressed
medially. Length 2.75-3.3 mm.; width 1.9-2.4 mm. Brazil (Chapada).
November. Found on flowers near the forest. Three specimens.
gentilis n. sp.

70 MEMOIRS ON THE COLEOPTERA

11—Pronotum strongly punctured throughout the subtubulate apex, but not
definitely at the sides. Body stout, almost evenly and broadly oval; beak
(co) moderately thick and tapering, arcuate, compressed, two-thirds as long
as the prothorax, closely punctured throughout, more finely above, the
reéntrant angle between beak and front deep; antennal club smaller than in
the preceding forms, oval, about as long as the preceding four joints, the basal
funicular joint rather long and thick as usual; prothorax in upper profile
very evenly arcuate, a fifth wider than long, the strongly converging sides
evenly arcuate to the subtubulate apex, which is rather more than a third
as wide as the base; the usual sparse infinitesimal punctures become rather
_ evident toward the sides; basal lobe well developed, obtusely rounded,
with a very small feeble apical sinus, minutely, sparsely punctulate; scutel-
lum moderate, quadrate, not deeply impressed; elytra broadly oval, barely
longer than wide, evenly rounded at tip, a fifth wider than the prothorax,
the humeri slightly prominent, their summits rather narrowly rounded; discal
stri# very fine, feeble and barely traceable, 1, 9 and 10 coarse and more or
less deep; mes-epimera with a few strong punctures near the upper limit,
elsewhere minutely and remotely punctulate; hind tibie with a large tri-
angular external tooth at base, the proximal slope of which is finely sinuate
at the middle; tumid first ventral impressed at the middle. Length 3.75
mm.; width 2.8 mm. Brazil (Chapada—camno). November. One

CRAPS cho 9 ne SOR ak oe A IRIE ee ee eae ovoideus n. sp.
Pronotum rather coarsely, sparsely punctate at the extreme sides, but subim-
punctatexatapexsmbodyasmallersunisizes: eek aiee eee nie eee 12

12—Body subevenly oval, but more attenuate behind; beak (co) thick, scarcely
compressed and with the punctures somewhat coarse though sparse, minute
and remote above, very minute and few in number on the head, except at
base, fully four-fifths as long as the prothorax; antennal club as long as the
five preceding joints, the first funicular shorter than usual; prothorax above
evenly arcuate in lateral profile, subsinuously sloping very near the apex,
almost a third wider than long, the converging sides moderately arcuate,
gradually a little more so and somewhat more converging beyond about the
middle, the apex broader than usual, rather tubulate and more than two-
fifths as wide as the base; lateral punctures coarse, not continuous down
the inferior flanks; basal lobe moderate, narrowly sinuato-truncate, subim-
punctate, with rather large but feeble lateral impressions; scutellum a little
wider than long, suboval, nearly flat and smooth; elytra but little longer
than wide, a sixth wider than the prothorax, ogival, with narrowly and
strongly rounded apex, the humeri broadly rounded, scarcely prominent;
discal striz subobsolete, barely traceable, those near the sutural and on the
flanks rather more obvious, 1, 9 and 10 deep; hind femora finely, sparsely
punctate, the tibiz externally oblique basally, the tooth rather small, tri-
angular, the inner margin serrulate; mes-epimera coarsely, sparsely and equally
punctate throughout. Length 3.25 mm.; width 2.25 mm. Brazil (San-
tarem). One specimen. (2.27 0..« ue: ER Kee Re ae definitus n. sp.
Body nearly similar but narrower and much smaller, the beak (co) not so thick
and with the moderate punctures much denser; prothorax nearly similar in
form and profile, but scarcely a fifth wider than long, the sides more evenly
arcuate, barely visibly more arcuate anteriad: strong, sparse lateral punc-
tures visible only at the more extreme sides, but continuous down the in-
ferior flanks; basal lobe moderate, narrowly truncate at tip and with a few
small punctures; scutellum smaller, flatter, quadrate, barely as wide as
long; elytra with subobsolete striation, the sutural stria alone deep, 2, 9 .
and 10 fine but rather evident; mes-epimera coarsely, loosely punctate
throughout; legs much shorter and thinner, the hind tibize obliquely trun-

BRAZILIAN BARINA 71

cate and externally dentate at base. Length 2.25 mm.; width 1.5 mm.
Brazil (Chapada—forest). November. One specimen.....sejunctus n. sp.
13—Beak unusually long and thin and nearly straight, a little longer than the
prothorax. Body less broadly rhomboid-oval, deep black and_ polished,
the abdomen teebly rufescent at apex; beak finely, not closely punctate
throughout, feebly swollen above at base—viewed in profile; antennal club
thick, as long as the six preceding joints; prothorax a sixth wider than long,
the sides moderately converging and feebly arcuate, slightly more anteriad,
the apex not evidently tubulate and almost half as wide as the base; surface
very smooth, sparsely punctulate near the sides, these punctures becoming
coarser and extending down the entire inferior flanks; basal lobe short,
broadly rounded, with a few submarginal punctures; scutellum moderate,
quadrate, somewhat concave; elytra evidently !onger than wide, a fifth or
sixth wider than the prothorax, ogival, narrowly rounded at apex, the humeri
but feebly prominent; striz very fine but distinct throughout, smooth, not
evidently punctate, I, 9 and 10 coarser; hind tibize with the external sub-
basal tooth erect, aciculate at apex; first ventral evenly swollen and very
coarsely punctate. Length 2.8 mm.; width 1.75 mm. Brazil (Santarem).
One specimen of undetermined sex............00.0...00)005. rostralis n. sp.
Beak as usual, thick, feebly arcuate and much shorter than the prothorax..... 14
14—Body of unusually large size, oval; beak two-thirds as long as the prothorax,
not much compressed, strongly, not densely punctate, more finely above;
antennal club as long as the five preceding joints; prothorax rather strongly,
subevenly arcuate in profile, subsinuate anteriorly, a fourth wider than long,
the strongly converging sides strongly and evenly arcuate to the rather abrupt
tubulation, which 1s a third as wide as the base; surface very smooth through-
out; basal lobe broadly rounded, with very few punctures, the apex feebly
sinuate medially; lateral impressions at the basa! edge very feeble and
diffuse; inferior flanks smooth, except at base and toward the coxe; tubu-
lation punctured at the sides; scutellum wel! developed, quadrate, smooth
and convex distally; elytra oval, barely longer than wide, a sixth wider than
the prothorax, the subapical prominences evident, so that the disk is sub-
truncate when viewed antero-obliquely; humeri broadly rounded; strize
strong, but becoming subobsolete though more definitely punctate on the
flanks, 1, 9 and Io coarse and deep, but not punctured; hind tibize sub-
truncate at base, the external angle obtusely rounded, though somewhat
prominent; first ventral strongly swollen, very coarsely and densely punctate,
with the median line narrowly and feebly impressed. Length 4.8 mm.;
width 3.7 mm. Brazil (Constancia, Jan. 1857—H. Clark). Communicated
by Desbrochers des Loges. One specimen................. globosus n. sp.
Body more narrowly but very evenly oval, the humeri not at all prominent; beak
nearly similar, almost three-fourths as long as the prothorax, the transverse
reéntrant angulation between upper surface and head more marked; antennal
club moderate; prothorax a fourth wider than long, the sides strongly con-
verging but only slightly arcuate, more rounded anteriad, the tubulation
more than a third as wide as the base; lateral edges with a few fine feeble
punctures, the inferior surface coarsely, remotely punctate near the coxe,
and more closely at base and on the tubulation; basal lobe rather narrow, its
apex sharply and deeply sinuate, smooth; scutellum slightly elongate, trun-
cate behind, the sides straight, converging from apex to base, which is
narrowly rounded, the surface smooth, deeply concave; elytra but slightly
elongate, between a fifth and sixth wider than the prothorax, sharply para-
bolic, the humeri not prominent; striz coarse suturally, very fine and punc-
tulate laterally, the ninth and tenth very coarse, conspicuously catenulate;
legs as in the preceding but somewhat shorter, strongly punctate; first ventral

72 MEMOIRS ON THE COLEOPTERA

only moderately swollen and less coarsely, more loosely punctate. Length
3.8mm.; width2.75 mm. Brazil (Pernambuco). Desbrochersdes Loges. One
specimen, labeled) sca7vdtnaiis Ge arr tebe ice ee ee vulsus n. sp.
14—Form almost evenly oval, the humeri very slightly prominent; beak only
moderately thick and arcuate, not quite as long as the prothorax, subcy-
lindric and closely, but not very coarsely, punctate, so closely reposing in the
sulcus in the type, that the antennz are not visible; prothorax only just
visibly wider than long, the sides converging and feebly arcuate, gradually
more so anteriad, the apex not at all tubulate and two-fifths as wide as the
base; surface very sparsely punctate, minutely so discally, more coarsely
laterad, and thence down the entire inferior flanks coarsely and closely;
basal lobe moderate, very evenly rounded, strongly punctate, without lateral
impressions; scutellum very small, wider than long, punctulate; elytra dis-
tinctly longer than wide, about a sixth wider than the prothorax, ogival,
narrowly rounded at tip; striz deeply grooved, very abrupt, minutely punctu-
late along the bottom, 7 and 8 finer and feebler; legs moderately punctate,
the hind femora rather inflated, feebly serrulate along the lower edge, the
external tibial tooth triangular and sharp; first ventral strongly tumid and
coarsely, densely punctate. Length 2.25 mm.; width 1.45 mm. Brazil
(Santarem))) Onebspecinient aur aicronine eter eee retractus n. sp.

The species bear a very strong external resemblance among
themselves, but striking structural differences are numerous and
readily observable.

Group III.

Subgenus Hiotopsis nov.

The numerous species of thig subgeneric group are related rather
closely in general organization to the preceding, but are much more
minute in size and of more narrowly oval outline. The first ventral
segment is subsimilarly tumid as a rule, and the prosternal canal
before the coxe nearly similar, as are also the externally basally
dentate or angulate hind tibie. In certain rare cases the hind
femora are minutely denticulate beneath. The antennal club is
well developed, elongate-oval, about as long as the six preceding
joints as a rule, as in the preceding group, and similarly with the
sutures much more evident than in Diorymerus, the basal segment
very much less than half the mass. The species now at hand may
be known easily by the following characters:

Elytra with the discal strize wholly obsolete, or excessively fine and barely visible .2
E\lyiralestricedistinetpateleastyinternallysereesei cee eee ee eee 5
Elytral striz coarser, deeply grooved or sulciform................2..+0000- II
2—Prothorax completely impunctate throughout the dorsal and ventral surfaces,

except a very faint basal series; sutural stria of the elytra turned outwardly

along the base to or even beyond the middle......................-2000- 3
Prothorax impunctate dorsally, but having distinct punctures on the lower parts
of the flanks beneath; sutural stria not at all turned outward at base..... 4

3—Pronotum with a regular single series of minute punctures along the basal
margin, except laterally; body feebly subrhomboid-oval, very smooth and
highly polished, black throughout, the elytra sometimes with barely visible

BRAZILIAN BARINZE 73

piceous tinge; beak (@) exceptional, fully as long as the prothorax, thick
and arcuate basally, thence much thinner and more nearly straight to the
apex, finely punctate, shorter, more evenly thick and arcuate in the male;
antenne slightly behind the middle; prothorax very nearly as long as wide,
the sides converging and moderately, subevenly arcuate throughout; apex
not constricted, nearly two-fifths as wide as the base, the basal lobe moderate,
rounded, with an infinitesimal sinus; scutellum very small, narrower than
long, faintly impressed; elytra oval, a fifth longer than wide and a sixth wider
than the prothorax, the humeri very broadly rounded; discal striz wholly
obsolete, not even traceable, the outer marginal evident but very shallow
and catenulate; femora simple; hind tibiz minutely denticulate externally
near the base. Length 1.8-2.0 mm.; width 1.15-1.35 mm. Brazil (San-
CATEM) pe NWOMSMEGINIO MS epee cates ti Ae Wie Uectory cosdx vgs cinleieie solutus n. sp.
Pronotum without trace of the basal series of punctures, except faintly on the
basal lobe; body shorter and more globose, piceous, the legs rufo-piceous,
the elytra dark rufous; beak moderately thick, feebly arcuate, finely, sparsely
punctate and rather shorter than the prothorax, the latter nearly a fourth
wider than long, the strongly converging sides subevenly arcuate from base
to the unconstricted apex, which is barely a third as wide as the base, the
basal lobe short, narrowly truncate at tip; scutellum very flat and smooth,
quadrate, as wide as long; elytra but little longer than wide, a fifth or sixth
wider than the prothorax, the humeri rounded almost in continuation with
the sides of the elytra, not prominent; discal striz wholly obsolete and un-
traceable, the outer marginal alone visible, as in the preceding, and somewhat
similar; sides of the hind body with nearly similar very large though shallow
punctures beneath; tibize almost similar. Length 1.65 mm.; width 1.15 mm.
Brazily(Santarem))) One specimen, «ui: 2's a4 cise cane = vernicatus n. sp.
4—Outline almost regularly oval, the humeri barely visibly prominent and broadly
rounded, deep black; beak rather thick, subcylindric, feebly arcuate, not
quite as long as the prothorax, loosely punctate, more finely above; pro-
thorax just visibly wider than long, the converging sides feebly arcuate, more
rounding anteriad, the apex feebly subtubulate and two-fifths as wide as the
base; inferior flanks with punctures in the large anterior and posterior im-
pressions; basal lobe small, with a few punctules, the apex narrowly truncate;
scutellum very small, quadrate, slightly impressed medio-posteriad; elytra
slightly elongate, a sixth wider than the prothorax, parabolic in form, with
strongly, evenly arcuate sides; discal striae extremely fine, nearly obsolete,
though easily traceable, more evident basally, 1, 9 and 10 deep and distinct,
the two outer catenulate; under surface rather coarsely but loosely punctate;
hind femora with a small inferior denticle and also a few very minute serrules;
tibiz slender, with a sharp prominent external tooth at some distance from
the base; first ventral not much swollen, densely but not quite so coarsely
punctate as usual. Length 2.2 mm.; width 1.3 mm. Brazil (Santarem).
We! Specimen eesti ees cin Sh oes ec seiner re Pw erebeucnsuers conjux n. sp.
Outline less evenly oval, more attenuate behind and smaller in size, similar in its
deep black color and in sculpture throughout, except that the discal elytral
striz are still more completely obsolete, the sutural stria finer, the two lateral
similar; beak nearly similar; prothorax almost similar but a little shorter,
the sides subevenly and more strongly arcuate; basal lobe narrowly truncate
at the middle of the apex; scutellum still smaller, quadrate, somewhat more
impressed longitudinally; elytra slightly elongate and a little wider than the
prothorax, much less oval and more triangular in form, the oblique sides
much less arcuate and the apex more narrowly rounded; femora with a
similar sharp inferior denticle just behind the middle, and also several very
minute serrules, the external tooth of the tibie similar in position but very

74 MEMOIRS ON THE COLEOPTERA

- much smaller and less prominent. Length 1.9 mm.; width 1.15 mm. Brazil
(Santarem). ‘One specimen. 9) (2 Se een eee speculum n. sp.
Outline more elongate and less regularly oval than in conjux, the feeble subapical
elytral prominences giving a more subtruncate disk when viewed antero-
posteriad, black, highly polished, the prothorax obscure rufous above; beak
thick, feebly arcuate, subcylindric, three-fourths as long as the prothorax,
very finely, not densely punctate; antennal club not very slender, as long as
the preceding six joints; prothorax barely wider than long, the sides less than
usually converging from the base, broadly arcuate, gradually slightly more
so beyond the middle, the scarcely tubulate apex wider than usual, fully half
as wide as the base; rather coarse sparse punctures extend throughout the
lower part of the inferior flanks; basal lobe moderate, evenly rounded, nearly
smooth; scutellum minute, subquadrate, feebly, medially impressed; elytra
a fifth wider than the prothorax and fully a fourth longer than wide, with
slightly prominent humeri, ogival, with narrowly rounded tip; discal striz
obsolescent, I, 9 and 10 deep but not very coarse, 9 obsolescent in basal two-
fifths; first ventral slightly swollen, coarsely, closely punctate; femora not
spiculate beneath, the tibiae rather slender, flattened and feebly fluted,
obliquely and narrowly truncate at base, the external angle obtuse but sharp,
not at all prominent. Length 2.2 mm.; width 1.18 mm. Brazil (Chapada).

March:! (One@examipleryin 02), Src Sue ee ae ee Cee docilis n. sp.
5—Upper surface not evidently bicolored: 2.4. 6. sees seas eee eee ee eee 6
Upper‘surface! more or fess distinctly. bicolored?. ic Jn). 8 0s Shee ee ee 8

6—Body piceo-rufous throughout, the legs and beak darker, nearly black. Form
broader, oval; beak rather slender, uniformly cylindric, feebly arcuate,
three-fourths as long as the prothorax, finely, rather closely punctate, the
antennal club oval, as long as the preceding six joints; prothorax a fifth
wider than long, the converging sides moderately and subevenly arcuate to
the feebly constricted apex, which is barely two-fifths as wide as the base;
surface with minute and sparse punctures at the sides, which become strong
and rather dense throughout the inferior flanks; basal lobe moderate, evenly
rounded, with numerous moderate punctures; scutellum minute, quadrate,
impressed; elytra barely at all longer than wide, obtusely and evenly oval,
scarcely a fifth wider than the prothorax, the humeri very broadly rounded;
strie fine, becoming obsolescent but more punctate laterad, the two lateral
moderately coarse and catenulate; legs strongly punctured; hind tibie
with the external tooth high and acute. Length 2.0 mm.; width 1.4 mm.
Brazil (Chapada): March) One speciments.) oe eee piceolus n. sp.
Body black throughout, the elytra very faintly picescent, subrhombic-oval; beak
thick, arcuate and compressed, slightly shorter than the prothorax, shining,
finely, sparsely punctate, the reéntrant angle at the base distinct; prothorax
slightly shorter than wide, the converging sides nearly straight to a little
beyond the middle, becoming gradually and feebly arcuate anteriorly, the
feebly constricted apex less than half as wide as the base; surface finely,
remotely punctulate, but little more evidently so toward the sides, rather
strongly but loosely on the inferior flanks; basal lobe moderate, feebly sinu-
ato-truncate medially at tip; scutellum small, quadrate and flat; elytra
parabolic, but with rather feebly arcuate oblique sides, a fifth longer than
wide, nearly a fourth wider than the prothorax, with rather evidently prom-
inent humeri; striae toward the suture fine but distinct, subobliterated
elsewhere, 9 and 10 rather coarse, catenulate; hind tibize with the external
angle at base sharp and slightly prominent. Length 2.1 mm.; width 1.35
mm. Brazil (Santarem). One specimen... /serenus n. sp.
Body black throughout, or with the pronotum barely visibly piceous in tinge..7
7—Form much more narrowly and more rhombic oval, deep black and very

BRAZILIAN BARINZE 75

smooth; beak rather thick, slightly compressed and arcuate, closely sculp-
tured, nearly as long as the prothorax, the latter but little wider than long,
the converging and feebly arcuate sides gradually somewhat more arcuate
and converging anteriad, the apex two-fifths as wide as the base; inferior
flanks strongly, loosely punctate, more so in the depressions, the punctures
extending upward slightly onto the pronotum; basal lobe small, with a few
fine punctures, the rounded apex having a small but abrupt and distinct
median sinus; scutellum minute, subquadrate, feebly impressed medio-
posteriad; elytra obtusely parabolic, having distinctly arcuate sides and
scarcely at all prominent humeri, a little longer than wide and a sixth wider
than the prothorax; striz very fine, becoming obsolete but more punctured
laterally, though obsolete basally, the two lateral rather coarse and catenu-
late; legs somewhat short, not coarsely, rather loosely punctate, the femora
simple, the hind tibiz slender, scarcely half as wide as the femora, the ex-
ternal angle at base sharp and slightly prominent. Length 1.6-1.75 mm.;
width 1.05-1.1 mm. Brazil (Santarem). Three specimens... ..nanus n. sp.
Form and general characters nearly as in manus, but still narrower, subrhombic-
oval, not quite so uniformly deep black, the pronotum with a barely per-
ceptible piceous tinge; beak thick, feebly arcuate, not quite as long as the
prothorax and strongly, closely sculptured; prothorax very little shorter
than wide, the sides very moderately converging and scarcely arcuate, be-
coming rather more rapidly rounding and convergent beyond the middle
than in the preceding; punctures at the extreme sides and thence down the
inferior flanks similar but closer; basal margin and lobe with rather numerous
smal! punctures, not evident in manus; lobe small, distinctly and sharply
sinuate at tip; scutellum not quite so minute, subquadrate and flatter;
elytra narrower, more distinctly elongate and nearly a fifth wider than the
prothorax, parabolic, the humeri similarly continuing the curvature of the
sides; strie similar, the lateral more punctulate strioles obsolete basally;
outer angle at base of the hind tibia very acute and slightly more prominent.
Length 1.6 mm.; width 0.92 mm. Brazil (Chapada—forest). November.
@irevexennnipy] Cope eee ke otis, cag eae Sasa ee ns ck Pian A hd Soa fractus n. sp.
Form and organization nearly as in the two preceding, the three forming a natural
section of the genus, larger and stouter than fractus, deep polished black
throughout, similarly subrhombic-oval; beak thick and strongly sculptured,
not as long as the prothorax; head with a broad polished furrow along the
upper margin of the eyes, wanting in fractus; prothorax similar in general
form and sculpture, but larger and broader, and without the line of punctures
along the basal margin; lobe even smaller and narrower, with the abrupt
deep apical sinus a little larger; scutellum somewhat larger and differing
much in being elongate and narrow, impressed medio-apically; elytra longer
and broader, not so decidedly elongate, ogival, with similarly arcuate sides
but relatively more narrowly rounded apex; basal proportions similar; stri-
ation similar, excepting that the strie laterally are obsolete throughout,
and that the two outer are deep, smooth, grooved and not at all catenulate;
legs nearly similar, the outer basal angle of the tibiz finely aciculate, though
not quite so prominent. Length 1.9 mm.; width 1.2 mm. Brazil (Chapada).
March i Onerspecinnienniarsceactensrettn soo niiaeslcenieue cts sistas oe le oe fretus n. sp.
Form more obtusely oval, the prothorax more conical and with no punctures at
the sides of the upper surface, the head differing from any preceding in having
a large deep perforate excavation, like that of Melanolia foveiceps, cavifrons
and parviscutis; beak thick, arcuate, strongly sculptured and shorter than
* the prothorax, which is about a fifth wider than long, with the sides more con-
verging from base to apex and feebly, subevenly arcuate, the apex narrower,
but little over a third as wide as the base; coarse punctures of the inferior

76 MEMOIRS ON THE COLEOPTERA

flanks not extending quite to the obtuse lateral pronotal edge; basal lobe
small, smooth, more shallowly sinuate at apex; scutellum very small, sub-
quadrate, nearly flat; elytra more broadly and obusely rounded behind,
parabolic, almost a fourth wider than the prothorax, only a little longer than
wide, the humeri not prominent; striz very fine, obsolete laterally, the two
marginal moderate, the inner only visible toward apex; outer basal angle of
the hind tibiz acute but not very prominent. Length 1.8 mm.; width 1.15
mm. Brazil (Chapada). November. One specimen....breviusculus n. sp.

8—Color dark; basal thoracic lobe rounded at tip; elytral striae moderate... ...g
Color testaceous; basal lobe truncate at tip; elytral striae broad but very shallow
and) catenullatescrapats: pecs se a pot ute coy ner del at AVA eee eae tO

9-—Body more narrowly oval, especially in the female, polished, black, the pro-
thorax obscure rufous; beak differing in the sexes; notably slender and
cylindric, evenly and somewhat strongly arcuate, almost as long as the
prothorax and rather strongly sculptured (@); or a little shorter, notably
stouter and even more sculptured (co); prothorax slightly wider than long
(), about as long as wide (@ ), the sides moderately converging and feebly
arcuate, a little more so anteriad; apex only feebly constricted, nearly two-
fifths as wide as the base; punctures of the inferior flanks strong but separated,
entering the pronotum for a slight distance but becoming very fine and still
sparser; basal margin with an irregular series of distinct close punctures, the
lobe moderate, very evenly but narrowly rounded at tip; scutellum notably
minute, subquadrate and roughly, densely sculptured; elytra slightly elon-
gate, between a fifth and sixth wider than the prothorax, with but feebly
prominent humeri, the outline parabolic, somewhat narrower in the female;
striz rather deep but becoming feeble and more punctulate laterally, the outer
two moderately coarse, very approximate postériad; under surface strongly
and closely punctured throughout; outer hind tibial tooth acute and tri- .
angular. Length 2.0-2.15mm.; width1.2mm. Brazil (Chapada). March.
As SUIS ION Mai aig yt helalerc w aiecahaps wade ey eae AR es poe es flaccidus n. sp.

Body stouter and more rhombic; coloration above as in the preceding, the pro-
notum even more obscure, the entire under surface obscure rufous, the legs
black; beak rather slender, arcuate, as long as the prothorax, strongly
sculptured; prothorax larger, a fifth wider than long, the sides rather more
convergent, feebly arcuate, more so anteriad, the apex narrower, less than
two-fifths as wide as the base; coarse punctures of the inferior flanks in-
vading the pronotum more narrowly, but with the punctures coarser than
in flaccidus; basal marginal punctures nearly similar, the lobe somewhat
more obtusely rounded and with the lateral impressions—wanting in flaccidus
—rather evident; scutellum less minute, quadrate, smooth and feebly
concave; elytra nearly similar in proportions but with the arcuate sides
more rapidly converging to the distinctly narrower apex; humeri even less
prominent; striz almost similar and evidently punctulate; densely punctate
under surface and the tibie nearly similar, the finer punctures of the met-
episterna in a single series and not broadly confused as in flaccidus.
Length 2.2 mm.; width1.4mm. Brazil (Chapada). March. One female
(>: 001 0) (cae ies. 5 hc Ey ree TR eee ee Res a eee ae congruens n. sp.

Body stout and slightly more abbreviated, deep black throughout, the pronotum
obscure rufous; beak rather slender, evenly and somewhat strongly arcuate,
strongly sculptured and as long as the prothorax, the latter nearly as in
congruens in form, much larger than in flaccidus, but punctured throughout
in nearly the same way toward the sides and along the base, a fifth wider
than long; basal lobe a little broader than in flaccidus and evenly rounded,
without lateral impressions; scutellum about as minute as in the latter,
with a few punctures, much smaller and less smooth than in congruens;

BRAZILIAN BARINE v4

elytra as in the latter throughout, though slightly shorter and rather more
obtuse behind, the two lateral striz a little coarser, the legs nearly similar.
Length 2.15 mm.; width 1.35 mm. Brazil (Chapada). March. One female.
perplexus n. sp.
10—Form narrowly subrhombic-oval, the prothorax very pale and bright rufous
above and beneath, the elytra and hind body slightly less pale testaceous,
the head, beak and legs piceous; beak only moderately thick and arcuate,
strongly sculptured and scarcely shorter than the prothorax; head evenly
convex, without trace of frontal fovea; prothorax as long as wide, the sides
moderately converging and nearly straight, rounding and more convergent
beyond the middle, the feebly tubulate apex three-sevenths as wide as the
base; surface very finely, sparsely punctate, the punctures gradually some-
what stronger but still sparse laterally, becoming coarse and close on the
inferior flanks; basal series coarser, the lobe small, sinuato-truncate; scu-
tellum small, quadrate, finely punctulate and nearly flat; elytra slightly
elongate, a sixth wider than the prothorax, ogival, with rather obtusely
rounded apex, the humeri but slightly prominent, broadly rounded; strie
rather coarse but shallow, distinctly punctulate, 7 and 8 subobsolete but
with distinct punctures, 9 and 10 moderately deep, catenulate; intervals
with some infinitesimal punctules in single series; hind tibiz with the external
angulation at base sharp but not prominent. Length 1.75 mm.; width
0.9 mm. Brazil (Chapada—forest). November. One specimen.
defectus n. sp.
11—Body obtusely suboval, deep black throughout, the elytra very obscure rufo-
piceous. Beak moderately thick, arcuate and strongly not very densely
punctate, fully as long as the prothorax, the latter only a sixth wider than
long, the sides converging very moderately and evenly arcuate from base to
the feebiy subtubulate apex, which is two-fifths as wide as the base; minutely,
remotely punctulate, with a narrow smooth median line, the punctures
gradually coarser and closer laterally, strong and close on the inferior flanks;
basal lobe moderate, sinuato-truncate, the lateral impressions small but
obvious; scutellum small, quadrate, nearly smooth and slightly concave;
elytra but little longer than wide, oval, not sharply rounded at apex, a
sixth wider than the prothorax, the humeri broadly rounded and but slightly
prominent; grooves not very coarse but notably deep, abrupt and smooth,
7 and 8 finer, though very distinct, punctulate; external hind tibial angle
very acute and slightly prominent. Length 1.7 mm.; width1.1 mm. Brazil
(Santarem)-telOnesspecinenes era .e teed. 0c eels ss Heine aaa oh vapidus n. sp.
Body bicoloned: thegmrothorax matOUs. 21.6). 5 sc) ood cpletece costo blue shel ne eke Pine 12
12—Form oval, with feebly marked and broadly rounded humeri, black, the
entire prothorax rufous; beak rather thick, feebly arcuate, strongly sculp-
tured and not quite as long as the prothorax, which is very nearly aslong as
wide, the sides feebly converging and nearly straight, gradually rounding
and more converging beyond the middle, the subtubulate apex three-sevenths
as wide as the base, the lobe abrupt, very obtusely rounded and with stronger
punctures; surface finely and sparsely punctate, without smoother line, the
punctures gradually stronger but scarcely less remote laterally, becoming
coarse and very dense at the extreme sides and throughout the inferior flanks;
scutellum very small, quadrate, nearly smooth and concave; elytra slightly
elongate, ogival, with narrowly rounded apex and very moderately arcuate
sides, between a fifth and sixth wider than the prothorax, the grooves rather
coarse, deep, finely punctate along the bottom, 7 and 8 but slightly less
coarse; intervals even, somewhat concave, each with a series of minute and
widely spaced punctules; hind body beneath less coarsely punctate than
the propleura; outer hind tibial angle at base very acuteand slightly prom-

78 MEMOIRS ON THE COLEOPTERA

inent. Length 1.9 mm.; width 1.15 mm. Brazil (Chapada). August.
; Qhe Specimen. crcl: 2 <haoatleeud 6 BCE ee ae eee trepidus n. sp.
Form narrower, more rhombic-oval, the humeri slightly more prominent, obscure
rufous, the prothorax a little brighter; entire surface shining, though feebly
micro-reticulate; beak rather slender-and arcuate, much longer, even some-
what longer than the head and prothorax, finely, not very densely punctate,
the antenne normal; prothorax somewhat shorter than wide, the moderately
converging sides feebly and subevenly arcuate throughout, but little more
so near the scarcely subtubulate apex, which is fully half as wide as the
base, the lobe moderate, somewhat sinuato-truncate at apex; surface finely,
remotely punctate, with smooth median line, the punctures gradually a little
coarser and less remote laterally and rather coarse and close throughout the
inferior flanks; a dorsal series along the base is also more distinct, as in the
preceding; scutellum minute, quadrate, wider than long and feebly concave;
elytra nearly as in trepidus but with the sides somewhat less converging and
the apex a little more broadly rounded; grooves smooth and deep, 7 and 8
evidently finer and more punctulate; intervals flat, nearly smooth; hind
tibiae similar. Length 1.65 mm.; width 0.9 mm. Brazil (Chapada).
November: “Onesspecimeny. . shine © sat sens cede nee trivialis n. sp.

The almost identical form of the head in breviusculus, with its
conspicuous abrupt and very deep cavity, to that of the species of
Melanolia mentioned above, together with similarities of general
organization, especially tibial, antennal, prosternal and abdominal,
shows that there is probably no real generic difference between
Melanohia and Hiotopsis, but the distinction here made is at least
useful taxonomically, as becomes evident on casual inspection of
the two series, which contrast so greatly in size and shape of the
body.

Group IV.

Subgenus Spermidius nov.

Four aberrant minute species are here regarded as forming a
subgeneric group, although they include four rather isolated types
of structure; they all agree, however, in the general characters of
the tribe, and, among themselves more especially, in having the
outer contour of the hind tibiz evenly arcuate basally, without
trace of the truncature and acute angle or tooth of the preceding
subgenera, resembling the singular Idiopsida in this respect. Their
special characters are brought out more definitely in the following
descriptions:

Sutural stria prolonged outwardly at base, the surface between the suture and
stria upwardly oblique from the suture basally; discal striz wholly obsolete.
Body narrowly subrhombic-oval, deep black and polished, the entire pro-
thorax dark rufous, the elytra darker piceo-rufous; beak thick, feebly
arcuate, as long as the head and prothorax, somewhat compressed and
strongly but not densely sculptured, finely and sparsely so above; antennal
club long and rather slender; prothorax nearly as long as wide, the sides
distinctly converging and straight, gradually and slightly rounding anteriad

BRAZILIAN BARINA 79

to the scarcely constricted apex, which is almost half as wide as the base;
entire surface, as well as the inferior flanks, very smooth and impunctate;
basal lobe moderate, smooth, rather narrowly rounded; scutellum minute,
flat, not very smooth, slightly longer than wide; elytra evidently elongate,
parabolic, only slightly wider than the prothorax, the humeri not prominent;
sutural stria rather fine, but, basally and outwardly, becomes distinctly
carinated, the ninth distinct, catenulate, the tenth very fine and nearly
smooth though evident; under surface of the hind body strongly, loosely
punctate; tibia very slender; abdomen rather tumid at base. Length
2.0 mm.; width 1.2 mm. Brazil (Santarem). One specimen.
suturalis n. sp.
Sutural stria simple, not prolonged outwardly at base................-..-.-. 2
2—Discal striz of the elytra obsolete, the surface very smooth; body minute
in size. Piceous throughout, the entire body above and below very smooth,
polished and wholly impunctate; beak rather thick, arcuate, slightly com-
pressed, as long as the prothorax, rather strongly punctate at the sides,
minutely and sparsely above, with a moderate transverse impression at base;
prothorax slightly shorter than wide, the converging sides straight, arcuate
in apical two-fifths, the unconstricted apex not half as wide as the base;
basal lobe very small, short and evenly rounded; scutellum very minute,
subquadrate, smooth, its broadly sinuate apex a little wider than the base;
elytra nearly a third longer than wide, a fifth wider than the prothorax,
narrowly ogival, with but feebly arcuate converging sides and narrowly
rounded apex; sides becoming parallel and broadly arcuate in about basal
third; striz obsolete, the sutural very fine, 9 and 10 obsolete, except abruptly
near the apex, where they become coarse, equal and strongly catenulate;
legs rather thick, coarsely, roughly punctate, each puncture with a coarse
subdecumbent seta, the seta numerous at the tibial apex. Length 1.4
mm.; width 0.75 mm. Brazil (Santarem). One example. .. minutus n. sp.
Discal striz strong and relatively coarse; body but little below the average size
in Hiotopsis; basal thoracic lobe with a strong isolated puncture at each
TA Sead TOU cen ted or ere eae gn sug sy ens © See Rr eae Sieds agere ania a8 2
3—Body oval, polished and deep black throughout; beak rather thick, strongly
arcuate, subcylindric, a little shorter than the prothorax, coarsely, longi-
tudinally sculptured, more finely but not very sparsely above, the transverse
basal impression deep; prothorax almost a fourth wider than long, the
converging sides straight, rather rapidly arcuate beyond the middle, the
apex feebly constricted, half as wide as the base; surface with only the
usual remote and microscopic punctulation, but, at the extreme sides, with
rather strong sparse punctures, continuing down the inferior flanks; basal lobe
moderate, truncate medially at tip; scutellum minute, quadrate, smooth,
somewhat longer than wide; elytra oval, only a little longer than wide,
barely a sixth wider than the prothorax; apex somewhat narrowly rounded;
humeri not at all prominent; inner striae deep and groove-like, the outer
extremely fine and obsolete, but with the minute punctules evident, 9 and
10 somewhat coarse, catenulate; legs with rather small but strong punctures,
sparsely and inconspicuously setulose. Length 1.7 mm.; width 1.0 mm.
Brazil (Chapada—forest). November. One specimen...... stygialis n. sp.
Body more rhomboidal, the more prominent subapical elevations of the elytra
giving a subtruncate discal appearance when viewed antero-posteraid, this
rather more evident than in the preceding; color deep black, the elytra
bright rufous, shaded slightly at base and black at apex; beak very thick
and compressed, strongly arcuate above, nearly straight beneath, rather
longer than the prothorax, the basal transverse impression broad and shallow;
sides strongly punctured and furrowed, the upper surface more finely but

80 MEMOIRS ON THE COLEOPTERA

rather closely punctured; prothorax between a fourth and third wider than
long, the strongly converging sides feebly, subevenly arcuate to the sub-
tubulate apex, which is more than half as wide as the base; surface and
flanks nearly as in the preceding; basal lobe moderate and truncate, with
about two punctures near each oblique edge, the lateral impressions at base
feeble but evident, wanting in stygialis; scutellum minute, subquadrate,
the sinuate apex somewhat wider than the base; elytra internally with rather
wide but shallow, catenulate striz, obsolete but with evident series of minute
punctures laterally, 9 and Io distinct, catenulate; legs strongly but loosely
punctate, feebly setulose. Length 1.7 mm.; width 1.1 mm. Brazil (Entre
Rios), “September. ,Onespecimetins sc. 2 3.045 sree semiruber n. sp.

All of these species have peculiarities of form or sculpture that
will enable them to be recognized easily if rediscovered, but there
are probably scores still undiscovered; minutus is one of the smallest
species of the entire subfamily.

Group V.

Subgenus Hiotomicrus nov.

Two species are separated below under this subgeneric name,
primarily because of the relatively smaller antennal club, which is
however oval and subequally segmented, the first segment very
much less than half the mass. There are, however, several other
peculiarities, such as the subobliterated suture between the meta-
sternum and met-episterna, smooth flat abdomen, at least in the
type, and slender, apically bent and often serrulate femora. The
hind tibie are rounded on the external edge basallyas in Spermidius.
The type is the first described below:

Form elongate-suboval, polished and smooth, black, the legs and elytra more or
less piceous; beak rather thick, arcuate, scarcely compressed, strongly,
sparsely punctate, finely and remotely so above, and as long as the prothorax,
the transverse basal impression deeply anguliform, the head impunctate;
antennal club scarcely more than half as long as the funicle; prothorax
slightly shorter than wide, the converging sides nearly straight to apical
third, there abruptly angulate and thence oblique and straight to the wholly
unconstricted apex, which is nearly half as wide as the base; surface and
inferior flanks impunctate, the basal lobe small and feeble, rounded, simple;
scutellum very small, oblong, smooth; elytra two-fifths longer than wide,’
but little wider than the prothorax, the sides parallel basally, thence oblique
and barely arcuate to the very narrowly rounded apex; striz obsolete, the
surface very smooth, the sutural stria very fine and feeble, 9 and Io obsolete,
but suddenly becoming coarse, shallow and catenulate posteriad; under
surface very smooth, the first two abdominal segments flat, polished and
impunctate, the others each with a transverse line of small remote punctures;
legs slender, the femora deflexed at apex, coarsely, rugosely sculptured and
setulose. Length 1.7 mm.; width 1.0 mm. Brazil (Santarem). One
SPECIMEN ecd at carte eae ean ene emt ROE eu a eee ge ea leviventris n. sp.

Form narrowly oval, attenuate behind, shining black, the legs and elytra piceous;
beak moderately stout and sculptured, arcuate, subcylindric, shorter than
the prothorax, the antennal club as in the preceding; prothorax nearly as

BRAZILIAN BARIN 8I

long as wide, the converging sides straight, slightly rounding in about apical
third, the subtubulate apex half as wide as the base; entire surface above
and beneath very smooth and impunctate; base margined by a fine irregular
line, the lobe small, narrowly rounded at tip; scutellum minute, subparallel,
slightly elongate, sinuato-truncate and smooth; elytra fully a third longer
than wide and gradually attenuate, with but feebly arcuate sides and very
narrowly rounded apex, the sides anteriorly parallel and broadly arcuate;
strie rather fine but distinct, catenulate, merely a little finer laterally, 9 and
10 broad, entire and strongly catenulate; mes-epimera longitudinally ridged,
impunctate; metasternum and side-pieces smooth, having internally an
arcuate series of very large shallow fovee, the suture subobliterated; legs
coarsely and strongly sculptured and evidently setose; hind femora slender,
arcuate at apex, having beneath a few sharp serrules, the tibie slender,
fluted. Length 1.8 mm.; width 1.15 mm. Brazil (Santarem). One speci-
AIRC hispanic eet Uae ech Whee ah Cet triove te aed cre Ss aps 3 acutipennis n. sp.

The rather distinct striation and basal pronotal line of acutipennis
will distinguish it at once from /@viventris, although the general
form and the narrow attenuate elytra posteriorly are very nearly
the same; the base of the abdomen is hidden in the type of acuti-
pennis.

Genestus n. gen.

A separate genus seems to be necessary for a rather small species,
having a very peculiar rostrum, this being strongly arcuate, very
slender, equally thin and cylindric from base to apex and projecting
from the lower part of the head, almost exactly as in Costovia of
the Optatini, or as in Balaninus; but here, the mandibles are
dentate and decussate as in Diorymerus. The antenne are inserted
even behind basal third, with the narrow, elongate-oval and some-
what compact club about as long as the preceding six joints. The
prosternal sulcus before the coxe is very deep and abruptly formed,
more than capable of receiving the basal part of the beak, the
femora rather slender but sulcate beneath as usual, and the tarsal
claws slender, arcuate, free and diverging. The type is the fol-
lowing:

Genestus filirostris n. sp—Body moderately stout, sharply rhomboidal, the
subapical elevations of the elytra giving a discal truncation when viewed antero-
posteriad, shining, piceous-black, rufous above, the elytra piceous except toward
the humeri; beak as long as the head and prothorax, finely, sparsely punctate,
the head strongly and closely so throughout; prothorax more than a fourth wider
than long, having strongly converging sides, moderately and subevenly arcuate
from base to tubulation, which is well marked and two-fifths as wide as the base;
surface very smooth, minutely punctate at apex, more coarsely on the basal lobe
and less so along the basal margin, also sparsely at the lateral edges and more
coarsely down the inferior flanks; basal lobe strong, rounded, with a rather deep
sinus at the middle of the apex; scutellum moderate, as long as wide, feebly
trapezoidal, flat and closely punctate; elytra but little longer than wide, a fourth
wider than the prothorax, rapidly parabolic, the humeri prominent and only
narrowly rounded; striz all distinct, remotely punctulate, finer laterally, 9 and
10 but little stronger, somewhat less punctate, the sutural dilated and catenulate

T. L. Casey, Mem. Col. X, Aug. 1922.

82 MEMOIRS ON THE COLEOPTERA

basally; abdomen tumid and strongly sculptured at base as in Hiotus; femora
slender, simple, strongly punctate; hind tibize somewhat fluted, having, on the
outer edge near basal third, a very abrupt acute denticle, the basal slope of which
has about two minute serrules. Length 2.7 mm.; width 2.1 mm. Brazil (Cha-
pada). March. One specimen.

The humeral prominences of the elytra, distinctly posterior to
the base, are more acute and angulate than in any of the forms of
Diorymerus or Hiotus known to me.

A small half dozen lot of Mexican and Central American Diory-
merides in my collection, forms an interesting addendum to the
preceding taxonomic studies of the Brazilian species. They are all
small and only one of them is a Diorymerus; it may be described
as follows:

Diorymerus vestigialis n. sp.—Almost evenly oval, the humeri very broadly
rounded and scarcely at all prominent, deep polished black throughout; beak
thick, compressed, distally arcuate, scarcely three-fourths as long as the prothorax,
rather closely punctate, finely so above; head finely, sparsely punctate; antennal
club of the usual form, cylindric-oval, compact and as long as the funicle; pro-
thorax but slightly wider than long, the strongly converging sides evenly and
distinctly arcuate, the subtubulate apex less than half as wide as the base; surface
evenly convex, very smooth, the lower part of the inferior flanks with coarse and
sparse punctures; basal lobe strongly rounded and with a few small punctures,
the apex having a minute feeble angulate sinus, the lateral basal impressions
distinct but not deep; scutellum moderate, flat, quadrate, with a few very minute
punctures; elytra slightly longer than wide, a fifth wider than the prothorax,
oval, rather obtuse behind; striz excessively fine and subobsolete, remotely
punctulate, the sutural only a little coarser but with coarser punctures, the latter
visible basally also in other striae; femora parallel; hind tibiz obliquely rounded
externally toward base, the distal limit of the arcuation bearing an abrupt and
very acute, somewhat oblique spine; first ventral with coarse and sparse punc-
tures, not much impressed medially. Length 4.0 mm.; width 2.7 mm. Guate-
mala (Panzos—500 feet elev.). One specimen.

Probably belongs near /eviusculus Chmp., but differs very much
in the scutellum and doubtless in other characters also. In the
above table of Diorymerus it should be attached to the section
numbered 26, composed of very small and polished completely
black species.

Diorymerus denticulatus Chmp., of which I have a specimen
from the author, belongs to the subgenus Melanolia of Hiotus, and
is closely allied to the species described above as definitus; this
particular section, having internally serrulate hind tibiz, is dis-
tinguished also by having the scutellum medially prominent at the
apical margin; denticulatus has a much smaller and relatively less
laterally rounded prothorax than definitus, and also very differently
sculptured; the tarsal claws are strongly arcuate and widely free.

The following species is also a Melanolia, coming near vulsus, and
having the prothorax much larger and fuller than usual:

BRAZILIAN BARINZ 83

Hiotus (Melanolia) thoracicus n. sp.—Obtusely oval, very deep black and
polished; beak thick, feebly, subevenly arcuate, four-fifths as long as the pro-
thorax, slightly compressed and closely, strongly sculptured at the sides, more
finely and rather closely so above and having a transverse shallow medial impres-
sion at base; prothorax large, a fourth wider than long, the sides strongly arcuate,
becoming more parallel basally, the tubulate apex three-sevenths as wide as the
base; surface very smooth, with a few punctures along the lateral edges, con-
tinued sparsely down the inferior flanks; basal lobe small, sinuate at apex,
having a few small punctures, the lateral impressions distinct; scutellum longer
than wide, feebly enlarged and posteriorly subangulate at apex, smooth and
concave; elytra slightly elongate, only very little wider than the prothorax,
ogival, with narrowly rounded apex, the humeri broadly rounded and but slightly
prominent; strie fine though very distinct and rather conspicuously, somewhat
distantly punctate, the sutural smoother, finely groove-like, 9 and 10 coarse and
deep; legs strongly punctate; outer tibial angle at base sharp but not prominent;
first ventral swollen and coarsely, very densely punctate. Length 3.4 mm.;
width 2.3 mm. Mexico (Vera Cruz). One specimen.

This species is rather closely allied to vulsus, described above,
differing in its basally more parallel prothorax, less pyriform
scutellum and finer striation.

The two following species are entirely typical in the subgenus
Miotopsis:

Hiotus (Hiotopsis) stolidus n. sp.—Oval, black throughout and rather shining;
beak thick, strongly punctate, shorter than the prothorax, which is not quite as
long as wide, with strongly and very evenly arcuate sides from base to the sub-
tubulate apex, the latter rather more than two-fifths as wide as the base; surface
smooth, punctured along the base and also sparsely but strongly near the sides,
these punctures continuing down the inferior flanks; lobe small, its apex very
narrowly rounded; scutellum very small, quadrate, not obviously impressed; |
elytra only slightly wider than the prothorax and barely longer than wide, oval,
with moderately prominent rounded humeri; strie fine but distinct, gradually
feeble laterally, feebly punctulate, 9 and 10 broader but shallow, entire and
catenulate; outer tibial angle sharp but rather obtuse and not prominent. Length
1.9 mm.; width 1.3 mm. Panama and Guatemala. Two specimens.

The specimen from Guatemala seems to be virtually identical,
specifically, with the Panama type, although still stouter in form.
The following is closely allied:

Hiotus (Hiotopsis) zequalis n. sp.—Body oval and very nearly as in the pre-
ceding, polished black, but with the elytra feebly picescent; beak almost similar,
but not quite so thick; prothorax narrower, more nearly as long as wide, the
sides less evenly arcuate, being straighter to about apical third, there gradually
rounding to the subtubulate apex, which is three-sevenths as wide as the base;
sculpture throughout similar, except that the strong lateral punctures are more
nearly confined to the edge, appearing less broadly upon the disk, and that the
basal lobe is more obtuse at apex; scutellum minute, quadrate, smooth medially,
somewhat impressed at apex; elytra nearly similar but narrower and with more
distinct strial punctures; hind tibiz with the external subbasal angle sharp and
slightly more prominent, the tibie a little narrower. Length 1.8 mm.; width
1.2mm. Guatemala. .

84 MEMOIRS ON THE COLEOPTERA

The position of these species among the Brazilian forms may be
judged easily by the characters as given. They are doubtless allied
rather closely to Diorymerus quadristriatus, of Champion, but there
the scutellum is said to be transverse.

The species described by Mr. Champion as Diorymerus erythro-
notus, constitutes another subgeneric group of Hiotus, which may
take the name Hiotidius (n. subgen.). It is distinguished by a
marked peculiarity of the tibiz, these being subtriangular in form,
the outer angle minutely subprominent. The beak is also longer
and thinner, and the first ventral feebly but abruptly flattened
medially. The anterior femora are peculiarly swollen basally.
The species Diorymerus punctatus Chmp., will also form part of
this subgeneric group. Of erythronotus, I have five specimens, ©
taken by Mr. Townsend at Frontera, in Tabasco—the original
locality. They vary in size to an unusual degree. The tarsal
claws are slender, arcuate, free and widely diverging.

Tribe COLEOMERINI.

A few generic groups forming this tribe, while allied in certain
features, such as the inferiorly sulcate femora, to the Diorymerini,
differ in some radical peculiarities. The most important of these
differences are the entire form of the body, which has the normal
convexity of the subfamily, not at all similar to the high vaulted
profile seen in all the Diorymerini, and the form of the pectoral
canal, which is not confined to the ante-coxal part of the prosternum,
as in that tribe, but extends posteriorly into the mestasternum,
except in Cryptobaris, forming a closed receptacle for the beak
when retracted, somewhat as in the Coelonertini, which follow, and
in the subfamily Cryptorhynchine, except that in the Coleomerini
the channel posteriorly, though sharply defined, is notably shallow.
The floor of this canal is made up of a rather complex arrangement
of the sclerites, the sutures all distinct. The body is briefly oval,
generally—but not always—glabrous, the sculpture usually feeble
and sparse though sometimes dense and conspicuous. The man-
dibles are always prominent, straight and attenuated, and come
together on a perfectly straight line, as in typical Centrinini. The
tarsal claws are always slender, arcuate, free and divergent.

The five following genera are founded upon peculiarities of the
antennal club, form of the hind femora, sculpture, relative degree
of separation of the eyes and some other differential features:

Eyes morelor less approximaterbove.. 2+. veces oe eee eee eee 2
Eyes well'separated femoranot at allintlatedsa. + oss are eee 4
2—Antennal club larger, nearly as long as the preceding six joints, ovoidal,
asymmetric and solid, the sutures very fine and indistinct; hind femora not
inflated; eyes separated above by a little more than half the width of the

BRAZILIAN BARIN 85

beak, the intervening surface concave; elytral striation very feeble and
subobsolete; elytra bicolored. [Type E. nigricauda nov.]....Eucoleomerus
Antennal club small, oval, symmetric, truncate at base, with distinct sutures,
the basal segment half the mass or more; eyes large, usually more approxi-
mate on the front; body generally deep black throughout, polished and

onlyteebly, ‘sculpted: seers ae a alnts or teas ne eek eae Ase 3
3—Hind femora but feebly swollen, shining and with well separated punctures;
strial intervals flat. [Type C. ebeninus Gyll.—Antilles]........ Coleomerus
Hind femora greatly dilated and ovoidal, densely sculptured as a rule; strial
intervals strongly costate. [Type H. chapadanus nov.]......... Harotreus

4—Antennal club very small, symmetric, truncate at base, obtusely pointed,

with deep sutures, the basal segment two-thirds the mass; beak rather

short; interocular surface unmodified; pronotum more sloping anteriorly

than in Coleomerus, the prothorax more developed; body stout, oval, pol-
ished, glabrous and feebly sculptured. [Type A. rufofasciatus nov.]

Acoleomerus

Antennal club not quite so small and more oval, nearly as in Coleomerus; beak

longer; eyes still smaller, the front unmodified; body oblong-suboval, duller

and strongly, densely sculptured, sparsely squamulose, the squamules form-

ing single suberect series on the strial intervals; pectoral canal not entering

the metasternum. [Type C. sulcata*nov.]..............05... Cryptobaris

Cryptobaris is not allied to the Central American Coleomeropsis
Chmp., for in that genus the scutellum is said to be minute, while
in Cryptobaris it is rather well developed, wider than long, flat and
broadly sinuate at apex; Coleomeropsis is also said to have the
tarsal claws connate at base, which with the entirely prosternal
canal and some other published characters, leads me to believe
that it is more closely related to Celonertus than Coleomerus.

Eucoleomerus n. gen.

The upper surface in this genus has a very peculiar but remark-
ably constant form of ornamentation. The antennal club differs
from anything else known in the tribe. The only two known
species are the following:

Body very broadly oval, polished, deep black, the elytra pale brownish-yellow,
abruptly deep black in posterior two-fifths discally, but rather more than
half at the side margins; beak cylindric, arcuate, moderately thick, finely,
sparsely punctate, with prominent flattened mandibles; the beak is as long
as the head and prothorax and distinctly flattened distally (9), or not quite
so long and less flattened distally (o’); antenne medial, the funicle rufous;
club blackish, with minute and dense grayish vestiture; prothorax transverse,
nearly two-thirds wider than long; sides subinflated and arcuate basally,
more oblique and straighter distally, the unconstricted and rectilinearly
truncate apex two-fifths as wide as the base; surface smooth, with very
inconspicuous sparse punctulation, the lateral edges well defined and, to-
gether with the entire inferior flanks, strongly, rather closely punctate;
basal lobe broad, very gradual, somewhat narrowly rounded at apex; scu-
tellum a little wider than long, deep black, flat, smooth and subcordiform;
elytra not as long as wide, obtusely ovoidal, fully a fifth wider than the

86 MEMOIRS ON THE COLEOPTERA

prothorax, the strie very fine and subobsolete, the sutural, and 9 and 10,
posteriorly, deeper; strial punctures fine, remote and very feeble; under
surface rather finely, sparsely punctate; abdomen (<’) with a small, rounded
and feeble basal impression, which is finely pubescent, or (@) perfectly
simple and rather convex; legs similar in the sexes throughout, the outer
margin of the tibiz rounded basally. Length 4.2-4.4 mm.; width 2.75-2.9
mm. Brazil (Santarem). Twospecimens............... nigricauda n. sp.
Body more elongate-oval, the coloration and lustre exactly similar, except that
the pronotum is very obscure rufo-piceous and not intense black; beak and
antenne nearly similar; prothorax less transverse, only slightly more than
one-half wider than long, similarly sculptured, except that the fine and
sparse punctures of the pronotum are much deeper and more distinct; basal
lobe more broadly rounded; scutellum similar; elytra fully as long as wide,
a fifth wider than the prothorax, broadly and obtusely oval, the feeble
humeral callus with slightly darker coloration than the ground, as in the
preceding; strie fine and shallow but very much more distinct than in
nigricauda, the punctures similarly widely spaced but distinctly stronger;
femora strongly, loosely punctate; abdomen (<7) as in the preceding.
Length 4.25-4.5 mm.; width 2.7-2.8 mm. Brazil (Chapada). January
and November. Three male specimens, found on flowers near the forest.
subsimilis n. sp.

It is interesting to note that the abdomen lacks the asexual basal
modifications, which are almost uniformly present in the Diory-
merini, the sexual characters being of the same nature as in the
majority of the subfamily, and this is another very important point
of difference between the two tribes Coleomerini and Diorymerini.
The above two species are undoubtedly very closely allied, but
appear to have become distinctly differentiated by reason of en-
vironmental conditions.

Coleomerus Schon.

The species are rather numerous in this genus, almost uniformly
deep black in color, shining and with deep and rather smooth
elytral striz or grooves and flat intervals. There is no essential
sexual difference in the abdomen, so far as known, this being
strongly and uniformly convex as a rule and finely, remotely and
sparsely punctulate, the first suture extremely fine, the last three
moderately coarse and abruptly reflexed and finer at the sides.
The head, with large, more or less approximate eyes, is very much
as in the Zygopinee. The species at hand are the following:

Elytral grooves rather fine but sharply defined and deep.............0...00 2
Elytral grooves relatively very coarse and deep... .......20:----02ssceecees: 5
2—Eyes separated by half the width of the beak or a little more............. z
Eyes separated by less than half the width of the beak in both sexes.......... 4

3—Body larger in size, broadly oval, deep polished black throughout, nearly
smooth above, strongly and rather closely punctate beneath, finely and
sparsely on the abdomen; beak moderately thick, feebly arcuate, distinctly
though loosely sculptured, as long as the head and prothorax (@), a little

BRAZILIAN BARINE 87

shorter (c’), somewhat flattened distally as usual; antennze medial; front
concave between the eyes; prothorax fully three-fourths wider than long,
the converging sides rounded basally, straighter apically, the truncate apex
three-sevenths as wide as the base; surface with minute sparse punctulation,
becoming a little more evident toward the obtuse and strongly punctate
edges; basal lobe broad and gradual, rounded; scutellum as long as wide,
arcuately triangular; elytra obtusely oval, about as long as wide, slightly
wider than the prothorax, the humeral callus longitudinally somewhat
prominent; grooves smooth, 7 and 8 not extending to the humeri; intervals
very smooth, the second much wider than the third and more than twice as
wide as the first; hind femora but slightly oval, subparallel, moderately and
loosely punctate, with grooved surface inferiorly. Length 3.8-3.9 mm.;
width 2.45-2.6 mm. Brazil (Santarem). Three specimens. .atrolucens n. sp.
Body smaller in size, very regularly oval, deep black and shining throughout,
strongly and closely punctured beneath, except on the abdomen; beak a
little longer than the head and prothorax, finely punctate, carinulate above
basally, the front between the eyes smooth and concave; prothorax one-
half wider than long, the sides converging and strongly, very evenly arcuate
from base to apex—this form unusual in the genus; truncate apex much
less than half as wide as the base, the basal lobe very gradual but only
narrowly rounded at tip; surface smooth, the fine punctulation nearly
obsolete, gradually evident toward the sides; scutellum fully as long as wide,
triangular, with only feebly arcuate sides; elytra as long as wide, very
little wider than the prothorax, parabolic, the humeri but slightly swollen;
grooves abrupt but only moderately deep, finely, remotely punctulate;
intervals minutely, sparsely punctulate, the second but little wider than the
third; femora moderate, with longitudinally anastomosing punctures.
Length 2.8 mm.; width 1.8 mm. Brazil (Para). Desbrochers des Loges.
Onerspecimenteeernty as oe hee ee clear sey te UN one bree eS ellipticus
4—Form rather broadly oval, polished and deep black; under surfaces with the
punctures rather smaller than in the preceding and less close-set; beak
feebly arcuate, rather notably longer than the head and prothorax, finely
punctate; eyes large, narrowly separated; prothorax shorter, fully three-
fourths wider than long, the side strongly converging, subevenly and very
moderately arcuate from base to apex, the latter, as usual, rectilinearly
truncate, about three-sevenths as wide as the base, the lobe smaller, less
gradually formed, rather narrowly rounded at tip; surface very smooth, the
punctulation obsolete; scutellum smaller, rather minute, as wide as long,
arcuately triangular; elytra scarcely as long as wide, evidently wider than
the prothorax, obtusely parabolic, the broadly rounded humeri ieebly and
longitudinally swollen above; stria very abrupt and deep, smooth, the
intervals very smooth, scarcely even micro-punctulate; hind femora loosely
punctate, becoming longitudinally rugulose beneath. Length 2.35-2.65
mm.; width 1.45-1.65 mm. Brazil (Entre Rios). September. Nine speci-
ITIET Sothern ese en es EN, aie BS intermedius n. sp.
Form a little less broadly oval, nearly similar in color, lustre and sculpture;
eyes large, very narrowly separated medially; beak feebly arcuate, not very
slender, notably longer than the head and prothorax, the latter less abbre-
viated, barely three-fifths wider than long, the sides evenly and moderately
arcuate, but less convergent, from base to apex, the latter narrower, only
two-fifths as wide as the base; basal lobe and surface nearly similar; scu-
tellum even more minute, barely as wide as long, obtusely ogival; elytra
almost similar but more obtusely rounded behind, and with the humeri very
slightly more swollen and prominent; groove-like striae deep and smooth,
a little finer than in the preceding; intervals smooth and flat; hind femora

88

MEMOIRS ON THE COLEOPTERA

with longitudinally anastamosing loose sculpture, the tibiz coarsely fluted.
Length 2.45 mm.; width 1.4 mm. Brazil (Chapada). One specimen.
merula n. sp.

5—Prothorax obscurely rufous, the elytra black. Body subrhombic-oval, the

under surface piceous, having moderate and separated punctures bearing
small but distinct decumbent setiform squamules, smaller and sparser on
the abdomen; beak rather thick, feebly arcuate, as long as the head and
prothorax, strongly sculptured at the sides, more feebly above and feebly
subcarinate basally, dilated apically, as usual in the genus, the mandibles
very prominent; eyes separated by rather more than half the width of the
beak, the surface impressed between the hind parts of the eyes; head strongly
and closely punctate; prothorax fully three-fourths wider than long, the
converging sides moderately and subevenly arcuate from base to the truncate
apex; basal lobe gradual, broadly rounded; surface with fine and sparse but
very distinct punctures, gradually stronger and less sparse laterad; scutellum
very small, arcuately triangular; elytra slightly elongate, the oblique sides
feebly arcuate; apex broadly rounded and obtuse; humeri rounded, though
slightly prominent; grooves deep, feebly punctured toward suture and
sides; intervals with scattered minute punctures. Length 2.9 mm.; width
1.6mm. Brazil (Corumba—highland). March. A single male.
rufulicollis n. sp.

Prothorax concolorous, deep black like the remainder of the surface........... 6
6—Body moderate, about 2.5 mm. or more in length....................00- 7
Body rather minute, much under 2-5, mm. in length... 35... 0. -e@ice aaeeee 10

7—Pronotum very smooth, nowhere evidently punctate—even laterally. Form

rather stout, very evenly oval, deep black and highly polished; beak moder-
ately slender, feebly arcuate, much dilated distally, about as long as the
head and prothorax, moderately sculptured, not carinulate; eyes separated
by less than half the width of the beak, the interspace feebly impressed,
foveate posteriorly, the head sparsely punctate; prothorax two-thirds wider
than long, inflated and with arcuate converging sides basally, becoming more
oblique and just visibly sinuate distally, the truncate apex as usual; surface
merely with remote infinitesimal punctulation; basal lobe gradual, rounded
medially, subtruncate at apex, the scutellum moderate, flat and arcuately
triangular as usual; elytra not distinctly longer than wide, evenly and
obtusely parabolic, with evenly rounded and feebly prominent humeri:
grooves coarse, very deep, abrupt and smooth; intervals flat, very smooth
hind femora elongate-oval as usual, loosely punctate, grooved beneath, the
tibiz coarsely fluted; rather coarse and loose punctures of the under surface
without sete as usual. Length 3.15 mm.; width 2.25 mm. Brazil (Santa-
remy) One specimen): 31.00) yon he eae Pee ee levissimus n. sp.

Pronotum with evident punctulation, especially toward the sides.............8
8—Eyes separated by evidently more than half the width of the beak, the inter-

space shining and concave; prothorax very short, much less than half as
long as the elytra. Body rather stout, oval, polished, deep black; beak
fully as long as the head and prothorax or a little longer (@ ), rather sparsely
punctate, minutely so above, where there is no trace of carina, feebly (¢)
or more strongly (<) dilated at apex; head rather finely, sparsely purtctate;
prothorax very nearly twice as wide as long, the entire surface with small
and sparse but distinct impressed punctures; sides converging and distinctly
arcuate, gradually becoming sinuate apically in an exceptional way; trun-
cate apex as usual; basal lobe not very gradual, with its apex very narrowly
rounded; scutellum as in the preceding; elytra barely longer than wide,
parabolic, the humeri slightly prominent and rounded; grooves deep, feebly
punctate along the bottom; intervals minutely and remotely though visibly

BRAZILIAN BARIN 89

punctulate; hind femora with rather close and moderate punctures. Length
3.0-3.2 mm.; width 1.7-1.8 mm. Brazil (Santarem). Two specimens.
brevicollis n. sp.
Eyes separated by less than half of the beak in both sexes; prothorax less abbre-
viated and more regularly conical, not so conspicuously less than half as
longyasntheiehytrangen aeere eee ster ease arr re eet siden tu eek ea ae Myaley 5 snrteld aces 9
9—Body less abbreviated than in the preceding and feebly subrhombic-oval,
similarly polished, black; beak notably thick, feebly arcuate, rather com-
pressed and strongly sculptured at the sides, finely so and not carinate above,
about as long as the head and prothorax; eyes separated by a little less than
half the width of the beak, the shining interspace feebly impressed, more
deeply posteriad; head distinctly punctured; prothorax but little over two-
thirds wider than long, the sides converging and moderately, very evenly
arcuate from base to a just perceptible minute constriction at apex; surface
with minute and remote punctulation, becoming a little more evident laterad
though not conspicuous; basal lobe less narrowly rounded at tip than in
the preceding; scutellum nearly similar; elytra more distinctly longer than
wide, similarly about a sixth wider than the prothorax, parabolic, the rounded
humeri slightly prominent; grooves very coarse, deep, abrupt and nearly
smooth, the intervals smooth; under surface and femora punctured as usual,
glabrous. Length 3.2-3.3 mm.; width 1I.9-2.0 mm. Brazil (Santarem).
UD WORS PECiMeNS warp worries coestha.t ceoieie crane el oattink ww sine ereves obsidianus n. sp.
Body smaller, rather more narrowly oval and less subrhombic, similar in color
and lustre; beak moderately slender and compressed, feebly arcuate, strongly
sculptured, longer than the head and prothorax and feebly dilated apically
(9), or slightly shorter and rapidly very sharply dilated apically (o);
prothorax three-fifths wider than long, conical, with feebly and subevenly
arcuate sides; basal lobe rather abrupt but evenly rounded; surface finely,
sparsely punctulate, gradually more strongly toward the sides, very obtusely
ogival, barely as wide as long and flat; elytra very distinctly longer than
wide, a little more than twice as long as the prothorax and only slightly
wider, parabolic, but with relatively feebly arcuate sides and more rapidly
obtuse apex, the humeri feebly prominent, rounded; grooves coarse, very
deep, abrupt and nearly smooth; intervals flat, with the minute sparse
punctulation barely observable. Length 2.65-2.9 mm.; width 1.6-1.7 mm.
Brazila(Santarem))-eskivesspecimensSse. ese eae. eee rivularis n. sp.
Body still smaller and narrower, similar in color and lustre; beak evidently
longer than the head and prothorax, feebly dilated distally in specimens at
hand, which are probably female, feebly arcuate, strongly and closely sculp-
tured throughout above and at the sides; eyes separated by less than half
the width of the beak as in the preceding, but the interspace is flat, unim-
pressed and uniformly punctate and not very sparsely punctate, more
polished and posteriorly impressed, as it is in rivularis; head distinctly and
rather closely punctate; prothorax conical, with feebly, evenly arcuate sides
from base to apex, three-fifths, more or less, wider than long; basal lobe
similar; surface minutely, sparsely punctulate, more strongly and less
sparsely gradually toward the sides; scutellum smaller, more rounded;
elytra distinctly longer than wide, much more obviously wider than the
prothorax; humeri just visibly more prominent; grooves a trifle less coarse,
very deep and abrupt; intervals flat, the minute punctulation more evident.
Length 2.6-2.65 mm.; width 1.35-1.45 mm. Brazil (Chapada). Novem-
bene Mihreesspectmensmyamyn el ism te See acres Sates puncticeps n. sp.
10—Prothorax large, only very slightly narrower than the elytra. Body oval,
with only small and feeble humeral swellings, deep black and shining; beak
a little longer than the head and prothorax, feebly arcuate, densely sculptured,

go MEMOIRS ON THE COLEOPTERA

the upper surface cariniform basally; eyes separated by barely a third the
width of the beak, with nearly flat, punctate and unimpressed interspace,
the head finely punctate; prothorax only about one-half wider than long,
very convex and conical, the sides evenly and very feebly arcuate from base
to the extreme apex, which, as usual, is about three-sevenths as wide as the
base and rectilinearly truncate; surface minutely, remotely punctulate, not
quite so remotely, but barely visibly less minutely, toward the sides; basal
lobe very moderate, broadly rounded; scutellum minute, wider than long,
obtrapezoidal, with angulate apex; elytra barely at all longer than wide,
less than twice as long as the prothorax, parabolic; grooves very deep and
abrupt, punctulate along the bottom; intervals flat, with very minute and
sparse punctulation; under surface strongly punctate, the convex abdomen
very finely and sparsely. Length 2.2 mm.; width 1.3 mm. Brazil (Santa-
rein). + One: specimens se cee eee ee ee eee punctulatus n. sp.
Prothorax relatively smaller, distinctly narrower than the elytra............. II
1t—Form oval, very faintly rhombic, deep black and polished, the tarsi and
antenne piceo-testaceous; beak feebly arcuate, longer than the head and pro-
thorax, strongly punctate, less so above, the carina wanting; eyes separated
by less than half the width of the beak, the interspace shining, impressed
and smooth posteriad; head sparsely punctate; prothorax about one-half
wider than long, the sides strongly converging and very feebly arcuate from
base to apex; surface feebly impressed along the apex, very minutely, feebly
and remotely punctulate, scarcely at all more distinctly laterad; basal lobe
moderate, rounded; scutellum minute, slightly wider than long, very ob-
tusely ogival, flat and smooth; elytra slightly longer than wide, somewhat
over twice as long as the prothorax and a fifth wider, very obtusely parabolic,
the humeri broadly rounded; grooves coarse, abrupt, finely punctate along
the bottom, the intervals flat, smooth, rather narrow, the second a little
more than twice as wide as the second stria; hind femora obliquely im-
pressed and more densely punctate basally, the tibia flat, triangular, with a
few fine raised threads, scarcely more than three times as long as wide.
Length 2.2 mm.; width 1.3 mm. Brazil (Santarem). One specimen.
sparsus n. sp.
Form similar but narrower, still smaller, similar in coloration throughout; beak
almost similar, much longer than the head and prothorax; eyes separated by
barely a third of the rostral width, the shining interspace slightly impressed
but not foveate; head minutely, remotely punctulate; prothorax less than
one-half wider than long, the strongly converging sides from base to apex
evenly and barely visibly arcuate; surface finely though strongly, sparsely
punctate, somewhat more strongly toward the sides, and having a biabbre-
viated, smooth and feebly defined impunctate median line; basal lobe very
moderate, rounded; scutellum notably small, as long as wide, cordiform;
elytra slightly longer than wide, a sixth wider than the prothorax and less
than twice as long, with barely at all prominent humeri, more rapidly and
arcuately parabolic and much more narrowly rounded at apex than in
sparsus; grooves not quite so coarse, very deep, abrupt and with their
edges remotely and finely serrulate; intervals flat, with fine but evident
punctulation, usually in single line; hind femora evenly convex, arcuate
above, nearly straight beneath as usual, loosely punctate, the tibia more
slender than in sparsus and less flattened. Length 1.85 mm.; width 1.15
mm. - Brazil (Santarem); (Onejlexample,..2-eo ete eae conicicollis n. sp.

The beak is sometimes very conspicuously dilated at apex in
certain individuals, and much less so in others, as in rivularis; as
it seems to be somewhat longer in the less dilated forms, I assume

BRAZILIAN BARIN gI

these to be the females. This assumed sexual difference is not
always so marked as it is in rivularis however. Sexual differences
of any kind are very slight.

Harotreus n. gen.

In most respects this genus is closely allied to Coleomerus, but it
differs greatly in habitus, due to the peculiar costiform elevation of
the strial intervals. The hind legs are very broad, the femora oval,
their close punctures bearing each a very small seta; the tibia is
not quite three times as long as wide as a rule, more setose, rounded
externally, minutely costulate and with series of coarse shallow
punctures. The antennal club is peculiar, being truncate at base,
symmetric and with deep sutures, the basal segment two-thirds
the mass; the eyes are very large and approximate, and the tarsal
claws are slender, free and divergent, as usual in the tribe. The
mesosternum, just outside of the middle coxz, is oblong and very
densely granular and opaque, contrasting greatly with the shining
remainder of the surface. The three species are as follows:

Form very stout and convex, rhombic-suboval, polished, black; beak feebly
arcuate, three-sevenths as long as the body, finely and closely sculptured,
with a medial carina above basally, and, on each side, with a finer raised
thread; eyes separated by less than a fourth the width of the beak, with a
posterior fovea; head with large and close lunate punctures, which are very
shallow and with their floors micro-reticulate; prothorax three-fourths wider
than long, the converging sides feebly, subevenly arcuate to the dorsally
feebly impressed truncate apex, two-fifths as wide as the base, the basal
lobe distinct, obtusely rounded, rather gradual, the sides of the base oblique
and straight thence to the angles; surface minutely, remotely punctulate,
throughout the inferior flanks and obtuse lateral edges densely and strongly
punctate; scutellum small, wider than long, obtrapezoidal, with broadly
arcuate apex; elytra not quite as long as wide, nearly a third wider than
the prothorax and somewhat more than twice as long, obtusely oval, with
rather prominent but broadly rounded humeri; grooves deep, minutely,
remotely punctulate at the bottom, the intervals smooth, the cariniform
coste outside of the median line of each; abdomen very convex, finely,
rather closely punctate. Length 3.0 mm.; width 2.35 mm. Brazil (Cha-
pada—forest). September. One specimen—probably female.

chapadanus n. sp.

Form less abbreviated and more evenly oval, similar in color and lustre; beak
more feebly arcuate, thicker and shorter, not longer than the head and
prothorax, more compressed at the sides, the median and lateral carine of
the upper surface more obtuse; sculpture nearly similar; eyes separated by
less than a fourth the rostral width, more pointed beneath than in chapadanus,
the punctures of the head much smaller, less shallow and oval in form;
prothorax longer, only three-fifths wider than long, conical, with very feebly
arcuate sides, the sculpture similar; scutellum slightly more transverse;
elytra nearly similar, except that they are slightly longer than wide and
much less broadly obtuse at apex; abdomen more finely and sparsely punc-
tate, very faintly subimpressed medially at base. Length 3.3 mm.; width
2.25 mm. Cayenne. One male specimen, sent by Desbrochers des Loges.

lyratus Desb.

92 MEMOIRS ON THE COLEOPTERA

Form stout, subrhombic-oval, in color, lustre and sculpture nearly as in chapa-
danus; beak (<) rather longer than the head and prothorax, feebly arcuate,
distinctly dilated at apex, longer and very much thinner than in lyratus
and less compressed, loosely punctate, the medial carina obtuse, the lateral
long and distinct, or (9) nearly half as long as the body, somewhat more
arcuate and perhaps a little thicker, less dilated at apex; eyes separated by
a fifth the rostral width (@), or a sixth (); head closely and deeply punc-
tate, the punctures small and oval; prothorax nearly as in chapadanus,
much shorter than in /yratus, four-fifths wider than long, the form, sculpture
and the basal lobe nearly as in the former, the scutellum less transverse and
rather deeply impressed; elytra obtusely oval, similar in form and sculpture,
as long as wide ( @ ), a little shorter and more broadly obtuse (<7), distinctly
more than twice as long as the prothorax in both sexes; abdomen rather
finely but strongly, loosely punctate, not evidently modified in the male.
Length 2.6-2.85 mm.; width 1.75-2.0 mm. Brazil (Santarem). Seven
Specimens: vay.t) See eee ee eae. oct oe ee ee fluminalis n. sp.

The first and last of these species differ from each other very
much in the sculpture of the head, and lyratus differs from both in
the very much stouter beak and less abbreviated prothorax.

Acoleomerus n. gen.

This genus differs radically from Coleomerus and Harotreus in
the long and more slender hind femora, comparatively minute
antennal club and widely separated eyes; the beak is moderately
arcuate, thick basally, becoming gradually flattened to the thin
and somewhat dilated apex. The male has the beak a little less
thickened basally, but not appreciably shorter than in the female,
the abdomen strongly, rather closely punctate at base, with a
large and shallow but unmodified impression; in the female, the
basal parts are more finely and sparsely punctate and not definitely
impressed. The type is the following:

Acoleomerus rufofasciatus n. sp.—Body evenly and broadly oval, convex and
shining, glabrous throughout in both sexes, deep black, the abdomen obscure
rufous only in the female; elytra in both sexes black, with a broad rufous basal
fascia, a fourth suturally, to one-half laterally, the total length; beak short, only
three-fourths as long as the prothorax in both sexes, compressed and closely
punctate at the sides basally, with a smooth obtuse dorsal ridge, which is flanked
on each side by a fine raised thread; eyes moderate, separated by about the
rostral width, the interval flat and punctureless, the head rather closely and
strongly punctate; antennal club not quite as long as the three preceding
joints, the basal segment nearly three-fourths the mass; prothorax three-fifths
wider than long, the sides converging and evenly, strongly arcuate to the feebly
constricted truncate apex, less than two-fifths as wide as the base, the basal lobe
very broad and gradual, with narrowly rounded apex; surface more convex
than usual, with very sparse punctures, strong laterally, obsolescent and minute
medially; scutellum black, transversely oval, truncate at base and flat; elytra
obtusely oval, barely longer than wide, a fifth wider than the prothorax and less
than twice as long, the broadly rounded humeri clouded above with blackish
tint; grooves-sharp, deep and smooth posteriorly, coarser and more impressed
in the rufous fascia, where the broad flat intervals become feebly convex, having

BRAZILIAN BARINZ 93

throughout minute and sparse punctures in one or two irregular series; femora
strongly, loosely punctate, the tibia moderately stout, fluted. Length 3.9-4.3
mm.; width 2.7-3.0 mm. Brazil (Chapada). March and October. Two
specimens.

The sexual characters do not affect the head or beak very notice-
ably, but are evident on the abdomen in a very unusual way,
affecting the sculpture, basal impression and coloration.

Cryptobaris n. gen.

The type of this genus is aberrant, when contrasted with other
genera of the tribe, in being strongly sculptured, squamulose and
subopaque. The pectoral canal also differs, extending only through
the mesosternum and not entering the metasternum; the portion
involving the mesosternum is broadly concave, much wider than
the beak and limited at each side by an elevated ridge. The
mandibles are of the usual porrect and internally straight type,
but their apices are somewhat more obtuse than in any other. The
eyes are very moderate. The antennal club is small, oval, with
deep sutures, its three segments subequal in size. The type may
be described as follows:

Cryptobaris sulcata n. sp.—Suboval, convex, uniform rufo-piceous in color
throughout, rather shining but with micro-reticulate and partially opaque surface;
beak distinctly longer than the head and prothorax, arcuate at base, thence
nearly straight to the apex and rather slender (@), or less slender and feebly
arcuate (<”), strongly, closely sculptured and opaculate, squamulose basally; eyes
separated by the rostral width; entire head closely punctate and opaque; pro-
thorax a third (<”) to half (9) wider than long, the sides feebly (co) or more
strongly (Q) converging and broadly arcuate, more rounded anteriorly to the
tubulate apex, which is three-sevenths as wide as the base; surface strongly
punctate, very densely and shallowly so and opaque anteriorly and laterally,
more loosely and with more shining interspaces basally, the squamules sparse,
yellowish, distinct only toward the sides; median line well defined, polished and
smooth; basal lobe small, rounded; scutellum obtrapezoidal, wider than long,
flat, the sides feebly, the apex broadly, sinuate; elytra oval, slightly elongate, a
fifth wider than the prothorax and less than twice as long, rather obtusely rounded
at apex; humeri somewhat narrowly rounded and slightly prominent; grooves
very coarse and feebly punctate, opaque, the intervals but little wider than the
grooves, strongly and closely, seriately punctate and squamulose; femora rather
slender, opaque, finely, sparsely squamulose, the tibia slender; tarsi but little
shorter than the tibia; under surface opaque, finely punctate and sparsely,
finely squamulose. Length 2.7 mm.; width 1.4-1.45 mm. Brazil (Chapada).
November. Three examples.

The sexual characters in this species are also very remarkable;
they affect the head and beak only slightly, but the abdomen in
the male has the basal segment broadly and feebly concave, shining
and with deep and clearly separated punctures, the second segment
with dense shallow punctulation and very opaque surface, except
apically. In the female the entire surface of the abdomen is

94 MEMOIRS ON THE COLEOPTERA

opaque, finely punctate and with very small sparse setiform squam-
ules. Sutures 2—4 are very strongly reflexed at the sides.

Tribe Ca:LONERTINI.

The few genera composing this distinctly defined tribal group
have some characters recalling the preceding tribe, such as the
rather large and moderately separated eyes, sulcate femora and a
pectoral canal, which affords close protection to the beak in repose,
but they differ in their elongate and parallel or rigidly cylindrical
form of body, very coarse and close sculpture and partially squami-
form vestiture, also in the decussate and feebly toothed mandibles.
The pectoral canal is of a very different nature, for here it is shorter,
terminating abruptly at the hind margin of the prosternum, and
is very deep throughout, with its walls strongly elevated, so that
it appears to be on a level above that of the adjoining surfaces.
The beak is notably short. In the material at hand there are five
distinctly defined genera as follows:

Parsal claws slender, tree and divergentss -.cra oes (30s ae eee 2
Tarsal claws straight, comnate at basei- 0%, .u)c201 2) se ee eee 4
2—Antennal club large, oval, as long as the entire funicle or longer, solid, with
very fine and indistinct oblique sutures, the first two segments together
constituting but little more than half the mass; beak more or less thick.

[Eye -D..USPusstrOsires MOV: linc. cbareg: 0 cs oe OR ie eae Tsianina
Antennal club much shorter than the funicle, with transverse sutures; beak
more. or less slender... ists apo | oleae ee ee eet See ee ae 3

3—Antennal club oval, solid, with very fine and feebly marked sutures, sub-
equally segmented, the first two segments subequal; outer funicular joints
gradually wider, merging into the outline of the club; prothorax with rounded
subinflated sides. [Type J. gravidula nov.].................+--0- Iotomia
Antennal club more briefly oval, rather more, although but slightly, abrupt, less
densely pubescent, not solid, the sutures conspicuously coarse and deep, the
basal segment constituting half the mass; body more parallel and cylindric,
with straighter sides, the prothorax in great part with straight parallel sides,
oblique at apex; mandibles bifid and decussate as usual. [Type C. squamu-
losus'Solartill eve ods ot cece oe Oe OE ee Ceelonertus
Antennal club similarly small and oval but very abruptly formed, with deep
sutures, the basal segment half the length; outer funicular joints not dilated;
body and prothorax nearly similar, the mandibles differing, not decussate,
the right straight within and feebly crenulate, the left shorter and more
obtuse, very slightly emarginate within; sides of the prosternal sulcus not
strongly elevated and with concave outer slope as in the preceding, but of
normal structure... [ype 2. rece maovel.. ..20n e eee e Trinacria
4—Body narrowly subcylindric, very coarsely but loosely sculptured; beak rather
slender, the antennal club small, oval, with deep coarse transverse sutures,

the basal segment more than half the mass. [Type A. hispidulus nov.]
Anthenius

The femora are sulcate beneath, subparallel, the tibiz straight,
feebly arcuate externally toward base, and the abdomen is very

BRAZILIAN BARIN 95

convex, all of which features also ally the Coelonertini to the Coleo- .
merini, although the habitus of the body is so very different. The
sexual characters seem to be extremely feeble. The general appear-
ance of the first two of the above genera is almost identical, the
chief external difference being the fasciiform arrangement of the
elytral squamules in Jotomia, and the absence of this feature in
Tsianina.

The Mexican genera Cnagius, Coluthus and Coleomeropsis, of
Champion, also belong to this tribe, without much doubt.

Tsianina n. gen.

The fundamental distinctive character of this genus is the large
and almost solid, somewhat asymmetric, antennal club, with almost
obsolete and oblique sutures and short basal segments, in which it
differs greatly from Celonertus and Anthenius but is rather close to
Iotomia. The beak is, however, less slender in the present genus,
and is sometimes notably thick, although the body, on the whole,
is remarkably similar in outline and sculpture. The two species
in my collection may be described as follows:

Beak very thick and glabrous, obliquely bent downward distally; femora stouter,
oval. Body elongate-suboval, rather shining, deep black throughout, the
pronotum sparsely hispid with short dark sete, the elytra with a few stout
whitish hairs on the first interval behind the scutellum, the sete of the
other intervals dark brown throughout and in single line; under surface
and legs having uniform sparse hair-like squamules throughout; beak not
quite as long as the prothorax, moderately and loosely punctured at the
sides, more finely but rather closely above; eyes large, separated by three-
fourths the rostral width, the interspace feebly impressed, the entire head
strongly, closely punctate; prothorax nearly as long as wide, the sides
broadly rounded, becoming gradually subparallel in about basal half, the
feebly constricted truncate apex half as wide as the base, the lobe feeble,
angularly emarginate; punctures very coarse, deep and almost contiguous,
a narrow smooth partial median line evident; scutellum quadrate, smooth
and impressed behind, punctulate and flat basally; elytra nearly a fourth
longer than wide, almost a fourth wider than the prothorax and one-half
longer, very obtusely subparabolic, with barely at all prominent humeri;
grooves coarse, deep and punctulate; intervals flat, with single series of
rather strong and close punctures; hind body beneath coarsely, densely,
the abdomen more finely and loosely, punctate. Length 3.8 mm.; width
1.6mm. Brazil (Santarem). One specimen............ spissirostris n. sp.

Beak only moderately thick, more opaque and squamulo-setulose, not abruptly
oblique downward at apex; femora narrower, not quite twice as wide as the
tibie. Body as in the preceding in form and color, but with shorter pro-
thorax and still more broadly obtuse elytral apex, slightly shining; setiform
squamules shorter, inconspicuously bristling on the pronotum, very small,
dark brown and unilineate on the elytra, coarser and white on the first
interval basally and with a few widely scattered near the middle of the
length; under surface as in the preceding; beak (¢) longer, thicker and
less arcuate, as long as the prothorax, or (c”) less thick, strongly, evenly

96 MEMOIRS ON THE COLEOPTERA

arcuate and not quite so long, strongly, closely sculptured in both sexes;
eyes separated by evidently less than the rostral width in both, the head
closely punctate; prothorax a third wider than long, formed nearly as in
the preceding, the apex broader, more than half as wide as the base, the
lobe small, with the sinus much more minute and shallower; punctures
very coarse and close, with a smooth median streak centrally; scutellum
scarcely as wide as long, more swollen and more deeply concave posteriorly
than in the preceding; elytra a third longer than wide, a fourth wider than
the prothorax and fully twice as long, the feebly oblique sides only slightly
arcuate, the tumid humeri not laterally prominent; grooves deep; uniseriate
intervals barely visibly wider than the grooves. Length 2.65-3.35 mm.;
width 1.2-1.4 mm. Brazil (Chapada—campo and forest). May and
November Eight specinensi: 7 ee are ernst. oes eee eee cribrata n. sp.

The pronotal punctures in the genus are much coarser than in
the succeeding genus, and are feebly ocellate; the elytral grooves
are also coarser and with narrower intervals.

Iotomia n. gen.

The more numerous species of this genus bear a very striking
external resemblance to 7sianina, being almost identical in outline,
except that the sides of the prothorax are more rounded or sub-
inflated, and that the sparse white hair-like squamules of the elytra
always form a loose transverse post-median fascia. The beak is
still shorter and much more slender, and the antennz are distinctly
different as stated in the table. As in the preceding genus, I can
discover no abdominal sexual characters, and those relating to the
head and beak are but slight. The three species at hand are the
following:

Body notably broad, oblong, subparallel, somewhat shining and deep black
throughout; pronotum with a few slender hair-like white squamules laterally
and subbasally, the elytra with very small dark brown, and larger sparse
slender white, squamules, the latter distinct on all the strial intervals basally
and in single series for a short distance post-medially; under surface with
distinct and sparse narrow white squamules throughout; beak slender,
moderately arcuate, subcylindric, distinctly sculptured and loosely basally
squamulose in both sexes, distinctly shorter than the prothorax, only very
little shorter in the male; antennz slender, medial; eyes separated by the
rostral width in both sexes; head throughout closely and strongly punctured;
prothorax fully a third wider than long, the sides strongly rounded and
rapidly converging anteriad, becoming very feebly arcuate and perhaps just
visibly converging toward base, the truncate apex four-sevenths as wide as
the base; basal lobe small, evenly, strongly rounded; punctures coarse and
deep, separated by less than half their diameters, with a smooth median
line in about basal half; scutellum small, oblong, impressed; elytra a fourth
longer than wide, with feebly converging sides and broadly obtuse apex,
barely wider than the prothorax and four-fifths longer, the humeri small,
rapidly rounding; intervals about one-half wider than the grooves, which
are moderately coarse, deep and abrupt, the single interstitial series composed
of distinct close punctures; abdomen very finely punctate. Length 4.2-4.6

BRAZILIAN BARINE 97

mm.; width 1.8-2.0 mm. Brazil (Chapada—forest and campo). Novem-
ber and December. Five specimens................-.- convexicollis n. sp.
Body smaller and especially narrower than in the preceding, though nearly
similar in color, lustre, sculpture and vestiture, the metasternum similarly
more closely squamulose than the side-pieces; beak nearly similar but
slightly shorter, slender, arcuate and cylindric, smoother and more shining;
eyes separated by the full width of the beak; prothorax less transverse, only
a fourth wider than long, the arcuate sides less rapidly converging anteriad,
more parallel and feebly arcuate in about basal half; apex not quite so wide,
but more than half as wide as the base; sculpture and lobe nearly similar,
except that the punctures are in mutual contact; elytra nearly similar, the
feebly arcuate sides a little more oblique and the apex less broadly rounded,
rather more evidently wider than the prothorax, the grooves, punctures
and scanty vestiture almost similar. Length 3.35-3.85 mm.; width 1.4-1.7
mm. Brazil (Chapada). May. Two specimens, found on flowers in
Glearines: <pivea ets eee pehcek cle tox af alate} he vila ale ads am Selene balteella n. sp.
Body a little narrower and more suboval than in convexicollis, nearly as in balteella,
but more abbreviated, similar in color, lustre and vestiture but differing
from either in the less coarse thoracic punctures, which are more distinctly
separated among themselves, especially near base, where they become small
and widely separated; the basal lobe also has a broad shallow apical sinus,
invisible in either of the preceding; beak closely sculptured, feebly arcuate,
distinctly shorter than the prothorax (¢@), still a little shorter and less
slender (co); eyes separated by not quite the rostral width; head rather
finely, very densely punctured throughout; prothorax still less transverse
than in balteella, a fifth wider than long, rather more in the female, the sides
broadly rounded medially, oblique anteriorly, nearly parallel basally, the
truncate apex three-fifths as wide as the base; elytra nearly similar, somewhat
more than one-half longer than the prothorax, the strial intervals a trifle
wider. Length 3.9-4.0 mm.; width 1.8 mm. Brazil (Santarem). Two
SPECIIIEIS mega peas Mec aii dais) Grofehagsib ahs + fe Ueeha.n sus ia nee thoracica n. sp.

I am unable to identify these species with any of those described
as Celonertus by Solari, all of which may truly belong to C@lonertus,
as the prothorax is very much more elongate than in any one of
the five preceding species, and the form is more cylindric, except
perhaps in alternatus and baridioides; they are also from rather
widely different localities.

Ceelonertus Solari

In this genus the body becomes narrower and more truly parallel
and cylindric, with the prothorax longer as a rule. The antennal
club differs radically, for, instead of being very solid, with fine and
feebly marked sutures and short basal segment, it is here more
abbreviated, less densely pubescent, with deep coarse sutures and
relatively very large basal segment. There seem to be two rather
well defined species at hand as follows:

Form almost cylindric and parallel, only feebly shining, black throughout; pro-
notal punctures bearing slender sparse white squamules, a little broader and
closer at the sides; elytra with single series of small dark brown squamules,

T. L. Casey, Mem. Col. X, Aug. 1922.

98

MEMOIRS ON THE COLEOPTERA

longer and white at the base of each interval, in a longer post-scutellar line
on the first, and on all the intervals for a considerable distance behind the
middle and sometimes also at apex; under surface with the slender white
squamules sparse, larger and dense on the met-episterna and posterior parts
of the abdomen; beak short, thick, feebly arcuate, densely sculptured and
about four times as long as wide (<), similar in length and three-fourths as
long as the prothorax but notably slender (2); sparsely squamulose and
feebly carinulate above in the male; eyes large, only a little more separated
below than above, where the squamose interspace is three-fifths as wide as
the beak (o”), or three-fourths (2); head nude, finely, not densely punctate;
prothorax just visibly elongate (co), or a sixth wider than long (2), with
parallel and nearly straight sides, rapidly rounding at apical third to the
broad, truncate and subtubulate apex, which is almost two-thirds as wide
as the base, the basal lobe small, rounded; punctures very coarse, virtually
in mutual contact; scutellum small, parallel, longer than wide; elytra a
third to two-fifths longer than wide, very slightly wider than the prothorax
and three-fifths longer, the sides arcuately converging slightly posteriad, to
the broadly rounded apex, the humeri not prominent; grooves very abrupt,
coarse, deep and strongly punctate along the bottom; intervals but little
wider than the grooves, each with a single series of coarse and almost con-
tiguous punctures; abdomen finely punctate, without sexual modification.
Length 2.6-3.0 mm.; width 0.85-1.2 mm. Brazil (Chapada). May and
November. On flowers, in forest clearings. Abundant. Eleven specimens.

solarii n. sp.

A—Body nearly similar but a little larger and stouter; beak in both sexes

relatively shorter and stouter, only three-fifths as long as the prothorax
or less in either sex, and, in the female, although thinner than in the male,
distinctly thicker than in the female of solariz; prothorax relatively
larger, nearly as long as wide in the male, much less distinctly narrower
than the elytra than in the same sex of solarit, the punctures similarly
very coarse and dense, partially confluent; elytra throughout nearly
similar. Length 3.1-3.2 mm.; width 1.3 mm. Brazil (Chapada—forest).
‘Two Specimens: 453..4' Alesse eickk Seem Bae See ae floricola n. subsp.

B—Body nearly as in the preceding; beak (2) almost similar and much

thicker than in the female of solariz, but little over half as long as the
prothorax, the latter similar, but with the coarse punctures less dense,
being individually distinct in outline and slightly separated; elytra nearly
similar. Length 2.8 mm.; width 1.23 mm. Brazil (Chapada). On
flowers in forest clearings. One female specimen...... discretus n. subsp.

Form, coloration, vestiture and other characters nearly as in the preceding, but

a little larger and broader, subcylindric, the loose white squamules in single
series behind the middle of the elytra forming similarly a loose transverse
fascia, which, however, is narrower than in solarii and more widely separated
from the base, the denser white line basally on the first interval shorter;
beak still stouter and less than four times as long as wide, closely sculptured
and squamulose, the eyes more distant, separated by the full width of the
beak, the head more closely punctate; antennal club slightly smaller and
still more gradually formed; prothorax of similar form, but rather more
distinctly wider than long, the punctures not quite so coarse and more
crowded, in close mutual contact; median line finely smooth and subtumid,
wanting apically; elytra similar in general proportions and sculpture, but a
little broader; abdomen more closely squamulose throughout. Length 3.7
mm.; width 1.45 mm. Brazil (Chapada—forest). November. One fe-
Male?) 24033 Re A eT ee ee silvestris n. sp.

BRAZILIAN BARIN 99

It is probable that these species are truly congeneric with the
type described by Solari, although no definitive mention of the
antennal club is included by the author; the generic relationships
are therefore more or less in the nature of a surmise.

Trinacria n. gen.

The body here has very nearly the same parallel and convex
form as in the preceding, but the system of sculpture and ornamen-
tation is different, besides the rather radically different mandibles,
as before stated. The beak in the male is rather short, thick,
feebly arcuate, not separated from the head above and with the
antenne greatly beyond the middle, and, in the female, not differing
very much, but more slender and with the antenne more medial.
The prosternal canal is only well defined before the coxe, and is
not inclosed by high lateral walls as it is in Celonertus; it is not at
all defined behind the moderately separated coxe. The two known
species may be defined as follows:

Body narrow, parallel, convex, deep black and moderately shining, the legs
piceo-rufous and slender, the beak more or less rufescent at apex; whitish
squamules above minute, sparse and inconspicuous, a little more distinct
on the elytra medially at apical fourth, and becoming dense conspicuous
scales on the intervals in basal sixth and also at the hind angles on the pro-
notum; beneath they are fine and sparse, but in the form of dense scales on
the met-episterna; beak moderately thick, much shorter than the prothorax
in both sexes, the prothorax strongly convex when viewed in profile, as long
as wide, the sides parallel and straight to somewhat beyond the middle, there
rounded and thence oblique and feebly subsinuate to the apex; punctures
coarse, deep and not quite in mutual contact; scutellum subquadrate, small,
impressed and glabrous; elytra three-fifths longer than wide, barely visibly
wider than the prothorax and two-thirds longer, the sides parallel and straight
in about basal half, thence arcuately converging to the narrowly rounded
apex; striz deep, punctulate, fine apically, gradually rather coarse basally;
intervals twice as wide as the striew, each with a single series of small distant
punctures. Length 2.2-2.35 mm.; widtho.75-0.85 mm. Brazil (Santarem).
DEV CUES MCCMMICIS MMI eRe eS alsa tia Se sas Schnee. Moti ee bs cio, e recta n. sp

Body much larger, subparallel though rather more ventricose, convex, somewhat
shining, the pronotum alutaceous; color dark red-brown; yellowish-white
squamules above small, sparse and inconspicuous on the pronotum, coarser
but sparse at the hind angles; on the elytra they are coarse and distinct in
single lines, becoming gradually confused at base and almost wanting through-
out on the flanks, fine but rather long and abundant beneath, coarser on the
prosternum and dense also on the met-episterna; beak (<) thick, closely
and finely sculptured, straight, bent a little apically and three-fifths as long
as the prothorax, the antenne near distal third; prothorax convex, rapidly
sloping at apex when viewed in profile, as long as wide, the parallel sides
feebly arcuate for two-thirds, then rounding and sinuously oblique to the
truncate apex, much more than half as wide as the base; punctures moder-
ately coarse, uneven, separated by once to three times their diameters; scu-
tellum elongate, parallel and deeply canaliculate; elytra only one-half longer
than wide, distinctly wider than the prothorax and two-thirds longer, parallel,

I0O MEMOIRS ON THE COLEOPTERA

gradually circularly rounded in about apical half; grooves coarse and deep
throughout, punctate at the bottom; intervals with single series of strong
and moderately separated punctures, but little wider than the grooves
basally but more than twice as wide as the latter apically; legs rather long and
slender, rufous. Length3.65 mm.; width1.45mm. Brazil (Santarem). One
SHECIMER Ses 2 Fe eters ove TISETAaee Sekies ta note eee ence basalis n. sp.

The eyes are rather large, separated by nearly the width of the
beak in basalis, but much less in recta.

Anthenius n. gen.

The basally connate and slender, nearly straight tarsal claws
and small antennal club, with relatively very large basal segment,
are the chief distinctive structural peculiarities of this genus. The
body is more slender, cylindric-oval and convex, with exceptional
vestiture in the tribe. The type and only known species is the
following:

Anthenius hispidulus n. sp.—Body narrow, cylindric-oval, deep black and
rather shining, the legs and beak piceo-rufous; upper surface with rather long
and sparse, erect seta, arranged in single lines on the elytra, the pronotum with
large dense white scales at the basal angles, the elytra with a line of similar
dense scales at the base of the third interval for a fifth the length or less, and a
medial area just behind the middle of each elytron, composed of similar but widely
separated scales in single line on each interval; under surface having narrow
sparse white squamules, becoming large dense scales on the met-episterna; beak
cylindric, feebly arcuate, rather slender, much shorter than the prothorax in
both sexes, especially in the male, sparsely squamulose and closely sculptured
basally; eyes separated by about the rostral width in both sexes; head closely
punctate; prothorax just visibly longer than wide, the sides subparallel and
nearly straight, broadly rounding anteriad to the truncate and subtubulate apex,
which is two-thirds to three-fourths as wide as the base, bisinuate; basal lobe
small, rounded; punctures very coarse and deep, somewhat unevenly spaced but
generally separated by a little less than their diameters; scutellum very small,
subquadrate, emarginate at apex; elytra two-fifths longer than wide, only very
slightly wider than the prothorax and one-half longer, the sides parallel basally,
feebly, arcuately converging posteriorly, to the not very obtuse apex; grooves
moderate, abrupt, punctate along the bottom and half as wide as the flat shining
intervals, each with an even and widely spaced series of moderate but deep
punctures; legs short, slender, shining and finely, sparsely punctate; abdomen
feebly punctulate and with sparse white lineate squamules, apparently not
modified sexually. Length 2.3-2.8 mm.; width 0.72-1.0 mm. Brazil (Chapada
—on flowers). May and November. Nine specimens.

The specimens vary a good deal in size, but apparently there is
only a single specific form at hand. The genus Celonertus was, as
might be inferred by the name, placed by its author near Nertus.
I do not have the true Nertus at hand just now, but if Madopterus
and Strongylotes are properly associable with it, constituting with
some others the tribe Madopterini, there does not seem to be any
affinity, and Celonertus is more closely allied to Coleomerus than

BRAZILIAN BARINZE IOI

to any other type of Barine. The Madopterini are, in fact, so
isolated that they are placed in the present work at the end of the
series; they are probably closer to the Madarini than any other
tribal group.

Tribe CENTRININI.

This is an enormous complex of genera and species as at present
understood, and in order to reduce the taxonomic difficulties to
some extent, I have separated a large part of them, having a nar-
rower and parallel body, usually with much shorter beak, under
the name Limnobarini; but,-even after this substantial reduction,
the numbers met with in the neotropics are appalling to the sys-
tematist. It is not possible to define the limits of either of these
tribal groups at all rigidly, and it can simply be said that in the
Centrinini the body is of a more or less evident rhombic shape, the
beak usually long and the antenne more or less slender—although
there are many exceptions such as the thick beak of Neplaxa, the
anterior coxe never in mutual contact, although virtually con-
tiguous in Roalius, and but seldom remotely separated as they are
in the Madarini. The male prosternum may or may not have
somewhat variable ante-coxal spines, which is also the case but less
frequently in the Limnobarini. The tarsal claws may be free,
connate or single and the mandibles are straight and internally
smooth, dentate and more or less decussate or of peculiar form, as
in the genus Garnia and especially in Nedestes. The body may be
entirely and closely clothed or completely glabrous, with all kinds
of intermediate vestiture. The prosternum only very rarely has a
deep or sharply limited pectoral canal, nor is the upper surface of the
body high and vaulted as in the Diorymerini, where prosternal
spines areunknown. The Optatini, which also have the pronounced
rhombic form of body, may be distinguished generally, but not
always, by the contiguous or veryclose anterior coxe, andabsolutely,
so far as known, by the entire absence of prosternal spines in the
male, although this is rather a negative than positive discriminative
character. I think that much work will have to be done on larval
histories before a rational final classification can be made in the
Barine.

The genera which I have thought should be associated under the
name Centrinini are extremely numerous; those now in my collec-
tion from the regions under consideration are as follows:

Tarsal claws connate or extremely approximate, rarely single................2
Parsali claws tree;andsmorejor, less divergent. 42 ei. W/o. ona bald ere dees 24
2—Body never less than about 3 mm. in length, the upper surface entirely glabrous

—rarely excepting the scutellum, thoracic lobe or elytral suture.......... 3

Body minute in size, always much under 3 mm. in length and in most cases
conspicuously clothed throughout; femora never denticulate............ 7

102 MEMOIRS ON THE COLEOPTERA

3—Mandibles straight or not at all overlapping or decussate, not obviously
dentate within s oye 4.0 steroid wis wide mandate ee Seio le = Sip iterate oes Oe roe eae 4
Mandibles decussate and strongly dentate or bifid, or rarely straight, though
strongly dentate within, scarcely at all overlapping and, in such cases,

together rather prominent: wheniclosed: ase eee eric eee 14
Mandibles quadrate, truncate, not decussate, closing on a short straight line.. .16
4—Femora spiculate beneath; tibiae rounded externally toward base.......... 5
Femora not spiculate, the tibiz similarly evenly rounded externally.......... 12
Femora not spiculate, the tibize with a very sharp and prominent external tooth

near the «base: saa. Sisck Bala ack oc SER ROC eon Seep ata anes 13
5—Mandibles externally oblique and subevenly arcuate from base to apex... ..6

Mandibles with the external outline oblique and straight to beyond the middle,
there abruptly and almost rectangularly turned inward, the apical part nar-
TrOwsand acuminate beyond (his points eee tele tetera ne it

6—Mesosternum not modified; under surface without patches of dense scales. .7

Mesosternum transversely prominent, often porrectly produced and sinuate or

bilobed sii6,.3 0302 cy% pcce cases Speen ope See eek Oe eI SE ee Eero 10
7——Antennalwchubysmallior moderates ace eee eeioeini einer ho Osea 8
Antennal club greatly elongated; body coloration brightly metallic, highly

polishedts.7711. SAS AS LEG E 2N EER RRS See eA ae ee: 9

8-—Strial intervals of the elytra. very convex; surface highly polished, the elytra
bicolored; prosternal processes of the male long and conspicuous. [Type
Sc fOSCLOSUS. TOV aps teen. aah stoke ie Beasts a Re ca Cae oe Stegotidius
Strial intervals very flat; pronotum with a prominent tumidiform carina; surface
deep black and opaque, the beak long; prosternal processes of the male
somewhat short and slender; body broadly rhombiform, rather large in size.
[Dyper Cryptorkynchws teach: WKarby|s. ccs. «cso tere ote ate bt Camelodes
Strial intervals flat or very nearly so; pronotum not carinate, generally evenly
convex, sometimes gibbous; beak long and slender to moderately short and
thick; surfaces polished and smooth above, black throughout or with rufous
prothorax, generally wholly glabrous, but sometimes with the scutellar lobe,
scutellum or prosternum clothed with pale squamules; elytra never more
than moderately grooved, the humeri always prominent, either laterally or
dorsally; scutellum not flat, transverse and free; outline rhomboidal, the
prothorax tubulate at apex; species extremely numerous. [Type S. rhom-
DICUS OWE | Ghd an ees & cretion tot tete ete hy nee ee En RUE OE ape Stegotes
Strial intervals and most of the structural characters as in Stegotes, but with the
elytra very peculiar in coloration, almost exactly as in Eucoleomerus; sur-
faces above smooth and very shining; antennal club a little longer, with
deep sutures, about as long as the five preceding joints combined; elytra
without prominent humeri. [Type S. mimetica nov.].......... Stegotopsis
9—Body rhomboidal, with prominent humeri as in Stegotes, the beak long,
arcuate; under surface without patches of dense scales, the mesosternum
normal; prosternum sharply canaliculate. [Type G. chalybeus nov.]
Gladosius
10—Body rhomboidal, generally more elongate than in Stegotes, and having
beneath sharply defined patches of very dense whitish scales, somewhat
variable in number and extent; prosternum not canaliculate as it is in
Stegotes, almost perfectly flat as arule. [Type Centrinus tumidus Boh]
Diastethus
11—Form, polished lustre and. smooth upper surface as in Stegotes, but with
bicolored elytra, the antennal scape shorter, at tip much further from the
eye than in that genus; beak long, slender, more rapidly bent basally;
prosternum with an extremely shallow parallel impression, the cox separated
by three-fourths their width; body small in size, broadly rhomboidal.
[Dy peeVinE scapulinus novela ae eee eee eee Microstegotes

BRAZILIAN BARIN 103

12—Beak short, thick and arcuate, not compressed; antennze medial, rather
short, the first funicular joint as long as the next three, the club somewhat
stout, densely pubescent, gradually pointed, with deep sutures, the first
segment distinctly less than half the mass, the outer funicular joints gradually
broader; body rhomboid-oval, glabrous and shining, the scutellum small,
flat, parabolic and in close contact with the elytra, the latter deeply grooved,
with a few slender squamules near the scutellum; prosternum canaliculate.
[Wype: 2. obesulanovaleaved teeta as eee Aik s sheds docx Pseudogarnia
Beak long, moderately slender, arcuate; antenne submedial, the first funicular
joint as long as the next two, the club oval, its first segment larger but not
quite half the mass; outer funicular joints less broadened; body oblong-
suboval, glabrous, smooth and shining, the flat scutellum larger and more
obtuse, only at the sides in close contact with the elytra, which are similarly
grooved; prosternum flat. [Type L. polita nov.]............ Leptogarnia
13—Body rhombic-oval, subglabrous, the thoracic lobe and scutellum clothed;
beak moderate, nearly straight; antenne medial, the scape not attaining
the eye, the first funicular joint not as long as the next two, which are obconic,
the outer joints stout; club rather short, with strong sutures, its basal
segment from one-half to two-thirds the mass and subglabrous; prosternum
squamulose, feebly impressed; scutellum transverse, more or less free; elytra
very coarsely grooved; upper surface sparsely punctate. [Type 7. parvi-
CAVES TION PPR SEE Pe AIS oo ct NSH odie as lads Tenemotes
Body shorter, subrhombic, but with notably large prothorax, glabrous, smooth,
shining and bicolored; beak long, arcuate, compressed and strongly sculp-
tured, smoother and more slender beyond the antennz in the female; antennz
behind the middle, the first funicular joint shorter than the next two, the
pubescent club moderate and narrowly oval; prosternum feebly canaliculate,
slightly bitumorose in the male; scutellum somewhat transverse, closely
fitted and densely squamulose, the elytra grooved. [Type T. orbatus nov.]
Tenemotides
14—Body wholly glabrous, oblong-oval; beak rather thick (), very moderately
so (9.), strongly and loosely punctate, separated from the head by a deep
but rather fine sulcus; mandibles decussate, strongly dentate, rounded ex-
ternally; antennal club abrupt; scutellum closely fitted, oval; prosternum
not spinose in the male, the femora all non-spiculate. [Type P. atrolucens
HOvA Ree ee OE Re fans Sle Aas See ek. otha wecelals Paragarnia
Body completely glabrous; beak very thick, shining, with feeble transverse
basal impression, the mandibles broadly decussate and strongly dentate;
femora slender, the anterior spiculate beneath; antennal club gradually
formed; scutellum fitted closely to the thoracic lobe and surrounding elytra.
[ivipenSeeeradataamonynlpgrss aaeed latwrvalaie os 6 slacdutals ayorste WARDS. eee Spolatia
Body above glabrous, the elytral base and the suture squamulose in the type;
femora large, not spiculate beneath; antennal club very gradual in formation;
scutellum free; tarsal claws large and finely striate. [Type L. suturalis nov.]
Linogarnia
Body glabrous above, sparsely, evenly and minutely squamulose beneath; beak
thinner and straighter, with a deep transverse sulcus at base; mandibles
long and prominent, not decussate, but with a large internal tooth; antennal
club not so gradually formed; tarsal claws large, striate. [Type 7. obsid-
4OnGmO Velie eee Br ements ne ely WE SY Rak ect » Tudeniaspis
Body similar in lustre and vestiture; beak rather short but only moderately
thick, arcuate and closely sculptured, with feeble and indefinite basal im-
pression; mandibles broadly decussate and strongly dentate; antennal club
longer, gradually formed; body as in the two preceding, rather small and
not broadly oval; claws almost as in the preceding three genera, straight,
diverging, somewhat unequal and striate. [Type 7. bicolorata nov.]
Tudenia

104 MEMOIRS ON THE COLEOPTERA

Body above uniformly clothed with scales or squamules; femora not spiculate
beneath; antennal club oval, subequally trisected by distinct sutures; beak
notablythick. le: MM AE AS ei cocina ee ele 15

15—Beak evenly arcuate; antennal club abrupt; anterior cox separated by less
than half their width; prothorax moderate, not constricted at apex. [Type
Pe Sparso NOV ss RAs ke ER Sere Fe ee Thestonia

Beak unevenly arcuate; antennal club gradual in formation; anterior coxe
separated more widely; prothorax notably large, constricted and subtubulate
at apex, »\ [ype eRe obiccmmenoval ane eee ee ee Parathestonia

16—Body stout, oval, glabrous; beak very slender except basally, at least in
the female; antenne far behind the middle, the club thick, gradually pointed;
anterior coxe distant, separated by more than their own width; femora

slender, not denticulate beneath. [Type G. militaris nov.]....... Garnia
17—Darsal claws twoun'numberasiisualy ome 2 steve ie tater = erent eee 18
Parsalicla ws Singles Rah emery eye atesaeoe, cee oe PERL eta Tee Te er SIP re eS ee DB

18—Mandibles straight, unequal; prosternum with a narrow impressed channel;
anterior coxe separated by less than their own width; body elongate-

suboval, with distinct vestiture. [Type A. serzata nov.]........ Andiblis
Mandiblesidentaterandidectissater eta nein ee eee eee 19
19—Body glabrous or subglabrous; femora not denticulate................. 20
Body conspicuously7clothed:y res ieee eee ae ae ee eer 21

20—Body glabrous or subglabrous; prosternum with a moderate and very
shallow sulcus, which is more or less sharply limited at the sides; scutellum
oval to transverse. [Type O. conicicollisnov.].............+...-- Ovanius
Body more broadly ovulate than in the preceding, remotely and minutely setulo-
squamulose; scutellum small; prosternum broadly and shallowly canalate
and squamulose; anterior coxe moderately separated and having on each
internally an erect subquadrate plate in the male. [Type S. ovulum nov.]
Stethobaridia

21—Anterior coxe subcontiguous; prosternum with a squamose channel, sharply
defined at the sides; mandibles somewhat prominent, though strongly
dentate; antenne long and slender, the first two funicular joints elongate;
femora denticulate beneath. [Type P. rufipes nov.].............. Roalius
Anterior cox separated by barely a third their width; prosternum not channeled;
mandibles short, strongly decussate and obtuse when closed; antenne
short; femora wholly unarmed. [Type P. tecta nov.].......... Palocopsis
Anterior cox separated by about their own width........................ 22
22—Prosternum perfectly flat and continuously so between the coxe; antennal
club smaller, the first segment more than half the mass; upper surface and

all the strial intervals densely clothed. [Type P. nescius nov.]....Palocus
Prosternum broadly impressed; antennal club more elongate-oval, subequally
trisegmented by the sutures; upper surface loosely clothed, the strial intervals
uniseniates | vipe Me sparsellus novellas ene ie ete Micropalocus
23—Mandibles long, prominent and internally straight; antennal club large,
oval, not very much shorter than the funicle; body suboblong-oval, very
coarsely and densely punctate, with widely and evenly separated squamules,

in single line on the strial intervals. [Type S. rugulosus nov.]...... Starcus
24—Mandibles strongly dentate and decussate..............0.0 0000 ce eens 25
Mandibles not decussate, except apically, falciform, the inner edges broadly
sinuate from apex to base and not evidently dentate; femora not spiculate

Beneath: sey MTs EU ES Toe 34
Mandibles not or but slightly decussate, but more or less distinctly dentate
WwithinvandiprominentewhensClLosecin nie eerela eke eieiaeneetea 35

Mandibles straight, prominent, not at all decussate, meeting on a straight even
to slightly irregular line when closed, the left mandible sometimes obtusely
dentate submedially within, or shorter than the right................... 45

BRAZILIAN BARINE 105

Mandibles peculiar and highly specialized, constricted subbasally, concave dis-
tally, widely separated and apparently moving in subvertical planes as in
Balaninus, the beak extremely long, arcuate and slender............... 66

25—Beak very thick, cylindric and feebly arcuate; antennal club moderate, oval,
gradually pointed and with distinct sutures; anterior coxe rather narrowly
separated; femora slender, not at all impressed beneath but minutely spicu-
late; body stout, very convex, glabrous and shining, with partially metallic
lustre! = [ty pemiVindlastrassnovalier- racer et Aces welder ohe an onto ene Neplaxa

Beak more or less slender, of the usual form in the tribe................4... 26

26—Prothorax abruptly and conspicuously tubulate at apex; beak separated by
a rather deep and sharply marked transverse sulcus; femora not spiculate
|GyeselersHel URC Tom Ah es oy aril as DU Oe Bao ee Be Oe ee a Ree ie ne 2,

Prothorax not or only gradually tubulate at apex; femora never spiculate. ...29

27—Body larger and more convex, glabrous or with scanty vestiture, the elytra
with or without sparsely scattered setiform squamules; anterior thoracic
stricture marked by strong sculpture; prosternum with or without short
spines in the male, the coxe narrowly separated. [Type V. dispersus nov.]

Vallius

Body very small in size, less convex and more elongate, wholly glabrous; femora
stillimore slender thoracic sticturelsmooth:. 22.5. 4-20es soe eee o- 28
28—Upper surface notably flattened, the elytra with very coarse deep grooves;
beak a little shorter and stouter. [Type C. subplanata nov.]....... Crostis

Upper surface not flattened; form still more elongate, the elytra with abrupt
but less coarse grooves; beak longer, more slender and more arcuate. [Type
OA IH OXE SOLON allots ch ee a aid. b ia EAR cuc Olea aca e CuO Pct seacoast Crostidia
29—Pronotum without trace of median tumid or cariniform line............. 30
Pronotum with the median line cariniform or feebly and obtusely embossed.. .33
30—Anterior coxe narrowly separated; body rather large in size, glabrous, but
with abruptly limited areas of dense scales beneath and a single small one
on each elytron behind the centre; prosternum unimpressed and not spinose
in the male. [Type Baris auritarsis Germ.]................. Megavallius
ATILETIORACOXceRWNGElysSepanatedem ey a Aseeioe scat Merson oe eee i eo tereietere a eas ail
31—Prosternum broad and nearly flat, not definitely modified anteriorly (2),
or with two long ante-coxal spines and a large deep fossa (co); anterior
coxe separated by about one-half more than their width; beak very moderate
in length, arcuate and notably thick; body glabrous, the elytra with a
short posterior discal, and a subscutellar, streak of pale squamules; scutellum
quadratetny iiy per! tobloneulamovalisanae ccs] aehye ne oe aie roe ere: Dealia
Prosternum before the cox with a wide and very shallow canal, the coxe less
remote; prosternum apparently not spinose in the male; body smaller, more
abbreviated and ovoidal, subglabrous throughout; scutellum smaller. [Type

SROSP NGL OW se | Meew eee nn eie oS cee ast abies aoe Sas ceevere as Stethobaropsis
Prosternum with a small deep foveiform fossa near the anterior margin; beak
Kay oyegey ca: Gay COUN IE oc (6. So's ace belt toch ee Coit IEC ies SLR REE EF ce cE ae one ae 32

32—Body suboval, almost glabrous, the thoracic apex briefly and feebly sub-
tubulate; scutellum very small; antennal club gradually formed; proster-
num bispinose in the male. [Type D. gradata nov.]............ Dialomia
Body more elongate, suboval, with more pronounced subapical prominences on
the elytra and not so glabrous; thoracic apex more tubulate, the tubulation
very pronounced, though gradually formed; antennal club larger, abrupt
and with coarser sutures, the female alone known at present. [Type £.

aT BETES NON 7) [ses 6 aleksn, Ore Poe Rey ods cited eA AAR LE Aut AIR ee aE Eudialomia
33—Body narrowly elongate-suboval, densely sculptured throughout and sparsely
squamulose; beak thin; antennal club slender; prosternum strongly bi-
spinose in the male and with a very deep circular pit. [Type L. densus nov.]
Leptoladustes

106 MEMOIRS ON THE COLEOPTERA

Body more broadly subrhombic-oval, more or less densely sculptured throughout
and sparsely squamulose, with a basal and post-median denser streak on
each elytron; beak thickened basally; antennal club small, more broadly
oval; prosternum not impressed and without spines in the male, the coxe
narrowly ‘separated. [Type L. msignts novidliiw. iene oh eee ee Ladustes

34—Body stout, rhomboid-suboval, very coarsely and densely sculptured and
with scattered slender squamules, which are more minute beneath; pronotal
sculpture coarsely strigose; beak strongly arcuate, arising abruptly and
almost perpendicularly from the head, the reéntrant angle very deep in
profile and sulciform; anterior coxe well separated, the male prosternum
with two long slender processes. [Type S. armata nov.]........ Saldiopsis

Body less broadly rhomboidal, the pronotum not strigose but discretely punctate,
much less abruptly tubulate at apex; anterior coxze narrowly separated;
prosternum obliquely bispinose in the male; beak similarly very arcuate
and joining the head almost perpendicularly. [Type P. conjunctus nov.]

Pseudosaldius

Body narrowly subrhombic-oval, feebly squamulose and very small in size, not
so strongly sculptured as in Saldiopsis, the pronotum more loosely strigose
as a rule; beak rather slender, very arcuate, not so abruptly demarcated
from the head as in the two preceding; anterior coxe very narrowly sepa-
rated; prosternum bispinose or unarmed in the male; prothorax more or

less\conicalunsforma || lypeeea caducus movela-- ese eee Leptosaldius
35—Upper surface more or less conspicuously squamose; femora never spiculate
benewrthi sd sycndacee Lees SO IE ree SS eee eee 36
Upper surface, excepting the scutellum, glabrous, the lower with small sparse
Squat Ules|s eres id Smsdespste ass Wisi ches kodts ee Tem Oi al el ot kore arene 43

Upper surface in great part glabrous, always excepting one or two densely squa-
mose areas at each side of the invariably glabrous scutellum, the entire under
surface densely and conspicuously clothed with pale scales in typical species.

44
36—Elytra with lineate arrangement of the scaly ornamentation............ 37
Blytraswithout lineatetonnamentation en. shie see eer eet tote ee 39

37—Pronotum polished, glabrous and smooth; beak very arcuate; prosternum
obtusely canaliculate, the coxe very moderately separated; legs rather long
and slender; elytral suture with narrow dense vitta of pale scales in the
ty pes Type: Rabsparitia- now) ah actaear eae ee ee Ternova
Pronotum not glabrous, and always distinctly punctate.................... 38
38—Form rhomboid-suboval; pronotum with lateral, the elytra with lineiform,
discal dense lines of scales in various positions; thoracic punctures always
dense but discrete; beak long and slender, arcuate;. male prosternum
generally but not always with two long slender processes. [Type Centrinus
GISHNGHUSVB OME o-5 ecco hese ARO Se Le eee Linonotus
Form more evenly oval or less evidently rhombic; pale ornamentation consisting
of narrower and sparser squamules, usually evident on all the strial intervals
at base, and sometimes in short lines at the middle, these forming a chevron-
like fascia; beak slender, strongly arcuate; male prosternal spines very

slender, more oblique. [Type P. sedulus nov.]............... Parasaldius
39—Bodyimoderatelyzsmalllinusizess- cea ot. erreieia eee ie ene 40
Body more minute, with rather close vestiture as a rule, the dense pronotal
sculpture usually motratvallistroiionn eyo ere eee ee eee 42

40—Form moderately broad, oval, polished and glabrous, the elytra with single
series of minute and suberect hairs; beak rather thick, compressed, arcuate;
antennal club gradually formed; prosternum flat, the coxe moderately
separated; prothorax briefly tubulate at apex; scutellum small. [Type D.
habilas: movd sib: i iode feeder are a eta Be ee ee ee Dericinus

BRAZILIAN BARINE 107

Form very obese and convex, with peculiar tufted vestiture, the pronotum cari-
nate centrally and with loose strigose sculpture; beak rather thick, strongly

sculptured.» [Typer Centranuseperdim \Pasc.|)..4:). 2 tls es ees Ortycus
Form more narrowly ovoidal, with normal sparse vestiture, which is generally
SUblinearontnerstnialMntervell caer en pense mebyenanl oh atee-tere tere siistaver rtp eelatsll- ta ley ey = 4I

41—Pronotum shining, with isolated punctures; beak moderate, arcuate; pro-
sternum flat, foveate near the anterior margin, the coxe rather well separated;
male apparently never having ante-coxal spines. [Type S. semalucidus nov.]
Saldius
Pronotum densely strigose; anterior coxe very moderately separated; beak
moderate, arcuate; prosternum foveate near the anterior margin; male
-with or without short ante-coxal spines. [Type C. strigicollis Csy.]
Centrinites
42—Beak rather thin, arcuate; body narrowly subovoidal, densely sculptured as
a rule; prosternum with or without small ante-coxal spines. [Type C.
helomtissEsy lens fe ee pM cle enti NY SSeS s Centrinopus
43—Anterior coxe narrowly separated; prosternum with two short ante-coxal
spines in the male; beak thickened basally, strongly sculptured; femora
non-spiculate. [Type Centrinus ruficornis Boh.]............--- Anavallius
44—Anterior cox narrowly separated; prosternum without ante-coxal spines in
the male; beak thick, compressed and strongly costulate at the sides in
typical species; femora not spiculate beneath. [Type Baris squamipes
Germ: | A eater OR eae: terre oealed sda loity Nt ovareles oni ahaa eens es Valliopsis
45—Beak rather short, very thick and compressed, obtusely angulate above
near basal third and separated from the head by a very large and deep
sulcus, apparently not differing essentially in the sexes; antennal club short,
almost rounded; prothorax very abruptly tubulate at apex; legs simple,
the femora not spiculate; body oblong-suboval, the integuments glabrous.

WD tgete CA allio anGurren a | Siac (ice ee Gen Ae earn eee ern Ara Zygozalestes
Beak longer and more or less of the usual form in the Centrinini; femora non-
RYOHO Se 6 oy bic a 5 Neha Bn ie OO Po eC ne ae aa 46
46—Beak moderately elongated... .......... 0.2 cece cee ete eet eens 47

Beak notably long and arcuate; body unusually elongate-rhomboidal in form,
in great part glabrous and shining, wholly glabrous in Dimesus tnornatus;
prothorax tupulatevat apex. 56) iIl . sine sy alls ete gels vee ail ets 64

47—Body smooth and.shining, glabrous or with very scanty vestiture, excepting
the scutellum in Liocentrinus; prosternum but rarely bispinose in the male
—only observed thus far in Macrorevenad...... 1... 0s cece eee eee eee 48

Body more opaque, more or less closely clothed with scales or squamules, ... . 56

48—Scutellum large, quadrate, very densely albido-squamose; beak rather thick,
compressed, separated from the head by a very feeble impression; prothorax
barely at all subtubulate at apex; prosternum obtusely canaliculate; anten-
nal club small; elytra moderately grooved. [Type L. scutellatus nov.]

Liocentrinus
Scutellum small or moderate, always glabrous...............+2- 2+ eee sees 49
Ag-—Prothorax tulbtlaterabapex. 0. 1.5 2b IMOe Gh. smells os 8 es aie ee aalelye Reine 50
Prothorax not at all tubulate at apex; body small in size................--. 54
50—Thoracic tubulation very abrupt and sharply defined................-. 51
Thoracic tubulation rather gradual in formation............-.-.20e+ see eee 53

51—Antenne subbasal in insertion, the beak normally convex throughout,
separated from the head by a feeble impression; prosternum deeply canalicu-
late, the coxee well separated; scutellum flat and in close contact with the
elytra, the latter moderately grooved; fourth tarsal joint and claws moderate.
(iy pemez mapenpul it OG A Sree. Paytide ators oie ela 2 ole 'o (2a bs elel 2 Shovel Zalestes
An enne similarly subbasal, the beak separated by a feeble impression but, in

108 MEMOIRS ON THE COLEOPTERA

the female, extremely flattened distally; prosternum broadly convex, with
two small deep fovee near the apex, separating the coxze by much more
than their own width, the large broad flat plate behind the coxe sinuous at

tip, with rounded angles; scutellum small, moderately free; fourth tarsal
joint and claws long and unusually developed. [Type S. platyrhinus nov.]
Sunilius

Antenna imedialvin Ansertion::smevae cient es eee eae hance aera anes eee eae 52
52—Scutellum flat, in close contact with the elytra; beak rather thick, separated
by a deep transverse sulcus; prosternum with a sharply defined and elongate-
oval, closed and punctured concavity, the coxze well separated; antennal
elubismallin [ype ueisenaterosiris novel ere: eetelet te Reveniopsis
Scutellum transverse, somewhat convex, free; beak and antenne somewhat as
in the preceding, the body very much larger in size; tibie more or less
inflated in the male, the male, as a rule, with two short prosternal spines;
elytra strongly grooved. [Type M. convexa nov.]........... Macrorevena
53—Antenne subbasal in insertion, especially in the female, notably long and
slender, the two basal joints of the funicle much elongated; beak rather
slender; prosternum almost flat, the coxe rather widely separated; upper
surface sparsely punctulate throughout. [Type R. sexualis nov.]...Revena
Antenne far behind the middle, moderately elongate, the second funicular joint
much shorter than the first, the beak subsimilar in the sexes and separated

by a rather deep sulcus; prosternum broad and flat, having two rapidly
pointed short erect plates. in the male, the coxe separated by fully one-half
more than their width; body much smaller than in the preceding, about

as in Clandius, but not herissate, though having a few decumbent squamules.
[HypeSscunetpennis “s0V.)| Fe ae ee ees hen eee Selasella
Antenne inserted barely behind the middle, much less elongate; beak less slender
and less elongate than in Revena, nearly straight, curving at base; prosternum
narrowly canaliculate, the cox moderately separated; upper surface sparsely _
herissate, the elytra strongly grooved; scutellum very small; body very
much smaller in size, more abbreviated and oval, and with relatively larger
prothorax si liypenGn cepralores move eae rn ar tert sine erent Clandius
54—Beak short and rather thick, compressed, separated by a coarse and deep,
transverse sulcus; antennz medial; prosternum flat, the coxe widely sepa-
rated; upper surface with strong but not dense punctures, the elytra deeply
grooved; scutellum moderate, subquadrate, not in very close contact with
therelytray lly pem ize plancpecttis moval ysis iis aire Peclaviopsis
Beak longer, very, slender: thickened basallyau a. a.) 2 2 seiner de tee ener 55
55—Antenne submedial, rather short but slender and with small club; beak not
separated from the head by any kind of impression; prosternum canaliculate;
body oval; scutellum oblong, more or less free. [Type P. hispidicollis nov.]
Peclavia

Antenne very near the base of the beak and on a pronounced basal thickening,
rather long and well developed; prosternum impressed along the middle,

the coxz well separated; body more oblong-ovoidal and very smooth, the
prothorax relatively larger; scutellum flat, in closer, though not very close,
contact with the elytra. [Type M. basalis nov.]............ Microzalestes
56—Anterior coxe very widely separated; prosternum flat, not spinose in the
male. Beak not separated from the head by an impression, straight (?),
feebly arcuate and less slender (co); antenne just behind the middle in
both sexes, the club very short, almost globular; body oval, with large and
smooth, laterally squamose prothorax, the elytra closely sculptured and with
partially lineate, dense vestiture. [Type R. marginatus nov.]....Remertus
Anterior cox moderately to rather narrowly separated; prothorax relatively not
Toe Eig: een ear ee ane CPU AE Ose Cer See OS TSG Cte bic.6 OO pg > .D.0c 57

BRAZILIAN BARINZE 109

57—Mandibles somewhat as in Gereus, acuminate and prominent, straight
within, the left with feebly irregular edge, the right perfectly straight, both
with a feeble external tooth near the base, not so conspicuous as in Gereus;
beak slender, smooth, cylindric; antennal club larger than in allied genera;
prosternum not impressed, the coxe moderately separated; femora rather
inflated; body closely clothed throughout. [Type F. duplex nov.]
Forandia
Mandibles straight within and even, but obtusely bilobed at apex; beak thin,
cylindric; antennz long, slender, the club peculiar, widest behind the middle,
thence gradually tapering, the basal segment much less pubescent; anterior
cox widely separated, the prosternum with two spines in the male, which
are separated by a very deep circular pit; body oblong-ovoidal, coarsely
sculptured and opaque, with large prothorax and very sparse inconspicuous
Vestituce.: 1, LL ype MenGarMefer MOVal on bonte aod sal ele re seretefoinis Melampius
Mandibles and antenne somewhat as in Gereus, the former straight within and
having a sharp and prominent external tooth behind the middle, the latter
with the second, as well as the first, funicular joint elongate, the club moder-
ate, oval; body much more abbreviated and oval than in Gereus; beak
moderately long, generally much flattened apically; prosternum without
transverse constriction or longitudinal impression, the scales radiating from
a central point, spinose or unarmed in the male; coxe moderately separated.
[Py pe/Grbellalesmov ales crs st. theyo aia atest es Hise o> Boras Fh Brachygerzeus
Mandibles subquadrate, with the inner straight edges even, having externally an
obtuse latero-apicall tooth on each... .2.:6f5 20. eo 2 as pein Be le ee see es 58
Mandibles with the inner edge very even, but in form they are curved outwardly,
sharply pointed and come in mutual contact when close only at base... . .59
Mandibles with straight inner edge, which is generally even, becoming minutely
irregular in some genera, the tips usually rather sharply pointed, the outer
edges evenly oblique throughout the length... .........-...-..+++-0555 60
58—Body oval, with close and even, conspicuous vestiture; beak slender, cylin-
dric, joining the head without trace of transverse impression, as also in the
three preceding genera; prosternum flat, the coxe moderately separated;
antennal club elongate, pointed; femora not inflated. [Type F. carinulata
TOA | RROD AEROS: H08G By nies cle coke Lisbepavahe, o haPahe ya, aheys sad Behabenate Forandiopsis
Body narrower and rhomboidal, sparsely and much less conspicuously, though
evenly, squamulose; beak very slender except basally; antennze rather long,
with an abrupt and moderate club; prosternum flat, the coxe moderately
separated; femora slender; scutellum canaliculate. [Type C. mundula nov.]|
Centrinaspidia
59—Body as in Centrinaspis in habitus and vestiture, the latter on the elytra
also suggestive of Gereus; prosternum transversely sulcate anteriorly, not
spinose in the male, the cox moderately separated; legs slender; size very
Silaila elvis Ue delicatuld NOV.\ 00. 262. as nese 2 oie ae Microbaridia
60—Mandibles very even and straight within. Body more or less rhombic-oval,
with plentiful vestiture, very varied in design; beak rather slender, arcuate;
basal joint of the antennal funicle generally almost equal to the next three
combined, the second joint not elongate and but little shorter than the first,
as it is in Gereus, where also the mandibles differ in having an external
basal tooth; prosternum not much modified; anterior cox well separated,
the prosternum with or without two always very moderate spines in the
male. [Type Centrinus perscillus Gyll.| | Gereus Champion nec Pascoe;

DD ay fe OS CESSES AS ee ETO O ERECT OTTO CIPO RS TOI Centrinaspis
Mandibles slightly irregular on their inner edges, though never definitely dentate.
61

61—Basal segment of the antennal club very long, constituting two-thirds the

1 Ke) MEMOIRS ON THE COLEOPTERA

mass; body oval, with even and close vestiture, somewhat as in Forandia
and Forandiopsis; beak short, rather thick, joining the head without trans-
verse impression; eyes notably small; prosternum broadly, shallowly con-
cave, the coxze well separated. [Type M. unzformis nov.]....Microforandia
Basal segment of the antennal club always less than half the mass........... 62
62—Anterior coxe narrowly separated. Body broadly oblong-oval, with con-
spicuous variegated vestiture; beak smooth, cylindric, separated from the
head by a feeble transverse impression; prosternum feebly impressed,
slightly bitumorose anteriorly; upper surface closely punctate. [Type C.
binocularas Nove) Meas 2 RE ee ha Te eee Calorida
Anterior coxe well separated; body densely punctate throughout........... 63
63—Antenne very moderate in length, with the outer funicular joints frequently,
and the base of the club apparently always, dentate in the male, inserted
beyond the middle of the beak. [Type O. creperus Boh.]...Odontocorynus
Antenne long and more slender, medial in insertion; beak longer and more
slender) |My pexejlaviscuiismovelaeee ee a eee eee Ladustaspis
64—Antennal club solid, cylindric and very elongate; beak separated from the
head by a moderate transverse impression; anterior coxe rather well sepa-
rated; prosternum bispinose in the male; elytra with dense scales in one or
two lines or basal areas on each. [Type Calandra signum Fabr.|

Cylindrocerus
Antennal club normal and with distinct sutures; prosternum strongly spined in
thenmale; narrowly canaliculates eset it alee ete 65

65—Prosternal spines long, flattened and gradually sharply pointed; body only
moderately elongate, variably ornamented; anterior tarsi of the male not
modified ia [phy DER D»s gem 7771s De aASCs | eeeetee dene eter ae ee Dimesus
Prosternal spines short, broadly triangular; body more elongate-rhomboidal;
integuments wholly glabrous; anterior tarsi of the male very broad and
conspicuously fringed. _ [Type Cylindrocerus flabellitarsis Boh.]
Dactylocrepis
66—Body stout, rhomboidal, large in size, shining, smooth and wholly glabrous;
anterior coxe widely separated, the prosternum with two long, slender and
acutely pointed, outwardly curved porrect processes in the male; prothorax
abruptly tubulate at apex; scutellum transverse, free;. legs slender, the
femora not spiculate, the tarsi broad, densely pubescent; anterior legs
notably elongate in the male. [Type JN. sarpedon nov.]......... Nedestes

There are many isolated or exceptional types of organic structure
among these hosts of genera, such as Neplaxa, Crostis, Crostidia,
Garnia, Zygozalestes, and Nedestes, with its very remarkable man-
dibles.

The genus Gereus Pasc., of the Mexican regions, is allied to
Centrinaspis but differs in two important particulars, the mandibles
having, externally at base, a prominent obtuse tooth, of which
there is no trace in that genus, and the first two joints of the anten-
nal funicle are both greatly elongated, while in Centrinaspis the
second is much shorter than the first, which is as long as the next
two and one-half to three joints combined.

Two distinct generic types were confused by me (Mem. Col. IX,
p. 390) under the proposed name Linogereus, and, as a definite
species, the Centrinus lineellus, of LeConte, was named as the type,
and as species of this peculiar type prove to be merely Centrinaspis,

BRAZILIAN BARINZE Bri

it becomes necessary to announce Linogereus as a synonym of that
genus. Gereus trivittatus Chmp., which I associated with lineellus
and others to form Linogereus, is, however, truly the type of a
distinct and rather isolated genus, it having long straight and
closely connate tarsal claws, as in the similarly aberrant Acentrinops,
so that it becomes necessary to propose a distinct generic name for
it as follows:

Crotanius n. gen.—Body rhomboid-oval, closely sculptured and with dense
orange scales, forming three pronotal vitte and, on the elytra, one involving the
first, and another most of the sixth and seventh, intervals, on each; under surface
and legs, with separated white scales, becoming dense and orange on the met-
episterna and anterior parts of the prosternum; beak rather long and arcuate,
the mandibles prominent when closed, with straight inner and sinuate outer
edges and acute apices; antenne medial, with moderate oval club, the first two
funicular joints greatly elongated; prosternum scarcely impressed and with a
very small acute tubercle before each coxa in the male, the coxe rather narrowly
separated; legs somewhat slender, simple, the tarsal claws long and connate;
thoracic lobe with slightly upturned edge, the scutellum subquadrate, nude,
wider at the sinuate apex than at base, with acute angles and impressed surface;
striz strong and deep, the intervals confusedly punctate. Type Gereus trivittatus
Chmp. Central America.

In the above table of Brazilian genera Crotanius comes in the
first or Diastethus section, where, as can readily be imagined by its
general habitus and ornamentation, it is completely inharmonious,
as is also the Texan genus Acentrinops, which also has to be similarly
assigned, because of its long and closely connate ungues.

Some of the North American genera, besides those mentioned,
which should be included in this tribal group and which are repre-
sented in my material, are Pachygereus, Pycnogereus, Parager us
(new name for Gergopsis Csy., preoccupied by Gereopsis Chmp.),
Stereogereus, Conocentrinus, Pachybaris, Leptocorynus, Pseudogereus,
Pseudocentrinus, Glyptogereus, Zygobaris, Zygobarella, Neocratus,
Stethobaris, Idiostethus, Lasiobaris, Catapastus, and related genera.
The ancient forms clustering about Eisonyx, should either enter
this tribe or a special tribal group, this remark applying as well to
the very aberrant Zaglyptus, of LeConte; Eunyssobia and Plocamus
might also be considered members of this tribe. There are easily,
in fact, some one hundred and fifty genera of Centrinini in North
and South America, and the vast majority of these genera are in
no way “‘opinionative.”’

Stegotidius n. gen.

In this genus the mandibles, though straight, are rather short
and their inner margins are very slightly uneven, the beak not
very slender, strongly, evenly arcuate and coarsely though not
densely sculptured in both sexes, and separated from the head by
a moderate transverse impression, the antenne rather short, with

ee MEMOIRS ON THE COLEOPTERA

the first funicular joint somewhat longer than the next two com-
bined, the club narrow, densely pubescent and gradually pointed.
The prosternum has a deep canal, which includes a very deep
circular pit between the strong ante-coxal spines in the male, the
coxe separated by two-thirds of their width. The femora have a
cluster of short spiniform serrules beneath beyond the middle, and
the tarsi are moderately dilated. The tarsal claws are straight in
axial view, but, though extremely approximate, are not actually
connate at base. The type is the following:

Stegotidius fasciatus n. sp.—Body stout and very convex, rhombic-oval, deep
black, polished, very smooth and glabrous, each of the very coarse and sparse
punctures of the under surface inclosing an extremely minute pale squamule;
each elytron has an irregular red fascia at base, the first interval and large humeral
spot black; beak rather longer in the male than in the female, somewhat over
half as long as the body, not compressed but coarsely sulcate at the sides basally,
finely, sparsely punctate above; antennz medial in both sexes; prothorax three-
fourths wider than long, inflated and with subparallel sides basally, the sides very
rapidly converging and distally sinuate beyond about the middle; surface smooth,
sparsely punctate on the tubulate apex, grooved and punctate along the basal
margin, the lobe rounded, sinuate at apex; scutellum convex, smooth, wider
than long, rounded at base, broadly sinuate at apex; elytra as long as wide, a
fifth wider than the prothorax, rather sharply parabolic, with somewhat prominent
humeri; striae very deeply impressed, subpunctate, the intervals strongly and
subequally convex, smooth; metasternum with a very deep elongate-oval fovea;
abdomen (co) with a feeble and more finely though sparsely punctate basal
impression; male somewhat larger than the female and with very strong, upwardly
and outwardly curvate prosternal processes, extending far beyond the head.
Length 5.7-7.7 mm.; width 3.75-5.0 mm. Brazil (Rio de Janeiro). Nine
specimens.

It seems almost certain that this species must already be described,
but I am unable to find any reference to it; at first it appeared
to be Centrinus meigeni Boh., but the statements in the description
that the strial intervals are flat, and the abdomen obsoletely
punctate in that species, are so completely reversed in fasciatus
that I hardly think they can prove to be identical; in fasciatus the
abdominal punctures are very coarse and deep, though remote.
It is interesting to note that the female is smaller than the male,
as in certain Madarids.

Camelodes Pasc.

The peculiar feature of this genus is a very high tumid obtuse
carina, having a polished summit and occupying rather more than
basal half of the pronotum, the entire body otherwise, excepting
the beak and the legs partially, being finely, densely opaque, smooth
and glabrous. The short mandibles and the tarsal claws are as in
the preceding. The type is as follows:

Camelodes leachi Kirby—Broadly rhomboidal, only moderately convex, deep

*

BRAZILIAN BARIN 16g)

black throughout; beak long, arcuate, cylindric, feebly compressed and more
punctate at the sides basally, sparsely and very moderately punctate and nearly
as long as the elytra, the antenne medial, the second funicular joint even some-
what longer than the first, the club narrow, long and very gradually, sharply
pointed, finely, densely pubescent, the basal segment fully half the mass; pro-
thorax one-half wider than long, the sides subevenly arcuate, becoming parallel
basally, tubulate at apex, impunctate; elytra scarcely as long as wide, triangular,
with rounded apex and very feebly arcuate sides, the humeri very prominent,
with shining summit; striz very fine, minutely, remotely subpunctulate, the
first four dilated at base; intervals very flat, impunctate; femora acutely spicu-
late and with a few minute serrules beneath beyond the middle. Length 7.6-8.5
mm.; width 5.7-6.2 mm. Brazil (Rio de Janeiro). Three males, the female
not at hand.

The prosternum in the male has a very deep rounded excavation
between the two short, slender and somewhat contorted ante-coxal
spines, the coxee separated by four-fifths their width. The under
surface of the body throughout has fine and remote punctures.

The species described by Solari (Ann. Mus. Civ., Genova, XLII,
p. 438) under the name Camelodes pascoei, it seems to me, may quite
possibly prove to form a distinct though allied genus; the body is
strongly shining throughout.

Stegotes n. gen.

This genus is composed of a very large number of polished,
glabrous, rhomboidal species, resembling each other so closely in
external appearance in some parts of the series, that any exposition
of them affording a sure means of identification, in the absence of
actual types, is practically an impossibility. Numerous Mexican
Stegotes were described as members of the genus Diastethus by
Mr. Champion, but, in common with Gladosius, they are readily
distinguishable from that genus by the sharply canaliculate pro-
sternum and lack of abruptly defined patches of dense scales beneath.
In both Gladosius and Diastethus, the body in most of the species
is of a brilliant metallic color, while no such feature is anywhere
discernible in Stegotes, the only variation from a uniform and
intense black being the rufous prothorax of a number of species.
The body is never quite as large as in Camelodes, and, in some
species, is moderately small in size. I have endeavored below to
separate the many species at hand as carefully as possible, but fear
with only moderate success as an aid to identification; it is wholly
useless to attempt to identify any of them surely with the species
published by Schénherr, which, however, do not seem to be numer-
ous:

“Body. deep blackeancdishimine: throughout: ...yoje ces sj.pacsteicteo de ctauies orsnetoiales <ueegjee 2
Body black, the prothorax rufous—bright to rather obscure...............-. 40
2—— PrOnOuumne VEMIVaC OM eXa reed aeewedere ey « auclieyc act eye <: aliswes euwkedialoy se ctjeeeiiseal onoWe [oreyer cr ails 3

T. L. Casey, Mem. Col. X, Aug. 1922.

114 MEMOIRS ON THE COLEOPTERA

Pronotum gibbous medially, but never at all abruptly; size more or less notably

small, the beak rather long slender. .)-)-.e03 «ae tetot eietete eee eer 33
3—Beak longer and thinner, generally about as long as the elytra, sometimes a
little shorterin ‘the malenwy is FAM Le ee eee ae eee 4
Beak always distinctly shorter than the elytra and less slender, asarule....... 19
4—Elytral striz deep, abrupt and groove-like.... 1.0.0.0... 0. c cece cece ners 5
Elytral striz feeble, finely and feebly punctulate: (0). .0°.) oo. ieee asi es nf
5—First three joints of the antennal funicle much elongated; prosternum appa-
Tently not armedumthemalewaer. -: cae eee ciel een tenon 6

First two joints not quite so elongate as a rule, the third through slightly elongate,
relatively very much shorter; antenne a little shorter, sometimes thicker;

prosternum not armed in the male so far as known..................45- 1
6—Elytral humeri notably prominent, extending well beyond the side limits of the
PrOthorax’ sy. .60G PSs TE WN a aes ln, oes Sse Sie tare a cae etna ae ee i
Elytral humeri feebly prominent, extending but little beyond the base of the pro-
thorax, whichusrelatively larcer thaniusual |. seit tales erent 12
7—Prosternal channel broad, shallow and not sharply defined................ 8
Prosternal channel narrower and deeper, abrupt and sharply defined; elytral
grooves becoming fine punctured striz at the sides..................-.. II

8—Prothorax gradually broader and with feebly arcuate sides from constriction
to basal fifth, there rapidly rounded and thence slightly converging to the base.
Body sharply rhomboidal; beak strongly arcuate, cylindric, sparsely punc-
tate, more closely toward base, very nearly as long as the elytra, the antenne
at two-fifths, slender, obscure rufous, with narrow club; prothorax one-half
wider than long, punctured at base medially, the lobe very gradual; scutellum
transverse, smooth, feebly convex; elytra triangular, about as long as wide,
with feebly arcuate sides and narrowly rounded tip, less than twice as long
as the prothorax (<”), nearly so ( 2), the grooves strong, minutely punctulate
along the bottom, more so as usual toward the sides; intervals smooth;
under surface moderately and sparsely punctate; male—if correctly identified
by a very slightly shorter beak and elytra—without prosternal spines, the
prosternum with rather plentiful pale squamules; anterior femora bispiculate
beneath. Length 6.4-7.5 mm.; width 4.2-5.0mm._ Brazil (Rio de Janeiro).
‘Three specimens? 451. news Sos ye eaters ere he rele ale rhombicus n. sp.
Prothorax with subevenly arcuate sides from base to constriction; male appa-
rently without prosternal spines; antenne similarly inserted near basal two-

9—Metasternum with a deep elongate-oval central fossa. Body more narrowly
rhombic-suboval; beak slender, arcuate, over three-fourths as long as the
elytra, cylindric, finely, sparsely punctate, more coarsely and closely near
the base; antennz not quite so long, piceous, the third joint not quite twice
as long as wide; prothorax longer than usual, only two-fifths wider than
long, rather rapidly narrowing anteriorly, smooth throughout, except the
sparse punctures in the anterior constriction, the basal lobe broad, less
gradual, broadly and obtusely rounded; scutellum smaller, transverse; elytra
nearly a fourth longer than wide, parabolic, with broadly rounded apex,
hardly twice as long as the prothorax; grooves strong and deep, minutely
punctulate, the first three slightly dilated at base—not at all so in rhombicus;
under surface moderately and sparsely punctate, the abdomen impunctate,
except laterally; anterior femora with a single small sharp tooth at three-
fifths. Length 7.2 mm.; width 4.3 mm. Brazil (Chapada). December.
One SPECIMER Teac TORS eo ee RE Ses ae ater libertus n. sp.
Metasternum finely sulcate along the median line as in rhombicus............ 10
10—Form sharply rhomboidal; beak slender, cylindric, strongly arcuate, as long
as the elytra, minutely, sparsely punctate, coarsely but not densely so at

BRAZILIAN BARIN . 115

base; antenne inserted near basal third, slender, blackish piceous, the third
joint twice as long as wide; prothorax not quite one-half wider than long,
the sides strongly arcuate, gradually subparallel posteriorly, the apex broad,
almost half as wide as the base, the constriction with fine and sparse punc-
tures, the basal lobe with a few small and sparse punctures, gradual, broadly
subtruncate; scutellum transverse, with transverse discal canaliculation;
elytra triangular, with feebly arcuate sides and narrowly rounded apex, a
little longer than wide, three-fourths longer than the prothorax; grooves
sharply defined and deep, almost impunctate, not at all dilated at base;
inferior flanks of the prothorax almost impunctate, except at apex and base;
punctures sparse throughout; anterior femora with two small and slender
spicules. Length 5.5 mm.; width 3.6 mm. Brazil (Santarem). One
SPECLINED: Ait. eee RE ey syst es actin: akosshie.a) oi sakevnsas coruscans n. sp.

Form less sharply rhombic; beak even longer and more arcuate, especially

i

toward base, fully as long as the elytra, the sparse punctures not so coarse
basally; antenne slender, dark rufous, the third joint fully twice as long as
wide; prothorax a little more than one-half wider than long, the sides more
rapidly converging and more feebly arcuate from base to constriction,
becoming parallel only near the base; apex narrower, barely two-fifths as
wide as the base; punctures nearly similar, the basal lobe less obtuse and
with the punctures stronger; scutellum transverse, broadly, evenly and
feebly concave; elytra triangular, with strongly arcuate sides and very
narrowly rounded apex, not longer than wide, two-thirds longer than the
prothorax, the grooves similar; inferior thoracic flanks deeply and evenly
punctured throughout; anterior femora with the inner spicule slender but
distinct, the outer very minute; femora finely sparsely punctate. Length
5-7 mm.; width 3.75 mm. Brazil (Santarem). One specimen.

fulvicornis n. sp.
Sides of the prothorax becoming abruptly parallel and nearly straight in
basal third; form rhomboidal; beak slender, moderately arcuate, fully as
long as the elytra, finely, toward base rather coarsely and more closely,
punctate; antenne scarcely behind the middle, slender, dark rufous, the
third joint more than twice as long as wide; prothorax fully one-half wider
than long, the sides subangulate, though rounded, near basal third, thence
strongly converging and very feebly arcuate to the minutely, sparsely
punctured constriction; apex three-sevenths as wide as the base, the ba-
sal lobe rather rapidly formed, feebly punctulate and somewhat strongly
rounded; scutellum very short, broadly, feebly concave; elytra slightly longer
than wide, triangular, with feebly arcuate sides and moderately narrow
rounded apex, two-thirds longer than the prothorax, the inner deep grooves
not dilated at base; inferior thoracic flanks rather finely, sparsely punctured
throughout; femora with strong but well separated punctures, the anterior
with two small and very slender, equal spicules. Length 5.0 mm.; width
3-3 mm. Brazil (Rio de Janeiro). One specimen...... subangulatus n. sp.

Sides of the prothorax as in the preceding, except that the posterior subangulation

is more broadly rounded and a little more distant from the base, the sides
before them less strongly converging and more arcuate to the tubulation,
which is very slightly longer and broader, similarly punctulate; beak nearly
similar, but with the upper surface broadly tumid basally, and not perfectly
even in curvature as in the preceding; prothorax scarcely one-half wider
than long, the basal lobe more obtusely rounded at apex; scutellum trans-
verse but not so short, flatter; elytra almost similar but with rather more
arcuate sides and more broadly rounded apex; under surface nearly similar,
except that the met-episterna are a little broader; legs notably shorter, the
femora still more coarsely and very densely punctured. Length 5.25 mm.;

116 MEMOIRS ON THE COLEOPTERA

width 3.35 mm. Brazil. A single specimen, sent me without further
indication of locality by Desbrochers des Loges............. agrestis n. sp.
Sides of the prothorax rather strongly and evenly arcuate throughout, gradually
becoming subparallel basally, but without trace of rounded angulation; beak
slender, moderately arcuate, fully as long as the elytra, finely punctate,
strongly but loosely so basally; antennz submedial, slender, piceous, the
third funicular joint much more than twice as long as wide; prothorax
large, somewhat more than one-half wider than long, the sides subevenly
and strongly arcuate, gradually becoming subparallel basally; tubulation
distinctly but not closely punctate, long, three-sevenths as wide as the
base, the basal lobe rather short, gradual, with broadly sinuate apex, also
with very feeble punctulation; scutellum transversely subquadrate, nearly
flat and smooth; elytra triangular, very little longer than wide, three- .
fourths longer than the prothorax and only a little more than a sixth wider,
the sides broadly arcuate, the apex moderately narrow and rounded; grooves
not dilated at base; anterior femora very feebly bispiculate; inferior thoracic
flanks distinctly, sparsely punctate; femora rather coarsely but loosely
punctate. Length 5.75 mm.; width 3.6 mm. Brazil (Rio de Janeiro).
October. “One specimien: 2004; tanta ete ee A eee ee carbo n. sp.
12—Body subrhombic, smooth and polished as usual; beak long, slender, moder-
ately and evenly arcuate, fully as long as the elytra, finely, sparsely punctate,
more distinctly toward base; antennz long and very slender, piceous, the
fourth joint twice as long as wide, the third much more, the first and second
very elongate; prothorax large, a little more than one-half wider than long,
the sides strongly arcuate, gradually subparallel in nearly basal half, finely,
sparsely punctate; tubulation two-fifths as wide as the base, the basal lobe
broad, feebly punctulate, subtruncate at apex; scutellum nearly flat, trans-
versely quadrate; elytra slightly longer than wide, triangular, with feebly
arcuate sides and moderately narrow rounded apex, almost four-fifths longer
than the prothorax, but barely a sixth wider, the humeri only moderately
prominent; grooves moderate, not dilated at base; femora coarsely, rather
closely punctate, the anterior only very minutely spiculate; metasternum
with the median stria at the bottom of a broad impression posteriad. Length
6.2 mm.; width 3.75 mm. Brazil (Rio de Janeiro). October. One speci-

TIRES eh aie ch ceecene od PE Stet Rt RG euctee ete tenuicornis n. sp.
13—Prosternum almost glabrous and with rather wide deep canal; body larger
TE SIZ MAE, Se BIOS ARR ods eee oho eRe IRE, cS Dee a 14

Prosternum with plentiful pale yellowish or whitish squamules and a narrow
deep glabrous canal; body much smaller; antenne more slender, with the
elongate-ovaliclub larger and more abrupt... 2 see oo ie eet 15

14—Form stout, rhombic-suboval, smooth; beak slender, evenly arcuate, three-
fourths as long as the elytra, rather closely punctured, coarsely and rugosely
so basally; antenne rather long but thick, with relatively slender club, the
third joint less than one-half longer than wide; prothorax somewhat less
than one-half wider than long, the strongly and evenly arcuate sides becoming
gradually almost parallel basally, the constriction with rather strong punc-
tures; basal lobe broadly truncate, with distinct lateral impressions at the
thoracic base, and a few punctures along the margin; scutellum moderate,
transverse, wider at apex than at base; elytra barely longer than wide,
three-fourths longer than the prothorax, parabolic, with prominent humeri
and feebly undulated lateral part of the disk; grooves deep and strong
throughout, evidently punctate laterally, 2-4 slightly dilated at base; under
surface remotely punctate, the metasternum with small oval and broadly
impressed central fossa; first ventral longer than the next three combined,
broadly, feebly impressed and finely, remotely punctulate, the first suture

BRAZILIAN BARIN-E 1ly7

very fine but evident, the others very coarse; femoral punctures strong but
sparse, the spicules minute. Length 7.0 mm.; width 4.8 mm. A single
specimen, probably from Brazil, received from Desbrochers des Loges.
tetricus n. sp.
Form slightly narrower and more sharply rhombic; beak slender, moderately
arcuate, three-fourths as long as the elytra, finely, loosely punctate, more
strongly toward base, the upper surface just visibly swollen basally; antennz
medial, piceous, rather short, with small and slender club, the second funicular
as long as the next two combined, the third but little longer than wide;
prothorax two-fifths wider than long, the sides subevenly and _ strongly
arcuate, becoming subparallel toward base, the large tubulation with a few
minute punctures; basal lobe smooth, very obtuse, the lateral basal im-
pressions somewhat deep and conspicuous; transverse scutellum flat, a little
wider at apex than at base; elytra as wide as long, nearly a third wider
than the prothorax, more narrowly parabolic than in the preceding, the
lateral surface but very feebly undulated; grooves deep throughout, 2-4
gradually coarser and deeper basally; under surface very sparsely punctulate,
the lower part of the thoracic inferior flanks opaque and impunctate; meta-
sternum with a deep, narrow and elongate central fossa; femoral punctures
strong but sparse, the spicules minute; first abdominal suture obsolete
medially. Length 6.0 mm.; width 3.9 mm. Brazil (Chapada). January.
A single specimen—probably female....................... adjutor n. sp.
Abdomen strongly and closely punctured basally; size very small. Obtusely
subrhombic; beak slender, evenly cylindric, feebly arcuate, three-fourths as
long as the elytra, finely, rather sparsely punctulate, more strongly, irregu-
larly so basally; antenna just visibly behind the middle, the club abrupt,
as long as the five preceding joints; third funicular joint one-half longer
than wide, the second shorter and much thinner than the first; prothorax
one-half wider than long, the strongly arcuate sides becoming parallel basally,
the subimpunctate tubulation larger than usual, almost half as wide as the
base; basal lobe broadly, obtusely rounded, with some rather strong punc-
tures; scutellum transversely subquadrate, flat, with some shallow punctures;
elytra longer than wide, with converging arcuate sides and moderately
- obtuse apex, only a fifth wider than the prothorax, the humeri not very
prominent laterally but longitudinally callous above; grooves moderate,
deep throughout, not dilated at base; under surface with unusually strong
punctures, rather close and coarse on the metasternum, but smaller and
sparse on the met-episterna; first abdominal suture very distinct; femora
with moderately coarse, loose sculpture, the spicules slender. Length 3.8-3.9
‘mm.; width 2.3 mm. Brazil (Chapada—forest). November. Two speci-
LIL CIS epee eae NED Terao Ps Pd cays abe term SecA cic tape dane de fate See Sees pullatus n. sp.
Abdomen finely, remotely punctate, the first suture less distinct............. 16
16—Body not very stout, subrhombic; beak slender, cylindric, as long as the
elytra, feebly arcuate, minutely, sparsely punctate, a little more strongly
toward base; antennz slightly behind the middle, slender, piceous, the first
funicular almost as long as the next two combined, the club small, abrupt,
rather longer than the three preceding joints; prothorax two-fifths wider
than long, the strongly arcuate sides gradually subparallel basally, the large
and sparsely punctulate tubulation three-sevenths as wide as the base, the
basal lobe slightly punctured, evenly rounded; scutellum transversely sub-
quadrate, broadly and feebly concave; elytra slightly elongate, almost a
third wider than the prothorax and two-thirds longer, the oblique sides
feebly arcuate; apex strongly rounding; humeri prominent; grooves deep
and abrupt throughout, subimpunctate, not dilated at base; punctures
beneath distinct, sparsest on the abdomen and sternal side-pieces; femoral

15

118 MEMOIRS ON THE COLEOPTERA

punctures coarse but separated, the spicules distinct, two in number and
subequal on the anterior. Length 5.2-5.3 mm.; width 3.1-3.3 mm. Brazil
(Chapada—forest) November. Three specimens......... decretus n. sp.
Body fully as elongate, rhombic-oval, with shorter prothorax and longer elytra;
beak rather slender, feebly arcuate, not quite as long as the elytra, finely,
sparsely punctate, coarsely and unevenly on the compressed sides basally;
antenne brownish-rufous, distinctly behind the middle, slender, the first
two funicular joints very elongate and subequal, the second rather longer
than the next two; club moderate, abrupt and oval; prothorax fully one-
half wider than long, the strongly arcuate sides gradually parallel basally,
the plentifully punctate tubulation three-sevenths as wide as the base;
basal lobe punctulate, short, gradual, sinuato-truncate at apex; scutellum
flat, only one-half wider than long, subquadrate; elytra fully a fifth longer
than wide, almost twice as long as the prothorax and much wider, the oblique
sides arcuate, the apex somewhat broadly rounded; grooves deep, not
dilated at base, a little less deep and more punctate laterally; sterna medially
with plentiful golden squamules; abdomen impressed medially at base in
the male; femora very coarsely, closely punctate. Length 5.0-5.2 mm.;
width 3.2 mm. Brazil (Rio de Janeiro). December.....anthracinus n. sp.
Body smaller and not quite so elongate, rhomboid-oval; beak slender, very feebly
arcuate, rather longer than the elytra in both sexes, finely, sparsely punctate,
more strongly but sparsely on the uncompressed sides basally; antenne
slightly behind the middle, slender, obscure red-brown, the basal funicular
not as long as the next two, the third a little less than twice as long as wide,
the seventh larger, pubescent and almost as wide as the club, which is nearly
as long as the preceding four joints; prothorax one-half wider than long,
the strongly arcuate sides becoming subparallel at base; tubulation large,
minutely, remotely punctulate, occupying apical fifth and nearly one-half as
wide as the base, the basal lobe slightly punctate and obtusely rounded;
scutellum short, transverse, smooth and broadly concave; elytra slightly
elongate, three-fourths longer than the prothorax, parabolic, with rather
strongly arcuate sides and narrowly rounded apex; humeri prominent both
laterally and dorsally; grooves very moderate but deep throughout, not at
all dilated basally; punctures of the entire under surface moderate and
sparse; femora with somewhat coarse, sparse punctures. Length 4.7-4.9
mm.; width 3.0 mm. Brazil (Chapada—forest). March and November.
PiveXsSpecimens: i hs )s10 28) 0 lnee ween eines Aen ae PRR cestan des collucens n. sp.
17—Form more sharply rhombic, narrower, the thoracic tubulation relatively
larger, almost half as wide as the base. Polished and smooth; beak slender,
feebly arcuate, four-fifths as long as the elytra, minutely, sparsely punctate,
coarsely and unevenly so on the subcompressed sides basally; antenne long,
slender, medial, the first two funicular joints much elongated and equal, the
third about twice as long as wide; club fully as long as the three preceding
joints, rather abrupt; prothorax fully one-half wider than long, the strongly
arcuate sides becoming parallel basally, the tubulation distinctly punctate,
about a fifth the total length; basal lobe obtusely rounded but not very
gradually formed, punctate; scutellum transverse, flat and impunctate,
wider at apex than at base; elytra slightly elongate, twice as long as the
prothorax and nearly a third wider, the oblique sides only very feebly arcuate;
apex somewhat obtusely rounded, the humeri laterally, but not dorsally,
prominent; striz very fine and feeble, the punctures distinct; under surface
very finely, remotely punctate, the prosternal flanks more strongly and
closely; strong femoral punctures well separated. Length 6.0 mm.; width
3.7mm. A single specimen, probably from Brazil, sent by Desbrochers des
BeOS eS RPh See ee Nae eo SED Pee Pr reer A ar a incultus n. sp.

BRAZILIAN BARIN 119

Form more broadly rhomboid-oval, the thoracic tubulation relatively much
smaller, about a third as wide as the base; prothorax relatively much larger.
18

18—Beak (9) nearly as long as the elytra, moderately slender, feebly arcuate
and rather strongly sculptured, or (co) very little shorter and more arcuate,
somewhat thicker, closely and still more strongly sculptured and somewhat
more compressed at base; antenne medial, rufo-piceous, not very elongate,
the first funicular joint but little longer than the second, though thicker as
usual, the third only slightly elongate and much shorter; club about as long
as the four preceding joints; prothorax only a third wider than long, the
strongly arcuate sides gradually becoming subparallel through about basal
half, the finely punctulate tubulation a fifth the total length; basal lobe
nearly smooth, obtusely rounded, feebly impresso-sinuate at the middle of
the apex; lateral impressions very feeble; scutellum transverse, truncate,
minutely, sparsely punctulate; elytra not longer than wide (9), barely so
(o), three-fifths to two-thirds longer than the prothorax respectively, evenly
parabolic in outline, rather obtusely, evenly rounded at apex; humeri
rounded, only moderately prominent, not callous above; striz very fine and
obsolete, not at all defined, the punctures very small and widely separated,
rather evident; striae 1, 9 and 10 deep, 2 and 3 slightly dilated and deep
basally; under surface sparsely punctulate, the femora with strong and well
separated punctures; male with two short curved ante-coxal processes and
a small deep well in the posterior part of the deep canal. Length 7.0-7.5
mm.; width 4.4-4.7 mm. Brazil (Rio de Janeiro). November. Four
SPECIMENS pear we RNIN owe ea 2 oda 3 ci 18 odes id, sua cneh « cpohers gravidulus n. sp.
Beak (<) not quite so long, a little thicker and more arcuate than in the male
of the preceding species, similarly strongly sculptured; antenne nearly black,
not very elongate, the second funicular joint not quite so long as the first
and much thinner, the third but little longer than wide, the club narrow, as
long as the four preceding joints; prothorax not two-fifths wider than long,
the strongly arcuate sides gradually becoming parallel in nearly basal half,
the constriction moderately punctate; basal lobe smooth, very gradual,
with rather deep lateral impressions, the apex feebly impresso-sinuate at
the middle; scutellum transverse, feebly sinuato-truncate, smooth, somewhat
convex, a little wider at apex than at base; elytra scarcely as long as wide,
much wider than the prothorax and two-thirds longer, parabolic, with
somewhat narrowly rounded apex and feebly undulate flanks; striae very
fine, feebly punctulate, more groove-like and punctured laterally, the sutural
deep as usual, 2 and 3 feebly deepened and subdilated at base; inferior
thoracic flanks punctured only toward the coxe; metasternum coarsely
striate centrally; male with the first abdominal segment feebly impressed
and with close punctures bearing small squamules, the prosternum nearly
as in gravidulus, but with the rather short and slender spines straighter.
Length 7.2 mm.; width 4.8 mm. Brazil (Chapada). December. One
SJOLAS IN Mody Lo Sow cute ool ona Cee rec eaten tan Cpr nor ey tc grandicollis n. sp.
Beak (<) nearly as in gravidulus in form and sculpture, but scarcely so long and
just visibly more arcuate; antenne piceo-rufous, somewhat more slender, the
funicular joints proportioned almost similarly, but with the seventh smaller,
the elongate-oval and pointed club more abrupt, rather longer than the four
preceding joints; prothorax large, more transverse, more nearly as wide as
the elytra, fully one-half wider than long, the strongly arcuate sides in
similar way gradually becoming parallel in nearly basal half; tubulation and
basal lobe nearly as in grandicollis; scutellum similar but flatter and narrowed
basally—not subparallel as in graviduius; elytra somewhat narrower than in
either of the preceding and slightly longer than wide, more triangular, with

120 MEMOIRS ON THE COLEOPTERA

moderately arcuate sides and rather strongly rounded apex, at the humeri
but little more than a sixth wider than the prothorax, fully four-fifths longer;
strie fine and almost completely obsolete, feebly punctulate, gradually
stronger and more punctate, though not definitely groove-like, laterally, 2
and 3 slightly dilated and deep at base; punctures on the thoracic flanks
below much finer and sparser; male with a more deeply impressed and more
squamulose basal abdominal impression and very short, slender and erect
prosternal processes; hind femoral punctures sparse. Length 6.5 mm.;
width 4.2 mm. Brazil (Rio de Janeiro). October. One specimen.
vitrarius n. sp.
19—Elytral striz fine and feeble, sometimes virtually obsolete.............. 20
Elytral strize deep, sharply abrupt and groove-like...............+-++++-++: 21
20—Antennal funicle with the first two joints elongate, as in the three preceding
species; elytral strie rather impressed. Form not very stout, rhomboid-
oval; beak moderately thick and arcuate, rather closely, strongly sculptured,
a little longer than the head and prothorax; antennae medial, not very
slender, blackish, the first funicular joint longer and thicker than the second,
the third slightly longer than wide, the club rather longer than the preceding
four joints; prothorax two-fifths wider than long, slightly more convex
basally, the arcuate sides subparallel in less than basal half, the tubulation
almost three-sevenths as wide as the base; basal lobe smooth, broadly
rounded, impressed medially at apex, the lateral impressions evident; scu-
tellum transversely subquadrate; elytra somewhat longer than wide, evenly
parabolic, with moderately prominent humeri, two-thirds longer than the
prothorax; striz fine but broadly and feebly impressed, finely, distinctly
punctate; femora strongly, loosely punctate; prosternum glabrous, with
large deep canal; metasternum with a striiform sulcus; first abdominal
segment broadly, feebly impressed and with rather close setulose punctures
at the middle. Length 5.5 mm.; width 3.4 mm. Brazil (Rio de Janeiro).
November. One specimen, the abdominal characters of which would seem to
indicate the male, but without trace of the prosternal spines of the preceding
Ssroup, or o1the following species.c 2 nme eta uttere rlat tater ares inops n. sp.
Antennal funicle very unlike that in any of the preceding species, the first joint
being the only one elongated, the second obconic and but little longer than
wide. Very broadly rhomboidal and smooth; beak thick, strongly arcuate,
as long as the head and prothorax, finely, sparsely punctate throughout, even
at the scarcely compressed sides basally; antenne rather thick and short,
black, the seventh funicular joint wider, the club longer than the preceding
four joints; prothorax three-fifths wider than long, the strongly and evenly
arcuate sides gradually parallel basally; tubulation with only very minute
and remote punctulation, rather over a third as wide as the base, the basal
lobe smooth, broadly impresso-sinuate at apex, the lateral impressions dis-
tinct, scutellum transversely quadrate; elytra not quite as long as wide,
almost a third wider than the prothorax and four-fifths longer, parabolic,
with feebly biundulated flanks and very prominent humeri; strize very fine
and feeble, subobsolete, the punctures not distinct, 2-4 briefly dilated at
base, the sutural moderate, deeper and punctate basally; legs rather short
and stout, the femora sparsely and not very strongly punctate; male with
the abdomen flat, minutely and remotely punctulate medio-basally, the
ante-coxal spines of the prosternum moderate, feebly arcuate and vertical.
Length 6.65-6.8 mm.; width 5.0-5.2 mm. Brazil (Espirito Santo and Rio
deaneiro) a" Dwomnalerspecimensy i. eect like decens n. sp.
21—Pronotum smooth or nearly so at. base, as usual....................... 22
Pronotum punctured and squamulose along the base, especially on the basal
lobe, the scutellum punctulate but glabrous; first two joints of the antennal
ftuniclesmuchselongatedvandyequaliat seis cis ae is ieee eee eer 32

BRAZILIAN BARINZ I21

22—Pronotum, as viewed in profile, moderately convex, more so basally; size

TALLUCH AATCC TORN ae eee eee eee ae ek A AO LEMA W eh PS y 23
Pronotum evenly and rather strongly convex behind the tubulation; elytra more
oruless Diuudulatedtonmeheniomks a.) Nas wae oe ves hele knee OES s 24
Pronotum evenly and feebly convex; antenne more elongate, rufous......... 3I

23—Form very stout, rhomboid-oval; beak rather thick, moderately arcuate,
subcylindric, strongly, somewhat closely punctured throughout and equal in
length to-the prothorax; antenne moderately short, blackish, with the basal
joint of the funicle much elongated, a little longer than the next two combined,
the second obconic, not quite twice as long as wide, the club rather narrow,
about twice as long as wide, as long as the preceding four joints; prothorax
fully two-thirds wider than long, the strongly arcuate sides becoming not
quite parallel basally; tubulation a fifth the total length, scarcely three-
sevenths as wide as the base, minutely, sparsely punctured; basal lobe
punctured and impresso-sinuate at apex, the lateral impressions moderate;
scutellum transverse, the hind margin feebly and evenly bisinuate; elytra
somewhat longer than wide, two-thirds longer than the prothorax and much
wider, the oblique sides feebly arcuate, the flanks biundulated; apex rather
strongly rounded, the prominent humeri broadly rounded; grooves somewhat
narrow but deep, smooth, 2 and 3 feebly dilated basally; abdomen feebly
impressed medio-basally, finely, sparsely punctate, more strongly toward the
sides of the impression; femora coarsely but not closely punctate, the
spicules distinct; prosternum glabrous, with very deep canal, which is
polished at the bottom. Length 6.4 mm.; width 4.6 mm. Brazil (Rio de
Janeiro). November. One example—probably male, but without proster-
MAUS DIMES PRE eT eee iene Oe a ees 8 SE we ea retusus n. sp.
Form, general characters and striation almost as in the preceding, but with the
body slightly more elongate; beak and antenne nearly similar, the latter
slightly longer, with the first funicular joint as long as the next two, the
second fully twice as long as wide, the club not quite so slender, more oval
and not quite twice as long as wide; prothorax less transverse, only three-
fifths wider than long, otherwise nearly similar throughout; scutellum
similar but with the hind margin broadly cuspido-angulate; elytra nearly
as in retusus, but very slightly longer and similarly with grooves two and
three not quite attaining the basal margin; under surface not differing
materially, the tibia subangularly prominent externally toward base. Length
7.2 mm.; width 4.65 mm. Brazil (Rio de Janeiro). November. One

SPECIMEN A ae eee ee ao dre eal Be PERS conjunctus n. sp.
24—Prothorax most rounded near the middle, becoming truly parallel for some
distanceybetonenthesbases. ys enon wea nimi ieee siete cro caine ee seers 25
Prothorax subevenly and strongly arcuate at the sides, not becoming quite
parallel toward base, the sides straighter basally in campanulatus........ 26

25—Body stout, rhombic-oval, the lateral undulations of the elytra strong, the
median part rather prominently rounded; beak thick, moderately arcuate, as
long as the head and prothorax, somewhat finely but strongly, sparsely
punctate, irregularly at the sides basally; antenne medial, black, the first
funicular joint longer than the next two, the second obconic, one-half longer
than wide, the club narrow, cylindric, truncate at base, pointed in apical
third; prothorax three-fifths wider than long, the sides very oblique beyond
the middle; tubulation almost impunctate, more than a third as wide as the
base, the basal lobe nearly smooth, obtusely rounded, the lateral impressions
moderate; short transverse scutellum slightly convex, broadly and feebly
sinuate at apex; elytra barely longer than wide, much wider than the pro-
thorax and three-fourths longer; apex rather strongly rounded, humeri
evenly rounded; grooves abrupt, nearly smooth, 2 to 4 slightly dilated at

E22 MEMOIRS ON THE COLEOPTERA

base but not quite attaining the basal edge; inferior thoracic flanks with a
very few moderate punctures, the hind body rather strongly, more closely
punctate; abdomen medio-basally scarcely more than flat, moderately and
remotely punctate; tibiz externally only rounded, not prominent; male
without prosternal spines. Length 5.7-6.2 mm.; width 4.2-4.4 mm. Brazil
(Santarem). Two specimens, apparently male............... hebes n. sp.
Body distinctly smaller, not quite so stout; beak not (co) or distinctly (2)
shorter than the prothorax, a little shorter in the female than in the male;
moderately arcuate, strongly sculptured; antenne medial, similar in the
sexes, blackish, the first funicular joint about twice as long as wide, subequal
to the next two, the second thinner, obconic, not one-half longer than wide,
the club widest beyond the middle, about as long as the four preceding joints;
prothorax three-fifths wider than long, the sides becoming very oblique
toward the tubulation, which is a third as wide as the base (co), much wider
and almost half as wide as the base (2); basal lobe very obtusely rounded,
the apex feebly and closely punctate at the edge; scutellum much less
transverse than in hebes, only a little wider than long, narrowed slightly
from apex to base, flat, truncate at apex; elytra triangular, scarcely as long
as wide (2), or slightly longer (co), much wider than the prothorax and
four-fifths (o”) or three-fifths ( ) longer, the oblique sides feebly arcuate, a
little more so between the feeble undulations, the apex very narrowly rounded;
grooves deep, coarse and feebly punctulate, the inner not much dilated
basally, the second crossing the basal edge; prosternum (co) having two
rather short and erect, slender spines, the abdomen medio-basally feebly
impressed and loosely punctate, or (9) without spines and with the basal
abdominal segment convex, strongly, very densely punctured throughout
and with a deep impressed line along the middle. Length 5.4-5.65 mm.;
width 3.65-3.8 mm. Brazil (Chapada). March and November. Three
SPECIMENS, Oy <i LE a ener ee convexus n. sp.
Body nearly as in convexus but rather larger; beak (<) a little shorter, not quite
as long as the prothorax, similar in form and sculpture; antenne blackish,
scarcely so long as in the preceding, the first funicular joint three-fifths
longer than wide, not quite as long as the next two, the second as in convexus,
the club shorter, more evenly oval and only as long as the preceding three
joints; prothorax similar in general form, though a trifle more transverse,
the sides beyond the middle still more rapidly and broadly subtransverse to
the tubulation, which is somewhat longer, a fifth the total length; basal
lobe obtusely rounded, the declivo-convex apex strongly punctate, the
lateral impressions even more distinct; scutellum similar in form and size
but feebly concave posteriad; elytra nearly similar, very slightly longer,
with more pronounced subapical tumidity and deeper biundulation of the
flanks; under surface with almost similar sculpture and sexual characters,
the legs somewhat longer, with rather more clavate femora. Length 5.8
mm.; width 4.0 mm. Brazil (Chapada—campo). December. One male.
atromicans n. sp.

Body subsimilar to that of convexus in general form and structure, but smaller;
beak (<7) as long as the head and prothorax, not quite so stout as in convexus
and rather less closely, though strongly, sculptured; antenne much shorter,
black, the first funicular joint one-half longer than wide, not quite as long as
the next two; club short, broadly oval, as long as the four preceding joints,
the entire funicle barely longer than the scape (9), distinctly longer ();
prothorax as in convexus in both sexes, except that the basal lobe is more
punctured and is feebly squamulose; head and tubulation similarly much
broader in the female than in the male; scutellum as in convexus; elytra
throughout as in that species, the grooves rather less coarse; male with

BRAZILIAN BARIN 123

similar sexual characters, except that the prosternal spines are very small,
straighter and more slender, the basal abdominal segment of the female also
similar, excepting the different character of the dense sculpture, which
is here more coarsely and discretely punctate and not internally asperulate,
as it is in convexus, and that the impunctate area along the base of the seg-
ment is much greater in extent. Length 5.0-5.3 mm.; width 3.65-3.75 mm.
Brazil (Chapada—campo). November. Two specimens.
consentaneus n. sp.
26—Second elytral stria not attaining the base; beak very thick, short. Body
rhombic-oval, with rather thick legs; beak (9) stout, feebly arcuate, cylin-
dric, not very coarsely and somewhat irregularly punctate, not as long as the
prothorax; antenne black, the first funicular joint nearly as long as the
next three combined; club oval, pointed, about as long as the four preceding
joints; prothorax three-fifths wider than long, campanulate, the tubulation
a fifth the total length and three-sevenths as wide as the base, the basal
lobe short, broadly and obtusely rounded, feebly punctulate and declivous
at tip, the lateral impressions strong; scutellum very transverse, truncate
and unusually convex; elytra scarcely as long as wide, much wider than the
prothorax and three-fourths longer, parabolic, the sides deeply biundulate,
with the median convexity pronounced; grooves moderate but sharply
marked, smooth, none attaining the basal margin or materially dilated at
base; prosternal channel glabrous, abrupt and deep, as usual in this section
of the genus; basal segment of the abdomen (@) somewhat convex and
distally canaliculate medially, sparsely punctate, more densely so and more
squamulose apically. Length 6.2 mm.; width 4.4 mm. Brazil (Chapada).
lenteia’, . OMe GoechmGoe ose eeegeoes sooo ceo conope brevirostris n. sp.
Second elytral stria attaining or crossing the basal margin; beak less thick.. .27
27—Biundulation of the elytral flanks strongly marked, the median arcuation
notably prominent. Body subrhombic-oval; beak only moderately thick,
subcylindric, shining, moderately arcuate, somewhat longer than the head
and prothorax, sparsely and clearly punctate; antenne piceous, the first
funicular joint shorter than in brevirostris, about as long as the next two,
the club thick and oval, pointed apically; prothorax campanulate, one-half
wider than long, the sides from base to middle converging and nearly straight,
broadly rounding thence to the tubulation; basal lobe obtusely rounded,
with convex punctate edge and distinct lateral impressions, the apex feebly
sinuate medially; scutellum subquadrate, one-half wider than long, finely
punctulate and rather convex; elytra barely longer than wide, almost
exactly as in brevirostris in every respect; first abdominal segment slightly
impressed, sparsely, moderately and somewhat unevenly punctate. Length
5.8 mm.; width 3.8 mm. Brazil (Chapada). One specimen, which, from
the abdominal characters, would seem to be the male, but the beak is a little

longer than usual and there are no prosternal spines... .campanulatus n. sp.
Biundulation feebler, the median convexity broad and very moderate, not prom-
TTALETTIES 3 5 oS eels crepe y eect MRS OR Te Contre Se Ln Pe ec 28
28—Body nearly as in campanulatus in its moderate size, rather abbreviated
form and shorter and more transverse prothorax..............+00.005- 29
Body more oval, with very much larger and less transverse prothorax........ 30

29—Body rhomboidal; beak (<) moderately thick, shining, cylindric, distinctly
arcuate and not as long as the prothorax, the punctures rather coarse and
close at the sides; first funicular joint barely longer than the next two, the
club rather short and broad, not as long as the four preceding joints; pro-
thorax campanulate, three-fifths wider than long, the sides strongly, very
evenly arcuate from base to tubulation, becoming subparallel basally; basal
lobe very broadly rounded and with distinct lateral impressions, the apex

124 MEMOIRS ON THE COLEOPTERA

punctulate and with a few slender squamules; scutellum moderate, trans-
verse, sinuato-truncate at apex; elytra barely longer than wide and two-
thirds longer than the prothorax, subparabolic, but with relatively narrowly
rounded apex; grooves abrupt but not very coarse, the fine and remote
punctures along the bottom unusually distinct; abdomen (co) broadly but
distinctly impressed medio-basally, the impression sparsely and finely punc-
tate; prosternum with two slender, erect and somewhat arcuate processes;
hind femora closely, very coarsely and irregularly punctate. Length 5.5-
5.65 mm.; width 3.75-3.9 mm. Brazil (Chapada). March and November.
Two males, found on flowers near the forest............... inscitus n. sp.
Body similarly rhomboidal but much smaller in size; beak strongly and unevenly
punctate, moderately arcuate, as long as the head and prothorax (<),
slightly shorter, with smoother distal part (2); antennz blackish, the first
funicular joint about as long as the next two, the club moderate, a little
narrower in the male; prothorax campanulate, three-fifths wider than long,
the subevenly and strongly arcuate sides gradually subparallel basally;
tubulation two-fifths (co) or three-sevenths (@) as wide as the base, the
basal lobe obtusely rounded, with punctulate and feebly, medially subsinuate
margin, the lateral impressions very moderate; scutellum very moderate,
slightly transverse, narrowed from the sinuate apex to the base; elytra as
long as wide, two-thirds longer than the prothorax, triangular, with the
oblique sides bisinuate, as usual in this section; grooves as in the preceding,
very deep; prosternum with very small and erect, sharp ante-coxal processes,
the abdomen distinctly impressed and sparsely punctate medio-basally (<7),
or without spiniform processes, the first abdominal segment convex and very
densely punctate throughout and with a deep, sharply impressed median
line (2). Length 4.5-4.65 mm.; width 3.2 mm. Brazil (Chapada).
MarchtandtAiprila) dihreeispecimens. seer ee te insulsus n. sp.
Body nearly as in insulsus but still smaller, rhomboidal; beak (@) short,
moderately arcuate, thick, strongly, closely sculptured and barely as long
as the prothorax; antennz black, well developed, the first funicular joint
notably thick, a little longer than the next two, the second but little longer
than wide, the club short, rapidly narrowing at apex and as long as the four
preceding joints; prothorax three-fifths wider than long, the sides converging
and broadly arcuate, more rounded anteriorly to the tubulation, which is
distinctly less than half as wide as the base; basal lobe punctate and feebly
medially sinuate at apex, the lateral impressions subobsolete; scutellum short,
small, broadly sinuate at apex; elytra triangular, with the oblique sides
distinctly though broadly arcuate medially, and the apex narrowly rounded,
evidently longer than wide, much wider than the prothorax and slightly
less than twice as long, the grooves strong, deep and smooth; under surface
sparsely punctate; prosternum glabrous, with wide and deep, abrupt chan-
nel, the first abdominal segment (@) convex, with strong but sparse
punctures and a very deeply impressed longitudinal line. Length 3.75 mm.;
width 2.4 mm. Brazil (Chapada). March. One specimen. ..debilis n. sp.
30—Body more oval, larger in size; beak rather thick, moderately arcuate,
subcylindric, strongly and closely sculptured; first funicular joint as long as
the next two, the second twice as long as wide, the outer joints gradually
broader; prothorax fully one-half wider than long, campanulate, the strongly
arcuate sides parallel basally, the rounded basal lobe punctured and slightly
sinuate at apex, the lateral impressions conspicuous; scutellum quadrate,
smooth, only very little wider than long; elytra as long as wide, three-fourths
longer than the prothorax and a fifth wider, oval in form, the median con-
vexity of the flanks wide and somewhat feeble; grooves deep and abrupt as
usual, moderately coarse; femora strongly, loosely punctate, the spicule of

BRAZILIAN BARINZ 125

the anterior rather longer and thicker than usual; first abdominal segment
sparsely punctate, the first suture very sharply marked. Length 6.5 mm.;
width 4.3 mm. Brazil (Rio de Janeiro). October. One specimen—appa-
Fently females acne scan a ee RTC ie ieee es Deal eiaer arse severus n. sp.
31—Form rhombic-oval; beak rather thick and moderately arcuate, distinctly
longer than the head and prothorax, expecially in the male, coarsely, closely
sculptured, less so and more shining and apically a little more tapering in
the female; antennz inserted slightly behind the middle, rufous throughout,
the first funicular joint as long as the next two and thicker, the second
twice as long as wide, the club moderate, oval, concolorous; prothorax two-
fifths wider than long, the sides strongly converging, broadly and subevenly
arcuate from base to the moderate tubulation; basal lobe moderate, smooth,
with evident lateral impressions, the apex feebly sinuate medially; scutellum
moderate, subquadrate, minutely, sparsely punctulate and one-half wider
than long; elytra distinctly elongate, oval, three-fourths longer than the
prothorax and evidently wider, though not so greatly as usual, the humeri
unusually feeble in prominence; grooves deep and abrupt, rather strong,
the second attaining the basal edge, not dilated basally; prosternum glabrous,
with deep and abrupt, moderately wide sulcus, without trace of spiniform
processes in the male; abdomen convex, minutely, remotely punctate, with
feebly marked first suture, the middle of the first segment feebly impressed,
but otherwise unmodified in the male; femora coarsely, deeply and closely
punctate, the spicules small. Length 3.8-4.2 mm.; width 2.6-2.8 mm.
Brazil (Rio de Janeiro). October and November. Three specimens.
fatuus n. sp.
Form nearly similar but larger and evidently stouter; beak (co) larger and
longer than in the male of fatwus, rather more arcuate, strongly, closely
sculptured and about half as long as the body; antenne similar, except that
the club is somewhat narrower and more gradually pointed; prothorax
similar in form, one-half wider than long, the moderately tubulate apex
scarcely three-sevenths as wide as the base, the basal lobe, scutellum and
elytra almost similar, the second rather larger, and the latero-medial convexity
of the elytral flanks is rather more distinct—almost obsolete in fatwus; under
surface and legs nearly as in fatuus, but the sparse punctures of the shallow
basal abdominal impression in the male are notably stronger and less minute.
Length 4.8-5.2 mm.; width 3.25-3.4 mm. Brazil (Riode Janeiro). Novem-
bere MlwommalelSpeGMMeNss. | spss rece .yojin/ym ms sneee(s 4s elelnres elon ineptus n. sp.
32—Body rather elongate, rhombic-oval; beak moderately arcuate and nearly
cylindric, strongly and somewhat closely sculptured, as long as the head and
prothorax (¢@), a little longer and heavier (o"); antenne just visibly behind
the middle, rather slender, rufo-piceous, the second funicular joint much
elongated, longer than the first (2 ), or equal thereto (), the club moderate,
gradually pointed; prothorax only between a third and fourth wider than
long, the converging sides distinctly arcuate, straighter basally but not
parallel; tubulation large, half as wide as the base, the latter with close
confused punctures throughout the width, the punctures bearing whitish
scales; basal lobe obtusely rounded, the lateral impressions nearly obsolete;
scutellum quadrate, punctulate, well developed and only a little wider than
long; elytra distinctly longer than wide, two-thirds longer than the pro-
thorax and distinctly wider, the humeri moderately prominent; outline
triangular, with broadly arcuate sides and moderately narrow rounded apex;
subapical prominences distinct; grooves strong and deep, the second not
quite attaining the basal edge and not at all dilated basally; prosternum
with dense golden squamules, scarcely at all impressed along the middle, not
spinose in the male; abdomen convex, finely, sparsely punctate and feebly

126 MEMOIRS ON THE COLEOPTERA

squamulose, more distinctly and closely punctured and squamose in what
appears to be the male, where also the abdominal base is flattened medially.
Length 4.7-5.4 mm.; width 2.7-3.3 mm. Brazil (Chapada—forest). Octo-

ber and November. Three specimens..,...............-.... tristis n. sp.
33—Elytral striz fine but well defined, not at all impressed and finely but very
distinctly; remotely punctate sft 0 2s cos weld. doe suerte tere te eens oe 34

Elytral strie fine, feeble and not well defined, sometimes virtually obsolete and
occasionally feebly impressed, the punctulation not so definite as a rule..35
34—Form rhombic-suboval; beak slender and smooth, cylindric, moderately
arcuate and as long as the elytra, the punctures at the sides basally small
and sparse; antenne near two-fifths, slender, piceo-rufous, the first funicular
joint not as long as the next two, the second twice as long as wide, the club
longer than in the preceding sections, oval, black, longer than the five pre-
ceding joints; prothorax one-half wider than long, the strongly arcuate sides
subparallel basally, the tubulation minutely, remotely punctulate, nearly
three-sevenths as wide as the base, the basal lobe smooth, declivo-sinuate
medially at apex, the lateral impressions moderate; scutellum well developed,
transversely subquadrate, nearly flat; elytra parabolic, scarcely longer than
wide, three-fourths longer than the prothorax, with prominent and strongly
rounded humeri, the oblique sides very feebly and broadly sinuate anteriad
and posteriad; strie fine but well defined, 1, 2, 9 and 10 more groove-like,
not dilated at base, the second not attaining the basal edge; abdomen convex,
very minutely, remotely punctulate; femora coarsely, not very closely punc-
tate, with small spicules—two on the anterior as usual. Length 4.8 mm.;
width 3.1 mm. Brazil (Chapada—campo). December. One female speci-
MOTE. 7 ye NS ie ee aT ees ee net peat. SEs stibicus n. sp.
Form stouter, suboval; beak evenly arcuate, nearly as long as the elytra, slender,
smooth, the punctulation minute, stronger and irregularly, longitudinally
coalescent laterally toward base; antenne just behind the middle, black, the
first funicular a little longer than the second, which is as long as the next
two, the club narrower, more gradually pointed, a little longer than the
preceding four joints; prothorax three-fifths wider than long, the sides
more shouldered near the middle than in the preceding, thence very con-
verging and broadly arcuate to the tubulation, which is two-fifths as wide
as the base, subparallel and straighter in nearly basal half; basal lobe mar-
gined, very obtusely rounded; scutellum nearly flat, very short, strongly
transverse, subquadrate; elytra scarcely as long as wide, three-fourths
longer than the prothorax, the oblique sides feebly arcuate, subsinuate near
apical third, the apex narrowly rounded; humeri moderately prominent;
strie still finer and not so groove-like asin the preceding, the small punctures
evident, rather conspicuous on the flanks; strie 1, 9 and 10 deep and grooved;
femoral punctures not so coarse as in the preceding and well separated;
male with two moderate erect ante-coxal spines, the deep well in the canal
large and oval, the first abdominal segment flattened or feebly concave,
strongly and sparsely punctured medially, with a fine impressed median line.
Length 4.9 mm.; width 3.35 mm. Brazil (Chapada). March. One male
Examples ee. is oiler, A erecter cpanel uae ee cet beac Ee tenuistriatus n. sp.
35—Sides of the prothorax more rapidly rounding medially, thence very oblique
—sometimes almost transverse—to the tubulation, parallel in about basal
two-fifthse sh ose eh OAS ee oe cinch Re tet ae A I na Ae oe 36
Sides more gradually rounding and converging anteriorly...............--+. a7,
36—Inferior flanks of the prothorax with very coarse punctures, unevenly dis-
tributed; body stout and oblong-oval; beak slender, arcuate, smooth, with
moderately coarse, sparse punctures basally, nearly as long as the elytra;
antenne very different, black, just behind the middle, the first funicular

BRAZILIAN BARINA 127

joint long and cylindric, almost as long as the next three, the second barely
longer than wide, the outer joints transverse, the club rather well developed;
prothorax two-thirds wider than long, the large tubulation more than three-
sevenths as wide as the base, the basal lobe very convex as a part of the
discal gibbosity, punctate apically, the rounded apex faintly subsinuate
medially, the lateral impressions oblique, distinct; scutellum transverse,
subquadrate, well developed and flat; elytra scarcely as long as wide, as
usual much wider than the prothorax and three-fourths longer, the oblique
sides more arcuate medially, the apex moderately narrow and rounded;
humeri only moderately prominent; striz feeble and slightly impressed, the
punctures remote but evident, the second with a small deep basal dilatation;
abdomen strongly, uniformly convex, minutely and sparsely punctate.
Length 4.0 mm.; width 2.7 mm. Brazil (Santarem). One female.
gibbosus n. sp.

Inferior flanks with much smaller and sparse punctures; body subrhomboid-oval;

oa

beak slender, moderately arcuate, about as long as the elytra, finely, sparsely
punctulate, a little more strongly so in the male, especially toward base, the
male beak also a little thicker; antenne black, submedial, the first funicular
joint scarcely longer than the next two, the second obconic and nearly one-
half longer than wide, the club moderately narrow, gradually pointed, longer
than the preceding four joints; prothorax three-fifths wider than long, the
tubulation two-fifths (c”) or three-sevenths (9) as wide as the base, the
basal lobe margined and with more abundant transverse punctures; scutel-
lum nearly similar; elytra slightly () or not at all () longer than wide,
three-fifths to two-thirds longer than the prothorax, the outline nearly as in
gibbosus but with more prominent humeri and more feeble medial arcuation
of the oblique sides; striz very fine and feeble, not (9) or broadly (oo)
impressed toward the sides, the second feebly dilated at base; male with two
slender diverging prosternal spines, visible from above, the first ventral
feebly impressed and sparsely punctate medially; female with the abdomen
uniformly convex and very finely, sparsely punctate, the first segment very
feebly and broadly impressed along the middle. Length 4.8-5.1 mm.;
width 3.2-3.3 mm. Brazil (Santarem). Six specimens... ..honestus n. sp.
Beak rather thick, strongly, longitudinally sculptured, at least in the male,
where the prosternal spines are very small and erect, the first abdominal
segment flattened and somewhat finely, sparsely punctate.............. 38

Beak much more slender, smoother and more cylindric in both sexes; prosternal

38—

spines of the male similarly very small and erect..............+-++++-- 39
Prothorax moderate in size, as usual in this section; form rhombic-oval;
beak (<) rather thick, strongly arcuate, almost as long as the elytra, strongly,
longitudinally sculptured; antenne black, nearly as in the next species;
prothorax a little more than one-half wider than long, the sides slightly
converging and moderately arcuate, gradually broadly rounding and much
more converging beyond about the middle, the tubulation pronounced,
nearly three-sevenths as wide as the base, the basal lobe smooth, with its
rounded apex feebly subsinuate medially; lateral impressions strong; scu-
tellum well developed, strongly transverse, rather less broad at base than at
apex; elytra not as long as wide, parabolic, much wider than the prothorax
and three-fourths longer, with distinctly prominent humeri; median part of
the sides a little more arcuate; apex not very narrowly rounded; strie
very fine and subobsolete, feebly impressed, indistinctly punctate, coarse
and grooved apically, second and third slightly dilated and deep basally;
under surface sparsely and coarsely punctate, the femora strongly but loosely
so. Length 4.2 mm.; width 3.0 mm. Brazil (Espirito Santo). H. Rolle.
ASinglerimaler elem rae eee ee oe Ss ae eee alo ae nome jotedie ie gibbicollis n. sp.

128 MEMOIRS ON THE COLEOPTERA

Prothorax relatively much larger; body larger in size; beak (<) rather thick,
strongly, longitudinally sculptured, strongly arcuate and as long as the elytra;
antenne submedial, black, the first funicular joint unusually elongate, as
long as the next three, the second slightly elongate, the club rather narrow
and gradually pointed, fully as long as the preceding four joints; prothorax
one-half wider than long, the sides strongly, very evenly rounded from base
to constriction, not quite parallel at base; tubulation rather more than two-
fifths as wide as the base, the basal lobe and scutellum almost as in the
preceding; elytra as long as wide, much wider than the prothorax and three-
fifths longer, with prominent and rather strongly rounded humeri; oblique
sides just visibly more arcuate medially; apex rather narrowly rounded;
strie very fine and subobsolete, not evidently punctate, except finely so
laterally, a few striz deep near the apex, 1, 9 and 10 as usual; second slightly
dilated and deep at base, the striae nowhere impressed; under surface sparsely
punctate; femora rather strongly but loosely so, the spicules moderate.
Length 5.0 mm.; width 3.45 mm. Brazil (Tejuca, near Rio de Janeiro).
Ee Clark, )Onetmale examples Af. annette ae ee ee aptus n. sp.

39—Body subrhombic-oval, stouter; beak slender, cylindric, smooth and polished,
finely, sparsely punctate throughout, moderately arcuate and nearly as long
as the elytra; antenne rather stout, submedial, black, the first funicular
joint longer than the next two, the second nearly one-half longer than wide,
the club as long as the preceding four joints; prothorax three-fifths wider
than long, the rounded sides converging anteriad, becoming not quite parallel
near the base; apex fully three-sevenths as wide as the base, the basal lobe
minutely, sparsely punctulate, rounded, very slightly impressed at apex, the
lateral oblique impressions conspicuous; scutellum short, transverse, unlike
that of any of the preceding species in being deeply concave; elytra as long
as wide, much wider than the prothorax and two-thirds longer, evenly
parabolic, the humeri prominent but not abruptly so; striz very fine, feeble
and obsoletely punctulate, more evident and punctate on the flanks, some
of them coarse and grooved at apex, the second not dilated though distinct
at base; femora coarsely, sparsely punctate; abdomen minutely, remotely
so, the first segment with a fine median stria. Length 4.7 mm.; width
3.2mm. Brazil (Chapada). December. A single female... .satyrus n. sp.

Body narrower and more sharply rhombiform; beak in both sexes slender,
cylindric, moderately arcuate, as long as the elytra, smooth, shining and
minutely, sparsely punctulate, the more distinct and longitudinally sub-
anastomosing lateral punctures basally more evident in the male; antennez
very slightly behind the middle, black, the first funicular joint longer than
the next two, the second about twice as long as wide, the club as long as
the preceding four joints, conically and finely pointed in about distal half;
prothorax two-thirds (<o”) to three-fifths ( 9 ) wider than long, in form nearly
as in satyrus, the tubulation evidently wider in the female but not half as
wide as the base, the basal lobe feebly punctulate, margined and almost
evenly rounded, the lateral oblique impressions distinct; scutellum trans-
verse, concave medially but not so conspicuously as in satyrus; elytra as
long as wide (2), somewhat longer (co), parabolic, with strongly rounded
apex, the humeri not so prominent as in the preceding, the striation nearly
similar, the second stria with a more isolated longitudinal furrow at base;
abdomen finely, sparsely punctate in both sexes, the sexual characters very
feeble. Length 4.0-4.3 mm.; width 2.6-2.85 mm. Brazil (Chapada—

forest). March and November. Three specimens.......... occultus n. sp.
40—Second and third elytral strie deep and dilated basally................. 4I
Second and third striae not notably modified basally....................05 42

41—Form elongate, rhomboid-oval, convex; beak (co) long, arcuate, rather

BRAZILIAN BARINE 129

thick basally, strongly, closely sculptured throughout and as long as the
elytra, the antenne medial, deep black, the first funicular joint shorter
than the next two, the second obconic, one-half longer than wide, the club
fusiform, as long as the preceding five joints, or (2) much shorter, scarcely
so arcuate distally, less strongly sculptured, scarcely more than two-thirds
as long as the elytra; prothorax rufous, black only medially beneath, a
fourth (c") to two-fifths (9) wider than long, the sides subparallel, broadly
arcuate, gradually a little more so anteriorly, the tubulation abrupt, a sixth
the total length, two-fifths (c") or three-sevenths (2) as wide as the base;
basal lobe obtusely rounded, strongly, closely punctate; scutellum transverse,
broadly sinuate behind, glabrous and smooth, very short and concave (<),
or less transverse and flat (2); elytra triangular, with broadly arcuate
sides and strongly rounded apex, much wider than the prothorax, but only
one-half longer; grooves rather coarse, deep and abrupt, the second and
third very gradually broader basally; prosternum with the sulcus very
shallow, having (o") two rather strong slender processes and a very deep
oval perforation, the abdomen feebly impressed and rather finely, remotely
punctate at base, the prothorax at each side anteriorly with a transverse
excavation bordered behind by a series of erect spines, or (2) without
prosternal processes or perforation and wholly devoid of the anterior thoracic
excavations, the abdomen finely, sparsely punctate, the first segment with
a feeble longitudinal impression. Length 6.5-7.2 mm.; width 3.9-4.4 mm.
Brazil (Chapada—campo). October. Eight specimens...coronatus n. sp.
Form stouter, larger in size, rhombic-oval, the prothorax more obscure rufous;
beak (@) short, thick, cylindric, feebly arcuate, strongly sculptured, with
minute and sparse squamules, and only as long as the head and prothorax;
antenne medial, piceous, the first funicular joint not quite as long as the
next two, the second almost twice as long as wide, obconic, the club very
moderate, not as long as the preceding four joints; prothorax one-half
wider than long, evenly campanulate, the sides evenly and strongly rounded,
becoming not quite parallel at base, the tubulation two-fifths as wide as the
base, with very few punctures; basal lobe very obtuse, slightly impresso-
sinuate at apex, with fine punctulation and some small slender squamiform
hairs; scutellum smooth, one-half wider than long, slightly convex, with a
small basal impression; elytra slightly longer than wide, much wider than
the prothorax and three-fourths longer, evenly and rather obtusely parabolic,
the prominent humeri evenly rounded; striz moderate, shallow but distinct
and punctate, the first two grooved, the first three strongly dilated and deep
at base, the outer two very coarsely and deeply impressed; prosternal sulcus
deep; abdomen rather closely and strongly punctate, the first segment
impressed along the middle; femora somewhat finely, sparsely punctate.
Length 7.5 mm.; width 5.0 mm. Brazil (Chapada—campo). November.

Onepiemalerenample Mahi. SHmIsl a Beier. 2bSia an us nS eats crassulus n. sp.
42——scutellumbandithoraciovlobeglabrows: .4)0'2).) 0d) idd lowe ws athtadels davals. 43
Scutellum and lobe closely and conspicuously squamulose.................. 47
43—Body short and stout, oval, the sides of the elytra distinctly, subprominently

Bigeleiceyaslseite || 5% 1). Ue stk neonates eee tee ee Re ee ere a Se 44
Body more elongate, the elytra triangular, more or less strongly rounded at apex,

the median part of the sides never notably more arcuate............... 45

44—Color black, the prothorax bright rufous; beak (@) thick, rather strongly
arcuate, strongly, closely sculptured and as long as the head and prothorax;
antenne medial, black, short, the first funicular joint nearly as long as the
next three, the second but little longer than wide, the outer joints shorter,
the club as long as the preceding five; prothorax nearly three-fifths wider
than long, the sides slightly converging and feebly arcuate nearly to the

T. L. Casey, Mem. Col. X, Aug. 1922.

130

MEMOIRS ON THE COLEOPTERA

middle, then broadly and strongly rounding to the tubulation, which is
fully three-sevenths as wide as the base, almost impunctate, piceous-black
as usual; basal lobe smooth, subevenly rounded; scutellum moderate,
transverse, smooth, even, narrower at base than at apex; elytra not quite as
long as wide, much wider than the prothorax and _ nearly three-fourths longer;
grooves notably coarse, nearly smooth, the second and third not attaining
the base; femora coarsely, closely punctate; basal abdominal segment ( 9 )
convex, densely and strongly punctate, with a very deeply impressed median
line; prosternal canal broad, deep and abrupt. Length 4.65-4.75 mm.;
width 3.15-3.3 mm. Brazil (Rio de Janeiro). November. Two female
SPECIMENS: 14/5 Fein) Raed oll RR eS nh a Bie i decorus n. sp.

Color piceous-black, with similarly bright rufous prothorax; form nearly similar

but stouter, with relatively rather smaller prothorax and somewhat less
prominently rounded median part of the elytral flanks; beak and antennz
almost similar; prothorax shorter, fully three-fifths wider than long, the
sides becoming more parallel in nearly basal half, more oblique but similarly
arcuate anteriorly; tubulation and basal lobe similar; scutellum a little more
transverse, not so evidently narrowed at base and with the surface broadly,
feebly concave; elytra not quite so abbreviated, fully as long as wide, rather
more narrowly rounded at apex; grooves almost similar, but with the sutural
more strongly, catenulately punctate; punctures of the inferior surface
coarser, those of the femora not quite so coarse and more separated; first
ventral (@) similar, except that the slopes of the median sulcus are steeper
and more punctate anteriorly. Length 5.0 mm.; width 3.6 mm. Brazil
(Espirito Santo). H. Rolle. One female specimen.......... divisus n. sp.

Color throughout as in the preceding; body smaller in size, stout; beak (9)

thick, arcuate, strongly sculptured and rather longer than the head and
prothorax, the antenne nearly similar; prothorax rather shorter, almost
two-thirds wider than long, the sides subparallel and broadly arcuate,
becoming gradually more rounded and then strongly converging. anteriad,
the tubulation about two-fifths as wide as the base, the basal lobe smooth,
sinuato-truncate at tip, the lateral impressions small; scutellum very moder-
ate, strongly transverse, sinuato-truncate and smooth; elytra about as long
as wide, not so notably wider than the prothorax as in the two preceding,
the humeri not quite so prominent, three-fourths longer than the prothorax;
grooves rather coarse and deep, smooth, not quite attaining the base; under
surface coarsely punctate, the femora strongly and somewhat closely; first
abdominal segment (@) rather convex but shining and sparsely, though
coarsely, punctate, the median impressed line deep but broad and muclt less
abrupt or definite than in the preceding. Length 3.7 mm.; width 2.65 mm.
Brazil (Rio de Janeiro). November. One female example..letabilis n. sp.

45—Sides of the prothorax strongly rounding anteriorly from rather beyond the

middle; elytra grooved. Body deép black, the prothorax reddish-yellow;
beak arcuate, moderately slender, closely, confusedly sculptured at the sides
basally, elsewhere finely and rather sparsely punctate, as long as the elytra;
antenne just behind the middle, the first funicular joint rather elongate,
subequal to the next two, the second twice as long as wide, the club as long
as the preceding five joints; prothorax one-half wider, than long, the black
tubulation nearly two-fifths as wide as the base, the basal lobe very obtuse,
somewhat scabrous at tip; scutellum subquadrate, twice as wide as long, feebly
impressed medially; elytra only slightly longer than wide, evenly parabolic,
distinctly wider than the prothorax and fully two-thirds longer, the apex
somewhat obtusely rounded; grooves rather coarse, deep, sharply defined and
smooth, the second almost attaining the basal edge; metasternum with a
broadly impressed sulcus, sharp at the bottom, the first ventral abruptly flat,

BRAZILIAN BARIN 131

finely and sparsely punctate medially, with a very faint and obtuse median
stria. Length 5.7 mm.; width 3.65 mm. Brazil (Rio de Janeiro). One

Spechmen—-apparentlysfemmalerie:)2 . 2.15 spain) sedis Seles ses Ai ruficollis Boh.
Sides of the prothorax strongly rounding and converging from behind the middle;
elytrastinblyistniato-punctates... < 4)) sm cciaee tea ee atlas) Aor cia ko ePaeneeeee s 46

46—Body rhombic-oval, black and shining, the prothorax rufous; beak slender,
moderately arcuate, cylindric, smooth, roughly sculptured only at the sides
basally, not quite as long as the elytra; antennez just behind the middle,
slender and rather long, the first funicular joint much shorter than the
second, which is nearly as long as the next three, the club small, but little
longer than the preceding three joints; prothorax rather less than one-half
wider than long, the sides converging from the base, gradually, subevenly
rounding to the tubulation; basal lobe strongly rounded, with a narrow deep
impressed sinus at the middle of the apex; scutellum subquadrate, strongly
transverse and flat; elytra triangular, with broadly arcuate sides and strongly
rounded apex, distinctly longer than wide, much wider than the prothorax
and three-fourths longer; striz fine and feeble, sometimes slightly impressed
and always very distinctly though distantly punctate; abdomen evenly
convex, polished, extremely minutely and sparsely punctulate; sexual
characters apparently feeble, the prosternal spines wanting in the male.
Length 5.9-6.8 mm.; width 3.75-4.2 mm. Brazil (Rio de Janeiro). Five
specimens. [Cryptorhynchus sanguinicollis Germ.]....sanguinicollis Germ.
Body smaller and narrower, similar in coloration, subrhombic in form; beak
cylindric, smooth, moderately slender and arcuate, slightly thicker and
roughly sculptured basally, not as long as the elytra; antenne slightly
behind the middle, well developed, piceous, the first funicular joint not as
long as the second, which is longer than the next two, the third one-half
longer than wide, the club gradually pointed, not quite as long as the pre-
ceding four joints; prothorax three-fifths wider than long, nearly as in
sangutnicollis throughout, but with the small sinus at the apex of the basal
lobe much more minute and inconspicuous; scutellum similar; elytra more
distinctly longer than wide, with the oblique sides much less arcuate, the
apex more narrowly obtuse and the humeri more narrowly rounded; strize
even finer and feebler, but subsimilarly punctulate; under surface finely and
remotely punctulate; femora with rather coarse but well separated punctures;
abdomen convex and even, very minutely, sparsely punctate—apparently in
both sexes, the male without prosternal spines. Length 5.0-6.0 mm.;
width 2.8-3.7 mm. Brazil (Rio de Janeiro). November. Four specimens.
testaceicollis n. sp.

Body as in the preceding in general form and in coloration, very slightly stouter
but much less so than in saguinicollis; beak longer and more slender, especi-
ally toward base, distinctly and evenly arcuate and as long as the elytra,
nearly smooth, but coarsely and unevenly sculptured at the sides toward
base; antenne distinctly behind the middle, still longer, the first funicular
joint longer, though distinctly shorter than the second, which is a little
longer than the next two, the third one-half, the fourth a third, longer than
wide, the club narrow, gradually pointed, barely longer than the preceding
three joints; prothorax nearly as in the two preceding, the impressed sinus
in the apex of the basal lobe as distinct as in sanguinicollis and even wider,
very much more conspicuous than in festaceicollis, the scutellum very smooth,
rather less transverse and more narrowed at base than in either; elytra
nearly as in the preceding, more elongate and much less arcuate at the sides
than in sanguinicollis, about a fifth longer than wide; strie fine but very
distinct, the inner three finely groove-like and less distinctly punctured than
those thence to the grooved ninth and tenth, the strie not attaining the

132 MEMOIRS ON THE COLEOPTERA

basal margin; prosternum with a deep and smooth sulcus; abdomen in the
type flattened and minutely, remotely punctulate anteriad, with some scat-
tered stronger punctures basally, which are more distinct than in any speci-
men of testaceicollis. Length 5.8 mm.; width 3.7 mm. Brazil (Chapada—
campo). December. ‘One’ specimen... 0-7. 2 A 222i Sinan bicoloratus n. sp.
47—Form rather narrowly rhombic-oval, with only slightly prominent humeri,
polished black, with red prothorax, glabrous above, but with the thoracic
lobe and scutellum densely luteo-squamulose; under surface rather densely
luteo-squamose along the median parts, the abdomen subglabrous; beak
slender, cylindric, only feebly arcuate and as long as the elytra, sparsely
punctulate, more strongly and irregularly at the sides basally; antenne
obscure rufous, slender, submedial, the first two funicular joints much
elongated, the second the less but about as long as the next two, the club
very moderate, about as long as the preceding three joints; prothorax only
a fourth to third wider than long, the sides feebly converging and feebly
arcuate from the base, broadly rounding anteriorly to the tubulation, which
is rather short and less abrupt than usual; basal lobe broadly, obtusely
rounded, without lateral impressions; scutellum flat, quadrate, a little
wider than long; elytra elongate-oval, nearly a third longer than wide,
scarcely a fifth wider and about three-fourths longer than the prothorax, the
humeri broadly rounded and but slightly prominent; grooves abrupt, deep,
nearly smooth, the second not dilated basally and not quite attaining the
basal edge; femora rather slender, strongly punctate, the spicules moderate;
prosternum moderately sulcate; sexual characters apparently very slight.
Length 3.7-4.6 mm.; width 2.25-2.7 mm. Brazil (Chapada—campo).
November Eight specimenssymysel. cee re ie cite series ier dichrous n. sp.

It is rather beyond doubt that a number of the species above
described have already been published by Schénherr, but it is
impossible to identify them surely from the published descriptions,
and it will be much easier for one having the Schénherr types
before him, to locate them in the above series by the indicated
tangible structural characters—almost wholly ignored in the original
descriptions—and thereby determine the proper synonymy; this
remark applies, also, throughout the Barid series here brought to
notice. It is better to do this, even with the accompanying evil
of some synonymy, than to guess at identifications from the wholly
superficial descriptions formerly published, or in lieu of this, to
defer all progressive work on the Barid fauna of Brazil, for it is
practically impossible for me to actually view the Schénherrian
types. I am even uncertain of the above identification of rujficollis,
although sanguinicollis is almost certainly identified correctly.
Either divisus, letabilis or decorus is probably the pallidicollis of
Boheman, but which one, it is impossible to state under present
lights, as it is also to state definitely the identity of such conspicuous
entirely black species as decens and gravidulus.

The sexual characters of some species, such as convexus and
consentaneus, are very remarkable, not considering even the longer
beak of the male, which is still more accentuated in certain Mad-
arini. In such forms as those mentioned, the head and thoracic

BRAZILIAN BARINE 133

tubulation are much larger in the female than in the male, and, in
the female, the first abdominal segment—convex and densely
sculptured—reminds us of the ordinary generic characters in some
of the Diorymerini, such as Hiotus; in the present Stegotid species
however, this strange character applies only to the female, the male
having very simple abdominal characters. In coronatus the male
characters are remarkable, the excavation at the sides of the pro-
thorax near apex, bordered posteriorly by erect spines, not being
even suggested anywhere else that I have observed.

Stegotopsis n. gen.

The single type of this proposed generic group departs very little
from Stegotes in general structural characters, but its habitus is so
very different, owing to its peculiar coloration and absence of the
constantly prominent humeri of Stegotes, that a generic status
would seem to be warranted. The resemblance of the elytra to
those of the structurally very different Eucoleomerus, of an entirely
different tribal group, is most remarkable—possibly a case of
protective mimicry. As in some Stegotes, the male is larger than
the female and with a longer rostrum. The type may be described
as follows:

Stegotopsis mimetica n. sp—Form oval, only moderately convex, shining,
rufo-piceous in color, the legs, beak and antenne black; elytra flavate, the apical
third—about half at the sides—and a humeral spot piceous-black, the suture
narrowly blackish; beak moderately slender, cylindric, somewhat thicker basally,
minutely, sparsely punctate, coarsely and confusedly at the sides basally, strongly
arcuate and as long as the elytra (<7), or a little less arcuate and not quite as
long as the elytra (9); antenne slightly behind the middle, longer in the male,
the first funicular joint as long as the next two, the second fully twice as long as
wide and, as usual, less thick; club as long as the preceding four joints; prothorax
campanulate, two-fifths or more wider than long, the strongly, subevenly arcuate
sides becoming parallel at base, the tubulation abrupt, nearly a fifth the total
length and but little over a third as wide as the base, the basal lobe very broadly
obtuse, with punctured edge; scutellum transversely subquadrate; elytra some-
what longer than wide, about three-fifths longer than the prothorax and distinctly
wider, triangular, with evenly arcuate sides and rather narrowly rounded apex,
the humeri broadly rounded in continuation of the elytral sides; striz very fine
and feeble, almost obsolete, the punctulation minute and indistinct, 1, 9 and Io
deep; the strie are not dilated at base; under surface remotely and unevenly
punctulate; male with two moderate slender erect prosternal spines and a small
circular well, the first ventral deeply impressed and finely, sparsely punctate medi-
ally; female with the abdomen throughout very finely, remotely punctulate, the
first segment with a broadly impressed and simple median line, which is not
acute at the bottom. Length 4.5-5.0 mm.; width 2.8-3.2 mm. _ Brazil
(Chapada). March and October. Two specimens.

The femora are of the usual form in Stegotes, strongly, loosely
punctate and finely spiculate beneath.

134 MEMOIRS ON THE COLEOPTERA

Gladosius n. gen.

The moderate number of known species in this genus resemble
Diastethus somewhat in general form and in their bright metallic
coloration, but differ in the simple mesosternum, absence of sharply
defined areas of dense squamosity beneath and, most particularly,
in the very elongate and solid antennal club, which induced Schén-
herr to place the few forms known to him in the widely dissimilar
Cylindrocerus. The beak is more or less long, but of various forms,
the prosternum deeply and abruptly channeled, and the femora
are spiculate beneath, as in all the allied genera of this section;
the prothorax is abruptly tubulate at apex. I have at hand, at
the present time, four well characterized species as follows:

Prothorax, as viewed in profile, strongly and evenly convex behind the tubulation.
Rather narrowly rhombic-oval, polished, deep indigo-blue in color, the
under surface and legs more greenish blue; beak (<”) very slender, moder-
ately arcuate, slightly thickened basally and broadly subangulate dorsally
near the antennal insertion at basal fourth or fifth, fully as long as the elytra,
finely, sparsely punctate, flattened and more strongly punctate at the sides,
especially toward base; antennze piceous, the funicle thick and very compact,
the first joint one-half longer than wide, about as long as the next three, the
other six joints very short, transverse and compact, the club solid, cylindric,
extremely elongate, between three and four times as long as the entire
funicle; prothorax two-fifths wider than long, the sides broadly rounding
and subparallel, more rounding anteriorly, the abrupt tubulation three-
sevenths as wide as the base; surface very smooth as usual, the basal lobe
broadly obtuse, punctulate, strongly, lunately punctate along the edge
between the subobsolete lateral impressions; scutellum large, subquadrate,
smooth, feebly impressed and wider than long; elytra triangular, somewhat
elongate, three-fourths longer than the prothorax and much wider, the
oblique sides feebly arcuate; apex somewhat obtuse, the humeri prominent;
striz rather fine but deep, distinctly punctate, not grooved, slightly dilated
at base; under surface coarsely, loosely punctate, the femora rather sparsely;
abdomen with the first segment transversely impressed and sparsely punctu-
late, with a transverse and subquadrate, more convex and smooth median
part at apex. Length 5.1 mm.; width 3.35 mm. Brazil (Chapada—cam-
po): November. .One examples: aeieteept ees eee mirabilis n. sp.

Prothorax as in the preceding. Body larger, rhombiform, deep polished blue,
more greenish beneath, especially on the legs; beak (c”) thicker, a little
more so basally, rather compressed, strongly but sparsely punctate, distinctly
arcuate and three-fourths as long as the elytra; antennz shorter, with much
longer funicle and shorter club, the first funicular joint three times as long
as wide and almost as long as the next three joints, the second two-thirds
longer than wide, the club asymmetric, not quite as long as the funicle and
widest near basal third; prothorax rather more than one-half wider than
long, the strongly rounded sides gradually subparallel in nearly basal half,
the constriction with some rather strong punctures; apex three-sevenths as
wide as the base, the basal lobe nearly smooth, obtuse, with evident lateral
impressions, the apex acutely emarginatce; scutellum large, transverse,
smooth and narrowed from apex to base; elytra triangular, a fifth longer
than wide, much wider than the prothorax and three-fourths longer, the
oblique sides broadly arcuate, the apex somewhat strongly rounded; humeri

BRAZILIAN BARINZE 135

prominent and rounded; striz extremely fine and almost obsolete, but with
the small distant punctures distinct, the second and third deep and dilated
at base; under surface loosely pallido-squamulose along the middle; abdomen
broadly impressed and closely linearly squamulose basally. Length 7.0 mm.;
width 4.4 mm. Brazil. A single example, received from Desbrochers des
Loges under the name ‘“‘smaragdinus.”.............0.005- chalybeus n. sp.

Prothorax, viewed in profile, very evenly but feebly or more moderately convex.
2

2—Body rather elongate, rhombic-oval, bright metallic-green in color, with some
bluish shades above; beak ( 2) moderately thin and arcuate, rather smooth,
a little thicker and with stronger, sparse and irregular punctures basally,
three-fourths as long as the elytra; antenne at three-sevenths, piceous, the
first funicular joint as long as the next two, the second fully twice as long as
wide, the club very slender, with evident sutures, longer than the preceding
five joints; prothorax less than a third wider than long, the arcuate sides
gradually subparallel through about basal half, the tubulation with distinct
punctures and more than three-sevenths as wide as the base; surface finely,
sparsely punctate; basal lobe short, broadly sinuate at apex, the lateral
impressions feeble; scutellum slightly transverse, quadrate and smooth,
well developed; elytra triangular, with broadly arcuate sides and strongly
rounded apex, nearly a fourth longer than wide, four-fifths longer than the
prothorax and much wider, the humeri rather narrowly rounded; striz fine,
feeble, with fine punctures, the second and third dilated at base; intervals
with a few minute, sparse punctules; sterna closely punctate and with
brownish squamules; first abdominal segment ( 9 ) rather closely punctured,
broadly impressed along the middle. Length 6.0 mm.; width 3.7 mm.
Brazil (Rio de Janeiro). November. One specimen.......... lautus n. sp.
Body nearly similar, but not quite so narrow, blue in color, the anterior parts
more greenish; beak slender and nearly straight, arcuate and much thicker
basally, almost as long as the elytra, finely, sparsely punctate throughout;
antenne rather slender, black, near basal third, the first funicular joint as
long as the next four, the club cylindric, solid, over four times as long as
wide, not quite as long as the entire funicle; prothorax shorter, fully two-
fifths wider than long, the subparallel sides broadly arcuate, rapidly rounding
and converging anteriad, the entire surface and tubulation with the usual
remote microscopic punctulation; basal lobe broadly obtuse and subtruncate;
scutellum flat, smooth, one-half wider than long, not quadrate but with the
hind margin cuspidly prominent at the middle; elytra a fifth longer than
wide, much wider than the prothorax, with prominent and strongly rounded
humeri, the oblique sides feebly arcuate, the apex rather obtusely rounded;
strie fine, distinctly punctate, the second and third not dilated at base;
prosternum with a large area of dense whitish squamules at each side of the
sulcus; metasternum minutely, remotely punctulate in great part; abdomen,
in the type, with the first segment very finely and loosely punctate, broadly,
somewhat deeply impressed medially; femora minutely, sparsely punctulate,
the spicules strong, acutely dentiform on the anterior. Length 5.8 mm.;
width 3.4 mm. Brazil (Chapada—forest). October. A single specimen—
aApparemblyate mel eo tise, ee ietew. a See eee hs Saad sive oer 2 metallicus n. sp.

Mirabilis may be allied to Cylindrocerus azureus Boh., but in
that species the scutellum is said to be rounded, which is radically
different from its squarely rectangular shape in mirabilis. I suppose
the name ‘‘Diorymerus smaragdinus,’’ under which the above
chalybeus was sent to me, is a manuscript name of Desbrochers

136 MEMOIRS ON THE COLEOPTERA

des Loges; at any rate, I can find no reference to it; Cylindrocerus
cyaneus seems to resemble it, but; according to Boheman’s descrip-
tion, it differs in its longer beak and in the uni- and not bidentate
anterior femora; the metasternum is coarsely and sparsely punctate,
but a large medial’ part is flat, finely and very densely punctate,
squamulose and with a deep medial stria; the first two ventral
segments are feebly concave medially and finely, very densely
punctate and similarly clothed. There are doubtless a considerable
number of species in the genus.

Diastethus Pasc.

Although allied to Gladosius and Stegotes, the species of this
genus are immediately distinguishable by the prominent mesoster-
num, flat prosternum and the sharply circumscribed areas of dense
scales on the under surface, which features are not possessed, in
even rudimentary degree, by either of the genera mentioned.
From Gladosius the species differ also in having a normally small
antennal club, although most of them are similarly metallic in
body coloration; this last character is wholly unknown in Stegotes.
In the treatment of the Central American forms, Mr. Champion
combined several distinctly characterized genera, and, of the species
there described, only eurhinoides and violaceus can properly be
considered under the genus Diastethus; superbus and sulcipennis,
obliquus and rufipennis undoubtedly represent at least three distinct
genera, and humerosus and humeronotatus belong without much
doubt to the genus Microstegotes, defined further on in the present
paper, although no mention is made of the mandibles, which are
so peculiar and characteristic in Microstegotes; most of the other
species there described belong to the genus Stegotes. There are in
my collection at present seven species of Diastethus as follows:

Body metallic in coloration": 7. (ie 72424 e eae oe a eon 2
Body deep black throughout; mesosternum horizontally much produced, deeply
sinwate at apex. Poaiea ers PY ion ies oa let Peep once oe eee 5

2—Body shorter, broadly rhomboidal and bright cupreous, the legs blue-greenish.
Beak slender, evenly arcuate and as long as the elytra, minutely, sparsely
punctate and cylindric, a little more strongly punctate basally; antenne
slender, evidently behind the middle, the first funicular joint not quite as
long as the next two, the second between two and three times as long as
wide, the Club solid, with indistinct sutures, subglobular and as long as the
preceding three joints; prothorax very short and transverse, fully three-
fourths wider than long, in lateral profile most convex near the base; sides
subparallel in less than basal half, rapidly rounding and thence very oblique
and feebly arcuate to the strong tubulation; surface distinctly but remotely
punctate, the punctures coarser medio-basally; basal lobe very broadly
rounded, with upturned edge, the lateral impressions moderate; scutellum
large, strongly transverse, flat, the hind margin finely and strongly cuspid;
elytra slightly elongate, twice as long as the prothorax and a third wider,

BRAZILIAN BARINZ 137

with prominent and broadly rounded humeri, the oblique sides only just
visibly arcuate; apex obtusely rounded; mes-epimera greatly visible from
above; striz not coarse but very deep and groove-like, distinctly punctate,
the second and third dilated basally; intervals with some minute punctula-
tion; prosternum broadly before the coxe, sides of the metasternum, the
met-episterna and entire first two ventral segments, except at the sides,
extremely densely clothed with narrow whitish squamules. Length 7.0-7.2
mm.; width 4.7—5.0 mm. Brazil (Chapada—campo). October and No-

vember) ‘Dwotemaletspectmensia 44cm. oh ose ee wines lor cupreus n. sp.
Body more elongate, green or dark blue in color throughout; met-episterna
la bOUSH a I ee Soe eee at decd eh MG A iwiahstaetvebameiey one’s 3

3—Elytral strie fine but deep, the seventh and eighth rather strong, coarsely
and deeply grooved posteriorly. Body rhombic-suboval, deep blue, green
beneath, the elytra with feeble violaceous reflection; beak subcylindric,
rather thick, minutely, sparsely punctate, almost as long as the elytra, nearly
straight, rapidly arcuate, thicker and coarsely, confusedly sculptured basally;
antenne near basal third, piceous, the notably elongate basal funicular
joint as long as the next three, the second twice as long as wide, the club
stout, oval, nearly as long as the preceding four joints; prothorax barely
more than one-half wider than long, the strongly and subevenly arcuate
sides becoming parallel at base; constriction rather strongly, loosely punc-
tate; surface finely, remotely punctulate; basal lobe broadly, evenly rounded,
having some coarse punctures, the lateral impressions small; scutellum
large, smooth, twice as wide as long, parallel, the obtuse apex acicularly
cuspid at the middle; elytra barely longer than wide, much wider than the
prothorax and nearly three-fourths longer, evenly parabolic, with strongly
rounded and prominent humeri; strie distinct, finely punctulate, coarsely
exarate at apex, 2-4 dilated at base; metasternum and abdomen glabrous,
minutely, sparsely punctate, the former with a dense area of whitish squam-
ules at each side, deeply striate along the middle; prosternum less con-
spicuously squamulose; femora sparsely punctate and minutely spiculate.
Length 6.7 mm.; width 4.4 mm. Brazil (Rio de Janeiro). October. One
SPECIMEN eet ee a Co era todas PPR Sig ods Miche thags hyacinthus n. sp.
Elytral striz extremely fine, almost obsolete, minutely and remotely punctulate,
coarsely impressed and exarate at apex, 2-4 dilated at base, the seventh
and eighth a little stronger and more evidently punctate but not at all
groove-like; prosternum and sides of the metasternum with very dense pale
raf bennhllece = ooo cas Bbw cle Hid wane 0 oc tone ERG a toi aoe ee Och oir Seno ca eae 4
4—Body not very broadly rhomboid-oval, bright blue in color, the under surface
and beak more greenish; beak (”) very nearly as long as the elytra, moder-
ately slender, nearly straight, rapidly arcuate, a little thicker and more
coarsely, confusedly sculptured basally, the upper surface there becoming
longitudinally obtusely bitumerose or feebly and doubly bent; antenne
behind basal third, piceo-rufous, the first funicular joint longer than the
next two, the second twice as long as wide, the club rather large, longer than
the preceding five joints, asymmetric, more convex externally, widest near
basal third, thence gradually becoming finely acuminate at apex; prothorax
three-fifths wider than long, the arcuate sides subparallel in less than basal
half, obliquely rounding thence to the rather short and scarcely abrupt
tubulation, the constriction with numerous moderate punctures; surface
with very minute and remote punctulation; basal lobe very broadly, evenly
rounded, with a row of coarse punctures, the lateral impressions rather
large and deep; scutellum nearly as in the preceding but less transverse;
elytra a fifth longer than wide, much wider than the prothorax and two-
thirds longer, somewhat narrowly, subevenly parabolic, the humeri strongly

138 MEMOIRS ON THE COLEOPTERA

rounded and prominent; mesosternum sinuate; metasternum minutely,
sparsely punctulate; first ventral broadly, feebly impressed, finely, densely
punctate and squamulose, the lateral and basal parts of the impression, as
well as the second segment, lessso. Length 6.6mm.; width4.0mm._ Brazil
(Rio de Janeiro). October. A single male.............. cobaltinus n. sp.
Body nearly similar in form, polished, bright bluish-green in color; beak (<7)
not very slender, cylindric, three-fourths as long as the elytra, rather strongly,
closely punctate, broadly arcuate, gradually only a little more so and coarsely,
confusedly sculptured basally; antennz near basal third, piceo-rufous, rather
slender, the funicular joints as in the preceding, the club abrupt as usual,
as long as the preceding six joints, widest near the base, a little more convex
there on one side than the other, thence gradually acuminate; prothorax
one-half wider than long, the strongly arcuate sides becoming subparallel in
about basal third, rounding and convergent thence to the more abrupt
tubulation having scattered strong punctures; surface minutely and remotely
punctulate; basal lobe extremely broadly but evenly rounded, with distinct
lateral impressions, its surface with a few sparse punctures near the apex;
scutellum smooth, quadrate, not quite twice as wide as long, the subtruncate
apex with a small acute median cusp; elytra subevenly parabolic, a sixth
longer than wide, much wider than the prothorax and three-fourths longer,
the humeri narrowly rounded and prominent; mesosternum sinuate; meta-
sternum very minutely, remotely punctulate; first ventral broadly, feebly
impressed, with all the impression, except the periphery, minutely, densely
punctulate and finely squamulose, the second segment with*ea few small
punctures and squamules. Length 6.7 mm.; width 3.8 mm. Brazil (Rio
de Janeiro). October. A single male, differing much from the preceding
in.the/formyottheibeaks.9cset eae ee eee eae splendens n. sp.
Body much larger, elongate, rhomboidal, deep indigo-blue, with faint violaceous
reflection; beak moderately slender, cylindric, distinctly and evenly arcuate,
a little longer than the head and prothorax, very minutely, sparsely punctu-
late, somewhat strongly and very unevenly sculptured at the sides basally,
as usual not distinctly separated from the head above, the frontal puncture
deep; antennz piceous, behind basal third, the first funicular joint long,
equal to the next three, the second fully twice as long as wide, slender and
subpedunculate basally, the club asymmetric, as long as the five preceding
joints, widest at the middle, but more convex on one side and, on that side,
concave thence to the finely acuminate tip; prothorax one-half wider than
long, the arcuate sides parallel in basal, strongly oblique in apical, half, the
tubulation rather short and gradually formed; basal lobe very short, broad
and transversely obtuse, with strong lateral impressions, and with a few
punctures; scutellum large, transverse, smooth and parallel, sinuate at base
and with the middle of the truncate apex acicularly produced; elytra almost
a third longer than wide, much wider than the prothorax and nearly twice
as long, the oblique sides almost straight; apex obtusely rounded; pos-
terior discal elevation strong, the humeri prominent and strongly rounded;
striz extremely fine, feeble and minutely punctulate, 2-4 dilated at base,
very coarsely, confusedly excavate at apex; ninth interval broadly convex;
mesosternum thick, truncate; base of the abdomen very broadly and feebly
concave, finely, closely punctate and with very minute setules in the male.
Length 8.0 mm.; width 5.0 mm. Brazil (Santarem). One example.
enormis n. sp.
5—Form very elongate, rhomboidal, nearly as in the last but flatter above; beak
(@) cylindric, finely, sparsely punctulate, a little more coarsely but regularly
at the sides basally, almost straight, gradually arcuate in nearly basal half,
three-fourths as long as the elytra; antenne long, piceo-rufous, near basal

BRAZILIAN BARIN 139

third, the first two funicular joints much elongated and subequal, each as
long as 3-5 combined, the club small, regular, oval, as long as the three
preceding joints; prothorax one-half wider than long, campanulate, the
evenly arcuate sides gradually parallel at base; tubulation very short,
gradual and subobsolete; surface much flattened, nearly smooth, alutaceous,
with some strong scattered punctures anteriorly; basal lobe nearly smooth,
broadly and very evenly arcuate, the lateral impressions oblique and deep;
scutellum smooth, twice as wide as. long, parallel, sinuato-truncate at base,
the feebly angulate apex aciculate medially; elytra a third longer than wide,
much wider than the prothorax and twice as long, the oblique sides nearly
straight; apex rather sharply rounded, the humeri prominent, somewhat
narrowly rounded; striz fine but distinct, with very distinct small punctures,
2 strongly, 3 and 4 feebly, dilated at base, the exaration at apex very coarse,
deep and confused; two lateral intervals convex; metasternum impunctate
medially, with a dense patch of white squamules at each side; abdomen
convex, almost impunctate, feebly impressed along the middle basally in
the female. Length 8.8 mm.; width 5.0 mm. Brazil (Santarem). One
SPECIMEN a Pere ee pare Rel asin ie re saute Ne wade eee eee longulus n. sp.
Form less elongate and more convex, subrhombic; beak (c”) rather more slender
and much longer, very nearly as long as the elytra, feebly arcuate, rapidly
more so at base, minutely, sparsely punctulate, strongly and closely so on
the compressed sides basally; antennz at two-fifths, long and slender, piceo-
rufous, the first funicular joint one-half longer than the second, which is
subequal to the next two, the third nearly one-half longer than wide, the
club small, narrow, rapidly pointed at apex and as long as the preceding
three joints; prothorax three-fifths wider than long, the sides strongly
arcuate, widest at basal two-fifths, the less arcuate anterior obliquity ending
at the long and well developed tubulation; surface convex, very minutely,
remotely punctulate, with numerous strong punctures anteriad; basal lobe
evenly and less broadly arcuate, with an irregular line of strong punctures,
the lateral impressions subsimilar; scutellum nearly similar; elytra but little
longer than wide, much wider than the prothorax, but only three-fourths
longer, the oblique sides nearly straight, gradually becoming strongly rounded
behind, the prominent humeri somewhat narrowly rounded; striae extremely
fine and indistinct, subobsolete, the punctulation scarcely traceable, but
distinct as usual in the more impressed seventh and eighth strie, 2-4 abruptly
dilated at base; apical exaration coarse, deep and confused; subapical
prominence not so conspicuous; under surface nearly similar, the dense
prosternal squamules tawny in color, the dense whitish area at the sides of
the metasternum similarly margined externally by a raised smooth bead;
base of the abdomen broadly flat and subimpunctate in the type. Length
7-8 mm.; width 4.7 mm. Brazil (Rio de Janeiro). November. One
SPECIMICH AAD tan re, CAPS De SI Od 8 atratus n. sp.

In no one of the species at hand could the pronotum be con-
sidered to have even a remote suspicion of gibbosity, and the type
of the genus—Centrinus tumidus Boh.—from Sao Paulo, cannot
therefore be included in my material. Centrinus parellinus, or
interstitialis, of Boheman, which also belong to this genus, may
possibly be represented above, however, but in cobaltinus, splendens
and hyacinthus, which are the only ones to be considered in this
respect, the interstitial punctures never become strong enough to
be noticed, except perhaps in the last, and in that, the antennal

140 MEMOIRS ON THE COLEOPTERA |

club could not be called ‘‘pyriform’’ in any sense. In fparellinus,
the beak is shorter than in any one of the three mentioned, and the
expression relating to the elytra ‘‘latitudine vix dimidio longiora,”’
is not in the least applicable.

Microstegotes n. gen.

The body in this genus is small, broadly rhomboidal, very smooth
and glabrous throughout, the femora rather slender and spiculate
beneath, as in all the preceding, the tibia evenly rounded externally
toward base and the anterior cox separated by fully their own
width. The prosternum is peculiar, it being perfectly flat, but
with an oblong median part, in which the lustre becomes dull and
alutaceous. The very remarkable mandibles have been described
under the generic diagnosis. The only species at hand is the
following:

Microstegotes scapulinus n. sp.—Body short, broadly rhombic, smooth and
polished, black, the elytra each with a large humeral red spot, extending slightly
over half way to the suture, the humeral angle blackish; beak (@Q) slender,
smooth and cylindric, four-fifths as long as the body, feebly arcuate, gradually
strongly so toward base, minutely and remotely punctulate, a little more strongly,
irregularly so at the sides basally, separated from the head by a moderate reén-
trant angle; antenne at two-fifths, slender, piceous, the scape very short, coming
very far from attaining the eye; basal joint of the funicle much elongated, fully
twice as long as the second, the remainder missing in the type; prothorax two-
thirds wider than long, the rounded sides not becoming quite parallel basally,
the tubulation abrupt and well developed; entire upper surface very smooth
and without any form of punctuation; basal lobe broadly rounded, the oblique
lateral impressions deep; scutellum short and transverse, transversely canalicu-
late; elytra triangular, as wide as long, distinctly wider than the prothorax and
two-thirds longer, the oblique sides feebly arcuate, the apex rather strongly
rounded; humeri prominent and narrowly rounded; striae extremely fine and
feeble, feebly punctulate, coarser and more punctate on the flanks, feebly dilated
basally, not attaining the basal edge, coarser and exarate apically; femora
strongly and loosely, irregularly punctate; abdomen strongly convex, nearly
smooth, the punctulation very minute and sparse. Length 3.4 mm.; width 2.4
mm. Brazil (Santarem). One specimen.

As before stated, it is highly probable that Diastethus humerosus
and humeronotatus, of the Central American fauna, also belong to
this genus, but it would be necessary to examine the prosternum
and mandibles, before any final statement could be made.

Pseudogarnia n. gen.

In general habitus, the single species of this genus known thus
far departs widely from any of the preceding genera. The body
is symmetrically rhombic, the anterior coxe separated by their
own width, the prosternum with a moderately deep though rather

BRAZILIAN BARINZ 141

sharply defined channel. The beak is short and thick, peculiarly
sculptured and separated from the head by a well defined impressed
line, the antenne notably short, medial, the first funicular joint
about as long as the next three, the club oval, densely pubescent,
as long as the preceding four joints, gradually pointed and with
conspicuous sutures, the basal segment less than half the mass.
The mandibles are straight, coming together on a perfectly straight
line, which is scarcely modified, having medially only an almost
imperceptible nick. The femora are wholly devoid of the small
inferior spicule characterizing all the preceding genera, and the
tarsal claws are connate at base. The type is the following:

Pseudogarnia obesula n. sp.—Rhomboidal, strongly convex, smooth, polished
and very deep black throughout; beak much shorter than the prothorax, thick,
moderately arcuate, strongly, closely sculptured, not much compressed, the distal
upper surface with close and longitudinally strigose sculpture and with a fine
distinct median carina; more basally the surface becomes smoother, with several
longitudinal lines of close-set punctures; prothorax a fourth wider than long,
the sides moderately converging, evenly and slightly arcuate from base to about
apical third or fourth, there becoming rapidly rounded and converging to the
very moderate and not very abrupt tubulation, which is three-sevenths as wide
as the base, its sides being oblique and not parallel; surface with minute sparse
punctulation, becoming strong and sparse punctures toward the sides, still coarser
and closer throughout the inferior flanks; basal lobe rather strongly rounded,
with a very minute and feeble sinus at the middle of the apex, the lateral impres-
sions wholly wanting; scutellum rather longer than wide, flat, parabolic and
somewhat closely fitting the elytra, the latter very evenly oval, but little longer
than wide, a fifth or sixth wider than the prothorax and three-fifths longer, the
humeri not very prominent; grooves strong, deep, abrupt and nearly smooth,
not so coarse and slightly punctulate suturally; intervals flat, with minute
sparse punctulation in uneven single lines, the first and second near the scutellum
with very few slender whitish squamules; under surface strongly, somewhat
closely punctate, the abdomen more finely and sparsely, not modified in the type;
legs rather short. Length 3.7 mm.; width 2.45 mm. Brazil (Santarem). One
specimen, of undetermined sex.

I know of no other generic type particularly allied to this, either
in the Brazilian or Central American faunal regions.

Leptogarnia n. gen.

In some respects this genus is allied to the preceding, as in the
absence of femoral denticles and the simple rounded external outline
of the tibize basally, but the beak is altogether different, being
long, strongly sculptured, rather thick basally, very gradually
tapering thence to the tip, with the channel at the sides beyond
the antennz very long and conspicuous; it is separated from the
head by a rather feeble impression. The mandibles are much
shorter, prominent when closed and apparently with straight inner
lines; the anterior coxee are separated by fully their own width,

142 MEMOIRS ON THE COLEOPTERA

the prosternum subglabrous, broadly and shallowly concave, and
the tarsal claws are rather long and strongly basally connate.
The type is as follows:

Leptogarnia polita n. sp.—Oblong-oval, moderately convex, deep black, smooth
and polished, glabrous throughout; beak (@ ) fully as long as the elytra, evenly
and moderately arcuate, the antennze submedial, moderate, with oval club;
prothorax a fifth wider than long, the subparallel sides broadly arcuate, gradually
rounding more apically to the strongly tubuliform and truncate apex, the tubu-
lation abrupt though with oblique sides, three-sevenths as wide as the base;
surface with remote and infinitesimal punctulation, the inferior flanks with coarse
and ruguliform sculpture; basal lobe small and rather abrupt, truncate, without
lateral impressions; scutellum well developed, quadrate, flat, slightly transverse,
clase-set at the sides but widely free apically; elytra a fourth longer than wide,
only a sixth wider than the prothorax and three-fifths longer, oval, rather strongly
rounded at apex, the humeri broadly rounded and scarcely at all prominent;
grooves sharply defined, deep, punctulate along the bottom and not very coarse,
all attaining the basal.edge without dilatation; intervals flat, broadly convex
toward the suture, especially basally; under surface moderately and rather loosely
punctate, the met-episterna subscabrous; femora slightly inflated, minutely and
sparsely punctate. Length 4.4 mm.; width 2.3 mm. Brazil. Deyrolle.

I received the type of this species from Desbrochers des Loges,
under a manuscript name.

Tenemotes n. gen.

This and the following genus are distinguished from any others
of the Centrinini by having a very acute spiniform tooth on the
outer side of each tibia near the base, a character rather common
in the Diorymerini. In Yenemotes the body is broadly suboval
and convex, glabrous above, except at the thoracic apex, where the
scales are interrupted medially, but with conspicuous dense whitish
squamules on the basal thoracic lobe and scutellum; each puncture
beneath bears a minute and slender squamule, these becoming
- coarse, dense and conspicuous on the prosternum, which has a
moderate concave channel, not sharply defined at the sides, and
large, close-set coxee. The beak is nearly straight, densely sculp-
tured and micro-squamulose, the antenne medial, with extremely
small club, this being smaller than in any other genus to be recalled
at present. The mandibles are not decussate, their inner margins
slightly denticulate and, when closed, have a rounded outline; the
tarsal claws are connate and moderate in size, the femora rather
thick but subparallel. The entire upper surface is distinctly punc-
tate, and the elytral grooves are very coarse. The abdominal
sexual characters are rather conspicuous. There are at hand three
species as follows:

Body oval, convex, deep black and moderately shining; beak nearly straight,

BRAZILIAN BARIN 143

feebly tapering toward apex, scarcely as long as the prothorax, the antenne
black, with rather short scape, the first funicular joint nearly as long as the
next two, the seventh dilated, the club subglobular, about as long as the
two preceding joints and scarcely thicker than the seventh; prothoradx a
fourth wider than long, the sides slightly converging and nearly straight,
gradually a little more converging and feebly arcuate beyond about the
middle to the apex, which is not in the least constricted or tubulate, slightly
prominent at the middle and two-fifths as wide as the base; surface with
rather strong and well separated punctures, becoming coarser, denser and
squamulose toward apex, close-set on the inferior flanks; basal lobe broadly
arcuate, without lateral impressions; scutellum quadrate, a little wider than
long, free; elytra just visibly longer than wide, much wider than the pro-
thorax and three-fourths longer, oval, the middle of the sides a little more
arcuate; humeri moderately prominent, rounded; grooves very coarse,
distinctly punctured along the bottom, attaining the base without dilation;
intervals with rather small but strong, loose and confused punctures; under
surface and femora with strong and rather close punctures; abdomen at
base with a broad and feeble, densely punctate and feebly squamulose
concavity. Length 4.7-5.0 mm.; width 3.2-3.3 mm. Paraguay. Dr.
Drake. Two specimens—apparently male............... parviclava n. sp.
Body suboval and convex, rather more elongate and more polished, deep black;
beak (<) nearly straight, feebly tapering, about as long as the prothorax,
densely sculptured and loosely squamulose; antenne black, nearly as in
the preceding; prothorax almost a third wider than long, the sides converging
and subevenly, rather strongly arcuate from base to apex; apex, sculpture
and vestiture nearly as in the preceding; scutellum somewhat shorter, more
transverse and more trapezoidal; elytra much more elongate, a fourth longer
than wide, three-fourths longer than the prothorax, otherwise nearly as in
parviclava, but more narrowly rounded at apex; grooves very coarse, dis-
tinctly punctate; intervals not quite flat, similarly punctate; male with the
first ventral segment broadly and deeply concave, strongly and closely
punctate medially, the interstices shining, the second segment with a trans-
verse and densely spongiose brown area at the centre, the fifth convex,
minutely, very densely punctate and setulose. Length 5.8-7.0 mm.; width
3.7-3.9 mm. Brazil (Chapada—campo). October. One specimen.
abdominalis n. sp.
Body somewhat as in abdominalis but still narrower and more elongate, nearly
similar in color, sculpture and vestiture; beak (co) rather longer and just
visibly more arcuate, about as long as the head and prothorax, the latter in
profile distinctly less convex, smaller in size and only a fourth wider than
long, the converging sides from base to apex much less arcuate; scutellum
not so broad; elytra subsimilar, but almost a third longer than wide, three-
fourths longer than the prothorax; grooves almost as coarse and a little
deeper; intervals narrower; male with the first ventral segment much more
deeply concave at the middle than in the preceding, the second segment with
4 small transverse medial area at base, which is covered with coarser, dense
and silvery squamules, the fifth flatter than in the preceding species and
with stronger, more discrete sculpture. Length 5.3 mm.; width 3.2 mm.
Brazil (Chapada). March. One specimen.............--- constans n. sp.

The head is not separated from the beak by any very definite
depression. The genus constitutes a very peculiar and isolated
type among the other allies of Centrinus.

144 MEMOIRS ON THE COLEOPTERA

Tenemotides n. gen.

Although possessing the same tibial characters, the species of
this genus differ very greatly from those of Tenemotes in their
small and abbreviated, smooth and shining body, wholly glabrous,
excepting the densely albido-squamulose scutellum, and in the
relatively very large prothorax. The beak in the male is longer
than the elytra, rather strongly, evenly arcuate, strongly sculptured
and gently tapering from the rather thick base to apex, while in
the female it is shorter, not longer than the elytra and more abruptly
slender, smooth and cylindric beyond the antenne, which are near
basal third. The prosternum has a very moderate and not very
sharply limited channel, at the middle of the margins of which—
not just before the coxee as usual—there is a very small subacute
tooth in the male. The mandibles are straight but short, the
anterior coxee moderately separated and the connate tarsal claws
are rather small and slender. There are at least two species as
follows:

Form short, oblong-suboval, convex, shining, black, the prothorax obscure rufous;
beak long, arcuate, separated from the head by a feeble depression; antenne
rather long and slender, near basal third, piceous, the first funicular joint as
long as the next two, the second fully twice as long as wide, the club rather
narrowly oval, as long as the preceding four joints; prothorax a third (<7)
to two-fifths (9) wider than long, large, only very little narrower than the
elytra, the sides subparallel and feebly arcuate for two-fifths, thence broadly
rounded, becoming oblique and nearly straight to the apex, which is tubulate,
with arcuate tip and about a third as wide as the base, the basal lobe punctate
and feebly sinuate; surface with only remote and infinitesimal punctulation;
scutellum flat, suboval, a little wider than long, well developed; elytra as
wide as long, triangular, with arcuate sides and narrowly rounded apex, one-
half longer than the prothorax; middle of the sides a little more arcuate;
humeri only slightly prominent, rounded; grooves strong and deep, sharply
defined and scarcely punctate, not dilated at base; intervals flat, virtually
smooth; abdomen convex, the basal segment rather closely punctate, im-.
pressed along the median line (c*) or nearly even (@); femora coarsely,
longitudinally punctato-rugose; male larger than the female. Length 3.2—
3.7 mm.; width 2.15-2.25 mm. Brazil (Chapada—forest). March and
November sa hree specimenszacy cseitvtk etic sateen orbatus n. sp.

Form and general appearance, sculpture and coloration almost as in the preceding;
beak and antennz (<) nearly similar; prothorax differing in having the
sides more evenly arcuate, becoming parallel only near the base, and with
the tubulation much narrower, being much less than a third as wide as the
base; elytra nearly similar, but still more narrowly rounded at tip; abdomen
in the male with the strongly and closely punctate basal segment somewhat
more convex, narrowly, linearly impressed along the middle; met-episterna
more finely, less closely punctate, especially toward their inner margin.
Length 3.8 mm.; width 2.35 mm. Brazil (Chapada—forest). November.
A‘singlermales say wit, SePe ees Sees ee ee dissimulans n. sp.

The very small and feeble tooth on each edge of the prosternal

BRAZILIAN BARINE 145

sulcus, at the middle of its length, in the males of this genus, is an
unobtrusive but rather decisive character.

Paragarnia n. gen.

This is the first of a series of genera having decussate and strongly,
internally dentate mandibles; many of the genera are monotypic,
so far as known at present. In Paragarnia the body. is oval,
convex, glabrous and shining, the beak rather thick, moderately
arcuate and separated from the head by a fine deep line. The
antenne are slightly behind the middle, with short scape, the
funicle rather long and slender, with the first joint as long as the
next three, two to seven small and subequal, the club abrupt,
elongate-oval, densely pubescent, with very deep sutures and fully
as long as the preceding five joints. The prosternum is feebly
impressed, the coxee moderately separated, the femora simple and
subparallel and the tibiz rather slender, evenly rounded externally.
The prothorax is only feebly constricted apically and the scutellum
is small, oval, flat and in close contact with the pronotum and
elytra. The type is the following:

Paragarnia atrolucens n. sp.—Evenly oval, deep black and shining throughout;
beak () a little longer than the head and prothorax, very feebly tapering through-
out, not very slender, shining, moderately sculptured, discretely at base; antennz
rufo-piceous; prothorax a third wider than long, the sides feebly converging and
broadly, moderately arcuate, more so and more converging near the apex to the
short and laterally oblique tubulation, which is not quite half as wide as the base;
surface minutely, remotely punctulate, coarsely and rather closely punctured
and longitudinally subrugose at the sides; basal lobe small, gradual, not more
punctured and without lateral impressions, its apex with a small and feeble
sinus, fitting the scutellum, which is moderate and somewhat longer than wide;
elytra evenly oval, slightly elongate, only a little wider than the prothorax and
three-fourths longer, the humeri broadly rounded, not evidently prominent;
strie groove-like, fine and feebly punctulate suturally and coarser, deeper and
smoother laterally, not at all dilated at base; intervals only with remote, infinites-
imal punctulation; under surface rather strongly but loosely and unevenly
punctate, the abdomen very smooth, impressed at base medially and at the
middle of the fifth segment; legs picescent, finely, sparsely punctate and rather
short. Length 3.3-3.8 mm.; width 1.65-2.0 mm. Brazil (Santarem). Four
specimens.

The antennez, scutellum, claws and mandibles will readily serve
to identify this species when discovered.

Spolatia n. gen.

With an outline and general structure of the body and scutellum
resembling the preceding almost precisely, the type of this genus
differs to an astonishing degree in the structure of the antenne,
which are short, thick and extremely compact, the funicle merging

T. L. Casey, Mem. Col. X, Aug. 1922.

146 MEMOIRS ON THE COLEOPTERA

into the club without trace of differentiation of the latter, except
in its dense gray vestiture and deep sutures; the basal joint of the
funicle is not quite half as long as the remaining joints, which are
strongly transverse and compactly connected. The beak is thick
and arcuate, the prothorax broad and scarcely at all constricted
at apex, the flat scutellum in close and even contact with the
thoracic lobe and elytra, the prosternum feebly impressed and the
coxe well separated. The type is as follows:

Spolatia gradata n. sp.—Body faintly subrhombic-oval, very smooth, polished,
glabrous and deep black throughout; beak as long as the prothorax, thick,
subcylindric and arcuate, minutely and loosely punctulate and polished through-
out, separated by a moderate transverse impressed line; antenna blackish,
medial, with short scape, the club a little longer than the preceding three joints;
prothorax a fourth wider than long, the sides slightly converging and almost
straight to about the middle, there rounding, becoming more converging but
scarcely arcuate to the broad and feeble apical sinuses; apex truncate, four-
sevenths as wide as the base; surface extremely smooth and devoid of any kind
of sculpture throughout, the basal lobe short and gradual, with truncate apex
and minute feeble lateral impressions; scutellum somewhat wider than long,
broadly ogival, truncate at base, very smooth and flat; elytra a fifth longer
than wide, evidently wider than the prothorax and two-thirds longer, the oblique
sides only feebly arcuate, rapidly rounding at apex, the latter broadly obtuse;
humeri broadly rounded, only slightly prominent; strize extremely fine, feeble
and impunctate, the sutural but little more marked and remotely subpunctulate;
sterna rather strongly but loosely punctate, the abdomen minutely and sparsely
so, smooth, not modified at base in the type; femora slender, finely, sparsely
punctulate, the anterior with a very small obtuse tooth beneath. Length 3.3
mm.; width 1.8mm. Brazil (Santarem). One specimen.

The antenne in this genus, with their remarkably compact
form and completely undifferentiated club, constitute one of the
exceptional developments in the subfamily.

Linogarnia n. gen.

This is another genus, which, although monotypic, is rendered
necessary by a different form of scutellum, this being widely sepa-
rated from the surrounding elytra and thoracic lobe, or what
might be termed free. The beak is rather long, feebly tapering
and subcompressed at the sides basally, not separated from the
head by a sharply marked reéntrant angle, the antenne submedial,
the funicular joints broader distally but not very compact, the
first longer than the next two, the second twice as long as wide,
the club oval, clearly segmented, somewhat abruptly formed and
nearly as long as the preceding four joints. The prosternum is
narrowly and shallowly channeled, the coxe only very moderately
separated, the femora rather thick but subparallel and unarmed,
and the tarsal claws are somewhat long and strongly connate at

BRAZILIAN BARINE 147

base. The prothorax is strongly tubulate, the elytra deeply grooved
and the upper and lower surfaces partially squamulose. The type
may be described as follows:

Linogarnia suturalis n. sp—Rhomboidal, rather convex, polished and deep
black throughout, the squamules white, sparse at the sides of the prothorax
apically and basally and more conspicuous at the base of all the strial intervals
and narrowly along the suture, becoming more diffused at apex: the punctures of
the under surface and legs bear each a distinct narrow white scale; beak nearly
as long as the elytra, rather smooth, shining, strongly and loosely sculptured and
sparsely squamulose at the sides basally; prothorax a fourth wider than long,
the sides moderately converging and nearly straight for three-fifths, then gradually
rounding to the large tubulation, which is half as wide as the base and a fifth or
sixth the total length, ‘almost punctureless; surface very smooth, not at all
punctulate, the basal lobe very short, broad and gradual, having a few punctures
along its entire edge, without trace of lateral impressions; scutellum glabrous,
feebly convex, as long as wide and obtrapezoidal; elytra nearly a third longer
than wide, much wider than the prothorax and three-fourths longer, subtriangular,
with distinctly arcuate sides and rather narrowly rounded apex, the humeri
feebly prominent, though very broadly rounded; grooves deep, smooth; intervals
very smooth, except where squamulose; abdomen finely, loosely punctulate and
sparsely squamulose. Length 3.7 mm.; width 2.2 mm. _ Brazil (Rio de Janeiro).
November. One specimen.

The partial squamulation of the surface will render this species
immediately recognizable among the allied glabrous genera.

Tudeniaspis n. gen.

In this genus the scutellum is of the same type as in the preceding,
but the mandibles differ much from those of the three preceding,
being prominent when closed and not decussate; they are however
strongly dentate on the inner margin of one or both. The body is
rather oblong-suboval, convex, subglabrous above, each of the
rather strong punctures of the under surface with a small narrow
white squamule. The beak is slender, very feebly arcuate, cylindric
and separated from the head by an abrupt deep groove, the antenne
submedial, somewhat slender, the first funicular joint about as long
as the next three, the club oval, rather abrupt and about as long
as the four preceding joints. The prosternum is somewhat deeply
channeled and the coxe moderately separated, the femora rather
inflated, simple, the tarsi as long as the tibiz, with the claws long,
straight and strongly connate at base. The prothorax is briefly
and not very abruptly subtubulate, and the elytra are grooved.
The dorsal abdominal segments, under the elytra, have each a
sublateral and marginal spot densely clothed with minute pale
brown squamule, giving a velvety effect. There are two species
at hand as follows:

Form not broadly oval, convex, shining and deep black; beak (9) slender,

148 MEMOIRS ON THE COLEOPTERA

evenly cylindric throughout and very feebly arcuate, as long as the head
and prothorax and minutely, loosely punctulate; prothorax a fourth or
fifth wider than long, the sides feebly converging and broadly, subevenly
arcuate from base to the subobsolete apical constriction, the apex not dis-
tinctly tubulate and a little less than half as wide as the base; surface with
strong and close punctures, gradually becoming fine and sparse medially,
where there is a feebly defined smooth median line; basal lobe short, very
gradual, obtusely cuspidiform at apex; scutellum slightly impressed, ob-
trapezoidal; elytra evenly and somewhat obtusely oval, a fourth longer than
wide, a little wider than the prothorax and two-thirds longer, the humeri
rounded and feebly prominent; grooves strong, narrower toward the suture,
obscurely punctulate; intervals flat, with minute and remote punctules in
single line, all the intervals with very few fine pale squamules at base; sterna
coarsely, closely punctate; abdomen evenly convex, finely and sparsely
punctate throughout inthe type. Length 3.4mm.; width1.75mm. Brazil.
A single example, without further record of locality, sent by Desbrochers
Ges LOGOS an SEs way he peti, coe Soe ae eT et a ee a nigrina n. sp.
Form slightly more elongate and somewhat larger, nearly similar in coloration
and sculpture; beak (@) as in the preceding but a little more shining and
somewhat longer, as long as the head and prothorax, the latter larger, only
a fifth wider than long, the sides similar but ending anteriorly at a more
pronounced constriction, the apex briefly but evidently tubulate; sculpture,
basal lobe and scutellum almost similar; elytra almost similar but somewhat
more elongate, and only three-fifths longer than the prothorax; grooves
coarser throughout; minute interstitial punctulation in single line but more
evident; sterna, abdomen and legs almost similar, the claw joint very
elongate in both species. Length 3.6 mm.; width 1.85 mm. Brazil (San-
tarem).” ‘One’ specimen wh so eeace oe ie oe ee eae riparia n. sp.

These species, though rather closely allied, can be seen at once
to be distinct by the different form and size of the prothorax, with
more abruptly tubulate apex in riparia.

Tudenia n. gen.

The mandibles here differ very much from those of the preceding
genus in being widely overlapping or decussate, and the left, at
any rate, has within a very long acute and conspicuous tooth.
The beak is moderately thick, rather short and closely sculptured,
with smooth median line above toward base, and it is separated
from the head by only a feeble impression. The antenne are
medial, rather short, the first funicular joint longer than the two
following, two to seven short, rather compactly joined and gradually
wider, the club, however, rather abrupt, unusually elongate-oval,
with evident sutures, and as long as the entire funicle. The
prosternum has a broad and shallowly concave channel and the
coxe are moderately separated. The femora are unarmed, strongly,
closely sculptured and slender, the tarsi shorter than the tibiz, with
moderately long, straight and slender claws, which appear to be
extremely approximate or contiguous, but perhaps not quite connate
at base. The prothorax is tubulate at apex, the scutellum small,

BRAZILIAN BARINZ 149

oblong and rather free, and the elytra are deeply grooved. The
type is the following:

Tudenia bicolorata n. sp.—Elongate-oval, convex, shining and glabrous, each
of the strong punctures of the under surface with a very minute squamule; color
deep black, the prothorax bright rufous; beak (o) evidently shorter than the
prothorax, moderately arcuate; prothorax a fourth or fifth wider than long, the
sides feebly converging and barely arcuate to somewhat beyond the middle, then
rounding to the distinctly and rather closely punctured tubulation, which is
nearly half as wide as the base; surface very finely, sparsely punctate, somewhat
more evidently toward the sides, also punctate along the basal margin; basal
lobe gradually formed, well developed and obtusely cuspidiform; scutellum
parallel, longer than wide, impressed along the middle; elytra about one-half
longer than wide, much wider than the prothorax and about twice as long, suboval,
rather obtusely rounded behind, the humeri somewhat distinctly prominent and
rounded; grooves rather coarse and deep, obscurely punctate; intervals flat,
with fine, confused and somewhat close-set punctulation; abdomen convex,
minutely, sparsely punctulate, with a narrow deep impression basally in the type.
Length 3.7 mm.; width 1.85 mm. Brazil (Chapada). October. One specimen.

The peculiar coloration and rather short, subcompressed beak,
are characters distinguishing this species from any of those pre-
viously described.

Thestonia n. gen.

The body in this genus is almost evenly oval and convex, sparsely,
evenly clothed above with very slender pale squamules, a little
less slender and denser throughout beneath. The beak is rather
thick, compressed and strongly sculptured, sparsely lineato-squam-
ulose, and separated from the head by the feeblest sort of impression.
The mandibles are arcuate and very strongly and sharply dentate
within, but do not seem to widely overlap when closed, they being
somewhat prominent. The antenne are medial and rather long.
The prosternum is very feebly impressed along the middle, the
coxee separated by somewhat less than half of their width, the
femora slightly inflated, minutely, loosely punctate and finely
squamulose, and the tarsal claws are moderate and straight, but
strongly connate through almost half theirlength. The thoracic
apex is not tubulate, and the scutellum is oblong and not in very
close contact with the surrounding surfaces, though not widely
free. The type is as follows:

Thestonia sparsa n. sp.—Elongate-oval, convex, black, the upper surface with
the feeblest subzeneous lustre and rather alutaceous; beak thick, as long asthe
head and prothorax, feebly arcuate, rather compressed, having coarse, longitu-
dinal ridges and moderate punctures, the upper surface subcariniform; antenne
piceous, the first funicular joint as long as the next three, the outer joints slightly
broadened, the club large, evenly oval, densely pubescent, subevenly segmented
by deep sutures and as long as the five preceding joints; prothorax two-fifths
wider than long, the sides distinctly converging and very feebly arcuate, becoming

150 MEMOIRS ON THE COLEOPTERA

very gradually a little more converging and barely more arcuate beyond about
the middle, the truncate apex three-sevenths as wide as the base; surface with
distinct but shallow, somewhat sparse punctures, bearing the slender pale whitish
squamule; basal lobe small, rapidly formed and with narrowly sinuate apex;
scutellum longer than wide, parallel and almost smooth; elytra one-half longer
than wide, very little wider than the prothorax and more than twice as long,
subevenly oval, with barely at all prominent humeri; striz narrow and groove-
like but shallow, very even, the flat intervals with moderate and sparse, confused
punctures, the squamule like those of the pronotum; abdomen slightly flattened
and less punctate or squamulose in the type. Length 3.3 mm.; width 1.7 mm.
Brazil (Entre Rios). September. One example.

There is no other described species with which this can be com-
pared very closely. The sex of the type is not definitely determi-
nable.

Parathestonia n. gen.

While resembling Thestonia in many of its general characters,
uniformly clothed surfaces, thick and strongly costulose beak,
feebly impressed prosternum and very moderately separated coxe,
strongly dentate but subprominent mandibles and strongly connate
tarsal claws, this genus should be regarded as different, because of
the structure of the antennal funicle, joints 2-4 being sube ual,
compactly joined and wider than long, while in Thestonia the
second joint is one-half longer than wide. The very thick beak
also has a peculiar form, being almost straight, but subcircularly
arcuate in about apical half, the antenne slightly behind the middle.
The third tarsal joint is larger and more dilated, and the much
larger prothorax is gradually but strongly tubulate at apex; the
legs are much longer. The scutellum and thoracic lobe have
nearly the same general structure, but the former is much broader.
The type is as follows:

Parathestonia obtecta n. sp.—Oblong-oval, convex, moderately shining, though
closely clothed with narrow ochraceous squamules, notably even in distribution
throughout the body and legs, somewhat less yellow on the under surface; color
piceous-black, with very feeble subeneous lustre, the legs long and rather bright
rufous; beak almost half as long as the body, very thick, slightly compressed,
somewhat closely lineato-squamulose, longitudinally costulose and punctulate,
separated from the glabrous and minutely, sparsely punctulate head by a very
faint impression; antenne obscure rufous, the first funicular joint as long as the
next four, the other joints herissate with suberect squamules and broader distally,
the club large, elongate-oval, subequally segmented by distinct sutures, not
abruptly formed and as long as the preceding six joints; prothorax large, nearly
a third wider than long, inflated basally, the sides arcuate, gradually subparallel
basally, strongly converging and less arcuate thence to the broad sinuses forming
the tubulation, which is nearly three-sevenths as wide as the base; surface with
moderate, very evenly close-set punctures and a narrow smooth median line;
basal lobe very small, gradually formed as a truncated cusp; scutellum sub-
glabrous, quadrate, with rounded angles; elytra one-half longer than wide, barely
at all wider than the prothorax and three-fourths longer, having the outline of

BRAZILIAN BARINZ I51

an elongate parabola; striz deep, grooved; intervals flat, with distinct and
close-set, confused punctures throughout; femora feebly inflated, rather finely
punctate; abdomen, in the type, with a feeble subglabrous basal concavity.
Length 4.0 mm.; width 2.0mm. Brazil (Santarem). One specimen.

On directly comparing obtecta with Thestonia sparsa, it is difficult
to associate them very closely in a generic sense, and yet many of
their structural characters are closely homologous.

Garnia n. gen.

We have here one of the most isolated type-forms in the present
series. The upper surface is glabrous, but medially beneath there
are plentiful minute glistening yellowish squamules. The beak is
slender and cylindric, but dilated at base, at least in the female,
the antenne at two-fifths, with the first funicular joint one-half
longer than the second, which is one-half longer than. wide and
pedunculate basally, the club thick, subtruncate basally, ogival
thence to tip, distinctly segmented and not quite as long as the
preceding four joints. The mandibles are peculiar, being quadrate
and broadly truncate, though coming together on a straight line;
the prosternum is broadly and shallowly channeled and punctate,
the channel sharply limited at the sides anteriorly, but becoming a
broad and nearly flat surface, rounded behind and slightly over-
hanging the mesosternum. The coxe are widely separated. The
femora are slender, parallel, polished, unarmed and finely, remotely
punctulate; the tarsi are also nearly glabrous, and the small slender
claws are subcontiguous almost throughout their length, but
whether actually connate or not is indeterminate at present. The
following is the type of Garnia:

Garnia militaris n. sp.—Rather stout, subevenly oval and strongly convex,
polished, black, the elytra each with a large red humeral spot in basal two-fifths,
extending more than half way to the suture, the humeral angle nubilously black;
beak ( 9 ) evenly arcuate, nearly three-fourths as long as the elytra, very slender and
cylindric, shining and sculptureless, rapidly thick, compressed and coarsely,
deeply sculptured in about basal third, separated from the head by only a feeble
depression; antennz black, glabrous and polished, the club minutely pubescent,
glabrous and polished on the obtuse base; prothorax large, a third wider than
long, the sides rather strongly converging and feebly arcuate, becoming gradually
more so beyond the middle to the gradual and moderate, punctate tubulation,
which is barely over a third as wide as the base; surface minutely, remotely
punctulate, the lobe strong, feebly sinuate medially at apex, with rather strong
lateral impressions, the scutellum well developed, subquadrate and transverse;
elytra oval, a fourth longer than wide, evidently wider than the prothorax and
fully three-fourths longer, striae moderate, deep and grooved, becoming fine and
distinctly punctulate on the red humeral regions; mesosternum and mes-epimera
with coarse and shallow punctures, the metasternum and met-episterna finely,
sparsely punctulate; abdomen convex, with rather small but strong, deep and
close-set punctures, very fine and dense on the fifth segment. Length 4.65 mm.;
width 2.9 mm. Brazil (Santarem). One female specimen.

152 MEMOIRS ON THE COLEOPTERA

The type of Garnia, as described above, is remarkable in many
directions, especially in the mandibles, antennz, prosternum and
tarsi, as well as in the peculiar striation of the elytra.

Andiblis n. gen.

A minute species, for which a special generic name is necessary,
is of narrowly suboval form and convex surface and has very
coarse sculpture, unarmed femora, strongly connate tarsal claws
and conspicuous vestiture. The beak is slender, thickened basally
and is nearly straight; the mandibles are straight within, not at
all decussate and prominent when closed, unequal in size, the
right much the shorter. The prosternum is shallowly channeled
and densely squamose, the coxe separated by nearly their own width
and the part behind the coxe is emarginately lobed over a part of
the mesosternum, the lobe rounded, longitudinally impressed and
very conspicuously squaamose. The antennz are subbasal, the first
funicular joint inflated and fully as long as the next two, the second
one-half longer than wide, the club large, evenly oval and as long
as the five preceding joints. The prothorax is not evidently
constricted at apex. The type is the following:

Andiblis seriata n. sp.—Suboval, convex, densely sculptured, only feebly
shining, black, the elytra and legs piceous; squamules slender, whitish, the coarse
pronotal punctures entirely including each a small one, those of the elytra a little
larger and arranged in very even single interstitial series; on the under surface
they are rather close but smaller, becoming larger, very dense and conspicuous
on the prosternum; beak but little longer than the prothorax, very slender,
smooth, rufous and glabrous in slightly more than apical half, thicker, black,
squamose and strongly sculptured thence to the base, which is not at all separated
from the upper surface of the head; antenne rather behind basal third, rufous;
prothorax a third wider than long, the sides moderately converging and nearly
straight, rounding and more converging in about apical third, the truncate apex
almost half as wide as the base; punctures even, coarse, deep and very close,
with traces of a narrow smoother median line; basal lobe very small, gradual and
cuspidiform, the scutellum small, somewhat sunken, rugose and quadrate, free;
elytra fully a third longer than wide, distinctly and rather abruptly wider than
the prothorax and twice as long, oval, somewhat narrowly rounded at tip; humeri
broadly, obtusely subangulate, not at all prominent laterally; striz very coarse
and deep; intervals barely twice as wide as the grooves and coarsely punctured
in single line; legs rather short; abdomen broadly, feebly impressed and slightly
less squamose medially toward base in the type, which, from the rostral character,
would seem to be a female; first suture very distinct throughout. Length 2.25
mm.; width 1.2 mm. Brazil (Chapada). March. One example.

Easily recognizable by the coarse sculpture, evenly lineate
squamules of the elytra and form of the beak and mandibles. It
is easily possible, of course, that the inequality of the mandibles
may simply be a deformation in the only known specimen.

BRAZILIAN BARINE 153

Ovanius n. gen.

Among most of the other genera of this group of minute species,
Ovanius may be recognized at once by the glabrous or subglabrous
body. The beak is moderately thick and short, arcuate and more
or less strongly sculptured, and is separated from the head by a
feeble reéntrant angle; the mandibles are strongly decussate and
obtusely rounded when closed. The antenne are submedial, short,
with relatively large, oval and deeply sutured club, the first funicular
joint about as long as the next three, the others gradually broader,
the club fully as long as the preceding six joints, the three segments
subequal in length. The prothorax varies in form, sometimes
gradually tubulate, but often not tubulate, at apex. The elytra
have rather strong groove-like striz, the femora are unarmed and
the tarsal claws are rather small, distinctly connate at base, or
sometimes more slender and apparently only very closely approxi-
mate. There are six distinct species among my material as follows:

Upper surface wholly glabrous... . 1.2... 0.6.0. e eee eee ee tees 2
Upper surface subglabrous, each strial interval with a regular single series of
very small and slender, widely separated squamules, whitish in color; body

ATIOL CRITIC eee. ear One Poe aes tie chelate ees Nuhttahe elutcne e arerels hota 5
2—Prothorax regularly conical in form, very obsoletely tubulate at apex....... 3
Prothorax much broader, with more arcuate sides anteriorly and a more distinctly

defineee cb WiOGma Dex: Nec eae eh aldeiee ee bee We thie aa ecwa es oo ss 4

3—Body black, rather evidently alutaceous, the prothorax obscure piceo-rufous;
beak scarcely as long as the prothorax, evenly and moderately arcuate and
rather thick, closely, moderately coarsely sculptured, the antenne medial,
rufous; prothorax only slightly wider than long, the sides scarcely at all
arcuate; apex a little less than half as wide as the base; surface with small
and sparse but strong and distinct punctures throughout, a rather wide
and well defined median line smooth and impunctate; basal lobe small,
gradual, truncate at apex; scutellum quadrate, smooth and flat, just visibly
longer than wide, with straight and parallel sides; elytra a fourth longer
than wide, distinctly wider than the prothorax and not quite twice as long,
oval, but more rapidly rounding and converging behind, the apex rather
strongly rounded; humeri very obtuse and but feebly prominent; striz
rather coarse, shallowly grooved and distinctly punctate, the intervals
nearly four times as wide as the grooves, flat and very minutely, feebly and
sparsely punctulate; under surface somewhat strongly, closely punctate, the
abdomen more finely and sparsely, the last segment still more finely and
very closely, the first suture very fine; sexual characters not apparent in
the type. Length 2.45 mm.; width 1.35 mm. Brazil (Chapada—forest).
October WOnerspecimen?. Soles io. koe melee ees ele ee eae conicicollis n. sp.
Body narrower, blackish-piceous, the legs more rufescent; prothorax rufous,
rather shorter, about a fifth wider than long, similarly conical, with very
feebly arcuate sides and with rather more evident truncate apical tubulation,
which is about half as wide as the base; punctures evidently finer and not
quite so sparse, but without the broad smooth median line of the preceding
species, the general surface shining and not alutaceous; basal lobe similar;
scutellum smaller, quadrate, slightly impressed; elytra rather more than a
fourth longer than wide, distinctly wider than the prothorax and about twice

154 MEMOIRS ON THE COLEOPTERA

as long, broadly suboval, the sides more rounding and converging posteriad,
and with rather narrowly rounded apex and feeble rounded humeri, as in the
preceding; surface alutaceous, the grooves more shallow, but somewhat more
distinctly though not closely punctate; intervals three to four times as wide
as the striz, flat, very minutely, remotely punctulate; under surface and
abdomen nearly as in the preceding, except that the latter is dull rufous
and not piceous-black, without definite sexual characters in the type.
Length 2.15 mm.; width 1.15 mm. Brazil (Chapada). On flowers in the
clearings. May. One specimen, which has lost its head. .rufulicollis n. sp.
4—Form more broadly oval, convex, strongly shining, black throughout; beak
moderately slender, evenly arcuate, strongly sculptured, slightly longer than
the head and prothorax, separated from the head by a rather deeper transverse
line; antennz slightly behind the middle, black, the club about as long as the
preceding four or five joints; prothorax fully two-fifths wider than long, the
moderately converging sides broadly arcuate, more rounded anteriorly to
the large tubulation, which is half as wide as the base; surface with strong
punctures, somewhat close laterally, finer and sparser medially, with a
smooth median line; basal lobe small, gradual, its apex narrowly sinuate
medially; scutellum larger, wider than long, smooth, feebly concave and
obtrapezoidal; elytra oval, a fourth longer than wide, distinctly wider than
the prothorax and twice as long, the humeri moderately prominent, rounded;
grooves sharply marked but shallow and conspicuously punctate; intervals
flat, three or four times as wide as the grooves and with extremely minute,
sparse punctulation; sterna with rather coarse but sparse and not very deep
punctures, the abdomen with moderate, sparse and extremely shallow
punctures, impressed medially at base and at the centre of the more densely
punctured fifth segment in the type. Length 2.8 mm.; width 1.5 mm.
Brazil (Santarem). One male specimen............... constrictulus n. sp.
5—Body and legs dark brownish-rufous throughout, the beak a little darker,
shining, having throughout minute sparse whitish squamule, rather more
evident beneath; beak rather thick, feebly arcuate, shining, strongly but
sparsely punctured, as long as the head and prothorax and distinctly sepa-
rated from the front; antenne submedial, nearly black, the first funicular
joint coronate and as long as the next three, the others compact, gradually
wider distally, the club oval, as long as the preceding five joints, with its
subequal segments not very densely puberulent and with their apices coro-
nate with a fine close fringe; prothorax nearly a third wider than long, the
sides moderately convergent and nearly straight, slightly rounding near
apical third to the moderately marked tubulation, which is half as wide as
the base; punctures rather strong and well separated, with a narrow, some-
what distinct smooth median line; basal lobe small, gradual, with its apex
narrowly truncate; scutellum small, narrow, very elongate-oval; elytra oval,
barely a fourth longer than wide, much wider than the prothorax and twice
as long, the humeri very slightly prominent and broadly rounded; apex
narrowly obtuse; grooves very shallow, with small and very distinct, well
separated punctures; intervals flat, nearly four times as wide as the grooves,
with extremely minute, sparse punctulation; under surface deeply, strongly
and closely punctate, a little less so on the abdomen, which is feebly and
basally impressed in the type. Length 1.8 mm.; width 1.0 mm. Brazil
(Santarem). One specimen—apparently male.............. piceolus n. sp.
Body and legs black; surface strongly shining, not alutaceous................ 6
6—Form rhombic-oval, convex, the upper surface almost glabrous, the strial
intervals with series of very minute, slender squamules, the latter not very
evident beneath; beak rather thick and moderately arcuate, longer than the
head and prothorax, with deep reéntrant angle at base, strongly and some-

BRAZILIAN BARINE 55°"

what closely but not very coarsely sculptured; antennz nearly as in the
preceding, but with the club rufescent; prothorax shorter, one-half wider
than long, the converging sides feebly arcuate, rounding anteriorly to the .
tubulation, which is half as wide as the base; punctures strong, moderately
close, a little less so medially, the smooth median line evident though not
very sharply defined; basal lobe small, narrowly sinuato-truncate at apex,
the scutellum small, elongate-oval as in the preceding, almost twice as long
as wide; elytra evenly oval, rather more than a fourth longer than wide,
evidently wider than the prothorax and distinctly more than twice as long;
humeri slightly prominent but broadly rounded; grooves very moderate,
with strong and very evident, well separated punctures, the intervals flat,
very minutely, sparsely punctulate; sterna strongly, closely punctate, the
abdomen finely, sparsely and very inconspicuously so, not modified basally
in the examples at hand. Length 1.85-2.1 mm.; width 0.85-0.9 mm.
Brazil (Santarem). Three female specimens......... rhomboidellus n. sp.
Form more oval, more obtuse behind, black, the whitish squamules of the upper
surface minute, very slender and sparse in single feebly marked line on the
intervals; beak rather strongly arcuate, strongly and closely sculptured and
as long as the head and prothorax (@), or a little shorter, thicker and not
quite so arcuate (co); antenne black, medial, of the usual structure; pro- °
thorax a fourth to third wider than long, the sides converging and barely
arcuate, gradually broadly rounding and a little more converging beyond the
middle, to the moderately marked tubulation, which is truncate and rather
more than half as wide as the base; punctures coarse, notably strong and
somewhat close, without definite median smooth line; basal lobe small,
gradual, obtusely rounded; scutellum small, oblong-oval, not one-half longer
than wide; elytra oval, barely a fourth longer than wide, rather distinctly
wider than the prothorax and more than twice as long, somewhat obtusely
rounded behind, the basally rounded humeri only very slightly prominent;
grooves moderate, not very shallow and not or very indistinctly punctate,
differing remarkably from the two preceding in this respect; intervals rather
less broad and with single series of very small, though more distinct punc-
tures; under surface strongly and closely punctate, the abdomen finely,
sparsely so and strongly shining; legs piceous; male with a moderate im-
pression at the base of the abdomen. Length 1.65-1.88 mm.; width 0.8—
0.88 mm. Brazil (Santarem). Five specimens............. parvus n. sp.

The species hold together very well, excepting constrictulus, and
it is possible that this may represent a closely allied genus, on
account of the broader and more shouldered prothorax and very
different form of the scutellum, also the decidedly larger size of
the body, but I do not feel disposed to suggest a generic separation
at present. In the form of the prothorax we find analogous dis-
crepancies in the genus Stethobaris. It is probable that this genus
is a rather large one in the neotropics.

Stethobaridia n. gen.

In this genus the body is almost evenly oval, convex and polished,
black, subglabrous, there being only a single interstitial line of very
small fine brownish squamules, generally with some others in the
series that are longer and white; each puncture of the under surface

156 MEMOIRS ON THE COLEOPTERA

and legs also bears a very slender whitish squamule. The beak is
rather slender, strongly arcuate as a rule and closely sculptured,
separated from the head by a rather deep sulcus, the mandibles
dentate and strongly decussate; the antenne are moderate and
somewhat behind the middle, the first funicular joint stouter and
as long as the next four joints combined, these being subequal, the
outer joints gradually broader, the club elongate-oval, strongly
segmented, gradually formed and fully as long as the preceding
five joints. The prosternum is only very faintly impressed, the
coxee moderately separated and having their inner part often in
the form of an elevated plate; this is sometimes invisible, however,
and I have been unable to discover its significance. The femora
are slender, strongly, closely punctate and wholly unarmed, and
the tarsal claws are well developed, straight and basally connate;
the prothorax is not very definitely tubulate and the scutellum is
small, flat and oblong. There are at hand the following three
species:

Beak notably long and strongly, evenly arcuate; sexual differences very slight,
not observable on the abdomen, where the first suture is strongly arcuate at

io oXem00t(0(6| | eee een Ne NN ER yp ete ee MeN Aire o Scale oan a pe 2
Beak less long or arcuate; abdomen of the male moderately Amapreseed at base,
thepfirst.suture lessiarcuatenmedialliyzemiaueneinceerenaenen skeet neta 2

2—Form rather broadly and very evenly oval, convex, deep eee and palicned
beak ( 2 ) slightly shorter than the elytra, very much more than half as long
the body, strongly, evenly arcuate, constricted at the head, densely sculp-
tured, a little more slender in about apical half; antennz rather slender,
black; prothoraxa third wider than long, the sides strongly converging, strongly
and very evenly arcuate from base to a very short and scarcely visible
apical constriction, the apex truncate and three-sevenths as wide as the base;
surface with coarse, deep and close-set punctures laterally, becoming small,
feeble and sparse medially and especially broadly toward base throughout;
basal lobe small, gradual, feebly sinuate at the middle of the apex; scutellum
flat, parallel, one-half longer than wide; elytra scarcely a fifth longer than
wide, only very slightly wider than the prothorax and two-thirds longer,
evenly elliptic, the humeral prominences virtually obsolete; grooves strong
and deep, feebly punctate along the bottom; intervals flat, each with a
single series of very fine and feeble, though rather close-set, punctures;
under surface somewhat coarsely and closely punctate, but less coarsely,
sparsely so over most of the abdomen. Length 2.6 mm.; width 1.4 mm.
Brazil (Chapada—forest). August. One specimen.......... ovulum n. sp.
Form evenly but somewhat more narrowly oval, smaller in size, similar in colora-
tion and lustre; beak strongly arcuate and strongly sculptured, in structure
nearly as in the preceding, almost as long as the elytra ( 9 ), evidently shorter
but otherwise scarcely differing (co); antenne nearly similar; prothorax
almost similar but somewhat shorter, about two-fifths wider than long, the
sculpture and basal lobe almost similar; elytra also very nearly similar,
except that they are three-fourths longer than the prothorax and with the
punctures of the single interstitial series a little coarser and more conspicuous;
abdomen with the punctures similarly loose but rather coarser than in
ovulum. Length 2.2-2.3 mm.; width 1.2-1.25 mm. Brazil (Chapada).
March. °_ "Two; Specimiens.t 7:14 ak acid ane cieeaee oeene reducta n. sp.

BRAZILIAN BARIN 157

3—Body slightly larger and more oblong-oval, deep black and shining; beak (<7)
rather thick and very moderately arcuate, about as long as fhe head and
prothorax, strongly sculptured, with deep reéntrant angle at base, the
longitudinal channel at the side beyond the antennz long, deep and con-
spicuous, the upper surface with many deep sulci apically; antenne nearly
as in the two preceding; prothorax two-fifths wider than long, the con-
verging sides rather strongly, subevenly arcuate from base to a somewhat
more evident apical constriction, the truncate apex almost half as wide as
the base; punctures strong and somewhat well separated, less coarse but
very conspicuous medially and basally, with a partial smooth median line;
basal lobe and scutellum almost similar; elytra evenly and obtusely elliptic,
a fourth longer than wide, very little wider than the prothorax and about
twice as long, the humeri but just visibly prominent; grooves sharply defined,
deep and feebly punctate along the bottom; intervals flat, with single series
of minute but distinct, less approximate punctures, the squamules more
regular and uniform, without admixture of longer and whiter ones posteriorly,
as in the two preceding: under surface strongly and closely punctate, less so
on the abdomen; legs rather short. Length 2.75 mm.; width 1.35 mm.
Brazil (Gantarem). One male example...-.-............-- separata n. sp.

In the oval outline of the body, these species are suggestive of
Stethobaris, but there is no real affinity in any way.

Roalius n. gen.

The single minute species forming the type of this genus, is
entirely exceptional in the present section of the tribe Centrinini,
in having the anterior coxe virtually contiguous and the femora
armed beneath with a small denticle, somewhat as in the Diastethus
group of very much larger glabrous forms. The body in Roalius
is plentifully clothed with squamules, the beak rather long and
slender, the mandibles deeply bifid, the inner tooth very acute, the
antenne long, slender and medial, with all the funicular joints more
or less elongate, the first two notably so and equal in length, but
with the first much inflated, the club oval, gradually pointed, with
somewhat feeble sutures, and about as long as the four preceding
joints. The prosternum is deeply sulcate, the channel abruptly
defined but densely squamose throughout, the femora feebly in-
flated, the tibiz evenly arcuate externally toward base, the tarsi
rather narrow, with the third joint but slightly inflated and the
claws small and basally connate. The prothorax is not tubulate
at apex, and the scutellum is well developed, somewhat rounded
behind, a little wider than long and densely squamose. The type
is as follows:

Roalius rufipes n. sp.—Somewhat narrowly subrhombic-oval, convex, piceous-
black, the legs rather long and rufous; beak (<7) not quite half as long as the
body, slender, evenly and moderately arcuate, sparsely sculptured, with a few
squamules at the sides basally, and not separated from the front by even a vestige
of impression; it is rather piceous in color, the long slender antenne pale rufous
throughout, the club not darker; prothorax a fourth wider than long, the moder-

158 MEMOIRS ON THE COLEOPTERA

ately converging sides feebly arcuate, more rounding and converging in about
apical third; apex less than half as wide as the base; surface with strong, close
punctures and slender, loose, evenly distributed pale gray squamules; basal
lobe wide but extremely short and broadly arcuate; elytra ogival, with narrowly
rounded tip, a fourth longer than wide, a fifth wider than the prothorax and
twice as long, the humeri slightly prominent; strie rather coarse and deep, not
punctate, the flat intervals with small and asperulate, loosely confused punctures
bearing slender squamules, nearly like those of the pronotum; under surface with
larger, paler and dense squamules; abdomen in the type with a strong rounded
impression at base, which is more finely and sparsely squamulose. Length 2.15
mm.; width 1.1 mm. Brazil (Chapada). March. One male specimen.

The more striking of the peculiarities of this species, are the
denticulate femora, large scutellum, slender antenne with elongate
funicular joints, and the contiguous anterior coxe.

Palocopsis n. gen.

Another minute species, resembling the preceding in some respects
but widely isolated structurally, forms the type of this genus.
The body is not so rhombic and is more densely clothed with large,
parallel, grayish scales. The beak is short, rather thick and feebly
arcuate, similarly not separated from the front by any kind of an
impression, the mandibles small, dentate and widely decussate,
the antenne notably short and inserted near apical third, the club
oval, moderate, the first funicular joint as long as the next two or
three combined. The prosternum is wholly unimpressed, except
by the deep constriction near and parallel to the anterior margin,
and the coxe are separated by fully a third of their width. The
femora are scarcely at all inflated and are without vestige of inferior
spicule, the third tarsal joint more dilated than in the preceding,
and the tarsal claws are rather small and closely connate basally.
The prothorax is not apically tubulate and the scutellum is very
small, narrow and squamose. The type is the following:

Palocopsis tecta n. sp.—Rather narrowly oblong-suboval, very evenly and
densely clothed with gray scales, which are somewhat smaller, whiter and more
evidently separated beneath; blackish in color, the legs and antennz rufous;
beak only as long as the prothorax, somewhat strongly and closely punctate
throughout and in great part squamulose; prothorax nearly a third wider than
long, only very feebly convex when viewed in lateral profile, the sides broadly
and distinctly arcuate, a little straighter and more parallel near the base; punc-
tures moderate but very close-set and even throughout, without trace of median
line; basal lobe very small and narrow, rounded; elytra obtusely oval, scarcely
a fourth longer than wide, very little wider than the prothorax and four-fifths
longer, obtusely rounded at apex, the humeri scarcely at all prominent; striz
rather fine but deep and distinct, the flat intervals with small and close-set,
confused punctures; abdomen in the type with smaller, sparser squamules
medially at base but not evidently impressed. Length 2.15 mm.; width 1.0
mm. Brazil (Chapada). March. One specimen.

BRAZILIAN BARINA 159

Distinguishable at once by the small size, oblong-suboval form,
coarse, dense squamules, short beak, with subapical antenne and
small, narrow scutellum.

Palocus n. gen.

In some respects the few small species of this genus resemble the
last, being rather evenly and densely clothed with pale gray scales,
but the body is more broadly oval, and the punctures of the elytral
strie bear each a distinct whitish squamule. The beak is moderate
in thickness and arcuation, densely sculptured and not separated
from the front, the mandibles decussate and dentate, apparently
somewhat prominent when closed. Antenne short, medial, the
first funicular joint as long as the next three, the others compactly
joined and gradually broader, the club oval, pointed and as long as
the five preceding joints combined. The prosternum is feebly and
indefinitely impressed, the anterior coxee separated by more than
half their width, the femora unarmed and the tarsal claws are
longer, less connate, straight but more divergent, and appear to be
connate only at the extreme base; they have a feeble substrigilate
sculpture. The prothorax is subtubulate at apex and the scutellum
is very moderate and quadrate, not densely punctulate or squamu-
lose. The species are as follows, there being two subgeneric groups:

Antennal club very stout, its first segment very large, constituting somewhat
more than half the mass; interstitial squamulation very even; squamules of
The Stele ep GEULeS ISEIMCE. 8) ..ih a yceg aie bhaiainl <b at 0)» @ seetnloletuait alae Rid bicials & ayes I
Antennal club more narrowly oval, subevenly trisegmented by the sutures, the
basal segment very much less than half the mass; interstitial squamulation
uneven; squamules of the strial punctures very minute and slender...... II

The anterior coxee in the second group are separated by almost
the full coxal width.

Group I
Subgenus Palocus in sp.
There are but two species of this group known thus far as follows:

Form rather stout, very evenly oval, convex, black, the legs not paler, the squam-
ules rather dense and even throughout; beak evenly, very moderately
arcuate, only slightly tapering, densely sculptured, somewhat longer than
the prothorax, the antenne medial, blackish; prothorax not quite a third
wider than long, the converging sides feebly arcuate, gradually rounding
beyond about the middle to the apical tubulation, which is half as wide as
the base; punctures very close; basal lobe small but rather abrupt, rounded;
scutellum quadrate, sparsely squamulose; elytra a fifth longer than wide,
slightly wider than the prothorax and three-fourths longer, the humeri
broadly rounded and only very faintly prominent; striz coarse but shallow,
punctate and squamulose; intervals closely, confusedly punctulate and

160 MEMOIRS ON THE COLEOPTERA

squamose; under surface with the squamules smaller, very even and slightly
separated, a little larger and dense on the prosternum; first abdominal
suture fine, rather strongly arcuate at the middle. Length 2.25 mm.; width
1.25 mm. Brazil (Chapada—forest). August. One female example.
nescius n. sp.
Form narrower and more elongate-oval, similar in coloration, the narrowly
squamiform vestiture not quite so dense or conspicuous, more narrowly
aggregated on the strial intervals, the squamules of the strial punctures
finer and more widely isolated; beak (2) as in the preceding, only moder-
ately slender and as long as the head and prothorax, or () distinctly thicker,
not quite so arcuate and as long as the prothorax; antennz nearly similar;
prothorax similar but somewhat shorter, the tubulation half as wide as the
base (07), a little wider (9); basal lobe similar but even a little smaller;
scutellum slightly smaller; elytra less obtusely oval and fully a fourth longer
than wide; form and relative proportion nearly as in the preceding; abdomen
very finely squamulose, without any obvious sexual modification. Length
2.0-2.15 mm.; width 1.0-1.15 mm. Brazil (Chapada). May and October.
Two: SPECMIMCHS a7 ro 2 cic eens cls <2 arm ee LIER Cee seriatellus n. sp.

The latter may be distinguished easily from nescius, though
closely allied, by its smaller size, narrower form and looser vestiture.

Group II

Subgenus Pseudopalocus nov.

The single known species may be identified by the following
characters:

Body narrowly suboval, a little less regularly oval than in the two preceding,
the elytra being more evidently wider than the prothorax, similarly black
and closely clothed throughout, but with the squamules of the pronotum
more uneven in distribution, being dense in lateral fourth and along a fine
median line, elsewhere finer and sparser, the similarly quadrate scutellum
much more convex and more nearly glabrous, having only very minute
sparse squamules, the elytra with much less regular interstitial squamules,
these being in single line on some intervals and doubled on parts of others;
beak in the type distinctly and evenly arcuate, rather thick, strongly, densely
sculptured and fully as long as the prothorax, the antenne blackish and
medial; prothorax of different outline, about a fifth wider than long, the
moderately converging sides almost straight nearly to apical fourth, there
rapidly rounding to the truncate tubulation, which is almost four-sevenths
as wide as the base; punctures strong and dense throughout; basal lobe
similar; elytra oval, rather narrowly rounded at apex, a fourth longer than
wide and three-fourths longer than the prothorax, the humeri broadly
rounded and not evidently prominent; striz rather coarse, moderately deep;
intervals varying in width; abdomen finely, closely squamulose, the pro-
sternum flat. Length 2.1 mm.; width1.1 mm. Brazil (Chapada). March.
A single example—probably male..................0...-. inzequalis n. sp.

It is probable that all these species inhabit flowers in clearings;
they do not seem to be at all common, but the genus is without
much doubt more widely diffused than might be inferred from the
single locality here recorded.

BRAZILIAN BARINA 161

Micropalocus n. gen.

The body here is more narrowly oval and less closely clothed
than in the three preceding Palocus-like generic groups, the squam-
ules usually being in single line on the strial intervals, and they are
among the smallest known members of the tribe Centrinini, having
also, I think, some alliance with the Zygobarid series. They are
probably found on flowers in clearings, or on the campo, as in the
preceding genera. The beak is rather thick, separated from the
head by a very fine and feeble transverse impressed line, somewhat
strongly and closely sculptured and, apically on the upper surface, is
usually feebly carinate; the mandibles are bifid and moderately
decussate; antenne short, submedial, with very short funicle, the
outer joints increasing in width and closely joined, the first as long as
the next three, the club unusually large, elongate-oval, subequally tri-
sected by the sutures and usually as long as the entire funicle. The
femora are mutic, the tarsal claws slender, connate at base, the
prosternum feebly impressed and the anterior coxe well separated.
The prothorax is not tubulate at apex, and the scutellum is very
small, quadrate and glabrous; the punctures of the elytral striz
are nude. The five species in my collection may be distinguished
as follows:

Pronotal punctures coarse, deep, separated by their own diameters or less... . .2
Pronotal punctures less coarse and especially shallower, separated by more than
EMCO MMIEGIAMELENS! 1) © esa it ncn cyelh bette hs Maas uv dtls Midge shes SUS 3

2—Legs black. Body almost evenly elongate-oval, convex, black, somewhat
shining, the squamules very fine, white, rather sparse, evenly distributed on
the pronotum, forming even single lines on the strial intervals, sparse beneath,
finer on the legs; beak thick, arcuate, compressed and closely sculptured,
about as long as the head and prothorax, apparently differing but little
sexually; prothorax nearly a third wider than long, the sides very moderately
converging, almost straight, gradually a little more rounded, though scarcely
at all constricted, apically, the apex slightly more than half as wide as the
base; basal lobe short, broadly rounded; elytra oval, a fourth longer than
wide, evidently somewhat wider than the prothorax and not quite twice as
long, the striz strong and deep but not very coarse, the flat intervals each
with a single line of fine distinct punctures. Length 1.6-1.75 mm.; width
0.75-0.85 mm. Brazil (Santarem). Five specimens....... sparsellus n. sp.
Legs obscure rufous and distinctly more slender. Body smaller and narrower,
nearly similar in sculpture and vestiture, the beak shorter, scarcely longer
than the prothorax, the latter shorter, nearly two-fifths wider than long, the
sides more nearly parallel, rounding more abruptly and rapidly in about
apical third, the apex almost three-fifths as wide as the base; basal lobe not
quite so strong; elytra more narrowly oval, somewhat more than a fourth
longer than wide, more distinctly wider than the prothorax and scarcely
twice as long, the sculpture and vestiture nearly similar, except that the
white linear squamules are finer, less close and much less conspicuous.

Length 1.4 mm.; width 0.62 mm. Brazil (Santarem). One example.
indigens n. sp.

T. L. Casey, Mem. Col. X, Aug. 1922.

162 MEMOIRS ON THE COLEOPTERA

Legs pale and bright rufous. Body nearly as in sparsellus in size but decidedly
narrower and more elongate; beak short, strongly arcuate, closely squamu-
lose and as long as the head and prothorax, the antenne pale rufous; pro-
thorax nearly a third wider than long, the sides almost as in sparsellus, the
apex relatively somewhat wider, almost three-fifths as wide as the base;
basal lobe small, abrupt and rather narrowly rounded; elytra much narrower
and more elongate, nearly one-half longer than wide, evenly elongate-oval
and fully twice as long as the prothorax, the sides from the small and very
feebly prominent humeri longer and more feebly oblique to the base than in
the two preceding; sculpture and vestiture nearly similar. Length 1.6—1.65
mm.; width 0.65-0.85 mm. Brazil (Entre Rios). Two examples. The
female vsistoutermthankthemmales jeyarieue eee mansuetus n. sp.

3—Form narrow and elongate-oval, moderately shining, black, the legs black,
rather short; beak thick, strongly arcuate, closely sculptured and squamulose
and as long as the head and prothorax, the antenne rufous; prothorax a
third wider than long, the sides moderately converging and subevenly,
feebly arcuate throughout; basal lobe small, gradual, short and obtuse;
elytra three-sevenths longer than wide, elongate-oval, only very little wider
than the prothorax and fully twice as long, the sculpture and vestiture almost
as in the preceding species. Length 1.7-1.75 mm.; width 0.75-0.8 mm.
Brazil (Entre Rios). Three specimens.................. summissus n. sp.

Form more broadly oval and distinctly larger in size, black, but with the surface
lustre faintly zneous, the legs short, bright rufous; beak thick, shorter and
less arcuate than in the preceding and not as long as the head and prothorax,
the antenne rufous; prothorax fully two-fifths wider than long, the sides
more strongly converging and only very slightly, subevenly arcuate through-
out, the apex truncate as usual and four-sevenths as wide as the base, the basal
lobe narrower and more prominent, very small; elytra more broadly oval,
relatively more strongly rounded at tip, slightly wider than the prothorax
and about twice as long, the striz finer than usual, the flat intervals wider and
with the loose punctulation rather more confused. Length 1.9 mm.; width
0.9 mm. Brazil (Entre Rios). One specimen........... gravidulus n. sp.

The species are probably numerous, but seem to be closely allied
among themselves. The Entre Rios specimens were all taken in
September. ;

Starcus n. gen.

The type of this genus is a very small species of suboval outline
and extremely coarse sculpture, having long sparse slender white
squamules, arranged in single regular line on each strial interval.
The beak is rather slender and strongly sculptured, not separated
from the front by an impression, the mandibles prominent, straight
within, not at all decussate and when closed form an acute promi-
nent angle. The antennz are medial, with rather slender funicle, the
basal joint of which is as long as the next three, the others subequal
in length among themselves and closely joined, the outer gradually
a little wider, the club notably large, elongate-oval, with indistinct
sutures and about as long as the entire funicle, somewhat as in
the preceding genus. The anterior coxee are small, separated by
very nearly their own width, the prosternum feebly channeled, the

BRAZILIAN BARINE 163

femora mutic and the tibiae evenly rounded externally toward
base, The prothorax is not tubulate at apex and the scutellum is
small, quadrate, uneven in surface and glabrous.

In regard to the single tarsal claw mentioned in the generic
table of the tribe, there may be some doubt. The unique type
specimen has only one complete tarsus. The claw-joint of this
tarsus bears a single rather long and slender, arcuate claw, but
whether there was originally a second similar claw, the two being
free and divergent as in the next primary subdivision of the tribe,
it is impossible to state at present, and I can only say that, as there
has been some cause at work destructive to the tarsi of this specimen,
it is somewhat more than rationally conceivable that a second
claw may have existed. At any rate, the genus is widely isolated
in its general nature and habitus, and would be greatly out of
place among those with which it would have to be associated under
the primary characters of straight mandibles and free diverging
claws. The type may be described as follows:

Starcus rugulosus n. sp.—Oblong-suboval, moderately convex, feebly shining,
deep black throughout, the legs somewhat piceous, the antenne black; slender
white squamules above very evenly distributed, sparse on the pronotum and
suberect in the even single interstitial series, sparse beneath; beak (<7) slender,
moderately arcuate, strongly sculptured and as long as the prothorax, the latter
but little wider than long, the sides parallel in basal, gradually convergent in
about apical, half; apex half as wide as the base; surface very coarsely, densely
punctate, with faintly subprominent median line; elytra oval, rather narrowly
rounded behind, not a fifth longer than wide, very slightly wider than the protho-
rax and barely one-half longer, coarsely, deeply striate, the strial punctures feeble
and nude, the intervals but little wider than the striz, with single series of strong
and subasperate punctures, bearing the suberect squamules; interstitial surfaces
throughout above feebly micro-reticulate; abdomen feebly impressed and finely,
remotely squamulose basally in the type. Length 1.5 mm.; width 0.72 mm.
Brazil (Santarem). A single male example.

There is nothing known to me with which to compare this species
at all closely. Some features, such as size and antennal structure,
may possibly indicate some relationship with Micropalocus, but the
sculpture and mandibles are entirely different.

Neplaxa n. gen.

This is one of the most remarkable genera of the present tribe.
The body is stout, very convex, glabrous, ventricose, with thick
and subcylindric beak, having very broadly decussate mandibles.
The antenne are submedial, slender, the second funicular joint
very long and slightly curved distally, twice as long as the first
and as long as the succeeding four combined, the elongate-oval and
densely pubescent club subevenly divided by the moderate sutures
and as long as the preceding five joints. The anterior coxe are

164 MEMOIRS ON THE COLEOPTERA

very moderately separated, the prosternum short and nearly flat
before them, the femora long, parallel and armed beneath with a
small erect acute spine or tooth, both the femora and long slender
tibia smooth, polished and glabrous; the third tarsal joint is
broadly dilated and the claws are slender, free and widely diverging.
The basal thoracic lobe is obsolete and the scutellum is parabolic
and in close contact with the elytra; it is smooth but rather prom-
inently convex. The type may be described as follows:

Neplaxa illustris n. sp—Stout, suboval, very convex, polished, smooth and
glabrous throughout, dark, the elytra with strong violaceous, the legs, beak and
under surface with dark green or bluish, metallic lustre, the prothorax not at all
metallic, pale rufous throughout, with piceous tubulation; beak very feebly
arcuate, thick, as long as the head and prothorax, loosely punctate, strongly at
the sides, not separated from the head by an evident transverse impression, the
head finely, sparsely punctate, with notably convex eyes, which are separated by
barely more than half the width of the beak; there is a small deep puncture
between them; antennz long, slender and piceous; prothorax evenly and rather
strongly convex in lateral profile, a third wider than long, the sides somewhat
strongly rounded, less so and more parallel gradually toward base, the feeble and
gradually formed truncate apical tubulation at least four-sevenths as wide as the
base; surface impunctate and very smooth, the middle of the basal margin
moderately rounded, not evidently prominent; scutellum convex, a little longer
than wide, very smooth; elytra subevenly and obtusely oval, a fifth longer than
wide, fully a third wider than the prothorax and not quite twice as long; humeri
rapidly rounding to the base, but not laterally prominent; striz fine and sub-
obsolete, but with distinct and somewhat widely separated punctures; abdomen
smooth, broadly impressed basally in the type. Length 5.3 mm.; width 3.4
mm. A single specimen, taken somewhere in Brazil and sent to me by Desbro-
chers des Loges.

This species seems to be completely isolated, and there is none
other known to me with which it can be even remotely compared.
The mes-epimera ascend obliquely along the humeri, but in continua-
tion of the very even curve from the middle of the met-episterna to
the elytral base and they are not visible from a dorsal viewpoint.

- Valilius n. gen.

In this genus the body is in great part glabrous, sometimes with
sparse slender squamules throughout beneath, and often with larger,
and very slender, widely scattered white squamules on the elytra.
The beak is moderately slender, evenly arcuate, strongly sculptured _
and separated from the head by a distinct depression, simple in
picetpennis, but abruptly sulciform in the dispersus type. The an-
tenne are medial, the first funicular joint distinctly longer than
the next two, the club moderate, with the basal segment slightly
less (dispersus) to distinctly more (piceipennis) than half the mass.

The femora are mutic, the prosternun narrowly but in general
somewhat deeply grooved, the cox narrowly separated and, before

BRAZILIAN BARIN2 165

each in the male, having sometimes a rather short slender erect spine,
the two separated by the usual deep perforation. The species at
hand are four in number as follows:

Elytra with scattered slender white squamules..............20¢ecceceeeeeee 2
Elytra without trace of squamules, those of the under surface also almost wanting,
except along the middle of the prosternum; body more elongate in form.. .5
2—Body smaller in size; male apparently with small angular prominences on
LHe PLOSteC UME re ee ee rie see oy Qo hre ta” Aenea sa 2
Body larger and stouter; male with two short and slender prosternal spines.. 4
3—Form not very stout, suboval, black, shining, the prothorax piceous-black to
obscure rufous; beak much (¢) or but slightly (co) longer than the head
and prothorax, strongly, closely punctate and longitudinally subcostulate at
the sides, more finely punctured above; antenne rufo-piceous; prothorax a
third wider than long, the sides slightly converging and feebly arcuate,
rounding anteriorly to the deep and strongly sculptured constriction, the
tubulation four-sevenths as wide as the base; surface with very fine and
remote punctuation, excepting the very coarse sculpture in the apical con-
striction throughout the width, glabrous, with a few squamules on the tubu-
lation; basal lobe moderate but abruptly formed, truncate, having a few
larger punctures; scutellum as long as wide, rather free, strongly obtrape-
zoidal and glabrous; elytra a fourth longer than wide, parabolic, somewhat
narrowly rounded at tip, distinctly wider than the prothorax and three-
fourths longer, the humeri not prominent, oblique to the basal margin,
rounded and smooth; striae very coarse, abruptly and deeply grooved and
evidently punctate along the bottom; intervals flat, as wide as the grooves
to less than twice as wide, with single series of distinct but extremely remote
punctures bearing the squamules, a few of the latter also clustered at the
sides of the scutellum; under surface strongly, closely punctate, finely,
loosely squamulose and subalutaceous; male with a simple median impression
at the base of the abdomen. Length 2.6-3.0 mm.; width 1.4-1.7 mm.
Brazil (Chapada—forest). November. Three specimens. .dispersus n. sp.
Form stouter, but otherwise nearly similar in general proportion and coloration,
rather more polished, the squamules of the elytra longer, still more slender
and extremely remotely scattered, only very few in number on each elytron
and not clustered near the scutellum, the squamules of the under surface
still smaller and sparser than in dispersus; beak much thicker, arcuate,
densely sculptured and subopaque, much longer than the head and _pro-
thorax in the type, the antennz almost similar; prothorax also similar but
sightly longer, a little more arcuate at the sides and a fourth wider than
long; strongly sculptured tubulation only a little over half as wide as the
base, the lobe and scutellum nearly similar, the latter less strongly obtrape-
zoidal; elytra broader, not a fifth longer than wide, parabolic, much wider
and three-fourths longer than the prothorax; grooves much less coarse, deep,
the punctures along the bottom less evident; intervals two to three times as
wide as the grooves and almost impunctate. Length 3.5 mm.; width 2.0
mm. Brazil (Rio de Janeiro). November. One specimen...micans n. sp.
4—Outline broadly suboval, strongly convex, polished, deep black in color through-
out; beak compressed as usual, and having the sides coarsely, deeply
furrowed and with some punctures, all bearing very slender hair-like squam-
ules, moderately arcuate, distinctly longer than the head and prothorax and
but feebly tapering (co), or strongly arcuate and thinner, much reduced in
apical half, and more than half as long as the body (?); antennz slender,
rufo-piceous, the club somewhat smaller and the basal joint of the funicle

166 MEMOIRS ON THE COLEOPTERA

subequal to the next three; prothorax a third wider than long, the converging
sides feebly arcuate, rounding beyond the middle to the constriction, which
is much smoother and less punctate than in the two preceding, except laterad;
the tubulation is not quite half as wide as the base; surface impunctate;
basal lobe as in the preceding, with a few small punctures, the apex sinuato-
truncate; scutellum wider than long, more convex, strongly obtrapezoidal;
elytra parabolic, less than a fourth longer than wide, fully a third wider
than the prothorax and almost twice as long; humeri rapidly rounding to
the base; grooves coarse, very deep and nearly smooth; intervals twice as
wide as the grooves, with distinct but extremely remote punctures in single
line and bearing the remote and suberect white squamules, a few of which
are closer near the scutellum; under surface and legs with small and sparse,
slender white squamules; abdomen scarcely more than flattened medio-
basally in the male. Length 5.0-5.8 mm.; width 3.0-3.5 mm. Brazil
(Rio de Janeiro). October. Two specimens............... nasutus n. sp.
5—Body elongate, rhomboidal, smooth and polished throughout and black, the
elytra obscure rufous; beak moderately slender and evenly arcuate, sub-
equal in the sexes and not quite half as long as the body, convex at the sides,
but having two very coarse and obscurely punctured grooves, separated by
a smooth intermediate surface, the part beyond the antenne rather closely,
evenly punctate, the upper surface finely, sparsely so; antenne slightly ( 9 )
or much (o') beyond the middle, slender, piceous, the first funicular joint
nearly as long as the next three; prothorax a third (co) or two-fifths (2)
wider than long, the sides converging and broadly, subevenly arcuate from
base to the punctured constriction, the tubulation less punctured medially
and three-sevenths as wide as the base; surface minutely, feebly and _ re-
motely punctulate; basal lobe a little larger than in the preceding three
species but exactly similar in form, abrupt and with its apex sinuato-trun-
cate; scutellum rather wider than long, sinuate at apex, minutely punctulate
and strongly obtrapezoidal; elytra a third (co) or a fourth (@) longer than
wide, triangular, with arcuate sides and somewhat rapidly obtuse apex,
almost a third wider than the prothorax and distinctly more than twice as
long, the humeri evenly rounding to the base; grooves coarse, deep and
abrupt, nearly smooth; intervals not quite flat, twice as wide as the grooves
and with very minute sparse punctulation; under surface with coarse,
sparse punctures; abdomen (<’) with a large and abrupt, oval, punctulate
and setulose cavity through the middle of the first two segments, the pro-
sternal spines very short, erect. Length 4.7-6.3 mm.; width 2.5-3.6 mm.
Brazil (Chapada—campo). November. Five specimens..piceipennis n. sp.

The mandibles in this genus are arcuate and very deeply bifid,
but only moderately decussate, so that they are prominent when
closed. There is more than the usual intraspecific variation in the
size of the body in piceipennis.

Crostis n. gen.

The body in this genus is small and glabrous, the beak rather short
and thick, cylindric and very feebly, remotely punctulate, with
strongly decussate mandibles, and it is separated from the small
globular head by a deep angulate impression. The antenne are
evidently beyond the middle of the beak, the first funicular joint as
long as the next three or four, the others short, compactly joined and

BRAZILIAN BARINE 167

gradually wider, the club large, oval, with distinct sutures and
almost as long as the entire funicle. The prosternun has a large and
transversely oval, very deep, polished excavation, limited at each
side by strong longitudinal tumidity, and, on the outer side, these
tumidities are deeply excavated. The anterior coxe are moder-
ately separated. The legs are slender, the femora mutic and the
tarsi rather small and narrow, with the third joint but slightly
dilated. The prothorax is strongly and abruptly tubulate, the
scutellum small, quadrate, flat, emarginate behind and the upper
surface is but feebly convex; the inflexed flanks of the elytra are
abruptly defined by one of the numerous longitudinal carine. The
genus 1s without any near relative known to me and the type may
be described as follows:

Crostis subexplanata n. sp.—Depressed and subrhombic-oval, very smooth,
polished, glabrous and impunctate throughout above and rufo-piceous, the
under surface with distinct and remotely scattered nude punctures, the distinct
and rather close-set punctures of the legs alone bearing pale setiform squamules;
beak thick, smooth, one-half longer than the head and prothorax, distinctly
arcuate; prothorax small, nearly a third wider than long, the sides cariniform,
converging and straight to near apical fourth, there rounding for a short distance
to the tubulation, which is three-fifths as wide as the base; surface smooth,
broadly subexplanate laterally to the acute margins; basal lobe moderate, rather
rapidly formed and narrowly rounded; elytra a third longer than wide, a third
wider than the prothorax and two and one-half times as long, the sides only
feebly converging and nearly straight from the rounded humeri to the middle,
then more strongly converging and nearly straight to the rather narrow apex,
each elytron being narrowly and strongly rounded at tip; surface with somewhat
strong, smooth and impunctate strie; intervals carinate, the carina of each near
the outer edge of the interval, the lateral interval—along the acute line forming
the upper margin of the inflexed flanks—wider than the others and subexplanate.
Length 2.2 mm.; width 1.15 mm. Brazil (Santarem). One specimen of un-
determined sex.

The strongly lyrate elytra and acute explanate lateral margins of
both prothorax and elytra, are very striking characters of this
remarkable species.

Crostidia n. gen.

This genus resembles the preceding in a few features, but in
most respects is as completely isolated from any other. The body
is more convex, and the sides of the upper surface are obtusely
rounded in section as usual; the surfaces are almost completely
glabrous, the prothorax similarly tubulate and with the prosternal
excavation bounded externally by tumid ridges, which are excavated
on their outer sides, is also somewhat similar, but the beak is much
longer, thinner and punctured and the mandibles are straight,
prominent and non-decussate, having dentiform irregularity along
their inner margins near base; it is separated from the head by a

.

168 MEMOIRS ON THE COLEOPTERA |

deep angular impression. The antennez are much longer, inserted
very slightly behind the middle, the funicle slender, its first joint
as long as the next four, the second nearly twice as long as wide,
the club abrupt, large, oval, with distinct sutures and not quite as
long as the preceding six joints. The legs are notably long and very
slender, the femora mutic. The anterior coxe are rather widely
separated. The type is the following:

Crostidia tenuipes n. sp.—Elongate, subrhomboid, shining, although the entire
surface is feebly micro-reticulate, subglabrous, only the scutellum, legs, meta-
sternum and its side-pieces with more or less evident setiform squamules; entire
body and legs pale red-brown in color; beak rather slender and strongly, sub-
evenly arcuate, very feebly tapering and fully half as long as the body, cylindric
though narrower in distal half, the punctures at the sides not dense but distinct,
fine above; prothorax two-fifths wider than long, the sides subparallel, feebly
sinuate, faintly diverging at base, rapidly rounding and converging from slightly
beyond the middle to the very abrupt tubulation, which is a little more than
half as wide as the base; surface smooth, finely, strongly punctate on the sides
and down the inferior flanks; basal lobe gradual, obtusely cuspidiform; scutellum
moderate, squamulose, quadrate, sinuate behind; elytra’ fully one-half longer
than wide, a third wider than the prothorax and two and three-fourths times as
long, elongate-parabolic, the humeri distinctly prominent and obtusely sub-
angulate laterally, the apex conjointly somewhat narrowly rounded; striae deep,
smooth, moderately narrow and evenly grooved; intervals very even, flat, three
or four times as wide as the grooves, virtually smooth; under surface rather
finely punctate, the abdomen sparsely so. Length 2.85-3.0 mm.; width 1.35-
1.38 mm. Brazil (Santarem). Two specimens.

Easily recognizable by the glabrous surface, tubulate prothorax,
slender and strongly arcuate beak and long elytra, and, from the
preceding, by the prominent humeri, flat strial intervals, convex
and not deplanate sides of the body and longer beak and antenne.
The two genera might possibly form a subtribal group, but are not
more intimately related between themselves.

Megavallius n. gen.

This is a genus of large and conspicuous, in great part glabrous,
shining and feebly sculptured species, having in every instance a
small spot of dense pale scales on the fourth strial interspace, near
three-fifths from the base. The beak is moderately long, strongly
punctate but shining and distinctly arcuate, the mandibles arcuate
and bifid but not very broadly overlapping, so that they are prom-
inent when closed. The antennze are slender, loosely jointed and
medial, the first two funicular joints elongate, the second the shorter,
the club rather small and narrowly oval, abrupt, with the first
segment generally about half the mass. The anterior coxe are
separated by about half their width, the prosternum not at all
armed in the male, the femora barely at all inflated, strongly,
loosely punctate and mutic, the tibiae simple and the tarsi rather

BRAZILIAN BARINZ 169

strongly dilated and clothed with close brown to golden hairs.
The prothorax is more or less gradually subtubulate at apex, with
the basal lobe moderately long and abrupt, strongly rounded at
apex and usually with a feeble basal impression at each side. There
are four species in my collection as follows:

Prosternum flat, densely and uniformly clothed with long and subherissate,

yellowishisq tani Sateen meet Sater Par cOn sie, suativotesyat sas 9 toe. scans oseiese Ghee, so 2
Prosternum rather closely clothed, but feebly channeled, with a deeper excavation
UO AE G0) NAN eG nh ht iy cpt Ace hy gree EAT Cee ee a B

2—Form rhombic-oval, moderately convex, deep black throughout, the upper
surface glabrous, excepting the posterior elytral spot of dense whitish scales,
which is short and subquadrate; under surface glabrous, the prosternum,
mesosternum, mes-epimera and sides of the first two ventral segments
abruptly very densely clothed throughout with yellowish-white scales; beak
but slightly longer than the head and prothorax, strongly punctured, some-
what strongly arcuate and subequal (<”), or a little less arcuate, just visibly
longer, smoother and slightly reduced apically (9), separated from the head
by a very feeble impression; antennz piceous, the first funicular joint not
quite as long as the next two, the third one-half longer than wide; prothorax
slightly (co) or nearly a third (¢) wider than long, the converging sides
subevenly and distinctly arcuate to the feeble apical constriction, the tubu-
lation with distinct scattered punctures and three-sevenths as wide as the
base; surface minutely, remotely punctulate; scutellum rather large and
transversely suboval, narrower at base than at apex; elytra fully three-
sevenths longer than wide, parabolic, a third wider than the prothorax and
two and one-half times as long, the humeri slightly prominent and broadly
rounded; striz not very coarse but deep, groove-like and smooth, the wide
intervals with sparse and confused infinitesimal punctulation; under surface
with rather strong loose punctuation, the abdomen feebly impressed along
the base medially in the male, but otherwise unmodified. Length 7.3-8.8
mm.; width 3.9-4.8 mm. Brazil (Rio de Janeiro). October. Three speci-
one, Bas wor7eS ESal|haooncoaconspebooscauen: auritarsis Germ.
Form, color and sculpture nearly similar but more obtuse behind and much
smaller in size; spot of dense scales on the fourth interval very elongate,
between two and three times as long as wide; moderate sparse punctures of
the under surface not nude but bearing hair-like squamules, the prosternum,
mesosternum and mes-epimera densely squamose, and also the posterior end
of the met-episterna, the abdominal dense areas of the preceding wholly
wanting; beak nearly similar, a fourth (o) to two-fifths (9) longer than
the head and prothorax; antenne slender, piceous and rather longer; pro-
thorax relatively smaller but otherwise nearly similar, except that the sparse
punctulation is more distinct; scutellum smaller, obtrapezoidal and generally
less transverse; elytra nearly similar throughout, but a little shorter and
more obtusely rounded behind; male abdomen with a larger and more oval
median basal impression. Length 5.8-7.9 mm.; width 3.0-3.8 mm. Brazil
(Chapada—forest). November. Ten specimens.............. tritus n. sp.
3—Size, color and sculpture nearly as in auritarsis, but with rather shorter and
more obtusely rounded elytra; dense spot on the fourth interval oval, about
one-half longer than wide; prosternum only with moderately dense herissate
squamules along the sides of the depression, between the coxe and on the
posterior lobe; entire under surface devoid of dense areas of squamosity,
each of the rather coarse punctures, as also those of the femora, with a very
small, slender and inconspicuous squamule; tarsi densely, pallidly squamu-

170 MEMOIRS ON THE COLEOPTERA

lose as usual; beak (2) one-half longer than the head and prothorax, grad-
ually thicker basally, very coarsely punctate, finely so distally and dorsally;
antenne slender, piceous, almost as in the preceding; prothorax nearly a
third wider than long, as in the preceding species except that the apical
tubulation is somewhat more abruptly formed; surface minutely and remotely
punctulate; scutellum fully as long as wide, punctulate and obtrapezoidal;
elytra a third longer than wide, as in auritarsis, except that they are more
broadly and obtusely rounded behind and with less oblique sides, the deep
grooves also are much coarser, smooth and about a fourth as wide as the
intervals. Length 8.2 mm.; width 4.5 mm. Brazil (Rio de Janeiro).
November. ‘Onevexamplestcn. as .2 5268.00 ees ae eee magister n. sp.
Size very much smaller, the outline narrower, more oval and less rhombic, deep
black and polished throughout, except that the mes-epimera and met-
episterna are dull rufous; spot of dense whitish scales on the fourth interval
narrow and linear, generally notably elongate and not distorting the direction
of the adjacent strie; prosternum broadly, densely albido-squamose, sparsely
so in the shallow sulcus, which has a deep oval polished perforation at its
anterior end, the metasternum laterally, and also the met-episterna—in
anterior half, in great part densely squamose; sides of the posterior ventrals
also with a few pale scales, the under surface otherwise glabrous, the femora
finely, sparsely setulo-squamose; beak half as long as the body, a little
more (@), arcuate, much inflated and strongly, discretely punctate basally,
slender and nearly smooth distally, black, the first funicular joint as long as
the next three; prothorax larger than in any of the preceding, a fourth wider
than long, the rather strongly arcuate sides less curved basally, the distinct
tubulation half as wide as the base; surface smooth, with only sparse and
infinitesimal punctulation; scutellum quadrate, impressed, feebly obtrape-
zoidal; elytra two-fifths longer than wide, parabolic, with obtuse apex, only
a sixth wider than the prothorax and about twice as long, the humeri rounded,
prominent and longitudinally elevated; grooves moderate, deep and smooth;
abdomen (<) feebly impressed basally; femora rather finely, sparsely punc-
tate. Length 5.65-5.8 mm.; width 2.75-2.9 mm. Brazil (Santarem).
Eight Specimenisse.:2. See teee are ok oc Ae ee limatulus n. sp.

In all the species but the last, the fourth strial interspace is feebly
dilated around the posterior discal spot, the striae bordering the
spot being more or less curved.

Dealia n. gen.

In this genus the body is smaller, less convex and more oblong
than in the preceding, subglabrous and shining, the elytra each
with an elongate squamose spot on the second interval at base and
another, looser, on the fourth interval near apical fourth, the under
surface glabrous throughout. The beak is thick, glabrous, shining,
arcuate and evenly cylindric, separated from the head by a rather
deep impression, the mandibles almost as in the preceding genus,
the antennze medial and shorter, the funicle with more closely
compacted joints, gradually a little broader distally, the first joint
fully as long as the next three, the second barely longer than wide,
the club moderate, acutely conoidal and fully as long as the pre-
ceding four or five joints, subequally trisected by the sutures. The

BRAZILIAN BARINE Evil

prosternum is flat, constricted at apex and, in the male, bears two
rather long and slender, porrect processes, separated by a large,
elongate-oval, very deep excavation, the cox separated by fully
their own width. The femora are but feebly inflated, mutic and
finely, sparsely punctate, the tarsi very moderate, subglabrous
above. The prothorax is strongly but not abruptly tubulate at
apex, and the basal lobe is wholly obsolete, the scutellum flat,
quadrate, and the elytra somewhat undulated and grooved. The
three species at hand are the following:

Squamosity at the base of the second interval dense, whitish as usual, and com-

posed) ofesiendemmsamamiilesiceniya eas Site, cree tele neue) ebetelalsh aketre cleus tam metersivels 2
Squamosity at the base of the second interval not dense, consisting of only a few
veny Sparse slongvand! slender isquamiuless j2)2s 1c. ice le le) es ers 2 3

2—Body oblong-suboval, only moderately convex, shining, black and glabrous,
except as stated; beak (co) arcuate, cylindric, finely punctulate, evenly
cylindric and distinctly longer than the head and prothorax, the antennz
blackish, or (9) shorter than in the male and relatively somewhat thicker,
shorter than the head and prothorax, the latter (co) fully as long as wide,
with long and gradually formed tubulation, or (Q) a fifth wider than long,
with much shorter and more abruptly formed tubulation; sides subevenly
and distinctly arcuate, broadly subparallel basally, the tubulation a little
less than half as wide as the base; surface minutely, sparsely punctulate;
base broadly, subangularly arcuate; scutellum quadrate, very little shorter
than wide; elytra a third (<) or a fourth ( 9 ) longer than wide, subparabolic,
with rapidly obtuse apex, very little wider than the prothorax and barely
one-half (co) or about three-fifths (2) longer, the humeri broadly rounded
and but slightly prominent; grooves moderate, deep, smooth; intervals
nearly five times as wide as the grooves, finely and confusedly punctulate,
more distinctly externally; undulation of the surface distinct; under surface
finely, sparsely punctate, the abdomen convex, not modified sexually.
Length 5.2-5.7 mm.; width 2.35-2.48 mm. Brazil (Santarem). Two
SPCCINMEMGHee reer a ey os PP xctcnras oaekpena mane an veer sdomena sone eens oblongula n. sp.
Body larger but otherwise nearly similar; beak (Q) rather thick, cylindric and
arcuate, finely, sparsely punctate and distinctly shorter than the prothorax;
antenne piceous, the club conoidal; club fully as long as the preceding
five joints; prothorax as long as wide, the sides subparallel, broadly arcuate,
gradually more rounding and converging beyond about the middle to the
broadly concave constriction, the tubulation long and gradual, as in the
male of the preceding species, truncate, sparsely punctate and less than
half as wide as the base, which is as in the preceding; surface finely and
sparsely but somewhat less indistinctly punctulate; scutellum larger, quad-
rate, flat; elytra similar, except that the sides are not quite so oblique and
the apex more broadly obtuse, a little wider than the prothorax and scarcely
one-half longer, only a fifth longer than wide; grooves very slightly coarser;
intervals with slightly more distinct diffused punctulation, similarly flat but
becoming narrow and cariniform apically; under surface finely, sparsely
punctulate. Length 6.2 mm.; width 2.88 mm. Brazil (Chapada). Octo-
bers Onetemaletspecinieny. cA .re ieee be cms > «lata convexiventris n. sp.
3--Form oblong-suboval, very moderately convex above; beak (9) thick and
arcuate, evenly cylindric, finely, sparsely punctate and as long as the pro-
thorax, the antenne of the usual type; prothorax about as long as wide, in
form, punctuation and long gradual tubulation, nearly as in the preceding;

172 MEMOIRS ON THE COLEOPTERA

scutellum quadrate, flat, arcuate behind, and not truncate as in the preceding;
elytra narrower, a third longer than wide, oval, much less broadly obtuse at
apex and three-fifths longer than the prothorax, the grooves finer, only two-
thirds as wide as in convexiventris, the interstitial punctulation much less
obvious, subobsolete, feebly visible laterally; abdomen very convex, remotely
and infinitesimally punctulate. Length 5.0 mm.; width 2.2 mm. Brazil
(Chapada—forest). November. One female............. atropolita n. sp.

These species adhere closely to the norm of the genus. The
sexual characters in the form of the prothorax in oblongula, are
very remarkable if the sexes are truly identified, as now seems
evident, and are all the more singular when we consider that the
form of the anterior part of the prothorax in the female of atropolita
and convexiventris is almost exactly as in the male of oblongula,
and not at all as in the female of that species; perhaps there is
some mistake of identification, which the very scanty material will
not enable me to correct at present.

Stethobaropsis n. gen.

The general form of the very moderate body in this genus is oval,
somewhat as in Stethobaris, but beyond this there is little or no
affinity. The surface is subglabrous, shining, black, very moder-
ately sculptured, the elytra with fine, sparse, lineiform squamules,
generally dark in color; the rather strong punctures of the under
surface each has a minute and inconspicuous squamule. The beak
is moderately thick and arcuate, strongly sculptured, feebly tapering
and compressed and is subcariniform above, separated from the
head by a very feeble impression, the mandibles strongly dentate
but somewhat prominent when closed. Antenne slightly behind
the middle, the funicular joints compactly joined and gradually
broader, so that the last is about as broad as the club, the first as
long as the next three; the club is oval and moderate. The
prosternum is excavated anteriorly, the excavation gradually shal-
lower and finally lost before the coxe, which are rather widely
separated. The legs are moderately short, somewhat strongly,
closely sculptured, the femora mutic and the tarsal claws free and
divergent. The scutellum is small, flat, ogival and in rather close
contact asa rule. The four species at hand are as follows:

Basal lobe of the prothorax deeply sinuate medially at apex. Form oval, convex,
polished black throughout, nearly glabrous, the elytra with fine and sparse,
dark brown hair-like squamules, with a few paler at each side of the scutellum;
beak strongly, evenly arcuate, as long as the head and prothorax, slightly
tapering from base to apex and coarsely, strongly sculptured, less coarsely
and more discretely punctate above; prothorax two-fifths wider than long,
the sides rather strongly converging and strongly, subevenly arcuate from
base virtually to apex, there being only a very short and nearly obsolete
constriction, the truncate apex three-sevenths as wide as the base; surface

BRAZILIAN BARINE 173

with very moderate, sparse and impressed punctures, becoming closer and
somewhat strong at the sides, wholly glabrous, the basal lobe moderate;
scutellum small, flat, oval, scarcely so wide as long; elytra parabolic, a
fourth longer than wide, slightly wider than the prothorax and very nearly
twice as long, the humeri but slightly prominent, rounded; striz not very
coarse but deep, abrupt and groove-like, smooth; intervals flat, three or
four times as wide as the grooves and with fine and feeble, uniseriate or,
on the wider intervals, biseriate punctulation; abdomen strongly convex.
Length 3.1 mm.; width 1.72 mm. Brazil (Santarem). One specimen—
apparently female........ MT Aeris: Sitio Areata wees asphaltina n. sp.

evidently punctate only at the extreme sides. Body more elongate-oval
than in the preceding, deep black and polished; hair-like brown squamules
of the elytra uniform, finer and sparser than in asphaltina; beak (2 ) as long
as the head and prothorax, more arcuate and thicker basally, rather thin
distally, strongly sculptured but shining; prothorax larger than usual, a
third wider than long, the sides moderately converging and very feebly
arcuate, gradually more rounding and convergent beyond the middle, to
the truncate apex, the tubulation feebly marked; basal lobe somewhat
rapidly formed, rounded, with the middle of the apex narrowly truncate;
scutellum small, flat, ogival, closely fitted; elytra more than a fourth longer
than wide, parabolic but rather obtuse at apex, evidently wider than the
prothorax and about twice as long; humeri somewhat prominent, rounded;
grooves deep, the punctures in single series, strong and conspicuous on the
narrower outer intervals, finer and more confused on the broad second and
third; abdomen strongly convex, with moderate loose punctuation. Length
3.1 mm.; width 1.65 mm. Brazil (Entre Rios). September. A single

SPEC URINE Clare cepM epee As RE oat coe akc Welle nancy c ekabndpacy cio, =e) sh oie cocina nial vitrina n. sp.
Pronotum very finely and sparsely but more evidently punctulate and becoming
strongly punctate much more broadly toward the sides.............-.... B

3—Body smaller and narrower than in the preceding, elongate-oval, deep black
and polished, the fine dark squamules of the elytra even less evident; beak
as long as the head and prothorax, more gradually and feebly tapering and
more evenly arcuate than in vitrina, subsimilarly sculptured; prothorax
relatively smaller, two-fifths wider than long, with the converging sides from
base to apex much more evenly arcuate, the apex less evidently subtubulate
and relatively somewhat wider, being but little less than half as wide as the
base, the basal lobe somewhat shorter, more gradually formed and more
broadly truncate at apex; scutellum a little larger, oval; elytra a fourth
longer than wide, oval, only slightly wider than the prothorax and more than
twice as long, the humeri smaller and only very feebly prominent; grooves
and punctures almost similar, the first and second strie relatively finer,
shallower and indefinitely punctate; abdomen strongly, evenly convex and
loosely punctate. Length 2.65 mm.; width 1.4 mm. Brazil (Entre Rios).
September: (One\specimiensy.< 0.5 sl. t See ee ss ee: intermedia n. sp.
Body stouter than in any one of the three preceding, polished and deep black
throughout, more subrhombic-oval, convex, the fine dark squamiform hairs
of the elytra extremely sparse and indistinct, with a few, longer and paler
scattered along the base; beak strongly sculptured, as long as the head and
prothorax, rather thick basally, thinner and less arcuate distally; prothorax
almost one-half wider than long, the sides moderately converging and feebly
arcuate to about apical third, there rapidly rounding to the feeble constriction
and the truncate tubulation, which is slightly less than half as wide as the
base; fine punctures of the disk unusually remote but distinct; basal lobe

174 MEMOIRS ON THE COLEOPTERA

gradual, strongly, subevenly rounded at apex; scutellum differing from that
of the preceding species in being more free, parallel, truncate, slightly longer
than wide and feebly, longitudinally impressed; elytra scarcely a fifth
longer than wide, rapidly parabolic, with less broadly rounded apex than in
any of the preceding, a little wider than the prothorax and three-fourths
longer; grooves a little coarser, deep, smooth, the sutural finer and crenulate;
flat intervals with single rather uneven series of minute but evident punc-
tures; abdomen strongly, evenly convex, finely and loosely punctate. Length
2.8 mm.; width 1.7 mm. Brazil (Santarem). One example.

robustula n. sp.

The smooth convex abdomen in all four unique types of the
above species, would seem to indicate the female, and it seems
probable that the male is unknown. It is surmisable, however,
that in that sex the prosternum is wholly unarmed.

Dialomia n. gen.

This genus is allied to the last but has a more rhombiform outline
and somewhat more distinct sparse hair-like squamules, which are
of the same general nature and distribution. The beak is longer,
strongly arcuate, evenly subcylindric, with strong sculpture of
longitudinal furrows, bearing setulose punctures, and is separated
from the head by a deeper transverse impression. The mandibles
are strongly bifid and arcuate but only moderately decussate. The
antenne are barely visibly behind the middle, the funicular joints
closely joined, gradually wider and merging very evenly into the
outline of the club, which is rather small, about as long as the three
preceding joints and with its first segment fully half the mass;
the first funicular joint is as long as the next two, the second much
longer than in the preceding genus and at least one-half longer than
wide. The prosternum has a very deep and elongate-oval excava-
tion, becoming extinct at the line of the coxe, which are well
separated. The femora are mutic, the prothorax abruptly tubulate
at apex and the scutellum small and oblong, the elytra rather
coarsely grooved. The prosternum has a short erect spine before
each coxa in the male. The only two species known to me are the
following:

Form subrhomboid-oval, deep black, shining, the upper surface with slender
hair-like squamules, very remote and inconspicuous on the pronotum, longer
and more distinct but sparse and in single lines on the elytra, with a few
paler and more distinct basally; on the under surface each of the rather
coarse punctures bears a minute slender squamule; beak evenly, strongly
arcuate, moderately slender, fully half as long as the body; antennz piceous-
black; prothorax a little less (o’) or slightly more (@) than a third wider
than long, the sides converging and very feebly arcuate, rapidly rounding
apically to the tubulation, which is truncate and half as wide as the base;
surface with minute sparse punctulation, becoming rather close, strong
punctures toward the sides; basal lobe strong, with narrowly subtruncate

BRAZILIAN BARINZ 175

apex; scutellum small, oblong, smooth; elytra not quite a third longer than
wide, parabolic, distinctly wider than the prothorax and about twice as long,
the humeri slightly prominent, rounded; grooves somewhat coarse, deep;
intervals between two and three times as wide as the grooves, with single
series of strong and moderately distant punctures; abdomen finely, sparsely
punctate, notably convex, having a feeble longitudinal impression at base in
the male, the latter a little larger than the female. Length 3.5-4.0 mm.;
width 1.6-2.0 mm. Brazil (Santarem). Five specimens... ..gradata n. sp.
Form more oblong-oval, with rather larger and more quadrate prothorax; color-
ation, lustre and vestiture nearly similar, the pale squamules of the elytra
suturo-basally coarser and much more conspicuous, though sparse; beak (<”)
almost similar, rather slender, strongly arcuate and fully half as long as the
body; antenne longer and more slender, piceo-testacous, the second funicular
joint nearly twice as long as wide; prothorax a fourth wider than long, the
feebly converging sides slightly arcuate, gradually broadly, evenly rounding
beyond about the middle to the shorter and less well defined tubulation,
which is distinctly less than half as wide as the base; sculpture and basal
lobe nearly similar, except that the latter is shorter, with the apical truncature
broader; scutellum a little larger, more nearly as wide as long; elytra of
almost similar form and with the humeri slightly prominent, but scarcely
more than three-fourths longer than the prothorax, the grooves coarser, the
intervals with the strong punctures of the single interstitial lines much more
close-set; erect prosternal spines of the male a little longer and more curved,
the abdomen, however, almost without trace of basal impression, very
convex and moderately, loosely punctate. Length 3.8 mm.; width 2.1 mm.
Brazila(Santarem) sieausin gle mnalescysr -f-iees)s)ers cious <li ie) = discreta n. sp.

The larger and differently formed prothorax and closer inter-
stitial punctures, longer antennz and absence of abdominal impres-
sion of the male, will at once distinguish discreta from gradata;
the beak is somewhat longer in discreta. The canaliform excava-
tion of the prosternum is deeper and more foveiform anteriorly in
the male.

Eudialomia n. gen.

The body here is still more elongate in form, but with similar
black color, polished surface and peculiar scanty hair-like elytral
squamules. The beak is slender, evenly, rather strongly arcuate,
very feebly and evenly tapering, distinctly longitudinally sculptured
and punctured, shining and separated from the head by a distinct
depression. The mandibles are deeply bifid, arcuate and decussate.
The antenne are distinctly behind the middle, the funicle much
less compact and but little broader distally, so that the moderate
oval club is much more abruptly formed, the first and second joints
are more or less though always moderately elongate. The prothorax
is gradually produced at apex into a conspicuous tubulation, with
the basal lobe differing very much in the two species. The proster-
num is large, broad and flat, having a very small pit near the
apex, the coxze separated by much more than their own width.
The femora are mutic and the claw-joint of the tarsi is unusually

176 MEMOIRS ON THE COLEOPTERA

long, with long and conspicuous diverging claws. Only females
are known, so that I am unable to state whether or not there
may be antecoxal spines in the male; it seems probable, how-
ever, that these exist. The two species are as follows:

Body elongate-oval, shining, black, subglabrous, the slender squamules of the
elytra in general small and dark and in single line, a little paler on some of
the intervals posteriorly and coarser and whitish basally, especially toward
the scutellum; beak (?) about a third longer than the head and prothorax,
rufo-piceous, the first funicular joint nearly as long as the next three, the
second scarcely one-half longer than wide; prothorax almost as long as wide,
the sides moderately converging, broadly, subevenly arcuate from base to
the gradually prolonged tubulation, which is truncate and fully half as wide
as the base; punctures minute and remote, gradually strong, close and
longitudinally rugulose laterally; basal lobe wanting, the edge simply feebly
and obtusely cuspidiform; scutellum well developed, quadrate, arcuate
behind, smooth and feebly concave; elytra one-half longer than wide,
distinctly wider than the prothorax and twice as long, elongate-parabolic,
but with somewhat obtuse apex, the humeri feebly prominent and rounded;
surface feebly undulated, the grooves deep and abrupt, not very coarse,
wider externally; intervals with single series of very small and inconspicuous
punctules; abdomen very convex, minutely, sparsely punctulate. Length
4.65 mm.; width 2.15 mm. Brazil (Santarem). One specimen.

longula n. sp.

Body not quite so elongate and with shorter and non-undulated elytra, similar
in coloration and lustre and with subsimilar scanty elytral vestiture, the
paler squamules basally not so large, numerous or evident; beak (2) not
quite so arcuate and rather more tapering from base to apex, subsimilarly
sculptured and a fourth longer than the head and prothorax; antenne
piceous, the second funicular joint relatively longer but not quite twice as
long as wide; prothorax slightly shorter than wide, the sides subparallel and
feebly arcuate in about basal, gradually rounding and converging in apical,
half, the gradually formed tubulation much shorter and less than half as
wide as the base; sculpture similar; basal lobe distinct, gradually formed,
with its apex narrowly sinuate at the middle; scutellum much smaller,
flat and exactly quadrate; elytra about a third longer than wide, more
rapidly parabolic, with less obtuse apex, only slightly wider than the pro-
thorax and but two-thirds longer; grooves nearly similar, the punctures of
the interstitial series rather more distinct; abdominal punctures much
coarser and closer. Length 3.8 mm.; width 1.75 mm. Brazil (Santarem).
Au SINGTe LetIale: ye ohare -n, test acs RRR saa cave opens remota n. sp.

There can be no doubt that the three preceding genera form a
well defined group, with a good many characters, such as elytral
vestiture, in common, but they are well distinguished among
themselves by special features, such as the broad flat prosternum
of Eudialomia, the shorter oval form and the basally inflated beak
of Stethobaropsis, and the more elongate, equally slender and arcuate °
beak throughout, with differently formed body in Dialomia. Most
of them occur in the Amazon Valley, and they do not seem to
occur in the higher regions of Matto Grosso. It is rather beyond
doubt that Eudialomia remota should constitute a subgeneric group

BRAZILIAN BARINE 177;

of Eudialomia, for which I would propose the name Dialomiaspis
(n. subgen.). The thoracic lobe, distinct in remota and altogether
wanting in longula, the type of Eudialomia, together with the undu-
lated elytra of Jongula and complete absence of this character in
remota, would seem to warrant this distinction.

Leptoladustes n. gen.

The body in this genus is elongate-oval, convex and very densely
sculptured, with a mixture of darker and pale squamules somewhat
loosely distributed. The beak is slender, evenly and feebly tapering
throughout, arcuate and strongly sculptured, separated from the
head by a moderate depression, the mandibles rather small, bifid
and decussate. The antenne are rather long and slender, medial,
the funicular joints loosely joined, not increasing much in width
distally, the first as long as the next two, the second not quite as
long as the succeeding two, although three times as long as wide,
the club very moderate, narrowly oval and as long as the four
preceding joints, with its first segment about half of the mass.
The prosternum is narrowly canaliculate and, in the male, has two
long slender porrect processes, separated by a very deep rounded
well, the coxe separated by nearly their own width. The legs are
rather long, the femora not distinctly inflated, mutic, the tibiae
very slender and the claw-joint of the tarsi not as long as the first
three joints, the claws long and widely diverging. The prothorax
is strongly tubulate at tip. The type is as follows:

Leptoladustes densus n. sp.—Elongate-oval, opaque, uniform piceous-brown
in color, with strong dense, longitudinally confluent pronotal, and dense confused,
irregular and not very deep interstitial, punctuation, the entire under surface
with dense but not very coarse punctures, each having a small hair-like squamule;
on the pronotum the yellowish and rather long squamules are sparse and unevenly
distributed, more visible at the sides; on the elytra they are widely scattered,
with condensation at each side of the scutellum and on the humeri, also less
marked on the second interval near the middle; beak very evenly but moderately
arcuate and fully half as long as the body; prothorax as long as wide, the parallel
sides broadly arcuate, gradually more rounding and converging beyond the
middle to the tubulation, which is truncate and three-sévenths as wide as the base;
basal lobe rather small, rounded, with a cluster of pale squamules, the median line
smooth and slightly tumid but not evidently cariniform, almost nude; scutellum
subquadrate, impressed and nude; elytra evenly ogival, with narrowly rounded
tip, only slightly wider than the prothorax and four-fifths longer, the humeri not
prominent, oblique to the base; striz somewhat coarse, deep, groove-like but
not very smooth, a third as wide as the intervals; abdomen strongly, evenly
convex, finely, very evenly punctulate and with small slender squamules through-
out, not in the least impressed at base in the male. Length 4.1 mm.; width
1.85 mm. Brazil (Rio de Janeiro). November. One specimen.

Readily recognizable by the narrowly oval form, dense sculpture,
T. L. Casey, Mem. Col. X, Aug. 1922.

178 MEMOIRS ON THE COLEOPTERA

slender beak, long slender porrect processes of the male and some-
what scanty uneven vestiture.

Ladustes n. gen.

This is a moderately large genus, agreeing with the preceding in
the density of sculpture and irregular disposition of the vestiture,
but it differs radically in the form of the beak and prosternum,
also in having no vestige of ante-coxal processes in the male.
The body is generally subrhombic-oval, the pronotum coarsely,
very densely punctate, with a smooth cariniform median line, and
the elytra are grooved and with strongly, very densely punctate
intervals. The beak is feebly arcuate, swollen and more squamu-
lose basally, strongly sculptured and with arcuate, bifid and moder-
ately decussate mandibles and is separated from the head by a
narrow deep sulciform impression. The antenne are rather long
and slender, with the first funicular joint long, exceeding the next
two combined, the loose outer joints as in the preceding genus, and
the club is small and oval. The prosternum is flat, densely squa-
mose and separates the coxe by a fourth to about half their width.
The femora are slightly inflated, mutic, and the tarsal claws are
not quite so developed as in the preceding genus. The eight
species at present in my collection are as follows:

Elytra with a condensation of pale scales at the base of the third interval, and
on the fourth in an elongate posterior spot, also often with the scales more or
less condensed/onitheinmner mtervalsapically- yee eae ee 2
Elytra with two sharply marked irregular fasciz of whitish scales on a black back-
ground, the posterior fascia consisting simply of a transverse discal spot on
each elytron, the elytral ground scales brown in nanulus................. 6
2—Elytra with slightly convex and subglabrous intervals, on which the rather
coarse, deep punctures are well separated among themselves. Form rhom-
boid-suboval, convex, deep black throughout, the pronotum with the long
ochreous squamules evenly but rather loosely distributed throughout; on the
elytra the ochreous spots at the base of the third interval and at three-fifths
on the fourth, are well defined but moderate in size, elsewhere the squamules
are sparse and very small, one to each of the strong punctures, a little coarser
apically; on the under surface the similarly ochreous squamules are close
throughout, but rather unevenly so; beak a fifth longer than the head and
prothorax, strongly inflated, coarsely sculptured and sparsely squamulose
basally, smoother and more cylindric distally; antennz obscure rufous;
prothorax two-fifths wider than long, the arcuate sides a little more rounded
apically and becoming more parallel basally, the somewhat abrupt tubula-
tion very nearly half as wide as the base; punctures very coarse, deep and
dense, the smooth and feeble median carina narrow; basal lobe very gradual,
narrowly rounded at apex; scutellum convex, nude, quadrate, rather wider
than long; elytra one-half longer than wide, parabolic, wider than the
prothorax and distinctly more than twice as long; grooves smooth, very
deep; abdomen, medially toward base, sparsely and finely squamulose but
not impressed in the type. Length 7.5 mm.; width 3.8 mm. Brazil (Rio
de Janeiro)., (October. Onetexanipless sess semilevis n. sp.

BRAZILIAN BARINZ 179

Elytra with flat intervals, which are coarsely, unevenly and more or less densely
PUN CtALC Sar Meemeee Mee ice gases eee sale st eames cacilae kanye mus SLebeous Tans orte 3
3—Form elongate-suboval, narrower and not at all rhombic. Pale whitish
squamules of the pronotum forming a lateral and discal loose vitta at each
side, on the elytra rather scattered but condensed apically and in a small
spot at base of the third interval and on the fourth near basal third, also in
a longer, more conspicuous spot at three-fifths; on the under surface dense
on the abdomen, but irregularly smaller and sparser throughout the sterna;
beak (co) barely longer than the head and prothorax, strongly sculptured,
only feebly tapering beyond the thicker basal part, with the antenne at
three-fifths, or (9) a little longer, relatively more inflated basally and much
more slender, smoother and tapering distally, with the antennz just beyond
the middle, the latter obscure rufous; prothorax about as long as wide (<"),
a little wider (9), the sides feebly arcuate, more rounding anteriorly, the
tubulation gradual and only feebly defined, half as wide as the base; punc-
tures coarse, deep, very dense and longitudinally confluent, the obtuse smooth
carina conspicuous, fine at apex; basal lobe nearly as in the preceding, the
scutellum narrower; elytra oval, three-sevenths longer than wide, nearly a
third wider than the prothorax and more than twice as long; grooves coarse,
deep; intervals with coarse and confused punctures, slightly separated;
male with the abdomen feebly flattened and slightly less coarsely and more
loosely squamulose at base. Length 5.4-5.6 mm.; width 2.35-2.75 mm.
Brazila(Santarem) si GhwOlspeGimMens.). .f06. acs easts oe carinulatus n. sp.
Porm! stouter ancevadently, sulochomiboidallys «sere ie ties oie oe a et = 4
4—Elytra with the condensations of pale yellowish scales arranged as in carinu-
latus. Body much larger in size, stouter and rhombic-oval, piceous-black,
not shining; slender squamules pale ochreous in four loose vitte on the
pronotum, on the elytra arranged much as in carinulatus, those of the under
surface paler, also similarly arranged; beak similarly rather closely squamu-
lose, inflated and coarsely sculptured basally, only feebly tapering distally
(co) and with the antenne at three-fifths, or much more slender, smoother
and more tapering distally, with the antenne slightly beyond the middle
(@), nearly similar in relative lengths and moderate curvature to the pre-
ceding species; antenne piceo-rufous; prothorax a fourth (<”) or two-fifths
(¢) wider than long, the sides subparallel, rounding beyond the middle to
the feebly defined tubulation, which is half as wide as the base (co), much
less (9); punctures coarse, very deep and dense, the smooth carina narrow,
strong and entire; basal lobe broad, short and very gradual, with the apex
narrowly and feebly sinuate; scutellum tumid, obtrapezoidal, somewhat
squamulose; elytra three-sevenths longer than wide, rather obtusely para-
bolic, a third wider than the prothorax and slightly more than twice as long,
the humeri not prominent but rapidly oblique to the base, rounded externally;
grooves coarse and very deep; intervals nearly flat, coarsely, deeply and
densely, confusedly punctate; male with the abdomen broadly and feebly
impressed and less squamose medio-basally; sutures strongly reflexed at the
sides as usual. Length 6.4-7.8 mm.; width 3.1-4.0mm._ Brazil (Santarem).
AG WOES PECIIMEMN Sr Pea hs pe tyees meee tel teavages shh e Shem oastduyaaeresaide insignis n. sp.
Elytra with the condensations of pale scales similar, except that the one on the
fourth interval, near basal third, is always wanting, and that the scales on
the inner intervals in apical third are much denser and more conspicuous;
body smaller in size and especially much more briefly rhomboid-suboval.. . 5
5—Body stout, rhomboidal, black, with the scales of the upper surface large,
dense and dark brown in color, sprinkled with some large whitish ones on
the pronotum and, on the elytra, condensed at the base of the third interval
and throughout apical two-fifths of the elytra, except on the lateral intervals

180 MEMOIRS ON THE COLEOPTERA

and on the third at apical sixth; elsewhere the pale scales are wanting;
on the under surface the coarse close punctures have small squamules, which
become large and close, whitish scales on most of the prosternum, over the
mes-epimera and on parts of the metasternum and abdomen; beak (<7)
almost evenly cylindrical, not inflated at base as in the preceding, and a
third longer than the head and prothorax, the piceous antenne at three-
fifths, the club shorter; prothorax a third wider than long, the converging
sides subevenly arcuate throughout, the very feebly differentiated tubulation
much less than half as wide as the base; punctures very coarse and dense,
the carinule nearly flat; basal lobe very broad, obtusely cuspidiform; scu-
tellum quadrate, pallidly squamulose; elytra only a fifth longer than wide,
parabolic, not a fourth wider than the prothorax and twice as long; grooves
coarse and deep; intervals strongly, very densely punctate, the brown scales
large and conspicuous; male with the abdomen rather deeply impressed and
abruptly subglabrous along the middle basally; prosternum flat, but some-
what sparsely squamose. Length 5.4 mm.; width 3.0 mm. Brazil (Cha-
pada—campo). October. One specimen............. breviusculus n. sp.
Body more narrowly subrhomboid-oval, nearly similar in color and vestiture,
except that the pale scales are more ochreous-yellow, form a more definite
loose central design on the pronotum and are more extensively sprinkled
among the dark brown scales of the elytra, the other elytral condensations
nearly similar, the under surface almost similar; beak (o) subsimilar or (@ )
very nearly as in the male, though somewhat longer, the antennze similarly
inserted in both sexes; prothorax nearly similar but slightly smaller and a
little narrower, coarsely, densely punctate, the median carina still feebler and
more indefinite; basal lobe and scutellum subsimilar; elytra narrower, more
than a fourth longer than wide, the general form and relationships almost as
in the preceding, the grooves not quite so coarse and the close confused
interstitial punctures a little smaller; male abdomen much more feebly
impressed but subglabrous along the middle basally. Length 4.2-4.8 mm.;
width 2.0-2.35 mm. Brazil (Chapada—campo). October. Three speci-
TMONS fye iets RUM ite Shera Sosa le pee ed a een re ae a ee stabilis n. sp.
6—Form more oblong, subrhomboid-oval, with more convex prothorax as seen
in profile, deep black, the dark scales throughout not brown as in the pre-
ceding species but black, the pale pronotal scales large and sparse, forming
a feeble submedial design and distinct antero-laterad; on the elytra nearly
white, the dense subbasal entire but irregular fascia with an offset on the third
interval, which attains the base, it also curves forward to the humeri at the
sides; at three-fifths there is a transversely quadrate spot on each, involving
intervals 3-5; on the under surface the large whitish scales are conspicuous
on the sterna medially, on most of the abdomen, on the mes-epimera and
anterior end of the met-episterna; beak (<”) three-sevenths as long as the
body, feebly inflated basally, moderately tapering, smoother and thinner
distally, or (2) distinctly more inflated toward base and relatively thinner,
smoother and more tapering distally, also relatively much shorter, being
only a little longer than the head and prothorax; antenne at three-fifths
(co) or four-sevenths (2), black; prothorax a third (o) or two-fifths (9?)
wider than long, the sides rather strongly, subevenly arcuate to the some-
what well marked tubulation, which is much less than half as wide as the
base in both sexes; punctures very coarse, deep, dense and confused; carina
smooth, distinct, broader basally; basal lobe short; scutellum obtrapezoidal,
very coarsely punctured, subglabrous; elytra a fourth longer than wide,
wider than the prothorax but distinctly less than twice as long, obtusely
rounded at apex, with feebly oblique and nearly straight sides; grooves
very moderate in width and depth, the intervals densely and confusedly

BRAZILIAN BARINZ 181

but only moderately coarsely punctate; abdomen (co) deeply impressed
and subglabrous medio-basally. Length 5.3-6.8 mm.; width 2.8-3.7 mm.
Brazil (Chapada—campo). December. Six specimens... .speciosus n. sp.
Form, color and vestiture subsimilar, but smaller in size and much more abbre-
viated; whitish scales of the under surface fewer at the middle of the sternal
sides; beak (co) not quite so long and relatively somewhat thicker; antennal
funicle gradually thicker and more compact distally, the club shorter and
more gradual in formation; prothorax relatively somewhat smaller but
otherwise almost similar; elytra shorter, more subquadrate, very obtuse
behind, the sides only just visibly oblique, only a fifth longer than wide,
more than a fourth wider than the prothorax, evidently less than twice as
long; male with the abdomen a little more broadly and shallowly impressed
medio-basally, the impression much more sparsely punctate. Length 4.8
mm.; width 2.5 mm. Brazil (Chapada—campo). December. One speci-
MCI seta A Me ea sine sciton na salu aa wis simulans n. sp.
Form, color and vestiture nearly as in speciosus, except that the size is very much
smaller and the outline narrower, the beak much less definitely dilated
basally and but little longer than the head and prothorax, the antennal club
narrower; prothorax smaller, the sides not so strongly arcuate, otherwise
nearly similar; elytra narrower, almost a third longer than wide, more
evenly parabolic, the apex less obtuse and more rounded even than in spe-
ciosus, more than twice as long as the prothorax, the grooves finer but more
distinct, owing to the fact that the dark scales are not black but dark brown;
abdomen (c’) with the medio-basal impression smaller and narrower than
in speciosus and much smaller and more indefinitely limited than in s¢mulans.
Length 3.8 mm.; width 1.8 mm. Brazil (Chapada—campo). October.
INV cine leme pe MMCrIoe eae cha eee arstale ate crete rag sy et ale ste ajels atest nanulus n. sp.

It is highly probable that some one or perhaps two of these
rather conspicuous species must have already been described, but
I can find no very definite records.

Saldiopsis n. gen.

Two very moderate rhombic-oval species, having coarse, dense
sculpture and sparse, somewhat uneven and partially herissate
vestiture, alone compose this genus as thus far known. The beak
is only moderately slender, separated from the head by a somewhat
fine deep sulcus, rather long, very arcuate, with coarse longitudinal
sulci at the sides basally, where the sparse herissate hair-like
squamules arise from the indefinite punctures of these irregular
grooves. The mandibles are moderate and falciform and the
antenne are inserted very slightly beyond the middle in both sexes,
the funicle loose, with the basal joint almost as long as the next
three, the outer joints not transverse and the club moderate and
evenly oval. The prosternum is flat, with a shallow elongate
glabrous fossa anteriad, the coxe separated by three-fourths, of
their own width, the femora not distinctly inflated and mutic and
the tibia unmodified. The prothorax is strongly and abruptly
tubulate at tip and the elytra extremely coarsely grooved. In the
male there are two long and slender, feebly oblique, apically de-

182 MEMOIRS ON THE COLEOPTERA

flexed, ante-coxal processes extending far beyond the head and separa-
ted by a large, transversely oval and very deep pit. The descrip-
tions follow:

Body stout and convex, rhombic-oval, dull from density of sculpture and some-
what piceous-black in color; setiform erect squamules of the pronotum dark
and sparse, with a few that are pale near the hind angles, those of the elytra
small and dark, irregular and sparse, with a loose series of longer bristling
pale squamules on parts of each interval; punctures of the more shining
under surface having very minute and barely visible squamules, longer and
more distinct on the legs; beak more than half as long as the body, evenly
and strongly arcuate (co), or more arcuate basally (2), with close longi-
tudinally sulciform sculpture and subcarinate upper surface in both sexes;
antenne rufopiceous; prothorax fully a fourth wider than long, the converging
sides broadly, feebly arcuate, rounding anteriorly to the truncate tubulation,
nearly half as wide as the base (@), less (co"); punctures coarse, very dense
and confluent, forming irregular longitudinal rugulosity, the median line
narrowly smooth and tumid; basal lobe gradual, short and obtuse; scutellum
well developed, free, glabrous and somewhat convex; elytra a fifth or sixth
longer than wide, rapidly parabolic, rather narrowly rounded at tip, much
wider than the prothorax and two-thirds (<) to four-fifths (@) longer;
pale loose yellowish squamules condensed medio-basally; grooves deep,
strongly punctured along the bottom; intervals barely at all wider than the
grooves and almost wholly occupied by a series of very coarse and confluent
punctures, generally sulciform; under surface closely but not so coarsely
punctate; male with the first ventral concave, smooth and polished at the
middle. Length 4.7-5.0 mm.; width 2.7-2.75 mm. Brazil (Rio de Janeiro).
December; TL woispecimensi init aaacce ees Se eit ee armata n. sp.

Body more narrowly rhombiform, piceous, feebly shining, the sculpture and
scanty vestiture nearly as in the preceding, except that the pallid squamules
are rather more numerous and, at the elytral base, are more concentrated in
a spot at each side of the scutellum; squamules of the under surface more
distinct, whitish; beak (c’) much more slender, similarly sculptured, very
strongly, evenly arcuate and almost three-fifths as long as the body; antenne
very obscure rufous; prothorax smaller and with much less arcuate sides
anteriorly than in armata, a fifth wider than long, the very abrupt tubula-
tion half as wide as the base in the male and relatively much wider than in
the same sex of armata; sculpture almost similar, but not quite so coarse,
the smooth tumid median line entire, not obliterated on the tubulation as in
the preceding; scutellum smaller but similar, except that it is evidently
impressed along the middle; elytra much narrower, fully a fourth longer than
wide, the oblique sides much less arcuate, the tip narrowly rounded, distinctly
wider than the prothorax and almost twice as long, the humeri very slightly
more prominent; sculpture nearly similar, except that the intervals are not
at all wider than the grooves, the close coarse punctures of the intervals
deeper and better defined; male with a smaller, feebler and narrower im-
pression at the middle of the first ventral, the prosternal spines subsimilar
and long, but somewhat more slender, rufous and not blackish, and not so
deflexed at apex. Length 3.8 mm.; width 1.85 mm. Brazil (Chapada).
November. One Speciments..., ae en oe one tee ete probata n. sp.

This is a very distinct and well characterized genus, properly of
the Centrinites series, but with peculiar mandibles and greatly
developed prosternal processes in the male.

BRAZILIAN BARINE 183

Pseudosaldius n. gen.

The single type of this genus resembles somewhat an elongate
Centrinaspis, but the mandibles are curved, somewhat falciform
and feebly decussate, though prominent when closed. The beak is
long, feebly and evenly tapering throughout, very strongly, evenly
arcuate and arising abruptly from the head, with deep reéntrant
angle; it is strongly, longitudinally sculptured, the median line of
the upper surface smooth and tumid. The antenne are medial
and rather slender, the funicle loose, with its first joint as long as
the next three, the second nearly twice as long as wide, the club
somewhat abrupt, elongate-oval and as long as the four preceding
joints. The prosternum is moderately impressed along the median
line, having in the male two moderate and gradually aciculate,
straight, erect processes, separated by the usual deep perforation,
the coxe approximate, separated by a fourth of their own width.
The legs are slender and with very even surface, the straight tibia
without trace of longitudinal fluting, and the tarsi are slender, the
widely divergent claws well developed. The type is as follows:

Pseudosaldius conjunctus n. sp.—Form narrowly rhomboid-suboval, black,
somewhat shining, the sides of the prothorax with fine separated yellowish
squamules, having a denuded space on the upper part of the inferior flanks, the
median line narrow and of similar loose squamules; elytra with confused and
small, dark brown squamules, with scattered lineiform squamules, more con-
centrated on the second interval basally and apically, and on the fourth in a
short line behind the middle; under surface of the hind body densely clothed
with uniform whiter squamules; prosternum with a herissate cluster at each
side of the median impression; beak with some fine sparse squamules basally,
distinctly more than half as long as the body, the antenne obscure testaceous;
prothorax barely a fourth wider than long, the sides moderately converging and
feebly, anteriorly gradually a little more, arcuate to the pronounced but not very
abrupt truncate tubulation, which is a little more than half as wide as the base;
punctures strong, dense, even and discrete throughout; basal lobe moderate,
gradual; scutellum quadrate, somewhat wider than long, coarsely punctate and
with a few minute squamules; elytra narrowly and evenly parabolic, a third
longer than wide, distinctly wider than the prothorax and not quite twice as
long; striz deep and grooved; intervals flat, about three times as wide as the
grooves, strongly, closely and confusedly punctate; abdomen (co) convex, with
a very feeble impression medio-basally only a little less conspicuously squamulose.
Length 3.6 mm; width 1.65 mm. Brazil (Santarem). One example.

If it were not for the mandibles, this species could be considered
a somewhat aberrant Centrinaspts.

Leptosaldius n. gen.

The body in this genus is of small size and usually rather sharply
rhomboidal outline, the pronotum longitudinally punctato-rugulose,
or sometimes almost completely smooth, the elytra strongly grooved
and punctate, the punctures usually bearing partial single lines of

184 MEMOIRS ON THE COLEOPTERA

slender white squamules. ‘The beak is strongly arcuate, rather
slender, strongly sculptured, not very abruptly separated from the
front and with the mandibles nearly as in the preceding—arcuate,
falciform, slightly decussate at apex, but prominent when closed.
The antenne are medial, the scape far from attaining the eye, the
first funicular joint as long as the next three, the second nearly
twice as long as wide, the club oval, well developed and usually
longer than the preceding five joints, somewhat abrupt in formation.
The prosternum is nearly flat ( 9 ), or longitudinally fossate between
the short erect ante-coxal spines (0), the legs rather long and slen-
der, the femora mutic, as usual in this part of the tribe. The
prothorax is conical, or with moderately arcuate sides, in the former
case often without, in the latter with, apical tubulation. The
species are somewhat numerous, those at hand being the following;

Prothorax almost evenly conical, with the sides straight or but very feebly
arcuate; antenne medial; elytra shorter and less narrowed posteriorly, the
slender white squamules in regular single lines, the lines however never quite
entire and sometimes short; male so far as noted always with two short
prostetnal’ spinesy-v Sash eo. en tee wie econ ih ete neyo noe eae 2

Prothorax broader, with more converging and anteriorly more arcuate sides, and
with tubulate apex; antenne beyond the middle; elytra more elongate and
more attenuated posteriorly, the white interstitial squamules widely isolated

in abbreviated series; prosternum of the male without ante-coxal spines.. . .8
2—Pronotum with longitudinal rugulosity throughout. ..................... 3
Pronotum with the ruge not extending to the base, sometimes with a large part

of the disk devoid of ruge and very smooth, polished................... 6
3—White squamules of the strial intervals close-set in even single line, the lines,

howeveranever ‘entire and often.short.. 4. /eee ete el eee eee 4

White interstitial squamules more widely separated; prothorax arcuate at the
sides and feebly tubulate, the tubulation less distinct than in the bullatus
SECEION a, I SREY sedg a ne eee Seis De ee

4—Form rhomboid-oval, black, feebly shining, less so (Q), the fine whitish
squamules sparsely scattered toward the sides of the prothorax and feebly
along the narrow median line, clustered slightly at base of the elytra, espe-
cially near the scutellum and in close-set interstitial lines behind the middle,
sometimes wanting latero-apically; on the under surface distinct, though
well separated, denser on the met-episterna; beak strongly arcuate, rather
longer and less stout in the male, with the piceous antenne medial as usual,
somewhat more than half as long as the body; prothorax conical, with only
very feebly arcuate sides, nearly as long as wide, with coarser rugulosity (<),
distinctly wider than long, less shining and with finer rugulosity (?), the
basal lobe small, feeble, obtusely cuspidiform; scutellum small, glabrous,
impressed and narrower than long; elytra a fourth longer than wide, wider
than the prothorax and nearly twice as long, less in the male; grooves coarse
and deep; intervals rather distinctly wider than the grooves, with single
series of somewhat strong, well separated punctures; male abdomen convex,
minutely, loosely squamulose, feebly impressed medio-basally, the prosternal
spines half as long as the tibia. Length 2.3-2.75 mm.; width 1.05-1.3
mm. Brazil (Chapada). On flowers in forest clearings. May and Novem-
ber,” Have specimens.< |. 205 eae hee re a ra ree caducus n. sp.

Form much narrower, elongate-suboval, black, with piceo-rufous elytra and legs,

BRAZILIAN BARINE 185

rather dull in lustre, vestiture nearly as in the preceding, the squamules
whitish as usual in the genus; beak (<) strongly arcuate, evenly cylindric
and more than half as long as the body; prothorax of the male evenly conical,
with nearly straight sides and almost as long as wide, much more finely
rugulose than in the same sex of caducus and nearly as in the female of that
species; scutellum small and quadrate, impressed medially behind; elytra
narrower, nearly a third longer than wide, distinctly wider than the pro-
thorax, less than twice as long;. grooves very coarse, punctate along the
bottom; intervals not very evidently wider than the grooves, with even
series of distinct, well separated punctures; abdomen of the male convex,
virtually unimpressed basally, the prosternal spines extremely short and
almost vestigial in the type; female a little stouter than the male, with
similar though basally subobsolete thoracic sculpture. Length 2.2-2.4 mm.;
width 0.85-1.05 mm. Brazil (Chapada). August. Two specimens.
sulcatulus n. sp.
5—Form nearly as in caducus but piceous-black; scanty vestiture similar; beak
(@) a little shorter and decidedly more arcuate, barely more than half as
long as the body, the piceous antenne almost similar; prothorax narrower,
only a little wider than long, with less converging sides and relatively broader
apex than in the female of caducus, where the apex is barely half as wide as
the base, here it is distinctly more than half as wide as the base; sculpture
and basal lobe similar; scutellum shorter, impressed; elytra subsimilar but
somewhat shorter, nearly twice as long as the prothorax in caducus, but here
evidently less; grooves coarse, deep and punctate; intervals similarly a
little wider than the grooves, with single lines of similarly distinct but more
widely separated punctures; under surface nearly similar, the legs evidently
shorter. Length 2.45 mm.; width 1.25 mm. Brazil (Santarem). One
FEMALE PS MSC Mey he. ae eae cara tder eit) drabeyeityclieualons se wistoushodeests Se rugicollis n. sp.
6—Pronotal ruge wanting only toward base. Form rather narrowly rhombic-
oval, black, rather shining, the slender setulae nearly as in caducus above
and beneath, but relatively somewhat less dense on the met-episterna; beak
() evenly cylindric, strongly and evenly arcuate, dull, closely sculptured
and sparsely, very finely squamulose, distinctly more than half as long as
the body; prothorax conical, with very feebly arcuate sides, the truncate
apex half as wide as the base; ruge coarse and shining, abruptly ending
near basal fourth; median line as usual, not differentiated; scutellum small,
emarginate behind; elytra parabolic, fully a fourth longer than wide, four-
fifths longer than the prothorax and distinctly wider; grooves very deep
and abrupt, punctured along the bottom; intervals rather distinctly wider
than the grooves, with single series of distinct but somewhat well separated
punctures; male with the basal abdominal impression narrow, very feeble
and almost obsolete, the prosternal spines slender, obscure testaceous and
a little more than half as long as the hind tibie. Length 2.55 mm.; width
1.2mm. Brazil (Chapada). March. One specimen....... clemens n. sp.
Pronotal rug wanting on most of the disk, evident laterally and anteriorly... .7
7—Body subrhombic-oval, shining, black, the squamules as in caducus but in
great part wanting on the pronotum, similar beneath; beak (<7) just
visibly tapering, strongly arcuate, barely more than half as long as the
body, the antennz slender and blackish; prothorax evenly conical, nearly
as long as wide, well developed; apex half as wide as the base; rug narrow,
shining, well separated; scutellum small, emarginate behind as usual; elytra
parabolic and as usual rather strongly rounded at tip, a fourth longer than
wide, slightly wider than the prothorax but, somewhat unusually, only
three-fourths longer; grooves coarse, deep and abrupt, strongly punctured
along the bottom; intervals evidently wider than the grooves and with

186 MEMOIRS ON THE COLEOPTERA

even single series of very distinct punctures; male with the abdomen convex,
shallowly and indefinitely though distinctly impressed medio-basally, the
prosternal spines more developed than usual, erect, rufous and about as long
as the hind tibiae. Length 3.0 mm.; width 1.35 mm. Brazil (Chapada).
November;:/ Oneispecimens.'j 24 2chG5).0 a cee eset levicollis n. sp.
Body smaller, narrower and rather less rhomboid, black, shining, the sparse
hair-like squamules nearly similar, as usual shorter, somewhat less slender,
more numerous and white beneath, and dense on the met-episterna; beak
(oc) nearly similar and very strongly arcuate, but relatively a little longer,
being distinctly over half as long as the body; antennz fuscous and evidently
shorter; prothorax subsimilar throughout, but not quite so nearly as long
as wide and with the apex more fully half as wide as the base; scutellum
smaller and narrower; elytra narrower and relatively longer, a third longer
than wide, narrowly parabolic, slightly wider than the prothorax and four-
fifths longer; grooves similar; intervals not quite so distinctly wider than
the grooves, and, in some cases, barely visibly so, the punctures of the single
series not so strong; male with the slender rufous ante-coxal spines about
three-fourths as long as the hind tibiz in the type, but, as usual, probably
variable in length. Length 2.65 mm.; width 1.2 mm. Brazil (Para),—

Baker, |:-One:specimeny:. sfs.cenodas onsen be wy ede aR castus n. sp.
8—Elytra moderately oblique at the sides and distinctly arcuate............. 9
Elytra more elongate, less oblique and but very feebly arcuate at the sides, more

narrowly. and strongly rounded:atiapexn.. wiac li due ees ie cee 10

g—Outline almost evenly oval, convex, black and shining, the sparse slender
squamules throughout of the caducus order, except being modified on the
elytra as stated; beak moderately slender, feebly tapering, strongly sculp-
tured, a third longer than the head and prothorax and more arcuate basally
than distally, the antenne piceous, slightly beyond the middle; prothorax
rather convex in lateral profile, fully two-fifths wider than long, the converg-
ing sides broadly, subevenly arcuate; tubulation more than half as wide as
the base; rugulosity nearly as in caducus; scutellum small, impressed along
the middle; elytra a third longer than wide, sharply parabolic, only slightly
wider than the prothorax and twice as long; grooves deep, about half as
wide as the intervals, the punctures of which are strong and in single loose
series; abdomen strongly convex, evenly punctate and with minute slender
squamules. Length 2.65 mm.; width 1.25 mm. Brazil (Santarem). One
female: specimie#nii ec eyas with: wh iss RR ae bullatus n. sp.
Outline somewhat broader and decidedly more rhomboid, the humeri being more
prominent though rounded; vestiture similar; beak (co) nearly as in bullatus
but a little longer and more evenly arcuate; antenne piceous, similarly
beyond the middle, the scape a little longer; prothorax almost two-fifths
wider than long, the converging sides less arcuate, nearly straight, rounding
anteriorly to the abrupt tubulation, which is distinctly more than half as
wide as the base and, as usual, less sculptured than the disk; rugulosity
similar; scutellum slightly larger, similarly obtrapezoidal and impressed
along the middle; elytra wider and rather longer, rapidly parabolic, a third
longer than wide, evidently more than twice as long as the prothorax; grooves
and intervals nearly similar, except that the punctures of the interstitial
series are less widely separated; male abdomen with a deep oval subglabrous
medio-basal impression, much more conspicuous than in the caducus section,
the prosternum evenly albido-squamose and unimpressed, the coxe very
narrowly separated as usual. Length 2.75-2.85 mm.; width 1.3-1.35 mm.
Brazil (Chapada). On flowers in clearings. May and November. Two
SPECIMENS: \. 5 eS he Se OO, ee ee ae adductus n. sp.
10—Body very elongate-subrhomboid, feebly shining, black; beak rather thicker

- BRAZILIAN BARIN4E 187

and decidedly shorter than usual in both sexes, only a little longer than the
head and prothorax and but moderately arcuate, the antenne somewhat
long, piceous; prothorax only a fourth (co) to nearly a third (9) wider
than long, the converging sides moderately and subevenly arcuate from base
to tubulation, which is distinctly more than half as wide as the base; ruge
nearly as in the other species, but with a distinctly differentiated convex
median line; scutellum rather well developed, longer than wide and longi-
tudinally impressed; elytra one-half longer than wide (<7), a little less (9),
slightly wider than the prothorax and more than twice as long, the oblique
sides only very feebly arcuate to the narrowly rounded apex; grooves deep
and abrupt, punctured along the bottom and somewhat over half as wide as
the intervals, the punctures of which, in single series, are distinct but well
separated; abdomen in the male having a small medio-basal concavity,
which is but little smoother. Length 2.8-2.9 mm.; width 1.25-1.3 mm.
Brazil (Chapada). May and June. Two specimens...... attenuatus n. sp.
Body stouter and with notably larger prothorax and less elongate and less atten-
uated elytra, black, somewhat shining; beak ( 9) rather strongly, subevenly
arcuate, only just visibly tapering, longer than in the preceding and much
longer than the head and prothorax, the latter fully two-fifths wider than
long, with the converging sides subevenly and rather strongly arcuate from
base to tubulation, which is not or but little more than half as wide as the
base; rugee and median line somewhat as in the preceding; scutellum almost
similar; elytra not quite so elongate and with the oblique sides just visibly
more arcuate, the apex very slightly more obtuse, the deep grooves but
little more than half as wide as the intervals, the punctures of which are
stronger and less widely separated in the series; vestiture of the under surface
as usual. Length 3.2 mm.; width 1.6mm. Brazil (Chapada). On flowers
iC leaniige me Via A. 6 Din engales....2)icc oa < ones a> Part @ Ss beens avidus n. sp.
Body shorter than in either of the two preceding and more shining, deep black
and rhomboid-oval, the beak ( 9 ) strongly arcuate, gradually less so, tapering
and thin to an unusual degree distally, almost half as long as the body, the
antenne slender, blackish and just beyond the middle, or (<) slightly
shorter and thicker and more evenly, though subequally arcuate, the anten-
nz subsimilar; prothorax two-fifths wider than long, the strongly converging
sides nearlystraight, rounding anteriorly to the pronounced tubulation, which
is a little more than half as wide as the base; ruge somewhat coarse and
shining, the median line not evidently differentiated, the scutellum rather
small, emarginate but scarcely at all impressed; elytra fully a third longer
than wide, distinctly wider than the prothorax and more than twice as long,
the oblique sides somewhat more arcuate than in the preceding, the apex
rather narrowly rounded, especially in the male; deep grooves fully half as
wide as the intervals, the punctures of which are strong but well separated
in the series; abdomen (<M) with a strong subtransverse subbasal concavity,
the anterior coxe separated by fully a third of their width. Length 2.5-2.8

mm.; width 1.1-1.4 mm. Brazil (Para),—Baker. Six specimens.
corvulus n. sp.

This is evidently one of the characteristic neotropical genera of
small Centrinini, and it invariably occurs, in all probability, in
flowers near forests. The two primary divisions of the genus as
indicated in the table are of a subgeneric nature.

The males in the second section of this genus have a small acute
tooth near the middle of the inner side of the anterior tibiz, but I

188 MEMOIRS ON THE COLEOPTERA

have failed to note this character in corvulus. It seems to be
wholly wanting in the first section.

Ternova n. gen.

In this genus the body is narrowly suboval and convex, with
partially glabrous surface, the beak long and very strongly arcuate,
especially toward base, slightly compressed, smooth above and
loosely and discretely but not coarsely punctate at the sides,
separated from the head by a feeble sulcus, the mandibles very
feebly overlapping, arcuate externally, slightly dentate internally
near the base and prominent when closed. Antenne medial,
slender, the first funicular joint nearly as long as the next three,
the second and third both somewhat elongate, the club moderate,
slightly abrupt and evenly oval. The prosternum has a deep
narrow elongate-oval glabrous excavation, the coxe separated by
barely more than a fourth of their width. The femora are not
inflated, simple, and the tarsal claws are thick, free and widely
diverging. The type and only known species is the following:

Ternova bipartita n. sp.—Narrowly suboval, deep black, the pronotum very
smooth, polished and glabrous, excepting a few pale squamules forming a regular
series along the base laterally, the elytra rather closely and evenly clothed with
dark brown squamules, a few whitish along the base and others forming a narrow
dense vitta along the suture; under surface with dense whitish scales throughout;
beak (o") slender, strongly arcuate and about as long as the elytra, the antenne
piceous; prothorax a fourth wider than long, the sides moderately converging,
broadly, subevenly arcuate to the abrupt and nearly smooth apical tubulation,
which is more than half as wide as the base, the latter with a fine acutely beaded
margin throughout the width, but thicker along the short obtuse median lobe;
surface with remote and infinitesimal punctules; scutellum slightly wider than
long, subglabrous, broadly emarginate at apex; elytra two-fifths longer than
wide, evidently wider than the prothorax and about twice as long, narrowly
parabolic, the sides from above feebly sinuate near apical fourth; humeri rounded
but somewhat prominent, glabrous and shining; strie deeply grooved, a third as
wide as the intervals, which are flat, somewhat strongly and unevenly punctate;
male with the abdomen rather deeply impressed and less squamose medio-basally,
the prosternum with an extremely short dentiform spine before each coxa. Length
3.4 mm.; width 1.6 mm. Brazil (Chapada—forest). October. One example.

Easily known by the peculiar vestiture, glabrous and basally
margined pronotum and by many other special features.

Linonotus Csy.

This genus was founded upon a species supposed to be from
Texas, which proves to have been very erroneously labeled and
really an inhabitant of the southern Brazilian coast regions, whence
I now have an ample series from Rio de Janeiro. The genus is
essentially of the South American tropics. The body is rhomboid-

BRAZILIAN BARINE 189

suboval, the beak long, thin, separated from the head by a rather
abrupt, deep and conspicuous sulcus, and with slightly dentate
mandibles, prominent when closed, the antenne slender, submedial,
with moderate narrowly oval club and notably elongate first
funicular joint. The prosternum is slightly excavated anteriorly,
and the cox are well separated, the femora unarmed and not
‘nflated and the tarsal claws free and widely diverging. The elytra
always have dense pale vestiture, sharply confined to one or two of
the discal strial intervals—three for a short distance medially in
volximi—the pronotum with dense oblique lateral pale vittee, and
the under surface is unequally clothed, the met-episterna and apical
part of the prosternum generally more densely. The genus includes
four groups as follows:

Elytra with the third and fourth intervals densely clothed with pale scales, at
least in part, the eighth and ninth, also, in longirostris; male with long
conspicuous, apically upturned ante-coxal processes, the beak very long,
slenderand'stronelyarcuates ic. .sgec. 8 alee sale eevee minnie so I

Elytra with intervals 2-4 densely clothed with pale scales in a little less than
median third of the length, the lateral pronotal vitte as in the preceding. . II

Elytra with only the fourth interval densely and pallidly squamose, but not
quite to the apex; beak very long; prosternum (%) with two very long
porrect ante-coxal processes, turned downward at apex; lateral pale pronotal
vitta more separated from the margin........--- +--+ sserer etree 1

Elytra similarly with only the fourth discal interspace densely and _pallidly
squamose and likewise not quite to the apex, but, in addition, with the
sutural interval also narrowly and less densely pallido-squamose; lateral
pronotal vitta also remote from the margin, though dilated to the latter at
base: beak not so long and less arcuate, the prosternum unarmed in the
Peeve Esra: ck, cnc, oce.layttee Giese EAD Ci SI Ocak ne et care NG Oa NOR crea a ae Re IV

I—Elytra with the eighth and ninth intervals densely pallido-squamose, in addition
to the third and fourth; beak extremely slender and arcuate and much
longer than the elytra in the female. Body very elongate, rhombic-oval,
moderately convex, all the pale scales above and beneath whitish, the dense
lateral pronotal vitte slightly separated from the sides, except at base, the
vitta of the third interval meeting the lateral double vitta at apex on each
elytron, that of the fourth interval slightly abbreviated near the apex; on
the under surface the pale scales are dense toward the sides almost throughout
and uniform, finer on the prosternum and with a large oval denuded lateral
space; beak as long as the elytra (3), almost as long as the body and very
slender (@), and strongly arcuate in both sexes but especially in the female;
antennz obscure rufous, very long and slender, the narrow club much shorter
than the first funicular joint, the second three times as long as wide; prothorax
one-half () to three-fifths (9) wider than long, the converging sides sub-
evenly arcuate to the tubulation, which is less than half as wide as the base;
punctures moderate and distinctly separated, almost nude, the impunctate
median line well defined, flat; basal lobe distinct, rounded, the scutellum
glabrous, subquadrate, sinuato-truncate; elytra one-half (<") to three-sevenths
(9) longer than wide, parabolic, wider than the prothorax and almost two
and one-half times as long; grooves deep, a third to fourth as wide as the
intervals, which are densely clothed with smaller dark brown scales; abdomen
(#) acutely impressed medio-basally, the prosternal processes long, evenly

190 MEMOIRS ON THE COLEOPTERA

and upwardly curved and separated by a large circular and extremely deep
excavation. Length 8.0-8.3 mm.; width 3.8-4.25 mm. Colombia. Two
specimens communicated by Desbrochers des Loges........ longirostris n. sp.
Elytra without trace of lateral pale vitte; beak very slender and arcuate as a
rule, but never exceeding the elytra in length; lateral pronotal vitta adjacent

toi orienvelopingrthetmarsinstits et et tan hectie che Oe © on oa eee 2
2—Larger species, the male prosternal spines long, except in curtulus, and turned
upwardsapically-m bealx veryastkonoly, arcuate. oiler eiae inten 3
Smaller species, always less than 4 mm. in length; beak much less arcuate and
not quite so long; male prosternal spines very short.................... if

3—Lateral pronotal vittz extending downward near the apex to the small pro-
sternal fossa. Form subrhombic-oval, rather strongly and very closely
punctured throughout; broad pronotal and the elytral vitte, also the met-
episterna, clothed with very dense pale ferruginous scales; remainder of the
surface with minute, sparse squamules, dark brown above and whitish
beneath; beak very slender, evenly and strongly arcuate, as long as the
elytra in both sexes, the antenne piceo-rufous; prothorax nearly one-half
wider than long, with converging arcuate sides and moderately tubulate
apex; median line broadly smooth and polished, nearly flat; scutellum
quadrate, smooth and polished; elytra rapidly parabolic, nearly a third
longer than wide, much wider than the prothorax and not quite two and
one-half times as long; grooves coarse and deep; intervals somewhat finely
and closely punctate; prosternal processes of the male only a little longer
than the prothorax, feebly and upwardly curved. Length 5.6-5.7 mm.;
width 2.9-3.1 mm. Brazil (Rio de Janeiro). November. Six specimens.
distinctus Boh.

Lateral pronotal vittze not extending downward at the sides apically.......... 4
4—Sides of the prothorax converging and subevenly, more or less strongly arcuate
from base to the pronounced tubulation; male prosternal spines long... ..5

Sides of the prothorax more parallel basally, more strongly rounding and con-
verging anteriorly to the tubulation, which is short and feeble; male pro-
sterniall'spinesiveryishort erect; oats eco pe ee Mae ee eae 6

5—Body subrhombic-oval, elongate, closely and strongly punctured throughout,
the dense lateral pronotal vitte reddish, the elytral vittea more whitish;
under surface with dense whitish scales, broadly toward the sides of the ab-
domen, on the lateral parts of the metasternum, except at the margins, through-
out the met-episterna and toward the upper end of the mes-epimera; small
close squamules of the upper surface dark brown, of the medial parts of the
abdomen fine and whitish, elsewhere almost glabrous; beak strongly, subevenly
arcuate, three-fourths as long as the elytra, slender and moderately punctate
distally, stouter and strongly sculptured basally, not at all gibbous at base
above, the head remarkably convex; prothorax scarcely a third wider than
long, the punctures strong, very deep and dense, virtually contiguous;
median line polished, nearly flat, subobsolete anteriorly; scutellum sub-
quadrate, sinuato-truncate and with a few small punctures; elytra a third
longer than wide, evenly parabolic behind, with somewhat prominent humeri,
much wider than the prothorax but scarcely more than twice as long, the
sides moderately oblique and in part nearly straight; grooves deep, about a
third as wide as the densely punctured intervals, the seventh and eighth
intervals narrower as usual, and with the punctures coarser and uniseriate;
abdomen (co) only flattened medially and strongly, densely punctate.
Length 5.8-6.0 mm.; width 3.0-3.2 mm. Brazil (Chapada—forest). No-
vemiber:,, ) Fwoyspecimens!; 44459206 sean ae Scene eee gratus n. sp.

Body slightly more abbreviated and with shorter prothorax, almost similar
throughout in sculpture and vestiture; beak still shorter and not quite so

BRAZILIAN BARINE IQI

arcuate, about two-thirds as long as the elytra, otherwise nearly similar,
except that the upper surface is slightly gibbous at base, the head not quite
so convex; antenne dark brown; prothorax fully two-fifths wider than long,
the sides somewhat more rounding anteriorly in the female than in the male;
punctures very dense but not quite so coarse, the smooth line obliterated
in about apical half; scutellum wider, deeply sinuato-truncate and with
closer, finer punctures, these wanting however at apex; elytra somewhat as
in the preceding but not quite so elongate and with the sides a little more
oblique and more arcuate, distinctly more than twice as long as the prothorax;
male with the punctures of the medio-basal and more finely squamulose
part of the abdomen much finer and less close-set than in gratus. Length
4.8-5.3 mm.; width 2.65-3.0 mm. Brazil (Chapada—forest). October and
Novemiberaamiireerspecimens?s \ 5.8. Bee aliases ie scitus n. sp.
Body shorter and relatively stouter than in either of the preceding, somewhat
shining, deep black, the tibiz and tarsi scarcely paler; sculpture and vestiture
throughout almost as in the two preceding, the latter whitish-yellow, except
that on the upper part of the mes-epimera there are only a very few slender
squamules, and that the pronotal punctures, though strong and close, are
narrowly but appreciably separated; beak almost similar and _ strongly,
evenly arcuate, but longer, about as long as the elytra, more inflated basally
and with the thicker part more compressed and more evenly, closely punc-
tured, not so longitudinally rugose, its upper surface evenly arcuate to the
basal sulcus and not appreciably gibbous, the head similarly very convex;
antenne dark brown; prothorax short, fully one-half wider than long, the
smooth and nearly flat median line continuing to the apex, though narrowed
and less definite apically; scutellum obtrapezoidal, deeply sinuato-truncate,
smooth and impunctate; elytra much shorter, a fourth to less than third
longer than wide, relatively less obtuse and more strongly rounded at tip,
twice as long as the prothorax (<7), distinctly more (9); grooves and general
sculpture nearly similar; male with the broadly, feebly impressed basal parts
of the abdomen very finely, loosely punctate, each puncture with a glistening
slender yellowish squamule, the prosternal processes similarly extending
beyond the body by almost the length of the prothorax. Length 5.7-5.75;
width 3.1-3.2 mm. Brazil (Rio de Janeiro). October to December. Three
SPEGUNEN SSE nie lols Mardis Siac n od dts lao save cenaeryes oe cribricollis n. sp.
6—Form stout, oblong-suboval, deep black, the sculpture and vestiture nearly
as in cribricollis; beak rather strongly, evenly arcuate, as long as the elytra,
almost as in the preceding but less compressed at the sides, not gibbous
above, the head strongly convex; antenne pale brown; prothorax two-fifths
wider than long, the strong punctures very narrowly separated, gradually a
little coarser toward the median smooth line, which does not quite attain
the apex; basal lobe as usual, emarginate at apex; scutellum subquadrate,
smooth, feebly obtrapezoidal, sinuate and with acute angles at apex; elytra
parabolic, with rather narrowly rounded apex, a fourth longer than wide,
barely twice as long as the prothorax, the sculpture nearly as in the preceding;
abdomen (co) barely flattened, finely, densely punctate and minutely
squamulose medio-basally; ante-coxal spines extremely short, erect, only
three-fourths as long as the width of the anterior femora. Length 4.7 mm.;
width 2.5 mm. Brazil (Rio de Janeiro). October. One specimen.
curtulus n. sp.
7—Form almost evenly suboval, deep black and feebly shining, the punctures
strong and dense almost throughout; ornamentation as in the preceding
species, except that there are one or two pale squamules at the base of the
sixth interval, and that beneath, the mes-epimera are nude, and that the
pale scales of the metasternum and sides of the first two ventrals are excep-

192 MEMOIRS ON THE COLEOPTERA

tionally dense and relatively rather larger in size; beak (2) three-fourths
as long as the elytra, only moderately arcuate and moderately dilated,
densely sculptured basally, gradually thin, shining and more finely, loosely
punctured distally, very feebly gibbous at the extreme base, the head strongly
convex as usual, the antenne piceous-black; prothorax not quite one-half
wider than long, the converging sides subevenly arcuate to the pronounced
tubulation, which is only a little less than half as wide as the base; punctures
very deep and strong, almost contiguous but not very coarse, the smooth
median line distinct and subentire; scutellum narrower than long, feebly
emarginate; elytra nearly a third longer than wide, evenly and obtusely
parabolic, much more than twice as long as the prothorax, the grooves and
general sculpture nearly as in the preceding; first ventral suture distinct,
subangularly arcuate at the middle; third and fourth segments glabrous,
except at the sides, the last three sutures moderately reflexed at the sides.
Length 3.8 mm.; width 2.1 mm. Brazil (Chapada). March. A single
femiale-speciniéns.25+5 5.5 Fe eee kes bl Be duplicatus n. sp.
Form, sculpture and vestiture nearly as in the last, except that the thoracic
tubulation is shorter and feebler, the pronotal punctures much coarser,
narrowly separated, the scutellum shorter, the third and fourth intervals
with similar dense and shining, yellowish scales, as in duplicatus, but also
with the second interval, from just behind the middle nearly to the apex,
and the fifth and sixth in short basal lines, similarly squamose; pale scales
throughout above a little less dense; on the under surface the scales of the
metasternum and sides of the first two ventrals are less conspicuously dense;
beak nearly similar throughout; convex abdomen (co) with a feeble obtuse
concavity along the middle basally, not clothed or punctured differently
from the rest of the surface, the prosternal spines very short, erect and
barely as long as the basal thickness of the beak. Length 3.7 mm.; width
2.0 mm. Brazil (Chapada). March. One male specimen..amcenus n. sp.
Form nearly as in duplicatus but narrower and much smaller, similar in color and
sculpture, except that the legs are more piceous, and also in ornamentation
above, except that the dense lines along the third and fourth intervals are
narrower and looser, amounting in fact to scarcely more than an uneven
double line of scales on each, and there are no isolated pale scales externally;
on the under surface the pale scales, in disposition and density, are not as
in duplicatus, but as in amenus, and the broad lateral vitta of the pronotum
is not rufous but white; beak similar; prothorax also as in duplicatus, except
that there is scarcely any tubulation at apex, this being strongly marked in
that species; the smooth scutellum is shorter, more truncate and more
impressed; elytra a little narrower, narrowly parabolic, much more than
twice as long as the prothorax. Length 2.85 mm.; width 1.45 mm. Brazil
(Chapada)i.ei\ Marchi) vAtsingle femalemrn iis... <a. weartienees tenellus n. sp.
II—Body subrhombic-oval, feebly shining, deep black throughout, the oblique
lateral pronotal vittee and the subquadrate elytral spots of dense scales
respectively feebly reddish and nearly white; whitish scales of the under
surface dense along the prosternum, on the metasternum and met-episterna,
toward the sides of the abdomen and, in more shaggy manner, along the
latter medio-basally, the prosternal dense area and the lateral pronotal
vittee almost meet at the sides apically; beak moderately arcuate, four-
fifths as long as the elytra, inflated, and above more arcuate, basally, slender,
flattened and less sculptured distally, the head very convex; antenne rather
behind the middle, slender, piceous; prothorax one-half wider than long, the
converging sides strongly, evenly arcuate to the short tubulation; punctures
moderately coarse, strong, dense, the smooth median line not distinct, the
scutellum smooth, slightly wider than long, sinuate at apex, with acute

BRAZILIAN BARIN 193

angles; elytra parabolic, a fourth longer than wide, evidently more than
twice as long as the prothorax; grooves deep, punctured along the bottom,
a fourth as wide as the flat, densely but not coarsely punctured intervals.
Length 4.6 mm.; width 2.6 mm. Brazil (Rio de Janeiro). November.
OneWemalerspecinientesy ae eee ecient te Acta volximi Pasc.
I1I—Form greatly elongated, rhombic-suboval, very moderately convex above,
strongly so beneath, black, feebly shining, deeply, though not very coarsely,
extremely densely punctured throughout above, more strongly and not quite
so densely so beneath, each puncture with a small squamule, dark brown
above, whitish beneath, the pronotum with an oblique lateral vitta, expanded
at base to the margin, the fourth strial interval not attaining the apex, and,
beneath, the entire met-episterna, all very densely clothed with bright red
scales; beak (co) evenly and strongly arcuate and as long as the elytra,
very evenly and feebly tapering throughout, strongly and densely punctate,
more finely apically, the upper surface with an even smooth line except
apically, separated from the head by a very feeble impression, or (9) very
much shorter, only very feebly arcuate, not very slender, more evenly cylin-
dric, slightly gibbous at base and scarcely more than three-fifths as long as
the elytra; antenne long, slender and piceous-black throughout in both
sexes; prothorax two-fifths wider than long, the converging sides evenly
arcuate to the moderately abrupt tubulation, two-fifths as wide as the base
(), three-sevenths (@); entire median line very abruptly defined, smooth
and nearly flat; basal lobe strong, sinuate; scutellum subquadrate, nearly
smooth, glabrous, sinuate behind, with acute angles; elytra one-half (0’)
or three-sevenths (9) longer than wide, elongate-parabolic, with rather
prominent rounded humeri, nearly two and one-half times as long as the
prothorax, the grooves moderate, not distinctly punctate, a fourth or fifth
as wide as the intervals; male with large feeble medio-basal abdominal
impression, the ante-coxal spines porrect, abruptly deflexed at apex and
two-thirds as long as the elytra. Length 8.5-9.0 mm.; width 4.3 mm.
Brazil. Two examples, from Desbrochers des Loges.......... regalis n. sp.
IV—Body subrhombic-oval, more convex than the preceding, black, rather
shining, the pronotum with a sublateral oblique vitta, not attaining the apex
and slightly expanded at base, of close-set elongate yellowish-red scales, also
some sparser narrower whiter squamules along the median line, obsolete
apically, the fourth strial interval with dense reddish-yellow scales in four-
fifths, the scutellum and entire suture narrowly clothed with sparser and
whiter squamules, the met-episterna and sides of the first two ventrals,
abruptly, also densely clothed with the reddish-yellow scales; punctures
throughout coarse and close, each with a small squamule—brown above,
whitish beneath and toward the sides of the elytra; beak feebly arcuate,
finely, loosely punctured throughout, three-fourths as long as the elytra and
rather rapidly thicker basally (Q), or a little shorter and more uniformly
thicker (co), gibbous at the basal sulcus in both sexes, the head strongly
convex; antenne blackish-piceous, inserted evidently behind the middle;
prothorax two-fifths wider than long, the converging sides evenly and rather
strongly arcuate from base to the short and feebly marked or subobsolete
tubulation, the smooth median line obsolete; scutellum quadrate, closely
squamulose, with acute hind angles; elytra a third longer than wide, para-
bolic, with somewhat prominent, rapidly rounded humeri, between two and
three times as long as the prothorax; grooves rather narrow, the intervals
very coarsely, confusedly punctate; male without marked abdominal charac-
ters and wholly without prosternal spines. Length 4.5-4.6 mm.; width 2.3-
2.4mm. Brazil (Chapada). March and November. Three specimens.
eximius n. sp.
T. L. Casey, Mem. Col. X, Aug. 1922.

194 MEMOIRS ON THE COLEOPTERA

Body nearly as in the preceding in color, lustre, sculpture and ornamentation, the
beak (2) almost similar, relatively not quite so long and more coarsely
punctate, more evenly tapering from the basal gibbosity to the apex, and
with the antenne more elongate and red-brown, with dark club; prothorax
longer, a third wider than long, the sides more feebly converging from the
base and less arcuate, gradually broadly rounding and strongly converging
anteriorly to the better marked tubulation; white squamules along the middle
forming a loose but entire line; elytra nearly similar in form and proportion,
but only a little more than twice as long as the prothorax, the grooves coarser,
the coarse and confused interstitial punctures equally conspicuous; on the
under surface the scales and slender squamules are uniformly whitish through-
out and, on the first two ventrals, are not abruptly condensed in a rather
small lateral spot on each, but are very gradually a little coarser and denser
laterally. Length 4.8-5.1 mm.; width 2.6-2.75 mm. Brazil (Chapada).
March and October. Two female specimens.............. comptus n. sp.

It seemed at first that the species described above under the
name cribricollis might be olferst Germ., but that is described as
being opaque, with gibbous base of the beak and piceous tibie,
which characters are in no way substantiated in cribricollis. Iam
not quite certain of the status of the types of duplicatus and amenus;
one is a female and the other male. They resemble each other
very closely, and were taken at very nearly the same time and
place, but in no other species does the relative coarseness of the
pronotal punctures differ sexually; and there are marked differences,
besides, in the density of the scales at certain parts of the under
surface, and also a rather conspicuous difference in the ornamenta-
tion of the elytra, the second, fifth and sixth intervals being in part
densely and pallidly squamose in amenus, besides the regular vitte
of the third and fourth. Examining good series of other species,
such as distinctus, no marked variability in the ornamentation is
observable, and I therefore leave the forms mentioned under the
specific relationships proposed above, at least provisionally.

The species described above as regalis, I had labeled for many
years ‘‘westwoodi,”’ but on reading Boheman’s description, so many
disagreements become evident that I cannot regard it as that
species, where the beak is said to be almost as long as the body,
the antenne partially ferruginous, the smooth thoracic line elevated
and the elytra ‘‘thorace fere duplo longiora.” Eximius and
comptus might be regarded as allied to trigrammicus, but the beak
there is said to be strongly arcuate. There is but little sexual
difference in the beak in eximius, but the differences of this nature
in regalis are extraordinary, and only to be equaled in Conoproctus
of the Madarini. The beak is very much shorter and less arcuate
in the female than in the male.

BRAZILIAN BARINZ 195

Parasaldius n. gen.

The body here is small in size, oval or subrhombic-oval, convex
and only moderately shining, the beak long, strongly arcuate,
separated from the head by a rather deep reéntrant angle, the
mandibles prominent when closed, denticulate and emarginate
within. Antenne more or less behind the middle, the first funicular
joint as long as the next three, the second usually more than twice
as long as wide, the seventh not much wider, the club moderate
and elongate-oval. The anterior coxe are separated by about half
their width, the prosternum in the male with two very slender,
and feebly oblique processes, notably long as a rule and recurved
slightly at tip. The femora are slender, not at all inflated and
mutic, the claws well developed, free and divergent. The pro-
thorax is gradually tubulate at apex, the vestiture sparse and un-
even. The six species before me may be known as follows:

Pronotum feebly and subevenly convex, as seen in lateral profile.............2
Pronotum strongly convex,/as viewed in profile... . 2). 0c. e ee tela 4.
2-— PFONOLUMEStLOMelyNpUNCtALC d= osyscs eos Ass doo Soe el nmee eereroe a et ee 6 3
Pronotum very finely, remotely and inconspicuously sculptured. . 5

3—Body oval or faintly subrhombic, deep black throughout, the fine scanty
squamules everywhere white, forming a narrow and very loose vitta near
each side of the prothorax; on the elytra they are sparse but distinct along
the entire base, closer at the scutellum, and also form a very loose, ante-
riorly pointed chevron near the middle and a slender line on the first inter-
val between the scutellum and chevron; under surface rather strongly but
sparsely punctate, each puncture with a slender white squamule, equally
sparse throughout the sterna and legs, wanting throughout the prosternum
and last three ventral segments; beak slender, strongly, evenly arcuate and
fully three-fourths as long as the body, distinctly punctured; antenne very
slender, piceous; prothorax barely more than a fourth wider than long, the
sides moderately converging and evenly arcuate from base to tubulation,
which is half as wide as the base (@) or less (co); punctures rather coarse
but separated, a little less coarse medially, where the smooth flat entire median
line is well defined, the basal lobe gradual, obtusely cuspidiform; scutellum
moderate, quadrate; elytra a fourth longer than wide, parabolic, but with the
apex obtuse toward the suture, the humeri not prominent, broadly rounded;
strie groove-like, deep, half to third as wide as the flat intervals, which are
loosely and coarsely punctured in even or uneven lines; abdomen strongly
convex and very shining, subglabrous, not at all modified in the male, the
prosternal processes long and very slender, usually deflexed at tip. Length
3.5-3-8 mm.; width 1.7-1.9 mm. Brazil (Para and Santarem). Five speci-
ITLENS ee ee oe el each rei cer ISA SAE IES Gee eee Rees sedulus n. sp.
Body throughout in color, sculpture and vestiture nearly as in the preceding but
larger and rather more elongate; head a little larger; beak much longer,
similarly strongly arcuate and distinctly sculptured, somewhat more than
three-fourths as long as the more elongate body; antenna slender, piceous;
prothorax and elytra nearly similar, the median chevron of the latter com-
posed of shorter, sparser and more unevenly scattered squamules; under
surface and abdomen nearly similar, the legs, however, much longer; pro-
sternal spines of the male a little more oblique and slender, straight and not

196 MEMOIRS ON THE COLEOPTERA

apically deflexed in the type, somewhat more than half as long as the body
in sedulus, a little less than half in the present species. Length 3.8-4.2
mm.; width 1.85-2.0 mm. Brazil (Santarem). A single pair.
longipes n. sp.
4—Form subrhombic-oval, rather strongly shining and deep black, convex; beak
(co) strongly arcuate, rather thick, not coarsely but strongly sculptured,
very evenly tapering throughout and a little longer than the elytra; antennze
slender, piceous, the second funicular joint subcylindric and nearly three
times as long as wide, the club scarcely longer than the four preceding joints;
prothorax scarcely more than a fifth wider than long, the sides broadly,
subevenly arcuate, becoming subparallel posteriorly, the tubulation half as
wide as the base; punctures coarse, well separated at the sides, the median
line and squamules as in the preceding species; scutellum quadrate, with a
few squamules, those of the elytral base and medial chevron nearly as in
sedulus; elytra rather more than a fourth longer than wide, only about two-
thirds longer than the prothorax, the oblique sides very moderately arcuate;
apex narrowly though obtusely rounded; groves deep, half as wide as the
intervals or somewhat less, the punctures of the interstitial series strong and
well separated; abdomen convex, sparsely punctured and unmodified in the
male, the prosternal processes long and very slender, longer than the head
and prothorax, obscure testaceous and so strongly curved that in apical half
they are perpendicular to the basal part. Length 3.25 mm.; width 1.4 mm.
Brazilk(Santarem)t, ‘Onemmaless: she see ee ee eee curvatus n. sp.
Form narrower, less rhombic and with shorter prothorax and less oblique sides of
the elytral chevron, deep black, the sculpture and vestiture nearly as in the
preceding, the beak not quite so long, but otherwise very nearly similar, the
antenne evidently less elongate; prothorax about a third wider than long,
the strongly arcuate sides gradually parallel basally, the apical tubulation
much shorter and more feebly marked, distinctly wider, and with larger
head in the female, where it is half as wide as the base; punctures rather
coarse, closer at the sides than in the preceding; smooth median line distinct;
surface similarly feebly gibbous; scutellum subquadrate, smooth; elytra a
fourth longer than wide, less (2), the sides less oblique and more arcuate
than in the preceding, the coarse sculpture and scanty white squamules
nearly similar, except that the loose median chevron is broader, with its
sides less oblique; abdomen strongly convex, distinctly but loosely punctate
in the male, the prosternal spines’short, very slender, almost semicircularly
curved and scarcely half aslong asthe tibia inthetype. Length 2.65-3.0mm.;
width 1.2-1.35 mm. Brazil (Santarem). A single pair..breviusculus n. sp.
5—Body small, almost evenly oval, moderately convex above, strongly so beneath
as usual, deep black and rather strongly shining, the squamules narrow and
white, very sparse on the pronotum sublaterally and at the elytral base,
more condensed near the scutellum and forming short loose single lines on
intervals 4-6 or thereabout, from the middle to apical third, fine and sparse
in the strong loose punctures beneath, but coarser and dense on the met-
episterna, the abdomen very sparsely punctulate and micro-squamulose;
beak slender, strongly arcuate and three-fifths as long as the body, cylindric,
feebly tapering and somewhat finely, loosely sculptured; antenne near
basal third, black, the first funicular joint as long as the next two, the club
oval and as long as the preceding five joints; prothorax nearly two-fifths
wider than long, the feebly converging sides a little more arcuate anteriorly,
the tubulation more than half as wide as the base; extreme sides rugosely
and coarsely punctate, all the rest very finely and remotely punctulate;
basal lobe sinuate at apex; scutellum small, obtrapezoidal and feebly im-
pressed; elytra oval, a fourth longer than wide, not twice as long as the

BRAZILIAN BARINZ 197

prothorax; grooves deep, punctate, a third or more as wide as the flat inter-
vals, which have single loose series of moderate but very distinct punctures.
Length 2.0-2.35 mm.; width 0.95-1.25 mm. Brazil (Santarem). Two
specimens—apparently female.........--.+++++s+s+-5> evanescens Nn. sp.
Body not so small, oblong-oval, moderately convex above, strongly so beneath,
deep black, moderately shining; beak very slender, strongly and evenly
arcuate, two-thirds as long as the body and feebly tapering, finely, sparsely
punctate, the antennz less posterior, barely visibly behind the middle,
obscure testaceous and shorter than in the preceding; prothorax two-fifths
wider than long, the strongly and subevenly arcuate sides becoming parallel
or even somewhat convergent at base, the moderate and gradual tubulation
not half as wide as the base; punctures, except laterally, minute and sparse
throughout, the white loose squamules evenly distributed at the sides; basal
lobe very short and broadly rounded; scutellum larger, flat, glabrous; elytra
obtusely oval, a fourth longer than wide, slightly wider than the prothorax
and evidently less than twice as long; grooves a third or fourth as wide as
the flat intervals, having loosely confused and moderate punctures, bearing
slender white squamules in single or partially double rows, and becoming
obscure in a large region before the middle of each; under surface with the
close-set punctures, bearing very fine and separated white squamules, be-
coming larger and dense on the met-episterna and mes-epimera; prosternum
as usual, nearly flat, finely fossate apically. Length 3.0 mm.; width 1.5 mm.
Brazil (Santarem). One example, apparently female... -.- tenuirostris n. sp.

The species named tenuwirostris does not, strictly speaking, belong
with the others above described, though connected in some ways
through evanescens. The mandibles are more strongly dentate,
the anterior coxee much more widely separated, in fact by more
than their own width, the antenne are more medially inserted and
the funicular joints, after the similarly elongate first joint, are
shorter, the seventh evidently transverse, the club subsimilar.
The scutellum is larger, more transverse and arcuate behind and
the basal lobe of the prothorax shorter and very broadly rounded.
The interstitial punctures of the elytra are confused and there is no
trace of the characteristic median chevron of loose white squamules.
The lateral sculpture of the pronotum is also altogether different,
consisting of oblique ruguliform punctures, bearing evenly distrib-
uted subtransverse squamules in about lateral fourth. Tenui-
rostris, therefore, constitutes a well defined subgeneric group of
Parasaldius for which I would suggest the name Parasaldidia (n.
subgen.).

Dericinus n. gen.

The general appearance of the unique type of this genus is very
different from any of those with which it is associated taxonomically,
the body being glabrous and polished, each of the moderately
strong punctures of the under surface having a minute slender
whitish squamule. The beak is rather short, thick and distinctly
arcuate, strongly compressed, coarsely punctured and longitudinally
furrowed and separated from the head by a deep sulcus. The

198 MEMOIRS ON THE COLEOPTERA

mandibles are straight within, though biemarginate, and are
prominent and non-decussate when closed. The antenne are sub-
medial, the first funicular joint about as long as the next two, the
others gradually broader and rather compact, the oval club gradual
in formation and as long as the preceding four joints. The pro-
sternum is flat, fossulate anteriorly and separates the coxe by fully
their own width. The femora are barely inflated, the claw-joint
long and the claws notably long, arcuate, free and divergent. The
prothorax is abruptly tubulate at apex and the scutellum small,
smooth, subquadrate and wider than long. The type may be
described as follows:

Dericinus habilis n. sp.—Body somewhat rhombic-oval, and convex, smooth,
polished and but slightly sculptured; beak as long as the head and prothorax,
rather more bent medially, feebly tapering; antennz not very slender and of
only moderate length, piceous; prothorax a third wider than long, the converging
sides very feebly arcuate, rounding apically to the truncate tubulation, which is
half as wide as the base; surface with extremely minute, remote punctulation,
becoming gradually strong though well separated punctures at the sides; basal
lobe small but rapidly formed and with truncate apex; elytra a fourth longer
than wide, parabolic, distinctly wider than the prothorax and very nearly twice
as long, the humeri somewhat prominent, rounded; grooves very abrupt, deep
and smooth, a third as wide as the flat intervals or less, the latter each with a
single series of very remote and minute punctures, each bearing a minute and
very slender brown squamule; punctures beneath coarse, well separated, those
of the notably convex abdomen rather small and sparse. Length 3.6 mm.;
width 1.8 mm. Brazil (Santarem). A single specimen, of undetermined sex.

This species can be recognized readily by the short thick beak,
with prominent mandibles, subglabrous, polished black integuments
and other characters as detailed above.

Ortycus Pasc.

What appears to be this genus is represented in my collection
by a single remarkable species. The body is stout, rhombic-oval,
very convex, clothed with long slender fulvous scales, very irregular
in arrangement and replaced beneath, except on the prothorax, by
minute slender whitish squamules. The beak is short, thick, feebly
arcuate and rapidly tapering, not separated from the head by a
distinct impression and is strongly sculptured, the mandibles prom-
inent when closed and non-decussate, the inner margins subdentate
or strongly crenulate, somewhat as in Centrinites. The antenne
are medial, rather short and compact, the first funicular joint
longer than the next two, the club well developed, oval, somewhat
abrupt and with very deep sutures. The prosternum is broadly,
evenly concave along the middle, the coxe well separated. The
femora are mutic as usual in this part of the tribe and feebly
inflated, the deeply fluted tibia rather strongly arcuate at base,

BRAZILIAN BARIN 199

the anterior straight, the claws somewhat thick, free and strongly
divergent. The prothorax is gradually and moderately tubulate
at apex, carinate centrally and with peculiar sculpture. The
prosternum is unarmed in the male. The only species known to me
is the following:

Ortycus cristosus n. sp.—Body stout, the integuments shining where exposed,
black, the entire prothorax above and beneath with long slender fulvous scales,
unevenly distributed, these scales forming small clusters along all the strial
intervals; beak (0) thick, distinctly longer than the head and prothorax, the
antenne piceous, or (2) less thick and three-fourths as long as the elytra; pro-
thorax a fourth (<”) to nearly a third ( 9) wider than long, the feebly converging
sides nearly straight, rapidly rounding and convergent beyond the middle, the
tubulation much less than half as wide as the base in both sexes; surface with
uneven anastomosing strigilation, very convex when viewed in lateral profile,
the median line smooth and cariniform but only centrally; basal lobe gradually
formed, somewhat narrowly rounded at apex; scutellum free, convex, glabrous,
subquadrate, wider than long, impressed along the middle; elytra but slightly
longer than wide, distinctly wider than the prothorax and much less than twice
as long, the humeri rather prominently rounded; sides notably oblique and
strongly arcuate, the apex very narrowly rounded; grooves coarse and deep,
somewhat unevenly punctate and half as wide as the intervals to less; intervals
more elevated internally, sloping thence externally, each with a single series of
coarse, subtransverse and remotely separated punctures. Length 3.2-3.7 mm.;
width 1.8-2.2 mm. Brazil (Santarem). Three specimens.

If the sexes are correctly identified, as seems probable from
certain differences in the beak, the male is much larger than the
female. This is one of the most isolated species of the Centrinites
series, and differs from the Parana type of Ortycus—Centrinus
perdix Pasc.—in its very much shorter second funicular joint and
more convex and differently sculptured pronotum; it inhabits a
notably different faunal region, but seems to be congeneric with
the type of Ortycus.

Saldius n. gen.

The body is here of very moderate to small size, as in the preceding
genera, and of oval, usually not at all rhombic form, but it is
somewhat ventricose. The beak is more or less slender, strongly
sculptured and usually rather long, feebly tapering, somewhat
flattened at apex, separated from the head by a moderately deep
sulcus, the mandibles rather strongly dentate and arcuate, but
feebly decussate and prominent when closed. The antenne are .
behind the middle of the beak as a rule and have the first funicular
joint notably elongate. The prosternum is flattened, although
feebly and indefinitely concave along the middle and with a moder-
ate anterior fossa, apparently never spinose in the male, and the
cox are separated by rather more than half their width; the
femora are mutic, not inflated, the tibiz straight and the tarsal
claws more or less long, arcuate, free and strongly diverging. The

200 MEMOIRS ON THE COLEOPTERA

squamules of the upper surface are sparse and diversified in char-
acter, those beneath minute and slender throughout, the prothorax
feebly tubulate with sparse punctures, and the elytra more or less
coarsely, deeply grooved. The species at hand are seven in number,
and they pertain to three subgeneric groups as follows:

Outer funicular joints gradually broader, the outline merging gradually into that
of the club, which is oval, pointed and about as long as the preceding three
joints; beak long and slender, gradually attenuated laterally and flattened
dorsally; pronotum with the median parts minutely, remotely punctate;
élytral grooves not halt as wide as theantervals..\.).(< 4 yes vcs eee I

Outer funicular joints more feebly enlarged, the oval club abrupt in formation;
beak much less elongate, not distinctly flattened distally; pronotum strongly
but loosely punctate throughout, the sparse unilineate elytral squamules
similarly suberect, the grooves very coarse, not or only slightly narrower
than the intervals, which are similarly uniseriately punctate............ II

Outer funicular joints and the club nearly as in the last, the beak slender, cylindric
and moderately arcuate; pronotum similarly strongly, loosely punctate
throughout, the fine squamules more plentiful and even, the squamules of
the strial intervals confused, decumbent, even and much more numerous,
the grooves scarcely half as nee as the intervals...... Ns SUE

I—Form moderately stout, rhombic-oval, polished Aan miceaey the. pronotum
blackish; beak ( 2) as long as the elytra, finely punctate, remotely so except
behind the antenne, where it is slightly inflated; antennz rufo-piceous,
behind basal third, the scape rather short; prothorax a third wider than
long, the converging sides very feebly arcuate, broadly rounding and con-
verging anteriorly to the short, truncate and subobsolete tubulation, which
is much less than half as wide as the base; punctures laterally strong and
longitudinally confluent and rugulose, remote on the rest of the disk and fine
but distinct, mingled with others infinitesimal in size; lobe small, cuspid,
with truncate apex; scutellum small, flat, moderately free, smooth, glabrous
and quadrate; elytra a fourth longer than wide, parabolic, slightly wider
than the prothorax and four-fifths longer, the humeri broadly rounded, not
prominent; grooves deep, abrupt, obscurely punctate at the bottom; single
interstitial series composed of coarse but shallow, moderately separated
punctures, bearing slender sparse suberect and yellowish setiform squamules;
under surface rather strongly, sparsely punctate, the inferior flanks of the
prothorax smooth, punctured anteriorly. Length 3.8 mm.; width 1.9 mm.
Brazilea(Santarem)) 2s) Onevexanp) Congres nies semilucidus n. sp.

II—Beak distinctly differing in the sexes, evenly, feebly tapering and not very
slender (<”), or slender, cylindric and nearly smooth, and somewhat abruptly
and strongly inflated in basal two-fifths (9); antennz behind the middle. .2

Beak almost similar in the sexes, subcylindric and extremely feebly, evenly
tapering throughout in both sexes, merely a trifle thicker and less smooth
in the male, the basal dividing sulcus deep; antenne somewhat beyond the
TaabCoCad (usto\|afo] a elage(s> «= 1c Nena RMA ER anne ic AeA te ans Bilin incr aeia Gis kei oe &

2—Body not very stout, rhombic-oval, moderately shining, piceous, with blacker
pronotum, the upper surface having sparse slender suberect pale yellowish
and subuniform squamules throughout, in single lines on the elytra; under
surface with minute whitish squamules; beak evenly and moderately arcuate,
as long as the head and prothorax (07), evidently longer (2), rather closely
but not coarsely punctured basally; antenne slender, rufo-piceous, at three-
sevenths (co) or two-fifths (9); prothorax a third wider than long, the
converging sides nearly straight to about the middle, thence broadly rounding

BRAZILIAN BARINZ 201

and converging to the distinct truncate tubulation, which is fully half as
wide as the base; punctures throughout very coarse, deep and subeven,
separated by about their own widths, close laterally but not evidently
confluent, without smooth median line; basal lobe very short and broadly
rounded; scutellum very free, parallel, longer than wide, subemarginate and
very feebly impressed, glabrous; elytra a fourth longer than wide, parabolic,
with feeble reéntrant angle at the suture, wider than the prothorax and not
quite twice as long; grooves very coarse, deep, strongly punctate along the
bottom and only a little narrower than the intervals; punctures of the single
interstitial series moderately coarse and rather close-set; under surface
strongly, subevenly punctate and very coarsely so throughout the inferior
flanks of the prothorax. Length 2.7-3.0 mm.; width 1.3-1.45 mm. Brazil
(Santarem). Four Specimems:. . 0... 5...-c-22 56s cee rae: fluminalis n. sp.
Body nearly as in the preceding but larger and distinctly more elongate; lustre
similar; color more nearly black; beak (9) and antenne nearly similar,
the club a little larger; prothorax a fourth wider than long, the converging
sides nearly straight, gradually rounding and converging anteriorly to the
feebler tubulation, which is distinctly less than half as wide as the base and
very much narrower and less pronounced or constricted than in fluminalis,
the sculpture nearly similar, the squamules less numerous; scutellum even
more elongate; elytra longer, nearly a third longer than wide, parabolic,
with still feebler and more broadly arcuate humeri and fully twice as long
as the prothorax; sculpture almost similar, the strial punctures not quite so
conspicuous, the squamules of the single series somewhat finer and shorter
and with more extensive admixture of darker squamules; in fluminalis they
are nearly all of a pale yellowish tint; under surface nearly similar. Length
3.35 mm.; width 1.6 mm. Brazil (Santarem). One female specimen.
mixtus n. sp.
3—Body rather stout and shining, piceous; beak moderately and evenly arcuate,
a little longer than the head and prothorax in both sexes, cylindric, feebly
(2) or scarcely at all (co) tapering from base to apex, gradually closely
punctate basally, more especially in the male and feebly gibbous above at
the sulcus; antennz obscure testaceous, the club small, oval; prothorax a
fourth wider than long, the converging sides nearly straight to apical third,
there rapidly rounding to the pronounced tubulation, which is not quite
half as wide as the base; punctures coarse and sparse, a little less sparse
laterally, with closer and less coarse punctures medially and a broad distinct
entire median impunctate line, the basal lobe obtusely cuspidiform, short;
scutellum free, glabrous, quadrate; elytra evenly parabolic, a fourth longer
than wide, over a fourth wider than the prothorax and much more than
twice as long; humeri slightly prominent; grooves very Coarse, with strong
punctures along the bottom; intervals equal in width to the grooves, each
with a single series of strong and well spaced punctures, the suberect slender
squamules yellowish or sometimes intermingled with some that are smaller
and darker, very fine, remote and inconspicuous on the pronotum; under
surface closely, rather strongly punctured and with very small slender pale
squamules. Length 3.75-4.0 mm.; width 1.75-1.85 mm. Brazil (Chapada).
On flowers near the forest. March and November. Eight specimens.
inzqualis n. sp.
Body nearly as in the preceding in color, lustre and general structure, but smaller
and narrower, the beak and antennz almost similar in both sexes; prothorax
shorter, about a third wider than long, the converging sides a little more
arcuate and more noticeably, though very gradually so, beyond about the
middle, rounding a little less rapidly apically to the somewhat similar tubu-
lation; punctures and long fine, very sparse squamules nearly similar, the

202

MEMOIRS ON THE COLEOPTERA

impunctate median line somewhat narrower; basal cuspidiform lobe some-
what more rapidly formed; scutellum fully as wide as long, slightly more
obtrapezoidal in form; elytra nearly similar in form and sculpture, but only
about a fourth wider than the prothorax and barely twice as long; intervals
as wide as the strongly punctate grooves, the single series of interstitial
punctures coarser, the long suberect squamules whiter, more uniform and
more conspicuous; punctures and small whitish squamules of the under
surface subsimilar. Length 3.0-3.6 mm.; width 1.35-1.65 mm. Brazil
(Chapada). Found at the same time and place as the preceding species.
Séven ‘Specinienss4 0. LAs ao ee cs reenter roe mae eae sulcatulus n. sp.

Body much smaller than in either of the two preceding species and still narrower,

with relatively smaller prothorax, red-brown in color and moderately shining;
beak and antenne nearly as in the two preceding but with the former rufo-
piceous and not black; prothorax a third wider than long, the feebly con-
verging sides nearly straight in about three-fifths, thence gradually rounding
and converging to the distinct tubulation, which is fully half as wide as the
base; sparse, coarse punctures and scanty slender squamules nearly as in
the preceding species, but with fewer or no admixed and less coarse punctures
medially, the smooth line similar; scutellum smooth, obtrapezoidal and
slightly impressed; elytra narrower, nearly a third longer than wide and
much more than twice as long as the prothorax, less evenly parabolic, the
sides straighter and less converging to well behind the middle, there becoming
more oblique and nearly straight to the rounded apex; sculpture and pale
uniform suberect squamules nearly as in sulcatulus, except that the grooves
are less coarse and very much narrower than the intervals; under surface
nearly similar but red-brown. Length 2.3-2.65 mm.; width 1.0-1.25 mm.
Brazil (Chapada—forest). Four specimens............. parvulicollis n. sp.

I1I—Form more oblong-oval and less shining, more alutaceous, black throughout;

slender squamules above and beneath much more numerous and evenly
distributed, conspicuous, confused and decumbent on the strial intervals;
beak very slender, cylindric, nearly smooth, evenly and rather strongly
arcuate, distinctly longer than the head and prothorax and differing very
little in the sexes, feebly thickened, closely punctate and squamulose near
the extreme base; antennez very slender and slightly behind the middle;
prothorax feebly convex in lateral profile, as in the other species, scarcely a
third (oc) to two-fifths (2) wider than long, the sides parallel and feebly
arcuate in about basal half, thence rounding and converging to the obsolete
apical constriction, the truncate apex fully half as wide as the base; punc-
tures moderately coarse, deep, separated by somewhat more than their
diameters, a little closer laterally, not mingled with smaller punctures and
with a median smooth line, not attaining base or apex; basal lobe short,
gradual and obtusely cuspidiform; scutellum longer than wide, flat and
obtrapezoidal, feebly squamulose; elytra less (9) to more (o’) than a
fourth longer than wide, the sides feebly oblique and broadly arcuate, the
apex rather broadly, obtusely rounded, distinctly wider than the prothorax
and not quite twice as long; grooves moderate, shallower than in any of the
preceding and catenulate, less than half as wide as the intervals, which are
distinctly but loosely, confusedly, sometimes unevenly uniseriately punctate.
Length 3.1-3.4 mm.; width 1.5-1.65 mm. Brazil (Chapada—forest). Six
SPECIMIENS NA Aaa eee, aes en ne See aS TERR ee eee rusticus n. sp.

There are probably many other species of this genus, which is
one of the characteristic neotropical flower-frequenting types of

the

smaller Centrinini.

BRAZILIAN BARINE 203

Centrinites Csy.

In this genus the feebly subrhombic-oval body is densely sculp-
tured, clothed with irregularly distributed narrow squamules and
has a somewhat opaque surface. The beak differs but little in the
sexes and is only moderately slender, distinctly arcuate, subcylin-
dric, closely sculptured at the sides and separated from the head
by a rather shallow reéntrant angle. The mandibles are denticulate
within but non-decussate and are prominent when closed. The
prosternum is shallowly and indefinitely impressed, the coxe
moderately separated and two short erect ante-coxal spines may
or may not be evident in the male, separated by a rather deep
cavity. The pronotum has a dense system of longitudinal and
more or less anastomosing ruge, the prothorax more or less tubu-
late at apex, the scutellum quadrate, slightly transverse, sinuate
behind and more or less squamulose, and the elytral strize are
groove-like, with closely and as a rule confusedly punctate intervals.
There seems to be no structural difference whatever between the
nearctic type, strigicollis, and the Brazilian forms here described,
but the outline of the northern species is more elongate. There
are five neotropic species at hand as follows:

Elytral grooves very coarse, even noticeably more so than in strigicollis. Almost
evenly oval, convex and pale piceous-brown, feebly shining, the slender
yellowish pronotal squamules very sparse and evenly distributed, closer at
the sides of the base and along the median line basally, those of the elytra
larger, in single interstitial lines and, in part, herissate, small and sparse but
distinct throughout the under surface and basal parts of the beak, which is
strongly arcuate and not quite half as long as the body, the antenne medial,
the first funicular joint about as long as the next three and the oval club
abrupt, as in the other species; prothorax two-fifths wider than long, the
sides converging and nearly straight, broadly rounding beyond the middle,
the truncate tubulation scarcely half as wide as the base; longitudinal ruge
coarser than in the following species, the basal lobe small and narrowly
rounded; scutellum obtrapezoidal, deeply sinuate and impressed at apex,
shining and glabrous, the lateral slopes basally with a few minute squamules;
elytra evenly parabolic, a fourth longer than wide, evidently wider than the
prothorax and twice as long; grooves as wide as the intervals to slightly
narrower, the strong punctures bearing small squamules; intervals flat, each
with a single series of very coarse and almost contiguous punctures; under
surface strongly, closely punctate. Length 2.75 mm.; width 1.35 mm.
Brazil (Chapada—forest). October. One specimen...... separatus n. sp.

Elytral grooves much narrower, indistinctly punctate and only a third or fourth
as wide as the intervals, which are very moderately but densely and con-
fusedly punctate; pronotal rugee dense and notably fine................. 2

2—Prothorax conical, the sides broadly and very feebly arcuate medially. Body
rather narrowly rhombic-oval, not at all shining, piceous; squamules de-
cumbent, abruptly dense at the sides of the pronotum and loosely aggregated
on the elytra internally toward base, also in a few small scattered spots, the
one on the humeri and on the basal thoracic lobe denser, the whitish squam-
ules of the under surface close, sparse on the metasternum; beak (<7) rather,

204

MEMOIRS ON THE COLEOPTERA

thick, strongly arcuate, dull, distinctly longer than the head and prothorax,
the antenne slender, distinctly beyond the middle; prothorax almost as
long as wide, the strigilation fine and very dense throughout; scutellum
nearly as in the preceding; elytra almost a third longer than wide, slightly
wider than the prothorax and four-fifths longer, the confused punctures of
the intervals rather strong and only moderately dense; male with two very
short erect prosternal spines, the abdomen very feebly impressed and less
squamulose medio-basally. Length 2.6 mm.; width 1.2 mm. Brazil (Rio
de Janeiro). November. One specimen................ conicicollis n. sp.

Prothorax more transverse and with the sides rather rapidly more rounding and

obliquesapicallyaan ace catenins Nea rs OO ee eee eee 3

3—Color dark piceous, the elytra black. Form subrhombic-oval and not shining;

pale squamules close at the sides of the pronotum and throughout the pro-
sternum, also on the basal lobe and in a few loosely aggregated small spots on
the elytra, also on the inner intervals at base; beak ( 9) somewhat thinner
than in the preceding male type, strongly arcuate, closely punctate at the
sides and with the usual sparse slender squamules, about two-thirds as long
as the elytra, the antenne only just visibly beyond the middle; prothorax a
third wider than long, the gradual and moderate truncate tubulation less
than half as wide as the base; strigilation fine and very dense, the median
line a somewhat coarser rugula; scutellum subglabrous, deeply sinuate;
elytra parabolic, rather more than a fourth longer than wide, slightly wider
than the prothorax and twice as long; confused interstitial punctures smaller
than in the preceding and very dense; abdomen densely squamulose through-
out. Length2.8mm.; width1.3mm. _ Brazil (Rio de Janeiro). November.
One female specinenid ced «eee ee ee fuscipennis n. sp.

Color piceous-brown throughout, the elytra not darker; elytra with more scattered

pale squamules and without such definite small remote spots as in the two
PRECQMIIGE 94155 ciibh gin TAR LS Ue 2 a aD ct 4

4—Body smaller, narrowly subrhombic-oval, the pale pronotal squamules_ sub-

evenly and loosely distributed, denser only at the base laterally, with a
dense whiter point on the basal lobe; on the elytra they are sparsely scattered,
somewhat closer on the second interval before the middle and in some
indefinite lineal regions apically; fine pale squamules rather sparse through-
out beneath; beak dull, strongly arcuate, but very little longer than the
head and prothorax, the antenne barely beyond the middle; prothorax not
quite a third wider than long, the feebly converging sides nearly straight,
gradually rounding and more oblique beyond the middle, the feeble tubu-
lation half as wide as the base; strigilation fine and dense; scutellum as in the
preceding; elytra nearly a third longer than wide, narrowly parabolic and
rather more than twice as long as the prothorax; interstitial punctures
moderate in size and not very dense, obviously separated; abdomen narrowly
and shallowly impressed medio-basally in the male, there being a very
feeble angulation also before each anterior coxa. Length 2.3 mm.; width
1.18 mm. Brazil (Rio de Janeiro). November. One specimen.

nanus n. sp.

Body rhombic-suboval, stouter than in any one of the preceding three species;

color and vestiture nearly as in nanus, except that the denser pale squamules
at the sides of the prothorax are not basal but extend through basal half;
on the under surface they are similarly dense narrowly along the sides;
beak as usual, only moderately slender, feebly tapering and closely punctured,
differing but little in the sexes, arcuate and a third longer than the head and
prothorax (<7), or still more arcuate, slightly more slender and smoother
apically and one-half longer than the head and prothorax (@); prothorax
a fourth (co) to nearly a third (@) wider than long, the sides gradually

BRAZILIAN BARIN4E 205

more arcuate and oblique in about apical half, the gradual and moderate
tubulation not half as wide as the base; strigilation fine and dense; scutellum
nearly as in the preceding, subglabrous, more impressed medially; elytra a
fourth longer than wide, evenly parabolic, slightly wider than the prothorax
and twice as long; pale squamules unevenly but, in general, loosely aggre-
gated over most of the intervals, which are not very coarsely, somewhat
loosely, confusedly and subrugulosely punctate; male with the prosternal
spines slender, erect, evidently arcuate and one-half longer than the thickness
of the femora. Length 2.65-2.75 mm.; width 1.45 mm. Brazil (Rio de
Janeiro). November. Three specimens...:.............. ovoideus n. sp.

It is rather remarkable that the last four species were all taken
near the same place and at the same season, but, so far as can be
determined, they are amply distinct among themselves.

Centrinopus Csy.

This genus is allied to Centrinites and is similarly widely distrib-
uted in North and South America; the body, however, is much
more minute in size, the beak longer, more slender, smoother and
less sculptured and, at apex, is slightly dilated and flattened, with
the mandibles similar; the line separating it from the head is ex-
tremely fine and barely observable. The antenna are slightly
behind the middle, slender, the first funicular joint as long as the
next three, the outer joints somewhat enlarged and frequently
coronate with slender white squamules, and the club is oval, very
moderate and rather abruptly formed. The prosternum is similarly
impressed but squamose along the middle, and the cox are moder-
ately separated. The pronotum is densely but discretely punctate
and the scutellum quadrate and densely squamulose, the elytral
strie deep. These characters are taken from the two Brazilian
species here described, but do not seem to differ from those of our
northern species; no prosternal spines are observable in the only
Brazilian male at hand. The two species are not at all closely
allied and may be described as follows:

Body suboblong-oval, convex, very densely and uniformly clothed above and
beneath with yellowish parallel scales, those below a little whiter; beak ( 9 )
very slender, subcylindric, three-fourths as long as the elytra, very smooth,
shining and glabrous, rapidly becoming closely squamose and gradually
slightly thicker basally; prothorax between a fourth and third wider than
long, the broadly arcuate sides more oblique in about apical, subparallel in
basal, half; punctures strong and extremely close throughout; base recti-
linearly transverse, the lobe abruptly formed, short, with truncate apex;
elytra a fourth longer than wide, obtusely oval, slightly wider than the
prothorax and somewhat less than twice as long; striz deep but not coarse,
distinctly parting the dense decumbent vestiture; abdomen very densely
and uniformly squamulose, the first suture distinct, arcuate medially, the
last three not coarse, strongly reflexed at the sides. Length 2.4-2.5 mm.;
width 1.05-1.2 mm. Brazil (Santarem). Two female specimens.

tectus n. sp.

206 MEMOIRS ON THE COLEOPTERA

Body narrower, more oval and more ventricose, the whitish squamules small,
very slender and well separated, but very evenly distributed throughout
above and beneath; beak in both sexes extremely slender, distinctly and
evenly arcuate, shining and glabrous, with scarcely visible squamules basally,
a third longer than the head and prothorax (0), two-thirds (2); prothorax
smaller in the male, a third to two-fifths wider than long, the sides broadly
arcuate, subparallel, more rounding and convergent anteriorly to a very
short truncate tubulation, which is half as wide as the base; punctures
strong and subcontiguous, the surface opaque; elytra nearly a third longer than
wide, more than a fourth wider than the prothorax and two and one-half
times as long, oval, rather narrowly rounded at apex; striz deep, much
coarser than in the preceding and half to third as wide as the intervals,
which are strongly, closely and confusedly punctate; male with the abdomen
somewhat deeply impressed and subglabrous along the middle basally.
Length 1.8-2.15 mm.; width o0.8-1.05 mm. Brazil (Chapada—forest).
November loworspecimenssme = see rere ee SA re longulus n. sp.

It is probable that these species frequent flowers in the forest
clearings.
Anavallius n. gen.

The general habitus of the body in this and the next genus,
which belong to the group, however, because of mandibular struc-
ture, differs entirely from that prevailing in the preceding genera,
the size being much larger and the surfaces polished and glabrous
or virtually so. The body in Anavallius is glabrous above, excepting
the subquadrate scutellum, which is densely clothed with white
squamules; on the under surface and legs each of the moderate
punctures bears a small and slender white squamule, rather more
abundant, longer and yellowish on the median part of the proster-
num. The beak is very thick and with coarse, longitudinal sulci
at the sides basally, finely punctate above and is almost similar in
the sexes, being merely a little more rapidly narrowed and more
slender beyond the antenne in the female. The mandibles are
dentate, non-decussate and, when closed, form an acute prominent
angle. The antenne are medial, long, the first two funicular
joints elongate, the first much the longer, and the club is small,
oval and abrupt. ‘The prosternum has an oval anterior fossa and,
between the spines in the male, is simply longitudinally impressed
and loosely clothed with squamules; the coxe are somewhat
narrowly separated. The prothorax is briefly and but feebly tubu-
late at apex and the elytra are deeply grooved. The type is the
following:

Anavallius ruficornis Boh.—Rather stout and convex, rhombic-suboval, deep
black and shining; beak moderately and evenly arcuate, separated from the head
by a feeble impression, two-thirds as long as the elytra (<7), a little shorter but
apically more slender and cylindric ( @), the antenne pale red-brown; prothorax
a third (co) to three-sevenths (9) wider than long, the sides somewhat strongly
converging and feebly arcuate, more rounding and converging anteriorly, the

BRAZILIAN BARIN 207

apex much (<”) ora little ( 2) less than half as wide as the base, the lobe gradually
formed and evenly rounded; punctures small and remote throughout, feebly
squamulose antero-laterad; elytra slightly more (9) or much more () thana
fourth longer than wide, evenly parabolic, more (<”) or less (2) than a fourth
wider than the prothorax and distinctly more than twice as long, the humeri
rather prominent, rounded; grooves deep, nearly smooth, about a fourth as
wide as the smooth intervals. Length 4.4-5.3 mm.; width 2.5-2.85 mm. Brazil
(Rio de Janeiro). Eight specimens. [Centrinus ruficornis Boh.]

The abdomen in the male is flattened but strongly punctured
basally, with a finely impressed or striiform median line, the pro-
sternal spines erect and but little longer than the thickness of the
anterior femora in the type. ®

Valliopsis n. gen.

The beak in the typical forms of this genus is very thick, com-
pressed basally, with the flattened sides tricostulate and with
densely punctulate and finely, sparsely squamulose interspaces,
gradually feebly tapering (co) or more rapidly so, cylindric and
less sculptured beyond the antenne (9), the antenne at three-
fifths (co) or four-sevenths (2), slender, with small and narrowly
oval club, the first funicular joint longer than the next two, both
of which are notably elongate. The mandibles are much as in the
preceding genus, bi- or tridentate and straight within, prominent
when closed and not decussate. The prosternum is densely squa-
mose throughout, not impressed and the coxe narrowly separated;
ante-coxal spines wholly wanting in the male. The prothorax is
not or scarcely tubulate at apex, the basal lobe gradual’ and broadly
rounded, and the scutellum is wider than long, obtrapezoidal, flat,
glabrous and broadly sinuate at apex, with acute angles. The
elytra have slightly prominent rounded humeri, deep grooves and
moderately prominent subapical discal tumidity. The species are
rather numerous and pertain to two subgeneric groups as follows:

Under surface densely and conspicuously squamose throughout; posterior femora
densely fringed beneath in the male, except in /ateralis, the abdominal im-
pression in that sex deep, more or less sharply limited and with longer, finer,
very sparse and suberect squamules. Subgenus Valliopsis............... 2

Under surface with fine and sparse, even squamules, not at all concealing the
integument but denser on the abdomen posteriorly; femora without trace
of inferior fringe in the male, the abdominal impression feebler and less
definite, clothed with very fine and slender, sparse hair-like squamules;
prothorax more evidently tubulate at apex. Subgenus Valliopsida (nov.).8

2—Beak very thick, as described above, notably thinner apically in the female;

prothoraxampuchinarmower than, theyelytia. (ec. .aci. <4) 2 wiciaie, omnes aise - « 3
Beak notably less thick and differing but little in the sexes; prothorax but little
narrower than the elytra; body smaller in size and narrower as a rule... ..6

3—Pronotum abruptly, densely squamose at the sides throughout the length... 4
Pronotum not squamose at the sides, except at apex..............--.0--00-- 5

208 MEMOIRS ON THE COLEOPTERA

4—Body rhomboid-suboval, convex, black, polished; elytra with a single spot
covering the base of the second and third intervals, all the dense scales
beneath and above ochreous in color; beak, as usual, separated from the
head by an obtuse reéntrant angle, evenly and moderately arcuate, as long
as the head and prothorax (<7), a little longer (9); antenne slender, pale
brown; prothorax a third wider than long, the sides converging throughout,
evenly and rather strongly arcuate, not becoming quite parallel at base;
discal punctures fine and sparse but distinct; elytra a third to two-fifths
longer than wide, two and one-half times longer than the prothorax, the
sides moderately oblique and only slightly arcuate, the apex broadly, obtusely
rounded; grooves abrupt and deep, nearly smooth, scarcely more than a
fourth as wide as the wide smooth flat intervals; suture not at all squamulose;
surface feebly undulated. Length 6.8-7.0 mm.; width 3.5-3.6 mm. Brazil
(Rio de Janeiro). October. Two spectmens. [Baris squamipes Germ.]
squamipes Germ.
Body almost similar in sculpture, coloration and squamosity, except that the
elytra have each a distinct and separate spot at the base of the second and
of the third interval, the spots not coalescent as in the preceding; beak (<”)
longer and less thick, slightly longer than the head and prothorax, the upper
surface less arcuate in profile and the antenne distinctly less apical; pro-
thorax similar in every way, except that the converging sides are sensibly
less arcuate; elytra shorter than in the male of the preceding, though similarly
much more than twice as long as the prothorax, the sides also very moder-
ately oblique, but more arcuate, the apex more obtuse, the general outline
less attenuated or cuneate from base to apex; basal abdominal impression
with shorter, sparser and less conspicuous squamuliform hairs. Length 6.25
mm.; width 3.2 mm. Brazil (Rio de Janeiro). October. One specimen.
campanulata n. sp.
Body smaller and more briefly suboval, black, polished, the vestiture disposed in
very nearly the same way as in squamipes, but nearly white, not ochreous-
yellow, and having in addition a few scales on the first interval behind the
scutellum in about basal third, and a small cluster at the base of the fifth;
beak (o”) as in sqguamipes but slightly less thick and longer, a fourth longer
than the head and prothorax, the antenne near three-fifths, slender, rufous
and with still smaller club; prothorax almost similar in every way, though a
little shorter; scutellum subsimilar but only a little wider than long; elytra
scarcely a third longer than wide, more evenly parabolic and with less
prominent humeri, otherwise subsimilar; under surface and legs nearly
similar, except that the hind femora have no trace of inferior fringe in the
male and that the squamules of the abdominal impression are less finely
hair-like and less herissate. Length 5.5-6.0 mm.; width 3.0-3.28 mm.
Brazil (Rio de Janeiro). November. ‘Two specimens....... lateralis n. sp.
5—Form rhombic-suboval, black, polished, the scales pale yellow; upper surface
glabrous, excepting a loose area at the sides of the pronotum apically and a
single cluster involving the bases of the second and third strial intervals;
beak (co) as in squamipes, but not quite so thick and longer, nearly as in
lateralis, the antenne at four-sevenths, slender, rufous, the club narrower
than in sguamipes and slender, with its basal segment longer than wide and
evenly obconic; prothorax not quite a third wider than long, the converging
sides almost straight to about the middle, there gradually and feebly rounding
to the feeble sinuses at the sides of the apex, the latter much less than half as
wide as the base and with a feeble median sinus; basal lobe not rounded as
in the preceding species, but with sinuate apex; surface with the minute
Sparse punctures somewhat more distinct; scutellum more strongly obtrape-
zoidal, finely punctulate basally in nearly the same way; elytra as in squam-

BRAZILIAN BARIN 209

tpes but still longer and more strongly rounded at apex, with the humeri
similar, distinctly more than twice as long as the prothorax; grooves and
general surface similar; characters of the legs and under surface almost
similar, except that the male abdominal impression is more broadly oval.
Length 6.8 mm.; width 3.6 mm. Brazil (Rio de Janeiro). October. One
SPEGLIME MA eae tetas yee EE Boh Ve me eure ptt atom ates binaria n. sp.
Form subsimilar but smaller in size and with the oblique sides ot the elytra more
arcuate; vestiture throughout similar and disposed in almost exactly the
same way; beak (co) much shorter, though of the same general form, very
stout, only as long as the head and prothorax, the antenne at three-fifths
and similarly rufous and very slender but not so long, with the slender oval
club still smaller, its basal segment not longer than wide; prothorax similar
in form but with the apex evenly truncate and with the sparse punctures
almost coarse toward the sides and on the feeble anterior constriction;
basal lobe obtusely rounded, not sinuate; scutellum smaller, smooth through-
out, wider than long, with acute angles, strongly obtrapezoidal; elytra
shorter, more evenly ovoidal, barely more than a fourth longer than wide,
with rather smaller humeral prominences, evidently more than twice as long
as the prothorax; surface even, not feebly undulated as in binaria, the
grooves not quite so coarse, the intervals somewhat narrower, with the remote
infinitesimal punctules somewhat more evident; sexual characters almost
similar. Length 5.0-5.25 mm.; width 2.7-2.8 mm. _ Brazil (Rio de Janeiro).
October and November. Two male specimens............... canora n. sp.
6—Body pale red-brown in color throughout, the punctures of the elytral grooves
distinct. Form narrower and more elongate than in any other species, the
scales yellowish-white in color, a few slender and sparsely scattered at the
sides of the pronotum, those of the elytra broader in a cluster at the bases
of the second and third intervals and also a few remotely scattered along
the first and some other intervals, the scales of the under surface dense and
broad; beak (oc) evenly and moderately arcuate, more cylindric and less
thick than in the preceding section, though subsimilarly sculptured and as
long as the head and prothorax; antenne near three-fifths, rufous and rather
slender, the first segment of the oval club somewhat wider than long, with
more arcuate sides; prothorax a third wider than long, the sides broadly,
subevenly arcuate, becoming parallel at base, the apex truncate, much less
than half as wide as the base; punctures fine and sparse, with an elongate
smooth area medially, but gradually coarse and closer toward the sides;
basal lobe evenly and gradually rounded, having a few fine squamules along
the edge; scutellum as in the preceding, but with less oblique sides; elytra
not quite one-half longer than wide, subevenly parabolic, two and one-half
times as long as the prothorax, the grooves rather coarse, more than a third
as wide as the intervals, which have sparse infinitesmal punctures, those
bearing squamules larger and distinct; basal abdominal concavity of the
male deep and abrupt, bearing long slender hairs, contrasting greatly with
the broad dense scales of the rest of the surface; inferior femoral fringe
dense, not entire. Length 4.25 mm.; width 1.9 mm. Brazil (Chapada—

forest). November. One male, on flowers in clearing...... angustior n. sp.
Body less slender, black, the prothorax sometimes obscure rufous or piceous, the
punctures ofathevelytralkerooves lessrevident:. 4 s-n-e 6 «estes en. = 7

7—Body stouter and with larger prothorax, the sutural interval very sparsely
squamose; color deep black and shining, the prothorax sometimes faintly
piceous, the legs and beak piceous; beak (@) arcuate as in all the other
species, evidently longer than the head and prothorax, sculptured as usual,
rather thick, thinner and more cylindric distally; antenne medial, rather
long and slender, rufous, the club shorter than usual, oval, only as long as

T. L. Casey, Mem. Col. X, Aug. 1922.

210

MEMOIRS ON THE COLEOPTERA

the three preceding joints; prothorax two-fifths wider than long, the foder-
ately converging sides feebly arcuate, more rounding anteriorly, the truncate
apex scarcely over two-fifths as wide as the base; punctures sparse, small
medially, becoming somewhat coarse but still well separated toward the
sides; basal lobe very gradual and broadly rounded, with a very feeble
minute sinuation at the middle of the apex; scutellum wider than long,
moderately obtrapezoidal; elytra almost evenly parabolic and fully three-
sevenths longer than wide, about two and one-half times as long as the
prothorax, the humeri scarcely prominent; grooves somewhat coarse, a third
as wide as the almost flat and nearly smooth intervals; abdomen very feebly
impressed but with notably sparse and fine squamules medio-basally. Length
4.6-5.0 mm.; width 2.5-2.8 mm. Brazil (Chapada). March and Novem-
ber. On flowers. Three female specimens............5.....: mera n. sp.

Body narrower, though not so narrow as in angustior, deep black, sometimes

with obscure rufous prothorax and rufo-piceous legs and beak; prothorax
relatively not so large, the scales of the sutural interval notably close-set
throughout the length, sometimes in single line; scales yellowish-white as in
the preceding and subsimilarly arranged; beak only moderately thick and
almost exactly similar in the sexes, smoother and barely visibly more cylindric
distally in the female, equal in length to the head and prothorax (@), or
barely shorter (c”); antenne slender, obscure rufous, at four-sevenths ( 9 )
or slightly beyond (o”); prothorax rather small, two-fifths wider than long,
the arcuate sides parallel at base, only a little more arcuate anteriorly, the
truncate apex much less than half as wide as the base, the basal lobe nearly
as in the preceding; punctures very fine and remote, with the usual median
vacant space, becoming rather coarse but well separated laterally; scutellum
slightly transverse, obtrapezoidal; elytra nearly as in the preceding but
narrower, slightly less than one-half longer than wide; male abdominal
impression similar, deep and very abrupt. Length 3.7-4.5 mm.; width
I.7-2.25mm. Brazil (Chapada). November. On flowers. Six specimens.

eximia n. sp.

Bo y narrowly subrhombic-oval, deep black, the surface shining, glabrous above,

excepting a cluster of whitish scales occupying the base of intervals two and
three, the sutural interval and general surface without trace of the separated
scales of the two preceding species; under surface with the broad dense
scales whitish; beak (@) nearly as in the preceding, as long as the head
and prothorax, the dark rufous antenne medial, long and slender; prothorax
two-fifths wider than long, the somewhat strongly converging sides very
moderately arcuate, more rounded just behind the short though obvious
tubulation, which is truncate and almost half as wide as the base; surface
with small but strong, moderately sparse punctures, becoming rather coarse
and closer laterally, where there are a very few squamules near the extreme
sides, the smooth median line as usual; basal lobe nearly as in the preceding;
scutellum flat, scarcely wider than long, with moderately oblique sides;
elytra in form nearly as in the preceding, but with the grooves not quite so
coarse. Length 3.85 mm.; width 2.15 mm. Brazil (Chapada). March.
One-female: specimens. 2 fy Hee eee ON aad So ES Oe inanis n. sp.

8—Form rather stout, rhombic-suboval, deep black and shining, the upper

surface entirely glabrous, excepting a cluster of white scales at the base of
the third strial interval, the very sparse squamules of the under surface
white, dense on the abdomen posteriorly; beak (co) only moderately thick
and arcuate, sculptured nearly as in the preceding group, very slightly and
evenly tapering from base to apex and as long as the head and prothorax,
the antennz medial, piceo-rufous, not quite so long as in the preceding group
and with the second and third joints relatively less elongate, the club narrowly

BRAZILIAN BARINZ OT

subrhombic; prothorax a third wider than long, the sides moderately con-
verging and feebly arcuate, somewhat rapidly so anteriad to the short
truncate tubulation, which is much less than half as wide as the base; surface
finely, remotely punctate, gradually rather coarsely and more closely laterad;
basal lobe broad, gradual and very broadly, evenly rounded; scutellum a
little wider than long, with very oblique sinuate sides and acute and very
prominent angles, the apex sinuato-truncate; elytra barely a third longer than
wide, nearly a third wider than the prothorax and much more than twice
as long, evenly parabolic, with somewhat prominent, rounded humeri;
grooves about a third as wide as the nearly smooth intervals, evidently
punctate along the bottom; male with the rather deep basal impression
finely, remotely punctulate and with slender hairs. Length 5.25 mm.;
width 2.85 mm. Brazil (Chapada). November. On flowers, near the
forest. “One specimemy.g. 34 6sc 66 eo ee oe ee ne obesula n. sp.
Form less stout and smaller in size but similar in outline, coloration, lustre and
vestiture; beak (<”) nearly similar but relatively longer, distinctly longer
than the head and prothorax, the antenne subsimilar; prothorax smaller,
distinctly shorter, two-fifths wider than long, similar in outline and sculpture,
except that the punctures laterally are not quite so coarse and, on the whole,
somewhat sparser; basal lobe notably narrower and more strongly rounded
at tip, though gradually formed; scutellum not wider than long, the sides
less oblique and the acute angles less prominent; elytra similar but not so
broad, slightly less prominent at the humeri, the grooves somewhat less
coarse and less strongly punctate; base of the second and fourth intervals
usually with a few squamules, besides the larger spot at the base of the second;
sexual characters similar; female a little stouter than the male, with the
beak no longer but more rapidly inflated at base and more evenly cylindric
and smoother beyond the antenne, which are inserted distinctly behind the
middle, and therefore much more posterior than in the preceding subgenus.
Length 4.0-5.0 mm.; width 2.15-2.75 mm. Brazil (Chapada—forest).
November. Eight specimens...........--.-++-s+eeee0: temperata n. sp.

It is probable that Valliopsis is a rather large genus, but, according
to all evidence now available, it seems to be wholly wanting in the
Amazon Valley. The absence of the femoral fringe of the male in
lateralis appears to be entirely exceptional in the subgenus Valliopsis
and is quite remarkable.

Zygozalestes n. gen.

The considerable series of genera from this point to the end of
the tribe Centrinini, is characterized by mandibles that are straight
or only slightly irregular on their inner edges and not at all decussate,
usually forming a prominent acute angle when closed. The present
genus is peculiar in its short, thick and strongly compressed beak,
separated from the head by a very large deep sulcus, its upper
surface obtusely prominent near basal third and gibbous at the
sulcus. This form of beak is presaged to marked degree by the
rather short and very thick compressed beak prevailing in the two
preceding genera, but there the basal dividing sulcus is merely a
moderate simple impression, and the sculpture of the compressed
sides is very different, for here, instead of the coarse ridges of the

212 MEMOIRS ON THE COLEOPTERA

two preceding, the flattened sides are simply coarsely and discretely
punctate. The mandibles are unusually long and are prominent
when closed, the antennz notably short, thick and rather compact,
the obconic first funicular joint fully as long as the next three, which
are short and equal, the club short, obtusely oval, rather gradually
formed and only as long as the preceding three joints. The pro-
sternum is convex along the middle, except anteriorly, and rather
widely separates the coxe; there is no trace of ante-coxal spines
in the male. The femora are stout and mutic, the tibiz very short
and the claws well developed, free and strongly diverging. The
prothorax is subquadrate, abruptly tubulate, the scutellum elongate,
the elytra deeply grooved and the integuments shining and glabrous
throughout. There are three species at hand as follows:

Form oblong, subrhombic-oval, shining, black; beak differing very little in the
sexes, not quite as long as the head and prothorax, just visibly longer and
less thick in the female, the flattened sides basally somewhat concave and
strongly, loosely punctate, the remainder finely, sparsely so, more densely
toward tip in the male; antennz virtually black, the scrobes very oblique;
prothorax two-fifths wider than long, the sides subparallel and barely visibly
arcuate, almost angularly rounded and then subtransverse at apex to the
tubulation, which is about half as wide as the base; the basal lobe moderate,
rather rapidly formed and with sinuate apex; punctures somewhat small,
remote, evidently coarser but still sparse laterally; scutellum narrow, one-
half longer than wide and obtrapezoidal; elytra obtusely parabolic, a fourth
longer than wide to less, more than a fourth wider than the prothorax and
distinctly more than twice as long, the humeri rather prominent; grooves
deep, feebly punctulate, about a third as wide as the intervals, each of which
has a single series of moderate and well separated punctures; male with the
abdomen rather closely punctate basally, more finely in the somewhat shal-
low medio-basal impression, the female abdomen finely, very sparsely punc-
tate. Length 4.0-4.6 mm.; width 2.2-2.4 mm. Brazil (Chapada—forest).
November, Eleven (specimensse seca. 2.0. - aed omer oblongus n. sp.

Form shorter and relatively broader, with longer prothorax, deeper and more
polished black throughout; beak (<) still shorter, not quite as long as the
prothorax, the punctures in the subbasal concavity at the sides not so coarse
and sparser; antenne nearly similar but less medial, at about three-fifths;
prothorax nearly similar in general outline and structure, but larger and
only a fourth wider than long, with the sparse punctures coarser and more
impressed, and, although noticeably somewhat larger, only very little less
sparse laterally; scutellum much less elongate and nearly quadrate, also
with less evident fine punctulation; elytra nearly similar but shorter, ob-
tusely oval, not a fifth longer than wide and scarcely twice as long as the
prothorax, the grooves not quite so coarse, the surface nearly similar; male
with the abdomen subsimilarly punctate basally, but with the impression
rather more acute along the bottom. Length 4.2 mm.; width 2.35 mm.
Brazila(Santarem) ss Avsinel emmaleveania heals eee thoracicus n. sp.

Form narrower and more elongate than in either of the preceding, piceous-brown
in color, the beak and antenne black, similarly shining; beak (2) scarcely
as long as the head and prothorax, much less inflated basally than in the
female of oblongus, the curvature of the upper surface from base to apex
very nearly even and without the tumidity at basal third, the sides flattened

BRAZILIAN BARINE 213

even beyond the antenna, feebly concave and strongly, loosely punctate
basally, finely, closely and obliquely substrigilately punctulate beyond the
antenne, which are exactly medial; prothorax a little narrower and longer
than in oblongus, but otherwise similar, except that the small strong punctures
are subequal in size and remoteness throughout, about the same size as in
that species and finer than in thoracicus; basal lobe almost even, the apical
sinus being extremely small and feeble; scutellum still smaller, smooth, not
longer than wide and with feebly oblique sides; elytra more obtusely oval,
the sides more parallel, the apical arcuation beginning at about the middle,
much wider than the prothorax but not more than twice as long, the grooves
subsimilar but less deep, with the small punctures along the bottom more
evident; interstitial series single and even but of almost infinitesmal punc-
tures, much smaller than in oblongus but almost as in thoracicus; abdomen
finely and sparsely punctate basally as in the female of oblongus. Length
4.6 mm.; width 2.0 mm. Brazil (Santarem). A single female specimen.

tubulifer n. sp.

Besides the remarkable beak, this genus exhibits certain other
extraordinary peculiarities, such as the convex prosternum, the
elongate narrow scutellum of oblongus, and the marked sexual differ-
ence in the punctuation of the abdomen toward base. It is, on
the whole, one of the more highly specialized of the Centrinid genera.

Liocentrinus n. gen.

This is also an isolated genus, with body wholly unlike the pre-
ceding, but having the rather short, thick and strongly compressed
beak of the three preceding; here, however, it is separated from the
the head by only a very shallow obtuse reéntrant angle, the sides
perfectly flat from base nearly to apex and coarsely, densely and
evenly punctured; on the upper surface it is flattened and strongly
tricarinate, with strong punctures between the polished carine.
The mandibles are prominent when closed and have their inner edges
straight and even. The antenne are inserted but very slightly
beyond the middle, slender, with the first funicular joint nearly as
long as the next three, the second also somewhat elongate, the club
small, oval and as long as the three preceding joints. The male
prosternum has a narrow and deeply impressed channel, obtusely
limited at the sides and evenly clothed with scales, like the rest of
the prosternal surface, the cox somewhat narrowly separated.
As in the preceding, the femora are well developed, but the hind
tibie, as there also, are very short, and, in this case, broad, very
densely, evenly and rugosely punctate and with their outer outline
strongly sigmoid. The prothorax is not tubulate at apex, the
scutellum large, flat and quadrate and the elytra deeply grooved.
The type is as follows:

Liocentrinus scutellatus n. sp.—Suboval, strongly convex and ventricose, deep
black and shining, wholly glabrous above, except the scutellum, which is densely

214 MEMOIRS ON THE COLEOPTERA

albido-squamose, the under surface with very small white squamules in the rather
strong but loose punctures, these a little denser and more conspicuous on the
prosternum; beak in the type thick, about as long as the head and prothorax,
almost straight, bending slightly at base, evenly and feebly tapering; antenne
piceo-rufous; prothorax only a fourth or fifth wider than long, the strongly
arcuate sides gradually becoming parallel basally, the basal lobe extremely short
and broad, very broadly, evenly rounded; punctures fine but deep, very sparse
throughout; scutellum large, free; elytra evenly but obtusely parabolic, fully a
third wider than the prothorax and much more than twice as long, the humeri
evenly rounding to the base; grooves deep, nearly smooth, about a fourth as wide
as the flat and almost smooth intervals; abdomen convex, with moderate and
rather sparse but conspicuous punctures. Length 6.0 mm.; width 3.3 mm.
Brazil (Rio de Janeiro). November. One specimen.

The glabrous upper surface, with large, abruptly and densely
squamose scutellum, stout beak and very short hind tibiz, are
among the most peculiar features of this remarkable species, which
it hardly seems to me can be hitherto undescribed.

Zalestes n. gen.

In this genus the oval convex body is polished and wholly glabrous
above and beneath. It has no close affinity with the preceding, the
beak being slender and cylindric, only feebly tapering and separated
from the head by the feeblest vague impression; the antenne are
subbasal, with extremely short scape, long funicle, with the basal
joint as long as the next two, the second also distinctly elongate
and the club rather large, oval, rendered less abrupt because of
the notably large seventh funicular joint, which is densely pubes-
cent, unlike the preceding joints but like the club. The mandibles
are straight and even within. The prosternum is narrowly and
deeply canaliculate, and the coxe separated by almost their own
width. The hind tibie are rather short but normal and almost
straight, loosely punctate, the narrow femora minutely and sparsely
so. The prothorax is large, briefly but abruptly and somewhat
narrowly tubulate, and the scutellum is small, flat, quadrate with
arcuate sides, glabrous and in close contact with the elytra, the
latter abruptly and deeply grooved. The type may be described
as follows: ¥

Zalestes perpolitus n. sp.—Oblong-oval, convex, deep black throughout and
highly polished; beak (9) about as long as the head and prothorax, not at all
compressed and very finely, sparsely punctate throughout, slender, the basal part
very slightly thickened, almost evenly and moderately arcuate; antenne at basal
fourth, pale piceo-rufous, with black scape; prothorax a third wider than long,
the sides distinctly converging but only very feebly arcuate, rounding gradually
toward apex, the tubulation scarcely over two-fifths as wide as the base; surface
smooth, not evidently punctate, the basal lobe gradually formed, with its apex
rather narrowly and evenly rounded; at each side there is a feeble basal impres-
sion; elytra scarcely a fourth longer than wide, triangular, with strongly and

BRAZILIAN BARIN 215

evenly arcuate sides and narrowly rounded tip, only about a sixth wider than the
prothorax and distinctly less than twice as long, the humeri broadly rounded,
barely at all prominent; grooves about a fourth as wide as the nearly punctureless
intervals; abdomen with fine, sparse punctures, coarse but well separated basally;
the claws are slender, strongly arcuate and widely separated. Length 4.1 mm.;
width 2.4 mm. Brazil (Amazones). A single female, communicated by Des-
brochers des Loges.

To be easily recognized by the glabrous surface, oblong-oval
form, large prothorax, almost rounded and closely fitted scutellum,
slender beak and numerous other structural characters.

Sunilius n. gen.

The strongly flattened beak in the female and broad convex
prosternum, very widely separating the coxe, are features which
render this genus quite different from any other of the present
group. The body is feebly rhombic-oval, shining and glabrous,
excepting some fine sparse setiform squamules on the elytra and
under surface, the prothorax deeply constricted at apex, very
sharply defining the parallel tubulation, and the basal lobe is
somewhat rapidly formed and with narrowly truncate apex. The
scutellum is small, flat, arcuately subquadrate and slightly free,
and the elytra sharply but moderately grooved. The legs are
normal in general structure, the femora unarmed, the tibiz straight
and broadly fluted, the third tarsal joint oval, incised and moderately
dilated and the fourth suberect and as long as the entire basal part
and with long thick diverging claws. The type is the following:

Sunilius platyrhinus n. sp.—Moderately stout, strongly convex, polished and
deep black throughout; upper surface glabrous, excepting a single line of minute
and slender, subfuscous sete on each strial interval, confused but sparse near the
scutellum, each puncture of the under surface with a very minute hair-like
squamule; beak (@) evidently longer than the head and prothorax, the dorsal
part beyond the antenne parallel, flat, straight, minutely and sparsely punctate
and alutaceous, except along a medial line, that behind the antenne rapidly
thickened, cylindric, seriato-punctate, more shining and in profile slightly arcuate;
antenne slightly behind basal third, blackish, the first funicular joint as long as
the next two, the second elongate, the outer joints not dilated, the club very
small, narrowly oval, gradual, with glabrous basal segment and not as long as
the preceding three joints; prothorax scarcely a fifth wider than long, the feebly
converging sides evenly and moderately arcuate from base to the very abrupt
angulation at the deep constriction, the apex not quite half as wide as the base;
punctures rather strong and confusedly linear at the extreme sides, finer and
very remote elsewhere; elytra a third longer than wide, slightly wider than the
prothorax and three-fourths longer, the humeri only feebly tumid, oblique;
sides evenly arcuate, the apex rather strongly rounded; grooves deep, smooth;
intervals nearly five times as wide as the grooves, each with a series of fine punc-
tures. Length 5.0 mm.; width 2.7 mm. Brazil (Santarem). One female
specimen.

From each of the small apical fovezee of the prosternum there

216 _ Memoirs ON THE COLEOPTERA

proceeds posteriorly a fine impressed line, curving outwardly and
obsolete before attaining the coxe. This is a decidedly remarkable
species.

Reveniopsis n. gen.

This genus apparently belongs near the preceding genera, but
the mandibles, though non-decussate and prominent when closed,
have their inner edges not perfectly straight but subdenticulately
crenate. The beak is rather thick, compressed and _ laterally
strongly, closely punctate basally, rather slender, cylindric and
smoother distally, somewhat broadly convex above, with a fine
carina at each side, and with the punctures arranged in regular,
widely spaced series; it is separated from the head by a rather deep
reéntrant angle; antennz medial, the first funicular joint as long
as the next two, the second also somewhat elongate, the outer
joints gradually wider, compact, the club short, oval, gradual and
not as long as the preceding three joints. The prosternum is
peculiar, having an elongate-oval parallel area, coarsely, densely
punctate, flat and with smooth beaded periphery, extending be-
tween and rather widely separating the coxee. The legs are normal,
the claws long, free and divergent. The prothorax is deeply
constricted at apex, the tubulation very abrupt and with parallel
sides, the scutellum small, transversely quadrate and in close
contact with the elytra, the latter deeply and abruptly grooved.
The type is the following:

Reveniopsis seriatirostris n. sp.—Somewhat broadly, obtusely oval, convex,
polished black and glabrous throughout; beak ( 9) thick, evenly and moderately
arcuate and a third longer than the head and prothorax, the antenne piceous;
prothorax fully two-fifths wider than long, the sides distinctly converging, very
evenly and feebly arcuate from base to apex, where they are abruptly turned
inward, becoming transverse for a short distance to the tubulation, which is
truncate, distinctly punctured and less than half as wide as the base; surface
smooth, becoming sparsely and rather finely punctured at the sides, these punc-
tures each with a very minute dark erect hair; basal lobe well developed, some-
what long and cuspidiform, with the apex broadly obtuse; lateral impressions
at base very feeble; elytra oval, with strongly arcuate sides and moderately
narrow apex, barely at all longer than wide, a fifth wider than the prothorax
and twice as long, the humeri slightly prominent; grooves deep, a fourth as wide
as the intervals, which have single series of extremely minute punctules, becoming
larger and somewhat strong laterally; abdomen convex, with fine sparse punc-
tures, rather coarse and close latero-basally. Length 4.0 mm.; width 2.6 mm.
Brazil. A single female, sent by Desbrochers des Loges, who stated that he had
received it under the name ‘“‘/ugubris Dej.”

This interesting generic type can be identified easily by the very
abruptly tubulate prothorax, glabrous surface and very peculiar
structure of the prosternum; the rather thick beak is relatively
longer than in most of the preceding genera of this section.

BRAZILIAN BARINZ 217,

Macrorevena n. gen.

In this genus the body is rather large and stout, smooth, com-
pletely glabrous above and beneath and deep black in color. The
beak is subsimilar in the sexes, somewhat thick, rapidly tapering
distally, compressed, the flattened sides coarsely and rugosely
punctured; it is separated from the very convex head by a deep
reéntrant angle, and its upper surface is evenly and strongly convex,
minutely and sparsely punctate; the sides of its concave under
surface are angulate near the base. The mandibles are rather
short and obtuse, not decussate but with not quite straight inner
margin, that of the right sinuate apically. Antenne submedial,
the very short scape coming very far from attaining the base,
rather slender, the first funicular joint nearly as long as the next
three, the second slightly elongate, the club very small, oval, not
as long as the preceding three joints, with large basal segment,
constituting fully half the mass. The anterior coxe are very
narrowly separated, the prosternum with short erect or obsolescent
spines, which are separated by a moderate or deep concavity or,
in the female, broadly and feebly concave and smooth, the flattened
part somewhat sharply limited at the sides and also having a small
deep polished pit at apex. The femora are feebly inflated, finely,
sparsely punctate, the hind tibiz normal in the female, but broadly
inflated with arcuate sides in the male, the claws slender, arcuate
and widely diverging. The thoracic apex is abruptly and strongly
tubulate, the constriction marked by a series of coarse punctures,
the basal angles rather obtusely rounded, the elytra with broadly
-undulated surface, deep grooves and somewhat convex intervals.
The female abdomen is modified medio-basally, as well as that of
the male.

As may be judged by the characters given above, this is a very
remarkable genus, especially in prosternal structure and in the
sexual characters of the hind legs and abdomen. There are three
species at hand as follows:

Body less stout, the sides of the prothorax evenly and moderately arcuate, not
becoming quite parallel at base. Rhombic-suboval, convex, polished and
smooth; beak (<”) rather thick, as long as the head and prothorax, feebly
arcuate, gradually more so basally, the antenne piceous; prothorax two-
fifths wider than long, the truncate tubulation but little more than two-fifths
as wide as the base; surface very minutely, remotely punctate, somewhat
more distinctly but not more closely at the sides, the basal lobe gradual,
strongly, evenly rounded, with convex and somewhat punctured apex, the
lateral impressions at base very feeble; scutellum smooth, half as wide at
base as at the truncate apex, the oblique sides strongly sinuate, the angles
acute and prominent; elytra almost a third longer than wide, a fourth wider
than the prothorax and much more than twice as long, evenly parabolic,
the humeri slightly prominent, the mes-epimera very distinct above in the
reéntrant angles; grooves deep, about a fourth as wide as the nearly smooth

218

MEMOIRS ON THE COLEOPTERA

intervals; male with two narrow obtuse and punctate, straight diverging
prosternal ridges, becoming prominently angulate near the coxe and sepa-
rated by a deep smooth cavity, the abdomen medio-basally broadly, subangu-
larly concave and finely, densely pubescent, the subacute bottom smooth,
the hind tibiz broadly inflated, convex and rather strongly, unevenly punc-
tate. Length 5.6 mm.; width 3.25 mm. Brazil (Santarem). One: speci-
ATO TIS for seen ANCOR RE ein, 0 ofl Gokeo ence ORSTED oes gener ea ooeEIE Sy met oe latitibia n. sp.

Body much stouter, rhombic-oval, the sides of the prothorax strongly arcuate,

becoming: subparallel in‘nearly basal half. 4.2.28 2. 0... te. See 2

2—Prothorax relatively narrower, only three-fourths as wide as the elytra,

polished, black; beak (@) slightly longer than the head and prothorax,
subevenly and distinctly arcuate, rather thick and strongly sculptured
laterally behind, more slender, cylindric and nearly smooth beyond, the
antenne, which are rufo-piceous in color; prothorax three-sevenths wider
than long, the surface, tubulation and basal lobe nearly as in the preceding;
scutellum shorter and medially more impressed, otherwise nearly similar;
elytra a fifth longer than wide, broadly parabolic, but with narrowly rounded
apex, distinctly more than twice as long as the prothorax; grooves coarse and
deep, somewhat punctulate and rather more than a fourth as wide as the
smooth and broadly convex intervals, the large humeri obliquely rounding
to the base, the mes-epimera scarcely at all visible from above; abdomen in
the female deeply, subangularly impressed medio-basally but not differently
punctate from the rest of the surface, except that at three-fourths from the
base there is a transversely oval area of fine, dense punctures, bearing long
brown hairs, and also a somewhat similar transverse area at the anterior
edge of the second segment; hind tibia normal but coarsely, very densely
punctate. Length 7.2 mm.; width 4.5 mm. Brazil (Tijuca—near Rio de
Janeiro). November, (One speciment: ) 5-40. .aee see eae convexa Nn. sp.

Prothorax larger, four-fifths as wide as the elytra, the integuments as in the

preceding; beak (<) as long as the head and prothorax, evenly arcuate,
rather thick, with the compressed sides coarsely, rugosely punctate basally,
gradually tapering and nearly smooth distally, or (2) almost similar but a
trifle longer and less thick, gradually cylindric distally and with the sides
basally less compressed and less coarsely, loosely punctate; antenne rufo-
piceous; prothorax nearly as in convexa in form and sculpture in both sexes,
the scutellum also similar but not impressed; elytra nearly a third (co) to
less than a fourth (2) longer than wide, much more than twice as long as
the prothorax, the general form and sculpture nearly as in convexa but not
so stout, with the grooves smoother and barely more than a fourth as wide
as the smooth intervals, which are not convex but flat; humeri and
mes-epimera nearly similar; male with two anteriorly directed short pro-
sternal spines, one-half longer than the thickness of the anterior femora in
the type, and separated by a very deep circular cavity, the abdomen medio-
basally angularly impressed and finely, densely punctate, with smooth
bottom line and also with some long brown hairs on the second segment at
the middle of the base, not present in /atitibia, where, however, the corre-
sponding area is finely punctured; hind tibie inflated and convex, more
strongly punctured than in Jatitibia; female with the abdomen broadly,
feebly impressed, sharply so medially at base and coarsely, sparsely punctate
and clothed with very long subdecumbent hairs distally on first segment,
these extending to the second segment. Length 6.0-6.2 mm.; width 3.7-3.8
mm. Brazil (Tijuca). November. A single pair........ atromicans n. sp

Medio-basal abdominal characters relating to punctuation, im-
pression and vestiture peculiar to each sex, are also observable in

BRAZILIAN BARINAE . 219

Valliopsis and Anavalius, but nowhere to so pronounced a degree
as here, and the hind tibize are not materially modified sexually in any
other genus, so faras known. The abdominal characters in the type
of convexa are extremely remarkable for the female, if I have correctly
identified that sex, where such very distinctive modifications are
very rare in the Barine.

Revena n. gen.

The body in this genus is also rhombic-suboval, black and gla-
brous, except that each of the strong punctures of the under surface
bears a minute whitish squamule, and the upper surface is distinctly,
sparsely punctate, the prothorax relatively much larger, distinctly
but less abruptly tubulate at apex, the constriction not marked
by very coarse punctures as in some species of the preceding
genus; the intervals between the coarse elytral grooves are not
exactly flat, though nearly so. The beak is rather long and slender
and differs greatly in the sexes, being nearly straight, very slender
and smooth, abruptly inflated and coarsely, closely punctate behind
the subbasal antenne in the femaie, and subevenly, moderately
arcuate, not so slender, more sculptured and only feebly inflated
basally in the male; it is not separated from the head by a transverse
impression of any kind, and the mandibles are rather stout but
prominent when closed and with straight, even inner margins. The
antenne are at basal fourth (@) or barely beyond (<7), long and
slender, all the funicular joints elongate, the first greatly so, the
second but little shorter and as long as the next two, the seventh
more elongate than the sixth and obconic, the club small, with
large basal segment and conically pointed, not as long as the two
preceding joints (@), a little longer (o). The anterior coxe are
separated by their own width, the prosternum flat, broadly and
feebly, medially impressed anteriorly, and it is nearly similar in
the sexes. The abdomen is simply impressed medio-basally in both
sexes and similarly sparsely punctate, but the impression isa little
larger in the female. The two species now before me are as follows:

Form rhombic-suboval (@) or regularly oval (oo), deep black and shining, the
elytra feebly alutaceous in the female; beak (0) as long as the head and
prothorax, evenly and moderately arcuate and strongly sculptured, or (?)
nearly straight, smooth, very slender, dilated and sculptured at base and
distinctly longer; antenne long, slender, the scape only a little longer than
the first funicular joint; prothorax a fifth (2) to a fourth (co) wider than
long, the sides moderately converging and very evenly, moderately arcuate
from base to the constriction, the apex two-fifths as wide as the base (0%),
less (2); basal lobe very gradually cuspidiform, with narrowly obtuse apex;
punctures fine and remote, coarser in the broad constriction, also at the
extreme sides and along the basal margin; scutellum wider than long,
truncate, smooth and feebly impressed, distinctly obtrapezoidal, the oblique
sides slightly arcuate; elytra a fourth (o) to a third (2) longer than wide,

220 ‘ MEMOIRS ON THE COLEOPTERA

the oblique sides broadly arcuate, the apex sharply ogival (9) or obtusely
rounded (<7), only a little wider than the prothorax and three-fourths
longer, the humeri slightly prominent; grooves sharply marked but not very
deep, catenulate and rather more than a fourth as wide as the intervals,
which are finely but distinctly, sparsely and unevenly punctate; both sexes
with a finely, sparsely punctate and medially impressed basal abdominal
segment, the impression smaller, rather narrower and relatively deeper in
the male. Length 6.4-7.0 mm.; width 3.7-3.8 mm. Brazil (Chapada—
campo). October and December. Four specimens.........sexualis n. sp.
Form narrower, the size slightly smaller, general characters similar; beak (<7)
rather longer and more slender, evenly and moderately arcuate, much longer
than the head and prothorax, less distinctly thickened basally, the antenne
similarly long, slender and rufo-piceous, the basal segment of the club
relatively smaller than in the male of the preceding; prothorax shorter, a
third wider than long, the sides converging and nearly straight to about the
middle, then gradually rounding to the nearly similar feeble constriction and
oblique tubulation; punctures nearly similar but sparser throughout, the
apex of the basal lobe somewhat more obtusely rounded; scutellum smaller,
smooth, less impressed and slightly wider than long, its sides parallel and
arcuate; elytra nearly similar in form and relationships, only a fifth longer
than wide and parabolic, nearly four-fifths longer than the prothorax;
grooves similar but with more close-set catenulation, the intervals narrower,
with much finer and still sparser punctulation, the punctures for the most
part in single uneven lines; abdomen with a broader, sparsely, finely punctate
basal impression than in the preceding. Length 5.8 mm.; width 3.2 mm.
Brazil (Chapada—campo). December. One male specimen.....remota n. sp.

Remota can be distinguished easily from sexualis by the narrower
outline, different form of the thoracic sides and of the scutellum,
longer beak and sparser and finer interstitial punctures, besides a
broader form of the abdominal impression in the male. The hind
tibize are a little longer, narrower and smoother in the male than
in the female, just the reverse of the differences seen in Macrorevena,
and the very much longer and more slender antenne are radically
different, as well as the prosternal characters.

Selasella n. gen.

In this genus the size is very moderate, the body broad anteriad,
tapering posteriad and somewhat strongly convex and _ polished.
The beak is evenly and distinctly arcuate and almost similar in
the sexes, being merely a little less slender in the male, the antennal
scrobes moderately oblique, the scape rather short, not quite
attaining the eye and the funicle slender, with its basal joint notably
long, being equal to the next three, the second also elongate and
almost as long as the succeeding two, the club rather large, oval,
somewhat abrupt, longer than the preceding four joints, with its
first segment much less than half the mass. The broad flat pro-
sternum separates the coxz by fully one-half more than their width,
having, anteriorly, just behind the transverse constriction, a feeble
impression; between the small triangular erect pointed plates of

BRAZILIAN BARINZE 25

the male, which are widely separated, the surface is broadly and
feebly concave, opaque, impunctate and glabrous, having anteriorly
a small fovea at some distance from the apex; the part behind the
coxe is very broadly truncate. The legs are notably long and
slender, the tibie slightly bent at base and the ungues moderate.
The unique type is as follows:

Selasella cuneipennis n. sp.—Stout, convex, polished and deep black through-
out; upper surface glabrous, the elytra with a few slender white squamules along
the intervals at base, more evident near the scutellum, and also with very few on
the fifth interval at some distance behind the middle; beneath each puncture
bears a more or less minute and inconspicuous squamule, dense and conspicuous,
however, on the met-episterna; beak ( 9 ) as long as the elytra, very little shorter
(%), subcylindric, shining, loosely seriato-punctate and glabrous, the antenne
piceo-rufous; prothorax large, not quite a third wider than long, the sides feebly
converging and just visibly arcuate, rounding in about apical two-fifths to the
oblique tubulation, which is much less than half as wide as the base in both sexes;
surface smooth, with a few moderate punctures at the extreme sides and on the
tubulation; basal lobe rapidly formed, with its apex deeply and narrowly sinuate;
scutellum quadrate, flat and free; elytra between a third and fourth longer than
wide, at the feebly prominent humeri only slightly wider than the prothorax and
scarcely one-half longer, the strongly oblique sides feebly and evenly arcuate,
the apex not very narrowly though strongly rounded; grooves sharply marked,
deep and smooth, a third as wide as the intervals, which have each a single series
of moderate punctures; male abdomen somewhat finely, sparsely punctured, not
distinctly impressed or modified at base. Length 3.5-3.65 mm.; width 1.8-1.85
mm. Brazil (Santarem). Two specimens.

This is a very distinct species, readily identifiable by the widely
separated anterior coxe, broad flat prosternum and very notable
prosternal characters of the male.

Clandius n. gen.

The species of this genus are very much smaller than in the
genera of this section preceding Selasella, convex, with large protho-
rax and are more or less herissate with sparse slender squamules.
The beak is moderately thick, densely sculptured at the sides,
sparsely punctate and usually with two series of punctures medially
above, the series sometimes impressed; it is straight, bending more
or less at the extreme base and is separated from the convex head
by a very shallow impression. The mandibles are straight within
and prominent when closed, but they are short and somewhat
obtuse at apex; the antennz are very slightly behind the middle,
rather short, the funicle slender, its first joint as long as the next
three, 2-7 small, subequal, the club elongate-oval and abrupt,
about as long as the five preceding joints, with its first segment
somewhat more than half the mass. The anterior coxe are well
separated, the prosternum distinctly canalate, and the hind tibize
are slender and much shorter than the femora. The head is un-

222 MEMOIRS ON THE COLEOPTERA

usually large, the prothorax broadly and not very abruptly tubulate
at apex and finely beaded along the basal margin, the scutellum
small, flat and but slightly free, and the elytra are abruptly grooved.
The male is not certainly identifiable among my three unique types
and I can perceive no abdominal or prosternal sexual characters.
The three species known to me are the following:

Elytral grooves fine, smooth, only about a fifth as wide as the intervals. Body
oval, strongly convex, shining, black, the upper surface bristling with long
dark sparse erect hairs, almost uniformly distributed, rather confused along
the strial intervals, the under surface with short and subdecumbent, even
sparse whitish squamules; beak in the probably female type as long as the
head and prothorax, thick, arcuate, somewhat compressed and coarsely,
closely sculptured in about basal, gradually thinner, smoother and cylindric
in distal, half, the antennz rufo-piceous; prothorax somewhat more than a
fourth wider than lpng, the sides evenly and rather strongly arcuate, becoming
subparallel basally, the tubulation half as wide as the base, the head but
little narrower; punctures rather fine and well separated, somewhat stronger
and closer laterally; basal lobe moderate, gradually formed and evenly
rounded at apex; scutellum small, flat, subquadrate and sculptured; elytra but
little longer than wide, rapidly parabolic, only very slightly wider than the
prothorax and one-half longer; humeri small and feebly prominent; intervals
wide and flat, finely, loosely and rather confusedly punctulate; abdomen
evenly convex and loosely punctulate in the type. Length 3.25 mm.; width
1.75 mm. Brazil (Santarem). A single specimen.......... hystrix n. sp.

Elytral grooves coarser, a third to half as wide as the intervals............... 2

2—Body shorter and more broadly oval, polished, black, the erect pronotal
bristles extremely short and sparse, those of the elytra remote in single inter-
stitial lines and fine, suberect and dark, with a few whitish basally and
apically; they are very small, sparse and whitish beneath; beak rather thick,
dull, perfectly straight, feebly and subangularly bent at the extreme base,
distinctly longer than the head and prothorax, the antenne piceous; prothorax
a fourth wider than long, the sides slightly converging and feebly arcuate,
rounding rapidly near the apex to the gradual tubulation, which is only a
little wider than the head and much more than half as wide as the base; punc-
tures minute and remote coarser but still rather sparse laterad; basal lobe,
short, gradual, strongly rounded at tip; scutellum small, flat, smooth and
subquadrate; elytra barely visibly longer than wide, rapidly parabolic, only
slightly wider than the prothorax and less than one-half longer; grooves half as
wide as the intervals to more, the interstitial punctures small and well sepa-
rated in single series; femora coarsely, longitudinally and densely punctato-
rugose, much longer than the narrow hind tibia, which are rapidly bent at
base; abdomen convex, moderately and closely punctate. Length 2.8 mm.;
width 1.55 mm. Brazil (Santarem). One specimen...... cephalotes n. sp.

Body smaller and much narrower, rather shining, black, the prothorax obscure
rufous; beak and antenne nearly similar; prothorax similarly somewhat
strongly convex as viewed in lateral profile, rather shorter, almost a third
wider than long, the sides almost parallel, feebly arcuate, rounding apically
to the very broad and gradual tubulation, fully four-sevenths as wide as the
base, the head notably large; punctures a little stronger, sparse, becoming
more notably coarser and close laterad, the lobe and scutellum almost
similar; elytra barely longer than wide, parabolic, the sides less oblique than
in the preceding and the apex rather more obtusely rounded, only very
little wider than the prothorax and one-half longer, the grooves scarcely so

BRAZILIAN BARIN 223

coarse and more obviously punctate but otherwise nearly similar; interstitial
punctures distinct, well spaced in single series and bearing suberect and dark,
mingled with a few longer, paler and hair-like, squamules, those of the
pronotum as in cephalotes; legs almost similar but with relatively longer
hind tibia; abdomen convex, the punctures more widely separated. Length
2.6 mm.; width 1.25 mm. Brazil (Chapada). March. One specimen.
seriatus n. sp.

With the scanty material at hand I am unable to discover any
sexual modifications in this peculiar genus.

Peclaviopsis n. gen.

The body in this genus is of rather small size, elongate-suboval,
only moderately convex and strongly sculptured, the vestiture
sparse. The beak is thick, only feebly arcuate, compressed and
strongly sculptured; it is separated from the head by a large and
deep reéntrant angle. The mandibles are perfectly straight inter-
nally and are somewhat narrow, though with blunt apex, the
terminal lobe of the upper surface of the beak unusually long,
rounded. Antenne short, medial, the first funicular joint as long
as the next three, 2-7 shorter than wide, gradually broader and
rather compact, the club oval, conically pointed and with large
basal segment; it is moderately abrupt in formation and more
than half as long as the funicle. The prosternum is flat, strongly
punctate, somewhat widely separating the coxa and with a small
smooth fossa at apex. The hind tibiee are much shorter than the
femora, narrow and bent at base, the tarsi peculiar, with short first
two joints and deeply incised third joint, this being especially large
and with two elongate lobes in the anterior tarsi of the male. The
prothorax is not definitely tubulate at apex, the apical constriction
broad and very feebly marked above. The type is as follows:

Peclaviopsis planipectus n. sp.—Elongate, oblong-suboval, deep black and
shining; squamules small, whitish, sparse at the sides of the pronotum and a
little larger, closer and more distinct beneath; on the elytra they are hair-like
and suberect, dark, whiter toward the suture and in single loose series; beak as
long as the head and prothorax, feebly arcuate, somewhat thicker, also more
declivous apically above, in the male, strongly, closely punctured at the sides
behind the antenne, more finely and sparsely elsewhere; antenne blackish;
prothorax but feebly convex in lateral profile, only a fourth or fifth wider than
jong, the sides very feebly convergent and but slightly arcuate, more rounded at
apex, the latter truncate and fully half as wide as the base; punctures strong
and deep but rather widely separated, close and coarser at the sides; basal lobe
very short, gradually formed, its obtuse apex with a feeble medial sinus; scutel-
lum small, free, flat, subglabrous, sinuate at apex and quadrate; elytra a fourth
longer than wide, obtusely oval, the sides nearly parallel basally, a fourth wider
than the prothorax and twice as long, the humeri scarcely prominent, oblique
basally; grooves coarse, strongly punctate at the bottom, rather more than half
as wide as the intervals, the punctures of the single interstitial series moderate
and somewhat well separated; abdomen convex, rather closely and strongly

224 MEMOIRS ON THE COLEOPTERA

punctate. Length 3.0-3.4 mm.; width 1.5-1.7 mm. Brazil (Chapada—forest).
November. Eight specimens.

The sexual characters in this species are very slight, amounting
only to a slight difference in the thickness of the beak and third
anterior tarsal joint. The abdomen sometimes has a very feeble
impression along the median line, but this may occur in either sex
and there is absolutely no apparent sexual modification of the
prosternum.

Peclavia n. gen.

This is another very peculiar but monotypic genus. The body
is almost evenly elliptic, polished and with slender erect dark
bristling squamules, loosely unseriate on the elytra and very small,
sparse, whitish, decumbent and inconspicuous beneath. The beak
is very slender, straight, smooth and somewhat flattened in apical
half, bent at the middle and thence gradually thicker, nearly straight
and closely punctured to the base, not separated from the strongly
convex head by a transverse impression. The mandibles are very
small, straight within, forming a right angle when closed. The
antenne are at two-fifths, slender, the funicle loose, with all the
joints at least as long as wide, the first almost as long as the next
three, the second also somewhat elongate, the club small, abrupt,
evenly oval and somewhat longer than the three preceding joints;
the prosternum rather widely separates the coxz and is moderately
deeply sulcate, the sides of the sulcus obtusely prominent, gradually
a little more so toward the coxe and closely punctate. The pro-
thorax is without trace of apical tubulation, the elytra coarsely
grooved and the hind tibiz slender and much shorter than the loosely
punctured femora. The type is as follows:

Peclavia hispidicollis n. sp.—Oval, deep black and polished; beak as long as
the head and prothorax; antennz very slender, dark red-brown; prothorax fully
a third wider than long, the sides broadly arcuate, more oblique anteriorly and
subparallel toward base, the truncate apex less than half as wide as the base;
punctures strong, deep and separated by about twice their diameters, coarser
but only a little closer laterally, the erect hairs rather long and bristling; basal
lobe small, with the truncate apex medially sinuate; scutellum obtrapezoidal,
flat, one-half longer than wide, free; elytra evenly and broadly elliptic, with
somewhat strongly rounded apex, distinctly wider than the prothorax and about
twice as long, the humeri slightly swollen but not prominent, oblique basally;
grooves deep, abrupt, distinctly punctured along the bottom, half as wide as the
inner intervals but two-thirds as wide as the outer; single interstitial series
composed of rather small, well separated punctures; abdomen strongly, evenly
convex in the type, with moderate and slightly separated punctures. Length
3.8 mm.; width 2.1 mm. Brazil (Santarem). One specimen—probably female.

Easily recognizable by the numerous erect bristling hairs, almost
evenly elliptic outline, convex surface and coarse elytral grooves.

BRAZILIAN BARIN 225

Microzalestes n. gen.

In some respects this likewise monotypic genus somewhat re-
sembles the last, but it differs in its completely glabrous surface
above and beneath, relatively large prothorax and very feeble sculp-
ture. The beak is evenly arcuate, very slender, cylindric and
smooth beyond the subbasal antenne, rapidly dilated but smooth
and finely punctate in a little more than basal fourth, separated
from the head by a narrow and feeble reéntrant angle, and with the
mandibles short, straight within and angulate when closed. Anten-
nz near basal fourth, moderate in length, with extremely short
scape, the first funicular joint about as long as the next three, the
club oval, abrupt and large, about as long as the five preceding
joints. Prosternum strongly, evenly canalate, widely separating
the coxe. Legs rather short and slender, feebly sculptured, the
hind tibize not notably short, the claws small, strongly arcuate and
free. The prothorax is not tubulate at apex and the strie are
grooved but notably fine. The type is the following:

Microzalestes basalis n. sp.—Oblong-subrhombic, strongly convex, smooth,
black and polished; beak rather longer than the head and prothorax, the antenne
piceous; prothorax large, a third wider than long, the feebly convergent sides
slightly arcuate, more rounding and oblique anteriorly; apex less than half as
wide as the base; surface very smooth, not at all punctate; basal lobe small,
somewhat abrupt, its broadly rounded apex with a very minute medial sinus;
scutellum flat, small, moderately free, rather narrower than long and almost
rounded; elytra triangular, scarcely a fifth longer than wide, only very slightly
wider than the prothorax and three-fifths longer, the oblique sides broadly arcuate,
the apex somewhat narrowly rounded; grooves narrow, scarcely a sixth as wide
as the smooth flat intervals; abdomen highly polished, finely and sparsely
punctured. Length 2.7 mm.; width 1.6 mm. Brazil (Santarem). One female
specimen.

There can be but little doubt relating to the identification of
this species, the feebly subrhombic outline, large prothorax, gla-
brous surface and finer elytral striation being distinctive. The beak
in the male probably differs notably from that of the female de-
scribed above.

Remertus n. gen.

This genus, also represented at present by a single species, has a
highly specialized structure and distinctive appearance. The body
is elongate-oval, partially clothed with decumbent ochreous scales,
the prothorax relatively larger than in any other genus of the group,
gradually and moderately tubulate at apex, the legs sparsely punc-
tured and the tibie densely fimbriate within in the male. The
beak differs greatly in the sexes and in the male is evenly and
feebly arcuate and tapers very gradually from base to apex, very
slender distally but dorsally flattened; in the female it is perfectly

T. L. Casey, Mem. Col. X, Aug. 1922.

226 MEMOIRS ON THE COLEOPTERA

straight, tapering rapidly from base to the middle and thence very
smooth, slender and dorsally flattened to the apex; it is not separated
from the head by any kind of an impression and the mandibles are
long, with their inner margins straight. The antenne are medial
(o) or slightly behind the middle (9) and are moderately long,
the first two funicular joints notably elongate, the second slightly
the shorter and the remainder all short, the seventh much larger
and more pubescent in the male, the club small, very short and
virtually globular and only about as long as the two preceding.
The prosternum is very flat and even throughout in both sexes,
the coxe remote, separated by almost twice their width. The
scutellum is subtransverse, nearly quadrate, rather convex and
glabrous, the elytra with punctured grooves. The tarsal claws are
widely divergent, arcuate and free. The type is as follows:

Remertus marginatus n. sp.—Elongate-oval, with slightly prominent humeri,
black, convex, the beak densely sculptured and squamulose basally, the pronotum
glabrous and shining, with an abrupt dense entire marginal vitta of ochreous
scales; elytra glabrous, but with the bases of all the intervals clothed with dense
ochreous scales, these covering apical half of the second, the median part of the
third, extending throughout the fourth to apical fifth and, on the eighth, from
the humeri to the sutural angle; strong punctures of the under surface each with
a small whitish squamule, these longer and dense on the outer part of the meso-
sternum and outer part of the met-episterna; on the inferior thoracic flanks the
ochreous scales descend at apex nearly to the middle, and there is a vitta of
whiter scales just outside of the coxz; beak (co) as long as the head and pro-
thorax, relatively slightly longer (9), the antenne piceous; prothorax (0)
feebly convex in profile, virtually as long as wide, with arcuate sides, gradually
less so and subparallel behind the middle, the apex a little more than a third as
wide as the base, the surface finely, sparsely punctate, the basal lobe rather
broadly but prominently rounded, more strongly, densely punctate and with
convex peripheral surface, or (Q) strongly convex in profile and a fifth or sixth
wider than long, otherwise nearly as in the male; elytra parabolic but strongly
rounded at tip, a third longer than wide, distinctly wider than the prothorax and
three-fifths longer (co), or two-thirds (9); grooves rather coarse, the wide flat
intervals strongly, densely, confusedly and subrugosely punctate; abdomen (<7)
finely, somewhat closely punctulate, with a very deep concavity along the middle
in basal half, or (Q) not impressed and more strongly, much more sparsely
punctate. Length 5.8-6.8 mm.; width 3.0-3.7mm._ Brazil (Chapada—campo).
October. Three specimens.

The remarkable characters of this species and the notable and
diversified sexual differences necessitate the rather long description
given above.

Forandia n. gen.

In its somewhat dense and uniform fulvous vestiture this genus
departs strongly in habitus from any of the preceding, and this
habital difference is supplemented by numerous structural peculi-
arities. The beak is rather short, smooth, cylindric and nearly

BRAZILIAN BARINZ 227

straight, its basal part above roughly punctured, densely clothed
continuously with the flattened front, there being no depression of
any kind separating the two surfaces. The mandibles are rather
long, straight within, prominent when closed and each has, exter-
nally near the base, a broad angular tooth. The antennze are
medial, the joints loose, glabrous and with long sete, the first
funicular elongate as usual, the second also somewhat elongate,
the club large, oval, as long as the preceding six joints, densely
pubescent and subequally trisected by the strong sutures. The
prosternum is flat and closely pubescent, with the apical constriction
fine, the coxee moderately separated. The legs are loosely and not
very strongly punctured and pubescent, the thighs somewhat
inflated. The prothorax is gradually tubulate at apex, the scutel-
lum moderate and densely clothed and the elytral striae coarse and
deep. The type is as follows:

Forandia duplex n. sp.—Oval, convex, densely clothed with thick subdecumbent
fulvous hairs, with a single loose series of longer finer erect hairs along each strial
interval; the hairs of the under surface are uniform, whiter, sparser and shorter
but very distinct; color blackish, the elytra, legs and beak more or less testaceous;
beak ( 9 ) very feebly arcuate, nearly as long as the head and prothorax, cylindric,
minutely, sparsely punctulate, the antenne rufous, with darker club; prothorax
a third wider than long, the arcuate sides subparallel basally, more oblique
beyond basal third to the feeble sinus at the sides of the truncate tubulation,
which is not quite half as wide as the base; punctures moderate, dense throughout,
the median line somewhat prominent; basal lobe moderate, rather strongly
rounded; scutellum free, the vestiture not decumbent; elytra evenly and obtusely
oval, about a fourth longer than wide, distinctly wider than the prothorax and
barely twice as long; punctures of the coarse strie bearing fine squamules, the
intervals strongly, closely and confusedly but not very coarsely punctate and
with single series of coarse but rather indistinct punctures, bearing the erect
hairs; under surface moderately and not densely punctured throughout, the
abdomen convex. Length 5.25 mm.; width 2.8 mm. Brazil (Santarem). One
female example.

Very easily recognizable by the dense clothing of coarse fulvous
hairs; there are no true scales anywhere visible above or beneath.

Melampius n. gen.

While differing profoundly from any of the preceding genera in
habitus, the single representative of this genus recalls somewhat a
large stout Odontocorynus, but it does not accord with it in any
structural peculiarity. One of its chief distinctive features is the
form of the mandibles; these are bilobed apically, with the lateral
rounded lobe differentiated not only by a notch but by an attendant
depression of the surface, the inner lobe is also obtuse but is longer
than the outer; the inner edges are perfectly straight and even
throughout the length; the apex of the beak above the mandibles
is medially sinuate. The beak is rather long and slender, not

228 MEMOIRS ON THE COLEOPTERA

separated from the head by an evident depression. Antenne at
basal third, long and slender; the funicle is loosely jointed and
slender, the first three joints all elongate and very rapidly diminish-
ing in length, the first about as long as the club, which is abrupt,
rhombic-oval and as long as the three preceding joints, the sutures
deep, the first segment rather large and feebly pubescent, the
remainder conical and with fine dense gray hairs. The anterior
coxe are widely separated—by rather more than their own width,
and in the male there are two moderate, oblique and somewhat
twisted spines, separated by a deep circular well. The legs are
coarsely punctured, the femora not swollen. The prothorax is
abruptly tubulate at apex, the scutellum rather small, free and
obtriangular, nude and feebly impressed along the middle, the elytra
very coarsely grooved; the entire surface is coarsely sculptured,
dull and virtually glabrous. The type is the following:

Melampius conifer n. sp.—Oblong-suboval, rather convex, with large prothorax,
black, dull in lustre; beak cylindric, smooth, about as long as the elytra, evenly
and distinctly arcuate, slightly flattened and strongly punctured at the sides of
the base just before the eyes; antennz very slender, black; prothorax fully a
third wider than long, the sides parallel and scarcely arcuate, gradually rounded
and strongly converging beyond about the middle to the tubulation, which is
rather more than two-fifths as wide as the base; surface nude, coarsely but loosely
punctate, the interspaces dull; basal lobe gradual and evenly rounded; elytra
triangular, a little longer than wide, but slightly wider than the prothorax and
one-half longer, the oblique sides broadly and moderately arcuate, the apex
somewhat strongly rounded; humeri slightly prominent; surface feebly shining,
the very coarse and strongly punctured grooves, laterally, as wide as the intervals,
but inwardly much narrower, the intervals with single series of coarse and close-
set punctures, bearing very minute squamules, the base of the second with a loose
cluster of pale squamules, the base of the fourth also with a few; coarse and close
punctures of the under surface each with a minute squamule; abdomen (<)
with a distinct impression along the middle basally, the impression not differently
clothed or punctured. Length 5.8 mm.; width 3.2 mm. Brazil (Chapada—
campo). December. One specimen.

This is one of the more isolated and remarkable of the Brazilian
Barids.

Brachygereus n. gen.

Although two of the essential characters of Gereus—trelating to
the mandibles and antenne—are virtually repeated in this genus,
there are so many peculiarities of structure in the three species
forming what I have called Brachygereus, that there can be little
or no question of generic difference. In Gereus, for instance, the
prosternum has a deep and very pronounced subapical transverse
constriction, and the beak is not or only very slightly flattened
distally, the body is not briefly oval in form but elongate-sub-
rhombic, and the vestiture does not consist of rather broad, parallel

BRAZILIAN BARINZ 229

and closely decumbent scales as here, but of less decumbent, very
fine and hair-like squamules. The species of Brachygereus at pres-
ent known are the following:

Pattern of ornamentation somewhat as in Centrinaspis graphica, being solid
areas of white scales on a black background; prosternum bispinose in the

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2—Form oblong-ovoidal, black, the legs and beak dull rufous; pronotum with
the dense white scales forming a parallel sublateral quadrate spot in basal
half, also with some less dense and less decumbent along the apex and entire
median line, the dense white scales of the elytra forming a semicircular scutellar
spot, and, on each elytron, a solid quadrate spot behind the middle on intervals
2-4 and separated from the scutellar area by nearly twice their length;
sides with looser white squamules; entire under surface with very dense
white scales; beak in both sexes rather thin, smooth, moderately and evenly
arcuate, gradually slightly thicker at base and about as long as the elytra,
the antennz slender, rufous, medial (2), a little beyond (<7), the first two
funicular joints very long and equal, the club abrupt, oval, subequally
divided by the distinct sutures; prothorax rather short, one-half wider than
long, the strongly arcuate sides becoming subparallel basally; apex scarcely
at all tubulate and less than half as wide as the base; punctures coarse and
dense; scutellum small, glabrous and impressed; elytra parabolic, somewhat
narrowly rounded at tip, rather over a fourth longer than wide, about twice
as long as the prothorax; grooves rather coarse and deep; fine dark squam-
ules nearly black; male with the abdomen feebly impressed and a little less
squamose at base, the prosternum with two very slender erect processes,
scarcely one-half as long as the prothorax and widely separated, the inter-
vening surface flat and not at all modified. Length 3.2-3.4 mm.; width
1.55-I1.7 mm. Brazil (Santarem). Three specimens........ bellulus n. sp.
Form, ornamentation and general structure almost similar, but the discal white
areas of the elytra are larger and are separated from the large scutellar
region by only half their length; beak (9) nearly similar but longer, dis-
tinctly exceeding the elytra, the antennz similar; prothorax nearly similar
but with the sides less inflated, being convergent, evenly and much more
feebly arcuate from base to apex; parabolic elytra almost similar but shorter,
with even more narrowly rounded apex and similarly reéntrant sutural
angle, not quite twice as long as the prothorax. Length 3.3 mm.; width
1.7mm. Brazil (Chapada—campo). October. One female example.
pergratus n. sp.
3—Body rather stout, ovoidal, black, with dull rufous legs and apical part of the
beak; scales above parallel and rather wide, not extremely dense, being
narrowly separated as a rule, uniform brownish-white in color, those of the
pronotum often fulvescent except laterally; they are wider, very dense and
white throughout beneath; beak (<”) evenly and moderately arcuate, rather
thick, scarcely as long as the head and prothorax, sparsely punctate, squam-
ulose at the extreme base, or ( 2) more slender, longer, evidently longer than
the head and prothorax, strongly arcuate basally but thence almost straight
to the apex; antennz slender, rufous, medial ( 2) or distinctly beyond (<7);
first funicular joint as long as the next two, the second relatively much shorter
than in the two preceding; prothorax short, one-half to three-fifths wider
than long, inflated, the sides strongly arcuate, becoming subparallel basally;
apex slightly (2) or much (<7) less than half as wide as the base; punctures

230 MEMOIRS ON THE COLEOPTERA

moderately coarse, not very dense; scutellum slightly transverse, sparsely
squamulose; elytra a fourth to third longer than wide, parabolic, the sutural
angle not reéntrant, twice as long as the prothorax, less (o) and barely
visibly wider; grooves somewhat coarse and deep; squamules generally
forming two uneven series, more confused suturally; male with the abdomen
very feebly impressed basally, the fifth segment subglabrous medially.
Length 3.3-3.7 mm.; width 1.7-1.85 mm. Brazil (Chapada). March and
November, ‘Seven specimens-. 95 a2 -ncre en eee ioe laxatus n. sp.

In Gereus senilis, the base of the much less abbreviated prothorax
is broadly but distinctly bisinuate; contrarily in all the species of
Brachygereus the base is transversely rectilinear, the median lobe
small and gradually formed. In this genus it would almost seem
that we have to deal with cases of mimicry with certain Centrinaspid
types as mentioned.

Forandiopsis n. gen.

In vestiture the single species of this genus recalls Forandia to
some extent, though it is much less coarse, dense or conspicuous,
and it also is distinguished, as in the two preceding and two follow-
ing, by peculiarities of mandibular structure. Here the mandibles
are straight within throughout the length, but the inner apical part
is abruptly narrowed and rather acute, the broad basal part obliquely
straight externally, angulate at about the middle and connecting
with the slender apical part by a short straight transverse line;
the end of the beak above the mandibles has a very small triangular
median notch. The beak is cylindric and not separated from the
head by a depression. Antennze medial, moderate, rather slender
and loosely jointed, the first funicular joint as long as the next two,
the second much narrower, slightly elongate, the club large, oval,
very abrupt, subequally trisected by the sutures and as long as the
five preceding joints. Prosternum flat, moderately separating the
coxee, evenly squamulose, the apical constriction fine. Legs rather
short. Prothorax not tubulate at apex, the scutellum small, free,
transversely subquadrate, slightly impressed, sinuate and glabrous
but with fine sculpture. The eyes are noticeably smaller than
usual. The single type is the following:

Forandiopsis carinulata n. sp.—Oval and rather convex, not shining, pale red-
brown in color throughout; squamules yellowish, long, slender and hair-like,
decumbent, evenly and loosely distributed over the pronotum, closer and confused
over the strial intervals, these also each with a single loose series of erect hairs,
the vestiture throughout shorter and less dense than in Forandia duplex; beneath,
the broad hairs are nearly similar but sparser, dense on the prothorax; beak and
head almost glabrous, the former rather slender, cylindric, evenly, moderately
arcuate and very slightly swollen at the extreme tip, shining and minutely,
sparsely punctulate, with a few fine squamules just before the eyes, the head
convex and densely punctate; prothorax two-fifths wider than long, the sides
broadly arcuate, oblique anteriorly, subparallel basally; apex truncate and half

BRAZILIAN BARIN2 2am

as wide as the base; surface moderately but very densely and subconfluently
punctate, the median line smooth and finely carinulate; elytra evenly elliptic,
rather strongly rounded at apex, a fifth longer than wide, nearly a third wider
than the prothorax and about twice as long, the humeri very slightly prominent;
striz coarse and deep, the punctures indistinct, bearing fine squamules; intervals
about twice as wide as the striz, densely and confusedly punctate; abdomen
strongly convex, somewhat closely punctate and unmodified basally in the type.
Length 3.6 mm.; width 1.8 mm. Brazil (Chapada—forest). November. A
single female specimen.

This genus is undoubtedly rather closely allied to Forandia, but
the body is much smaller, with differently sculptured and pubescent
head and basal parts of the beak, much smaller eyes, different
mandibles and thoracic apex, very different scutellum, though with
similar basal thoracic lobe and, finally, the femora in Forandia are
rather strongly inflated; they are wholly uninflated here. At the
same time, it may be found expedient to unite the two genera as
subgeneric groups eventually.

Centrinaspidia n. gen.

The body here is small, rhombic-oval, clothed loosely and very
evenly with small slender whitish squamules, broader, closer and
more conspicuous on the under surface and especially broad and
dense on the met-episterna. Beak in the female very slender,
smooth and shining, dilated apically and rapidly thick and strongly
sculptured basally, the mandibles somewhat as in the preceding
but with the even inner edges slightly arcuate distally, the apex
acute and the outer angle beyond the middle feebler and more
obtuse, the apex of the beak above the mandibles broadly and
sharply angulate, not medially notched as in Forandiopsis; it is
separated from the”head by an extremely feeble depression. An-
tennze between basal third and fourth, with loosely jointed and
slender funicle, having the first joint as long as the next two and
thicker, the second and third also elongate, the club abrupt, oval
and nearly as long as the four preceding joints. Eyes well devel-
oped. Prosternum flat, squamose, separating the coxe by half their
width. Femora slender, the prothorax not tubulate at apex, the
scutellum small, oblong, sculptured, subglabrous, sinuate at apex
and narrowly canaliculate, the elytra deeply grooved. The type
is as follows:

Centrinaspidia mundula n. sp—Rhombic-oval and slightly shining, convex
and deep black throughout; beak (2) subevenly and moderately arcuate, a
fourth longer than the head and prothorax; antenne piceo-rufous; prothorax
two-fifths wider than long, the sides moderately converging, broadly and sub-
evenly arcuate from base to apex, the latter truncate and distinctly less than
half as wide as the base, the basal lobe small, rather strongly rounded; surface
strongly, very evenly and densely punctate, with a narrow flat median impunctate

2322 MEMOIRS ON THE COLEOPTERA

line; elytra triangular, fully a third longer than wide, fully a fourth wider than
the prothorax and much more than twice as long, the oblique sides broadly,
subevenly arcuate, the apex narrowly rounded; humeri small but distinctly
prominent; grooves about half as wide as the intervals, which are strongly,
densely, confusedly and somewhat asperately punctate; abdomen gradually
rather pointed, moderately convex and evenly, strongly and densely punctate.
Length 2.8-3.0 mm.; width 1.35-1.5 mm. Brazil (Chapada—forest). Novem-
ber. Two female examples.

One of these female examples is notably broader than the type,
with less cuneiform elytra and somewhat broader strial intervals, but
they appear to be exactly similar otherwise.

Microbaridia n. gen.

The type of this proposed genus would have been placed as a
very small slender Centrinaspis, were it not for the mandibles,
which seem to be radically different, for, instead of being in close
contact along the entire extent of their straight inner edges, as in
that genus, the even inner edges are here arcuate and diverge
rapidly from base to apex, they being in contact when closed only
in about basal half, and the outer edge is broadly sinuate through-
out; the mandibles are also unusually narrow in form, the apex
of the beak above them broadly, evenly rounded. The antenne
are behind the middle and are nearly as in Centrinaspis, but the
outer joints of the funicle are rather rapidly broader, the club
moderate, oval and not abrupt. The prosternum is flat and
densely squamose, as is also the free scutellum, and the anterior
coxe are moderately separated. The general structure is as in
Centrinaspis, and there are no ante-coxal spines in the male. The
type is as follows:

Microbaridia delicatula n. sp.—Rather narrowly rhombic-oval, piceo-rufous,
not at all shining; scales parallel, yellowish or whitish, loosely placed and trans-
verse on the pronotum, rather closer broadly toward the sides and along the
middle, somewhat close on the strial intervals, but almost wanting for a short
distance on the fourth and sixth before the middle and inconspicuous medio-
apically, a little broader, dense and conspicuous throughout the under surface;
beak (7) slender, evenly cylindric and evenly arcuate, a little longer than the
head and prothorax, or ( 9) one-half longer than the head and prothorax, evenly
and moderately arcuate, very slender, becoming gradually thicker basally; pro-
thorax a third to fourth wider than long, the sides nearly straight, feebly con-
verging, more oblique in apical two-fifths, the truncate apex not tubulate and
much more than half as wide as the base; punctures moderate and very dense
throughout; elytra triangular, with arcuate sides and rather narrowly rounded
apex, more than a fourth longer than wide, nearly a fourth wider than the pro-
thorax and distinctly more than twice as long, the intervals densely, confusedly
punctate, alternating somewhat in width, as wide as the coarse strie to nearly
twice as wide; abdomen densely squamose throughout in both sexes, very feebly
impressed medially toward base in the male. Length 1.8-2.6 mm.; width
0.8-1.2 mm. Brazil (Chapada—forest). On flowers in clearings. May and
November. Thirteen specimens.

BRAZILIAN BARIN 233

This species may be identified readily by its small size, peculiar-
ities of vestiture and coarse elytral striation, besides the singular
form of the mandibles.

Centrinaspis Csy.

The rhombic-oval body in this genus is small to minute in size,
and all the species are clothed at least in part with narrow squam-
ules, often forming a conspicuous design on the elytra. The beak
is long to rather short, evenly arcuate as a rule and is separated
from the head by a very feeble to deep and conspicuous reéntrant
angle; the mandibles are straight within and prominent when
closed, but they vary from notably long to very short in form.
The antenne are generally notably slender and are medial in
insertion, the club abrupt and more or less elongate-oval. The
prosternum is squamose throughout, flat to very feebly longitudinally
impressed and the coxe are moderately separated. Sexual differ-
ences are usually slight, but become remarkably pronounced in
some species, such as le@vicollis.

The species are very numerous and are distributed probably
almost throughout North and South America. The Central Amer-
ican forms were all placed under the generic name Gereus Pasc.,
by Mr. Champion, but there are two very important and constant
structural differences between the two genera. In Centrinaspis the
first funicular joint alone is notably elongate, being equal to the
next two to three, the second only moderately elongate, and the
mandibles are unmodified externally, while in Gere@us the first two
of the funicular joints are notably elongated and the mandibles
are dentate externally near the base.

The Brazilian species are assignable to six groups of subgeneric
nature as follows:

Male prosternum bispinose before the anterior coxe.................2.--05- A
Male prosternum strongly ascending from the coxe to the apex and wholly de-
void of spiniform processes; sexual characters very feeble..............- B

A—Scales of the upper surface broader, densely aggregated and generally nearly
white in two or three usually interrupted pronotal vitte and, on the elytra,
in a more or less angulate common basal area and on each a post-median
area, often attaining the suture and sometimes united with the basal area,
also sometimes with sublateral vitte, the ground scales usually inconspicuous,
but sometimes paler and abundant, uniting the dense areas, which then
become rather vague; prosternal spines of the male always moderate... ..I

Scales of the upper surface somewhat narrower and ochreous to whitish, very
uniform in size and density and more or less densely covering the entire
surface; male prosternal spines small or moderate and erect; beak rather
long, slender and strongly arcuate in both sexes; body frequently minute

Scales of the upper surface narrow and slender, always well separated and fre-
quently sparse, forming two or three loose vitte or sparsely scattered and
sometimes almost wanting on the pronotum, arranged usually in short loose

234 MEMOIRS ON THE COLEOPTERA

lines on some of the interstrial intervals, and with others sparsely scattered
on the surface; prosternal spines of the male short to unusually long,
conspicuous and extending beyond the head; sexual differences occasionally
very marked >" beakerathemlono:. nen ss sce eee ete eee Ill
Scales of the upper surface uniform and narrow, dense and fulvous over the entire
pronotum, white in an even narrow sutural vitta on the elytra; beak long;
antenne very long; prosternal spines of the male short............... IV
B—Scales slender, fulvous, uniform and close on the pronotum, whitish, scattered
and forming uneven broken lines on the elytra; antenne long, the club
unusually long, especially in the male; anterior coxe unusually widely
Separated sbielbeakalonesand smi OOtiei ieee iierae rs riinen eee ner V
Scales parallel but wider as a rule, usually whitish or ochreous and dense over
the entire upper surface, except rarely in denuded sutural or subsutural
areas posteriorly; antenne slender, with shorter club, the beak moderately

long to notably short; body moderate to minute in size................ VI
I—Squamules of the darker parts of the elytra fine, blackish and more or less
INCOMSPICUO USE, oe. 9 Meee bi e.k o> ir ce Seer COTES Cy ieee eens ee eee ae 2
Squamules of the entire elytra broader in form and dense..................- 12

Squamules of the entire upper surface large, parallel and conspicuous, though
not dense, white, with a few brownish intermingled on the pronotum medi-
Cl see ee rn st ee ee ak sete ea aad ceases otc 16

2—Pale scales of the elytra toward the sides forming only a narrow vitta along
the sixth interval in basal half. Body rhombic-oval, deep black, the pale
scales whitish, forming three vitte on the pronotum and, on the elytra,
besides the sublateral, forming a vitta along the first interval in basal half,
the second from base nearly to apex, and on the third and fourth in a short
line just behind the middle, the entire under surface densely squamose, the
legs more finely and loosely; beak (9) slender, strongly arcuate, almost
three-fourths as long as the elytra; antenne moderate in length and nearly
black; prothorax only a fourth wider than long, the converging sides evenly
and moderately arcuate throughout to the truncate apex, about half as wide
as the base; punctures strong and dense, the lobe short, gradual and broadly
rounded; elytra a fourth longer than wide, with oblique and broadly arcuate
sides and rather narrowly rounded apex, with slightly reéntrant sutural
angle, wider than the prothorax and three-fourths longer; intervals strongly,
closely, confusedly punctate and fully three times as wide as the strie.
Length 2.8-2.9 mm.; width 1.4-1.6 mm. Brazil (Chapada). -March and

November." Two female-examples) Yo Rye >) oe 2 ae australis n. sp.
Pale scales more or less loosely and confusedly scattered toward the sides of the
elivitray. foc as BEE Re Ne Pa ee Ke ee 2

3—Prothorax with the converging sides evenly and feebly arcuate from base to
apex. Integuments where exposed deep black and somewhat shining; pale
scales white, forming an entire loose vitta near each side of the pronotum
and, on the elytra, forming a long parallel sutural area behind the scutellum
in basal half, and thence scattered more broadly to the apex but almost
wanting suturally; on the under surface large and dense throughout; beak
(o) evenly cylindric, strongly arcuate and scarcely as long as the head and
prothorax, the antenne fuscous, moderately long; prothorax a fourth wider
than long, the truncate apex not quite half as wide as the base; punctures
strong and dense, shining, with a narrow smoother, but not well defined,
median line; elytra fully a fourth longer than wide, the oblique sides broadly
arcuate, the apex narrowly rounded, evidently wider than the prothorax and
four-fifths longer, the intervals three times as wide as the groove-like striz,
confusedly, strongly punctured and rather shining; male with the abdomen
very feebly impressed and less squamose medially at base, the prosternal

BRAZILIAN BARINZ 225

spines minute and vestigial, forming two very small tubercles. Length 2.7
mm.; width 1.2 mm. Brazil (Chapada). March. One male specimen.
testata n. sp.
Prothorax more or less inflated, always more narrowed apically.............. 4
4—Pale scales yellowish-white, narrowly lineate, loosely distributed, broadly
toward the pronotal sides, narrowly so just beyond the middle, and with a
small vacant space in the broad basal part, wanting medially, except on the
basal lobe, very sparsely scattered toward the sides of the elytra and more
closely aggregated on the basal parts of all the intervals, with gradually
increasing lengths of the lines inwardly—on the suture extending to about
the middle; intervals 1-4 with shorter lines of dense scales behind the middle,
the sutural the shortest; under surface rather densely clothed throughout;
body black; beak (2) evenly cylindric and strongly arcuate, black, three-
fourths as long as the elytra, the piceous antenne moderate; prothorax
short, one-half wider than long; apex half as wide as the base; converging
sides straight, rounding and oblique anteriad; punctures strong and dense;
median line scarcely modified; elytra a fifth longer than wide, oval, with
narrow apex and reéntrant sutural angle, about twice as long as the prothorax;
grooves as in the preceding, the confused interstitial punctures smaller and
rather feeble. Length 2.6 mm.; width 1.3 mm. Brazil (Chapada). No-

Vemberme Onektemialetar ws siciaatiaclsare aide cuales steal sts lanes brevicollis n. sp.
Pale scales white above and beneath and differently arranged at the sides of the
jDIROWOALON, o> ood nee ODOM ooo dob D EGO dor Stee Es dG CN CREAS SAECO er Oe Ler OD RRND 5
5—Pronotal scales forming an entire or sometimes slightly interrupted sublateral
NCEE aca Bid Avid Od Ged’ 0 Clo. DESAI IEEE aro MID MOOG Rie atten een pico cs Losin rece 6
Pronotal scales forming a broadly and completely interrupted sublateral vitta. . 11
6—Vacant areas of the elytra deep black and sharply defined................ 7
Vacant areas more or less suffused with pale scales, the denser design, however, °
VIL TCMM EM cis eee cal ios Se EIS aa Myelin oP oldies Siul Seehahe she Rita eit venels os 10
7—Prothoraxibut slightly transverse: . i)... 2%). vis ales ean. seein e sea mine 8
Prothoraxtstromply; transverse. ). iis e c/a) else © aiete sla 'e » vippae ob ie inbevel(sl ove nuatatelavein's 9

8—Form elongate-oval, convex, black, the legs long, piceous; pronotum with
very few scales outside of the sublateral vitte, which are very slightly
interrupted just beyond the middle, and none at all along the middle, the
vitte extending laterally at apex to the dense scales of the entire under
surface; on the elytra, the pale scales are sparsely scattered toward sides
and apex, dense at extreme base and in a narrowly triangular sutural area
extending to the middle, the post-median spots oblique and generally ex-
tending to the suture, frequently united along the latter with the triangular
scutellar area; beak (<”) rather thick, cylindric, moderately arcuate and as
long as the head and prothorax, or (@) similar in length but more arcuate
and much narrower and smoother beyond the antenne, which are piceous
and submedial (¢@), or near three-fifths (7); prothorax a fifth wider than
long, the feebly arcuate converging sides gradually more arcuate anteriad;
punctures dense, moderate but deep; elytra oval, a fifth longer than wide,
two-thirds longer than the prothorax, the grooves deep; intervals densely
punctate, nearly as in the preceding species; prosternal spines moderate,
slender, not separated by a perforate impression. Length 3.8-4.0 mm.;
width 1.75-1.85 mm. Brazil (Santarem). Eight specimens... . picta n. sp.
Form more rhombic-oval, the size larger, black, the pale pronotal scales densely
covering the entire lateral part, extending down the inferior flanks and along
base and apex to the middle, with a small denuded area at the middle of the
extreme sides; median area broadly cordiform and entirely devoid of pale
scales; on the elytra the pale scales are scattered toward the sides and form
a large, posteriorly and obtusely angulate area, involving the entire base

236

MEMOIRS ON THE COLEOPTERA

and, on the suture, extending slightly beyond two-fifths, the two post-
median spots narrowly uniting on the suture but separated from the basal
area; white scales of the under surface extremely dense throughout; beak
(7) somewhat arcuate, cylindric, not quite as long as the head and prothorax,

“the rufous antenne rather long, submedial; prothorax large, a fourth wider

than long, the converging sides subevenly and strongly arcuate, becoming
slightly sinuate at apex; punctures small and dense, the dark scales very
deep brown; elytra parabolic, rather more than a fourth longer than wide,
evidently wider than the prothorax and three-fourths longer, with somewhat
prominent humeri; grooves deep, the densely punctate intervals nearly as
in the preceding species; abdomen of the male scarcely at all modified at
base, the erect prosternal spines slender, rather short, with their apices
slightly reflexed. Length 4.2 mm.; width 2.2 mm. Brazil (Chapada—
campos! October: sOnemmaleyexanisple: see tain. eens pernota n. sp.

9—Body somewhat broadly oblong-suboval, black, with rufous legs; sublateral

pronotal vittee at outer fourth broad basally, narrow and oblique anteriorly
and often narrowly interrupted beyond the middle, extended laterally at
apex to connect with the densely squamose under surface; median line very
narrowly and loosely albido-squamose; extreme sides loosely albido-squam-
ose, this area clearly separated from the abrupt upper limit of the dense
inferior flanks, which is slightly below the obtuse edge; elytra with scattered
white scales broadly toward the sides, these dense and forming a large
subquadrate scutellar area, broader at base and occupying basal third, the
post-medial spots formed by short lines on intervals 2-4 and always widely
separated from the scutellar area; beak (@) as long as the head and pro-
thorax, slender and nearly straight, arcuate but not much thicker in about
basal half, the pale antenne slightly behind the middle; prothorax fully
two-fifths wider than long, the sides strongly arcuate, parallel basally, the
apex very briefly and feebly prolonged, much less than half as wide as the
base; punctures moderate and very dense, the dark scales rather wide,
blackish-brown; elytra much narrowed behind, subparabolic, a fourth longer
than wide, with reéntrant sutural angle, not quite twice as long as the pro-
thorax; surface rather finely and closely punctate, the grooves moderate.
Length 3.4-3.7 mm.; width 1.7-1.85 mm. Brazil (Chapada). November.
DLES DECISIS, ioe es ced le ba Sak GIA ee ee graphica n. sp.

Body nearly as in the preceding in form, coloration and sculpture, also in general

scheme of ornamentation, except that the lateral pale scales of the pronotum
are more extended in area, joining the sublateral vitta near the middle and
gradually merging into the dense stales of the inferior flanks without break,
and that, on the elytra, the dense basal area is broadly subtriangular, extend-
ing almost to the middle and separated from the large post-median spots by
a very narrow space—sometimes connected with the latter along the second
interval, the beak (@) nearly similar; prothorax shorter, almost one-half
wider than long, the sides more rapidly oblique anteriorly and the pale
scales along the median line more obvious as a rule; elytra almost similar,
but more nearly twice as long as the prothorax; legs piceo-rufous. Length
3.6 mm.; width 1.75 mm. Brazil (Chapada). November. One female
Cy OTOH DGTES OSE, Bit 1 uO EE es PRR lta bee er PRN ee hn posta ch ers decora n. sp.

10—Form nearly as in the two preceding, black, the pronotal pale scales disposed

almost as in decora, but occupying still more of the surface, the large median
area not so broad and with a confused mixture of whitish and dark brown
scales; elytra with the parallel white scales distributed almost throughout
the surface, but denser on the first and second intervals almost throughout
the length, and on the third and fourth behind the middle for a fourth the
length; just before and behind the latter two short lines, there is a small

BRAZILIAN BARINA 27,

almost vacant space; beak (2) nearly as in the two preceding, the antenne
rather more posterior, inserted near two-fifths, prothorax nearly as in decora,
almost one-half wider than long, more parallel basally, the sides more obliquely
rounded anteriad; elytra almost similar but rather more strongly rounded at
tip, just twice as long as the prothorax. Length 3.6 mm.; width 1.8 mm.
Brazil (Chapada). November. A single Weeds paddosac gratiosa n. sp.
11—Areas of pale scales on the elytra loosely aggregated and composed of rather
more slender scales than, in any of the preceding species, the white scales of
the under surface dense, but finer and sparser on the abdomen; body rather
narrowly rhombic-oval, deep black and somewhat shining, the legs more or
less rufous; pale scales of the pronotum forming small dense elongate basal
sublateral spots, the median line with a few very slender squamules, denser
on the lobe; elytra with a medio-basal broadly triangular dense area, the
post-median denser spots oblique, composed mostly of short lines on intervals
2-4, and well separated from the basal area; beak rufescent, slender and
feebly sculptured, cylindric, evenly arcuate and almost as long as the elytra
(7), or as long as the elytra, somewhat more slender and straighter, becoming
arcuate but only slightly thickened basally ( ); antenne rufous, submedian
in both sexes; prothorax only a fourth wider than long, the feebly converging
sides broadly arcuate, only a little more rounding anteriorly; punctures
rather coarse and very narrowly, though obviously, separated; elytra with
the oblique sides broadly arcuate, the apex narrowly rounded, with reéntrant
sutural angle, three-fourths longer than the prothorax; grooves moderate,
deep; interstitial punctures confused, rather small and, for the most part,
decidedly sparse; male with two extremely small slender erect prosternal
spines. Length 3.0-3.6 mm.; width 1.3-1.6 mm. Brazil (Santarem).
Bight spetciniems een aas nce: «fe © Sais ee eal tints w tieeiinets 5 win Siete s hilaris n. sp.
Areas of pale scales on the elytra loosely aggregated along all the intervals basally,
and composed of very slender squamules, these a little broader and denser
on intervals 2-3 to behind the middle, and 3-5 in short lines behind the
middle, forming obliquely quadrate spots; sides with fine loose squamules,
the pronotal squamules nearly as in the preceding, those of the under surface
rather finer and less dense; body much smaller in size, black, with rufous
legs and antenne, the latter similarly inserted behind the middle, but much
shorter; beak (@) similar but only a little longer than the head and pro-
thorax, the latter shorter, two-fifths wider than long, the sides nearly similar,
but the apex is wider, half as wide as the base; punctures large but very
shallow, dense and opaque; elytra narrower, more than a fourth longer than
wide, the oblique sides broadly arcuate, the apex similar, about twice as
long as the prothorax; grooves rather coarse, somewhat more than half as
wide as the coarsely and loosely punctate, somewhat shining intervals.
Length 2.3 mm.; width I.1 mm. Brazil (Chapada). November. One
Trt RET pete Son at Shale, cletisr cnet oem sue dna efin eee le = vernilis n. sp.
12—Scales of the upper surface large and very dense throughout, bright fulvous,
with sharply defined areas of white in two pronotal areas at the sides, the
basal one large and quadrate, the apical small, elongate and separated from
the sides, the two joined by a narrow line near the margin, also with a small
central spot; on the elytra there is a large quadrate scutellar area and a
still larger transverse one, just behind the middle and posteriorly quadrately
emarginate, the two being joined by a narrow line along the suture; on
each elytron, also, a small median subbasal spot, a slightly larger one at the
humerus, a very short marginal streak at the middle and one, angulate, at
the sutural angles; under surface with dense white scales, fulvous in a narrow
area at the upper part of the inferior thoracic flanks; beak ( ?) curved as in
the two preceding but thicker throughout and more squamose, as long as

38

MEMOIRS ON THE COLEOPTERA

the head and prothorax; antenne blackish, short, medial, inserted on the
inferior surface and with very short scape and short, broadly oval club;
prothorax two-fifths wider than long, the sides parallel in basal, oblique in
apical, half, the truncate apex fully half as wide as the base; elytra parabolic,
a fifth longer than wide, three-fourths longer than the prothorax; legs
piceous. Length 3.2 mm.; width 1.4 mm. Brazil (Chapada—campo).

October.2g A. singlerfemalem4&. aaron nen eee renee elegans n. sp.
Scales of the elytra more or less nebulously variegated..................... 13
13—Vestiture;palevochreoushin color. | eee eee eee eer eee 14
Vestiture white or nearly so; species much smaller........................ 15

14—Body oval, black; beak cylindrical, very evenly and rather strongly arcuate

in both sexes, two-thirds as long as the elytra and strongly, very densely
punctate basally (o7), or not quite so stout, smooth, finely and sparsely
punctate and three-fourths as long as the elytra (2); antenne piceous,
moderately long, medial (@) or slightly beyond (co); prothorax two-fifths
to nearly half wider than long, the sides strongly, subevenly arcuate, almost
parallel basally, the punctures strong and dense; parallel scales transverse,
somewhat dense, sometimes rather denuded medially, uniform; elytra
triangular, with strongly arcuate sides and narrow apex, a fourth longer than
wide and less than twice as long as the prothorax, the squamules loosely
distributed, but denser in the scutellar and basal sutural region, and in the
usual subsutural quadrate areas just behind the middle; male with two
straight, very slender and moderate prosternal spines, the inner edge of the
anterior tibiz loosely fringed, the hairs barely longer than the thickness of
the tibia; legs piceous. Length 2.75-3.0 mm.; width 1.35-1.6 mm. Brazil
(Santarem) apm ibneelspecintensse ore Hee ae ace eis propinqua n. sp.

Body in most respects almost exactly as in the preceding, the form and vestiture

almost similar; beak (co) longer and smoother, strongly, evenly arcuate and
fully three-fourths as long as the elytra, the punctures distinctly separated;
antenne rufous, prothorax nearly similar in form and vestiture, the trans-
verse scales, however, not quite so broad; elytra nearly similar, but with
much less or obsolescent reéntrant angle at the suture and with somewhat
coarser grooves; male with similar very slender and rather short prosternal
spines, and wholly unmodified surface between them, the anterior tibie
loosely fringed within, but with the hairs very much longer, being more
than twice as long as the thickness of the tibia. Length 2.7-2.85 mm.;
width 1.35-1.45 mm. Brazil (Chapada). October and November. Three
itiales peCiinenS: Ax hh.8 iaie Ge, SA oe Ee EO ee thespis n. sp.

Body subsimilarly oval but with relatively longer prothorax and broader

scales, forming a dense crust above and beneath, the latter whiter; pronotal
scales a little darker and not quite so wide medially; on the elytra they are
pale fulvous, whiter in a triangular basal and subtransverse post-medial
area, and also toward the sides, but subequally dense throughout; beak
almost similar in the sexes and strongly, evenly arcuate, about as long as the
head and prothorax, a little more tapering distally but similarly smooth,
rather densely squamose thence to the base; antenne medial ( @), a little
beyond (<7), blackish and rather short, the club stout; prothorax scarcely
a third wider than long, the sides feebly converging and barely arcuate,
becoming gradually more arcuate anteriad, somewhat strongly, very densely
punctate and opaque where exposed; elytra oval, scarcely a fifth longer
than wide, three-fourths longer than the prothorax, the humeri as usual in
this section—obtusely and slightly prominent; striae moderate, narrowly
dividing the squamose crust; male with two very slender, outwardly curved
prosternal spines, about half as long as the prothorax, with no evident
impression between them, the abdomen feebly impressed and less squamose

BRAZILIAN BARINA 239

medio-basally; anterior tibize without trace of fimbria. Length 2.5~-2.8
mm.; width 1.35-1.55 mm. Brazil (Chapada). May and June to Novem-
ber... On flowers “Sevenispecimenset) is io voose isis bec ae seducta n. sp.
Body stouter, oblong-oval, almost exactly similar in the dense nubilous vestiture,
except that the darker area along the median part of the pronotum is narrower
and far more indefinite and nubilous, and the dense whiter areas of the elytra
larger, though similar in general shape and relationship, nubilously changing
into the equally dense and pale brown ground-vestiture; beak (<) almost
similar but even more arcuate, evenly so and relatively longer, being much
longer than the head and prothorax, the latter broader and more transverse,
almost two-fifths wider than long; scutellum not quite so small; elytra more
rapidly narrowed and more narrowly rounded at apex, but little longer than
wide and two-thirds longer than the prothorax, the sides more strongly
arcuate; male abdomen with a small, feeble and much less squamulose
rounded basal impression, the prosternal spines in the male type three-
fourths as long as the prothorax and separated by a deep glabrous rounded
impression; beak in the female not quite so long or arcuate as in the male
but more tapering distally. Length 3.1-3.2 mm.; width 1.65-1.7 mm.
Brazil (Chapada). August and November. Two specimens.
verecunda n. sp.
15—Form narrowly subrhombic-oval, black, with piceo-rufous legs, the large
parallel pronotal scales slightly separated, generally denuded medially, those
of the elytra narrower, loosely and very evenly distributed throughout the
elytra, except in a transverse post-medial sutural area where they become
dense; white and dense throughout the under surface; beak (co) rather
thick, strongly arcuate, somewhat less so basally, scarcely as long as the
head and prothorax, densely sculptured; antenne barely beyond the middle,
unusually short and compact, piceous, the scape short; funicle gradually
wider distally but with rather abrupt club; prothorax scarcely a fourth
wider than long, the feebly arcuate sides somewhat more oblique anteriorly;
apex half as wide as the base; punctures rather coarse, dense, with finely
sculptured floors and a distinct smooth median line; elytra parabolic but
somewhat narrowly rounded at apex, a fifth longer than wide and three-
fourths longer than the prothorax; striae very moderate, not widely parting
the vestiture; male narrowly impressed and less densely squamose on the
abdomen medio-basally, the prosternum with two minute and feeble tubercles
in the type, instead of spines. Length 2.3 mm.; width 1.1 mm. Brazil
(Chapada) March, One specimens. 0 .ii2 vn 22 tlhe wes nebulosa n. sp.
Form stouter, black, with piceous legs; scales nearly as in the preceding, except
that they are dense on the elytra not only post-medially, but broadly along
the suture to the base, gradually more broadly; beak (9) only moderately
slender, strongly and very evenly arcuate, somewhat longer than the head
and prothorax; antennez nearly as in the preceding and medial; prothorax
larger, between a fourth and third wider than long, the sides scarcely arcuate
and subparallel, broadly rounding beyond the middle; punctures smaller
than in nebulosa, dense and without trace of smooth median line; elytra
more broadly oval, but narrowly rounded at tip, a fifth longer than wide and
two-thirds longer than the prothorax; striz coarser. Length 2.7 mm.;
width 1.25 mm. Brazil (Chapada). November. One example.
solida n. sp.
16—Oval, convex, shining, black, the legs rufous; pronotal scales more or less
denuded medially, those of the elytra narrower, rather loosely scattered, but
dense in a scutellar spot and irregularly closer on intervals 2-4 just behind
the middle; on the under surface broad, white and very dense; beak ( 2)
as long as the head and prothorax, strongly arcuate, less so beyond the

240

MEMOIRS ON THE COLEOPTERA

middle, slender and feebly tapering, smooth and finely, sparsely punctate,
the antenne moderate, piceous, just visibly behind the middle; prothorax
transverse, not quite one-half wider than long, the strongly arcuate sides
gradually subparallel basally, the completely non-tubulate truncate apex half
as wide as the base; punctures moderate but deep, separated by nearly
twice their widths, with a smooth median line; elytra elliptic, a fourth longer
than wide, twice as long as the prothorax, the grooves deep; intervals finely,
sparsely and confusedly punctate. Length 3.0 mm.; width 1.5mm. Brazil

(Ghapada) November) tOnetiemalessjeerecre cee ai bucolica n. sp.
II—Size moderately small, the outline broadly oval.......................-. 2
Sizeimore or less) minutes; more’elongate-oval-) 3 2)5- +26 ssn. n2- eos eee 2

2—Body subevenly oval, black and somewhat shining, with only feebly prominent

humeri; scales above yellowish-white, very slender and not dense, though
uniform throughout and not concealing the integument, larger, denser and
whiter beneath; beak (<”) as long as the elytra and strongly, evenly arcuate,
moderately slender, rather closely punctate and minutely squamulose basally,
or (@) a little longer, somewhat more narrowed distally, even more strongly,
evenly arcuate and smoother; antenne moderately long, behind the middle
in both sexes; prothorax nearly one-half wider than long, the sides moder-
ately converging, becoming more arcuate beyond the middle to the gradual
truncate tubulation, which is less than half as wide as the base; punctures
strong and very close, but not in mutual contact; elytra parabolic, nearly a
fourth longer than wide, very nearly twice as long as the prothorax, the
sutural angle at apex not reéntrant; grooves deep, moderate, the intervals
finely, confusedly and loosely punctate; male with very feeble abdominal
characters, the prosternal spines black, slender, as long as the thickness of
the beak to twice as long. Length 2.7-3.0 mm.; width 1.35-1.65 mm.
Brazila(Santarem) see MOumspectinenss ii ettin einen tise amnicola n. sp.

Body smaller and not quite so broadly oval, piceous-black and feebly shining,

the legs rufescent; scales above very slender, nearly white, not very closely
distributed but uniform, similarly decumbent throughout, as in the others
of this group; beak (@) much shorter, thinner and less strongly arcuate
than in the preceding, scarcely two-thirds as long as the elytra, slender,
piceous and smooth, punctate and squamulose at the sides basally; antennz
obscure rufous, moderately long, inserted at the exact middle; prothorax
only a fifth or sixth wider than long, the sides feebly, subevenly arcuate to
the gradual tubulation, which is half as wide as the base; punctures very
moderate and close but evidently separated; elytra similar in form but more
narrowly parabolic, a fourth longer than wide, but distinctly less than twice
as long as the prothorax; grooves deep, moderate, the intervals rather finely
and loosely punctate. Length 2.6 mm; width 1.25 mm. Brazil (Chapada
—forest). May. A single female specimen................ sectator n. sp.

Body somewhat broadly oval and strongly convex, feebly shining and piceous,

the legs and beak blacker; squamules above notably long and slender,
yellowish, evenly distributed but not very dense; beak (<) cylindric, very
strongly, evenly arcuate and almost as long as the elytra, longitudinally .
furrowed at the sides and punctate basally; antenne piceous, moderately
long, with well developed and elongate-oval club, inserted just behind the
middle, the scape extending only four-sevenths the distance to the eye, the
latter only moderate in size; prothorax transverse, about four-sevenths
wider than long, the sides parallel and straight not quite to the middle,
then oblique and feebly arcuate to the truncate apex, which is distinctly less
than half as wide as the base; punctures rather strong and evidently sepa-
rated; elytra broad, obtusely parabolic, without reéntrant sutural angle,
only about a fifth longer than wide, but distinctly more than twice as long

BRAZILIAN BARIN 241

as the prothorax; grooves moderately coarse, deep, the intervals with fine,
confused and well separated punctures; male with very feeble abdominal
characters, the prosternal spines very short, slender and erect. Length 2.7
mm.; width 1.38 mm. Brazil (Entre Rios). September. One example.
relicta n. sp.
3—Scales of the elytra broader, forming a dense crust parted by the deep striz.
Oblong-oval, the integuments black, the legs obscure rufous; dense scales of
the upper surface uniformly ochreous, a little broader and denser at the
sides of the pronotum than medially, whiter, broad and forming a dense
crust throughout beneath; beak (<) nearly two-thirds as long as the elytra,
rather more arcuate distally than basally, punctate and squamose through
the greater part of the sides, the antenne piceous, moderately long, sub-
medial; prothorax a third wider than long, the arcuate sides subparallel
basally, more oblique anteriorly, the apex less than half as wide as the base;
punctures moderate, dense; basal lobe and small scutellum with very dense
whiter scales; elytra elliptic, a fourth longer than wide, not quite twice as
long as the prothorax; strie deep, a third or fourth as wide as the very
densely squamose intervals; male with the abdomen slightly impressed and
less squamose medio-basally, the prosternal spines short, slender, straight and
slightly oblique. Length 2.4 mm.; width 1.23 mm. Brazil (Chapada—

forest). August “One male specimens. 0-2... 25-5.0 25-4 ingeniosa n. sp.
Scales of the entire upper surface very narrow and slender, abundant and uniform,
but not forming a dense crust on the elytra; body more minute.......... 4

4—Form oval, the integuments piceous, with rufous legs; squamules above
yellowish, very close but not in mutual contact, uniform; whiter, broader
and dense beneath; beak (<”) slender, very strongly arcuate, just visibly
tapering and smooth distally, squamulose basally, the antennae rufous, very
slightly behind the middle; prothorax very nearly as long as wide, the
converging sides subevenly and feebly arcuate, the apex not at all tubulate
and half as wide as the base; punctures dense; scutellum well developed
and with coarse, whitish scales, like those of the thoracic lobe; elytra rather
broadly parabolic, not a fifth longer than wide, a fourth wider than the
prothorax and two-thirds longer; striae moderate, the interstitial punctures
close-set; male with the abdomen scarcely modified, the prosternal spines
short, slender, erect and obscure rufous. Length 1.8 mm.; width 0.8 mm.
Brazila(Chapada) =, ane: One specimen... 5... -s0 06 oe timida n. sp.
Form narrower and more elongate-oval, rufo-piceous, with red legs; squamules
above yellowish, even smaller, finer and more distinctly separated than in
the preceding, uniform; paler, gray and denser beneath; beak (<7) a little
longer and still more strongly arcuate, nearly three-fourths as long as the
elytra, cylindric, only just visibly tapering distally, punctulate and squamu-
lose basally; antenne piceous, submedial, not so evidently behind the middle
as in the preceding; prothorax only a fifth or sixth wider than long, the sides
feebly arcuate and subparallel basally, thence oblique and straighter to the
non-tubulate apex, which is evidently a little less than half as wide as the
base; punctures dense; median line very faintly prominent; scutellum
much smaller and narrower, very densely clothed with much smaller squam-
ules; elytra more elongate, oval, more narrowly rounded at tip, three-fourths
longer than the prothorax, the sutural angle, as usual in this group, not at
all reéntrant; striz much coarser, the squamules of the narrower intervals
more nearly in two irregular lines; male with the abdomen not at all modified,
the prosternal spines oblique, slender, rufous, slightly arcuate and three-
fifths as long as the prothorax. Length 1.88 mm.; width 0.8 mm. Brazil
(Chapada). May. A single male example.............subangusta n. sp.
Form still narrower, the body more minute than in any other species; pale

T. L. Casey, Mem. Col. X, Aug. 1922.

to
NO

MEMOIRS ON THE COLEOPTERA

ferruginous, with bright rufous legs and piceo-rufous beak, the pale yellowish
squamules of the upper surface rather sparse but very uniform throughout,
forming two uneven interstitial series; those beneath broader and white,
but still rather well separated; beak (@) slender, strongly arcuate, two-
thirds as long as the elytra, smoother but only very slightly thinner distally,
the well developed antenne at two-fifths rufous, with dark club; prothorax
a fourth wider than long, conical, with feebly arcuate sides, the somewhat
tubulate truncate apex more than half as wide as the base; punctures strong
and dense; scutellum very small, quadrate, rough and only minutely and
sparsely squamulose; elytra more than a fourth longer than wide, evenly
elliptic, twice as long as the prothorax, the strie deep and rather coarse;
intervals sparsely punctate and somewhat shining. Length 1.6 mm.; width
0.7mm. Chapada. May. On flowers, in forest clearings. One specimen.

subtilior n. sp.

Form not so narrow and with more distinctly tubulate thoracic apex, black, the

legs obscure rufous; squamules above nearly white, slender, much closer
than in subtilior, about as. in subangusta, evidently separated and forming
two uneven interstitial series, still whiter and very dense beneath; beak (<7)
slender, very feebly tapering, two-thirds as long as the elytra, strongly
arcuate medially, less so at base and apex, or (9) almost exactly similar
but rather less arcuate; antenne just visibly beyond (co) or behind (9)
the middle; prothorax a sixth (<) or a fifth (9) wider than long, the con-
verging sides feebly arcuate, more so at apex, which is rather notably tubu-
late, especially in the male, and half as wide as the base, less (2); punctures
close; scutellum small, quadrate, very densely albido-squamose like the
thoracic lobe; elytra oval, scarcely a fifth longer than wide, not three-fourths
longer than the prothorax, the strize rather coarse and deep; male with the
abdomen scarcely at all modified, the erect prosternal spines short, rufescent,
very slender, slightly arcuate and not half as long as the prothorax as a rule.
Length 1.8 mm.; width 0.75-0.85 mm. Brazil (Chapada). May and June.
On flowers, in forest clearings. Six specimens............... floralis n. sp.

Form rather more broadly oval, the size less minute, piceous, the legs rufous;

slender squamules of the upper surface pale ochreous and not nearly white,
much closer, only very narrowly separated throughout and confused on the
interstrial surfaces; beak (<c) longer, very strongly, evenly arcuate, nearly
three-fourths as long as the elytra and very slightly, gradually tapering,
closely punctate and squamulose at the sides basally; antennz moderate,
rufous, with fuscous club, medial in position, the scape extending less than
three-fifths to the eye; prothorax nearly similar in outline and with a similar
strong apical tubulation—less evident in the female of floralis, the punctures
dense; scutellum and thoracic lobe very densely clothed with whiter scales,
the former larger than in floralis; elytra a fourth longer than wide, parabolic,
not quite three-fourths longer than the prothorax, the striz slightly less
coarse and the intervals wider than in floralis; male with the abdomen
impressed medio-basally but not differently clothed, the prosternal spines
slender, feebly arcuate, rufous and half as long as the prothorax in the type.
Length 2.0 mm.; width 1.1 mm. Brazil (Chapada). June. One example.

pudica n. sp.

I]]—Larger species, never under 3 mm. in length, the male, where known, usually

with notably long slender subporrect prosternal spines, often extending
beyond :thevmhea dy. ele a aeup Ston ie tne obctcie ORS oS ra ee ee 2

Small species, the male, where known, always with extremely short erect prosternal

spines; antennal scape extending much more than half way to the eye... .9

2—Ground squamules of the elytra small, dark and inconspicuous; scutellar

region. mot.solidly squamoser: <eiyaritey cio ocate eeietibiee tudor tne erate 3

BRAZILIAN BARINE 243

Ground scales of the elytra rather bright fulvous; white scales closely aggregated
on intervals one and two in nearly basal half, forming a conspicuous parallel

la Sein coh enn nrg eel NGA T Ae tee a LATE Sa ee ek a ma ee oy: 8
3—Pronotal punctures sparse, or at least distinctly separated................ 4
Bronatal pioctusess Genser tak ae einer ttre eb tit gta ooh. Sia tons inticust < Spettncicotae tls aot 7
4—Sides of the protherax converging from: the base... 4 ty. ce. 6 ei em a crn pane cs os 5
sides becomingiparallehin about joasall Malte pices hist.< u/s: vereetcel guise. sowie ence « ela.: 6

5—Body rhombic-oval, convex, black and shining, the legs, beak and spines
black. Male with the beak rather thick, cylindric, long and very strongly
arcuate, separated from the head by a large deep reéntrant angle, punctured
and longitudinally, feebly furrowed, cylindric and fully as long as the elytra;
antenne moderate, blackish and medial; prothorax scarcely a sixth wider
than long, conical, with broadly and evenly arcuate sides, the distinct apical
tubulation less than half as wide as the base; punctures sparse and very
shallowly impressed, wanting basally; pale squamules long and very slender,
extremely remote and without order; scutellum smooth and glabrous;
elytra nearly a third longer than wide, the oblique sides moderately arcuate,
the apex rather strongly rounded, scarcely twice as long as the prothorax;
grooves deep;. intervals distinctly but loosely subbiseriately punctate;, under
surface with well separated small brownish squamules; abdomen not dis-
tinctly modified; prosternal spines long, straight, parallel and much longer
than the prothorax, separated by a simple glabrous canaliculation. Female
smaller than the male, similar in color and almost as shining, the beak
shorter and less arcuate, more arcuate basally than apically, a little more
tapering, three-fourths as long as the elytra, the antenne similar and medial;
prothorax much shorter, a third wider than long, subsimilarly conical, but
with the punctures more numerous, rather coarser and especially much
deeper; elytra nearly as in the male but much more than twice as long as
the prothorax, similarly with the pale slender squamules sparsely scattered,
subunilineate, more abundant suturally toward base; anterior cox similarly
narrowly separated. Length (o”) 3.5-3.8 mm., ( 9) 3.3-3.5 mm.; width (<7)
1.7-2.0 mm., (@) 1.6-1.8 mm. (8 o', 6 2). Brazil (Santarem).
levicollis n. sp.
Body (co) almost similar throughout, but a little smaller and somewhat narrower;
beak nearly similar, but scarcely so thick and a little more tapering, very
arcuate and somewhat longer than the elytra, the piceous antenne at the
middle, the scape similarly short and not extending quite half way to the
eye; prothorax fully a fifth wider than long, conical, the sides broadly,
subevenly arcuate; apex fully half as wide as the base; punctures twice as
numerous, rather smaller but more deeply impressed, not so completely
obsolete basally, but becoming very minute; squamules slender, slightly
fulvous, almost wanting except in three narrow and loosely aggregated
vittee, which become obsolete in nearly basal half; scutellum smaller and
much narrower, parallel and longer than wide, not transversely obtriangular
as in the preceding; elytra similar but still more narrowly rounded at apex,
not quite twice as long as the prothorax; strie deep, the intervals loosely
punctate, with a few long slender yellowish squamules, more closely aggre-
gated in subbasal and apical lines on the second interval, and more or less
short lines on intervals 4-6 behind the middle; under surface with broader
whitish scales, very dense and unlike those of the preceding, the abdomen
() flattened and less squamose medio-basally, the prosternal spines straight,
oblique and much longer than the prothorax. Length 3.35 mm.; width
E.6 mim.) -Wrazil. (Santarem).| One example. ......... ../5 5 is). 0 2 obnixa n. sp.
A—Body (<7) very much as in obnixa but narrower, the long slender yellowish
squamules forming three entire, very loose pronotal vitte, similarly arranged

244

MEMOIRS ON THE COLEOPTERA

on the elytra, but the ground squamules of the latter are dark red-brown and
not so nearly black, the scutellum small, quadrate and subglabrous; beak
(o) nearly similar, the antenne medial, piceo-rufous, the scape extending
not quite half way to the eye, the club elongate-oval; prothorax almost
similar, the punctures rather closer, similarly minute and obsolescent basally;
elytra as in obnixa but slightly narrower, not quite twice as long as the pro-
thorax, the pale squamules forming a more compact oblong area behind the
scutellum; under surface, legs and prosternal spines nearly similar. Length
3.1 mm.; width 1.5 mm. Brazil (Para),—Baker. One male specimen.
placabilis n. subsp.

Body (2) almost exactly as in Jevicollis (9), but a little broader, with the some-

what larger prothorax similarly coarsely and very deeply but still more
closely punctate, the punctures separated by only about a third their widths;
slender yellowish squamules loosely aggregated in a short sublateral vitta
basally, not obvious in /@vicollis except at extreme base; squamules of the
elytra extremely few and remote, more numerous at base and in a small
sutural spot at basal third; beak a little longer and less arcuate, in the same
way more arcuate basally than apically and four-fifths as long as the elytra,
the antenne medial; mandibles straight, the left apparently with a slight
nick internally; prothorax nearly similar, almost two-fifths wider than long,
the sides less converging from the base and more rounding beyond the
middle; scutellum as wide as long, somewhat smaller, smooth and polished;
elytra as in /evicollis, parabolic, more than twice as long as the prothorax;
abdomen with the small brownish squamules larger and closer than in that
species, but much narrower and less dense than in obnixa. Length 3.5 mm.;
width 1.85 mm. Brazil (Chapada—forest). November. One female.
opica n. sp.

6—Form rhombic-suboval, shining, black, the long slender yellowish squamules

remote on the pronotum, somewhat more numerous toward the sides and
medially but not in any way in vitta-like form; on the elytra remotely
scattered, only slightly less sparse at the scutellum and suturally at basal
third; beak (<M) as in Jevicollis (o%) but slightly less arcuate and not quite
so long, evidently shorter than the elytra; antenne medial, rufo-piceous, the
scape extending a little more than half way to the eye; prothorax fully a
third wider than long, the strongly arcuate sides gradually parallel behind
the middle, the apex evidently tubulate, not quite half as wide as the base;
punctures strong and rather deep but well separated laterally, gradually
feebler and shallower discally and obsolescent basally; scutellum much
smaller, as wide as long, smooth, polished and obtriangular; elytra as in
levicollis but narrower and relatively longer, three-sevenths longer than wide
and evidently more than twice as long as the prothorax, the grooves similarly
deep; abdomen with rather broad and close-set, brownisl-white scales, not
very obviously modified in the male, the prosternal spines much shorter
than in Jevicollis, slender, similarly oblique and just half as long as the
prothoraxinthetype. Length 3.35 mm.; width1.7mm._ Brazil (Chapada).
March: @One male’ exampleyj)) Seer eee one parabilis n. sp.

7—Body rhombic-oval, black throughout, the legs not paler; squamules above

slender but conspicuous, pale yellowish, rather closely aggregated in a lateral
vitta and median more irregular line on the pronotum, and rather dense on
the second strial interval in apical, and more than basal, third; also along
the fourth medially and on the sixth just before and behind the middle,
broad, dense and similar in color throughout the under surface; beak (9 )
strongly, subevenly arcuate, very slightly tapering, four-fifths as long as
the elytra, finely, loosely punctate, slightly squamulose basally and separated
from the head by a much shallower reéntrant angle than in the Jevicollis

BRAZILIAN BARINZ 245

section; antennz similar, piceous, the scape extending more than half way
to the eye, the club well developed; prothorax a third wider than long, the
sides converging and straight, more oblique in apical two-fifths, the feebly
tubulate apex half as wide as the base; punctures rather coarse, very close;
scutellum small, squamulose; elytra barely a fourth longer than wide, the
oblique sides broadly arcuate, the apex narrowly rounded, with reéntrant
sutural angle, scarcely twice as long as the prothorax; grooves rather narrow,
deep, the intervals somewhat coarsely and closely punctate; anterior coxe
separated by half their width; transverse prosternal constriction deep and
at a considerable distance from the apex. Length 3.0 mm.; width 1.6 mm.
Brazil (Santarem). One female specimen................... intrita n. sp.
Body feebly subrhombic-oval, black throughout, the surface opaque where
exposed; slender squamules pale yellow, scattered over the pronotum, with
an oblique sublateral vitta and median line conspicuous and of closer squam-
ules, these also almost as close broadly at the sides, rather close on the elytra,
except subbasally and toward the suture; broad, white and very dense
beneath; beak (2) differing from any of the preceding, very slender and
smooth, enlarging slightly at the extreme base, not flattened, strongly and
evenly arcuate and longer than the elytra; antenne slender, rufous, just
beyond basal third, the scape almost attaining the eye; first funicular joint
as long as the next two, which are both elongate; club missing in the type;
prothorax nearly a third wider than long, the sides feebly converging and
feebly, subevenly arcuate to apical third, there more rounding to the scarcely
at all tubulate, truncate apex, which is less than half as wide as the base.
punctures coarse but not deep, dense; scutellum well developed, clothed
very densely, as also the lobe, with long and more whitish squamules; elytra
fully a third longer than wide, the oblique sides evenly and broadly arcuate,
the apex very narrowly rounded, not quite twice as long as the prothorax;
grooves moderate; intervals rather roughly punctate; legs densely albido-
squamose. Length 4.0 mm.; width 2.15 mm. Brazil (Santarem). One
i Rey fae (2t (ee. SeV DIE) (Eu, 8 ie Ra ERS 1 ew nm canonica n. sp.
Body suboval, with relatively larger prothorax, black throughout; squamules
very thin and slender, pale yellowish, loosely and subevenly distributed over
the entire pronotum, very remotely scattered over posterior two-thirds of
the elytra, a little closer thence basally, rather narrowly close on the first
interval to behind the middle and along the fourth and fifth near apical
third, whiter and not very broad, but dense, over the entire under surface;
beak (2) piceous, smooth, very slender,.thickening slightly at the extreme
base, evenly and moderately arcuate and somewhat longer than the elytra,
flattened and gradually broader apically above; antennz piceous, rather
long, slender, at basal third, the scape almost impinging upon the eye; first
funicular joint as long as the next two, the second also elongate; club notably
long and very slender, more than twice as long as wide; prothorax a third
wider than long, the sides almost parallel and nearly straight for two-thirds,
then rapidly oblique to the apex, which is about half as wide as the base;
punctures coarse, deep and dense, the lustre dull as in the preceding; scu-
tellum and lobe nearly as in canonica; elytra also nearly similar throughout,
but shorter, three-fourths longer than the prothorax; legs more finely and
not so densely squamulose. Length 3.68 mm.; width 1.85 mm. Brazil
(Santarem). (Onetemale specimen... ici. 00.656 se lee oes particeps n. sp.
8—Form rather narrowly rhombic-oval, black throughout and alutaceous, the
large and parallel pale pronotal squamules in great part denuded in the
type, but apparently abundant laterally and apically and largely wanting
basally, the scutellum small, quadrate, subglabrous and feebly impressed,
the yellowish parallel scales of the elytra in great part denuded in the type,

246

MEMOIRS ON THE COLEOPTERA

but forming a large oblong and somewhat dense sutural area in basal half,
the third interval, at least in basal half, rather closely clothed with small
uniform fulvous-red squamules; beak (co) dull, cylindric, not very slender
but strongly, evenly arcuate and fully two-thirds as long as the elytra,
strongly but not densely punctate basally and separated from the head by a
very shallow and broadly obtuse reéntrant angle; antennze medial, moderate,
the scape extending much less than half way to the eye; prothorax a third
wider than long, the sides just visibly converging and nearly straight to
about the middle, thence broadly rounding and oblique to the apex; punc-
tures moderate, not very dense and rather shallowly impressed; median
smooth line distinct and entire; elytra more than a fourth longer than wide,
with rather narrowly rounded apex and very moderately arcuate oblique
sides, twice as long as the prothorax, the grooves moderate; intervals alter-
nating in width; male with the abdomen distinctly impressed and less
squamose medially toward base, the prosternal spines in the type slender,
straight, porrect and about as long as the prothorax. Length 3.2 mm.;
width 1.4 mm. Brazil (Entre Rios). September. One specimen.

simiola n. sp.

g—Prothorax nearly as in the preceding group, not tubulate at apex......... 10
Prothorax with an abrupt and well defined apical tubulation................ II
10—Form oval, feebly subrhombic, black throughout and alutaceous; pale

slender yellowish squamules forming three loose vittze on the pronotum, with
otherwise subglabrous surface, and, on the elytra, sparse but forming loosely
aggregated lines on the second interval toward apex and in basal half, and
on the fourth and sixth in very short posterior discal lines; on the under
surface broader, whitish and dense, sparser on the prothorax beneath, except
medially; beak (9) strongly arcuate, a little more so basally, just visibly
tapering, rather dull and somewhat shorter than the elytra, the antenne
moderate, piceous and well behind the middle; prothorax two-fifths wider
than long, the sides evenly convergent and evenly, moderately arcuate to the
truncate apex, which is rather more than half as wide as the base; punctures
coarse, very narrowly separated; scutellum small, subglabrous; elytra para-
bolic, only a fifth longer than wide, but little wider than the prothorax and
slightly less than twice as long; grooves moderately deep, the intervals
confusedly punctate, the fuscous scales dark brown. Length 2.5 mm.;
width 1.2 mm. Brazil (Santarem). One example......... auguralis n. sp.

Form narrower, the size somewhat smaller, slightly shining, similar in coloration,

the very slender yellowish squamules remotely scattered over the pronotum,
but rather more abundant sublaterally and along the middle, on the elytra
sparsely and confusedly mixed with the dark red-brown squamules, some-
what closer in a posterior discal spot, and on the second interval apically,
dense and whitish beneath, sparser on the mesosternum and side-pieces, and
especially less conspicuous on the prothorax beneath; beak (<7) slender,
dull, evenly, somewhat strongly arcuate and fully three-fourths as long as
the elytra; antenne piceous, moderate and medial; prothorax a fourth
wider than long, conical, with straighter sides than in the preceding; punc-
tures coarse, deep and dense, slightly separated along the base; scutellum
small, quadrate and subglabrous; elytra a fourth longer than wide, parabolic,
very nearly twice as long as the prothorax and with rather coarse, deep
grooves; male with an extremely small erect spine before each anterior coxa.
Length 2.4 mm.; width 1.15 mm. Brazil (Para)—Baker. One example.
devincta n. sp.

Form rather stout, oval, piceo-rufous in color and not very shining, the pale

slender yellowish squamules above scattered over the pronotum but closer
at the sides and medio-basally, on the elytra sparse but closer on the first two

BRAZILIAN BARINE 247

intervals in basal half, also intervals 4-6 in short lines behind the middle,
whiter and dense beneath, but very sparse and inconspicuous on the meso-
sternum and side-pieces and prothorax beneath; beak nearly similar in the
sexes, strongly arcuate (<7), a little less so (2), dull, slender, two-thirds as
long as the elytra; antenne submedial; prothorax short, fully two-fifths
wider than long, the somewhat strongly converging sides broadly and sub-
evenly arcuate, the truncate apex more than half as wide as the base; punc-
tures rather coarse and very close, though more or less separated; scutellum
small, feebly squamulose; elytra rather rapidly parabolic, a fourth to fifth
longer than wide, somewhat more than twice as long as the prothorax, the
grooves moderate, deep; male with the abdomen distinctly impressed medio-
basally, the prosternal spines erect, very short, scarcely as long as the thick-
ness of the femur, though much more distinct than in devincta. Length
2.3-2.6 mm.; width 1.2-1.35 mm. Brazil (Entre Rios). September. Two
Specimenssa ester ewes e 7 ether 8 ous Sib oe ICRC ARR EAE La derisor n. sp.
Form narrowly oval, the size very small; surface dull; color piceous-black, the
legs, beak and antenne rufescent; slender pale squamules above sparsely
aggregated in three pronotal vitte and, on the elytra, loose, but more evident
on the second interval at apex and in basal half and on 4-6 in short discal
lines, that of the fourth rather long—from before the middle to apical fourth,
the scales whiter and close beneath, sparser on the prothorax; beak in the
type slender, strongly arcuate, only three-fifths as long as the elytra, punctate
and sparsely squamose in part; antenne medial, rufous, the oval club fully
as long as the four preceding joints; prothorax conical, a fourth wider than
long, the converging sides very feebly arcuate medially, the truncate apex
more than half as wide as the base; punctures strong, moderately separated
by the opaque interstices; scutellum small, rather closely squamose; elytra
elliptic, a third longer than wide, distinctly more than twice as long as the
prothorax, the grooves moderate but deep as usual; abdomen in the type
feebly impressed medially at base, the prosternum wholly without spicules,
the anterior cox narrowly separated. Length 2.0 mm.; width 0.85 mm.
Brazil'(Chapada)h (October! One specimen...) .. 8.65. es ancilla n. sp.
11—Body small, not stout, somewhat shining and piceous throughout; slender
pale squamules sparsely aggregated on the pronotum sublaterally toward
base, on the elytra subevenly and loosely distributed along the strial intervals,
on some of them in single lines, beneath small, slender, white and rather
sparse; beak (<7) strongly arcuate, cylindric and with the punctures well
separated, not two-thirds as long as the elytra; antennz moderate, piceous,
medial; prothorax a third wider than long, the converging sides straight for
three-fifths, there rounding to the tubulation, which is not quite half as
wide as the base; punctures rather strong, narrowly separated, the smooth
median line narrow, entire and well defined; scutellum small, quadrate,
uneven and partially squamulose; elytra convex, parabolic, with somewhat
narrowly rounded tip, more than a fourth longer than wide, relatively wider
at base than in the few preceding species and about a fourth wider than the
prothorax, much more than twice as long, the grooves abrupt and deep;
intervals finely, sparsely and confusedly punctate; male with the prosternal
spines slender, straight, oblique and not quite two-fifths as long as the
prothorax in the type. Length 2.35 mm.; width 1.3 mm. Brazil (Entre
Rios)s\ September One specimens \f.5 4-66 5-4-2020 5. ee tubulifera n. sp.
IV—Form elongate, subrhombic, black, with slender and unusually elongate
piceo-rufous legs; ground squamules of the elytra fine and blackish, the
narrow white sutural vitta abruptly ending at apical fifth; scutellum well
developed and densely albido-squamose; squamules of the entire under surface
lustrous and whitish, very close; beak evenly, rather strongly arcuate, very

248 MEMOIRS ON THE COLEOPTERA

slender, gradually thickening basally, shining, sculptured and squamulose at
the sides basally, separated from the head by a shallow reéntrant angle, sub-
similar in the sexes, as long as the elytra (@), slightly shorter (co); antenne
long, slender, rufous, very slightly behind the middle in both sexes, the first
funicular joint notably long and longer than the next two; club long, narrowly
oval and with deep sutures; prothorax a third wider than long, the sides
just visibly converging and nearly straight, rounding and oblique beyond the
middle, the truncate apex less than half as wide as the base; punctures and
transverse bright fulvous scales dense; elytra long and triangular, with
moderately arcuate sides and narrowly rounded apex, fully three-sevenths
longer than wide and evidently more than twice as long as the prothorax;
grooves rather fine; intervals with a series of strong punctures along each
side adjoining the grooves; male with the abdomen barely visibly impressed
but scarcely less squamulose medio-basally; prosternum with long and very
dense, shaggy vestiture and a deep transverse constriction just before the
middle, immediately behind which are two very short erect spines, not as
long as the thickness of the femur. Length 3.3-3.8 mm.; width 1.75-1.85
mm) Brazil (Santarem)s) lwo Specimens s). eae auricollis n. sp.
V—Body elongate, rhombic-suboval, black, the legs rather long but less slender
than in the preceding and black; transverse fulvous pronotal squamules
more slender and more widely separated, very even throughout; elytra
with the long slender squamules sparsely scattered basally, whiter and dense
on the scutellum, white’and sparse in a broad median fascia and, suturally,
to the apex, and with a small dense discal spot between posterior fifth and
sixth; beak evenly and moderately arcuate, shining and nearly smooth in
both sexes, gradually slightly thickened at the extreme base, moderately
slender and a little shorter than the elytra (co), very slender but dorsally
flattened distally, and a little longer than the elytra (9); antenne piceous
and slender, with unusually elongate suboval club, all the funicular joints
elongate (o’), or less elongate (9), the first joint fully as long as the next
two in both sexes; prothorax less (o’) or more (@) than a fourth wider
than long, the converging sides nearly straight for three-fifths, then rounding
gradually to a pronounced tubulation, truncate and half as wide as the base
(@) or less (co); punctures dense throughout; elytra triangular, a third ( 2 )
to three-sevenths (<”) longer than wide, the sides feebly arcuate, with rather
narrowly rounded tip (co), or much more arcuate, with similar tip (2),
twice as long as the prothorax (9), more (co); grooves moderate; intervals
with moderate and close, confused punctures, the dark squamules blackish;
under surface and legs with close and even, whitish squamules; male with
the abdomen feebly impressed and less squamulose medio-basally. Length
3.8-4.0 mm.; width 1.85-1.95 mm. Brazil (Chapada). March and No-
vember. Seven specimens, found on flowers in forest clearings.
longicornis n. sp.
Vi—Larger species, always much over 3 mm. in length; prosternum flat, not
transversely constricted, the scales largely radiating from a central point..2
Small species, generally gregarious on flowers in forest. clearings; prosternum

4
2—Scutellum well developed, more or less densely squamulose as usual. Whitish
vestiture, dense with the suture—posteriorly expanded slightly at apical
fourth—and two small attendant spots just before the middle, denuded,
but sometimes obsolescent through encroachment of the scaly covering,
though never completely disappearing; under surface with a dense crust of
white scales; sexual characters apparently almost wanting, the male abdo-
men very feebly impressed medio-basally, though not less squamose, the

BRAZILIAN BARIN 249

fifth segment just visibly less squamose medially; beak (<7) as long as the
head and prothorax, moderately and evenly arcuate, cylindric, not very
slender, finely, sparsely punctate and shining, squamose at the sides basally,
or similar though a little longer (9); antenne just visibly beyond (<) or
behind (@) the middle, piceous, moderate, the first funicular joint notably
elongate, nearly as long as the next three; prothorax fully two-fifths wider
than long, the sides converging and subevenly, rather strongly arcuate to
the truncate apex; elytra a fourth longer than wide to slightly more, para-
bolic, but with narrowly rounded apex, only very little wider than the pro-
thorax and less than twice as long; grooves deep, producing rather wide
partings of the vestiture; prosternum with the anterior transverse constric-
tion obsolete. Length 3.4-3.85 mm.; width 1.7-2.2 mm. Brazil (Chapada).
November, Poi SpeGliiensns s:. fs jwicis «\cbsjetmst es dcheta bia wig arm cas: merita n. sp.
Scutellum much smaller; elytra without denuded sutural line posteriorly... ...3
3—Form suboblong-oval, convex, black, densely clothed with broad parallel
white scales, forming a still more compact crust beneath, less elongate than
in the preceding; beak similar but longer, a little longer than the head and
prothorax in both sexes; antenne rufescent, submedial; prothorax shorter,
two-fifths to one-half wider than long, the converging sides from base to
apex evenly and rather strongly arcuate; apex truncate and much less than
half as wide as the base; scutellum with small, sparse squamules; elytra
oval, a fourth longer than wide, more obtuse at apex than in the preceding
and distinctly more than twice as long as the prothorax; grooves somewhat
coarse and deep; male sexual characters of the abdomen nearly similar.
Length 3.25-3.35 mm.; width 1.65-1.7mm. Brazil (Chapada). November.
PR WORS DECI CNS ee Spay. pals spatsicss Sistohicus hoe Maes Sere, ho .8 condensata n. sp.
Form narrower than in merita, the dense scales of the upper surface ochreous in
color, somewhat whiter on the pronotum in a feeble sublateral vittiform
area toward base, whiter and forming a dense crust beneath; integuments
black, the legs rufescent as in the preceding; beak (2) longer and more
slender, fully two-thirds as long as the elytra, similarly punctulate, shining
and basally squamulose, but not evenly arcuate, being straighter beyond
the antenne, which are rather long and slender and slightly behind the middle;
prothorax a third wider than long, the sides evenly and somewhat strongly
arcuate, becoming subparallel at base, the truncate apex much less than half
as wide as the base; scutellum small, only loosely squamulose; elytra a
fourth longer than wide, parabolic, but with rather narrowly rounded apex,
very slightly wider than the prothorax and barely twice as long, the grooves
deep and rather coarse, especially toward apex, where the intervals gradually
have two, or rarely one, series of squamules; prosternum nearly flat, the
squamules similarly radiating outwardly from a central point, but here
shorter than in the two preceding; transverse constriction wanting as in
both of the preceding. Length 3.4 mm.; width1.7 mm. _ Brazil (Chapada).
November Onerspeciment 2 iiy2 . Sosa «Seles» A eadioe 4 fete eh inopina n. sp.
4—Mandibles small and slender, very acute, everted in apical half. Body
oblong, subparallel, black, with rufous legs and beak; scales above pale
yellowish-brown, very close-set and uniform, dense and white on the thoracic
lobe and scutellum, whiter and dense beneath; beak (@) short, cylindric,
slender, smooth, very moderately arcuate and barely longer than the pro-
thorax, scarcely thicker but squamulose at base; antenne medial, rufous,
moderate and of the usual structure; prothorax short, nearly two-fifths
wider than long, the sides parallel and straight in basal half, then rounding
and oblique to the truncate apex, which is half as wide as the base; punctures
and squamules dense and very uniform throughout; scutellum subquadrate,
distinct; elytra more than a fourth longer than wide, somewhat parallel,

250 MEMOIRS ON THE COLEOPTERA

gradually, rather obtusely rounding behind, much more than twice as long
as the prothorax and slightly wider; grooves very moderate, narrowly
parting the vestiture, which is close and evenly confused throughout. Length
1.8 mm.; width 0.85 mm. Brazil (Chapada). November. One specimen.

occulta n. sp.

Mandibles of the usual form, straight within, the apices not everted.......... 5
5--Prothorax much shorter tham wide...) 4.00075: fae eae nar oe ore 6
Prothorax but littletshortermthamiwide.ws. seme ee coer seine te even ener 7

6—Body oval, the narrow scales above very dense, uniform and ochreous, some
of them suberect along the strial intervals, beneath very dense and yellowish-
white; integuments blackish, the legs obscure rufous; beak (o) short and
notably thick, feebly arcuate, densely punctured and squamulose almost
throughout, and barely longer than the prothorax, or (9) more slender,
slightly tapering, somewhat more arcuate, smoother and glabrous apically,
and as long as the head and prothorax; antenne moderate, obscure rufous
and medial; prothorax more than a third wider than long, the sides almost
straight and not quite parallel to somewhat beyond the middle, there rounding
and oblique to the apex, which is half as wide as the base; punctures and
scales dense and uniform throughout; scutellum and lobe very densely but
not more pallidly squamose; elytra parabolic, nearly a third longer than
wide, almost a fifth wider than the prothorax and distinctly more than
twice as long; grooves narrowly parting the dense uniform vestiture; abdo-
men (0) feebly impressed toward base medially, but scarcely less squamose.
Length 2.0-2.4 mm.; width 1.0-1.25 mm. Brazil (Chapada). March and
INoverber=-lenvspecimentss wasn 4 cw tie. aeons Caste ee eeone gregalis n. sp.
Body nearly similar but somewhat more narrowly oval, the narrow squamules
above not quite so dense and grayish-white in color, very uniform throughout,
white and very dense beneath; integuments black, with dark rufous legs;
beak (co) not quite so thick and almost as long as the head and prothorax,
nearly similar in sculpture and in the very feeble arcuation, or (2) as thick
as in the male, but a little more tapering, smoother apically, more arcuate
and fully as long as the head and prothorax; antenne similar; prothorax
a fourth to third wider than long, in outline almost similar, the apex not
quite half as wide as the base; basal lobe and scutellum very densely squa-
mose; elytra elliptic, but somewhat more narrowly rounded at tip, fully a
third () to less (9) longer than wide, evidently more than twice as long
as the prothorax; grooves slightly coarser than in the preceding, the inter-
stitial vestiture nearly similar in structure; male ventral characters nearly
similar. Length 2.0-2.25 mm.; width 0.9-1.18 mm. Brazil (Chapada).
June and’ November.’ Threespecimens.. . 7.2... 022. : adolescens n. sp.
7—Form elongate-oval, convex, the color black, with dark rufous legs; scales
above rather large and broad but parallel, narrowly separated and uniform
ochreous, dense and whiter beneath; scutellum free, densely but not more
pallidly squamose; beak (<) short, thick, feebly arcuate, strongly, longi-
tudinally sculptured and punctate and not as long as the head and prothorax,
or (@) longer, less thick and smoother, but similarly arcuate, as long as the
head and prothorax, squamose basally as in the male; antenne submedial,
somewhat more basal (9), short, the scape almost attaining the eye, the
first funicular joint as long as the next three; prothorax only a fourth or
fifth wider than long, densely punctate, the sides feebly converging and
slightly arcuate to beyond the middle, then more rounding and oblique to
the apex; elytra oval, rather narrowly rounded at tip, more than a fourth
longer than wide, much less than twice as long as the prothorax, the suberect
submedial scales among the close decumbent ones along the intervals con-
spicuous; strie very finely parting the vestiture; male abdomen feebly

BRAZILIAN BARINZ 251

impressed medially toward base. Length 2.5-2.85 mm.; width 1.2-1.35
mm. Brazil (Chapada—campo). October. Two specimens.. .lenta n. sp.
Form narrower, smaller in size, the legs feebly rufescent; dense, uniform and
narrower parallel scales above deep ochreous-yellow, the scutellum not so
free, it and the lobe still more densely but not more pallidly squamose;
dense scales beneath whiter, the ochreous pronotal covering descending
rather far down the inferior flanks; beak (co) thick and feebly arcuate,
nearly as in the preceding but less coarsely sculptured and only as long as
the prothorax, the antenne similar, rufous; prothorax very nearly as long
as wide, the sides and very dense punctuation nearly as in the preceding;
elytra similarly oval, a fourth longer than wide, less than twice as long as
the prothorax, the striation similar, but the inclined scales in single line
along the densely squamose intervals are finer and very much less noticeable;
male abdomen similarly feebly impressed medially toward base, but scarcely
less squamose. Length 2.35 mm.; width 1.15 mm. Brazil (Chapada—
campo). ‘Ocrobers One specimens. 272 Fes ek oe ochreata n. sp.

The two sections of the sixth group differ markedly in form and
size, also in prosternal structure and vestiture, those of the first
section resemble Brachygereus laxatus in habitus, and all three of
that genus in prosternal structure, there being no evident transverse
constriction, and they also have the dense scales radiating from a
central point. The sexual differences throughout the body in the
levicollis section are very remarkable, and the male prosternal
spines are quite different from anything known among the North
American representatives of the genus. It is not at all improbable
that auricollis may have been previously described, as it is a con-
spicuous small species from a rather well known faunal region.
Occulta has the mandibles slender, with the acute apices everted,
but they are not falciform as in Microbaridia. Australis belongs
to the same section as the Central American /ineella Lec.

Microforandia n. gen.

The body in this genus is small, feebly subrhombic-oval, densely
dull and with sparse short hair-like squamules, the beak rather
short, thick and dull, the mandibles simple and non-decussate and
the antenne at the middle or slightly beyond, with the first funicular
joint as long as the next two, the club oval and of peculiar structure,
‘the basal segment being two-thirds to almost three-fourths the
mass. The prosternum has a broad shallow impression along the
middle, limited at the sides by obtuse ridges, and the sculpture and
scanty hair-like vestiture extends unmodified over its entire surface;
it is unarmed in the male.. The legs are moderate in length, the
femora uninflated and unarmed, and the free divergent tarsal claws
are notably long. The type is the following:

Microforandia uniformis n. sp.—Opaque and pale brownish-testaceous in color

throughout, the somewhat sparse vestiture consisting of short suberect hairs,
uniformly distributed, transverse on the pronotum and forming a slightly denser

252 MEMOIRS ON THE COLEOPTERA

fine median line, confused on the strial intervals and scutellum and closer and
whiter beneath, except anteriorly; beak thick, moderately arcuate, sculptured,
dull and also setulose almost throughout, as long as the prothorax (@), a little
shorter (<7); prothorax (o) rather small, conical, scarcely a fifth or sixth wider
than long, the sides converging and evenly, very moderately arcuate through-
out, or (2) much larger, a third wider than long, with the nearly straight sides
feebly converging, broadly rounding and more converging apically, the apex
non-tubulate and only about a third as wide as the base in both sexes; punctures
dense; base transverse, the lobe small, rounded; scutellum moderate, subquadrate
and free; elytra triangular, with strongly arcuate sides and very narrow apex,
with deeply reéntrant sutural angle, only a fourth or fifth longer than wide,
evidently wider than the prothorax but much less than twice as.long, the grooves
very coarse, punctured along the bottom. Length 2.4-2.6 mm.; width 1.3-1.55
mm. Brazil (Santarem). Two specimens.

In the male, the abdomen is feebly impressed medio-basally but
not notably different in vestiture, the fifth segment with a large
subglabrous median area. The sexual differences in the prothorax
are unusual and very marked.

Calorida n. gen.

This genus has straight non-decussate mandibles, prominent when
closed, the rather slender, smooth cylindric beak separated from
the head by a very shallow reéntrant angle and with slender medial
antenne, having the first funicular joint very long, nearly equal to
the next three, although both the second and third are sensibly
elongate, the club small, oval, abrupt, as long as the three preceding
joints, with the first segment much less than half the mass. The
prosternum is abruptly canaliculate, but with the sulcus closely
squamose like the rest of the surface, and behind the narrowly
separated coxe it is bituberculate. The femora are very moderate
in thickness and unarmed, and the lobes of the third tarsal joint
are broad and oval, the diverging claws moderate. The arrange-
ment of the scaly vestiture is peculiar, as will be noted in the follow-
ing description of the only known species:

Calorida binocularis n. sp.—Body somewhat broadly ovoidal, deep black
throughout, closely squamulose above, the pronotum with rather dense parallel
yellowish and uniform scales, except in an abrupt rounded basal spot at each .
side at outer fourth, where the scales are blackish and narrower; on theelytra
the long scales are nearly white, dense throughout the first interval as well as
scutellum, on 2-4 in an oblique subapical area, on the fifth and sixth from base
to apical fifth, on the seventh in a line from the middle to apical fourth, and on
the marginal interval in a short line near the base, elsewhere deep black and with
narrow blackish squamules; under surface with dense white scales throughout;
beak (9) moderately slender, gradually and slightly thicker basally, evenly and
not strongly arcuate, very smooth, black, polished, with minute and remote
punctulation, becoming strong and close and with small pale squamules at the
extreme base, and nearly three-fourths as long as the elytra; head polished,
nude and finely, sparsely punctate; prothorax short, nearly twice as wide as
long, the sides strongly arcuate, subparallel basally, oblique anteriad, strongly

BRAZILIAN BARINZ 253

and closely punctate, the basal lobe well developed; scutellum also rather large,
subquadrate; elytra large, evenly oval, almost a third longer than wide, evidently
wider than the prothorax and nearly three times as long; surface moderately
and closely punctate, the grooves moderate. Length 4.3 mm.; width 2.45 mm.
Brazil (Santarem). A single female example.

Certain characters mentioned by Boheman in describing Centrinus
bicuspis lead me to think that this species may come closer to the
true Centrinus than any other known to me at present; it is at any
rate a strikingly isolated form in the Centrinini.

Odontocorynus Schon.

The three species from the Amazon Valley, here brought to
notice, so closely resemble the ordinary nearctic type, that one
would naturally fancy them to have been taken in Pennsylvania;
they differ greatly from most of the larger, elongate Mexican species
of the genus. They are rather closely allied among themselves,
belong to the salebrosus division of the genus, as defined in my
previous revision, and may be described as follows:

Thoracic basal lobe extremely short, broad and reflexed, with a narrow deep
medial sinus; abdomen in the male distinctly impressed medio-basally
Body oval, but with rather prominent humeri, deep black, only feebly
shining, the legs not pale; beak (co) strongly sculptured, straight, feebly
bent apically and abruptly at the extreme base, as long as the head and
prothorax; antenne black, near apical fourth, the outer two abbreviated
funicular joints acute within, and each with a long seta; club large, as long
as the six preceding joints, broadly ovoidal, with an acute tooth at the side
of the base; prothorax a third wider than long, the sides parallel and feebly
arcuate, gradually rounding anteriorly and becoming very oblique at apex;
squamules very inconspicuous; punctures strong and close, smaller medially,
the impunctate line obsolete; scutellum subquadrate, densely albido-squa-
mose; elytra triangular, with arcuate sides and rather strongly rounded tip,
almost a third longer than wide, more than a fourth wider than the prothorax
and nearly twice as long; grooves rather coarse, deep, opaque; intervals
coarsely, closely punctate—in single line on the sublateral intervals; basal
abdominal impression (<”) extending onto the second segment. Length
3.8 mm.; width 1.9 mm. Brazil (Santarem). One example.
amazonicus n. sp.
Thoracic lobe almost obsolete, the thickened edge reflexed and with a broad
shallow median sinus; abdomen not impressed basally in the male; vestiture
above similarly of very small, sparse and inconspicuous whitish squamules,
Tecetel eMC RU ert ote n= <Lcphvis ts, PU oltayasstecsue Silislis So, ns abinhel esr, syaha Gy cialieg 2 sleitaednisis os 2
2—Body oval, not shining, deep black, the legs, and especially the tibia, rufous,
humeri not so prominent as in the preceding; beak (<”) nearly similar, but
rather longer than the head and prothorax, the antenne nearer apical third,
the seventh funicular joint alone angulate within, the oval abrupt club as
long as the five preceding joints, denticulate at base; prothorax shorter,
two-fifths wider than long, the sides feebly converging and slightly, subevenly
arcuate nearly to the apex, there a little more rounded; punctures dense
but not quite so coarse as in the preceding, the scutellum subsimilar; elytra
shorter and more obtuse, the sides less oblique, though similarly arcuate, the

254 MEMOIRS ON THE COLEOPTERA

apex more broadly rounded, a fourth longer than wide, only a little wider
than the prothorax and not quite twice as long; surface feebly rufescent at
the sides in the type, the grooves nearly similar, the punctures not quite so
coarse. Length 3.25 mm.; width 1.5 mm. Brazil (Santarem). One male
EXAMPLE... oye/: ce crop cine he see nate ogee eyes el phe ee ee ree ae fluviatilis n. sp.
Body smaller and more narrowly oval, the whitish squamules above very minute
and inconspicuous, large, white and separated beneath, smaller anteriorly;
color black, rather shining, the slender legs not paler; beak (co) nearly as in
the two preceding, the antenne black, rather thick, at apical third, the
seventh funicular joint not much dilated and with a minute tubercle on the
inner side; club large, oval, as long as the preceding five joints, finely, densely
pubescent as usual, the basal part internally deeply concave and polished
and bounded basally by a strong and sharply pointed tooth; prothorax
more than two-fifths wider than long, the basal angles somewhat rounded;
sides feebly converging and scarcely arcuate, rapidly and evenly rounding
apically; punctures rather coarse, dense, with a partial smooth median line;
scutellum denuded in the type; elytra oval, more than a fourth longer
than wide, obtusely rounded at apex and twice as long as the prothorax;
grooves coarse; intervals with moderate and rather close-set punctures,
confused basally in large part—as well as the minute squamules, in single
lines elsewhere. Length 2.8 mm.; width 1.25 mm. Brazil (Santarem).
One amale: aa... -aaretd bot OR Re ier es ee oie ee eke eens glabellus n. sp.

The female seems to be much less abundant than the male in
this group of the genus.

Ladustaspis n. gen.

In sculpture and general facies, the single species of this genus
resembles Odontocorynus in some respects, but differs radically in
nearly all structural characters; unfortunately the male seems to
be unknown. The body is elongate-oval, with the humeri not
laterally prominent but rapidly rounding to the base, the surface
opaque and with small sparse and hair-like squamules above, the
scutellum very densely squamose. Beak moderately long, very
smooth and polished but finely punctate and squamulose at base,
separated from the head by a scarcely visible depression; it is
flattened except gradually toward base, the mandibles short and
straight but rather dehiscent at apex when closed. Antenne
slender, submedial, with notably narrow elongate-oval club, as
long as the five preceding joints, the first funicular as long as the
next two, the second as long as the third and fourth. Prosternum
flat or very faintly impressed along the middle, having at apex a
small deep median fossa; it very narrowly separates the cox and
is not bituberculate behind the latter; the legs are simple, the
thighs not inflated. The type may be described as follows:

Ladustaspis flaviscutis n. sp.—Elongate-suboval, slightly ventricose, deep black
throughout and dull in lustre, fine white hair-like squamules widely scattered on
the pronotum, gradually a little closer medially and becoming broad orange
scales on the basal lobe and scutellum, remotely and evenly scattered over the
elytra but closer and subherissate at the humeri, small, sparse,even and white on

BRAZILIAN BARINE 255

the under surface, but coarse and yellowish on the inferior thoracic flanks and
broader, very dense and pale orange on the outer part of the mesosternum, also
over the entire mes-epimera and met-episterna; beak (@) distinctly arcuate, a
little more so and gradually somewhat thickened basally, two-thirds as long as
the elytra, the slender antenne testaceous throughout; prothorax nearly a third
wider than long, the sides parallel and broadly, subevenly arcuate, more oblique
anteriorly and rounding in somewhat at base, the apex scarcely at all constricted
and feebly sinuate; basal lobe very short, gradual and broadly rounded; punc-
tures strong and dense, with fine smooth median line; scutellum large, subquadrate
and flat; elytra a third longer than wide, evenly parabolic, more than a fourth
wider than the prothorax and twice as long; grooves deep, moderately coarse,
the interstitial punctures rather strong and confused but not very dense. Length
5.6-6.2 mm.; width 2.6-2.8 mm. Brazil (Rio de Janeiro). Three female
specimens.

At first glance this species would surely seem to be affiliated with
Odontocorynus, although the characters of beak and antenne& are so
different; the discovery of the male would probably give a better
clue to its true affinities.

Cylindrocerus Schon.

This is a moderately large genus of rhomboidal, in great part
glabrous and shining species, with spots beneath and usually one
or two abbreviated elytral lines or transverse basal area of dense
pale scales above. The beak is rather long, glabrous and subevenly,
moderately arcuate, cylindric, rapidly narrower apically and sepa-
rated from the head by a generally feeble impresston, very abruptly
enlarged at the extreme base in the female of antennatus, the
mandibles straight and non-decussate, sometimes obtuse at tip as
in Chapadanus. Antenne glabrous, not very slender, usually sub-
medial (@ ), or far beyond the middle (o), the first funicular joint
much longer than the others, the club finely, densely pubescent,
with obliterated sutures, very long and cylindric in both sexes in
the more typical species, but becoming comparatively small and
oval in certain others, as in the antennatus section. The prosternum
has two moderate and variable ante-coxal spines, separated by
a canal or circular perforation (<’), or perfectly flat (2), the coxee
well separated. The legs are rather long, the femora feebly clavate,
the prothorax tubulate at apex, the scutellum small, flat and
glabrous, and the cuneiform elytra are moderately but abruptly
grooved. The thoracic tubulation and the head are very noticeably
broader in the female than in the male. The species at hand seem
to be twelve in number as follows:

Elytra each with two lines of dense yellowish scales from the base—on the third
and fifth intervals; antennal club long and cylindric in both sexes; pro-
Stemnunmeanalnenlatemimtine males 4 set ae lers ose a5) er tin = ayes) orsyeter stein ls asehes 1 « 2

Elytra each with one short slender line of dense pale scales—at the eile of the
third interval; antennal club less elongate and more oval; prosternum with
a deep circular perforation in the male; body smaller as arule........... 9

256 MEMOIRS ON THE COLEOPTERA

Elytra each with a large, transversely subquadrate basal area of dense pale scales,
extending from the scutellum to the fifth or sixth stria; antennal club long
and cylindric in both sexes; prosternum with a deep circular perforation in
the male: ‘body as in the armaius'section.. 7). 159i ee eee 13

2—Third strial interval rather rapidly dilated basally, the densely squamose
spot oblong, not extending quite through basal third, that on the fifth still
shorter, in basal fourth or fifth. Body strongly rhombic, polished, black
and smooth above, the under surface with minute and sparse punctures, the
prosternum with dense yellowish-white scales, divided by the glabrous canal
in the male, the lateral part of the metasternum, the met-episterna and sides
of the last four abdominal segments, also so clothed; beak (<) distinctly
longer than the elytra, with rather strong sparse punctures, gradually thinner
apically; antenne black, the club fully as long as the entire funicle; pro-
thorax a third wider than long, the arcuate sides sometimes nearly parallel
basally, the strong apical tubulation with some small sparse punctures;
basal lobe gradual, rounded; scutellum small, almost rounded; elytra
triangular, with narrowly rounded apex and very feebly arcuate sides, less
than twice as long as the prothorax, the grooves narrow and impunctate;
male with an impressed and sparsely pubescent area at the apex of the first
ventral and two prosternal spines, very short and only as long as the femoral
thickness to twice as long, the intermediate glabrous impression very deep
posteriorly, much less developed in the specimens with shorter spines.
Length 3.7-4.0 mm.; width 2.15-2.3 mm. Brazil (Chapada—campo).
November: ,. ‘I wo male jexamples:.£ 25. . ...d..6 eae ome moes rhombus n. sp.

Third strial interval very gradually wider basally, its densely squamose line
always extending well behind the middle and very gradually, evenly atten-
uated from base to tip, the line on the fifth interval much narrower, parallel

and very, much shorter. Acme eee os ke a ee ae 3
3—Outer squamose line of the elytra two-fifths to half as long as the inner... . .4
Outer line extremely.short and, basalbepes a4”. kc. shal: aaah Boe eee 8

4—Body smaller and notably narrow, the prothorax shorter, a third wider than
long. Form sharply rhombic; sculpture as in the preceding, the densely
squamose areas beneath also similar, except that the outer part of the meso-
sternum is also densely covered; punctures of the mes-epimera strong and
close; beak (@) distinctly shorter than the elytra, feebly arcuate, rather
thick and strongly punctured behind, rapidly slender, very smooth and
cylindric beyond, the antennz, which are inserted evidently behind the
middle, black, the club slightly shorter than the funicle; sides of the pro-
thorax feebly converging and slightly arcuate, a little more so near the very
broad tubulation, which is two-thirds as wide as the base; basal margin
with some fine punctulation, the very short and gradual lobe broadly arcuate,
with a broad feeble median sinus, the scutellum oval, wider than long;
elytra triangular, a third longer than wide, only little less than twice as
long as the prothorax, striate as in the preceding, the inner dense cuneiform
line of scales extending only through four-sevenths, the outer line three-
sevenths as long as the inner. Length 3.8-5.0 mm.; width 2.0-2.5 mm.
Brazil (Chapada). October and November. Three females.
cuneipennis n. sp.
Body larger, notably more broadly but sharply rhombiform, the prothorax less
abbreviated, never more than a fourth wider than long.................. 5
5—Antennal club (o”) about as long as the funicle, or ( 2) evidently shorter... .6
Antennal club (<) somewhat shorter than the funicle..................... a7
6—Prothorax as long as wide and more or less piceous in color; body polished,
black, the upper surface with sparse and infinitesimal punctulation, the
inner squamose line extending to apical third, the outer fully half as long as

BRAZILIAN BARINE 257

the inner; dense squamose areas of the under surface as in cuneipennis, except
that the outer tip of the strongly and densely punctate mes-epimera is also
squamose; upper surface slightly ascending anteriorly viewed in profile, the
beak (c”) unusually long, a third longer than the elytra in fully developed
stages, rather thick, strongly and sparsely punctate, gradually narrow and
smooth in about apical fourth; antenne rather long, just beyond two-thirds,
the long and slender scape piceo-rufous; prothorax with the sides broadly,
subevenly arcuate, becoming parallel near base, the strong tubulation with
numerous rather small punctures; basal margin punctate and furrowed, the
lobe small, obtuse; scutellum distinctly transverse; elytra triangular, nearly
a third longer than wide, fully a fifth wider than the prothorax and about
three-fifths longer, the grooves moderate, deep and smooth, punctured
laterally; male with a large and feebly impressed flat, slightly transverse
oval area occupying the entire median part of the first segment, and densely
clothed with narrow yellowish subherissate scales, the second segment with
a very small anterior area, clothed more sparsely with more hair-like squam-
ules of the same color; prosternal spines in the type unusually developed,
subporrect, slightly curved and fully three-fourths as long as the prothorax,
much shorter in less developed stages, the glabrous canal deep, becoming
very deeply excavated posteriorly. Length 5.0-5.35 mm.; width 2.6-2.75
mm. Brazil (Chapada). October and December. Two male specimens.
chapadanus n. sp.
Prothorax black, very nearly as long as wide; body almost as in the preceding
throughout, but a little smaller and narrower, and with the infinitesimal
punctures of the upper surface almost obsolete, the sides of the prothorax
somewhat more arcuate, the tubulate apex slightly wider in the male, the
base nearly similar; scutellum smaller and much less transverse; elytra
nearly similar, but not so long, the outer squamose line distinctly less than
half as long as the inner; under surface nearly similar, except that there are
no pale scales on the mes-epimera, which, similarly, are visible from above;
beak nearly similar but shorter, only a little longer than the elytra, the anten-
nal scape black; male with almost similar sexual characters but with much less
developed prosternal spines, varying from very short to less than half as
long as the prothorax. Length 4.8-5.0 mm.; width 2.25-2.3 mm. Brazil
(Santarem) te Sevien|Specimenss:).40ci) cla. oc baie cts ee ale mimus n. sp.
7—Form, lustre, coloration and ornamentation very much as in chapadanus and
mimus, but with shorter elytra; minute and remote punctulation evident,
more distinct, close and subrugose at the extreme pronotal sides basally;
beak (c7) nearly a third longer than the elytra, not very slender and much
more coarsely and closely punctured than in the two preceding, rather
rapidly but not abruptly narrowed and smoother in but little over apical
fourth; antennz near apical third, long, black, the first funicular joint rather
long, the outer joints gradually wider to the width of the club; prothorax (<”)
as long as wide, the sides broadly, subevenly arcuate; tubulation long; base
as in the preceding; scutellum small, quadrate, not at all transverse; elytra
but little over a fourth longer than wide, a fifth wider than the prothorax
and only one-half longer, triangular, with slightly coarser but otherwise
similar grooves, the inner densely squamose line extending almost three-
fourths, the outer slightly less than half as long as the inner; squamose areas
of the under surface as in chapadanus, except that the sides of the first
ventral are also squamose to some extent; male with the median part of
the first ventral flattened, the squamose area smaller than in chapadanus
and mimus, and composed of broader, denser and more closely decumbent
scales, the second segment not at all squamulose and with a few minute
punctures, the prosternum nearly similar. Length 5.0 mm.; width 2.45 mm.
French Guiana. Desbrochers des Loges. (Dej. in litt.). armatus n. sp.
T. L. Casey, Mem. Col. X, Aug. 1922.

258

MEMOIRS ON THE COLEOPTERA

8—Body of the usual rhombic form and feebly convex upper surface, polished,

smooth and black, the dense scales of the gradually attenuated inner line
extending four-sevenths, the outer line only a fourth or fifth as long as the
inner; dense patches of the under surface whiter than usual, arranged almost
asin chapadanus; beak ( 9 ) thick in rather more than basal half and somewhat
strongly, loosely punctate, thin, cylindrical and smooth in somewhat less
than apical half, moderately arcuate and distinctly shorter than the elytra;
antenne submedial, black, the cylindric club shorter than the funicle;
prothorax a fourth wider than long, with broadly and subevenly arcuate
sides, the broad tubulatidén much more than half as wide as the base, the
basal lobe short, gradual, punctate along the margin and narrowly truncate
at the middle of the apex; scutellum small, almost rounded, as long as wide;
elytra triangular, with broadly arcuate sides, narrow apex and moderate
smooth grooves, a third longer than wide and slightly less than twice as
long as the prothorax. Length 3.9 mm.; width 1.85 mm. Brazil (Santa-
Fem) it One females. cei eeie cts iet a hetel-caletatechernetetatetel ee reductus n. sp.

g—Scales of the third strial interval forming a small spot, only a little longer

than wide, at the extreme base; body more broadly rhomboidal. Integu-
ments deep black, polished and smooth above, finely, loosely and unevenly
punctate beneath, where the areas of dense whitish scales are confined to
the interspinal part of the prosternum, the met-episterna and narrowly at
the sides of the last four ventrals; beak (<”) evenly, rather strongly arcuate,
as long as the elytra, very evenly tapering from base to apex, cylindric and
nearly smooth, very moderately and loosely punctate at the sides basally;
antenne slightly behind the middle, the scape piceous and shorter than in
the preceding group, the funicle relatively longer, the club suboval, gradually
painted from its middle and as long as the four preceding joints; prothorax
a fifth wider than long, the sides very evenly and moderately arcuate to the
abrupt and somewhat punctate tubulation, which is less than half the basal
width; basal margin with an impressed row of punctures, the lobe extremely
broad and feeble, almost obsolete; scutellum quadrate, not quite a third
wider than long; elytra triangular, with arcuate sides, narrowly blunt apex
and notably prominent humeri, a fourth wider than the prothorax and
hardly twice as long, the grooves rather fine, smooth; male with the abdomen
scarcely more than broadly flattened medially at base and very minutely,
loosely punctulate, wholly glabrous, the prosternum with two very short
erect spines, separated by a small circular perforation, which extends ante-
riorly to the constriction in a feeble and narrowly impressed line; anterior
tibie fimbriate internally in apical half. Length 4.3 mm.; width 2.2 mm.
Brazil (Chapada—campo). November. A single male specimen.
parvinotatus n. sp.

Scales of the third interval forming a line in about basal third to fifth; body nar-

TOWEL ees tee ees ee oi Rlails elliomohke pi eieh ope teielmetieWode Netie, telidice! ols loge: te Jas (nlcelity (oF of elielinke MWe Ra kaRods Mae Mix 10

10—Dense white line of the third interval narrow, parallel and only between a

fifth and sixth as long as the elytra. Body narrowly subrhombic, piceous-
black, polished and smooth; dense scales of the under surface conspicuous
on the prosternum, the metasternum sublaterally, the met-episterna and at
the sides of the last four ventrals, sparse at the sides of the mesosternum and
finer and remote at the latero-basal margin of the prosternum, very few in
number also on the mes-epimera; beak smooth, sparsely punctate, strongly,
evenly arcuate (7), or not quite so long and more arcuate basally (9),
distinctly shorter than the elytra and with the antenne medial in both sexes,
only very gradually narrowed apically; antennal club (c”) elongate-oval, as
long as the preceding five or six joints, a little shorter and more broadly
oval (2); prothorax a third wider than long, the sides subparallel and feebly

BRAZILIAN BARINZE 259

arcuate, rapidly rounding at apex to the tubulation, which is half as wide
as the base (<”), a little wider (9); basal margin with narrow eroded line
of punctures, the lobe small, feebly sinuate at tip; scutellum small, quadrate,
feebly impressed and free; elytra elongate, triangular, more than a third
longer than wide, with broadly arcuate sides, rather strongly rounded apex
and elevated humeri, somewhat more than twice as long as the prothorax,
with moderate and very abrupt grooves; male with the abdominal base
flattened, finely, sparsely punctate and more or less rufescent, the prosternal
spines very short, erect, the intermediate surface very moderately excavated
and somewhat squamose. Length 3.6-3.75 mm.; width 1.65-1.75 mm.
Brazil (Chapada—forest). October. Three specimens..tenuinotatus n. sp.
Dense short basal line of the third interval cuneiform...................... II
11—The dense line pure white. Body larger, deep black and polished; densely
squamose areas of the under surface nearly as in the preceding, but without
scattered finer squamules; beak ( @) very slender, cylindric, smooth, evenly
and strongly arcuate and as long as the elytra, very abruptly thick, cylindric
and strongly, sparsely punctured in basal fifth; antenne subbasal, with very
short scape and long funicle, the joints thick but all longer than wide, the
club relatively small, only as long as the three preceding joints, oval, with
fine and feeble sutures and very long basal segment; prothorax a third
wider than long, the sides evenly arcuate, becoming subparallel at base, the
tubulation four-sevenths as wide as the base; line of fine dense punctures
along the base confused, the lobe very short, with a small and feeble sinus
at the middle; scutellum nearly as in the preceding; elytra almost as in the
preceding, but with less sharply elevated humeri and more notably exceeding
the prothorax in width, much more than twice as long as the latter, the
dense line of the third interval a fifth the total length. Length 4.3 mm.;
width 2.1 mm. Brazil (Chapada). March. One example.
antennatus n. sp.
The dense line of the third interval pale yellow; body smaller and more oval,
the elytra shorter, much less than twice as long as the prothorax—at least
Lies 1 amined eB ono MS ys! Geode acy eh aR Zio Sigel 'ad SNe See Re a ANE eee Maem: 12
12—Body (co) narrowly rhombic-oval, smooth, polished and deep black; head
extremely convex; beak very long, cylindric, strongly and evenly arcuate,
finely, sparsely punctate, gradually tapering distally and nearly three-
fourths as long as the body; antenne at apical fourth, the first two funicular
joints rather elongate, the outer joints not transverse, the club elongate,
claviform and about as long as the five preceding joints; prothorax only a
fifth wider*than long, the sides evenly arcuate, becoming parallel at base,
the tubulation fully half as wide as the base, where the marginal impressed
line is fine and only feebly punctulate; scutellum small, flat, quadrate, very
little wider than long; elytra barely over a fourth longer than wide, narrowly
parabolic, with elevated humeri, three-fourths longer than the prothorax and
a fourth wider, the grooves moderate, the squamose line extending through
barely more than basal fourth; male abdomen feebly, irregularly impressed
and with moderate but close-set punctures medio-basally, and with a few
squamules behind each coxa, the prosternal spines arcuate and half as long
as the prothorax in the type, the cavity between them deep, circular and
moderate in size; anterior tibiae not distinctly fimbriate within. Length
3-75 mm.; width 1.7 mm. Brazil (Chapada—campo). November. One
igre spores oye! (Sh Gig yf: Ae RE ee A RS ae ae ee debilis n. sp.
Body (co) somewhat more rhombic, deep black, smooth and polished; beak
much shorter, cylindric, evenly and rather strongly arcuate, sparsely but
very distinctly punctate, gradually tapering distally and but little longer
than the elytra; antenne slightly behind two-thirds, shorter, but with

260 MEMOIRS ON THE COLEOPTERA

similar long scape, the first funicular joint relatively longer, exceeding the
next two, the outer joints more compact and distinctly transverse, the club
narrowly cylindric-oval, as long as the preceding five joints; prothorax fully
a fourth wider than long, the sides more strongly arcuate, becoming parallel '
and feebly arcuate in nearly basal half; tubulation longer and more con-
stricted, fully half as wide as the base; surface with the infinitesimal punc-
tures of the preceding becoming unusually distinct and less remote laterally;
basal line feebly eroded, the lobe not evenly rounded as in the preceding, but
having a feeble apical sinus; scutellum quadrate, wider than long; elytra
but little over a fourth longer than wide, nearly as in the preceding but
rather more narrowly rounded at apex, and with the micro-punctulation
laterally more evident and closer; squamose line relatively shorter, a fourth
the total length; male abdomen feebly impressed medio-basally and with
fine, sparse punctures, each bearing a very fine whitish hair-like squamule,
these wanting behind the coxz; prosternum nearly similar, but with the
erect spines very short; anterior tibie fimbriate internally toward apex.
Length 3.65 mm.; width 1.85 mm. Brazil (Chapada—campo). October.
One male specimenwsaticdeisns = acclecttine pine croe acted open mediocris n. sp.
13—Form elongate and rhombic-suboval, deep black, smooth and _ polished;
dense yellowish-white scales of the prosternum sometimes ascending to the
lateral part of the tubulation above, the pronotum also with a small lateral
patch at base; sides of the metasternum, the met-episterna and sides of the
last four ventrals also densely scaly; elytra with a large transverse basal
area, from the scutellum to the fifth or sixth stria, also covered with dense
whitish scales; beak (co) evenly arcuate, gradually tapering, coarsely,
densely punctate at the sides and as long as the elytra, smoother and more
cylindric distally, or (2) shorter than the elytra, more sparsely but coarsely
punctate basally, the thin smooth apical part occupying more than half the
length; antenne submedial (9), near two-thirds (co), the club cylindric
and long but shorter than the funicle in both sexes; prothorax a fourth (<7)
to third ( 2) wider than long, the converging sides feebly, subevenly arcuate,
the tubulation and head much broader in the female; scutellum small,
subquadrate, free; elytra triangular, with strongly rounded apex, a third
longer than wide; grooves deep, unusually punctate, the intervals feebly
convex; surface somewhat undulated; male abdomen with a large rounded
medio-basal area, flattened and closely clothed with slender fulvous squam-
ules, the prosternal spines short, separated by a large circular perforation.
Length 5.0-5.2 mm.; width 2.35-2.7 mm. Venezuela. Two specimens
from Desbrochers des Loges and as named by him......... bisignatus Jekel

Some of the species allied to armatus, having two squamose lines
on each elytron, are difficult to discriminate; armatus itself, as here
described, is quite distinct from the others in the abdominal sexual
characters of the male, and reductus, in the very short external line
and small size. The intraspecific constancy of these squamose
areas in form and extent is very remarkable, and affords an efficient
specific index.

Dimesus Pascoe

The body in this genus is of rather more oval form than in
Cylindrocerus, the body, as a rule, in great part shining and glabrous,
and such vestiture as may appear is very different in character and
distribution. In the typical species conforming to the Parana

BRAZILIAN BARIN 261

type—Centrinus geminus Pasc.—there is a rounded or oblique
medial spot of dense narrow fulvous scales, but in other species the
elytral vestiture may form a basal and a post-medial irregular
fascia, or the upper surface in rare cases may be completely glabrous.
The beak is long and strongly, subevenly arcuate, sometimes
cylindric and sparsely punctured throughout, or compressed at the
sides basally and more coarsely, closely sculptured and separated
from the head by a feeble to rather deep broad reéntrant angle.
The antenne are rather long and slender, submedial in insertion
and with notably elongate first funicular joint, the club elongate-
oval and never noticeably thick, the sutures distinct. The anterior
coxe are moderately to widely separated, the prosternum abruptly
but not very widely or deeply canalate, often with a deep anterior
rounded fossa, bearing (co) two spines, well developed to vestigial,
and, when large, always broader and compressed toward base. The
legs are slender, the tibia straight, the prothorax abruptly tubulate
at apex and the elytra almost sculptureless to deeply grooved.
The species are rather numerous and unusually diversified in
appearance, those at present in my collection forming four sub-
generic groups, as follows:

Elytra each with a median fulvous spot of dense scales, the striz obsolete or nearly
_so basally; abdomen finely, sparsely punctate; male prosternum conspicu-
ouslyianimedamMby picaleD cess ieaiti Rees haWs lee ia Neal ies Siehes IEDs aia I
Elytra and entire upper surface completely glabrous, the striz obsolete only at
the base; abdomen closely punctate; prosternal spines of the male con-
SPL CUOUS emer eR Te Tears el aeons Re aller Nee aed re eefototane ada eta ae Ape ret a II
Elytra with basal and post-median squamosity, the strie deep, entire and groove-
like—at least in the female; abdomen closely punctate; male prosternum
moderately to vestigially armed; body stouter....................... Ill
Elytra wholly glabrous, excepting a short squamose line behind the scutellum
and sometimes at the sides of the latter; prosternal spines wanting or ex-
EFEITElVanveStt cial wemeweni ees = del Str c este .3 DETAR crate tel guts hist eke to re, Svonttond 2 xi IV
I—Body oblong-suboval, strongly convex, smooth, polished and deep black
throughout, the fulvous spots on the elytra rounded, sometimes mutually
tangent at the suture; under surface with fine and sparse, white squamules,
less sparse on the metasternum and larger at the sides of the prosternal
canal; beak (o) cylindric, evenly and strongly arcuate, feebly tapering,
moderately and remotely punctate and polished, two-thirds as long as the
body; antennz slender, rufous and medial, the scape extending barely more
than half way to the eye, the first funicular joint as long as the next three,
the elongate-oval club about as long as the preceding five joints; prothorax
large, subquadrate, scarcely a fifth wider than long, the subparallel sides
evenly and distinctly arcuate, gradually more strongly rounding anteriorly
to the tubulation, which is very much less than half as wide as the base;
base more arcuate medially but not lobed; surface very smooth; scutellum
smooth, transversely quadrate, free behind but scarcely so at the sides;
elytra a third longer than wide, a fifth wider than the prothorax and two-
thirds longer, the oblique sides feebly arcuate, subsinuate just before the
rather narrow but obtusely rounded apex; grooves deep, obsolescent in
basal third; male abdomen broadly, feebly impressed or flattened medio-

262

MEMOIRS ON THE COLEOPTERA

basally, but not differently sculptured or clothed, the prosternal spines
oblique, gradually broader and strongly compressed basally, as long as the
prothorax or slightly longer. Length 4.4-4.8 mm.; width 2.2-2.35 mm.
Brazil (Santarem). Two male specimens. . Se .thoracicus n. sp.

Body as in the preceding but narrower, with much smaller nrothor and with

more oblique elytral squamose areas, which often meet on the suture; beak
(co) nearly similar but shorter, as long as the elytra, or (9) rather shorter
than the elytra and less arcuate, being more arcuate basally than beyond;
antenne rufous, submedial in both sexes, nearly as in the preceding but
somewhat shorter, the first funicular joint almost as long as the next three;
prothorax fully a fourth wider than long, the sides subevenly and strongly
arcuate, gradually more parallel posteriorly, the tubulation but little less -
than half as wide as the base, the latter similar and also finely beaded,
somewhat as in Cylindrocerus; scutellum rather larger and less transverse,
very smooth and quadric; elytra nearly similar but more narrowly rounded
at apex, a fourth wider than the prothorax and not quite twice as long, the
grooves not so completely obsolete basally, being traceable as very fine lines,
which are distinct in the female; male abdomen with a narrower and deeper
but unmodified impression along the middle basally, the prosternal spines
less developed and much less broadly compressed basally, varying from a
rudimentary triangular tubercle to four-fifths as long as the prothorax.
Length 3.3-4.2 mm.; width 1.65-2.1 mm. Brazil (Santarem). Five males
and: one femalenpreerersesihs 3... creeks eer ee eee lztulus n. sp.

Body still smaller and narrower, with shorter prothorax, the squamose areas of

the elytra broadly confluent on the suture, forming a large transversely
reniform spot; color, lustre and sculpture almost similar; beak (c’) more
slender, strongly, evenly arcuate, rather finely, sparsely punctate and as
long as the elytra; antenne rufous and nearly similar; prothorax more
than a third wider than long, the strongly arcuate sides becoming parallel
basally, the tubulation half as wide as the base, the latter and scutellum
almost similar; elytra nearly similar in structure, but relatively narrower
and more elongate, a fifth wider than the prothorax and distinctly more
than twice as long, the humeri still more narrowly rounded; grooves obsolete
at base; male abdomen with a feeble basal impression, almost wholly im-
punctate and more sharply defined along the bottom than in letulus, the
prosternal spines forming short and very obtuse angular tubercles in the
type. Length 3.4 mm.; width 1.65 mm. Brazil (Santarem). One speci-
LOLS Se ae LT re Mee ac cic i hh OPER Maan Oars oid a be macilentus n. sp.

II—Form stouter, color deep black throughout, very shining, wholly glabrous

above, each of the rather strong close punctures of the under surface bearing
a minute whitish squamule; inferior flanks of the prothorax with feeble
wavy longitudinal ruge; beak strongly arcuate, compressed basally but
almost impunctate, nearly three-fourths as long as the body, relatively not
quite so long, less arcuate and much more arcuate basally than apically in
the female, this feature also visible to some extent in the male; antennz
slender, blackish, medial (¢) or slightly beyond (<), the scape extending
about half way to the eye, the first funicular joint fully as long as the next
three, the elongate-oval club longer than the preceding four joints; prothorax
campanulate, a third wider than long, the strongly arcuate sides becoming
parallel at base, the tubulation not half as wide as the base, though nearly so
in the female; basal margin with a deep eroded line, the lobe gradual and
rounded; scutellum strongly transverse, narrowed slightly at base; elytra
only a fourth or fifth longer than wide, with the usual rather distinct humeri,
the oblique sides broadly arcuate and the apex not very narrowly rounded,
distinctly wider than the prothorax and three-fourths longer, the grooves

BRAZILIAN BARIN 263

deep and abrupt, strong but rapidly becoming obsolete at the basal margin;
male abdomen almost wholly unmodified, the prosternal spines oblique,
slightly curved, only slightly compressed and broader basally and black as
usual, as long as the prothorax in the type, the pronotum, as viewed in
profile, strongly convex behind the apical constriction. Length 4.0-4.5 mm.;
width 2.25-2.55 mm. Brazil (Chapada). November. A single pair.
inornatus n. sp.
Il1I—Form rather stout, rhombic-suboval, shining, deep black, the pronotum
smooth and glabrous, the elytra finely, sparsely, rugulosely punctate through-
out; intervals 1-6 with narrow close fulvous scales in about basal fourth,
2, 4 and 6, and in less degree 3 and 5, also with similar scales, in lines about
a fourth the length just behind the middle, the rest of the surface with very
fine sparse blackish hair-like squamules; under surface strongly, closely
punctate, each puncture with a minute whitish squamule, the inferior thoracic
flanks with smaller punctures and longitudinally wavy rugiform lines; beak
strongly compressed basally, the flattened sides punctured above and fur-
rowed beneath, with smooth interstices, strongly arcuate, more so basally,
especially in the female, two-thirds as long as the body, gradually tapering
distally; antenne dark rufous, slightly beyond (<”) or behind ( 2 ) the middle,
the first funicular joint as long as the next four and fully as long as the
narrow oval club; prothorax a fourth or fifth wider than long, the subevenly
arcuate sides not quite parallel basally; tubulation and head much wider in
the female and almost half as wide as the base; surface with the minute
punctures distinct laterally; groove along the basal margin coarse and deep;
scutellum obtrapezoidal, smooth; elytra parabolic, a fourth longer than
wide, with the usual rather prominent humeri, less than twice as long as
the prothorax; grooves deep to the base (9), becoming obsolete near base
(1); abdomen (<7) with a simple impression along the middle basally, the
prosternal spines three-fourths as long as the prothorax in examples at hand,
the anterior tibiz fimbriate within; canal abrupt, nude, alutaceous and
deep. Length (2 o&, 4 2) 5.5-5.8 mm.; width 2.85-3.1 mm. Brazil
(Rio de Janeiro). October and November............... bifasciatus n. sp.
Form shorter, the size much smaller; coloration, lustre and sculpture throughout
similar, except that the elytra have the long narrow fulvous scales rather
dense throughout, wanting at the sides—more broadly at basal third—and
unevenly at the apex; beak (<) similar but with the compressed sides
strongly punctate throughout, the submedial and rufous antennz with the
first funicular joint rather longer than the next four and slightly longer than
the club; prothorax a fourth wider than long, the arcuate sides becoming
more parallel basally, the tubulation similarly well constricted; eroded line
along the base and small obtuse lobe similar; scutellum similar, very smooth;
elytra nearly similar but somewhat more strongly rounded at tip, the grooves
relatively coarser, conspicuous and deep to the basal margin in the male,
which has the abdomen nearly as in bifasciatus, the prosternal spines vestigial
and in the form of very small angular tubercles in the type, the very long
inner fringe of the anterior tibie similarly not quite attaining the base.
Length 4.3 mm.; width2.3 mm. _ Brazil (Rio de Janeiro). November. One
SPECIE eR ea tele eee ee oe oelarsie hele DLN S semitectus n. sp.
Form narrower, subrhombic-oval, shining, black, the sculpture above and beneath
nearly as in the two preceding; elytra with only a very few remotely scattered
fine yellowish hair-like squamules at base and, behind the middle, three or
four scales on the second and a short loose line on the fourth interval; beak
(co) nearly as in the preceding, the rufous antenne almost similar; prothorax
similar but shorter, nearly a third wider than long, the tubulation a little
broader and not so distinctly sinuate medially as in semitectus; base and

264

MEMOIRS ON THE COLEOPTERA

scutellum nearly similar; elytra almost similar, but narrower, relatively
more elongate and somewhat more than twice as long as the prothorax;
grooves as in bifasciatus, but not so obsolete basally in the male as in that
species, wholly obliterated however at the extreme base; male abdomen
similar; prosternum with a very feeble obtuse tubercle before each coxa in
the type, the inner fringe of the anterior tibia not quite so long and more
fulvous. Length 4.25 mm.; width 2.18 mm. Brazil (Rio de Janeiro).
November: (One sSpecimenienns <j .aaccee meee Sheer rubricornis n. sp.

IV—Elytra with a dense line of slender white squamules for a short distance

Elyt

behind the scutellum on the first interval, but without trace of squamules at
the sides of the scutellum; size smaller, rhombic-oval, deep black and
polished, smooth and wholly glabrous above, excepting as mentioned, the
under surface with small punctures, each bearing a small slender white
squamule, wanting on the inferior, finely and sparsely punctured thoracic
flanks, except anteriorly and more broadly toward the canal, where they
are more silvery; beak (<) shorter than in the preceding section, fully half
as long as the body, strongly arcuate, cylindric and strongly but sparsely
punctured, more rapidly tapering distally, the antennze submedial, black,
the first funicular joint much shorter, barely as long as the next three, the
club thicker, as long as the first two together; prothorax a fourth wider than
long, the sides slightly converging and feebly arcuate, rapidly rounding
anteriad to the tubulation, which is less than half as wide as the base; surface
smooth, very finely punctured at the sides; base punctulate, the groove
obsolete, the lobe very short, broad and indistinct; scutellum strongly
impressed, obtrapezoidal, nude as usual; elytra a third longer than wide,
fully twice as long as the prothorax, the moderately oblique sides feebly
arcuate, the apex rather obtusely rounded; grooves very deep and abrupt,
attaining the base without the slightest reduction; abdomen (<7) broadly
flattened medio-basally, the equally dense small punctures nude; prosternum
without vestige of ante-coxal spines, the median canal very deep and abrupt,
with the bottom nude and alutaceous; anterior tibie with the inner fringe
shorter than in the preceding section and obsolete basally. Length 3.7-3.85
mm.; width 2.0-2.15 mm. Brazil (Santarem). Three male specimens.
sulcipectus n. sp.
ra with a short line of slender loose squamules behind and at each side of
the scutellum; size much larger, deep black, shining, the prothorax rufous,
with the tubulation piceous; punctures of the hind body, beneath, each
with a minute whitish squamule, these also present near the prosternal
canal; the thoracic flanks are glabrous and with very feeble sculpture;
beak (c”) rather thick, strongly arcuate, more so basally and very strongly
compressed, the flattened sides coarsely and closely punctate near the base,
as long as the elytra, or (9) not quite so arcuate, more slender, much less
compressed, minutely punctured, coarsely and closely so near the base and
three-fourths as long as the elytra; antenne slender, rufo-piceous, slightly
beyond (<) or behind ( 2) the middle, the first funicular joint as long as the
next three and as long as the club; prothorax a fourth wider than long,
the broadly arcuate sides gradually parallel basally, the tubulation two-fifths
() or three-sevenths (9) as wide as the base; surface smooth; basal
margin broadly arcuate medially, with the usual groove; scutellum sub-
quadrate, impressed, larger in the female; elytra a third ( 9 ) or three-sevenths
() longer than wide, with prominent humeri and feebly, medially arcuate
oblique sides and somewhat broadly arcuate apex, more strongly rounded
(@), twice as long as the prothorax (o), much less (9); grooves strong
and smooth, unchanged basally in either sex; male abdomen distinctly
impressed medially at base, the fringe of the anterior tibiz as long as the

BRAZILIAN BARINZ 265

tibial width, the prosternum with two extremely minute angular ante-coxal
tubercles, the canal dilated at apex and base, very fine medially; in the
female it is broad, shallow and parallel. Length 5.5-6.0 mm.; width 2.8-3.1
mm. Brazil (Santarem). The female is from an unknown region and was
sent by Desbrochers des Loges.........---2-+ sees + eee rubricollis n. sp.

There seems to be scarcely a doubt that the male and female
described as rubricollis belong to the same species, although the
sexual differences are unusual. Possibly bifasciatus, from Rio de
Janeiro, a rather large species, may have been previously described.

Dactylocrepis Schoén.

In this genus the body is elongate and subrhombic, glabrous,
smooth and shining, the beak long, slender, evenly arcuate and
more or less compressed basally, the antenne slender to slightly
thickened, never with the first funicular joint relatively so elongate
as in the preceding, the club long, slender and gradually sharply
pointed and subequally segmented by the distinct sutures. The
prosternum in the male, the only sex known to me, is shallowly
canalate, the canal parallel or gradually broadening but not deeper
posteriorly between the wide, erect and strongly compressed tri-
angular ante-coxal plates, a form feebly suggested in Dimesus, the
cox well separated. The legs are long, with rather slender femora,
long straight tibiae and notably slender tarsi, the anterior sub-
quadrately dilated and flabellate, with feather-like erect black
vestiture at the sides, the third joint very peculiar, the rectangular
emargination extending nearly to the base, the lobes long, slender
and parallel; the anterior tibiae of the male have a long dense
internal fringe of fine hairs. The prothorax is almost exactly as
in Dimesus, the scutellum subquadrate and free, the elytra with
fine subobsolete striation, prominent humeri and very prominent
subapical discal elevations, the striation at apex coarse, deep and
distorted. The species known to me are the following:

Antenne blackish, only moderately long, the first two funicular joints equal in
length and moderately elongate, the outer joints as wide as long. Body
highly polished, the elytra gradually toward the sides, and the legs, rufous;
beak (<7) two-thirds as long as the body, rather strongly arcuate, moderately
compressed, somewhat finely, sparsely punctate, more minutely and closely
so distally, where the diameter is gradually reduced; antennz at apical
third, the long rufescent scape extending two-thirds to the eye; prothorax
nearly as long as wide, the sides feebly convergent and slightly arcuate,
gradually broadly rounding anteriad to the tubulation, which is less than
half as wide as the base, the latter gradually broadly lobed and with fine
eroded marginal line medially; scutellum flat; elytra slightly wider than
the prothorax and evidently less than twice as long; striae, except apically,
very fine and feeble and with feeble distinct undilated punctures, the gently
oblique sides very feebly arcuate, the apex obtusely rounded; under surface
finely, remotely punctulate, the abdomen (@) very shallowly and widely

266

MEMOIRS ON THE COLEOPTERA

impressed medially at base and there more closely punctulate; parallel
erect prosternal plates barely two-fifths as long as the prothorax and almost
as wide as long, their outline posteriorly broadly rounded toward apex, the
anterior angle sharp and right; the canal is deep, shining and parallel through-
out, continuing shallowly between the coxe. Length 6.0 mm.; width 2.6
mm. Brazil (Benevides). July. One example.......... lamellifera n. sp.

Antenne dark rufous, longer and very slender, all the funicular joints elongate,

the first two or three notably so, the club between three and four times as
long as wide, slender and very evenly fusiform; prosternal canal (<) grad-
ually and greatly broadening between the narrower and longer compressed
plates, which are gradually finely acuminate from near the base; beak with
a cluster of a few erect hairs beneath near the apex..................00. 2

2—Body somewhat broader, vernicate, deep black throughout, the prothorax

rufous; beak (o) evenly and strongly arcuate and nearly three-fourths as
long as the body, only feebly tapering distally, moderately compressed and
with rather small, even and sparse punctures; antenne very slender and
long, the scape extending four-sevenths to the eye, the first three funicular
joints notably elongate, the second the longest, the third the shortest, of
the three; club a little longer than the three preceding joints; prothorax a
fifth wider than long, the strongly and evenly arcuate sides gradually be-
coming parallel basally, the tubulation about two-fifths as wide as the base,
which is margined by a row of moderate punctures, the lobe more rapidly
formed than in the preceding, smaller, short and rather.obtusely rounded;
scutellum very smooth, quadrate, feebly impressed along the middle; elytra
with more oblique sides than in the preceding, very feebly arcuate, except
behind the humeri and before the rather rapidly and obtusely rounded apex,
slightly wider than the large prothorax and nearly three-fourths longer;
stria, except distally, all but completely obsolete, the punctures feeble but
visible; abdomen (0) medio-basally much more distinctly impressed and
very finely, rather closely punctulate, the prosternum medially black and
with sparse, pale, suberect squamules, the canal shallow but abrupt and
glabrous, the very compressed spiniform plates more than half as long as the
prothorax, their posterior outline roundly rectangular at base, the anterior
feebly sinuate. Length 6.4 mm.; width 2.9 mm. Brazil (Santarem). One
ERATION 28. ond ect 5 52 a eco A ea el ruficollis n. sp.

Body much narrower, smaller in size, deep black, glabrous and vernicate through-

out; beak (co) nearly three-fourths as long as the body, strongly arcuate
and compressed, thinner and somewhat flattened distally, the flat compressed
sides, finely, sparsely punctate, with a longitudinal impression; antennz
long, slender, somewhat as in the preceding; prothorax but little shorter
than wide, the broadly and evenly arcuate sides not becoming quite parallel
at base, the tubulation evidently less than half as wide as the base, which is
finely grooved, the lobe very gradual, with its apex strongly rounded;
scutellum quadrate, with rounded angles, feebly impressed along the middle;
elytra nearly as in the preceding but narrower, with rather less oblique sides,
more distinctly wider than the smaller prothorax and almost twice as long,
the discal striz a little less obsolete and similarly punctulate; male abdomen
and prosternal spines nearly similar, the prosternal surface with smaller,
minute, sparse and slender squamules, the canal shallow but sharply defined
throughout its length. Length 6.2 mm.; width2.75mm. Brazil (Santarem).
Onevexamiplene 30 bs. dale. Rate ere aie pinnatitarsis n. sp.

A—Nearly similar but still narrower; beak (<) almost similar, except that the

sides are less compressed, broadly, evenly convex and not-longitudinally
impressed; antennz very slender, but distinctly less elongate; prothorax
similar, except that the sides are more strongly arcuate anteriorly, becoming

BRAZILIAN BARINZ 267

parallel toward base; elytra nearly similar but with more elevated humeri,
and with the striz still less obsolete, being in fact distinct though fine, the
punctures subsimilar; male abdomen nearly similar, the prosternal spines
half as long as prothorax, their posterior basal rounded angle more obtuse,
the canal narrower anteriorly, more rapidly dilated behind and with less
abruptly defined margins. Length 5.5 mm.; width 2.4 mm. Brazil
(Santarem)=>, One Specintetie (a2 saeco nec 2 s)e <4) < aieiar- .tubifera n. subsp.

I have not seen the type of this genus—Cylindrocerus flabellatarsts
Boh., from Cayenne—but it is in all probability different from any
of the above. The female seems to be rare.

This genus has given rise to some misunderstanding. According
to Lacordaire it is a Madarid, with widely separated anterior coxe
and a prosternum armed with two short subapical spines in the
male. The very peculiar anterior male tarsi described by that
author, coincide closely with those of the present interpretation of
the genus, which is unmistakably a Centrinid near Cylindrocerus. .
The fact that the type species was described as a Cylindrocerus in
the work of Schénherr, would seem to show that the present iden-
tification is correct, but what the Dactylocrepis of Lacordaire can
be, I have no means of knowing at present. It is stated by Schén-
herr that the pygidium is concealed in Dactylocrepis, while in that
genus as interpreted by Lacordaire, the pygidium is uncovered.

Nedestes n. gen.

The body in this genus is broadly rhomboidal, polished and
glabrous, the beak very long, cylindric, strongly and evenly arcuate,
the long slender antennz at basal fourth, the scape almost attaining
the eye, the funicular joints all elongate, the first three notably so
and diminishing more or less regularly in length, the club long,
slender, subcylindric, gradually finely pointed at apex, with its
basal segment half the mass, the sutures fine. The mandibles are ex-
traordinary—rather long, straight, apparently not contiguous when
closed and very difficult to describe adequately in language; viewed
dorsally there are two segments, the basal the shorter, hollowed
dorsally, with the sides of the hollow elevated, the apical segment,
oval, rounded externally at base, obliquely excavated longitudinally
throughout the length of its upper surface, with the apex rounded;
the basal segment is deeply constricted internally near the base;
the tip of the beak above the mandibles is broadly sinuate. The
beak is separated from the head by the feeblest possible incurvature
when viewed in profile. The anterior coxe are rather widely
separated, the prosternum in the male with two long, porrect and
outwardly curvate processes, separated at base by a very deep
circular excavation. The legs are rather long, the tibie straight,
the anterior not fimbriate in the male, except briefly so at apex,

268 MEMOIRS ON THE COLEOPTERA

the tarsi all broad, closely punctulate and pubescent above, and
with a dense brush of erect fulvous sete throughout beneath; the
sete bristle also along the sides in fimbriate form. The prothorax
is abruptly and strongly tubulate at apex, the basal lobe gradual,
with its apex deeply sinuate, the scutellum transverse and free,
and the elytra with prominent humeri and deep coarse entire
grooves, punctured along the bottom laterally. There are two
species at hand as follows:

Body large and stout, rhombic, convex, deep black throughout, the elytra with
feeble piceous tinge, wholly glabrous and with fine sparse punctulation above,
still remote but stronger beneath; beak (co) very strongly arcuate and
almost as long as the body, evenly cylindric and rather slender through-
out and finely, sparsely punctate, closely and coarsely so at the sides toward.
base, not in the least compressed; antennz piceous, very long, the slender
club nearly as long as the four preceding joints; prothorax only a fifth or sixth
wider than long, the sides strongly arcuate, becoming not only parallel but
somewhat incurvate at base, the broad strong tubulation not quite half as
wide as the base; scutellum with a few punctures at base, transverse, some-
what narrowed basally, truncate and declivously impressed at apex, with
sharp angles; elytra short, barely longer than wide, the oblique sides nearly
straight, the apex broadly, evenly rounded, nearly a fourth wider than the
prothorax and one-half longer; posterior discal elevation moderate but dis-
tinct; grooves a little coarser at tip; surface with fine but deep, remote
punctures as on the pronotum; male abdomen simply flattened at base, but
otherwise unmodified, the median line deeply impressed at the extreme
base; prosternal spines extending beyond the head by a distance equal to the
length of the head and prothorax. Length 9.5 mm.; width 5.6 mm. _ Brazil
(Chapads)... ‘October: "One sspecitiemss).-jcc,.c 0.44 sensei sarpedon n. sp.

Body much smaller and not so stout, shining and deep black throughout; punctu-
lation above similarly remote and a little finer, the constriction at the base
of the apical tubulation similarly rather coarsely punctured throughout the
width; beak (<) slender, cylindric and strongly arcuate, similarly more
strongly so medially than toward base or apex, finely punctate, coarsely but
loosely so toward base, a little shorter than the body; antennz piceous,
almost similar, the club very slender, gradually pointed from about its
middle and as long as the four preceding joints; mandibles nearly similar;
prothorax similar but almost a fourth wider than long; scutellum transverse,
narrowed at base, flatter and with the apex broadly, obtusely angulate;
elytra as long as wide, the humeri similarly prominent, the oblique sides
more arcuate, the apex somewhat more strongly rounded; grooves almost
similar, abrupt and deep; male abdomen scarcely more than flattened
basally, more strongly punctured but not medially impressed at base;
prosternal spines shorter, not quite as long as the prothorax in the type;
tarsi above darker and less fulvous. Length 7.0 mm.; width 4.25 mm.
Brazil'(Santarem):, One example..°.. 52. !.0........2. mandibularis n. sp.

The genus Xenisus, of Pascoe, would seem to be related to the
one here described, though no mention of the mandibles is made
by the author, who, however, states that the beak is longer than
the body, that the first funicular joint is as long as the club, while
here it is much shorter, the prothorax transverse, which could

BRAZILIAN BARINA 269

hardly be said of Nedestes, and finally that the strial intervals are
very convex and that the metasternum at the sides is covered with
golden-yellow scales, neither of which characters is suggested here,
the intervals being flat and the entire surface glabrous. The color-
ation of the body in the type of Xenisus is also quite different, which
is a suggestive consideration. It is probable that the habits of both
these genera are very similar to those of Balaninus.

It will be noted that in the preceding enumeration of the genera
and species of the Centrinini, I have not been able to even define
the genus Centrinus itself. This was founded upon the Baris bicus-
pis, of Germar, which, according to the descriptions, differs very
much from anything at present known to me. Possibly the genus
called Calorida above, may approach it closely; this is known to
me only by the female, and is founded upon a comparatively small
species.

Tribe LIMNOBARINI

As in the case of the Centrinini, it should be stated that the limits
of this tribe are not well defined, and there is no very clearly marked
boundary separating the two. In fact some genera, such as the
Nicentrids, having prominent and non-decussate mandibles, might
almost as well be considered a part of the preceding, as of the present
tribe. It should be understood, in this connection, that the Limno-
barini are merely an association of those Centrinids which have the
body parallel in form, or notably narrow, elongate and devoid of an
evidently rhombic outline. They include all sorts of structural
peculiarities, excepting the essential features characterizing the
tribes coming before the Centrinini and those which follow, such
as the Madarini and Barini, and, on the whole, it is as sharply
isolated as almost any other of the Barid tribal groups that can be
at all well differentiated, all of them being inconstant in at least one
or two structural characters used to define them. In the nearctic
fauna, such diverse genera as Calandrinus, Anacentrus, Haplostethus
and Bartlepton belong here, and, in the European fauna, several
genera having a parallel form of body, besides Limnobaris itself,
should also be included.

One peculiarity of the Limnobarini, as here organized, is the
comparatively large number of genera necessary for the known
species, there being, as proposed, only about 2.8 species to the genus
as a ratio, seeming to indicate that the tribe includes a number of
groups which are of very ancient origin, like the nearctic Evsonyx
and related monotypic genera, and also in all probability the
tropical Madopterini.

The Brazilian genera of Limnobarini, so far as recognized, are
as follows:

270 MEMOIRS ON THE COLEOPTERA

Mandibles straight, non-decussate and not at all dentate within, their upper
surface somewhat ridged along the median line basally, their external outline
sinuate anteriorly, the apices obtusely lobed; body parallel and convex,
loosely squamose, the non-tubulate prothorax and elytra equal in width
prosternum not sulcate, the coxee moderately separated; tarsal claws free.
liype'C: rotundicollts: NOv..|x Saeteheke Mohn aa on eke eee Chepagra

Mandibles prominent when closed and non-decussate, but with their inner
margins more or less obviously dentate or basally notched; tarsal claws
freevand divergent... 2 su sic caPiei ete occ iays oUt ls ate ne ores ny ee 2

Mandibles' bitidvandtstronglyedeenssates. +e. + ene eo oe eee 6

2—Body abbreviated, oblong-oval, strongly convex, with fine and sparse vestiture
throughout; beak rather long and slender; prosternum flat, with two short
erect processes in the male, the coxe moderately separated; prothorax very
briefly and feebly subtubulate; elytra coarsely grooved. [Type L. subequalis
MOVES... 3 5. sells ele usnctis Sane ko ekek ooh ERR REM tas ay ots Coe cea Ee ar Lorena

Body oval, rather closely, uniformly squamose, the habitus very much as in
Group VI of Centrinaspis; prosternum flat, similarly not spinose in the
male, the coxz moderately separated; prothorax not tubulate at apex, the
elytra grooved. [Type P. subovalis nov.]................. Pycnonicentrus

Body elongate-subparallel; prosternum not sulcate and never spinose in the
male, the claws free and divergent; antenne notably beyond the middle of

the beat ba 40 are Rb 8 EE Ny cee ee 2
3—Prothorax never more than very slightly narrower than the elytra......... 4
Prothorax very much narrower than the elytra and relatively small in size.. ...5

4—Mandibles broad and rapidly narrowed, relatively short; body more convex
and sparsely uniformly, squamulose, the prothorax large in size. [Type
EES Menus NOV A. eo VAS Oa eet 8 2 ico ae oe ee Eunicentrus
Mandibles narrower and feebler, more elongate; body less convex, with relatively
smaller prothorax, the vestiture frequently not uniform; species very nu-

merous. [Type Centrinus decipiens Lec.].....................Nicentrus
5—Body minute in size, the vestiture uniform. [Type M. angusticollis nov.]
Nicentridia

6—Tarsal claws free; femora unarmed as in the preceding genera............ 7
Tarsal claws connate or extremely approximate...............00000eeeeue: 25

7—Prothorax with remarkable sculpture, opaque, the opacity due to extremely
minute, deep and very close, though perfectly defined, punctules; body
oblong-oval, very convex, with remote erect setiform squamules, the pro-
thorax not tubulate and the elytra moderately grooved; beak thick, strongly
sculptured, the antenne moderate; prosternum flat, the coxe moderately

separated; claws slender. [Type C. semiopacus nov.]......... Camerones
Prothorax with the usual smooth ground surface between the punctures.......8
8—Body briefly suboval and relatively rather stout asarule................. 9
Body narrower, elongate and subfusoid-oval; prosternum not armed in the
WAG ito u's osha «io Ses 4 eee eae ee te ee IR ene nee ee 12
Body cylindric and parallel, very narrow to unusually broad in outline.......15

9—Beak very short, thick, strongly arcuate above, nearly straight beneath,
separated from the head by a transverse sulcus; scrobes very oblique; body
rather depressed, the prothorax subquadrate and narrower than the deeply
grooved elytra, tubulate at apex; prosternum flat, not armed in the male,

the coxe widely separated; legs rather short. [Type F. brevinasus nov.]
Fishonia

Beak moderately long and of the usual form; elytra deeply grooved.........10
10—Antennal club gradually formed, by reason of the gradual broadening of the
outer funicular joints; beak separated from the head by a moderate but
distinct:transverseysuléuss. i220. ee he eee II

BRAZILIAN BARIN 271

Antennal club abrupt, the outer funicular joints never more than slightly dilated,
the antenne inserted behind the middle of the beak; prosternum flat, the
coxe moderately separated; body with sparse setiform squamules in single
interstitial lines on the elytra; prothorax very briefly and feebly tubulate
at apex: a: (Miypepsmspars@ Nove lent s.. so/n ce ciecesic ie Dieeicieaee Sodesia

Antennal club similarly abrupt, the funicle shorter, the antennz slightly ultra-
medial, the beak shorter and thicker, much shorter than the prothorax;
prosternum flat, the coxze separated by about their own width; body more
parallel, the prothorax nearly similar, the elytral grooves very much finer;
surface with very small and sparse, hair-like squamules above. [Type
AN HODLEOSCHST SEM OMAR OA Sa cos ead ol shes oh eee a, Spa! Anotesiops

11—Body subdepressed, almost as in Fishonia, feebly sculptured; antenne rather
thick; surface herissate with very remote setiform squamules; prothorax
tubulate at apex; prosternum flat, the coxe rather well separated. [Type
A RSCHULLGS CMON CERAM NS NS ei eaio eee ek oo ES Parafishonia

Body convex above and beneath, coarsely and closely sculptured, more abbre-
viated and oval than in the preceding; squamules rather short and stout,
not dense; prothorax very briefly and feebly tubulate at apex; prosternum
flat, with slender, sometimes vestigial spinés in the male, the coxe well

SeParat ea my pei. COMPACIO NOV...) Jc ae ce be edu ors Sine: WNestrada
12—Beak not separated from the head by an impression of any kind......... 13
Beak separated by a more or less pronounced transverse impression, much feebler

in Kanceoma-mody glabrous:or nearly sod: 2.05 <2): bel cts a2 eee 14

13—Body small, densely clothed throughout with large decumbent scales; beak
short, thick, densely sculptured and squamose; antenne far beyond the
middle, small and slender, the club small, oval, and abrupt, its basal segment
more than half the mass; prosternum not sulcate, the coxz rather well
separated; prothorax not tubulate at apex, the elytra somewhat finely
SinidtemMuype as SONMMOSA: DOV.) Hut 2 wie vie leed SU eles Ethelda
Body in great part glabrous; beak differing sexually, rather thick (<7), longer,
very slender and enlarged at base (9); antenna slender, submedial, with
small and somewhat gradual club, its first segment somewhat more than
half the mass; prosternum rather broadly sulcate, the coxe narrowly sepa-
rated; prothorax feebly subtubulate at apex; elytra with coarse, abrupt and
punctatelgrooves) [ype 2. parviclava nov). . 15.2 ae ee Rancea
14—Beak thick, strongly compressed and coarsely sculptured, separated by a
rather deep sulcus above the middle of the eyes; antennz slender, the club
small, narrowly oval, its basal segment about half the mass; prosternum
somewhat canalate, the coxe moderately separated; prothorax with a some-
what long but gradually formed tubulation, the elytra with fine shallow
punctured grooves; tarsal claws very small, approximate but not connate,

the claw-joint slender and smaller than usual. [Type P. spissirostris nov.]
Pseudorancea

Beak thick but smooth, somewhat wider than deep, the transverse impression
above the middle of the rather less finely faceted eyes not very deep or
sulciform; antenne somewhat slender, the club oval, subequally segmented

by the sutures; prosternum somewhat impressed, the coxe moderately
separated; prothorax with the apical tubulation scarcely at all defined;
elytra with fine grooves; scutellum elongate, slightly dilated at apex; tarsi
narrow, the third joint feebly dilated, the fourth and the diverging claws
well developed. [Type J. truncatula nov.].............000000 Iopsidaspis
Beak moderate in length and thickness, finely punctate, the separating impression
very feeble; antennze submedial, the seventh funicular joint transverse and
sculptured in a manner similar to that of the large, oval and subequally
segmented club, which is as long as the five preceding joints; prosternum

272 MEMOIRS ON THE COLEOPTERA

feebly impressed, more deeply toward apex, the coxe moderately separated;
third tarsal joint feebly dilated, the fourth and the diverging claws well
developed; prothorax not tubulate at apex, the scutellum short, narrowed

atibase. [Ly peuksuntformisinGv alters se ne ee ee Ranceoma
15—Body oblong, parallel and more or less stout; genera allied to Dirabius.. .16
Body slender, sometimes stouter in some species of Sibariops................ 19

16—Beak very short and thick, only slightly arcuate, truncate and with small
mandibles, separated from the head by a transverse sulcus; antennz short,
the funicle compact, gradually broadening outwardly, the club short, grad-
ually formed, with rather large basal segment; prosternum flat, with small
apical fossa, unarmed in the male, the coxe rather well separated; legs
short, the straight tibiz strongly fluted; tarsi broad, the claw-joint rather
narrow, with moderately diverging claws; integuments subglabrous; pro-
thorax feebly and gradually tubulate at apex; elytra not grooved, but with
strongly punctate strie. [Type E. curtirostris nov.]........... Eusomenes
Beak very short but less thick, feebly arcuate, separated from the head by merely
a feeble obtuse impression; antenne, prosternum and coxe nearly similar;
body much smaller; elytra with moderate impunctate grooves; tibiz simply
punctulate, not at all fluted, the tarsi narrower. [Type P. brevirostris nov.]

Parasomenes
Beak longer, thinner and cylindric; prosternum armed in the male, so far ‘as
lemons bite PERS... os 251 CO ee ee GUTS eee Sipe sree eee ae 17

17—Beak shorter than the prothorax, smooth, cylindric, rather strongly arcuate,
separated from the head by a deep sulcus; antennal scrobes strongly oblique
as in the two preceding, the club oval, gradually formed, with its first segment
less than half the mass; prosternum flat, the coxe moderately separated;
tibiz fluted; tarsal claws rather short and thick though widely diverging;
only the female known at present. [Type L. equalis nov.]....Liosomenes
Beak less abbreviated, cylindric and but feebly arcuate..................... 18
18—Beak separated from the head by a distinct transverse sulcus, which: is
bordered anteriorly by a strong tumidity; antennal scrobes only feebly
oblique, the club abrupt, oval, its basal segment about half the mass; pro-
sternum flat, the two spines in the male separated by a moderate circular
cavity, the coxe somewhat narrowly separated; integuments with more or
less sparse, simple vestiture, the elytra strongly grooved. [Type S. subin-
flatsis wows. od lets ee eee BR A ae te ete: Somenes
Beak a little thicker, not swollen dorsally at base and not separated from the head
by any kind of depression; antennal scrobes moderately oblique, the club
abrupt, oval, with its basal segment fully half the mass; anterior cox
moderately separated, the prosternal spines of the male very short, thick
and curved, separated by a small perforation; tarsi rather broad; body
broadly oblong, the pronotum with circumambient dense vestiture, the elytra
moderately grooved, the alternate intervals more or less densely clothed
with scales: [TypelD.vitiatanoy |). 4 ees, A ee ee ae Demoda
19—Body glabrous, feebly sculptured and never black. Beak rather slender,
cylindric, feebly arcuate, not separated from the head by trace of impression;
antennae moderate, the funicle gradually broader and compact distally, the
club thus gradually formed, oval and subequally segmented; prosternum
broadly, feebly canalate, not armed in the male, the coxe well separated;
prothorax not tubulate, the scutellum small, free, and the elytra deeply

grooved; tarsal claws small. [Type V. piceolus nov.]......... . Valdenus
Body with simple uniform sparse vestiture............... 0000 0e cece eceeeee 20
Body: swith ‘variegatedivestiture: 21:2). 9.9.08) 1 a eee 24

20—Prothorax abruptly and strongly tubulate at apex. Body slender and
cylindric; beak short, rather thick, strongly sculptured, separated by a

BRAZILIAN BARIN 273

moderate sulcus; antenne moderate, the seventh funicular joint much
wider, forming part of the club, the combination large, oval and not quite
as long as the rest of the funicle; prosternum nearly flat, not armed in the
male, the coxz small, somewhat widely separated. [Type M. tubulatus nov.]
Microtorcus
Prothorax not tubulate at apex, except very briefly in Anatorcus.. L J2%
21—Prosternum canalate. Body slender, parallel and strongly sculptured: ‘heak
moderate, not separated by an impression; antenne submedial, with very
small and narrowly oval club, the coxe well separated; elytra with feeble
humeral prominences and strong grooves. [Type 7. sculptilis nov.]
Torcobius
Brostermumiiiiat, aera eater ae temas che Sitar et SUNS se nat ae
22—Beak short, thick, obtuse at tip and closely sculptured, the antennz far
beyond the middle; body slender, parallel and closely sculptured; antenne
moderate, the club small, oval, abruptly separated from the almost equally
wide, compact distal part of the funicle, its basal segment more than half
the mass; all the funicular joints beyond the first are closely compacted
and more or less transverse; coxe well separated and also well developed;
elytral humeri subobsolete. [Type A. densus nov.]............ Anatorcus
Beak rather short and thick, strongly sculptured, separated by a moderate
impression; antenne beyond the middle, with somewhat abrupt and moder-
ate, ovoidal club; anterior coxe well separated; elytral humeri feebly

though evidently prominent. [Type S. ruginasus nov.]....... Sibariopsida
Beak only moderately long but always slender, more or less smooth and cylindrical,
the antennal club well developed, oval and abrupt. . ie SHE RH ba. 23

23—Elytral humeri and general habitus nearly as in the preceding, the sides
usually not exactly parallel; beak smooth, sparsely punctulate, sometimes
tumid at base at the feeble sulcus; antenne medial or but little beyond;
prosternum sometimes bispinose in the male. [Type Centrinus confinis
Co I aston sca Sosy aioe ise ce Bc isaer aeaees hee as whe Sibariops
Elytral humeri obsolete, the body rigidly parallel, loosely sculptured; beak
slender, smooth and arcuate, separated by a very feeble sulcus; antenne
slender, medial, the first funicular joint as long as the next two, the second
nearly twice as long as wide, the club abrupt, longer than the preceding
four joints, its basal segment half the length; anterior coxe narrowly sepa-
imetieexal.. | | I\orey JP eH SOON alle era ae ce ia ee cle See ae Pseudotorcus
24—Body parallel, the dense pale elytral squamosity fasciiform in arrangement;
prothorax not tubulate at apex; beak rather short and thick, more or less
densely sculptured, the antenne beyond the middle and with moderate
oval club; prosternum flat, the coxe moderately separated; elytra with
very feeble humeri and rather deep grooves. [Type 7. fasciatus nov.]
Torcus
Body similarly exactly parallel but more depressed, feebly sculptured, the pro-
thorax with a very short but abrupt apical tubulation; beak rather long,
very slender, smooth and cylindric, arcuate, the antenne behind the middle,
somewhat slender, with well developed and abrupt oval club; prosternum
flat, the coxe well separated; pale elytral vestiture partially fasciiform.

[Arete eam fol a acs coke sn Shas Se aualy tec tule is epi aiere Siena « Paratorcus
25—Femora unarmed; tarsal claws small and very slender, either connate at

basclomextneme ly approxima cesiu. sche ce skeds, saateksetects ans (aus 4 «vse apb-ocess eA 26
Femora serrato-denticulate medially \beneathy,i)0 0.00.05... 0s anne ene ewes ss 29
26—Anterior coxe moderately separated; tibie straight.................... 2
Anterior coxe larger, approximate; femora apically and the tibie bent....... 28

27—Body very narrow and elongate-suboval, smooth and glabrous; beak thick,
truncate, not separated from the head by an impression; antennz slender,

T. L. Casey, Mem. Col. X, Aug. 1922.

274 MEMOIRS ON THE COLEOPTERA

slightly behind the middle, the club small, subglabrous and slender, gradually
formed, its basal segment half the mass; prosternum excavated, the sides of
the depression ridge-like, becoming angulate posteriorly—at least in the
male; prothorax elongate, not tubulate at apex. [Type J. sparsa nov.]
Tops
Body narrow but ventricose, coarsely and densely sculptured; beak short, thick,
strongly sculptured, not separated by an impression; antenne short, medial,
the club well developed, oval; prosternum nearly flat; prothorax shorter,
not tubulate; elytra coarsely and closely sulcate; vestiture sparse. [Type
A... scubpturatamov..|)5 secs Bisse 555 es Ek ee ee Aniops
28—Body very slender and elongate, with relatively small, constricted and
subtubulate prothorax, which is rather finely sculptured and subglabrous;
beak very slender, cylindric, truncate at tip, the mandibles very small,
almost hidden when closed; antennz slender, submedial, the first funicular
joint thick, 2-7 very narrow, the second slender, rather longer than the first;
club small, oval and subglabrous, with long basal segment; prosternum short
and broadly concave before the coxe; elytra very elongate, deeply striate.
[My penddéeparuscollis: moval entee nets om, ccss SET eas ORI aee ees Macriops
29—Body narrow, more or less opaque, closely sculptured and with minute
sparse setiform squamules, the elytra striato-punctate, with finely carinulate
intervals; beak rather short, thick and closely sculptured, not separated by
an impression, the antenne somewhat short, submedial, the first funicular
joint very much broader and longer than the next two combined, 2-7 grad-
ually broader, more or less compactly joined, the club moderate, narrowly
oval, its basal segment half the mass; prosternum not much modified, the
coxe narrowly or moderately separated; tarsal claws minute, very slender,
approximate but not connate. [Type P. carinulosa nov.|.......... Psiona

The last four genera are founded upon very small, narrow species
of peculiar facies, few in number and apparently rare individually;
as in the case of several others of this tribe, they are probably of
decidedly secluded habits.

Chepagra n. gen.

Although associable with the Nicentrid series, this genus has a
peculiar facies due to its parallel convex form, strongly convex
surface and rather inflated, laterally rounded prothorax. The beak
is moderate in length and thickness, slightly compressed and
strongly sculptured basally, feebly arcuate, somewhat more so
basally, and is not separated from the head by any trace of im-
pression, the antenne just visibly beyond the middle. The anterior
coxe are large and narrowly separated, and the unchanneled
prosternum has a very small feeble apical fossa, laterally inclosed
by slight ridges. The tarsi are not very wide and the claws are
strongly arcuate and diverging. The type may be described as
follows:

Chepagra rotundicollis n. sp.—Parallel, convex, dark rufous, the prothorax
blackish; pronotum at the sides and apex with long close whitish scales, the
elytra with similar scales, moderately close and confused, but smaller and forming
single interstitial lines toward the sides; under surface throughout with close

BRAZILIAN BARIN4E 275

white scales, of similar nature throughout; beak (2) as long as the head and
prothorax, finely, sparsely punctured, except at the sides basally, the antenne
in great part missing in the type; prothorax a fifth wider than long, the parallel
sides strongly, subevenly arcuate, widest near the middle, the truncate non-
tubulate apex more than half as wide as the base; surface alutaceous, micro-
reticulate, the punctures strong and moderately separated, with a smooth median
line; basal lobe short, feebly sinuato-truncate, slightly reflexed; scutellum small,
free, squamose; elytra about one-half longer than wide, barely as wide as the
prothorax and twice as long, the sides but slightly converging and broadly arcuate,
obtusely rounded at tip; grooves moderate; intervals flat, with strong, loosely
confused punctures, the surface shining; first ventral suture distinct. Length
3.5 mm.; width 1.3 mm. Brazil (Rio Grande do Sul). One specimen received
from an unrecorded source.

The mandibles, which are a distinctive feature of this aberrant
species, are sufficiently described in the table of genera.

Lorena n. gen.

This genus also belongs near the Nicentrid series, because of its
prominent mandibles, but is very different in form and facies. The
body is stout, suboval, strongly convex, shining, though strongly
sculptured throughout and very sparsely squamulose. Beak rather
long and moderately arcuate, separated by a feeble subsulciform
impression, somewhat thick and sharply, longitudinally sculptured
(o), or evidently more slender and less sculptured (9); the
mandibles scarcely in close contact when closed, except at apex,
and having a submedian internal tooth. Antenne beyond the
middle (o), more nearly medial (@), the first funicular joint
almost as long as the next three, the outer joints slightly dilated
and compact, the oval club not abrupt, its basal segment fully
half the mass. The prosternum, unlike any of the true Nicentrids,
has two short erect spines in the male, not separated by a cavity,
but, anteriorly, there is a rather deep subtransverse fossa; the
coxee are moderately separated. The prothorax is not distinctly
tubulate at apex, and the legs are rather short. There are appar-
ently three species at hand as follows:

Elytra more rapidly and obliquely narrowed in about apical half. Body stout,
shining, rufo-piceous, the squamules yellowish, very narrow and sparse on
the pronotum, a little wider and longer on the elytra, forming single in-
terstitial series, somewhat shorter and wider but sparse throughout be-
neath; beak (@) slender, smooth, cylindric,’ finely, closely punctate and
squamulose near the base, arcuate, becoming straighter basally, not quite as
long as the elytra; antenne medial, dark rufous; prothorax only a fifth or
sixth wider than long, the sides feebly converging and but very slightly
arcuate, rounding and oblique in about apical third; basal lobe very
small and rounded; punctures coarse and well separated, but coarser
and confluent in longitudinal rugz at the sides; smooth median line distinct ;
scutellum small, subglabrous, quadrate and very free; elytra a fourth longer
than wide, evidently wider than the prothorax and two-thirds longer, the

276 MEMOIRS ON THE COLEOPTERA

sides almost parallel in about basal half; apex narrowly rounded; grooves
coarse, abrupt and very deep, not distinctly punctured; intervals but little
wider than the grooves, each with a single series of rather close, strong
punctures; abdomen strongly convex, with distinct first suture. Length
3.0 mm.; width 1.28 mm. Brazil (Santarem). One example.
obliquata n. sp.
Elytra subevenly oval, gradually narrowed behind to the rather more obtuse and
FOUMCEd ApERin ss ewAY CUES Asya eh ASR ees en a 2
2—Body very stout and convex, shining, blackish-piceous, the legs not paler;
sculpture and vestiture nearly as in the preceding, but the lateral pronotal
punctures are relatively coarser and not much united longitudinally, and
the rather dark fine pronotal squamules are very sparse and even less distinct,
these longer and whiter on the elytra, somewhat longer and more separated
than in obliquata, with the series becoming more confused suturally; beak
(o) rather thick, evenly arcuate, strongly longitudinally sculptured and
four-fifths as long as the elytra, the rufous antenne well beyond the middle;
prothorax larger and more inflated, a fourth wider than long, the more
arcuate and less converging, but apically obliquely rounded sides incurvate
at base, in a way not traceable in the female of obliquata; punctures more
notably less coarse and sparser toward the median line; scutellum sparsely
squamulose; elytra slightly longer, barely visibly wider than the prothorax
and three-fifths longer; sculpture nearly similar; male abdomen with a
small and very feeble impression medially toward base, the straight prosternal
spines nearly a third as long as the prothorax in the types. Length 3.15-3.2
mm.; width 1.4-1.45 mm. Brazil (Santarem). Two males.
subequalis n. sp.
Body less stout than in either of the preceding, the sculpture and vestiture
almost as in subequalis, the pronotal punctures sparser than in obliquata and
much less confluent at the sides; beak (co) shorter and less thick than in
subequalis and three-fourths as long as the elytra, not quite so strongly,
though conspicuously and closely sculptured, distinctly more elongate,
slender and nearly smooth except at base (9), the antennz almost similar;
prothorax a fourth wider than long, somewhat more rounded at the sides in
the male; elytra throughout very nearly as in subequalis; male abdomen
with even feebler basal impression, the prosternal spines in the only known
male very short, three-fourths as long as the femoral thickness. Length
2.65-2.75 mm.; width 1.2-1.25 mm. Brazil (Santarem). Three specimens.
simulans n. sp.

Although these species are undeniably closely allied, I think that
they are distinct as defined above. It sometimes happens that en-
tire genera, as well as species, are rather local in the Brazilian fauna.
The same is notable in regard to the nearctic genus Haplostethops.

Pycnonicentrus n. gen.

In this genus the body is decidedly oval, and rather densely and
uniformly clothed with narrow pale scales. The beak is thicker
and more strongly sculptured, and with the antenne beyond the
middle in the male, medial in the female; it is separated from the
head by a somewhat deep reéntrant angle. The mandibles are
prominent and non-decussate, the straight inner edge with two
deep nicks and intermediate toothlet in the most accentuated

BRAZILIAN BARIN 277

development, to straight, with a very small subbasal nick in each.
The antenne are moderate, with abrupt oval club, having a moder-
ate basal segment, the first funicular joint as long as the next three.
The prosternum is nearly flat, somewhat fossate anteriorly, moder-
ately separating the coxe and wholly unarmed in the male. The
’ basal thoracic lobe is small and rounded, and the scutellum small,
quadrate, squamulose and free; the prothorax is scarcely tubulate
at apex. The species at hand are as follows:

Body more elongate-oval and generally larger in size, the mandibles each with
EW.ONSUROM MING Kaan a relien ica esc, area ae ad pete ices ahs Steal esr ta as She) dpoustciay aca 2
Body smaller, more abbreviated as a rule and still more oval, the mandibles each
with a small feeble nick near the base, the right with two small nicks in

DERSUTTT TS ENR ops cats: ct den Macey eels eed thaws cecil cciatshuslsu auakeye) Mairel dC gras dsr é 5
2—Body more attentuated behind, the elytral squamules rather broadly confused
onvalimostaalljaitepimtenval shrews sis Aros jt) ore «past erat aye wails tocar) aie Exobak a ears c 3
Body more oblong-oval, somewhat less attenuate behind, the elytral squamules
narrowly confused or forming single interstitial lines.................... 4

3—Form almost evenly oval, the humeri but slightly prominent, black, the legs
not paler; vestiture above in the form of short and narrow but very distinct
pale fulvous scales, evenly distributed, the scutellum with dense and whiter
scales, the under surface with close but not very dense whitish scales; beak
almost similar in the sexes, nearly three-fourths as long as the elytra, shining
and finely, sparsely punctate, more compressed basally in the male, nude
except at the extreme base, where there are a few squamules; antenne very
obscure rufous, submedial (9), far beyond (co); prothorax a third wider
than long, the sides subevenly and strongly arcuate, becoming parallel
basally; punctures strong and close but not crowded, without smooth median
line; elytra a third longer than wide, a little wider than the prothorax and
fully twice as long, the oblique sides broadly, evenly and feebly arcuate,
the apex narrowly but obtusely rounded; grooves somewhat coarse and
deep, intervals with rather strong and loose, confused punctures, alternating
slightly in width; male abdomen basally scarcely more than flattened
medially and not at all differently clothed, the fifth segment, however, with
a large, subimpressed and nearly glabrous median area. Length 3.0-3.2
mm.; width 1.3-1.35 mm. Brazil (Santarem). Four specimens.
naso n. sp.
Form rather more oblong-oval, with still feebler humeri; vestiture nearly white
throughout, consisting of narrow and well separated scales on the pronotum,
on the elytra very dense on some of the intervals, especially the sutural,
still denser on the scutellum; rather large and dense beneath; color black,
the legs not paler; beak (co) unusually short and thick, compressed, feebly
arcuate, closely sculptured and barely longer than:the prothorax, which is
a third wider than long, the sides but feebly convergent and slightly arcuate,
rounding apically and oblique to the truncate apex, which is half as wide as
the base; punctures strong and close; elytra not quite a third longer than
wide, just visibly wider than the prothorax and four-fifths longer, the sides
only feebly oblique and broadly arcuate, merging gradually into the some-
what obtusely rounded apex; grooves coarse, the intervals varying much
in width, the narrower with only a single line of scales, especially toward
apex; abdomen in the male wholly devoid of sexual modification, the scales
extremely dense throughout the two basal segments, the antennae beyond
the middle of the beak seeming at least to indicate the male; fifth segment

278 MEMOIRS ON THE COLEOPTERA

also densely squamose throughout; anterior coxe separated by scarcely a
third of their width. Length 2.8 mm.; width1.25mm. Brazil (Rio Grande
doxsull):* (One Speciumen.ers ics 2 ate ne etc ates cee eed ee opertus n. sp.
Form, color, sculpture and vestiture nearly as in naso, the slender and uniform,
still more widely separated scales whiter in color; beak (2) shorter and
thicker than in the same sex of that species, only a little longer than the head
and prothorax, more compressed basally, with long sulci at the sides, and of
very different shape, being not evenly arcuate as in zaso, but bent at about
the middle, thence straighter to the base, where the dorsal dividing reéntrant
angle is much deeper; antennz rufous, submedial; prothorax differing in
having the basally subparallel sides rounding and converging more gradually
from a point more medial than in maso; elytra nearly similar in outline and
more than twice as long as the prothorax, the intervals alternating more
obviously in width, the narrow confused scales rather larger but somewhat
less abundant; under surface with the scales larger and denser than in
naso. Length 2.8 mm.; width 1.28 mm. Brazil (Santarem). One female
CXAMIPlS ee eee Ce ee Re oe en eee ovoideus n. sp.
4—Body differing from the preceding in having the slender pronotal squamules
less sparse, though not dense in about lateral fourth; color black, the legs
obscure rufous; vestiture nearly white, dense on the scutellum and forming
single series on most of the strial intervals; beak (o’) rather thick, feebly
arcuate, closely, finely sculptured and squamulose, smoother apically, only
about as long as the prothorax, with the nearly black antenne well beyond
the middle, or (@) differing but slightly, being just visibly longer and a
little less thick, almost similarly sculptured, the antennz slightly beyond
the middle but not so far as in the male, in both sexes separated from the
head by scarcely a trace of impression, differing thus very much from the
preceding; prothorax a fourth (<’) or slightly more (@) wider than long,
the sides subparallel and feebly arcuate for a greater distance than in the
preceding species, becoming rounded and oblique beyond the middle;
punctures strong but well separated and with a distinct smooth median
line; elytra oval, rather obtuse at apex, barely over a fourth longer than
wide and somewhat less than twice as long as the prothorax; grooves deep;
intervals with rather strong and confused, close-set punctures, uniserial on
the narrower; abdomen and met-episterna very densely squamose, the
former (o") having a scarcely visible impression medio-basally, this clothed
with very slightly less dense squamules, the fifth segment scarcely modified.
Length 2.7-2.85 mm.; width 1.15-1.25 mm. Brazil (Santarem). Three
SPECIMIGHS SS, teks is op Rte cate Ee Hn Be Tt diversus n. sp.
Body smaller and narrower than in the preceding, with relatively smaller pro-
thorax, the coloration, lustre and vestiture almost similar, the large white
scales beneath similarly dense, but still denser on the pro- and metasterna;
beak (<”) nearly similar, but with the antenne less ultra-median, somewhat
longer than the prothorax, which is smaller, with the sides feebly converging
and less strongly rounded beyond the middle than in diversus, the apex
similar; punctures equally coarse but more clearly isolated among them-
selves; scutellum similar; elytra nearly similar in outline but narrower,
with the arcuate sides somewhat less oblique and the apex relatively slightly
more obtuse,.evidently as wide as the prothorax and twice as long; sculpture
and vestiture subsimilar; male abdomen densely squamose, with a large
shallow basal impression, rather more distinct than in diversus and more
gvidently less squamose than the rest of the surface. Length 2.3-2.45 mm.;
width 1.15 mm. Brazil (Santarem). Four specimens........ minor n. sp.
Body slightly larger, stouter and more oblong than in diversus, similar in colora-
tion and vestiture, but with the interstitial squamules in even single lines;

BRAZILIAN BARINZ 279

beak (9) rather strongly arcuate and moderately slender, longer than the
prothorax and with the antenne barely beyond the middle, the beak longer
and the antenne less ultra-median than in the female of diversus; prothorax
of different outline, fully a third wider than long, the sides parallel and
feebly arcuate, rapidly rounding and converging in only apical third; punc-
tures similar but much less close, separated by their own widths or more;
elytra subsimilar, but rather more obtusely rounded behind and more than
twice as long as the prothorax, the abrupt grooves a little coarser, the rather
coarse interstitial punctures more evenly uniserial. Length 2.9 mm.; width
1.3mm. Brazill(Santarem): ‘One’specimen!. ....4...-.... recticollis n. sp.
5—Body somewhat broadly ‘oval, piceous-black, with slightly reddish legs,
clothed throughout above with narrow and moderately dense yellowish
scales, confused on all the strial intervals, not much paler but shorter and
denser beneath, the surface closely punctate, without smooth pronotal line;
beak (oc) moderately slender, feebly compressed and distinctly sculptured
at the sides, evenly arcuate and as long as the head and prothorax, or ( ? )
but very little less thick and very little longer, less compressed at the sides;
antenne medial (@), near three-fifths (o’); prothorax a third to two-fifths
wider than long, the sides subparallel in basal, converging in apical, half; apex
less than half as wide as the base; scales even, not very dense and oblique
in direction; dense scales of the scutellum not much paler; elytra oval, a
fourth to third longer than wide, slightly wider than the prothorax and
nearly two and one-half times as long; striz rather coarse, deep and nude;
first interval with uniseriate scales; male abdomen with dense scales, just
visibly impressed but scarcely less squamose medio-basally; anterior cox
separated by less than a third their width. Length 2.5-2.85 mm.; width
1.2-1.45 mm. Brazil (Chapada—forest). August and September. Eight
SPECIMENS RE HMA MS Ch) ee hnas hon oaks See cee tits Set gilvivestis n. sp.
Body smaller, much more narrowly oval, piceo-rufous, with rufous tibiz; punc-
tures moderate and close-set, the pronotum without smooth line; upper
surface very uniformly clothed with narrow and well separated scales,
yellowish-white in color and sublongitudinal on the pronotum, the latter
without smooth line; the scales beneath are whiter and broader, close-set
but fine and shorter, though equally close, on the abdomen; beak (2)
rather smooth, shining, more punctured and squamose only at the extreme
base, evenly arcuate, somewhat slender and a little longer than the head
and prothorax; antenne rufous, medial; mandibles each with a small nick
internally near base, the margin straight; prothorax barely a third wider
than long, the sides subevenly arcuate, gradually becoming nearly parallel
basally, the truncate apex half as wide as the base, the lobe and scutellum
more densely squamose as usual; elytra evenly elongate-elliptic, three-
sevenths longer than wide, only a little wider than the prothorax and between
two and three times as long; striae coarse; interstitial punctures rather
loosely confused. Length 2.35 mm.; width 1.0 mm. Brazil (Santarem).
Omevexcannp CMa ee A REN A Sel ee tA heats rufescens n. sp.
Body more broadly oval, almost as in gélvivestis in color, sculpture and pale
fulvous-yellow vestiture, but smaller, narrower and with the prothorax
slightly less abbreviated, a fourth to third wider than long and with its
sides more gradually rounding and converging anteriorly, not parallel but
slightly oblique in about basal half; beak differing very much, very thick,
strongly compressed, feebly, evenly arcuate, distinctly sculptured and rather
longer than the head and prothorax (<”), or moderately slender, shining,
scarcely compressed and less sculptured, evenly arcuate, a third longer than
the head and prothorax and slightly thinner distally (2); antennae medial
(9), at fully three-fifths (7), nearly as in gilvivestis, but with the sublongi-

280 MEMOIRS ON THE COLEOPTERA

tudinal squamules less close-set; elytra a fourth to nearly third longer than
wide, rapidly elliptic posteriorly, distinctly wider than the prothorax but
only a little more than twice as long; striz coarse, deep; intervals alternating
more in width, the confused squamules rather less conspicuous, the first
interval uniseriate as usual; male abdomen feebly modified, just visibly
impressed medio-basally but barely visibly less densely squamose; anterior
coxe separated by a fourth their width. Length 2.3-2.75 mm.; width
1.01.28 mm; Brazil\(Santarem):.) Six’specimeans:s au eee rostralis n. sp.

This distinctly characterized genus would have taken its place
near Centrinaspis, in the preceding tribe, were it not for the inter-
nally modified straight mandibles; it is a clearly annectant form
between the two tribes.

Eunicentrus n. gen.

.The few species of this genus are evidently allied to Nicentrus,
but have an even more nearly parallel and much more convex
form of body, and also sparser vestiture. The mandibles are
relatively shorter and broader, and are barely visibly irregular
within, being virtually straight, and they further differ from those
of Nicentrus in having their upper surface feebly, longitudinally
ridged submedially almost throughout, but more distinctly toward
base. The beak is moderately thick and sculptured, rather short,
the antenne evidently beyond the middle in both sexes, the first
funicular joint almost as long as the next three, the seventh some-
what abruptly dilated and nearly as wide as the club, which is
ovulate, with its basal segment about half the mass. The flat and
densely squamose prosternum has a small and feeble, transverse
apical fossa, and it separates the coxe by about a fourth of their
width. The prothorax is not at all tubulate at apex, the basal
lobe moderate, gradually formed and rounded, densely squamose
only toward its apex, the scutellum abruptly, very densely albido-
squamose and the elytra deeply grooved. The two species at hand
are as follows:

Form elongate-suboval, strongly convex, black throughout, shining and with
whitish vestiture, the squamules very slender and sparse throughout the
pronotum, and shorter, broader and in single lines on the elytra, the scutellum
and most of the under surface very densely squamose; beak evenly and
moderately arcuate, somewhat slender, coarsely longitudinally sculptured at
the sides and as long as the prothorax (<7), or not quite so sculptured, a
little less thick, somewhat more tapering and smoother distally and nearly
as long as the head and prothorax (2); antenne dark rufous, at four-
sevenths ( 2 ) or three-fifths (<); prothorax nearly as long as wide (<”), very
little wider (9), the sides nearly parallel, gradually more converging and
arcuate anteriorly, the truncate apex half as wide as the base (c”), more (@),
the punctures coarse and well separated, longitudinally confluent toward
the sides, the smooth median line evident centrally; elytra obtusely oval, a
third longer than wide, very little wider than the prothorax and distinctly
less than twice as long; grooves abrupt and deep, half as wide as the intervals,

BRAZILIAN BARINZE 281

the punctures of which are strong, close-set and in single series; male with
the extremely densely squamose abdomen very feebly impressed and with
slightly separated scales medio-basally. Length 3.7-4.1 mm.; width 1.65-
1.75 mm. Brazil (Chapada). May and November. Three specimens.
nimius n. sp.
Form less broad and still more elongate, rather less convex; coloration, lustre
and vestiture nearly similar, except that the squamules above are pale, the
large and very dense scales beneath deeper, yellow, and not almost white;
scutellum a little larger and more quadrate; beak (<) much longer, feebly
arcuate, rather less coarsely sculptured, with more numerous slender squam-
ules and fully as long as the head and prothorax; antenne piceous, at three-
fifths, the scrobes similarly very deep and only moderately oblique; obtuse
reéntrant angle at the base of the beak evident, in mimius almost obsolete;
prothorax fully as long as wide, the sides parallel and nearly straight for a
much longer distance from the base, gradually rounding and oblique in
apical two-fifths; punctures sparser and not so coarse; elytra elongate,
suboval, relatively somewhat more obtuse at tip, nearly one-half longer than
wide, three-fourths longer than the prothorax, the sculpture and vestiture
nearly similar in form; sexual characters beneath almost similar. Length
3.6 mm.; width 1.45 mm. Brazil (Chapada). November. One example.
elongatus n. sp.

One of the males of nimius has the elytra relatively somewhat
shorter and more broadly rounded at apex than the other, but
there seems to be no other difference.

Nicentrus Csy.

This is a large genus, abundant almost throughout North and
South America, except in the Pacific coastal regions. The body
is elongate and more or less narrowly suboval, the humeri feebly to
distinctly subprominent. The beak is not very slender, strongly
sculptured, differing but little in the sexes, with the antennae often
beyond the middle in both, never separated from the head by a
very distinct reéntrant angle and with the mandibles somewhat
narrow and prominent, with the straight inner margins obtusely
dentate medially and biemarginate. The end of the beak above
the mandibles is obtusely lobed, the lobe defined by sinuations or
even deeper fissures. Antenne moderate, the first funicular joint
as long as the next two or longer, the club oval, with distinct
sutures, the basal segment apparently always distinctly less than
half the mass. The prosternum is not impressed, except by a
small feeble transverse apical fossa; it is densely squamose and
very moderately separates the coxe. The prothorax is not tubulate
at apex, the basal lobe short and gradual, the scutellum usually
more or less densely squamose and the elytra moderately grooved,
the grooves not very distinctly punctate, except in striatopunctatus.
The species at hand may be known as follows.

Pronotum with three distinctly defined pale squamose vitte, the strial intervals
with uniseriate, or sometimes in small part narrowly confused, squamules,
thesseries inumeatyacasesrabpreviated.. .fle css. css alssels se lec secs eae = 2

282 MEMOIRS ON THE COLEOPTERA

Pronotum never with distinctly defined squamulose vitte, the squamules some-

times gradually closer toward the sides however... ............000eeeeee 7
2—Lateral vitte composed, at least in part, of larger, dense and conspicuous
squamules; interstitial series nearly always more or less abbreviated... .. .3
Lateral vittee composed of slender, equal and well separated squamules through-
out; interstitial series entire; body smaller and more slender............ 6
3—Lateral vitte broad and conspicuous, composed throughout of dense and
moderately:narrow scalés.e Age she 8 eA GA Se eee oe ee ee eee 4
Lateral vittee only dense toward base, obliterated or loose anteriorly.......... 5

4—Body moderately narrow and oval, with slightly prominent humeri, black
throughout, dense scales at the sides of the pronotum and on its inferior
flanks, also on the mesosternal sides and met-episterna, pale orange, else-
where white, the pronotal sides with a small denuded medial spot, the median
vitta loose and narrow; interstitial series denuded at the sides and apex,
the scales dense throughout beneath; beak (<”) rather thick, feebly arcuate,
almost as long as the head and prothorax, moderately sculptured and squam-
ulose; antennz piceo-rufous, at three-fifths; prothorax only a fifth or sixth
wider than long, the sides just visibly converging and straight, gradually
rounding and oblique in apical third, the truncate apex rather more than
half as wide as the base; punctures strong, deep and very close but not
crowded; scutellum arcuate at the sides and pointed, ogival, as long as wide,
closely albido-squamose; elytra elongate-oval, with rather obtuse apex,
distinctly wider than the prothorax and twice as long, almost one-half longer
than wide; grooves fully half as wide as the intervals—uniseriate with
rather coarse and close punctures; male abdomen feebly impressed and less
squamose medially toward base. Length 3.0 mm.; width 1.28 mm. Brazil
(Santtarem):, “One speemneina: 25 h.054 Sic dicts sean e ee amazonicus n. sp.
Body evidently stouter, similar in coloration, sculpture and vestiture throughout,
except that the lateral pronotal scales are a little larger and not quite so
dense, the squamules of the elytra coarser and less close-set in the series,
the latter more broadly denuded at the sides and for a greater distance along
the suture from the apex, also basally outside the sutural interval; beak (7)
somewhat shorter and thicker, with the longitudinal sculpture at the sides
evident, only about as long as the prothorax, or ( 2) much longer and a little
thinner, only slightly less sculptured, more arcuate and longer than the head
and prothorax; antenne piceo-rufous, submedial ( 2), at four-sevenths (07);
prothorax nearly as in amazonicus throughout; scutellum more quadrate,
obtuse behind; elytra scarcely more than a third longer than wide and not
quite twice as long as the prothorax; grooves not quite so coarse, the inter-
stitial series composed of less coarse punctures, tending somewhat to con-
fusion on the third; male abdomen similarly very densely squamose, with
very slight medio-basal modification. Length 2.6-3.2 mm.; width 1.15-1.5
mm. Brazil (Chapada—forest). November. Three specimens.
ornatus n. sp.
Body more elongate than in ornatus, nearly similar in color, sculpture and vesti-
ture, except that the white elytral series of squamules are less interrupted
toward base internally; beak (<) longer, thick, shining though longitudinally
sculptured, as long as the head and prothorax, or (@) shorter, thinner and
more tapering than in the same sex of ornatus, about as long as the head
and prothorax; antennz piceous, medial ( 9 ) or well beyond (o); prothorax
less abbreviated, but little shorter than wide, the sides feebly converging
and broadly, subevenly arcuate from base to apex, not subparallel toward
base as in ornatus; elytra longer, about twice as long as the prothorax,
similarly sculptured; abdomen with a rather distinct and slightly less
squamose medio-basal impression. Length 2.7-3.2 mm.; width 1.15-1.4
mm. Brazil (Chapada—forest). March and November. Four specimens.
medialis n. sp.

BRAZILIAN BARINE 283

5—Form oval; color black throughout, scarcely shining; squamules whitish
above, very dense and pale yellow throughout beneath; denuded area at
the sides of the prothorax very large, so that the lateral pronotal vitta becomes
very narrow, distant from the margin and subobliterated beyond the middle;
entire apex with loose long squamules, almost wanting along the median
line, but close and distinct basally; interstitial series of the elytra denuded—
that is, as usual, replaced by dark squamules—basally throughout the width,
except just behind the humeri, and also along the sides and at apex, the
white squamules of the first interval attaining the apex; beak (<") thick,
shining, moderately compressed and sculptured and a little longer than the
prothorax; antenne obscure rufous, at four-sevenths; prothorax only a fifth
wider than long, the broadly arcuate sides becoming subparallel basally, the
truncate apex four-sevenths as wide as the base; punctures strong, close, a
little less so beyond the middle; scutellum oblong, very densely squamose;
elytra evenly elliptic, a third longer than wide, barely twice as long as the pro-
thorax, the humeri evidently prominent laterally; grooves deep, somewhat
punctured along the bottom; rather strong and close uniserial punctures of the
intervals somewhat confused on the three inner; male abdomen with the
dense crust of scales a little thinner and feebly impressed medio-basally.
Length 3.0 mm.; width 1.35 mm. Brazil (Santarem). One specimen.
interruptus n. sp.
Form, coloration, sculpture and vestiture nearly similar, but with the space at
the sides of the prothorax not denuded but sparsely and finely squamulose,
so that the lateral pronotal vitta is evident throughout but composed of fine,
sparse squamules, denser at base; interstitial series of the elytra differing
in being entire throughout; beak (<7) nearly similar but not quite so thick,
and with the antenne more distal, at three-fifths, or (2) scarcely thinner and
but slightly less sculptured, but as long as the head and prothorax, with the
antenne at four-sevenths, blackish, with dull rufous funicle; prothorax
barely visibly shorter than wide, the sides subparallel basally, a little more
arcuate anteriorly, the apex half as wide as the base (o”), or more (2);
punctures strong, deep and very close-set throughout, even; scutellum well
developed, rounded-subquadrate, very densely squamose; elytra evenly but
rather obtusely elliptic, nearly a third longer than wide, slightly more than
or about a half longer than the prothorax; interstitial series confused toward
the suture, except behind the middle; male abdomen with the very dense
squamose crust only just visibly subimpressed and thinner medio-basally.
Length 2.8-3.2mm.; width1.3-1.4mm. Brazil (Chapada—forest). March
and November. Seven specimens.....:.........i22-.25-- lateralis n. sp.
6—Body narrowly subrhombic, deep black, the legs picescent; surface almost
opaque; vestiture white, the larger scales beneath narrowly separated; beak
(#) even in thickness, strongly, closely punctate and a little longer than
the head and prothorax, or (@) distinctly longer, somewhat more arcuate,
smoother and slightly tapering distally, in both separated from the head by
a rather distinct reéntrant angle; antenne rufous, medial (@), at four-
sevenths (<7); prothorax not quite as long as wide, the feebly converging
sides just visibly arcuate, more rounding apically; punctures strong, dense,
a little less so anteriorly; median vitta of loose slender squamules as wide as
the lateral: scutellum small, quadrate, squamose; elytra nearly a third
longer than wide, the oblique sides broadly, distinctly arcuate, the apex
rather narrowly obtuse, nearly a fourth wider than the prothorax and fully
twice as long; humeri not laterally prominent, but strongly oblique for some
distance to the base; grooves deep and strong; punctures of the interstitial
series moderate and not very close; male abdomen very faintly impressed
medio-basally, but not differently clothed. Length 2.4-2.65 mm.; width
1.0-1.2 mm. Brazil (Santarem). A single pair.......... densicollis n. sp.

284 MEMOIRS ON THE COLEOPTERA

Body narrowly suboval, deep black, with rufous legs; surface shining; vestiture
white, the larger scales of the under surface very dense throughout; scanty
and slender squamules of the median pronotal vitta extending transversely
across a distinct impunctate line, the lateral vitte broader, abruptly limited
internally, though very loose; strial intervals each with a single slender
series; beak (<) rather thick, even, feebly arcuate, somewhat compressed,
distinctly sculptured and as long as the head and prothorax; antenne at
four-sevenths, obscure rufous; prothorax nearly as long as wide, the feebly
converging sides straight, gradually rounding in about apical third, the

_ truncate apex more than half as wide as the base; punctures strong, separated
by not quite their own widths; scutellum densely albido-squamose; elytra
fully a third longer than wide, distinctly wider than the prothorax and
scarcely twice as long, the humeri less prominent and the sides less oblique
and less arcuate than in the preceding, the obtusely rounded apex broader;
sculpture almost similar; male abdomen with a distinct medial impression
toward base and rather less squamose than the rest of the surface. Length
2.25 mm.; width 0.9 mm. Brazil (Chapada—forest). November. One
SPECIMEN) Ls, FS eee 12 oo ap atin ce a ie serenus Nn. sp.

7—Pronotum distinctly though loosely squamulose, the squamules gradually
denser and somewhat coarser broadly toward the sides, the median vitta
NOMODVIOUSH Except tOWarG IAS smells ise eee cle ay he wee Rae tee ee eee 8

Pronotum evenly and loosely squamulose throughout... ................005: 9

8—Body narrowly suboval, black, with dark rufous legs; vestiture conspicuous,
white, the moderate scales confused on all the strial intervals, very dense
throughout beneath, the quadrate scutellum very densely squamose; beak
(o) thick, arcuate, strongly sculptured and squamulose, rufescent at tip, not
separated from the head and barely as long as the head and prothorax, or
(2) a little longer and thinner; antenne rufous, medial (9) or inserted
beyond the middle (o*); prothorax about as long as wide, the sides as in
the preceding; punctures rather strong and very close, but with shining
interspaces, without smooth median line; elytra elliptic, nearly a third longer
than wide, distinctly wider than the prothorax and about twice as long, the
humeri slightly prominent; sides moderately oblique and arcuate; grooves
moderate, the interstitial punctures moderate, not very dense; abdomen (<’)
scarcely at all modified, very densely squamose throughout. Length 2.25-
2.65 mm.; width 1.15-1.22 mm. Brazil (Chapada—forest). March and
November. Fitteentspecimensin +24), Soames ee oe chapadanus n. sp.

Body still narrower, smaller in size, piceo-rufous, the legs brighter rufous; vesti-
ture of the same general character as in the preceding, but much less dense,
especially on the elytra, where the strial intervals have one or two irregular
series; scales beneath not quite so large or dense as in the preceding; beak (<”)
less thick, rufescent, less arcuate, not quite so closely sculptured and barely
longer than the prothorax, the rufous antenne distinctly beyond the middle;
prothorax in outline as in chapadanus, but rather less strongly punctured
and with a partial impunctate median line; scutellum nearly similar; elytra
elongate-elliptic, very much narrower, nearly one-half longer than wide,
only a little wider than the prothorax and twice as long; grooves similar,
the interstitial punctures moderate and loosely set; male abdomen with the
feeblest trace of medio-basal impression. Length 1.9-2.2 mm.; width 0.75-
0.8 mm. Brazil (Chapada—forest). November. Three male examples.

silvestris n. sp.

g—Elytral grooves strongly punctured along the bottom, more than half as wide
as the intervals, the uniseriate punctures of which are rather small and well
separated; beak in the type very short, slender and cylindric, very much
shorter than the prothorax, the antenne well beyond the middle; prothorax

BRAZILIAN BARINE 285

somewhat narrower than the elytra, coarsely, closely punctate; scutellum

nude; abdomen unmodified. Length 2.8 mm.; width 0.9 mm. Brazil

(Para). [N. striatopunctatus Csy—Mem. Col., IX, p. 446.]
striatopunctatus Csy.

Elytral grooves never conspicuously punctate... 2335.5. .) f.ee a. ode. les. 10
10—Pronotumcoarselysand looselyapunctates.a7ee ass elses siden esse een II
Pronotum densely and more or less finely punctate; legs rufous............. 13

11—Prothorax shorter than wide, much less than half as long as the elytra;
body larger in size. Elongate-oval, deep black and rather shining, the legs
deep black and unusually short; pronotal squamules very fine, sparse,
darkish and inconspicuous, those of the elytra white, broader, distinct and
in single series, those beneath broader and somewhat close but not dense;
scutellum very densely albido-squamose; beak (@) not very slender, evenly
cylindric, shining, finely punctate, strongly arcuate and nearly as long as
the head and prothorax; antennz slender, medial and piceous; prothorax a
fourth wider than long, the sides straight and just visibly converging to
rather beyond the middle, thence gradually rounding and oblique to the
truncate apex, which is somewhat more than half as wide as the base; punc-
tures notably coarse and close, with narrow impunctate median line; elytra
oval, with arcuate sides and bluntly rounded apex, three-sevenths longer
than wide, distinctly wider than the prothorax; grooves deep and rather
coarse, finely punctate along the bottom; interstitial punctures in even
single series, somewhat coarse and close-set. Length 3.0 mm.; width 1.2

mime wbrazila(Entre Rios). Onerexample:..).).2 .-. sone es abruptus n. sp.
Prothorax nearly as long as wide, about half as long as the elytra; body much
Smallenaeuiranricta: oman oaa mar tease ars bac dame mata wR Raa 12

12—Body narrowly oval, deep black throughout and rather shining, the legs
short; vestiture white, distinct, in even narrow single lines on the elytra,
very fine and sparse on the pronotum, but rather long, whitish and evident,
the scales beneath white and somewhat dense; beak (co) very thick, barely
longer than the prothorax, feebly arcuate, rather closely punctulate and
feebly constricted near basal third, not separated from the head dorsally; an-
tenne beyond the middle, short and somewhat stout, the piceous funicle, how-
ever, gradually very slender basally; prothorax with the sides very feebly con-
verging and nearly straight, rounding a little anteriorly; punctures notably
coarse, slightly separated, the impunctate median line narrow and not very
obvious; scutellum densely albido-squamose; elytra three-sevenths longer
than wide, evidently wider than the prothorax and slightly less than twice
as long, the sides but slightly oblique and feebly arcuate; apex rather ob-
tusely rounded; grooves deep and abrupt; punctures of the even single
interstitial series somewhat coarse, well separated; male abdomen just
visibly impressed medio-basally, but not very differently squamose. Length
2.4 mm.; width 0.9 mm. Brazil (Santarem). One example. Named for
PCG eH EMM STILL stot GC ckhaccivesrertalys tally, cal duataacsann wiles. eta smithi n. sp.
Body broader, black, with longer and bright rufous legs; vestiture somewhat
similar; beak (co) much thinner, even in thickness, feebly arcuate and much
longer than the prothorax, the antennz well beyond the middle; prothorax
with more oblique sides anteriorly, the punctures coarse but distinctly less
so than in smithi; elytra more broadly elliptic, with more prominent humeri;
abdomen only modified at base by having the squamules narrower and less
dense. Length 2.6 mm.; width 1.1 mm. Brazil (Para). [N. parensis
sy Mera GONE yd ST |i alla Sates HS VER: a aenes tek Ey aNe as parensis Csy.
Body narrowly oval, somewhat as in smithi, but with relatively larger and much
less punctate prothorax, black throughout, the legs dark rufous and longer;
vestiture nearly similar, except that the fine sparse pronotal squamules are

286 MEMOIRS ON THE COLEOPTERA

shorter; surface somewhat less shining, the pronotum feebly alutaceous;
beak (co) very much more slender, moderately arcuate and longer than
the prothorax, closely punctulate; antenne beyond the middle, longer than
in smitht, the funicle relatively less narrowed toward base; prothorax nearly
as long as wide, the sides parallel and straight to about the middle, thence
rounding and distinctly oblique to the apex; punctures scarcely coarse and
separated by about twice their diameters; scutellum closely squamulose;
elytra evenly elliptic, a third longer than wide, slightly wider than the pro-
thorax and evidently less than twice as long; grooves abrupt and deep,
more than half as wide as the intervals, the punctures of which are rather
strong, well separated and in even single series; male abdomen rather
broadly and distinctly impressed medio-basally, but scarcely at all less
clothed, the entire abdominal vestiture composed of narrower and sparser
‘ squamules than usual. Length 2.1 mm.; width 0.75 mm. Brazil (Santa-

rem); One. examples.tks Hepa Vibe Oe 0 BPI ee a ee sodalis n. sp.
13—Elytra (<) more elongate, twice as long as the prothorax.............. 14
Elytra (o”) evidently less than twice as long as the prothorax............... 15

14—Body elongate-oval, black, with piceo-rufous elytra; vestiture uniform in
color, whitish, the squamules of the pronotum fine, moderately sparse and
not very conspicuous, very even on the elytra, somewhat larger but moderate,
loosely confused, but forming single lines laterally and posteriorly, wider
and moderately dense on the under surface; scutellum very densely squa-
mose; beak (<”) thick, compressed, finely sculptured, dull and feebly squam-
ulose, about as long as the prothorax and feebly arcuate, the antennz piceous,
near three-fifths; prothorax about as long as wide, the sides subparallel,
gradually rounding and more oblique anteriorly, the punctures strong, deep
and not quite contiguous, with a narrow partial impunctate line; elytra a
third to nearly half longer than wide, elongate-elliptic, slightly wider than
the prothorax; grooves deep and abrupt, the intervals finely, loosely punc-
tate, subcrenulate at the sides basally; male abdomen with the impression
along the middle basally rather deep and less squamose; anterior femora
normal. Length 2.35-2.45 mm.; width 0.9-1.0 mm. Brazil (Rio de
Janeiro). November. Three male examples.............. australis n. sp.
Body a little broader, suboval, more parallel than in australis, black, with obscure
piceous elytra; vestiture whitish, coarser and closer than in the preceding,
denser beneath, similarly arranged but more conspicuous on the elytra, the
scutellum similarly abruptly and very densely albido-squamose; beak (<”)
almost similar, but not quite so thick, feebly arcuate and as long as the
prothorax, the antenne near three-fifths; prothorax very slightly though
evidently wider than long, the sides broadly and evenly arcuate, becoming
gradually straight and parallel in basal half; punctures not quite so deep or
strong as in the preceding, very close-set, the median smooth line scarcely
apparent; elytra elongate-elliptic, almost one-half longer than wide, slightly
wider than the prothorax, the grooves deep and abrupt, but not quite so
coarse, the intervals even and with loosely confused small punctures; they
are a little wider than in australis; anterior femora clavate and rapidly
pedunculate at base in the type; male abdomen very much more densely
clothed with larger scales, the medio-basal impression feeble and not dis-
tinctly less squamose. Length 2.4 mm.; width o.g mm. _ Brazil (Chapada).
Mary) "A single rnales 00). 15 Marae ae Pe ae suffusus n. sp.
15—Form oval, moderately narrow, convex as usual, black, the elytra scarcely
less so; vestiture almost as in the preceding, except that the pronotal squam-
ules, though similarly uniform and rather abundunt, are shorter, finer and less
conspicuous, and that, on the under surface, they are dense on the prosternum,
met-episterna and abdomen, but elsewhere rather well separated; beak ()

BRAZILIAN BARINZ © 287

as usual, feebly arcuate, moderately thick, dull, feebly squamulose and as
long as the prothorax, somewhat less thick than in the preceding, the piceous
antenne similarly at three-fifths; prothorax as in suffusus throughout,
except that the punctures are deeper and somewhat less dense and the
truncate apex slightly wider, being evidently more than half as wide as the
base; elytra distinctly shorter, barely a third longer than wide, oval, with
the humeri rather more pronounced, more obviously wider than the prothorax,
not quite twice as long; grooves and intervals nearly similar; anterior
femora normal; male abdomen with the medio-basal impression rather deep
and evidently less squamulose. Length 2.3 mm.; width 0.85 mm. Brazil
(Santarenn) 3s Onetspecinieny. ery rine cs caine Hee eae fluminalis n. sp.
Form narrower than in any of the preceding, with narrower and more cylindric
prothorax, black, the elytra piceo-rufous; vestiture whitish and rather
conspicuous, the pronotal squamules abundant, uniform and not so fine as
in the preceding, coarser on the elytra and narrowly confused on some of the
intervals, dense beneath, the scutellum as in the preceding; beak (co) rather
slender and somewhat shorter than the prothorax, shorter and much thinner
than in any of the preceding and less sculptured, rufescent, or ( 2 ) not thinner
but more arcuate, gradually tapering distally and as long as the head and
prothorax; antenne rufous, at three-fifths (co) or four-sevenths (@); pro-
thorax cylindric, with the sides parallel and straight, rounding and oblique
in apical third, almost longer than wide (0), just visibly wider than long ( 2),
the punctures moderately fine, dense; elytra oval, rather obtuse at apex, ©
a third longer than wide, distinctly wider than the prothorax—especially
in the male—and not quite twice as long; legs shorter than in the preceding,
the femora normal; male abdomen almost unmodified. Length 2.0—2.2
mm.; width 0.72-0.8 mm. Brazil (Chapada—forest). June, August and
October bourespecimens: alah. jcc s cj Metals Mie dain sia cesarean. 4 egens n. sp.

The type of striatopunctatus was said to be the female in my
original description, because of the total absence of abdominal
modification, but the very short and narrowly cylindric beak, with
the antennze well beyond the middle, may possibly indicate the
male. The species is very peculiar in this way, as well as in the
almost completely glabrous scutellum.

Nicentridia n. gen.

In general structural features this genus agrees very well with
Nicentrus, but it differs in the minute size of the body, more sepa-
rated anterior coxe, in having a broad basal abdominal impression
margined by long erect hairs in the male, and in having the pro-
sternum tumid before each coxa. The beak is rather slender, only
feebly arcuate and similarly not separated from the head by an
obvious impression, with the mandibles similar; antenne beyond
the middle in the male, the first funicular joint fully as long as the
next three, the club abrupt, somewhat briefly oval, with its first
segment subequal to half the mass. The prosternum is flat and
separates the coxe by half their width. The body is very uniformly
and closely clothed above with pale narrow squamules, confused on
the strial intervals. There are two species as follows:

288 MEMOIRS ON THE COLEOPTERA

Body narrowly suboval, with small and subcylindric prothorax, testaceous in color
throughout, the squamules above conspicuous and very close, though not
dense as they are beneath; they are yellowish-white in color; beak evenly
subcylindric, feebly arcuate, moderately sculptured and squamulose and
somewhat longer than the head and prothorax, the latter almost longer than
wide, the parallel sides straight, gradually rounding and moderately converg-
ing beyond the middle, the punctures moderate and very close-set; basal
lobe small but somewhat rapidly formed; scutellum small, densely albido-
squamose; elytra evenly elliptic, three-sevenths longer than wide, a third
wider than the prothorax and much more than twice as long, the humeri
descending very obliquely to the base; grooves rather coarse and deep;
intervals about twice as wide as the grooves, the confused punctures moderate
and well separated; male abdomen with the basal impression large, broadly
oval, shallow, much more sparsely and finely squamulose than the rest of
the surface, the impression having along the sides some rather long erect
hairs. Length 1.6 mm.; width 0.55 mm. Brazil (Chapada). June. A
single Specinen.2. is. 27eimek’ aks leniee Al oder eee ee angusticollis n. sp.

Body broader, similar in color and general nature of the whitish vestiture, which
is however denser, still denser beneath; beak (co) not quite so slender and
relatively shorter, only a little longer than the prothorax, feebly arcuate
and closely squamulose, the antenne somewhat more apical and at fully
three-fifths; prothorax much less narrow, evidently shorter than wide, the

_ lateral outline and dense punctuation almost similar, the squamules a little
broader, denser and more conspicuous; elytra much broader, evenly elliptic,
scarcely a third longer than wide, a fourth wider than the prothorax and
only a little more than twice as long, the oblique basal sides of the humeri
shorter; grooves finer, the intervals nearly three times as wide, with the
confused punctures as in the preceding but closer; male abdomen with its
large and broadly oval, shallow and subglabrous basal impression almost as
in angusticollis. Length 1.7 mm.; width 0.7 mm. Brazil (Chapada). On
flowers in clearings. October. One specimen............. ochracea n. sp.

The female in Nicentrus and all allied genera seems to be much
rarer than the male.

Camerones n. gen.

This genus is proposed for a species with very exceptional thoracic
sculpture, the ground between the fine and very sparse punctures,
each of which bears a long stiff pale subsquamiform seta, being
densely opaque. This opacity, with high magnification, is observed
to be due to extremely minute, close, deep and well defined punc-
tures, and they are also present in very slightly less minute form
throughout the elytra, except along the polished bottom of the
grooves, but, on the elytra, they are separated by half their diam-
eters, while on the pronotum they are virtually in mutual contact,
though not distorted; it follows that the lustre of the elytra is less
densely opaque, being in fact strongly alutaceous. Throughout
the under surface, these minute punctures are closer than on the
elytra, with shining interstices. The beak is thick and rather short,
opaque, the opacity caused by minute parallel strigilation apically,
but becoming granuliform rugosity more basally, the antennz sub-

BRAZILIAN BARINZ 289

medial, moderate, with abrupt oval club; the tip of the beak is
broadly blunt, the mandibles somewhat small, dentate and decus-
sate. The prosternum does not seem to be impressed and the
coxez are rather well separated, the legs normal and the tibiz
straight. The prothorax is not tubulate at apex, the basal lobe
small, very short, gradual and arcuate and the scutellum quadrate,
very free, glabrous and impressed. The type and only known
species is the following:

Camerones semiopacus n. sp.—Oblong-oval, very strongly convex, with opaque
prothorax and alutaceous elytra, black, the elytra slightly piceous; vestiture
above consisting of extremely remote long stiff pale sete, beneath of shorter,
decumbent and sparse claviform scales; beak scarcely arcuate, slightly so apically,
thick and opaque, slightly shining distally, as long as the prothorax and separated
from the head by a shallow reéntrant angle; prothorax convex in lateral profile,
a fourth wider than long, the parallel sides strongly, subevenly arcuate, gradually
strongly oblique apically, wider at the middle than at base, the punctures small
and remote; elytra paralle!, the sides gradually arcuate behind the middle to
the rather broadly obtuse apex, a fourth longer than wide, as wide as the pro-
thorax and two-thirds longer; grooves abrupt, moderate, the obvious punctures
along the bottom bearing each a very minute slender squamule; intervals nearly
three times as wide as the grooves, with single series of rather large but very
shallow, extremely remote punctures; abdomen very evenly convex, somewhat
shining and minutely, sparsely punctulate in the type. Length 3.3 mm.; width
1.5mm. Brazil (Santarem).

It is highly probable that, in spite of the very thick beak, the
single known specimen of this species is a female, in which case, it
may be possible that there are some peculiar sexual characters
pertaining to the male.

Fishonia n. gen.

The remarkable species forming the type of this genus is oblong,
unusually depressed, shining and subglabrous. The beak is very
short and thick, circularly arcuate above in profile but almost
straight beneath, and separated from the head by a deep reéntrant
angle, the mandibles deeply cleft and decussate. The antenne are
submedial, the scrobes wide, oblique and attaining the eyes, which
are unusually short and transverse; the first funicular joint is
nearly as long as the next three, the outer joints gradually somewhat
wider and compact, the club large and evenly oval. The _ pro-
sternum is flat or very feebly concave, and separates the coxe by
nearly twice their width; it is not modified in the male. The legs
are short but not in any way peculiar, the prothorax parallel,
tubulate at apex, the basal lobe short and very gradually formed,
the scutellum flat, smooth, free, slightly elongate and obtriangular,
and the elytra coarsely grooved. The type is the following:

Fishonia brevinasus n. sp.—Depressed, polished, black, the elytra and under
surface piceous, the legs black; sparse dorsal punctures bearing each a short

T. L. Casey, Mem. Col. X, Aug. 1922.

290 MEMOIRS ON THE COLEOPTERA

erect seta, those beneath a little coarser, paler and decumbent, but not con-
spicuous; beak distinctly shorter than the prothorax, shining, thick, moderately
and loosely punctured and convex at the sides, only very little shorter in the
male, but more rapidly tapering; prothorax (o) smaller, a fourth wider than
long, with parallel and slightly arcuate sides, or (2) a third wider than long,
with the parallel sides nearly straight, more rapidly, arcuately converging apically
to the tubulation, which is short and much more than half as wide as the base in
both sexes; punctures deep but moderate and very sparse, becoming notably
coarse and less sparse laterally, and with a broad impunctate median area, not
attaining the apex; elytra a fourth longer than wide, very obtusely oval, the
arcuate sides but slightly oblique, a fourth wider than the prothorax and some-
what more than twice as long; surface slightly sloping downward at base; grooves
deep, moderately punctate, about half as wide as the intervals, having the moder-
ate and uniseriate punctures widely separated; male abdomen minutely, sparsely
punctate, rather coarsely toward the sides, very faintly impressed along the
median line basally. Length 2.7-3.25 mm.; width 1.25-1.6 mm. Brazil (Cha-
pada—forest). November. Eight specimens.

The flattened form and very short beak in this species would
seem to indicate some habitat rather confined as to space.

Sodesia n. gen.

In this genus the body is subevenly oval, distinctly convex, with
very scanty vestiture, the beak moderately long, slender, smooth
and cylindric, separated from the head by the feeblest sort of
impression, the mandibles rather small and decussate. The anten-
ne are behind the middle, with short scape and somewhat long
shaft, the first funicular joint as long as the next three, the three
outer joints longer, as well as somewhat thicker than the third or
fourth, the club abrupt, oval and but little longer than the three
preceding joints, its basal segment constituting half the mass.
Prosternum flat, separating the coxe by about their own width,
the legs exhibiting nothing abnormal, the anterior femora feebly
inflated in typical forms. The basal thoracic lobe is small but
distinct and is rather deeply and narrowly emarginate at tip, the
elytra sharply but moderately grooved. The three species here
assignable are as follows:

Body oval, rather convex, shining, black, the elytra, under surface and legs
slightly piceous; pronotum with slender short sparse erect sete, which are
still more remote, though individually longer, medially, the fine short and
erect pale fulvous sete of the elytra in single series; under surface with fine
and short, sparse paler setiforni squamules; beak evidently longer than the
head and prothorax, slender, very smooth, shining, cylindric and finely,
sparsely punctulate, becoming somewhat thicker, more closely and strongly
sculptured and feebly squamulose basally, evenly and very moderately
arcuate; antenne rather behind basal third, rufous; prothorax fully a third
wider than long, the feebly converging sides moderately and subevenly
arcuate, slightly more so anteriorly to the short subtubulate apex, which is
nearly half as wide as the base; punctures rather coarse but shallow and
somewhat close-set laterally, becoming remote, smaller and deeper medially,

BRAZILIAN BARIN 291

where there are also scattered minute punctures, the median line indefinitely
somewhat less punctate; scutellum free, rather longer than wide, narrowed
at base, with very oblique straight sides; elytra very obtusely oval, a fourth
longer than wide, a fourth wider than the prothorax and twice as long, the
grooves abrupt but not very deep and with distinct punctures along the
bottom, a third as wide as the flat intervals, which have rather small, moder-
ately separated punctures in single series; abdomen in the type convex,
finely, shallowly and sparsely punctate and with a feeble though obvious
impression medially at base. Length 3.3 mm.; width 1.65 mm. Brazil
(Santarem)) han Onerspecimenaua er pose os cickers a) ers eects opines sus sparsa n. sp.
Body smaller and more narrowly oval, dark, the legs and under surface brighter,
rufous, the very sparse vestiture nearly as in the preceding; beak in the
type cylindric and finely, rather more closely punctate, but very much
shorter, not quite as long as the head and prothorax, feebly arcuate, the
antenne near two-fifths; prothorax a fourth wider than long, nearly as in
the preceding, the minute punctures medially less evident; scutellum smaller
and shorter, barely as long as wide, the sides rather less converging from
apex to base; elytra as in sparsa, but with the grooves less coarse and not
evidently punctate, the punctures of the single interstitial series a little
coarser; abdomen in the male type feebly, loosely punctate, with a distinct
simple impression medially at base. Length 2.6 mm.; width 1.2 mm.
Brazile(Santaren)) 4 One Specimens. eee. ee oe brunnea n. sp.
Body smaller, much narrower and more parallel, shining, piceous, the elytra dull
rufous; vestiture very fine, sparse and indistinct on the pronotum, the
squamules moderately long, distinct and well separated in single lines on
the elytra, the scales small, sparse and inconspicuous beneath; beak ( @ )
long, not very slender, four-fifths as long as the elytra, strongly sculptured
and separated from the head by an abrupt and rather deep sulcus, which is
not evident in the other species; antenne medial; prothorax barely wider
than long, the sides nearly straight and barely visibly converging, rapidly
rounding and oblique in nearly apical third to the extremely brief and feeble
tubulation, which is not quite half as wide as the base; punctures coarse,
close, somewhat sparse and a little less coarse, without intermingled smaller
punctures medially, the smooth median line distinct; basal lobe small,
without the apical notch of the two preceding; scutellum small, barely as
long as wide, narrowed at base and feebly impressed—flat in the other two
species; elytra nearly a third longer than wide, slightly wider than the
prothorax and three-fourths longer, the arcuate sides more oblique than in
the others, the apex more narrowly rounded; grooves deep, impunctate,
half as wide as the intervals, which have the punctures of the single series
small and widely separated; abdomen rather coarsely, deeply punctate.

Length 2.1 mm.; width 0.9 mm. Brazil (Santarem). One specimen.
nana Nn. sp.

I am inclined to think that sparsa is described above from the
female, notwithstanding the evident medio-basal abdominal im-
pression, and brunnea from the male, but it hardly seems probable
that they constitute a single species, because the size and coloration
differ considerably and, besides this, the scutellum is of different
size and shape, and, more especially, the elytral grooves in brunnea
are less coarse than in sparsa and without the very evident punctures
of that species.

There can be scarcely any doubt that nana will have to be

292 MEMOIRS ON THE COLEOPTERA

separated as a distinct genus, allied somewhat also to Saldius, of
the Centrinini, but much narrower and more parallel of body.

Anotesiops n. gen.

The body here is more parallel and less subrhombic than it is in
Sodesia and much less strongly sculptured or setulo-squamose.
The beak is rather notably short and thick, but evenly cylindric
and coarsely, closely punctured, except at tip, though shining, the
antenne slightly beyond the middle, the scrobes but very slightly
oblique, the scape fully as long as the funicle and virtually attaining
the eye, the first funicular joint nearly as long as the next three,
which are short, the seventh but slightly wider, the club well devel-
oped, stout, oval, as long as the preceding four or five joints, abrupt
and with deep sutures, the first segment not quite half the mass.
The flat prosternum has, near the apex, the usual transverse con-
striction. The legs are rather short but not notably modified, the
non-tubulate prothorax with a very small and apically sinuate
basal lobe and the scutellum parallel, longer than wide, very free,
slightly convex and glabrous. The type is the following:

Anotesiops obidosensis n. sp.—Oblong-oval, convex and rather smooth, finely,
sparsely sculptured, somewhat shining and deep black throughout; beak in the
type distinctly arcuate, separated from the head by only a very feeble impression
and scarcely more than three-fifths as long as the prothorax, which is not quite
as long as wide, the sides broadly arcuate, gradually becoming parallel in about
basal half, the feeble truncate tubulation distinctly more than half as wide as
the base; punctures rather small and sparse, gradually perceptibly larger and
somewhat close toward the sides, nude; elytra about a third longer than wide,
obtusely suboval, broadly rounded behind, only a little wider than the prothorax
and two-thirds longer, the humeri but feebly tumid; surface with a few distinct
whitish squamules at base toward the scutellum, the grooves fine, only a fifth as
wide as the intervals, the fine uniserial punctures of which bear each apparently
an infinitesimal squamule; under surface having coarse punctures, bearing each
a very small slender squamule, barely more evident on the met-episterna than
metasternum, very minute on the abdomen, but coarser, closer and distinct on
the prosternum medially, also apically throughout the width. Length 3.2 mm.;
width 1.28 mm. Brazil (Obidos),—H. Rolle. One specimen.

I cannot state the sex of the type with any assurance; the
unmodified abdomen and prosternum would appear to indicate the
female, but the nature of the beak and the ultra-median antennz
are usually more indicative of the male.

Parafishonia n. gen.

In this at present monotypic genus, the body is slightly depressed,
though less so than in Fishonia, and the beak is much longer,
moderately thick, evenly cylindric, distinctly and evenly arcuate
and separated from the head by a moderate though obvious reén-

BRAZILIAN BARINZ 293

trant angle; it is convex but longitudinally sculptured at the sides,
finely and sparsely punctured elsewhere, and the mandibles are
deeply bifid and decussate. The antenne are short, medial, the
scape short, extending scarcely more than half way to the eyes,
which are of normal form, the first funicular joint as long as the
next three, 2—7 transverse, closely compacted and gradually be-
coming about as wide as the club, which is thick, briefly oval, not
abrupt and subequally segmented by the sutures. Prosternum flat,
separating the coxe by about their own width, sloping anteriorly
to a large deep transverse apical fossa. Femora long, not inflated,
the tibia much shorter, the prothorax briefly subtubulate at apex,
with the basal lobe very short, obtusely rounded and with a small
shallow apical sinuation and the scutellum small, free, flat and
oblong, deeply and abruptly grooved. The type is as follows:

Parafishonia setulosa n. sp.—Oblong-suboval, rather shining, black throughout,
the pronotum with long, somewhat thick and sparse erect sete, these being
almost similar on the elytra and rather widely spaced in single interstitial series;
under surface almost glabrous, the sete fine, short and sparse; beak in the type
strongly arcuate, nearly as long as the head and prothorax, with a few fine bristling
sete basally; prothorax short, three-sevenths wider than long, the sides straight
and parallel, gradually rounding beyond the middle to the tubulation, which is
half as wide as the base; punctures small and remote, rather abruptly coarse
and longitudinally rugiform at the sides; elytra over a fourth longer than wide,
the sides strongly oblique, evenly and somewhat strongly arcuate to the narrowly
rounded apex, a fifth wider than the prothorax and rather more than twice as
long; grooves very deep, not obviously punctured and nearly half as wide as
the intervals, the well spaced punctures of the single series being notably small
in size; abdomen convex, minutely and remotely punctate, the first suture
obsolete medially. Length 3.0mm.; widthi1.4mm. Brazil (Chapada). March.
One specimen.

The sex of the type is probably female, because of the absence
of abdominal impression.

Nestrada n. gen.

This genus, although apparently associable otherwise, differs
from any of the preceding in having erect slender prosternal spines
in the male. The body is stout, oblong-suboval and _ strongly
convex, closely and conspicuously sculptured, the pronotum longi-
tudinally strigilate as in Centrinites, with which it is doubtless
phylogenetically allied. The vestiture is fine, sparse and incon-
spicuous above, but in the form of broader, closer and white scales
beneath, asa rule. The beak is long, rather slender, distinctly and
evenly arcuate, nearly smooth ( @ ), or distinctly sculptured though
otherwise not differing much, except in being a little less slender
(@), separated from the head by an evident sulcus; antenne
submedial in both sexes, rather slender, the scape not extending
quite to the eye, the first funicular joint as long as the next two,

294 MEMOIRS ON THE COLEOPTERA

the second as long as the succeeding two, the outer joints not
dilated, the club elongate-oval, narrow, especially in the male,
rather abrupt, with its basal segment fully two-thirds the mass.
The prosternum is flat, separating the coxe by fully their own
width and with a small feeble apical fossa, the spines of the male
usually not separated by a circular perforation. The legs are rather
long and slender, the prothorax narrowly tubulate at apex and with
moderate basal lobe, the scutellum small, free, subquadrate, finely
and sparsely punctate and with a few infinitesimal squamules, and
the elytra are grooved. The species are as follows:

Body very stout and convex, with the inflated prothorax fully as wide as the
elytra. Piceous, not shining, the scanty vestiture yellowish above, white
but inconspicuous beneath; beak (<) long, distinctly longer than the elytra,
very gradually and feebly tapering and with moderate but close punctures
at the sides, or (@) as long as the elytra, more slender and slightly less
arcuate, the antenne slender, piceous; prothorax two-fifths wider than
long, wider at basal fourth than at base, the sides rounded at base, thence
converging and straight to about apical third, then rounding and oblique to
the tubulation, which is scarcely more than two-fifths as wide as the base,
narrower and less inflated in the female; strigilation nearly uniform, dense,
rather coarse and waving, with a very fine and subtumid smooth median
line; elytra scarcely a fourth longer than wide, the arcuate sides strongly
oblique, the apex narrowly rounded, not wider than the prothorax (<’) or
distinctly wider (2), only one-half longer; grooves not very deep, rather
more than half as wide as the intervals, which have roughly confused and
somewhat coarse sculpture; male abdomen strongly convex, rather strongly,
loosely punctured and with moderate basal impression, the prosternal spines
much longer than in any other known species of the genus, very slender,
oblique, nearly straight and slightly longer than the prothorax in the type,
the usual apical fossa enlarged and deepened between them. Length 2.7—3.0
mm.; width 1.4-1.55 mm. Brazil (Santarem). Three specimens.

inflatula n. sp.

Body less stout, the prothorax not inflated in the male and with the sides not

curved inward at base; elytra distinctly wider than the prothorax in both

2—Form oval and convex, smaller and less stout than in the preceding, rufo-
piceous in color and similarly closely, strongly sculptured, also with scanty
vestiture; beak (co”) as long as the elytra, even in thickness and strongly
sculptured, moderately and evenly arcuate, or (@) a little longer than the
elytra, more slender, smoother and somewhat thicker basally than apically,
with some close punctures and a few squamules near the base; antennz
medial in both sexes; prothorax nearly a third wider than long, the feebly
converging sides slightly arcuate, rounding evenly beyond the middle to the
tubulation, which is distinctly less than half as wide as the base in both
sexes; sculpture nearly as in the preceding; elytra similar in outline, a
fourth longer than wide, evidently wider than the prothorax in both sexes
and fully one-half longer; grooves coarse; intervals alternating in width
much more obviously than in inflatula, similarly rugosely punctate; male
abdomen nearly similar, the prosternum with two very slender straight
spines, varying from nearly obsolete to three-fourths as long as the prothorax.
Length 2.2-2.5 mm.; width 1.1-1.25 mm. Brazil (Santarem). Four speci-

BRAZILIAN BARIN 295

Form, sculpture and scanty vestiture nearly similar, except that on the elytra
the strial intervals are more feebly punctato-rugose, so that the individual
confused punctures, though smaller, are very much better defined and rather
well separated; color dissimilar, piceous-black, the legs longer; beak dis-
tinctly longer than the elytra, almost as in compacta, but the first funicular
joint of the antenne is longer; prothorax less abbreviated, only a fifth wider
than long, the sides feebly converging from the base and just visibly arcuate,
more rapidly rounding and oblique in apical third to the tubulation, which
is wider, nearly half as wide as the base; sculpture of dense longitudinal
ruge nearly similar; scutellum more narrowed from apex to base; elytra
similar in outline, but with rather more prominent, obtuse humeri and still
more distinctly wider than the prothorax, barely one-half longer; grooves
much less coarse than in either of the preceding; intervals strongly alter-
nating in width. Length 2.7 mm.; width 1.35 mm. Brazil (Santarem).
Avsingle semale examples 22). 20c). caw os. ets oe ing weet ae eee fusca n. sp.

The two females that I have associated with the male type of
inflatula, are not quite so stout and have the elytra slightly though
obviously wider than the prothorax, the latter not inflated as it is
in the male. This is probably a genus confined to the Amazon
Valley.

Ethelda n. gen.

The small and narrow, densely squamose species forming the
type of this genus, greatly resembles an unusually densely clothed
Nicentrus to external view. The beak is short and thick, very
feebly arcuate and not separated from the head by any kind of an
impression. The antennz are slender, inserted at apical fourth of
the beak, the first funicular joint as long as the next three, the
club small, narrowly oval and rather abrupt, with its basal segment
somewhat more than half the length. The prosternum is nearly
flat, the coxe rather approximate, separated by scarcely a third
their width. The legs are somewhat slender and normal, the
prothorax subcylindric and not tubulate at apex, the basal lobe
small, the scutellum very densely squamose and the elytra with the
moderate striz almost concealed by the dense scaly covering. The
type is as follows:

Ethelda squamosa n. sp.—Narrow, elongate-suboval and black, very densely
clothed with large and nearly white scales, slightly separated on the metasternum
and abdomen; beak squamose, except at apex, and feebly sculptured, compressed,
feebly tapering and only four-fifths as long as the prothorax, the antennae dull
rufous; prothorax as long as wide, the parallel sides nearly straight, gradually
broadly arcuate beyond the middle; punctures moderate, dense; elytra almost
one-half longer than wide, elongate-elliptic, more than a fourth wider than the
prothorax and fully twice as long, the humeri not prominent, descending obliquely
upon the base; striz not fine, abruptly grooved, each of the small punctures along
the bottom of the grooves bearing a scale as large as those of the intervals and
almost exactly similar to them, so that, when perfect, the surface is homogeneously
squamose throughout; male abdomen feebly impressed and a little less squamose
medio-basally. Length 2.4 mm.; width 0.85 mm. Brazil (Uacarizal). Feb-
ruary. One specimen.

296 MEMOIRS ON THE COLEOPTERA

In many respects this might be considered a genus of the Nicentrid
series, but the mandibles are quite different. It is, at the same
time, apparently wholly out of place among the other genera with
which it is here associated.

Rancea n. gen.

The body here is elongate-oval, strongly convex, rather pointed
behind, with small prothorax and, in great part, glabrous surface.
The beak differs very much in the sexes, being very slender in the
female and rather abruptly inflated in about basal fifth, while in
the male it is much shorter, subeven and with a thickness about
equal to that of the basal enlargement of the female; it is not
separated from the head by an obvious impression. The antenne
are medial in the female, at nearly three-fifths in the male and are
slender and rufous, the scape slender, with clavate apex and not
quite attaining the base; the first funicular joint is as long as the
next two, the second also somewhat elongate, and the club is small,
oval and rather abrupt, with its basal segment somewhat over half
the mass. The prosternum has an abrupt glabrous canaliculation,
broadest apically and narrowing toward the coxe, the latter very
narrowly separated, though not quite contiguous; it is not spinose
in the male. The legs are normal, the tibiz straight and the
claws strongly divergent and very moderate in size. The prothorax
is obliquely and feebly tubulate at apex, the basal lobe small, the
scutellum parallel, longer than wide, glabrous and deeply longitu-
dinally concave, and the elytra are coarsely, very abruptly and
deeply grooved, with strong strial punctures. The species are as
follows:

Body. suboval, shining, deep black, with rufo-piceous prothorax; pronotum
glabrous, with a cluster of white scales at the middle of the base and at each ,
basal angle, the elytra glabrous throughout; coarse sternal punctures bearing
each a very small slender squamule, those on the prosternum are also very
fine and sparse but denser along the edges of the canal, the abdomen virtually
glabrous; beak (9) rufous, darker basally, a fourth longer than the head
and prothorax, extremely slender—viewed laterally, but somewhat flattened
dorsally, almost smooth, with a few squamules at base; prothorax only a
fifth or sixth wider than long, the sides subparallel and feebly arcuate,
gradually rounding and oblique beyond the middle to the gradual tubulation,
which is more than half as wide as the base; punctures small but deep,
separated by two or three times their diameters, more minute apically, a
little coarser and less separated laterally; elytra triangular, nearly one-half
longer than wide, the oblique sides evenly and distinctly arcuate, the apex
almost acutely rounded, nearly a third wider than the prothorax and two
and one-half times as long; humeri descending rapidly upon the base;
grooves strongly punctured along the bottom, as wide as the intervals
laterally, but not discally, the intervals with single series of extremely
minute nude punctules; abdomen strongly convex, finely, loosely punctate.
Length 2.8 mm.; width 1.25 mm. Brazil (Chapada). November. A
single females isc. a rsicl moe cetacean Caen nO SEO elect parviclava n. sp.

BRAZILIAN BARINE 297

Body nearly similar throughout, but a little less elongate, the vestiture similar,
except that the fine sparse squamules of the prosternum are replaced by
large, broadly linear, very dense scales; integuments shining, black, the

* prothorax dark rufous; beak (<) piceous, feebly arcuate, cylindric, finely,
rather closely punctulate, in great part sparsely squamulose at the sides,
only a little longer than the prothorax, the latter shorter, a fourth wider
than long, otherwise nearly similar, the apex four-sevenths as wide as the
base; punctures finer and still sparser throughout; elytra nearly similar
throughout but narrower; male abdomen strongly convex, finely, remotely
punctate and without distinct sexual modification; legs rather long and
slender. Length 2.7 mm.; width 1.15 mm. Brazil (Chapada). November.
Onenmaletexamplenters jor sree Hee AR, Snetiales Shee hosts & semitestacea n. sp.

Although the unique types above described are of different sexes,
and from the same locality, I think that they represent distinct
species, because of the radical difference in prosternal vestiture,
this not being a character subject to sexual modification, so far as
I know.

Pseudorancea n. gen.

In this genus the body is more evenly oval, shining and still more
completely glabrous, and it also differs very much in the structure
of the beak and tarsi. The beak is very thick, strongly compressed
and barely at all arcuate, separated from the head by a deep reén-
trant angle, and with the flat sides sparsely punctate, though
opaculate, and limited above by longitudinal raised lines. Antenne
submedial, rather short, with coarse and deep scrobes, the first
funicular joint as long as the next three, the outer joints gradually
somewhat wider and compact, so that the moderate oval club,
with basal segment about half the mass, is rather gradual in forma-
tion. The prosternum is apparently feebly impressed and the coxe
very narrowly separated. The legs are short and the tibiae have
an arcuate outline distally; the tarsi are moderately thick, with
unusually elongate basal joint, the fourth small, extremely slender
and with small and rather approximate but free claws. The pro-
thorax is gradually but strongly tubulate at apex, with short and
feeble basal lobe, the scutellum small, free, subquadrate, narrowed
toward base and with a narrow canaliculation basally and the
elytra somewhat finely punctato-striate. The type is the following:

Pseudorancea spissirostris n. sp.—Elongate-oval, convex, glabrous and shining,
black throughout; beak (<7) thick, but as long as the head and prothorax, finely
punctate and medially subcarinate above, very feebly arcuate; antenne barely
beyond the middle, piceous; prothorax about as long as wide, the parallel sides
nearly straight in about basal half, very gradually and evenly rounding thence to
the tubulation, which is four-sevenths as wide as the base, the punctures mod-
erately small, deep, separated by fully three times their diameters, only a little
larger and less sparse at the sides, with an elongate vacant sublateral area anda
well defined smooth median line; elytra one-half longer than wide, elliptic, the
apex evenly and strongly rounded, only very little wider than the prothorax and

208 MEMOIRS ON THE COLEOPTERA

twice as long, the grooves narrow and extremely shallow, sometimes indicated
almost solely by the distinct though not coarse, well separated strial punctures;
intervals virtually smooth, almost four times as wide as the striae; male abdomen
almost impunctate except latero-basally and at apex, having medio-basally a
rather deep but simple impression; prosternum not spinose. Length 3.1 mm.;
width 1.25 mm. Brazil (Constancia),—Clark. One example, communicated
by Desbrochers des Loges.

The only genus at all closely allied to this is Ranceoma, to be
subsequently described.

Iopsidaspis n. gen.

The body in this genus is still more narrowly and regularly
elongate-oval, shining and completely glabrous, the beak rather
thick but shining and finely, sparsely punctate, only very feebly
compressed at the sides basally, very feebly arcuate, gradually a
little more so toward base, and separated from the head by a fine
and rather feeble sulcus. Antenne submedial, the shaft somewhat
slender, glabrous, with evident bristles, the first joint as long as
the next two, the second also notably elongate and as long as the
succeeding two, the club moderate, elongate-oval. Prosternum
apparently somewhat impressed, the coxe very moderately sepa-
rated. Legs slender, glabrous and rather long, the tarsi with the
claw-joint entirely normal, wholly different from that of the pre-
ceding genus; tibiz long, straight, not arcuate externally toward
apex; prothorax not evidently tubulate at apex, the basal margin
strongly beaded, the lobe almost wanting. Scutellum free, parallel,
a little longer than wide, the elytra finely but abruptly and deeply
grooved. ‘The type is as follows:

Topsidaspis truncatula n. sp.—Extremely narrow, oval and convex, polished
and glabrous throughout and bright brownish-rufous; beak very nearly as long
as the head and prothorax, the latter apparently somewhat longer than wide, the
sides evenly and feebly converging from base to apex, slightly arcuate for some
distance beyond the middle, the truncate apex two-thirds as wide as the base;
punctures extremely minute and remote, scarcely differing laterally; elytra fully
two-thirds longer than wide, very elongate-subelliptic, narrowly rounded at tip,
a sixth wider than the prothorax and somewhat less than two and one-half times
as long; grooves very fine, a fifth or sixth as wide as the smooth intervals; male
abdomen convex, extremely minutely, remotely punctate throughout, without
definite sexual modification, the last two sutures straight, barely at all reflexed at
the sides. Length 2.8 mm.; width o.gmm. Brazil (Santarem). One specimen.

This genus is probably allied closely to Tops, but is placed here
for some taxonomic reasons.

Ranceoma n. gen.

Another monotypic genus seems to be necessary for an oval
black shining species, not very much unlike Rancea and Pseudorancea

BRAZILIAN BARINE 299

in general appearance, but differing from the former in the sexually
subsimilar beak, less approximate anterior coxz, broader and not
sharply limited prosternal canal and different form of antennal
club, scutellum and some other features, and, from the latter, in
the normal fourth tarsal joint, different form of beak—not separated
by a distinct sulcus, and several other important characters. The
body is narrowly oval, smooth and convex, entirely glabrous above,
with some white squamules on the prosternum and a very slender
one in each of the sparse and evenly distributed punctures of the
remainder of the under surface. Beak moderately thick, feebly
arcuate, shining and finely, sparsely punctate, uncompressed and
separated from the head by the feeblest kind of impression in both
sexes, very little shorter and thicker in the male. Antenne at
apical third (o") or just beyond the middle (¢), moderate, the
first funicular joint longer than the next two, the second very
slightly elongate, the outer joints a little broader, the club stout,
oval, as long as the four or five preceding joints and subequally
segmented by the sutures. The prosternum has a shallow canal,
squamulose and not at all abruptly defined; it is unarmed in the
male; the coxz are separated by about a third their width. The
legs and tarsi are of the usual type, the prothorax subquadrate and
not definitely tubulate at apex, the basal lobe short, very gradual
and rounded and the scutellum smooth, somewhat wider than long,
feebly impressed and obtrapezoidal; the elytra are grooved. The
type is the following:

Ranceoma uniformis n. sp.—Oval, in great part glabrous, deep black through-
out and polished; beak (<7) about as long as the prothorax, or (9) as long as
the head and prothorax, a little thinner, somewhat more tapering and just visibly
more arcuate; prothorax a fifth wider than long, the sides parallel and nearly
straight, rapidly rounding in apical fourth, the truncate apex half as wide as the
base (<7), slightly more ( 9); punctures moderate but deep and conspicuous, sepa-
rated by two to four times their diameters, becoming only a little coarser but
scarcely less sparse laterally, and with a smooth median line, not attaining the
apex; elytra elongate-elliptic, more than one-half longer than wide, a fifth (<7)
or a fourth (2) wider than the prothorax, and between two and three times as
long, the humeri smooth and feebly prominent; grooves abrupt, but only moder-
ately deep, not distinctly punctate, only a third as wide as the smooth intervals
or less; abdomen with distinct but sparse punctures, the last two sutures arcuate,
well reflexed at the sides, the first very feeble, having at base a small feeble im-
pression or flattening in the male, which is devoid of punctures. Length 3.0-3.2
mm.; width 1.2-1.3 mm. Brazil (Chapada—forest). November. Eight speci-
mens.

This and the three preceding genera might be considered analogues
of the nearctic Haplostethops.

300 MEMOIRS ON THE COLEOPTERA

Eusomenes n. gen.

This and the four following genera constitute a group allied in
general features to the nearctic genus Dirabius, and also the pale-
arctic Limnobaris. They include the largest and broadest species
of the tribe, and are uniformly deep black in color. In Eusomenes
the body is oblong-oval, strongly convex and glabrous. The beak
is extremely short, thick, feebly arcuate, truncate, strongly sculp-
tured and separated from the head by a fine and somewhat shallow
sulcus; its dorsal outline in profile is subtumid medially in the male.
Antenne slightly beyond the middle, moderate in length, rather
rigid, with unusually short first funicular joint and moderate oval
club. The prosternum is flat in both sexes, with a deep subtrans-
verse apical fossa, limited laterally by short ridges, not spinose in
the male, the coxe separated by about two-thirds of their width.
The third tarsal joint is oval, incised as usual and not much dilated,
the legs of normal type. The thoracic base is broadly arcuate,
without median lobe, the scutellum oblong, parallel or nearly so,
feebly impressed, free and with a few minute punctures, the elytral
strie consisting of scarcely impressed series of distinct oblong
punctures. There are two species as follows:

Body stouter, feebly arcuate at the sides and shining, glabrous; beak (<) scarcely,
or (¢) somewhat more evidently more than, half as long as the prothorax,
antenne piceous-black, the scrobes very oblique, the scape about attaining
the base; prothorax about as long as wide, the parallel sides feebly arcuate,
rounding in apical third to the short oblique tubulation, which is arcuate
medially at apex and much more than half as wide as the base; punctures
strong and deep, separated by but little more than their own diameters,
becoming fine medio-basally and with a narrow partial impunctate median
line; elytra one-half longer than wide, the sides only feebly oblique and
slightly arcuate, the apex obtusely rounded, only very little wider than the
prothorax and three-fourths longer, the humeri obtusely subprominent;
striae very superficial, but deep at base, the large oblong punctures very
narrowly separated; intervals wide, with single series of rather coarse and
very close-set, almost nude punctures; male abdomen moderately but
deeply, loosely punctate, having along the middle basally a distinct simple
impression. Length 5.2-5.4 mm.; width 2.2-2.22 mm. Brazil (Chapada).
Mery ainel aime. Ao Geesimemicthe d444 od.o00cnuncoetene curtirostris n. sp.

Body much narrower, similar in color and lustre, glabrous and deep black through-
out; beak (2) not quite so thick as in the preceding, but only barely visibly
more than half as long as the prothorax, the antenne black; prothorax
when viewed in lateral profile, somewhat more convex, fully as long as wide,
the sides parallel and nearly straight only in barely basal half, thence more
gradually and very moderately arcuate to the subobsolete tubulation, which
is only very feebly arcuate—very much more widely and feebly than in the
preceding—and but little over half as wide as the base; punctures similar
but closer and not so modified medio-basally; scutellum narrower; elytra
longer, more than one-half longer than wide and but little less than twice as
long as the prothorax, the sides more nearly parallel, feebly arcuate, the apex
relatively still more broadly obtuse and rounded, the humeri subsimilar;

BRAZILIAN BARINZ 301

strie finer, with the punctures narrower and sublineiform, the punctures of
the interstitial series smaller, similarly confused on the third; abdomen
more finely and sparsely punctate. Length 5.0 mm.; width 1.9mm. _ Brazil
(Chapada). November. One female specimen.......... amputatus n. sp.

The extremely short beak will render the identification of both
these species very easy.

Parasomenes n. gen.

The body in this genus is much smaller than in the preceding
and differs in many structural characters. The beak is not quite
so short or thick, more strongly arcuate, not compressed, more
finely and sparsely punctate, and is separated by a very obtuse
shallow reéntrant angle; antenne short, slightly ultra-median,
with coarse and deep, oblique scrobes, the first funicular joint
longer than the next two, the club as long as the four preceding
joints, oval, with deep sutures, the first segment less than half the
mass. The flat prosternum separates the coxe by a little less than
their own width. The legs are rather short but of the usual type,
the third tarsal joint very much shorter than in the preceding and
normally bilobed, the claw-joint shorter and very much more
slender. The prothorax is broadly and feebly subtubulate at tip,
the base with a very short and gradual rounded median lobe, the
scutellum subsimilar, being much narrower than long and free and
the elytra with moderate strie, which are only feebly and indefi-
nitely punctate and gradually very fine posteriorly. The met-
episterna are not glabrous, coarsely and closely punctate as in the
preceding, but are narrower and plentifully squamulose, the squam-
ules fine and not very dense or closely decumbent, the rest of the
surface glabrous. The type is as follows:

Parasomenes brevirostris n. sp.—Oblong, parallel, rather convex and shining,
deep black throughout and glabrous, except as mentioned above; beak four-fifths
as long as the prothorax, which, in lateral profile, is only very feebly convex,
short, two-fifths wider than long, the sides parallel and straight in three-fifths,
thence broadly rounded and oblique to the truncate and subtubulate apex, which
is almost three-fifths as wide as the base; punctures fine and sparse, notably
stronger and rather close at the sides, the median smooth line entire, broader
centrally; elytra oblong, a third longer than wide, the sides parallel and feebly
arcuate, the apex rapidly and very obtusely rounded, very slightly wider than
the prothorax and between two and three times as long, the humeri only slightly
tumid; strie at about basal third a third or fourth as wide as the intervals,
which have single uneven series of very fine, well separated punctures, the general
surface feebly alutaceous; under surface finely, loosely punctate, the abdomen
more minutely and sparsely so. Length 3.2 mm.; width 1.35 mm. Brazil
(Chapada). December. One specimen.

In the type, the first abdominal segment has the punctures
stronger and less sparse than the rest of the surface, but does not
seem to be at all impressed, so that it is probably female.

302 MEMOIRS ON THE COLEOPTERA

Lissomenes n. gen.

In this genus the beak is also notably short, and is compressed,
so that its depth is materially greater than its width, but with the
sides evenly convex and not at all flattened. The antenne are
short and medial, the first funicular joint about as long as the
next three, the seventh unusually modified, being large, dilated to
the width of the base of the club, which it resembles in its fine
opaque sculpture, and longer externally than internally, the club for
this reason gradually formed; it is as long as the four preceding
joints, oval, with its basal segment about half the mass. The
prosternum is flat, with a simple transverse anterior fossa, and
separates the coxe by a little less than half their width. The legs
are of normal type, the third tarsal joint dilated and bilobed, the
claw-joint of the usual size and curvature. The prothorax is
narrowly tubulate at apex, the base broadly arcuate, without
definite median lobe, but with a small and shallow sinus at the
scutellum, which is less free than in the two preceding genera,
oblong, parallel and with a few minute punctures, the elytra with
even and feebly punctulate, rather deep grooves. The entire under
surface is glabrous, the met-episterna without trace of the squamules
of the preceding genus. The type is as follows:

Lissomenes 2xqualis n. sp.—Oblong, only very moderately convex, glabrous,
shining and deep black throughout; beak (9) about three-fourths as long as
the prothorax, feebly, but in distal half more strongly and obliquely, arcuate,
separated from the head by a rather deep sulcus; antennz piceous; prothorax
fully a third wider than long, the sides parallel and broadly arcuate, increasingly
so beyond about the middle, the tubulation much less than half as wide as the
base; punctures rather small but deep and conspicuous, separated by two or
three times their diameters, stronger but not dense at the sides, the discal part of
the surface only feebly convex, rapidly more so laterally; smooth median line
narrow and partial; elytra a little less than one-half longer than wide, the sides
slightly oblique and feebly arcuate, gradually rounding posteriorly through the
circularly rounded apex, very slightly wider than the prothorax and between
two and three times as long, the humeri slightly tumid; strie rather deep but
not sharply grooved, a third or fourth as wide as the intervals, which have single
series of rather small but evident, well separated punctures; abdomen convex,
very finely, remotely punctate throughout. Length 4.0 mm.; width 1.65 mm.
Brazil (Chapada). November. One specimen. é

The type has no trace of abdominal sexual modification and is
therefore a female, in all probability. The upper surface is much
less convex than in the two preceding genera, and it therefore,
doubtless, has a very different habitat.

Somenes n. gen.

The body in this genus is rather stout, oblong and convex,
somewhat as in Eusomenes, but is apt to have rather conspicuous

BRAZILIAN BARINAE 303

though sparse vestiture of narrow pale scales. The beak is moder-
ately long, cylindric, notably slender in the female, less so in the
male, feebly arcuate and in both sexes always strongly tumid
dorsally at base, just before the moderate sulcus separating it from
the head. The antenne are well beyond the middle(<), or medial
(92), the scrobes only feebly oblique, the scape long, not quite
attaining the base, the funicle slender, with the first joint long,
slightly longer than the next two, one or both of which is slightly
elongate, the club very moderate in size, abrupt, much narrowed
at base, oval and with its first segment fully half the mass, some-
times more. The prosternum (<') has two slender oblique pro-
cesses, separated anteriorly by a deep cavity, or ( @ ) is flat and only
with the usual transverse apical constriction; the coxe are very
moderately separated in both sexes. The legs are moderate, the
tarsi rather wide, the second joint more or less transverse, the third
dilated and bilobed and the claw-joint well developed. The pro-
thorax is tubulate at apex, though not very abruptly, and has the
base very broadly and gradually lobed medially, the scutellum
rather narrower than long and obtrapezoidal as a rule, strongly
impressed and glabrous, the elytra deeply and abruptly grooved.
The species appear to be somewhat numerous, those before me
from a single locality being as follows:

Prothorax inflated and arcuate at the sides; sparse slender scales above conspic-
uous and pale fulvous in color, white beneath. Body oblong, convex,
shining, deep black throughout, the narrow fulvous scales above evenly
distributed, well separated, confused on the elytra, those beneath shorter,
broader and more decumbent, and also well separated throughout; beak (<7)
evenly cylindric but not very slender, feebly arcuate, shining, strongly,
loosely punctate and sparsely squamulose, a little shorter than the prothorax,
the slender antenne, at three-fifths, blackish; prothorax not quite a third
wider than long, the parallel arcuate sides rapidly more rounding near the
apex, which is somewhat less than half as wide as the base; punctures
coarse, somewhat impressed and separated by their own diameters, the
scutellum small, free and subquadrate; elytra nearly one-half longer than
wide, the sides barely at all oblique, broadly, feebly arcuate, broadly and cir-
cularly rounded at apex, not wider than the prothorax and four-fifths longer,
the humeri slightly tumid; grooves with catenulate bottom, a third as wide
as the intervals, which are not finely, loosely, asperulately punctate; male
abdomen strongly, rather loosely punctate, deeply and simply impressed
medially toward base, the prosternal spines subporrect, feebly arcuate and
a third as long as the prothorax in the type. Length 5.0 mm.; width 2.15
mm. Brazil (Chapada). November. One specimen.....subinflatus n. sp.

Prothorax not inflated, the subparallel sides evenly and feebly, though evidently,
arcuate, very much less so than in the preceding; scales throughout broader,
white, denser and very conspicuous. Form oblong, convex, deep black in
color throughout; scales above elongate and parallel, white, rather close-set
and conspicuous, beneath shorter, distinctly separated; beak (9?) slender,
cylindric, smooth, shining and finely, sparsely punctate, abruptly strongly
and closely punctate and conspicuously squamulose at the thicker extreme

304

MEMOIRS ON THE COLEOPTERA

base, nearly as long as the head and prothorax, the antenne slender, piceous,
the club and enlarged seventh funicular joint finely, densely pubescent;
prothorax a fourth wider than long, the feebly arcuate sides more rapidly
rounding in apical fourth, the apex half as wide as the base; punctures
coarse, deep, separated by less than their widths, with a narrow smooth line
centrally; scutellum larger, longer than wide, deeply impressed; elytra in
outline nearly as in the preceding but only three-fourths longer than the
prothorax and slightly, though evidently, wider; grooves and intervals
similar in proportion, but the punctures of the latter are very different,
being small, rounded and isolated, sparsely confused; abdomen rather closely
punctulate and conspicuously squamose. Length 5.0 mm.; width 2.23 mm.
Brazile(Ghapada)s)|unes Onerspecimenseen aerree ater ae SOSpes Nn. sp.

Prothorax not inflated, the subparallel sides never more than just visibly arcuate;

vestiture white, consisting of fine, short, sparse and more or less inconspicuous
SGuamilesiaboveriienm cpicmrcie wl oe coe ws pee clei Seelam pea ore eget 2

2—Body notably stout, oblong, convex, shining and deep black throughout;

sparse white squamules above very much shorter than in the preceding two
species, but not very slender and distinct, short and well separated beneath,
closer on the met-episterna, especially at apex and base; beak (2) shorter,
as long as the prothorax, rather slender, very feebly arcuate, cylindric, the
sculpture nearly as in the preceding, but less dense and less squamulose at
base; antennz slender, medial, blackish, the first funicular joint somewhat
longer, equal to the next three; prothorax not quite a third wider than long,
the sides rapidly rounding in apical fourth, the apex rather more than half
as wide as the base; punctures somewhat coarse, very deep, separated by
about half their diameters, with a narrow but entire median smooth line;
scutellum shorter and broader, subquadrate, very deeply and smoothly con-
cave; elytra only a third longer than wide, the sides parallel and feebly arcuate,
rapidly rounding behind through the very broadly and obtusely rounded
apex, slightly wider than the prothorax and four-fifths longer; grooves a
third as wide as the intervals, which are finely, loosely and subasperately
subpunctate, the punctures not rounded or distinctly defined; abdomen
rather closely but not coarsely punctate. Length 5.2 mm.; width 2.5 mm.
Brazil\(Chapada). | |unes) Avsineletemaless on 14. sseee- ee obtusus n. sp.

Body less stout, oblong-suboval, strongly convex, deep black and shining through-

out, the white squamules above very fine and sparse throughout, less conspicu-
ous though as usual broader but well separated beneath, a little larger and
closer evenly throughout the met-episterna; beak (<”) rather stout, but evenly
cylindric, feebly arcuate, three-fourths as long as the prothorax, finely,
loosely punctulate and remotely squamulose; antennz slender, blackish,
sometimes with rufous scape, inserted at four-sevenths; prothorax only a
fifth wider than long, the sides somewhat as in the preceding, but more
gradually rounding anteriorly; apex half as wide as the base; punctures
less coarse and separated by one-half more than their diameters, with similar
smooth line; scutellum smaller, less concave and more obtrapezoidal; elytra
nearly one-half longer than wide, less obtuse, subevenly and semicircularly
rounded behind, subparallel at the sides, very slightly wider than the pro-
thorax and fully three-fourths longer; grooves and intervals nearly similar,
the interstitial punctures however very fine, sparsely confused, but individ-
ually distinct; male abdomen closely punctured, with a rather deep impres-
sion medially toward base; prosternal spines subporrect, half to three-fourths
as long as the prothorax in the types. Length 4.6-5.0 mm.; width 2.1-2.2
mm. Brazil (Chapada). November. Two male specimens. .spinifer n. sp.

Body still less stout, elongate-suboval, deep black and rather shining throughout,

the whitish squamules above very remote, much shorter, more slender and

BRAZILIAN BARINZ 305

sparser than in any other species, very inconspicuous, sparse and only a
little larger beneath and within the coarse sternal punctures, barely more
evident on the met-episterna; beak (<) feebly arcuate, cylindric, finely
punctulate, not very stout and almost as long as the prothorax, or (@) yery
little more slender, smoother and about as long as the head and prothorax;
antennz slender, blackish, medial (2), at four-sevenths (o); prothorax a
fourth wider than long, the parallel and scarcely arcuate sides somewhat
gradually rounding well beyond the middle, the apex fully half as wide as
the base (co), much more (@); punctures strong, separated by their own
widths, with a narrow subtumid smooth median line; scutellum not elongate,
strongly obtrapezoidal and concave; elytra fully one-half longer than wide,
semicircularly rounded behind, slightly wider than the prothorax and four-
fifths longer; grooves somewhat less coarse and deep than in the preceding,
the interstrial sculpture fine, sparse and confused; male abdomen nearly
similar but not so closely punctate; prosternal spines porrect and arcuate,
a third to two-fifths as long as the prothorax in the three males at hand.
Length 4.6-4.75 mm.; width 1.85-1.95 mm. Brazil (Chapada). June and
INOVem ber we nOULGpECIMeNS.n eae cre el ti, sory alac ead regestus n. sp.

The species of this genus are among the more conspicuous of the
tribe Limnobarini, though not so markedly so as the following.

Demoda n. gen.

This genus is founded upon a relatively large stout parallel
species, of very striking appearance in the present group, due to
the peculiar arrangement of the vestiture. The beak is thick,
perfectly cylindric, of moderate length and not separated from the
head by any kind of an impression. The antenne are slender,
slightly ultra-median in the male, the scrobes moderately oblique,
the glabrous funicle with stiff bristling setae and not much enlarged
distally, the first joint rather longer than the next two, which are
short, the club large, abrupt, oval, about as long as the five pre-
ceding joints, with its basal segment more than half the mass.
The male prosternum has two short curved spines, separated by a
small oval perforation, the coxe very moderately separated. The
legs are simple but not slender, the tarsi broad, with transverse
second joint and dilated and bilobed third, the fourth normal and
the claws short, thick and divergent. The prothorax is not tubulate
at apex, the base broadly arcuate, except at the sides, the scutellum
quadrate, dull, free, with a transverse submedian canaliculation—an
almost unique peculiarity—and the elytra are very moderately
grooved. The type is as follows:

Demoda vittata n. sp.—Broadly oblong, parallel, moderately convex, rather
shining and piceous in color throughout; scales above pale yellowish, long and
linear but large and conspicuous, dense throughout the periphery of the pronotum,
also extremely dense on intervals 3-7-9 of the elytra, the three vitte uniting
near the apex, that of the seventh not attaining the base, the fifth is also clothed,
but sparsely, with finer squamules, becoming dense at base, the other intervals
with a few very fine scattered squamules; under surface with shorter and broader,

qT. . Casey, Mem: Cols X4Oct.1922:

306 MEMOIRS ON THE COLEOPTERA

whiter scales, which are narrowly separated; beak (<”) as long as the prothorax,
moderately and evenly arcuate, not quite as thick as the anterior femora, very
moderately and sparsely punctate, sparsely squamulose at the extreme base;
antenne dark rufous, at four-sevenths; prothorax fully three-sevenths wider
than long, the sides parallel and nearly straight, circularly arcuate beyond the
middle to the truncate apex, which is less than half as wide as the base; punctures
rather small but deep and somewhat sparse, dense anteriorly and laterally, with
elongate vacant sublateral spaces and a broad smooth median line, not attaining
the apex; elytra three-sevenths longer than wide, with straight parallel sides,
circularly rounding in apical third, only just visibly wider than the prothorax
and nearly two and one-half times as long, the humeri slightly swollen; intervals
finely, loosely and confusedly punctate, the three densely squamose ones the
widest; male abdomen feebly impressed medially toward base, the prosternal
spines short and thick, about as long as the femoral thickness. Length 6.3 mm.;
width 3.0 mm. Brazil (Chapada). May. One specimen.

This is one of the more remarkable and isolated of the Brazilian
Barine.
Valdenus n. gen.

Here, the scheme of generic organization makes another departure,
in the direction of the subarctic genus Sibariops, which also occurs
in Brazil. In the present genus the body is narrow, parallel, moder-
ately convex, polished and glabrous, somewhat resembling, in dorsal
aspect, the Tenebrionid genus Echocerus. The beak is more or less
slender, cylindric, smooth or feebly sculptured, and is separated
from the head by an extremely feeble to obsolete impression. The
antenne are submedian, with very feebly oblique scrobes, the first
funicular joint longer than the next two, which are not elongate,
the club oval, rather abrupt, as long as the four preceding joints,
and subequally divided by the evident sutures. The prosternum
is feebly impressed along the middle, not spinose in the male and
separates the coxe by less than half their width. The legs are
slender, shining and subglabrous, the tarsi moderately slender, the
first joint of the posterior longer than the second, the claws rather
small and slender. The prothorax is not tubulate at apex, the
basal margin feebly arcuate at the middle, but without a definite
median lobe, the scutellum subparallel, free and longer than wide,
and the elytra with abrupt and rather fine deep grooves. There
are Six species at hand as follows:

Seventh and eighth elytral grooves abruptly terminating some distance behind
the humeri. Body stouter and more convex than in any other, dark rufous
and polished throughout, glabrous, excepting some fine close whitish squam-
ules on the met-episterna and a few others along the sides of the prosternal
depression; beak (<7) slightly shorter, or (2) a little longer, than the head
and prothorax, cylindric, very smooth and feebly arcuaté, the punctures
minute and sparse, gradually a little closer basally; antennz. just behind
(2), or very slightly beyond (<), the middle; prothorax a fourth wider
than long, strongly convex, the sides broadly arcuate, becoming straighter
and parallel behind about the middle; punctures minute and very remote

BRAZILIAN BARIN4E 307

medially, with broad smooth median line, gradually somewhat less fine and
less remote toward the sides; elytra three-fifths longer than wide, the sides
parallel and straight, gradually obliquely rounding behind, the apex narrowly
rounded, with reéntrant sutural angle, slightly wider than the prothorax
and between two and three times as long, the humeri distinctly swollen and
slightly prominent; grooves deep, impunctate even at the sides, about a
fourth as wide as the very smooth intervals; abdomen very finely, remotely
punctulate. Length 3.15-3.3 mm.; width 1.2 mm. Brazil (Santarem).

AD WrOSSME CIE Wy MMA tere ree cs aAs Natnp a oisicunis al tue bention ga: ohare xt levis n. sp.
Seventh and eighth grooves attaining the humeri as unimpressed series of de-
2k Le ed TTA Dre enn a cerca tee i go eta cate am cans o( Saleh cie,'eh eve, sane =’ 2

Seventh and eighth grooves abrupt and deep, like the dorsal grooves, and virtually
attaining the humeri; abdomen much more strongly punctate, the sides of
the prothorax more abruptly rounded apically than in any other section.. .3

2—Body elongate-suboval, moderately narrow; color, lustre and vestiture as in
the preceding; beak (<7) as long as the head and prothorax, moderately
arcuate and finely, sparsely punctate, or (@) nearly a fourth longer, more
slender and gradually somewhat tapering, almost similarly punctulate, the
antenne nearly as in the preceding species; prothorax only a fourth to fifth
wider than long, the subparallel and broadly arcuate sides gradually more
arcuate anteriorly, but less strongly than in /evis; punctures nearly similar
but closer at the sides and along the base, especially toward the middle;
scutellum more elongate; elytra similar in outline but narrower, two-thirds
longer than wide, the grooves relatively somewhat coarser, the sparse in-
finitesimal punctulation of the intervals barely visible, not obsolete as in
levis; male abdomen distinctly, not very sparsely punctate on the first two
segments, having medially a distinct impression toward base. Length 2.7—
2.8 mm.; width 1t.0-1.1 mm. Brazil (Chapada—forest). October and
Novemloee, IKh@ Gasotutsieres sage ercadlor to eae bee bec piceolus n. sp.

Body a little less narrow, similar in color, polished lustre and squamulation of the
met-episterna; beak (2) longer and smoother than in piceolus and a third
longer than the head and prothorax, the punctulation very fine and sparse;
prothorax larger, a little shorter, fully a fourth wider than long, the sides
as in piceolus; punctures much more minute and remote, not so close laterally
and not closer along the base; elytra broader, three-fifths longer than wide,
parallel, the nearly straight sides rapidly rounding and oblique behind to
the similarly narrow apex, as in levis; grooves nearly similar; scutellum
smaller and much shorter, subquadrate; abdominal punctures basally much
more minute and remote than in either sex of piceolus. Length 2.9 mm.;
width 1.15 mm. Brazil (Chapada—forest). October. A single female.

incomptus n. sp.

Body smaller, rather less convex, similar in color, lustre and in the squamulose
met-episterna; beak (9) much shorter, a little more arcuate, especially at
base, not as long as the head and prothorax, minutely, sparsely punctulate
and slender as usual; prothorax less than a fourth wider than long, the sides
parallel, feebly and subevenly arcuate, more rapidly rounding in about
apical fourth to the slightly constricted and very faintly subtubulate apex,
of which there is no trace in the preceding; punctures very fine, only half as
widely separated as in incomptus, coarser but not closer laterally; scutellum
small, feebly impressed, subquadrate, only very little longer than wide;
elytra narrower, almost three-fourths longer than wide, less distinctly wider
than the prothorax and between two and three times as long, the outline
nearly similar but with the humeri more sharply prominent; grooves not so
coarse, the intervals smooth; abdomen subimpunctate. Length 2.6-2.7
mm.; width 0.85-0.9 mm. Brazil (Santarem). Three examples.

elongatus n. sp,

308 MEMOIRS ON THE COLEOPTERA

Body almost similar in nearly all respects, but a little smaller and still more
slender; beak (9) still somewhat shorter, more evenly, feebly arcuate,
similarly separated from the head by a rather evident impression; prothorax
fully a fourth wider than long, the parallel sides less rapidly rounding anteri-
orly—in about apical two-fifths, the apex similar; punctures similar but
rather sparser; scutellum more minute, quadrate; elytra nearly similar
in every way, except that they are more nearly three. times as long as the
prothorax and with the humeri somewhat more obtuse; abdomen similarly
minutely and remotely punctate; the apparent male is similar to the female,
except that the beak is more slender and distinctly shorter than the prothorax,
but the abdomen is without trace of basal impression. Length 2.25-2.55
mm.; width 0.7-0.85 mm. Brazil (Santarem). Five specimens.

angustulus n. sp.

3—Form narrow and elongate, slightly more oval than in the preceding species,
piceous-black, the elytra and legs more rufous; surface glabrous and polished,
each of the coarse punctures of the under surface with a distinct slender
squamule, these not closer on the met-episterna; beak (2) short, very
slender, cylindric, evenly and more distinctly arcuate than in the preceding
types, and only as long as the prothorax, the antenne medial; prothorax a
fourth or fifth wider than long, the sides parallel and straight, rapidly round-
ing in apical fourth or fifth, the faintly tubulate truncate apex distinctly
more than half as wide as the base; punctures deep, moderate in size, sepa-
rated by about twice their diameters, a little coarser and closer laterally;
median smooth line partial; scutellum larger, as wide as long, obtrapezoidal
and broadly concave; elytra two-thirds longer than wide, a fourth wider
than the prothorax and two and one-half times as long, the sides not parallel
as in all the preceding, but feebly oblique and slightly arcuate, the apex
more obtusely rounded; humeri slightly prominent; grooves a third or
more as wide as the very smooth intervals, which are narrower laterad;
abdomen convex, with medially obsolete first suture, the punctures rather
coarse but shallow and sparse, each with a conspicuous linear white squamule.
Length 2.5 mm.; width 0.85 mm. Brazil (Chapada—forest). October.
Oneispecimell.> «aus Aedeeane. anes ae eters patie RRO punctiventris n. sp.

The species of the piceolus section are closely allied among them-
selves, but seem to be distinct as defined above; the Chapada and
Santarem species form two rather definite sections of the genus.

Microtorcus n. gen.

The body in this genus is very small, slender, parallel, somewhat
convex and only moderately shining. The beak, in the male at
least, is short, slender, very evenly cylindric and separated from
the head by an evident though moderate sulcus. Antenne just
beyond the middle and notably short, the scrobes but feebly oblique,
the first funicular joint about as long as the next three, the outer
joints gradually wider and compactly joined, the club large, oval,
gradual and as long as the five preceding joints, its first segment
more than half the mass. The prosternum is flat, gradually concave
apically, not spinose in the male and separates the very moderate
cox by rather more than half their width. The legs are normal
throughout but somewhat short, the prothorax abruptly tubulate

BRAZILIAN BARINZ 309

at apex, with short and gradual, broadly rounded basal lobe, the
scutellum minute, subtumid but not prominent, very free, its flat
upper surface a little longer than wide, the elytra moderately
striate. The type is as follows:

Microtorcus tubulatus n. sp.—Narrow, parallel, convex, deep black throughout,
the surface alutaceous and feebly micro-reticulate, glabrous, excepting single
interstitial series of small and slender, whitish squamules and others, small and:
sparse, beneath; beak (0) distinctly but loosely sculptured, three-fourths as
long as the prothorax, equal in diameter throughout and feebly, evenly arcuate;
prothorax very nearly as long as wide, the sides parallel and straight, abruptly
rounding at apical fourth to the tubulation, which is truncate and two-thirds as
wide as the base; punctures coarse, deep and rather close-set, gradually smaller
and separated by twice their diameters medially, with a well defined entire
smooth median line; elytra a little less than one-half longer than wide, not wider
than the prothorax and about three-fourths longer, parallel, gradually, evenly
rounding in posterior two-fifths; humeri feebly tumid; strie rather fine but
deep, with fine punctures along the bottom; intervals three times as wide as
the strie, each with a single series of small but deep and distinct punctures;
male abdomen almost impunctate, except at the sides, having along the middle
basally a deep and simple impression. Length 2.0 mm.; width 0.65 mm. Brazil
(Santarem). One specimen.

The sharply marked thoracic tubulation distinguishes this species
readily from its neighbors.

Torcobius n. gen.

Another small, cylindric and still more strongly sculptured and
squamose species forms the unique type of this genus, so far as
known, but it is very different from the preceding in all its structural
characters. The beak is feebly arcuate, cylindric and not separated
from the head by vestige of impression, the eyes more approximate
than the rostral width and with an elongate impression between
them. The antennze are submedial, with rapidly descending
scrobes, slender funicle, with its first joint about as long as the
next two, the outer joints not dilated, the narrow elongate-oval
club rather small, about as long as the four preceding joints and
apparently subequally divided by the sutures. The prosternum is
broadly, concavely canalate, the coxz somewhat large and very
moderately separated, and the legs are rather long and slender,
normal in structure. Prothorax not at all tubulate at apex, the
basal lobe very small and feeble, the scutellum small, glabrous,
subquadrate and deeply impressed and the elytra rather coarsely
and deeply striate, but not abruptly grooved. The type is the
following:

Torcobius sculptilis n. sp.—Strongly convex, parallel and cylindric, deep black
and closely sculptured, the legs bright rufous; beak (2) three-fourths as long as
the prothorax, the sides with a moderate longitudinal furrow; antennz piceo-

310 MEMOIRS ON THE COLEOPTERA

rufous; prothorax about a sixth longer than wide, the sides parallel and straight,
rapidly becoming oblique and straight in apical third, the truncate apex almost
three-fourths as wide as the base; punctures coarse, deep and dense, though not
quite in actual contact, each puncture with an infinitesimal squamule, the median
line anteriad irregularly smooth; surface with clustered white scales at the hind
angles and also a few along the base medially; elytra slightly more than one-half
longer than wide, as wide as the prothorax and three-fifths longer, the humeri
slightly tumid; sides parallel and straight, arcuate and oblique posteriorly to
the narrowly obtuse apex, with feebly reéntrant sutural angle; intervals less
than twice as wide as the strize, each with a single series of moderate punctures,
bearing long and distinct white squamules; under surface with coarse punctures,
bearing slender white squamules, closer on the met-episterna, the abdomen smooth
and minutely, remotely and feebly punctulate. Length 2.2 mm.; width 0.65
mm. Brazil (Santarem). A single female specimen.

Easily identifiable by the elongate non-tubulate prothorax, rather
large eyes, strong sculpture and evenly cylindric form of body.

Anatorcus n. gen.

This genus is also necessitated by a small cylindric and closely
sculptured species, having isolated structural characters. The beak,
probably in the male, although there are no abdominal modifica-
tions, is short and notably thick, not separated by a distinct im-
pression, the antennz at apical third, the scape about as long as
the funicle and almost attaining the eye, the funicle rather thick,
the outer joints compact and gradually wider, the first thick and
nearly as long as the next three, which are short, wider than long
and compact, the outer joints pallidly setulose, the club relatively
large, elongate-oval, slightly abrupt, truncate at base, as long as
the five preceding joints and with its subcylindric basal segment
distinctly ‘more than half the mass. The eyes are moderate and
widely separated as usual. The prosternum is flat, separating the
rather small coxe by three-fourths their width; the legs are short
but of the usual structure. Prothorax with obsolete basal lobe,
the scutellum small, free, subquadrate, narrowed at base and sinuate
at apex, flat and glabrous, and the elytra are strongly striate. The
type is the following:

Anatorcus densus n. sp.—Cylindric, moderately convex, deep black throughout,
the legs obscure rufous; squamules white, slender and sparse, evenly distributed
above and in single interstitial series, slender and sparse beneath, rather denser
and coarser on the prosternum, also dense on the narrow met-episterna; beak
four times as long as thick, two-thirds as long as the prothorax, strongly, some-
what closely punctate and loosely squamulose, the antenne piceous; prothorax
evidently longer than wide, very briefly and feebly subtubulate at apex; sides
parallel and very feebly, evenly arcuate, only a little more so toward the tubula-
tion, which is truncate and two-thirds as wide as the base; punctures strong and
rather close, though separated, the smooth median line broad, narrow apically
and not quite attaining the base; elytra fully three-fourths longer than wide,
just visibly wider than the prothorax and four-fifths longer, the humeri feebly

BRAZILIAN BARINA ei

tumid; sides parallel and straight, rounding in apical third, the apex somewhat
obtuse; strial punctures evident, each bearing a squamule similar to those of
the moderately and uniserially punctate intervals; abdomen smooth, remotely
and feebly punctate. Length 2.6 mm.; width 0.8 mm. Brazil (Para). Des-
brochers des Loges. One specimen.

To be known readily from Torcobius by the short thick beak,
briefly tubulate prothorax, flat prosternum and other rather con-
spicuous features.

Sibariopsida n. gen.

The two species placed in this genus bear a striking resemblance
to Sibariops, but the beak is short, compressed, thicker and coarsely,
deeply sculptured. The antennz are ultra-median, rather slender,
the first funicular joint longer than the next two, the club oval,
rather abrupt and with its basal segment much less than half the
mass. The prosternum is flat and separates the coxe by fully
their own width. The legs are of the usual structure, the eyes very
moderate, separated by the full rostral width, the prothorax non-
tubulate, with the basal lobe very feeble and broadly arcuate, the
scutellum free, glabrous and oblong and the elytra somewhat finely
striate. The two species at hand are the following:

Form oblong-suboval, smooth, feebly alutaceous, deep black and glabrous, the
minute remote white squamules of the under surface coarser, closer and
distinct on the met-episterna; beak (o) narrower than deep in section, the
compressed sides strongly and closely sculptured, distinctly arcuate, scarcely
over three-fourths as long as the prothorax, the antennz piceous, at apical
third; prothorax a fourth wider than long, the parallel sides feebly arcuate,
more rapidly rounding and oblique in about apical third; punctures very
small, sparse, the smooth median line unevenly broad; elytra barely over
one-half longer than wide, slightly wider than the prothorax and distinctly
more than twice as long, the sides broadly arcuate, becoming straighter and
parallel basally, the apex obtusely rounded, with reéntrant sutural angle;
humeri slightly tumid; striae finely punctate; intervals fully four times as
wide as the striz, each with a single series of minute and remotely separated
punctures; male abdomen very finely, sparsely punctate, with a distinct
simple impression along the middle basally, the prosternum unarmed.
Length 2.85 mm.; width 1.2 mm. Brazil (Entre Rios). One specimen.
ruginasus n. sp.
Form narrower, elongate-suboval, very much smaller in size, deep black, with
short piceous legs, subglabrous, the small and very slender pale squamules
of the elytra in single series, those of the under surface not denser on the
met-episterna; beak ( 2 ) slightly compressed, strongly and closely punctured,
almost straight, similarly separated from the head by a distinct impression
and three-fourths as long as the prothorax; antenne piceous, submedial;
prothorax slightly longer than wide, the parallel sides straight, rounding in
about apical two-fifths, the truncate apex two-thirds as wide as the base;
punctures fine and rather sparse; elytra barely one-half longer than wide,
only just visibly wider than the prothorax and two-thirds longer, in outline
nearly as in the preceding; strize somewhat fine but deep, feebly punctate;
punctures of the single interstitial series very minute and widely separated;
abdomen finely, sparsely punctate. Length 1.75 mm.; width 0.6 mm.
Brazil (Chapada—forest). November. One specimen........ docilis n. sp.

¢

312 MEMOIRS ON THE COLEOPTERA

It is probable that these species inhabit flowers in the forest
clearings.

Sibariops Csy.

This is a large genus, distributed from the nearctic to the neo-
antarctic regions, but not occurring, so far as known, along the
Pacific coast. While the body is very much as in the preceding
genus, the beak in both sexes, and in all the species known to me,
is wholly different, being very slender, evenly cylindric and very
feebly sculptured, often tumid dorsally at base just before the
feeble separating impressed line. The antennze are more or less
slender, with very moderate oval club, the prosternum flat, moder-
ately separating the coxe, unarmed in the male or sometimes with
two moderate slender spines. The rather numerous Brazilian
species are exactly similar in habitus to those from nearctic America,
as well as evanescens and eneola Chmp., which I happen to have
from Central America. The Brazilian species at hand are as follows:

Body much larger in size, more broadly oblong-suboval. Black, the legs also
black and notably short; surface subglabrous, the elytra with single series
of minute subfuscous squamules, those beneath whiter and a little less
minute, sparse, not closer on the met-episterna; beak (9) very slender,
shining, evenly cylindric, slightly arcuate, finely, subserially and sparsely
punctate, distinctly tumid above at base and almost as long as the prothorax;
antenne medial, slender, the notably elongate first funicular joint as long as
the next two, the second also as long as the succeeding two; prothorax fully
a fourth wider than long, the parallel sides straight, rounding and converging
in apical two-fifths; truncate apex four-sevenths as wide as the base; punc-
tures rather coarse, deep, separated by not quite twice their diametersand
smaller near the smooth median line; elytra a third longer than wide, very
slightly wider than the prothorax and twice as long, the sides parallel, very
gradually rounding behind through the obtuse apex, with feebly reéntrant
sutural angle, the humeri distinctly tumid; strie strong and abrupt, deep
and evidently punctate, a third as wide as the intervals, having well spaced
infinitesimal punctures, somewhat confused and barely observable; abdomen
finely but strongly, rather closely punctured. Length 3.4 mm.;. width 1.4
mm. Brazil (Chapada). November. One specimen... .puncticollis n. sp.

Body small in,sizé dnd: usually, enueh marrower. ....1. oie: © aoe, ees a cee oe 2
2—Upper surface almost glabrous; squamules, if present, extremely minute,

fine, Sparse yan sions POMS be ccn << 21. » dks alelveonn eatacdena ny, | abe en ea ee 3
Upper surface sparsely but more or less conspicuously albido-squamulose.. . .. . 4

3—Body elongate-suboval, convex, deep black and polished, virtually glabrous,
the squamules in single insterstitial series extremely small and slender, also
on the under surface; legs and antenne piceo-rufous; beak (<7) slender,
cylindric, smooth, rather closely punctate basally, broadly and very feebly
tumid above basally, very slightly arcuate, four-fifths as long as the pro-
thorax, the antenne rather short, only slightly ultra-median, the second
funicular joint quadrate, the first segment of the club rather more than
half the mass; prothorax very nearly as long as wide, the sides feebly,
subevenly arcuate, almost parallel posteriorly; apex nearly three-fifths as
wide as the base; punctures fine and rather sparse; elytra slightly over
one-half longer than wide, slightly wider than the prothorax and not quite

BRAZILIAN BARIN 313

twice as long, the sides feebly, subevenly arcuate, rapidly rounding through
the obtuse apex, the humeri but feebly tumid; stria fine, the intervals with
minute and well separated unilineate punctulation; male abdomen finely,
remotely punctulate, with a deep and simple impression medio-basally, the
prosternum unarmed. Length 1.8-1.9 mm.; width 0.68-0.7 mm. Brazil
(Entre Rios). September. Two male specimens........... piceipes n. sp.
Body broader than in the preceding, similar in lustre, coloration and in the
extremely fine, sparse and inconspicuous squamules, but with the legs
blackish-piceous; beak (co) not so slender, strongly and closely punctate
and longitudinally seriate, feebly tumid above basally, slightly bent dorsally
at the middle, the lower outline more nearly straight, three-fourths as long
as the prothorax, or (@) similar in length but much more slender and less
punctate; antenne slightly beyond the middle, more distinctly in the male;
prothorax nearly as long as wide, the sides as in the preceding; punctures
also nearly similar in form and distribution; elytra broader, not quite
one-half longer than wide, oval, with the humeri feebly tumid, slightly
wider than the prothorax and two-thirds longer; striz fine but deep; punc-
tures of the single interstitial series minute and widely spaced; male abdomen
convex, finely, sparsely punctate, with a distinct simple medio-basal im-
pression. Length 1.8-2.3 mm.; width 0.6-0.85 mm. Brazil (Santarem).
SGV CIES MECC HGS Vatar fete tks tates gee Uw PR hake BeCL FN FaLdee Yo ie finitima n. sp.
Body nearly similar but a little smaller, deep black and shining, the legs dark
rufous; fine squamules of the upper surface somewhat more numerous, less
minute and not so slender, being easily visible, though not conspicuous, in
the single interstitial series, also rather more evident beneath and similarly
not distinctly more numerous on the met-episterna; beak (2) very slender
and cylindric, somewhat punctate, rather distinctly arcuate, feebly tumid
above at base and slightly shorter than the prothorax, the latter similar in
form and sculpture, slightly shorter than wide in the female; elytra a little
narrower, similarly oval, with rather obtuse apex and feebly reéntrant sutural
angle, one-half longer than wide, evidently wider than the prothorax and
three-fourths longer, the strie and sculpture nearly as in finitima; abdomen
rather finely, sparsely punctate, with evident fine squamules. Length
1.8-2.0 mm.; width 0.75-0.8 mm. Brazil (Chapada—forest). August to
November. Four specimens, all females................ intermedia n. sp.
4—Form narrow, parallel, black, with short and slender black legs; white
squamules above slender but rather close and distinct in single interstitial
series, beneath sparse but somewhat dense on the met-episterna and also on
the third and fourth abdominal segments; beak (<) very short, cylindric,
feebly arcuate, closely sculptured, sparsely squamulose, not evidently tumid
above at base, four times as long as wide and not three-fourths as long as the
prothorax, or (2) much longer, very much more slender, smooth in great
part and about as long as the prothorax; antenne rufous, slightly (@) or
very greatly (co) ultra-median; prothorax as long as wide, the parallel
sides nearly straight, rounding and oblique in less than apical third; punc-
tures not very fine and separated by nearly twice their diameters; elytra
three-fifths longer than wide, parallel and straight at the sides, gradually
arcuate and subevenly rounded behind, barely visibly wider than the pro-
thorax and not quite twice as long; striz fine and rather evidently punctate,
the punctures of the single interstitial series infinitesimal; male abdomen
convex, minutely, sparsely punctate, having toward base a distinct narrow
impression along the median line. Length 1.45-1.7 mm.; width 0.45-0.6.
mm. Brazil (Chapada—forest). May and September. Six specimens.
angusta n. sp.
Form still narrower, smaller in size, black, with piceous legs; surface more convex,

314 MEMOIRS ON THE COLEOPTERA

the white vestiture nearly similar throughout; beak (9) very slender,
smooth distally, feebly arcuate, distinctly longer than in the female of
angusta and nearly a third longer than the prothorax; antennze submedial;
prothorax fully as long as wide, in outline nearly as in the preceding, the
sculpture almost similar, except that the punctures are a little smaller and
still sparser, separated by more than twice their diameters; elytra narrower,
three-fourths longer than wide, not evidently wider than the prothorax and
somewhat less than twice as long; strie still finer, the interstitial series
almost similar. Length 1.25-1.4 mm.; width 0.35-0.4 mm. Brazil (Cha-
pada—forest). May and August. Two specimens.......... subtilis n. sp.
Form broader, more oval, larger in size, the vestiture of slender white squamules
nearly similar; integuments black, shining, the legs short, slender and black;
beak (2) very slender, cylindric, not evidently tumid dorsally at base,
distinctly and evenly arcuate, black, finely punctate, smooth distally and
as long as the prothorax; antenne medial and nearly black; prothorax
slightly shorter than wide, the sides subevenly and moderately arcuate,
becoming parallel basally; punctures rather coarse but shallow, separated
by a little more than their diameters, the smooth median line narrow; elytra
very obtusely suboval, less than one-half longer than wide, evidently wider
than the prothorax and twice as long, the apex very obtusely rounded, the
sutural angle only very obsoletely reéntrant; humeral swelling subobsolete;
strie fine but deep, remotely punctate; intervals with single series of minute
but very evident, well separated punctures; abdomen finely, very sparsely
punctate. Length 1.7 mm.; width 0.7 mm. Brazil (Chapada). January.
One female specitnens: 2s. Soe eee ee). ssl 2b te Geek pistorella n. sp.

Species of this genus are, in all probability, among the smallest
of the Brazilian Barine; they all occur in flowers, so far as known.

Pseudotorcus n. gen.

In this genus, which is allied somewhat to Sibariops, but with
more rigidly cylindric body, the beak in the female, the only known
sex, is very slender, evenly cylindric and nearly smooth, separated
from the head by a fine and somewhat feeble sulcus and rather
strongly, evenly arcuate. Antenne medial, slender, the first funic-
ular joint as long as the next two, the outer joints scarcely dilated,
the club rather abrupt, oval, as long as the four preceding joints
and with its basal segment not quite half the mass. The prosternum
is flat, the transverse fine constriction at a long distance from the
apex, the coxz somewhat large and approximate, separated by
only about a fourth their width. The legs are of the usual struc-
ture, the prothorax cylindric, not tubulate at apex, the basal lobe
extremely short, broadly arcuate and almost obsolete, the scutellum
free, subquadrate and glabrous and the elytra finely striate. The
type is the following:

Pseudotorcus lustralis n. sp.—Rigidly parallel, convex and cylindric, strongly
shining and black, the legs dark rufous; squamules slender, white, very fine and
sparse, rather close and more distinct laterally on the pronotum, a little coarser,
somewhat conspicuous and in single or partially confused interstitial lines on the
elytra, narrow and sparse beneath, broader and dense at the sides of the hind

BRAZILIAN BARIN 315

body, especially on the met-episterna; beak (¢) slender, black, polished, finely
and sparsely punctate, closely so and squamulose at the extreme base; antennz
rufous, slender; prothorax somewhat longer than wide, the parallel sides straight,
rapidly rounding and oblique in less than apical third, the truncate apex four-
sevenths as wide as the base; punctures moderately large, rather shallow and
sparse, feebler and somewhat closer at the sides; elytra three-fourths longer than
wide, as wide as the prothorax and not quite twice as long, the parallel sides
straight; apex obtusely parabolic in about posterior third; strie rather fine;
intervals loosely and somewhat strongly punctate; abdomen not very coarsely
but strongly, somewhat closely punctate. Length 3.7 mm.; width 1.23 mm.
Brazil (Chapada). May. One specimen.

There can, I think, be scarcely any trouble in recognizing this
species if rediscovered; it is probably local, however, in a geographic
sense.

Torcus n. gen.

As defined from the male type, the body in this genus is parallel,
with variegated squamosity above, the large white scales dense
throughout beneath. The beak is somewhat thick, subcylindric,
strongly, closely punctate and squamose almost throughout, feebly
arcuate and separated from the head by only a feeble impression.
The antenne are slightly ultra-median, rather short, the scrobes
feebly oblique, the first funicular joint as long as the next two,
which are not elongate, the outer joints gradually wider and com-
pact, the club notably small, gradual, oval, about as long as the
three preceding joints, with its basal segment much less than half
the mass. The prosternum is flat, the fine transverse constriction
much more apical than in the preceding and the coxz are separated
by about half their width. The legs are normal, except that the
claw-joint is more slender, though arcuate, the claws rather small,
the prothorax not tubulate at apex, with the basal lobe short and
broadly rounded, the scutellum free, quadrate, rough and squamu-
lose and the elytral stria somewhat fine. The species are as
follows:

Interstices between the punctures above and beneath with extremely minute,
deep and very close but clearly defined punctules, exactly as in the genus
Camerones; scales throughout large, close-set, very broad and decumbent.
Sabsem pd mcumtmispees se ole ecole cis crere cla east d oe ye sels otalle von, govt ee He eebane 2

Interstices smooth or feebly and simply micro-reticulate; scales not covering
the entire surface and very slender, sparse and rather inconspicuous. [Sub-
PEM ROLES OM tetra f sea gets force oe eh Malte laG cinielevee lees otc ois aimee 2

2—Body parallel, black throughout, the integuments opaculate where accidentally
exposed, covered densely above and beneath with large scales, blackish-
brown above, but white in an oblong latero-basal and looser large antero-
lateral pronotal area, also large and white’at the base of the elytra, with a
posterior irregular ramus on the suture and at the sides in basal third, also
in a broad even fascia just behind the middle, interrupted at the suture, and
also loose at apex, dense and white almost throughout beneath; beak (0)
thick, feebly arcuate and three-fourths as long as the prothorax, which is

316 MEMOIRS ON THE COLEOPTERA

not quite as long as wide, the parallel sides evenly and feebly arcuate, rapidly
rounding and oblique in apical fourth, the truncate apex fully half as wide
as the base; punctures deep and very dense, largely concealed by the dense
scales; elytra three-fifths longer than wide, about as wide as the prothorax
and nearly four-fifths longer, the parallel sides straight behind the feebly
tumid humeri, rapidly circularly rounded and obtuse at apex; stric not
very fine, deep, the densely punctate flat intervals alternating greatly in
width; abdomen densely squamose, not definitely modified sexually, the
prosternum unarmed as usual. Length 4.4 mm.; width 1.7 mm. Brazil
(Chapada). November. One specimen.................. fasciatus n. sp.
Body almost similar in all respects to the preceding, except, as represented by
the female, it is very much smaller in size, with the loose pale pronotal scales
pervading most of the surface, besides the oblong dense latero-basal spots;
elytra with the same disposition of the dense white scales, except that the
submedian fascia is narrower and less evenly parallel, being zigzag in form
throughout; beak ( @) differing completely from that of the preceding male
type, being very slender, evenly cylindric, nearly smooth except at base,
strongly, evenly arcuate and not quite as long as the prothorax, the antenne
just visibly beyond the middle; prothorax as in the preceding? scutellum a
little smaller; elytra also almost exactly as in the preceding, except that
the intervals are equal in width among themselves. Length 2.8 mm.;
width 1.2 mm. Brazil (Chapada). November. A single female example.
minor n. sp.

3—Parallel, moderately convex, rather shining, deep black throughout; squam-
ules above whitish, very fine, rather sparse and even on the pronotum, but
wanting in a large transverse area behind the middle; on the elytra dense
and coarse along the medial part of all the intervals near the base, finer and
loosely aggregated in a broad transverse medial fascia, which is obsolescent
toward the sides, and also with a few isolated small scales near the apex;
squamules beneath very small, within the punctures, dense and conspicuous
on the met-episterna, almost wanting on the shining abdomen, closer on the
rather densely punctate fifth segment; beak in the type somewhat thick,
finely, sparsely punctate, more closely and strongly toward base, somewhat
arcuate and only three-fifths as long as the prothorax; antenne blackish
and near apical third; prothorax nearly as long as wide, the parallel sides
evenly and moderately arcuate, rapidly rounding and sinuously oblique in
about apical fourth, the truncate apex much more than half as wide as the
base; punctures moderate, separated by a little more than their diameters,
finer and sparser in the large vacant subbasal area; scutellum small, ob-
triangular, smooth; elytra three-fifths longer than wide, parallel, with
straight sides, rapidly very obtuse at apex and with feebly tumid humeri,
barely visibly wider than the prothorax and not quite twice as long, the striz
fine, minutely punctate; interstitial punctures sparse and minute, somewhat
confused. Length 3.5 mm.; width 1.35 mm. Brazil (Santarem). One
SPO CUMS Mae... via eles atl 8b eR co op nce subdenudatus n. sp.

The last species I have separated subgenerically, but it is more
likely to prove generically distinct; the type is probably a male,
although there are no abdominal modifications.

Paratorcus n. gen.

In this genus the body is parallel, more depressed than in the
preceding, shining and irregularly and only partially clothed. The

BRAZILIAN BARIN ar7

beak in the female type is very slender, nearly smooth, cylindric
and separated from the head by a feeble impression. Antenne
near basal third, moderate in length, the first funicular joint about
as long as the next three, the club stout, broadly oval, abrupt and
as long as the five preceding joints. The prosternum is nearly flat
and separates the coxe by rather evidently more than their own
width. The legs are of normal structure, but are unusually slender,
the prothorax briefly but abruptly tubulate at apex, the base finely
beaded, with the lobe very short, gradual and broadly arcuate, the
scutellum free, flat and quadrate but wider than long and glabrous,
and the elytra with narrow deep groove-like striae, which are
not definitely punctate. The type is as follows:

Paratorcus quadrifer n. sp.—Parallel, slightly depressed, shining, brownish-
testaceous in color throughout; squamules above slender and whitish, wanting
on the pronotum, except abruptly in lateral fifth or sixth, where they are fine,
even and sparse; on the elytra they are coarser, closely aggregated along the
intervals basally, especially internally, also close on intervals 2-4 from just
behind the middle posteriorly, attaining the apex on the second and third, also
moderately close on the four or five outer intervals throughout, thus leaving a
large quadrate ante-median area wholly glabrous; beneath, they are fine and
sparse, but dense on the met-episterna; beak (@) very slender, nearly smooth,
rather strongly arcuate and longer than the head and prothorax, the latter not
quite as long as wide, the sides parallel and broadly arcuate, rather more distinctly
so beyond than behind the middle, the tubulate apex distinctly more than half
as wide as the base; punctures sparse and very minute, stronger and closer at
the sides: elytra three-fifths longer than wide, exactly equal in width to the
prothorax and three-fourths longer, the humeri obsolete; sides parallel and
straight, gradually arcuate and converging in posterior half to the obtusely
rounded apex; striz fine; intervals broad, smooth in the glabrous areas; ab-
domen convex, finely, sparsely punctulate. Length 2.8 mm.; width 1.0 mm.
Brazil (Santarem). A single specimen.

The chief generic features are the very slender and rather arcuate
beak, tubulate prothorax, somewhat depressed surface and widely
separated: anterior coxe; it is probable that the species lives in
some rather confined situation in plants.

Iops n. gen.

In this rather remarkable genus the body is very slender, with
slightly arcuate sides and convex and nearly glabrous shining
surface. The beak is short and somewhat stout, very feebly
arcuate and nearly smooth, separated from the convex head by a
feeble impression, the antenne submedial and slender, glabrous, the
first funicular joint swollen, pedunculate and as long as the next
four joints, the other joints all subquadrate, not at all increasing
in width, the club very narrowly oval, fully as long as the four
preceding joints, partially glabrous and with its basal segment one-

318 MEMOIRS ON THE COLEOPTERA

half the mass. The prosternum is abruptly canalate, glabrous, the
canal extending between the coxe—separated by nearly their own
width—and apparently serves to partially receive the beak, when
closely retracted. The legs are normal, the narrow femora feebly
bent distally and the tibie straight, but the claw-joint of the tarsi
is unusually slender, the claws very small, slender and apparently
connate. The elongate prothorax is not in the least tubulate at
apex, the basal margin strongly beaded, and broadly feebly bi-
sinuate, the scutellum free, rather wider than long, smooth, flat
and very feebly obtrapezoidal and the elytra have deep and moder-
ate, punctulate striz. There are two species at hand as follows:

Body very elongate and convex, suboval, black and polished, the legs deep black;
surface glabrous above, the strong sternal punctures each with a slender
whitish squamule, close on the met-episterna, the abdomen glabrous, ex-
cepting the last segment; beak (co) smooth, punctate and squamulose at
base, very feebly arcuate and not three-fourths as long as the prothorax,
which is fully a fifth longer than wide, strongly, subcylindrically convex,
longitudinally a little more convex basally, as seen in lateral profile; sides
feebly converging and scarcely arcuate from base to apex, the latter arcuato-
truncate and three-fourths as wide as the base; punctures very fine and
remote; elytra two and a fourth times as long as wide, very elongate-suboval,
as wide as the prothorax and very nearly twice as long, the humeri scarcely
evident; striz fine but deep, gradually rather coarse and more punctate
basally, the intervals smooth, wholly impunctate; male abdomen finely,
sparsely punctate basally, then smooth to the fifth segment, which has a
large median impression, which is clothed with close fine erect fuscous
pubescence. Length 3.3 mm.; widtho.95 mm. Brazil (Chapada—forest).
November, \One.speciinen- seer eee. 1c eee eee ee sparsa n. sp.

Body smaller and still narrower, shining, dark testaceous in color, the still longer
and more slender legs paler, rufous; surface glabrous, with a very few small
sternal squamules, the met-episterna not squamulose; head missing in the
type; prothorax much shorter than in the preceding, only slightly longer
than wide, otherwise nearly similar, except that the punctures are com-
paratively coarse and separated only from two to three times their diameters;
scutellum a little smaller; elytra very elongate-oval, not quite two and one-
half times as long as wide, evidently a little wider than the prothorax and
two and one-half times as long; strie nearly similar but more strongly
punctured, especially on the flanks, relatively not so much coarser toward
base; intervals nearly similar but much narrower; abdomen in the type
smooth and polished, but sparsely punctate basally, the fifth segment smooth
and unmodified. Length 2.7 mm.; width 0.8 mm. Brazil (Chapada)
Niaxcht "One-exaniple: te: 2s. Seep teed ne eae inzqualis n. sp.

The unmodified fifth ventral in the type of ine@qualis seems to
indicate the female; this segment is only a little longer than the
fourth. In the male type of sparsa, however, the distinctly modified
fifth segment is almost as long as the two preceding, but there are
no basal abdominal sexual characters or any notable modification
of the prosternum.

BRAZILIAN BARINZ 319

Aniops n. gen.

The body is here small, narrowly suboval, strongly convex,
sparsely squamulose and very coarsely and closely punctato-rugose.
The beak is very short and thick, at least in the male, densely and
strongly sculptured and not separated by a distinct impression.
Antenne very short, medial, the scrobes deep and very oblique, the
funicle rather slender, the club stout, oval, abrupt, only sparsely
pubescent and with its first segment very large, about three-fourths
the mass. The coxe are small, the anterior larger and narrowly
separated. The legs are short but slender, nearly normal, the tarsi
unusually narrow, with feebly dilated third joint and moderate
connate claws. The prothorax is not tubulate at apex and is
broadly rounded medially at base, the scutellum small, rough and
emarginate at tip and the elytra deeply and coarsely sulcate, with
narrow and sharply convex intervals. The type may be described
as follows:

Aniops sculpturata n. sp.—Elongate-suboval, very convex, dull and coarsely,
very conspicuously sculptured, black, the legs rufo-piceous, the elytra pale
rufous; squamules whitish, very slender and sparse on the pronotum, shorter
and thicker and close-set in single lines along the summit of the interstrial
ridges, which are alternately well marked and more feebly developed, the under
surface with small and slender sparse squamules, not closer on the met-episterna;
beak thick, dull, densely sculptured, feebly arcuate and three-fourths as long as
the prothorax, which is not quite as long as wide, the subparallel sides broadly
arcuate, a little more oblique at the truncate apex, which is fully three-fourths as
wide as the base; punctures very coarse, deep and dense; elytra three-fourths
longer than wide, the sides parallel and straight for three-fifths, then rounding
and oblique to the narrow apex, with individually rounded apices, a fourth wider
than the prothorax and between two and three times as long, the humeri but
feebly swollen, the sides thence rapidly oblique to the base; sulci very coarse
and deep, punctate; intervals very convex, costiform and but little wider than
the sulci, the surface rather dull; abdomen with small and well spaced punctures,
rather dull and having, medio-basally, a deep impression, extending almost to
the apex of the second segment. Length 2.25 mm.; width 0.8 mm. Brazil
(Chapada—forest). August. A single male specimen.

This is among the more isolated types in the Limnobarini.
Completely covered pygidium, non-tubulate prothorax, approxi-
mate coxe, connate claws and many other features prevent any
close comparison between Aniops and the nearctic Desmoglyptus.

Psiona n. gen.

A genus, of wide distribution in Brazil, is necessary for a moderate
number of elongate-suboval, more or less opaque, glabrous and
densely punctate small species, with short and opaque, barely
arcuate beak, not separated from the head by an obvious impres-
sion. The antennze are beyond the middle, short but not very

320 MEMOIRS ON THE COLEOPTERA

thick, the first funicular joint stout, nearly as long as the next
three, the outer joints gradually a little wider and compact, the
club short, obtuse, broadly oval, rather abrupt and but little longer
than the preceding three joints as a rule. The prosternum is
broadly concave, squamose, and separates the tarsi by about a
third their width. The legs, on the whole, are of the usual structure,
but are here opaque and with the femora much longer than the
tibiae and having a few close-set denticles medially beneath, the
tarsi normal, but with small and very slender, almost contiguous
claws. The prothorax is feebly tubulate at apex and with the
basal lobe small, gradual and broadly rounded, the scutellum sub-
quadrate, tumid, rough and more or less squamulose, the elytra
with strongly punctured striz and finely carinulate intervals. The
dense opacity of the integuments is caused by an almost undefinable
minute subreticulate sculpture, the minute discrete ground punc-
tures of Torcus not evident. The three species now at hand are the
following:

Elytra strongly narrowed and with oblique and broadly arcuate sides from the
humeri to apex, their surface strongly alutaceous. Body more oval, strongly
convex, dark red-brown, the elytra somewhat clearer, glabrous above, having
fine slender sparse and scarcely visible pale squamules throughout beneath;
beak (”) densely punctate and opaque, feebly arcuate, not very slender
and as long as the prothorax, the latter but slightly wider than long, the
feebly converging sides slightly and subevenly arcuate to the shallow apical
constriction, the truncate apex half as wide as the base; punctures strong,
deep, extremely dense and longitudinally subconfluent, with a very fine but
sharply marked, even and subtumid smooth median line, not attaining the
apex; elytra two-thirds longer than wide, a fourth wider than the prothorax
and between two and three times as long; apex narrow, the humeri rather
broadly subtumid; striz not coarse but very distinctly punctate, the inter-
vals distinctly carinate along the median line; male abdomen finely, feebly
punctate, with a rather large, deep medio-basal concavity and impressed
medial part of the fifth segment. Length 2.6 mm.; width 1.1 mm. Brazil
(Para). A single specimen, communicated by Desbrochers des Loges.

carinulosa n. sp.

Elytra more oblong, parallel basally, arcuately oblique to a rather more obtuse
tip from only behind the middle, their surface more densely opaque... . . 2
2—Form narrower and more oblong suboval, densely opaque and devoid of lustre
above, piceous-brown in color, the fine sternal squamules more distinct, but
finer on the met-episterna than on the metasternum; beak in both sexes
opaque and much shorter than the prothorax, only feebly arcuate, rather
thick (<"), obviously thinner (¢), the antennz well beyond the middle in
both sexes; prothorax slightly wider than long, the sides parallel and straight,
broadly rounding beyond the middle, sinuate just behind the truncate apex,
which is three-fifths to two-thirds as wide as the base and diaphanously
rufescent, the punctures strong, dense and longitudinally subconfluent, the
median line of the preceding species not apparent; elytra two-thirds longer
than wide, a fourth wider than the prothorax and much more than twice as
long, the humeri not distinctly tumid, oblique to the base; striz coarser

BRAZILIAN BARINA 321

than in the preceding and more coarsely punctate, the intervals narrower,
with the fine median carina less developed; abdomen alutaceous, subim-
punctate, strongly and closely punctate and squamulose at apex, which is not
impressed in the male, which sex has a large medio-basal impression. Length
2.65-2.8 mm.; width 1.0-1.15 mm. Brazil (Chapada). March, October
and November. Four specimens.........--+--+++s++esre0ees densa n. sp.

Form and sculpture nearly similar but smaller and narrower, paler red-brown,
the vestiture similar; beak (9) longer, about as long as the prothorax, the
antenne rather less ultra-median and with somewhat longer scape; prothorax
similar throughout, but almost as long as wide and with the parallel sides
extending a little farther beyond the middle; elytra similar, but with the
striz slightly less coarse and more finely punctured, the interstitial carinules
more obvious; abdomen alutaceous, punctured at tip. Length 2.45 mm.;
width 0.85 mm. Brazil (Chapada—forest). August. One specimen.

opaca n. sp.

There is no other genus with which Psiona can be compared at
all closely; the division made above defines two almost subgeneric
groups.

Tribe SONNETIINI

This tribe is founded upon a single genus, combining in a remark-
able way the anatomical characters of the Centrinini and Madarini,
and yet so different from either that it seems impossible to avoid
the tribal isolation here proposed for it. The sterna, being discon-
nected and with rather narrowly separated coxe, betray an affinity
with the former tribe and the long, greatly exposed and: gently
sloping pygidium, very similar to that of Conoproctus, when con-
sidered with the sternal structure, presents a singularly incongruous
combination. The only genus is the following:

Sonnetius n. gen.

The body in this genus is very elongate-suboval and feebly
convex, with nearly glabrous shining integuments. The beak is
very long, slender and feebly arcuate in the female, but much
shorter in the male, not separated from the head by an impression
and with porrect, internally straight, basally inflated and obliquely
acuminate mandibles, coming together along the inner edge as in
Centrinaspis. The antenne are medial (co), or far behind the |
middle (9), rather short, the scrobes feebly oblique, the scape
moderate, elongate-clavate at tip and far from attaining the base,
the first funicular joint as long as the next three, the second as long
as the succeeding two, the rest short but increasing only slightly in
thickness, the club stout, with rather short glabrous basal segment,
the remainder forming a regular and almost straight-sided, sharply
pointed and densely pubescent cone, the sutures distinct. The
prosternum is unmodified or feebly concave, separating the cox by

T. L. Casey, Mem. Col. X, Oct. 1922.

322 MEMOIRS ON THE COLEOPTERA

about half their width, and is very short, medially impressed and
minutely bilobed behind them. The legs are moderate, with un-
armed femora, the anterior more inflated than the others, the tibize
straight, with very strong curved inner spur at apex, the tarsi rather
slender, with very moderately dilated third joint, the fourth very
long, much exceeding the entire basal part and with two notably
large diverging claws. The prothorax is moderately tubulate at
apex, the basal lobe very small and feeble, the scutellum flat, free,
as long as wide and obtrapezoidal and the elytra rather deeply but
moderately grooved. The greatly exposed pygidium is gently
sloping and is shorter and much more obtusely rounded behind in
the male than in the female. There are three species at hand
as follows:

Pronotum with a mixture of larger and finer sparse punctures, the larger bearing
long stiff erect sete. Body elongate-oval, very moderately convex, shining and
deep black throughout; beak (o) only as long as the prothorax, rather
thick, strongly and closely punctured, gradually tapering, thin and finely,
sparsely punctate distally, bristling with short and very coarse, fulvous sete
except apically, and very feebly arcuate; antenne piceous; prothorax fully
a fifth longer than wide, the sides broadly and distinctly arcuate from base
to tubulation, which is three-sevenths as wide as the base; punctures strong
and longitudinally subconfluent at the extreme sides, nearly all fine and
sparse medially; median smooth line distinct, except at base and apex;
elytra three-fifths longer than wide, with oblique and broadly arcuate sides
and individually rounded apices, a fourth or fifth wider than the prothorax
and two-thirds longer, the humeri feebly tumid; posterior tumidity very
moderate; grooves rather narrow, a little coarser and more punctate later-
ally; intervals with moderate distant punctures, bearing short sete, inter-
mingled with minute and confused punctures medially; pygidium convexly
sloping, wider than long, very broadly rounded at apex and strongly and
closely but discretely punctate; male abdomen smooth, the basal segment
rather strongly punctured and with a simple median impression. Length
6.0 mm.; width 2.35 mm. Brazil (Santarem). One specimen.

binarius n. sp.

Pronotum finely, sparsely and almost uniformly punctate, the punctures be-
coming in great part rather coarse and close and bearing very short, fine
efectssetze. atthe extreme) sides: 22.18) eee ee eee o-oo ayatenee roe eee 2

2—Elongate-oval, rather depressed, deep black and shining; beak (9) only a
little shorter than the body, feebly arcuate and very slender, slightly flattened,
polished and impunctate, becoming rather rapidly thick and with moderate
though deep, notably sparse punctures bearing very short sete, in rather
less than basal third; antennz piceous, at the end of the thickened part of
the beak, much longer than in the male of bimarius; prothorax nearly a
sixth longer than wide, subinflated basally, slightly widest before the base,
the sides broadly, subevenly arcuate and converging, the tubulation three-
sevenths as wide as the base; median smooth area as in the preceding; basal
lobe minute, short and truncate, somewhat as in binarius; elytra barely
more than one-half longer than wide, a fifth wider and four-sevenths longer
than the prothorax, similar in form and sculpture to the preceding; pygidium
long, triangular, with feebly arcuate sides and very gradually sloping surface,
almost as wide as long and moderately and discretely punttate, feebly tumid

BRAZILIAN BARINA 323

along the median line; abdomen smooth, minutely, remotely punctulate at
base. Length 8.4 mm.; width 3.15 mm. Brazil (Santarem). One speci-
Ti OTL pas ea ae ON RSET RPO TOR ORS OCA Oe coe ren conicicauda n. sp.
Elongate-oval, narrower than the preceding and almost similar in color and
sculpture; beak (2) somewhat longer than the body, as in the preceding,
except that the basal thickening is very gradual and has the punctures a
little smaller and sparser; antennze somewhat shorter, with thicker club,
piceo-rufous in color; prothorax narrower, about a fourth longer than wide,
not inflated posteriorly and widest at base, the sides more feebly arcuate,
the tubulation and sculpture subsimilar; minute basal lobe more gradually
formed and not truncate, but strongly rounded at tip; elytra much narrower
and more elongate, two-thirds longer than wide, a fifth wider and three-fifths
longer than the prothorax, the general outline and sculpture nearly similar;
pygidium more narrowly triangular, with rather more arcuate sides and with
the similarly distinct punctures very much sparser, the median line tumescent
only toward base; mes-epimera visible from above as in the two preceding
species; abdomen nearly as in conicicauda. Length 8.0 mm.; width 2.85
mm. Brazil (Amazon Valley). One specimen.......... longirostris n. sp.

The type of longirostris was received from Desbrochers des Loges
with the legend ‘‘n. gen. (Jekel) or Dactylocrepis Db., Amazons,
rare.” Dactylocrepis is of course a widely different genus, allied to
Cylindrocerus. There does not seem to be much doubt of the
specific distinctness of the types of binarius and conicicauda, though
represented by a single male and female respectively, and they are
from the same locality; marked difference in pronotal sculpture is,
so far as observable, never a purely sexual character. If there
should prove to be but a single species, however, the sexual differ-
ences in the beak in this genus would be far greater than in any
other known to me.

Tribe MADARINI

The chief distinguishing feature of this tribal group is the virtually
uninterrupted surfaces of the pro-, meso- and metasternum, and, in
typical genera, such as Madarus, this is a manifest reality, but there
are many cases in which there is merely an approximation to the
structure seen in Madarus. The anterior coxe are remotely sep-
arated as a rule, but in some genera, such as Rytonia, these coxe
become as close-set as in most of the Centrinini. The pygidium is
usually fully exposed behind the elytra and is more vertical in the
female, but in a group placed at the beginning of the table given
below, there is no more vestige of an exposed pygidium than in the
tribes before the Sonnettini, as arranged in the present work, and,
were it not for the uniform level of the sterna, they would of course
have to be considered Centrinids, to which they also bear a striking
external resemblance.

The Madarini constitute perhaps the most interesting of the
Barid tribes, because of their very diversified and remarkable
structural features, such as the long rostrum—or as I have termed

324 MEMOIRS ON THE COLEOPTERA

it ‘‘beak,” for the sake of brevity—and apical antenne of the male
and much shorter, more arcuate beak and very different antenne of
the female in Conoproctus—although there are also a number of
unrelated genera in the Barine, in which the male beak is distinctly
longer than that of the female, but not to so extreme a degree as
in Conoproctus; or, again, the posteriorly conical and prominent
prolongation of the prosternum in Piperis. Most of the genera
have the tarsal claws long, strong, free and widely divergent, but in
a small group, as defined below, they become straight and basally
connate. The variations of mandibular form, which have been
taxonomically useful in the preceding tribes, are only of noticeable
value here in the non-pygidiate section mentioned above. In those
genera having the pygidium exposed, the mandibles seem to be of
less systematic importance.

Only a few of the genera with exposed pygidium possess the male
prosternal spiniform processes so prevalent in the Centrinini, and
the presence of these processes in the first section, having concealed
pygidium, as defined below, is another evidence of consanguinity
between them and the true Centrinids. In the latter tribe it often
happens that there may be species with or without these spines
within the same genus, and the division made below based upon
this character might therefore appear to be inconsistent or equivocal,
but as a matter of fact, there is such uniform absence of the spines
throughout the pygidiate genera, that a division on this score is
amply warranted, especially as it brings the very few genera having
spines in closer proximity to certain of the non-pygidiate genera,
with which they seem to be related in general habitus.

Finally, it should be said that in the pygidiate Madarids the
canaliculation of the prosternum is a very rare character, when
contrasted with its prevalence in the preceding tribes, again indi-
cating the isolation of the Madarini as a tribal group of the Barine.

The numerous genera necessitated by the material at hand are
as follows:

Pygidium concealed bythe elytra in both sexes... ..).5.. oe). mec eee ee 2
Pygiditum exposed bebind the elytra in both sexes.,).... 5-9... etla sent oe 7
2—Mandibles prominent, more or less acuminate, closing along a straight line as
; in Centrinaspis. Beak moderate, subulate, thickened basally, the antenne
generally behind the middle, with short and broadly oval club, having a
very large basal segment; prosternum broad, flat, unarmed in the male, the
coxz separated by fully one-half more than their width; sculpture varying
from very coarse to fine, the elytra with series of erect sete; claws long, free

and diverging. [Type J. sculpticollis nov.]...... aie tentty . Notesia
Mandibles prominent and non-decussate, with their inner meds peereue but
denticulatevas mm Nicentruse san ee occ oer Hee eee 3
Mandibles bifid at tip, arcuate and decussate; claws free and divergent....... 4
3—Tarsal claws free and divergent; body small, clothed closely with slender stiff
setee, erect and bristling in part and especially on the elytra; beak rather

BRAZILIAN BARINA 325

short, feebly arcuate, the antennez submedial, rather short, with large and
gradually formed club, having a short basal segment; prosternum armed in

the male, separating the coxe by their own width. [Type JN. hystrix nov.].
Notesiaspis

Tarsal claws long, nearly straight and basally connate; body very small, oval,
convex, glabrous, the beak rather thick and moderately short; antenne
medial, more slender, with narrower and smaller club; prosternum flat,
separating the coxe by about their own width; elytra with coarsely, basally
punctate grooves; legs short, simple. [Type C. punctata nov.].. . .Cropelia
4—Body small or very moderate in size, oblong, rather depressed and glabrous,
but strongly and somewhat closely punctured, at least toward the sides;
beak more or less short and arcuate, usually not subulate; antennz sub-
medial, with well developed oval club, having very deep sutures and short,
more or less glabrous basal segment; prosternum broad and flat, briefly
armed in the male as a rule, the coxe remote, generally separated by about
Mowe yan, |[Myqxewlata irate hada so oases ovbooeoeomoede Tonesia
Body larger, rhombic-suboval, convex, glabrous and smooth; beak long... ....5
5—Thoracic lobe very short and feeble, the scutellum free, well developed and
obtrapezoidal; body impunctate above; beak very slender; antenne far
behind the middle, slender, with notably long first funicular joint, the seventh
much dilated, pubescent and almost forming part of the large and elongate-
oval club; prosternum large, feebly convex, smooth, the coxe separated by
twice their width; legs rather long and slender. [Type L. ebenina nov.]
Liotheantis

Thoracic lobe long, strongly rounded at tip, the scutellum very small, generally
less free, transverse; upper surface punctured at the sides; antennal club
small se pEOstenummrarimec inet ine vmialessiry.). ster s =e jetetsy detec ds) +) sy ekek-na) vey slate 6
:6—Beak very slender, smooth and cylindric; anterior coxz separated by twice
their width, the prosternal spines of the male short and slender; elytra with
very fine and feeble, though distinctly punctured striae. [Type 7. rhom-
DOCEE CRON GN PMT hes ts hs oo 5) Sueno akc esis aed NG Sop O-ROES susp dees syste lactase Theantis
Beak less slender, very coarsely, longitudinally sculptured; anterior cox sepa-
rated by barely more than their width; prosternal spines longer, thick at
base, gradually finely acuminate; body stouter, the elytra with abruptly
defined and scarcely punctured grooves, coarsely exarate posteriorly. [Type

WERT OTS HS 2 Oe Hee eae oe Ea err in Smee Pycnotheantis
7 PrOSte mimi mae elnath ernie © sparen Gieyo rst clare cena reuencvei ere telc yl eiterer ata otcyian= lave 8
Brostemumbenotanmecdiim tie smal es sits. ie eb) octave sips eit) > ede a che oletags: -Pesebenen es II

8—Body convex, with uneven squamules, sometimes very sparse above, often
more condensed at the base of the elytra or along the suture; beak slender,
not separated by a distinct impression, generally longer in the male....... 9
Body broader, depressed, subparallel and glabrous......................-.- 10
9—Body small, oval, more or less coarsely sculptured; antenna somewhat post-
median, slender, the first funicular joint about as long as the next three, the
club large, elongate-oval, subequally divided by the distinct sutures; pro-
sternum flat, the straight slender spines of the male not separated by a cavity,
the coxee separated by somewhat more than their own width; legs moderate,
the femora mutic, the tarsi slender; elytra grooved. [Type Centrinus
montanus Schauf.] Limnobaroides Chmp..............+-- Parisoschcenus
Body very small, inflated anteriorly, garrower and subcuneate-oval, finely
sculptured; antenne submedial, slender, the first funicular joint as long as
the next three, the club smaller, oval, with very long basal segment; pro-
sternum flat, the straight male processes not separated by a cavity, the coxe

326 MEMOIRS ON THE COLEOPTERA

very remote; legs short, the anterior somewhat more developed in the male;
elytra more shallowly grooved. [Type G. roticollis nov.]....... Groatus
10—Beak in the male moderate in length and thickness, separated by an evident
though obtuse reéntrant angle, the antenne submedial, rather long and
thick, the first funicular joint moderately long, the club gradual, rhombic-
oval, with large basal segment; prosternum broad, flat, the coxe very
remote, the male processes short, subapical, separated by only a feeble
concavity; legs rather short, normal in structure, the anterior not longer in

the male. [Type P..cblongaims mov... 2), : 2 ate gone eee ee Palistes
11—Tarsal claws arcuate, free and divergent, always long and distinct.......12
Tarsal claws straight and connate at base, or extremely small though free.....32

12—Body parallel in form and moderately convex, rather small in size; anterior
femora inflated and strongly, diversely dentate to mutic beneath; mandibles
deeply bifid, arcuate and more or less decussate...............2.-0000- 13
Body clonvate-ovalion postenionhy autenuate.. 4p ean eerie 14
13—Beak moderate in length, thick (oo), rather slender (9), separated by a
distinct narrow sulcus; antenne submedian (@), or far beyond the middle
(@), with gradually thicker funicular joints, the club large, elongate-oval,
subequally divided by the deep sutures; prosternum flat, separating the
coxe by much more than their width; legs moderate, the anterior with more
inflated femora in both sexes; sculpture fine, the elytra grooved; surface
glabrous and shining; scutellum transverse, well developed, rounded or
angulate behind; pygidium small in both sexes. [Type Z. femoralis nov.]
Zalinus

Beak very short, not separated by an impression; antenne medial, notably short,
the oval club subequally trisected by the distinct sutures; prosternum flat,

the coxe rather widely separated; legs very short, the tarsi somewhat
slender, the anterior femora clavate; elytra coarsely grooved; surface
glabrous, shining; body very small, more evenly cylindric, the scutellum
very small, not transverse, more widely free and obtrapezoidal; pygidium

larcem a [hyper yams NOvValys soccer ae os Acer Anazalinus
14—Prosternum canaliculate; femora unarmed........:.....-.-..-------- 15
Prostermum not, canalicnlatets: css: o.. Jac tee or aereriore chante aceite reine ete 20

15—Prosternal canal very broad and extremely shallow, its sides slightly tumid.
‘Body depressed, elongate-oval, with sparse and erect sete, grooved elytra
and small, widely free obtrapezoidal scutellum; beak nearly straight, not
separated from the front, with straight mandibles and submedial slender
antenne, the club small, abrupt and nearly globular; anterior coxe sepa-
rated by somewhat more than their width; femora all strongly inflated, the
tarsi long and slender. [Type M. hispidula nov.].............. Myelantia
Prosternal canal narrow andisharply defined ie. 2! hc eee ee 16
16—Prosternum strongly tumid medially before the coxa. Body larger in size,
elongate-oval, convex, shining and glabrous, excepting a subscutellar cluster
of scales; beak thick, compressed, strongly arcuate; antenne submedial,
with thick and oval, rather gradual club; anterior coxe separated by but
little more than their width; legs moderate, the femora obtusely dentate
beneath, the tarsi not slender; elytra finely grooved; scutellum well devel-
oped, free, truncate at tip and wider than long. [Type H. tumidipectus

NOVA SIMSKICOS Oi hep PS ha Nace ee ee es Seite uch le tee otneaiee: Hulpes
Prosternum not tumid before the cox; scutellum not or but slightly free, arcuate
behind; femora unarmed; integumeents wholly glabrous................ 17

17—Pronotum and entire upper surface impunctate, smooth and polished; form
very elongate-oval; scutellum distinct; elytral surface not or but feebly
UNG wlateds's Hey SLVR. Me ask CREAR Ste idee tee en rent 18

BRAZILIAN BARINE 327,

Pronotum finely, closely punctate; body much more abbreviated, the elytral
surface strongly undulated; scutellum minute....:.....050..5.5 60.04. . 19
18—Beak thick and compressed basally, apparently so in both sexes; body
larger, the humeri distinctly tumid; antenne submedial, rather long, the
first funicular joint elongate, the club moderate; anterior coxz separated by
somewhat more than their width, the canal not continued between them;
legs not abnormal; pygidium tumid or carinate. [Type M. atrolucens nov.]
Madaropsides

Beak slender, evenly cylindric; antenne medial, with well developed elongate-
“oval club; anterior cox separated by slightly less than their own width,
the canal continued between them; legs normal, though with short slender
tibiz and slender tarsi; humeral swelling barely traceable; body cylindric-
oval, much smaller in size, the elytra almost sculptureless; pygidium smaller

and more abbreviated, flat. [Type S. perpolitus nov.]......... Stenohulpes
19—Body rhombic-suboval, with short prothorax and relatively long undulated
elytra, the lustre metallic; beak somewhat thick, arcuate, nearly similar in

the sexes; antenne submedial, slender, with rather long and abrupt, oval
club; anterior coxe separated by rather more than their own width; legs
and tarsi more slender; pygidium small, transverse and vertical; elytra
stronelysenoaveds (Type .S.\ ddulata novel wre oy. Nee 2764 ohn ee bean ,Sirabia
20—Anterior coxe separated by distinctly less than their own width. Body
small, oval, convex and subglabrous, the femora mutic; tarsi short and:
slender; beak rather thick, differing but little in the sexes, compressed,
feebly separated from the head and unconstricted, the antenne greatly
ultra-median, the club oval, rather gradual, subequally divided by the
sutures and as long as the preceding six joints; elytra grooved; pygidium
small ean Mivemhascuiellatas Ove |t selsisieier citi aisle ei adeoe! <j -loks Lishokes Rytonia
Anterior coxz separated by somewhat more than half their width, the even
prosternum similarly transversely constricted near the apex. Body nearly
similar in almost every feature, except that the beak is separated by a deep
sulcus and is strongly constricted near basal third or fourth in both sexes;
pygidium more convex. [Type A. squamiventris Chmp.].. Anisorrhamphus
Anterior cox separated by only a third or fourth of their width; prosternum
constricted apically. Body rhombic-oval, convex, distinctly but not densely
squamose beneath; thoracic lobe very small, the scutellum free, the elytra
grooved and the pygidium very small; beak slender, arcuate, with a high
and prominent cariniform crest at base, apparently in both sexes; femora
undilated, mutic, the tarsi narrow. [Type T. electa nov.]..... Tropidobaris
Anterior cox very approximate, separated by less than a fourth of their width,
the prosternum not distinctly constricted. Body narrowly rhombiform,
densely squamose beneath, partially squamose and roughly sculptured above;
thoracic basal lobe very small, subobsolete, the scutellum oblong, free;
elytra very coarsely, deeply grooved; pygidium small, vertical or feebly
oblique; beak slender, only feebly arcuate, not crested; antennez post-
medial; femora narrow, mutic; tarsi very slender. [Type A. conspersa nov.]
Antesis

Anterior coxe separated by a third their width; prosternum feebly foveate at
apex, but not distinctly constricted. Body broad and oblong-oval, very
densely and evenly squamose throughout above and beneath; thoracic lobe
small but distinct, not abrupt, the scutellum small, free, quadrate; elytra
deeply striate, the pygidium moderate, vertical; beak rather short, arcuate,

the antenne medial, with very small club as in Antesis; legs stouter, the
femora mutic, scarcely inflated. [Type Z. ochreotecta nov.]....... Zyzzyva

328 “MEMOIRS ON THE COLEOPTERA

Anterior coxe separated by not quite half their width, the prosternum constricted
at apex. Body very elongate and narrow, convex, somewhat as in Lobo-
derinus, but very densely clothed throughout with large ochreous scales;
thoracic lobe obsolete, the scutellum very free, narrow and oblong; pygidium
moderate and rounded, oblique; beak rather short, thick, arcuate, the
antenne greatly ultra-median in the male, as in that genus, slender, with

very moderate simple oval club. [Type P. tectus nov.]..........Polpones
Anterior coxe more or less remotely separated, as usual in the tribe......... 21
21—Femora unarmed(,)s4.<)A5 atacielos Matoiea = Moles DER COI oe eee eee 22

Femora denticulate or minutely spiculate beneath, the spicule sometimes confined
to the anterior femora or altogether obsolete; scutellum flat, in close contact
with the elytra and thoracic lobe and generally transversely lunate.......28

22—Elytra not or only very obsoletely striate, except at apex; scutellum as in
the preceding section, flat, closely fitted, more or less lunate and at base
following the curyverot the theracie labe.... 2.\2<'. cache. oe Wee eee 23

Elytra deeply and abruptly grooved throughout...................+--..-+-- 26

23—Beak thick, differing but little in the sexes, except in Loboderinus, the an-
tenne moderately to greatly ultra-median, the club moderate, oval and
subequallivatrisected bythe Suturesssmen rere ei rerieiete eee eee 24

Beak very much longer, straighter and less attenuate in the male than in the
female; legs notably longer than in the preceding section, the body also
more elongate, black and shining, the elytra each with two large red spots..25

24—Antennal funicle moderate, slender, the club peculiarly modified in the male;
body smaller, narrower, cylindric-oval, with broad and very gradual thoracic
lobe, triangular close-set scutellum, grooved elytra and small, somewhat
oblique pygidium; beak thick, with greatly ultra-median antenne (<), or
more slender, with submedian antenne (@ ); under surface densely squamose,
the anterior coxe separated by a little more than their width; femora not
inflated, mutic. [Type Baridius collaris Boh.].............. Loboderinus

Antennal funicle moderate (9), thick, shorter, compact and bristling (*), the
club moderate, suboval in both sexes; body less narrowly elongate-oval,
densely squamose beneath, glabrous, smooth and shining above, the thoracic
lobe abrupt, prominent and rounded, the scutellum transversely angulato-
lunate, close-set; elytra with very fine or subobsolete strie; pygidium
moderate, vertical, rather convex; anterior coxe separated by fully one-
half more than their width; femora rather slender, mutic, the tarsi narrow.
[Type L..curiveniris Boh.]. . Epudobaspis Chevan . ie i oss sneer Loboderes

Antennal funicle of the usual length, the outer joints not much wider and not
closely joined; body larger, black and shining, the elytra always with a
large rounded red spot at the humeri. [Type M. biplagiatus Boh.]. Madarus

Antennal funicle short, the joints gradually broader and more transverse distally,
the club longer than the preceding six joints; elytra never maculate with
red, the body smaller than in Madarus, very smooth, deep black and with
vernicate lustre. [Type E. impressirostris nov.]..............Eudamarus

25—Male with the beak bent at the point of antennal insertion, which is between
two-thirds and three-fourths the length from the base, the first two funicular
joints together much less than half the length of the shaft; lower margin of
the beak more or less conspicuously fringed and sometimes crenulate.
[Type Calandra quadripustulata Fabr.]..............0.- Pseudomadarus

Male with the beak even, not bent and not serrate or fringed beneath, the an-
tenne virtually apical, the scape and funicle extremely long and slender, the
first two funicular joints together constituting much more than half the
length of the shaft, the club shorter and less cylindric than in the preceding
Tenis ey penGnguadrepl deca ss led ce seen enn eee Conoproctus

BRAZILIAN BARINA 329

26—Antennal club relatively large, subcylindric, much exceeding all the preceding
joints and as long as the scape; body much smaller, glabrous above, the
entire under surface clothed densely with large yellowish scales; beak
moderate, the antenne submedial; scutellum as in the preceding section;
pygidium small, simple, almost vertical. [Type S. infratectum nov. |]
Stripenia
Antennal funicle much longer and more slender, the club smaller; body not
densely squamose beneath; scutellum smaller, freer, obtriangular and
entering an apical emargination of the thoracic lobe............-+.+.-- 27)
27—First two funicular joints relatively long and equal, each as long as 3-5
combined, the club very small; beak in the type very long and slightly
flattened, extremely thin when viewed in profile and evenly arcuate; pygid-
ium feebly sloping, carinulate medially. [Type T. filirostris nov.]. . Tripusus
First two funicular joints very unequal, the first about as long as the next three;
beak in both sexes rather short, arcuate, moderately slender, the antenne
medial; pygidium subvertical and convex (¢ ), or feebly sloping and carin-
ulate (o'). [Type T. punctulata nov.]........------. esse eens Tripusidia
First two funicular joints long but unequal, the club rather small, oval, the beak
long, slender and straight or very nearly so; antenne post-medial, especially
in the female; pygidium small, feebly oblique and coarsely punctate; body
oval, herissate with erect dark sete, the pronotal punctures mixed in size
as in Myelantia. [Type P. hispidula nov.]............++++5: Pycnorthoris
First funicular joint much longer than the second; antenne medial, rather short,
the funicular joints nearly as in Tripusidia, the club very moderate, broadly
oval and abrupt; beak moderately long and arcuate, strongly punctured;
scutellum closely fitted, flat and triangular, the elytra grooved; pygidium
small and vertical or nearly so; body more evenly oval, convex, subglabrous
or with very small slender and sparse decumbent squamules. [Type Baridius
CEARUSECE AAG Rah ae ides om eke) gh wie nibs oe gal ete calpiels Onychobaris
28—Prosternum transversely, lamellarly prominent between the coxe; body
small, oval, convex, strongly and rather closely punctate, the elytra grooved,
glabrous, with a dense patch of scales at the base of the second and third
intervals; beak moderate; antenne slightly post-medial, with broadly oval,
and well developed club; legs moderate, slender, the anterior somewhat
longer; pygidium small, vertical. [Type M. collaris nov.|.%. Micromadarus
Prosternum not prominent between the coxe...........5-2-0se sere eens 29
29—Anterior coxe large, separated by their own width, nearly as in the preceding;
body small, narrowly cuneiform, smooth, partially squamulose, the scutellum
small, arcuately triangular; elytra finely grooved; pygidium small, vertical;
legs moderate, the femoral denticle distinct; beak moderate, the antennz
slightly post-medial, with stout oval club. [Type H. cunetformis nov.]
Hulpesellus
Anterior cox nearly similar, separated by their own width; body small, oval
and glabrous; beak feebly arcuate, the mandibles bifid and decussate;
antenne median, the first funicular joint somewhat elongate, the club large
oval, sometimes almost as long as the entire stem; prosternum flat; femora
not inflated, mutic, the tarsi narrow; basal thoracic lobe abrupt, strongly
rounded, the scutellum close and transversely lunate; elytra grooved, the
pygidium moderate, vertical. [Type P. lobata nov.]........-- Parasolaria
Anterior coxz a little smaller, separated by somewhat more than their width;
body more broadly oval, glabrous or nearly so; beak thinner, feebly arcuate,
rather slender, the mandibles similar; antennz post-medial, the first funic-
ular joint longer, the stem longer, the club much smaller, cylindric-oval,
about as long as the four preceding joints; legs a little longer, the femora

330 MEMOIRS ON THE COLEOPTERA

distinctly denticulate beneath, the tarsi narrow; thoracic lobe gradual,
broadly rounded, the scutellum small, equilatero-triangular; elytra grooved,
the pygidium smaller, vertical. [Type Baridius curtulus Boh.]..... Solaria
Anterior coxe remotely separated... .ljoaseeei- “omer iets ee 30
30—Body abbreviated, more or less small in size, the cuneiform elytra undulated;
surface shining, glabrous or nearly so; beak arcuate, the antenne generally
somewhat post-median, with well developed and elongate-oval club; pygid-
ium small, nearly vertical. [Type Rhynchenus undulatus Say] Madarellus
Body elongate, more or less cuneiform and generally larger in size, the pronotum
in profile generally somewhat ascending with reference to the plane of the
elytra; pygidium*rather small, nearly vertical, 2. 2 315 cee) sone 31
31—Body with close and confusedly variegated vestiture; beak very long;
femora slightly inflated, the inferior denticle distinct; alternate strial inter-
vals more convex. [Type P. complexus nov.]..........6..45 Paramadarus
Body glabrous, or in part with evenly scattered setiform squamules, the third
strial interval with a line of denser scales basally and only rarely obsolete;
femora slender or not inflated, the denticle beneath very minute and some-
times wholly obsolete; strial intervals uniform; striz feeble and punctate
to finely grooved; body narrower. [Type Madarus vorticosus Boh.]

Linomadarus

32—Claws connate at base; beak moderate, more or less slender; sides of the
prothorax rounded im ‘section. a... Sxeintie ls Series foe eee era 33
Claws very minute but free; beak extremely short, cuneate or conical; sides of
the prothorax sharply defined’ /..<2.2%2. 4 + ae aa es eee hea eae 38
23—Scuitellumuclosely, fitted sere) ci-ie oirtie onset eres eee eter iene 34
Seurtiel tania frees sere vt eh ees oso cs a nee eet ae RY
34—Scutellum transversely lunate as in the preceding genera; body larger... .35
Scutellum small, equilatero-triangular; body very small.................+... 36

35—Prosternum prolonged as far as the middle coxe, gradually acuminate and
subprominent at tip, without trace of transverse suture between the anterior
coxe, which are separated by twice their width; antennal club as long as
the preceding six joints; body elongate-oval, smooth; beak thick, strongly
atcuate:! [Ty per Ps conmvextcauda novia| cis tiem Ghee ies eee oe hel aes Piperis
Prosternum truncate behind on a line through the middle cox, the transverse
suture oblit@rated but indicated by abrupt difference in sculpture; antenne
medial, as in the preceding, the club more sharply pointed, sometimes as
long as all the preceding joints combined; pygidium smaller, nearly flat,
similarly vertical; beak thick and strongly arcuate. [Type P. scrobiculata
ALO Vis SS Aisin sta) ratte rclaysds RISTO eT tes RUAN Cle 26 Rene: Se eet ns Serene esi Parapiperis
36—Body subrhomboid, with rather long elytra, which are very finely striate;
beak moderate, the antenne rather short, medial; prosternum more or less
excavated, separating the cox by about one-half more than their width;
legs somewhat slender, the anterior and middle femora sometimes angularly
prominent beneath; thoracic lobe moderate, rounded. [Type Baridius
SESUSIFISHIC CALA ah hg Mery HT DERE a reales Ree Ampeloglypter
Body regularly oval, with less elongate and more rounded elytra, having coarser
grooved strie; beak moderate, the antenne short, submedial, with non-
abrupt and moderate, oval club; prosternum flat, foveate at apex, separating
the coxze by nearly twice their width; legs slender, the anterior femora, as
well as the others, mutic; under surface densely cribrate; thoracic lobe
very moderate, truncate at tip. [Type S. nanella nov.]........ Solariopsis
Body oblong-oval, with obtuse and rather strongly grooved elytra; beak and
antennz nearly as in the two preceding; prosternum separating the coxe by
almost twice their width, the anterior slope feebly, longitudinally impressed,

BRAZILIAN BARINE 331

sometimes foveate at apex, the posterior lobe large, truncate as in Solariopsis;
legs slender, the femora mutic; under surface not densely cribrate in any
part; thoracic lobe large, evenly rounded and gradual as in Madarus. [Type
Retatratismisarsch—— bene see sce ale eee eee ee ee ee Radamus
37—Form oval, stout, very much as in Stethobaris; surface shining, glabrous,
sparsely and feebly punctulate, the thoracic lobe broadly rounded, with a
deep median nick, the scutellum narrow, elongate and parallel; elytra
coarsely, deeply grooved, the pygidium small and subvertical; beak moder-
ate, arcuate, the antenne medial, short, with rather large and elongate-
oval abrupt club; prosternum longitudinally impressed, the coxe separated
by about their width; femora moderate, mutic. [Type S. nudiventris
@hinpys | meee iss. civeccs sPateleetre Despateeat lk Che raha e bicbordedd Sock Stethobaroides
Form more elongate-oval, the surface subopaque, coarsely and closely punctate,
with a few squamules, the thoracic lobe feeble, shallowly sinuate, the scutel-
lum obtriangular, as wide as long, the elytra deeply grooved; pygidium
large, very oblique and conspicuous from above; beak moderately long,
feebly arcuate, the antenne slightly ultra-median, with very small and
abrupt club; prosternum flat, deeply constricted, separating the coxe by
slightly less than their width; legs moderate, the femora mutic. [Type H.
EME UTE NTASS ROR To LEAL ARYA gS OE OO Rat IS legates CAPE ens RO, le RR oe Hasidus
38—Body short, broadly oval, glabrous, rather shining; beak extremely short,
straight and conical; antenne very short, post-medial, with small and
gradual club, having a polished glabrous basal segment; eyes large, con-
tiguous beneath; prosternum feebly impressed, separating the coxze by
about their width; legs short, simple, with narrow tarsi, having a very
slender claw-joint; prothorax not tubulate, the basal lobe small, prominent,
narrowly truncate, the scutellum small, somewhat free; elytra shallowly
striate asa rule; pygidium oblique, somewhat large (<7), small and vertical
(2); propygidium invisible (co), very large and conspicuous (?). [Type
LENO TAOS PLEAS OX0) NG] | SMe eo eedts Ol ae EL Oe Oe ROOT Oe ee oe Brachybaris

The Madarini include a greater variety of structural types than
any other tribal group, such genera as Conoproctus, Paramadarus,
Tropidobaris, Piperis and Brachybaris, being extraordinary develop-
ments. In the course of time it will probably be found desirable to
divide it into several distinct tribes, but their limitation will prove
difficult. Typical Madarus apparently does not occur in Central
America, and at present, there are in that region many distinct
genera of this tribe still undefined; some of these have a deeply
canalate prosternum, a character wholly foreign to Madarus, and
there are many other special definitive structural characters among
them.

Notesia n. gen.

In this genus the body is oval or oblong-oval, more or less de-
pressed, subglabrous and with diversified sculpture, varying from
fine to exceptionally coarse. The beak is moderate in length, not
separated from the head by an impression, straight, subulate and
basally thickened, or feebly arcuate and more cylindric, probably in
the male, though otherwise it is almost impossible to distinguish
the sexes. The mandibles are prominent when closed and with the

332 MEMOIRS ON THE COLEOPTERA

inner edge perfectly straight. The antenne are medial or somewhat
behind the middle, moderate in length, the first two funicular joints
subequal and notably elongate, the others rather short, not much
thicker distally, the club thick and oval, with the basal segment
large, much more than half the mass, and becoming glabrous at
base. The prosternum is flat, broadly truncate behind, abutting
closely against the mesosternum, and is not armed in the male; it
separates the coxe by about one-half more than their width. The
legs are moderate, with mutic femora and shorter straight fluted
tibize, the tarsi slender, with feeble third and long fourth joint, the
claws long, free and diverging. The prothorax is briefly tubulate
at apex, with small and feebly rounded basal lobe, the scutellum
free, small, as long as wide and obtrapezoidal, and the elytra are
deeply grooved, the grooves in some species very coarsely punctate.
The known species are as follows:

Elytral grooves coarsely punctate, the pronotum with a dense confused mixture

Of very coarse to lessicoarse plinctukess) se ane reer 2
Elytral grooves not coarsely punctate, except at the sides; pronotal punctures
finer and sparser; body broader and more depressed..............-..--- 3

2—Body elongate-oval, rather convex, somewhat shining and nearly glabrous,
the elytra with single series of rather long, erect and stiff, yellowish sete,
the pronotum with a few shorter setz at the sides, the under surface with
small sparse squamules, almost obsolete on the abdomen; color umber
brown, more rufous beneath; beak in the type nearly straight, tapering
and smoother distally, rapidly bent at apical third, as long as the prothorax,
sculptured and setulose basally, the antenne slightly behind the middle;
prothorax a fourth wider than long, the subparallel sides broadly and feebly
arcuate, more reapidly rounding anteriorly to the tubulation, which is half
as wide as the base; larger punctures very coarse; fine median line subtumid,
obsolete anteriorly; elytra a third longer than wide, very evenly ogival,
with obtuse apex, nicked at the suture, nearly a fourth wider than the pro-
thorax and a little more than twice as long, the humeri slightly prominent;
grooves more than half as wide as the intervals, which have each a series of
coarse but very shallow, indistinctly defined punctures; abdomen convex,
finely, loosely punctulate, the fifth segment densely so. Length 3.0 mm.;
width 1.25 mm. Brazil (Santarem). One specimen...... sculpticollis n. sp.
Body almost similar but shorter, nearly similar in color, lustre and vestiture;
beak almost similar, but evidently longer than the prothorax, which is
rather more than a fourth wider than long, the sides more strongly arcuate,
becoming gradually parallel in about basal half; larger punctures having
about half the individual area of those of the preceding species, the median
subtumid line smoother and better defined, but obsolete toward base and
apex; elytra shorter, less than a third longer than wide, ogival, but with
more obtuse apex and more strongly arcuate sides, barely a fifth wider than
the prothorax and only one-half longer; sculpture nearly similar; abdomen
convex, similar and with a feeble medio-basal impression, which may indicate
the male, and also evident though feebler in the type of the preceding species.
Length 2.75 mm.; width 1.18 mm. Brazil (Santarem). One specimen.
catenulata n. sp.
3—Body more narrowly suboval and somewhat convex, the discal pronotal

BRAZILIAN BARINA 333

punctures small and rather sparse, though evidently larger and smaller
intermingled, the single series of interstitial setz EMMEIR@ Nyt oye ee 4
Body broader and strongly depressed, smoother, the discal pronotal punctures
fine, sparse and subeven in size; interstitial series of setee wanting, except
EMORY O'S O98 3 cuci'c. 200 Caan Re RNR OT OCC NOL ae eee cna ena ea a 5
4—Form rather more oblong-oval than in the two preceding, feebly shining,
castaneous, more rufous beneath; vestiture nearly as in the preceding species;
beak slender, almost straight, not quite as long as the prothorax, feebly
tapering in profile but, as in the two preceding, rather abruptly narrower—
viewed dorsally—beyond the antenne, smooth distally, punctured and
setulose basally, the antenne at two-fifths, the scape rather short; prothorax
a fourth wider than long, subinflated, the sides broadly, subevenly arcuate
throughout, gradually more converging beyond the widest part, which is
near basal third; punctures small and sparse, rapidly coarse, uneven and
dense at the sides; median smooth line wide and well defined, not tumid,
obsolete at apex and broadest at the middle; elytra a third longer than wide,
parabolic, somewhat strongly rounded at tip, less than a fifth wider than the
prothorax and scarcely twice as long; grooves less coarse than in the pre-
ceding and distinctly but less coarsely and more closely punctured, scarcely
more than half as wide as the intervals, which have the rather coarse but
very shallow punctures distinct; abdomen with the first two segments
extremely minutely and remotely punctate, somewhat flattened discally;
pronotum with a feeble rounded impression at each side at outer fourth and
basal third. Length 3.2 mm.; width 1.35 mm. Brazil (Santarem). One
SPECIE RE rie is cfs aca eh syane o ec nie ie thodle mene ticket n anpaie ° repentina n. sp.
Form nearly similar but larger in size and nearly black, the legs and under surface
rufo-piceous; vestiture as in the preceding, the elytral sete a little longer
and more distant; beak similar but very slightly longer, the antenne almost
similar; prothorax nearly similar in outline but longer, scarcely a fifth wider
than long; basal lobe smaller and feebler; surface without trace of the two
impressions of the preceding type; punctures and smooth median line
nearly similar; elytra scarcely a third longer than wide, parabolic, more
obtusely rounded behind, only a little wider than the prothorax and four-
fifths longer, the humeri similarly feebly prominent; grooves deep, half as
wide as the intervals, evidently but not conspicuously punctured along the
bottom, the intervals flat, with the large but shallow punctures much more
widely separated, the ninth similarly cariniform internally; abdomen nearly
similar. Length 3.7 mm.; width 1.7 mm. Brazil (Santarem). One
SU GEL! Seer Bee ect atcrDe iaono) Kaos Xa subulifera n. sp.
5—Body oblong-oval, strongly depressed, more shining, deep black, the under
surface and legs rufo-piceous; upper surface wholly glabrous and smooth,
excepting a few erect setz at the elytral apex; under surface with the squam-
ules very minute and sparse throughout; beak black, nearly straight, very
smooth, somewhat flattened, thick, punctured and setulose in basal third,
the dorsal aspect as in the preceding species; antenne at two-fifths, piceous,
the scape capitate; prothorax a fifth wider than long, the sides subevenly
arcuate, feebly so and more parallel behind, a little more strongly toward
the constriction, the very abrupt short tubulation scarcely more than two-
fifths as wide as the base, the latter coarsely grooved, the wide and very
feeble lobe narrowly extending across the groove; punctures very fine and
remote, rapidly somewhat coarse but well separated at the sides, the smooth
median line not crossing the apical constriction; elytra obtusely oval,
subparallel basally, not quite a third longer than wide, at the obtusely
prominent humeri evidently wider than the prothorax, four-fifths longer;
grooves less than half as wide as the intervals, moderately punctate, the
intervals flat, each with a series of very minute punctures, which become

334 MEMOIRS ON THE COLEOPTERA

rather coarse laterally, the eighth and ninth cariniform internally; abdomen
convex, minutely and sparsely punctulate, more closely and evidently at
apex. Length 4.5mm.; width2.0omm. Brazil (Santarem). One specimen.

lyterioides n. sp.

Body nearly similar but larger and still broader; lustre and vestiture nearly
similar, black, the under surface piceous-black; beak nearly similar but
shorter, only three-fourths as long as the prothorax, the latter almost of
similar outline, but nearly a fourth wider than long, and with the sides
somewhat more rapidly rounding anteriorly to the similarly narrow tubula-
tion; base similar, the lobe longer and more rounded; sculpture nearly
similar, except that the larger punctures at the sides are less coarse and rela-
tively more widely separated; elytra nearly similar, except that the intervals
are slightly convex and with the serial punctures toward the sides relatively
less strong; under surface nearly similar, except that the met-episterna are
longer, but with the same rather closer squamules, the smooth outer margin
of the metasternum broader; anterior femora much thicker and more swollen
than in lyterioides, more setulose; feeble convexity extending from each
anterior coxa to the constriction, wider and more densely clothed. Length
5.0 mm.; width 2.3 mm. A single specimen, received without label in the
Levette collection, but evidently from somewhere in the Amazon Valley—
possibly: Pagar na cc aking mas nei @ Spee seieties melts «east Ci wa latior n. sp.

Body smaller and much narrower than in /yterioides, but of similar outline, still
more depressed and subglabrous integuments; color dark red-brown, the
legs and under surface paler, rufous; beak nearly similar but about as long
as the prothorax, the latter narrower, scarcely a sixth wider than long, of
nearly similar outline, but with the tubulation relatively broader, nearly
half as wide as the base, which is similar; punctures rather small and sparse,
but two or three times as large as in the two preceding, relatively much less _
remote and, at the sides, rather coarse and decidedly dense; broad smooth
median line only extending a little beyond the middle and feebly convex,
not flat as in the preceding; elytra subparallel, obtusely rounded behind, a
fourth longer than wide, a little wider than the prothorax and four-fifths
longer; grooves similar; intervals flat, twice as wide as the grooves, each
with a single series of punctures, which are only moderate in size but twice
as close-set as in lyterioides; abdomen and under surface nearly similar, the
anterior femora subsimilar. Length 3.7 mm.; width 1.7 mm. Brazil
(Santarem) Ss Onelspeciinen iar iaeeae cee ei era depressa n. sp.

It is singular that each of these seven species should be represented
at present by but a single specimen from the same geographic
region, but I am unable to make any very satisfactory combinations,
and there are three remarkably different type-forms among them.
All of these types are probably females, excepting perhaps the first,
but unequivocal sexual modifications are not apparent. It is a
rather remarkable genus, without much doubt having peculiar and
secluded life habits. It is of course quite possible that the feeble
pronotal impressions of repentina may be an individual accidental
character, but the species is distinct in many other ways.

Notesiaspis n. gen.

The body in this genus is much smaller than in the preceding,
moderately convex, oblong-suboval and clothed rather closely as a

BRAZILIAN BARINZE 335

rule with narrow parallel scales, most of which are suberect and
bristling. The beak is moderate, evenly and distinctly arcuate,
strongly, longitudinally sculptured and basally squamulose (<), or
barely longer but thinner and evenly tapering, smooth but basally
punctured and squamulose (@), not separated by an evident
impression and with the mandibles dentate within and arcuate
without, but not very decussate, so that they are prominent when
closed; antenna medial, rather short, the first funicular joint nearly
as long as the next four, 2-7 short, increasing slightly, shorter and
more compact in the male, the club well developed and oval, with
its first segment about a third of the mass. The prosternum sepa-
rates the coxe by their own width or slightly more, and has two
very slender oblique spines in the male, individually variable in
length as usual, or wanting. The legs are not abnormal, but the
tibiz and tarsi are relatively short, the prothorax not or but feebly
tubulate, the basal lobe small but distinct, rounded, the scutellum
subquadrate, moderately squamulose and free and the elytra
abruptly and deeply grooved, the grooves rather distinctly punctate.
The species are as follows:

Upper surface with abundant suberect setiform squamules, yellowish in color.. .2
Upper surface with very few short erect squamules, the pronotum more coarsely
ANGEnUSOSelyeSCUlpEUREE I amen De in decid coerce setein a sen eek A NAPE. 2

2—Body oblong-oval, scarcely shining, piceous, the elytra and legs generally
more rufous, the sculpture coarse; beak about as long as the prothorax and
as described above; prothorax very little wider than long, the subparallel
sides feebly arcuate, more rapidly rounded anteriorly to the feebly constricted
apex, which is half as wide as the base; punctures strong, dense, more or
less longitudinally subconfluent, the median line smoother but very fine,
feebly subtumid; elytra more than a fourth longer than wide, oval, rather
strongly rounded at tip, only slightly wider than the prothorax and three-
fourths longer; grooves more than half as wide as the intervals, which are
confusedly punctato-rugose, the squamules in part confused; abdomen
convex, closely squamulose, all the squamules beneath decumbent; basal
segment not much modified in the male, the prosternal spines piceous,
rapidly porrect, varying from as long as the femoral thickness to three-
fourths as long as the prothorax. Length 2.3-2.8 mm.; width 0.85-1.25.

Brazil (Chapada—forest). May and September. ‘Twelve specimens.
hystrix n. sp.

Body narrower and more parallel, smaller in size, slightly paler in coloration, but
similar in vestiture and sculpture; beak shorter, not quite as long as the
prothorax in either sex, thicker in the male; prothorax nearly similar, but
with the parallel. sides straighter and somewhat more rapidly rounded
apically; elytra narrower, parallel basally, obtusely rounded behind the
middle, only very little wider than the prothorax and two-thirds longer;
sculpture almost similar, the grooves not quite so coarse; prosternum (<7)
with the spines wanting to extremely short and conical; antenne shorter,
the first funicular joint very thick, scarcely as long as the next three. Length
2.15-2.3 mm.;, width 0.8-1.1 mm... Brazil (Chapada). On flowers, in forest
clearingst slay \F our specimens...) 6c. 2). OS ae. soror n. sp.

336 MEMOIRS ON THE COLEOPTERA

Body somewhat as in soror, narrower and much more parallel than in hystrix,
rufous in color, the sculpture and vestiture very nearly as in the two preceding;
beak (2) very much longer, as long as the head and prothorax, the latter
more inflated and with broadly arcuate sides, more strongly, evenly rounding
beyond the middle to the very feebly constricted truncate apex, which is
more than half as wide as the base; elytra oval, fully a third longer than
wide, not distinctly wider than the prothorax and three-fourths longer; first
abdominal suture distinct throughout as in the others. Length 2.5 mm.;
width 1.18 mm. A single specimen, from the same locality and seasonal
appearance as thertwOrprecedin Gemnis eis i arene ieee parallela n. sp.

Body even more broadly oval than in hystrix, similar in sculpture, but with the
narrow squamules much more widely separated above and beneath, piceous
in color, the elytra and legs more rufous; beak (@ ) a little longer, almost as
long as the head and prothorax, but otherwise nearly similar; prothorax
almost a third wider than long, the sides broadly arcuate, gradually parallel
and feebly arcuate in more than basal half, the truncate apex much less
than half as wide as the base; sculpture nearly similar; elytra shorter, a
fourth longer than wide, oval, though relatively more narrowed behind and
more narrowly rounded at apex, with the usual feebly reéntrant sutural
angle, evidently wider than the prothorax and not quite twice as long, the
sculpture similar, except that the intervals are more loosely and regularly
punctate, the erect squamules in single series. Length 2.55-2.6 mm.;
width 1.2 mm. Brazil (Santarem). Two female specimens.

; fraterculus n. sp.
3—Form more oblong-oval, convex, piceous-black in color throughout, opaque
and much more coarsely scwWptured, with extremely few thick bristling erect
pronotal sete, those of the elytra well spaced in single series, finer and paler
on the under surface and narrow, decumbent and sparse throughout; beak
(.¢ ) nearly as in the preceding species and as long as the head and prothorax,
but separated from the head by a somewhat deeper sulciform impression;
prothorax fully a fourth wider than long, the parallel sides evenly and dis-
tinctly arcuate, more rapidly rounded anteriorly, the apex more than half
as wide as the base; punctures very coarse, confluent, shallow and opaque,
without trace of median smooth or tumid line; scutellum with but few
minute squamules; elytra oval, fully a fourth longer than wide, distinctly
wider than the prothorax and three-fourths longer; grooves coarse but
shallow, opaquely punctate and not much narrower than the intervals, which
have single series of rather coarse and shallow, confluent punctures; first
two ventral segments occupying two-thirds the length, the fifth short.
Length 2.65 mm.; width 1.18 mm. Brazil (Santarem). One example.
asperula n. sp.

It is probable that all of these species occur in different species of
flowers at certain seasons of the year.

Cropelia n. gen.

A single small oval and convex, glabrous and strongly sculptured
species alone constitutes this genus at present. The beak is very
moderate, feebly arcuate, subcylindric, strongly sculptured and
separated from the front bya distinct impression, the mandibles
strongly dentate within. The antenne are submedial, rather short,
the first funicular joint nearly as long as the next three, the outer
joints but little wider, the club small, oval, with its basal segment

BRAZILIAN BARINZE 337

fully half the length, the sutures distinct. The prosternum is flat
and unmodified, strongly punctate and separates the coxe by their
own width, the legs moderate and simple, the fourth tarsal joint as
long as the three preceding together, the claws rather long, straight
and basally connate. The prothorax is not at all tubulate at apex
and has a small, evenly rounded basal lobe, the scutellum small,
free, subquadrate, convex and somewhat sculptured and the elytra
deeply grooved; the tip of the last dorsal segment is slightly visible
in the obtuse reéntrant angle between the broadly rounded apices.
The type can be described as follows:

Cropelia punctata n. sp.—Rather stout, evenly oval and convex, somewhat
shining and deep black throughout; beak equal in length to the prothorax and
cylindric in the type, the antenne blackish; prothorax large, only a sixth wider
than long, the sides evenly arcuate, becoming gradually parallel at base, the
truncate apex about half as wide as the base; punctures coarse, deep, even and
only slightly separated, without median line; elytra short, only a fifth or sixth
longer than wide, oval, the rapidly obtuse apex half as wide as the base, equal in
width to the prothorax and only one-half longer; grooves deep, becoming gradu-
ally coarser and coarsely punctate basally; intervals rather narrow, each with a
single series of moderate but deep and distinct, very close-set punctures; ab-
domen convex, finely, loosely punctate, with a small feeble impression along the
median line of the first segment in the type. Length 2.25 mm.; width 1.0 mm,
Brazil (Santarem). One specimen.

The type is probably a male, although the sexual characters are
very feeble. The species is not at all closely related to any other
at present known.

Tonesia n. gen.

The body in this genus is more or less depressed, shining, oblong-
oval and always glabrous. The beak is cylindric, moderately
arcuate, separated from the head by a distinct impression and is
subsimilar in the sexes in typical species of the genus, the mandibles
dentate and decussate. The antenne are submedial, but more
basal in the subulate beak of the female of the robustula section,
short, the first funicular joint stout, nearly as long as the next three,
2-7 short, not much wider distally, the oval club very abrupt and
subequally divided by the deep sutures. The prosternum is flat,
widely separating the coxe and, in the male of all except the robus-
tula section, has two strongly porrect spines. The legs are moderate
and simple, the tarsal claws free and divergent, the prothorax feebly
subtubulate at apex, the scutellum subquadrate, free and flat and
the elytra coarsely and deeply grooved. The species at hand are
the following:

Beak subsimilar in the sexes; basal thoracic lobe very feeble and broadly arcuate
to almost obsolete, not sinuate; male prosternum armed, the spines sepa-
Fates yy Ap LOA MME S RIOR ey hot a aie stile foe es lesb alate wie eiGMe aie « leuelage atl aes 2

T. L. Casey, Mem. Col. X, Oct. 1922.

338 MEMOIRS ON THE COLEOPTERA

Beak dissimilar in the sexes, shorter and very slender, except at base, and with
the antenne post-median in the female, the thoracic lobe more evident and
medially sinuate at tip; male prosternum not armed; body evidently more

depressed). ios). cle 2. ako aid eek pene ware > SR ae 5
2—Prosternal spines arising about midway between the coxe and apex; thoracic
lobe’feeble!thouph:evident:e. <0 har sae ea ee MRE te 295, 8's oon 5
Prosternal spines longer and just before the coxz; thoracic lobe subobsolete,
barely at all traceablen.< v4 a Aes els ale den eescle eh ca SA ee 4

3—Body oval, moderately convex, shining and deep black, the legs piceous;
beak (<”) somewhat thick, cylindric, fully as long as the prothorax, very
moderately arcuate, shining and with rather close and moderate punctures,
in part serial; antenne medial, rufo-piceous; prothorax subinflated, a fifth
wider than long, the subparallel sides feebly arcuate, gradually rounding
beyond the middle to the rather distinct tubulation, which is somewhat less
than half as wide as the base; punctures coarse, deep, dense and longitudi-
nally subconfluent at the sides, gradually isolated and well separated in-
wardly, the distinct smooth median line not attaining base or apex; scutellum
as long as wide, obtrapezoidal; elytra obtusely oval, a fourth longer than
wide, only very little wider than the prothorax and three-fifths longer;
grooves coarse, punctured along the bottom, more coarsely laterad; intervals
moderate, narrow externally, with somewhat fine, rather close-set confused
punctures, in single lines on the narrower, the eighth and ninth slightly more
prominent; under surface moderately and somewhat closely punctate, the
male abdomen wholly unmodified, the prosternal spines short, not longer
than the femoral thickness. Length 2.85-3.0 mm.; width 1.23-1.3 mm.
Brazili(Santarem) = »womale specimens:2... see seen glabra n. sp.
Body more elongate and more parallel, rather less convex, shining and piceous,
the elytra brighter rufous; beak (co) much shorter, three-fourths as long
as the prothorax; antenne a little longer, piceous; prothorax more nearly
as long as wide, the subparallél sides slightly arcuate, less and more gradually
rounded more anteriorly than in glabra, the tubulation half as wide as the
base; punctures coarse, deep and separated by their own diameter, gradually
a little coarser and dense laterally, the surface abruptly smooth in about
median fourth, this smooth area with minute, sparse punctures throughout;
scutellum smaller and narrower; elytra nearly a third longer than wide,
oval, the rounded sides feebly sinuate just before the rather obtuse apex,
slightly wider than the prothorax and only one-half longer; sculpture nearly
similar, except that the interstitial punctures are a little coarser and less
close-set; abdomen and prosternum of the male nearly similar, the punctures
bearing rather more distinct slender squamules. Length 3.0 mm.; width
1.2mm. Brazil (Chapada). May. On flowers. One male specimen.
medialis n. sp.
4—Form oblong-suboval, a little narrower and more elongate in the male, very
moderately convex, shining, black throughout, the legs not paler; short and
rather slender; beak (co’) moderately arcuate, cylindric, somewhat thick,
shining, finely, loosely punctate and distinctly shorter than the prothorax,
or (@) nearly similar but thinner, feebly tapering and almost as long as the
head and prothorax; antennz piceous, submedial in both sexes; prothorax
() as long as wide, a little shorter (9), the sides broadly, feebly arcuate,
rather more parallel (co), gradually rounding in about apical half, the tubu-
lation distinct, somewhat less than half as wide as the base; punctures
coarse, slightly separated to very hear the sides, gradually smaller and sparser
inwardly, with a distinct narrow impunctate line; scutellum as long as wide,
obtrapezoidal; elytra oval, shorter and more obtuse in the female, a third

BRAZILIAN BARINA 339

(co) to fourth (?) longer than wide, very slightly wider than the prothorax
and one-half longer; grooves coarse and deep, as wide as the intervals,
except internally, the interstitial punctures small but deep, in single series
on the narrower, sparser, more minute and confused on the inner broader,
intervals; abdomen rather strongly punctate and very finely squamulose,
feebly impressed at the middle basally in the male, the prosternal spines
slender, more than half as long as the prothorax in the type. Length 3.65-
3.75 mm.; width 1.6-1.7 mm. Brazil (Chapada). May. On flowers. A
itatea Cemrore bl gaat ea ie = a) a tava Sih S| chat ROR RR Ne ore aA aC lateralis n. sp.

Form rather more oval and smaller, deep black and shining throughout; beak
(co) nearly as in the preceding, somewhat shorter than the prothorax, or ( @ )
somewhat more slender and fully as long as the prothorax; antennz piceous,
medial in both sexes; prothorax a fifth (<) to a fourth ( 2) wider than long,
the sides parallel and distinctly, subevenly arcuate, rapidly rounding and
very convergent in apical third or fourth; tubulation distinct, somewhat
less than half as wide as the base; punctures nearly as in the preceding;
scutellum with similarly oblique sides; elytra similar in the sexes, a fourth
longer than wide, rapidly oval, barely visibly wider than the prothorax and
one-half longer or less; sculpture almost similar, the eighth and ninth inter-
vals similarly cariniform; prosternum with a small deep apical fossa (2),
or with a large impression and two slender processes (co), the processes
similarly piceo-rufous, three-fifths as long as the prothorax; abdomen scarcely
modified in the male; size and outline of the body much more nearly identical
in the sexes than in the preceding species. Length 3.2-3.5 mm.; width 1.5—
1.6mm. Brazil (Santarem). Three specimens.......... amazonica n. sp.

5—Body rather broad, depressed, with subinflated prothorax, deep black through-
out, the legs black and notably short as usual; beak (9) feebly, evenly
arcuate, only three-fourths as long as the prothorax, feebly punctulate,
cylindric and notably slender, rather abruptly thicker, punctured and
minutely, loosely squamulose behind the antenne, which are near basal third
of the lower profile, blackish; prothorax rather wider at the middle than at
base, a fifth wider than long, the sides distinctly arcuate, more rapidly
rounded and converging beyond about the middle to the extremely short
and feeble tubulation, which is much less than half as wide as the base;
punctures laterally very coarse, deep and separated by nearly their own
diameters, rapidly becoming fine and very remote discally; elytra oval,
scarcely a fourth longer than wide, barely as wide as the prothorax and one-
half longer, the humeri not prominent; grooves deep, evidently punctured,
a third as wide as the intervals internally, but fully as wide as the latter
externally, the eighth and ninth intervals somewhat cariniform; interstitial
punctures minute and sparse, a little stronger and in single lines laterally;
scutellum flat, not quite as wide as long, obtrapezoidal; metasternum
coarsely, loosely punctate and feebly squamulose. Length 4.0 mm.; width

1.8mm. Brazil (Chapada—forest). November. One specimen.
robustula n. sp.

Body distinctly narrower; coloration and lustre similar; beak (@) similar but
still somewhat shorter, or (c*) much thicker, not tapering, more feebly
arcuate and somewhat less than three-fourths as long as the prothorax;
antenne nearly similar, medial (<*), at basal third (?), blackish; prothorax
nearly as long as wide, the sides less arcuate, similarly rounding beyond
about the middle, there only just visibly wider than at base, the longer
tubulation much (@ ) or only slightly (<7) less than half as wide as the base;
punctures laterally coarse and deep, but not so large or widely spaced as in
the preceding, rapidly fine and remote on the disk but less remote than in

340 MEMOIRS ON THE COLEOPTERA

vobustula; scutellum rather wider, and with less oblique sides; elytra as in
robustula, but just visibly wider than the prothorax and only two-fifths
longer; metasternum with the punctures closer and less coarse; male without
discernible sexual modification beneath. Length 3.7—-3.75 mm.; width 1.6—
1.65. Brazil (Chapada). On flowers, in forest clearings. Two specimens.
chapadana n. sp.

Body larger and more elongate, depressed, shining and deep black throughout;
beak (o) thick, feebly arcuate, a little longer than in the preceding, the
antenne medial; prothorax as long as wide, somewhat wider just beyond
the middle than at base, the sides strongly rounded, becoming feebly con-
vergent and nearly straight behind the middle, the rather distinct tubulation
a little less than half as wide as the base; punctures as in chapadana but still
more minute toward the middle; basal lobe less prominent than in either
of the preceding, the scutellum as in chapadana; elytra similar in form but
a little longer, more than a fourth longer than wide, barely visibly wider
than the prothorax and two-fifths longer; metasternum nearly as in the
preceding; male without evident sexual characters beneath. Length 4.3
mm.; width 1.85 mm. Brazil (Chapada). On flowers. October. One
Speciinen sc s rritemenec: « cotter coe vee meron agra ent subovalis n. sp.

It is probable that all the species occur in flowers, perhaps of
different species. The last three species constitute a rather distinct
subgeneric group.

Liotheantis n. gen.

The body in this and the two following genera assumes an entirely
different aspect from any of the preceding, being exactly homologous
with the prevailing type in the Centrinini. In the present genus
the body is completely impunctate above and only minutely and
very remotely punctulate beneath, the beak long, very slender and
evenly arcuate, thickened and more sculptured only for a short
distance at the extreme base, and separated from the head by a
very moderate impression, the mandibles dentate and decussate.
The antennz are distinctly behind the middle, long and slender,
the scrobes nearly horizontal, the scape virtually attaining the eye,
slender and capitate, the first six funicular joints slender and sub-
glabrous, the first as long as the next three, the second also elongate,
the seventh abruptly dilated to the width of the club, which it
closely adjoins, and it is similarly finely, densely pubescent, the
club long, oval, with the first segment nearly half the entire length.
The prosternum is even, the coxe separated by about twice their
width. The legs are rather long and slender, the tarsi slender and
the claws notably long, divergent, the prothorax tubulate at apex,
with almost obsolete basal lobe, the scutellum free, flat and obtri-
angular, and the elytra deeply but not coarsely grooved, the grooves
coarse and exarate only at the extreme apex. The single species
is as follows:

Liotheantis ebenina n. sp.—Elongate-oval, feebly subrhombic, convex and
polished, deep black throughout; beak (9) long, very slender, cylindric and

BRAZILIAN BARINA 341

almost smooth, nearly four-fifths as long as the elytra; antennz blackish, inserted
near basal third; prothorax about as long as wide, somewhat wider behind the
middle than at base, the sides broadly arcuate, the tubulation somewhat more
than half as wide as the base, the basal lobe small, very short and broadly rounded;
elytra three-fourths longer than wide, a fourth wider than the prothorax and
nearly twice as long, ogival in about apical half, the sides thence straighter and
feebly diverging to the feebly swollen humeri; grooves very feebly punctulate,
only about a fifth as wide as the intervals, which are entirely smooth; first ab-
dominal suture extremely fine. Length 5.8 mm.; width 2.35 mm. Venezuela
(Caracas).

The type was received from Desbrochers des Loges under the
title ‘‘Daclylocrepis ebeninus Db.” I have preserved the specific
name which is probably unpublished.

Theantis n. gen.

This genus is evidently related to the preceding, but differs very
much in the form of the basal thoracic lobe, scutellum, antenne and
in sculpture. The body is rhombic-oval and glabrous above, each
puncture of the under surface with a minute slender squamule.
The beak is slender, smooth, cylindric and evenly arcuate in both
sexes, separated by a subobsolete impression and with the mandibles
dentate and similarly decussate. Antenne at basal third (o") or
slightly behind this point (2), long, slender, with the first two
funicular joints long and subequal, the seventh somewhat longer
than wide, not so similar to the club in pubescence as in the pre-
ceding genus, the club much smaller, but little longer than the two
preceding joints, its basal segment more than half the length, the
remainder forming a regular cone, the sutures similarly distinct;
the scrobes are subsimilar, the scape shorter and more gradually
clavate. The prosternum is even, separating the coxe by twice
their width and, in the male, has two short porrect spines at a third
of the distance from coxe to apex, the part beyond the line of the
spines rapidly inclining upwardly and smooth, but not impressed.
The legs are long and rather slender, and the tarsal claws arcuate
and divergent, but very much shorter and feebler than in the
preceding. The prothorax is tubulate at apex, the basal lobe
rapidly formed, long, prominent and rounded at tip, the scutellum
very small, not so free, transverse, and the elytra with series of
distinct punctures in very fine obsolescent stric suturally, becoming
coarse grooves laterally and also at apex, the intervals flat even at
apex, not cariniform posteriorly as in the next genus.

This genus is probably allied to Eutoxus Schon. (type reflexus),
but there is no trace of pygidium in either sex.

The species known at present are three in number, as follows:

Body rhombic-suboval, convex, shining, piceo-rufous, the under surface, legs and
beak blacker; beak strongly, evenly arcuate in both sexes, about as long as

342

MEMOIRS ON THE COLEOPTERA

the elytra and but feebly, evenly tapering (co), or nearly similar in length
but slightly more slender, and more rapidly thickened behind the antennz
(@); antenne glabrous, shining and piceous; prothorax a fifth wider than
long, the sides distinctly converging from base to apex and, at the middle,
broadly arcuate, the tubulation very gradually formed, half as wide as the
base (2) or less (o"), and more punctate than the rest of the surface, which
has only sparse and infinitesimal punctulation, becoming more distinct at
the sides; elytra one-half longer than wide, a fifth wider than the prothorax
and three-fourths longer, ogival, the apex a little more obtuse in the male;
humeri obtusely and feebly prominent; punctures of the strie and grooves
strong and distinct, moderately separated; intervals smooth and flat, very
finely, serially punctate toward the sides only; under surface strongly, the
abdomen more feebly and sparsely, punctate, the latter feebly impressed at
base in the male, where the prosternal spines, as long as the femoral thickness,
are at the apical angles of a parallel plaque and separated by an even sinus,
the anterior tibie fimbriate internally in apical two-fifths, the anterior tarsi
not noticeably modified. Length 5.7—5.8 mm.; width 2.7-2.75 mm. Brazil
(Chapada—campo). November. Two specimens.......... striatula n. sp.

Body nearly similar in outline, coloration and sculpture but larger in size; long

and smooth cylindrical beak (o) still longer, being fully a fourth longer
than the elytra and in like manner rather coarsely but loosely punctured
behind the antenne, which are relatively still more basal, being distinctly
behind basal third, or ( 2 ) nearly similar but a little shorter and more slender,
though evidently longer than the elytra, the antennz blackish and long,
with similar small and narrowly oval club, and they are similarly inserted in
the sexes; prothorax almost similar, but more nearly as long as wide, the
punctures at the sides more minute and still sparser, those on the tubulation
strong and dense; basal lobe, scutellum and elytra throughout almost
similar, the fine squamules of the flattened apical slope rather more evident;
under surface in the male almost similar, excepting the prosternum, which
is distinctly different, there being a large and strongly punctate, flat and
obtrapezoidal plaque, subinclined upward and much wider than long, having
as its base the transverse suture between the coxe, its apex broadly, feebly
sinuate, with a small deep medial impression and with its outer apical angles
briefly prolonged and conical, the depressed surface beyond the plaque
nearly similar; anterior tarsi (co) with a conspicuous inner fringe of fine
hairs, not observable in striatula, the fringe of the anterior tibia extending
through apical half. Length 6.25-6.4 mm.; width 3.0-3.1 mm. Brazil
(Chapada—campo). November. Three specimens........ pectoralis n. sp.

Body nearly as in the two preceding, but blackish and with the lustre not polished

but somewhat alutaceous, the outline more sharply rhomboidal and the
sculpture still feebler; beak (co) only about as longas the elytra, similar in its
smooth, cylindric, strongly and evenly arcuate form and more punctate
basal part, the antennz subsimilar and near basal third; prothorax some-
what longer than in striatula, almost as long as wide, similar in outline and
base but with the discal punctures smaller and remote, infinitesimal and
barely discoverable, and, at the sides, very much smaller than in either of
the preceding; scutellum nearly similar; elytra somewhat shorter but of
nearly the same outline, one-half longer than wide, three-fifths longer than
the prothorax; oblique sides slightly more arcuate; strie internally finer,
almost obsolete and with finer punctures, externally with the grooves much
less coarse and less strongly punctate; punctures beneath similarly coarse,
well separated and finely squamiferous, the abdomen more finely and sparsely
punctate, similar in the male, the prosternum in that sex, as in striatula,

BRAZILIAN BARINZ 343

with the plaque subquadrate and sparsely punctate, the apical spines slender,
porrect and three-fourths as long as the femoral thickness, the anterior tibiz
fringed in nearly apical half and the inner fringe of the tarsi long and loose.
Length 5.75 mm.; width 2.75 mm. Brazil (Santarem). One specimen.
rhomboidea n. sp.

No note relating to the life habits of the above species was
recorded by Mr. Smith.

Pycnotheantis n. gen.

While subsimilar in bodily form, sculpture and polished integu-
ments to the two preceding genera, Pycnotheantis differs in many
points of structure. The body is much larger and stouter than in
Theantis, though nearly similar in form, the integuments sub-
glabrous. The beak is long and regularly arcuate but somewhat
thicker and is deeply sculptured in longitudinal furrows in an
entirely different manner, and its inferior outline is feebly crenulate
and with a loose fringe of short thick sete, a character faintly
recalling Pseudomadarus; the mandibles are decussate. The an-
tenn are near basal third, the first funicular joint as long as the
next two, the second also elongate, the outer joints gradually
thicker, the seventh larger, somewhat wider than long; the club is
small, oval, pointed, but little longer than the two preceding joints,
with its basal segment rather more than half the mass and less
pubescent at base. The anterior coxe are separated by not quite
twice their width and, in the male, the prosternum has two strong
and straight, suberect, thick and attenuate spines adjoining the
cox and mutually separated by a broad deep channel, abruptly
ending at the transverse intercoxal suture. The legs are long, the
tibiee deeply fluted, the tarsi long, with very long and conspicuous
fourth joint and unusually long and strong, free claws. The pro-
thorax is nearly as in the preceding, but the small scutellum is freer
and subquadrate, the elytral grooves deep, not distinctly punctate
except moderately at the sides and, gradually behind the middle,
become extremely coarse and with cariniform intervals. The three
species now known are as follows:

Prothorax inflated and with strongly rounded sides; body stouter, smooth, deep
black throughout and polished, the elytra with series, in part confused, of
short and slender, sparse brownish setiform squamules, each puncture of the
under surface with a very minute, slender squamule; beak (<7) as long as
the elytra, thick, subcylindric, coarsely, confusedly punctured at the sides
basally, elsewhere with coarse deep furrows; antenn blackish, only moder-
ately long and near basal third; prothorax not quite as long as wide, the
strongly and evenly arcuate sides gradually parallel toward base, the strong
tubulation much less than half the basal width, with its margin feebly
sinuate at the middle; basal lobe long, strongly rounded at apex, with an
impression at each side at the thoracic base; punctures minute and remote,

344 MEMOIRS ON THE COLEOPTERA

becoming abruptly rather coarse and longitudinally ruguliform at the sides;
scutellum transversely oval; elytra nearly one-half longer than wide, a fifth
wider than the prothorax and three-fourths longer, the oblique sides broadly
and feebly arcuate, the apex rather strongly, evenly rounded; humeri very
broadly, moderately tumid; grooves narrow, very coarse posteriorly; inter-
vals near base about five times as wide as the grooves, finely, sparsely punctu-
late along their median line, confusedly toward the humeri; abdomen (<“)
convex, feebly impressed medio-basally; prosternal spines not quite half as
long as the prothorax; inner fringe of the anterior tibiz very short, and
inconspicuous. Length 8.0mm.; width 3.85 mm. Brazil (Amazon Valley).
MEWONSDECIMICHS- Nay venp hcl oa. Arey Ree teen folate les<jor Ue tyc to oes cae valens n. sp.
Prothorax not inflated, the sides gradually converging and evenly, very moder-
ately arcuate from base to constriction; body narrower, similar in color,
lustre and in the fine brown elytral sete; beak (<7) fully as long, but some-
what thinner and more arcuate, especially beyond the middle, almost simi-
larly sculptured, the piceous antenne evidently beyond basal third; pro-
thorax about as long as wide, the tubulation and sculpture almost similar;
basal lobe narrower and more strongly rounded, the lateral impressions
almost similar; scutellum less transverse; elytra narrower, but otherwise
almost similar throughout, rather less than a fifth wider than the prothorax,
about two-thirds longer, the humeri less obtuse but not quite so prominent;
sculpture nearly similar, but with the interstitial punctures not more con-
fused toward the humeri; under surface in the male subsimilar, the prosternal
spines in the type a little less than half as long as the prothorax but, in a
second smaller specimen with somewhat shorter beak, they have the form
of short conical tubercles; inner fulvous fringe of the anterior tibie very
long, dense and conspicuous, gradually diminishing toward base; anterior
tarsi with long and loose inner fringe. Length 5.9-7.0 mm.; width 2.75-
3.2mm. Brazil (Amazon Valley). Two specimens.......... exarata n. sp.
Prothorax with more strongly arcuate sides than in the precéding, but less in-
flated than in valens, the body shorter and relatively stouter than in exarata,
the color and fine sete similar; beak (co) strongly arcuate and longer than
the elytra, sculptured as in valens, the blackish antennz a little behind the
middle; prothorax evidently shorter than wide, the distinctly and evenly
arcuate sides not becoming quite parallel at base, the lobe, sculpture and
tubulation nearly as in valens, the medio-apical sinus feebler; scutellum
smaller, transversely oval; elytra as in exarata; abdomen similar: prosternal
spines a third as long as the prothorax; inner fulvous tibial fringe as in
exarata and very different from that of valens; tarsal claws similarly very
long and conspicuous. Length 7.3 mm.; width 3.35 mm. Brazil (Amazon
WEES TESTS ie occ MIS Rie Ste SUS it oe a eS Yea ae RI lobata n. sp.

All of the above four specimens were received from Desbrochers
des Loges, without further indication of locality; one of them bore
the legend ‘‘Dactylocrepis n. sp., ex Jekel.’’ There may be two
species united above under exarata, but so closely allied that no
definitive separation can be made at present, the material being
very scanty. The female is unknown to me in this genus.

Parisoschcenus Faust
Limnobaroides Chmp.

The species of this genus are small, oval, rather convex, coarsely
sculptured and with more or less abundant slender squamules,

BRAZILIAN BARINZ 345

sometimes dense, or variegated and conspicuous; they are very
numerous in central northern South America, but, as in so many
other cases, probably do not occur on the Pacific coast. The beak
is rather slender and arcuate, cylindric or feebly tapering and varies
from rather short to longer than the elytra; it is not separated by
a distinct impression and has the mandibles arcuate, dentate within
and decussate. The antenne are medial asa rule, the first funicular
joint about as long as the next three, the club well developed, oval,
subequally divided by the sutures and as long as the preceding four
to six joints. The anterior coxe are usually separated by distinctly
more than their own width, the prosternum flat, with small anterior
fovea and is generally bispinose in the male, the spines not separated
by a circular cavity. The legs are moderate and the tarsi somewhat
slender, the claws moderate, arcuate, free and divergent. The
prothorax is tubulate to virtually non-tubulate at apex, the basal
lobe feeble and truncate or sinuate at apex and the scutellum flat,
free, subquadrate, narrowed at base, sinuate at apex and with
prominent acute apical angles. The elytra are more or less coarsely,
deeply grooved and the pygidium small but always distinct, oblique
in the female; the body is nearly always smaller in the female.
The numerous species in my collection may be known as follows:

Elytra broadly fasciate just behind the middle. Body stout, oblong-oval, convex,
piceous, the elytra and legs rufous; scales above large, whitish, dense in
about lateral fourth of the pronotum, at the elytral base and on the sutural
interval to apical third, also scattered toward the sides of the elytra; inter-
vals 2-4 densely, 5-6 more sparsely, clothed with yellow-brown scales, from
a little before the middle to apical third; under surface densely clothed
with whitish scales; beak (c”) feebly tapering, rather thin, evenly arcuate,
as long as the head and prothorax, punctured and squamulose, the antenne
rufous, slender, barely beyond the middle; prothorax subinflated, a fourth
wider than long, the strongly arcuate sides parallel basally, the non-tubulate
truncate apex three-sevenths as wide as the base; punctures moderately
coarse, deep and very close-set, the smooth median line well defined, ex-
tending beyond the middle; elytra but very little longer than wide, just
visibly wider than the prothorax and only two-fifths longer, oval, individually
rounded at apex as usual, the humeri not tumid; grooves deep, punctured,
fully a third as wide as the intervals, which are finely, rather closely, con-
fusedly punctate in the non-squamose parts, pygidium and propygidium
distinct; abdomen scarcely modified; prosternal spines straight, subporrect,
very slender, rufous and not quite as long as the prothorax. Length 2.75
mm.; width 1.33 mm. Brazil (Chapada). May. One specimen.

plagiatus n. sp.

Elytra not fasciate, the base, especially on the alternate intervals—on the first

interval throughout, more or less densely squamose........---+.+++++++> 2
Elytra neither fasciate nor densely squamose along the suture, except sometimes
LOWATGED ASCH TAMIR ati. mick epee eee grre CR Mt ah a Aes classe) cite) shales olab elfen ieee: cee. 5

2—Paler scales above white. Body narrow, parallel and subcylindric, feebly
shining, black, the elytra piceous, the legs rufous; beak (@ ) slender, feebly
arcuate, smooth distally, loosely squamulose basally, a little longer than

346 MEMOIRS ON THE COLEOPTERA

the head and prothorax, the antenne rufous, medial; prothorax a fourth
wider than long, the parallel sides very feebly arcuate, rounding in about
apical third, the non-tubulate truncate apex more than half as wide as the
base; punctures moderate, distinctly separated, the smooth median line
rather wide; squamules slender, not dense, largely wanting in a broad
median area; elytra a third longer than wide, equal in width to the prothorax
and three-fourths longer, the sides parallel and straight, obtusely rounding
in about apical third; grooves moderate; intervals with strong uniserial
punctures, the squamules slender, loosely scattered, largely brown on the
secondand third. Length2.6mm.; widtht.omm. Brazil (Chapada). May.
On flowers in clearings. One specimen............... subcylindricus n. sp.
Pale scales above yellow and close-set, white beneath, dense on the met-episterna;
body much larger, convex and broadly oval; thoracic apex tubulate.......
3—Thoracic tubulation () long and abruptly formed, only two-fifths as wide
as the base; elytra with the paler uniserial squamules, except at base and
along the suture, dark brown and very inconspicuous. Broadly oval, convex,
rather shining, piceo-rufous, the elytra blacker, the legs piceous; beak (<7)
strongly sculptured, not very slender, more arcuate beyond the middle and
equal in length to the elytra, the slender rufous antenne submedial; pro-
thorax large, somewhat more than a fourth wider than long, the sides broadly,
strongly arcuate, becoming gradually straighter and parallel behind the
middle; punctures rather small but deep and sparse, becoming gradually
coarse, rugose and subconfluent toward the sides, the squamules slender and
somewhat sparse, wanting broadly on the disk; elytra broadly oval, a fifth
longer than wide, very slightly wider than the prothorax and two-fifths
longer, the grooves coarse and deep, fully half as wide as most of the intervals,
the interstitial punctures strong and well separated; prosternal spines long,
slender, testaceous, subequal in length to the prothorax; abdomen more
finely and sparsely squamulose medio-basally but not impressed. Length
3-65-3.85 mm.; width 1.75-1.85 mm. Brazil (Chapada). May. On
flowers in clearings. Two male specimens................. obesulus n. sp.
Thoracic tubulation very gradually formed, shorter and feebler in the female;
discal serial squamules of the elytra brown, mingled with paler........... 4

Ww

4—Body throughout in form, coloration, lustre and vestiture as in the preceding;
beak (<") longer, more slender, strongly and more evenly arcuate and longer
than the elytra, or (9) evidently shorter, more slender, more feebly arcuate,
feebly tapering, smoother distally but subsimilar basally; antenne slender,
rufous, medial (@), just visibly beyond (); prothorax large, throughout
nearly as in the preceding, except that the tubulation is gradual and a little
wider, three-sevenths as wide as the base, shorter and still wider in the
female; elytra throughout nearly as in the preceding, except that the strong
interstitial punctures are more close-set, the sides strongly rounded, with
very obtuse apex (<”), or more oblique and less arcuate (@); male abdomen
distinctly impressed, as well as more feebly squamulose, medio-basally, the
slender testaceous prosternal spines about as long as the prothorax; female
smaller than the male. Length 3.15-3.9 mm.; width 1.35-1.8 mm. Brazil

(Chapada). May. On flowers in clearings. Four specimens.
suturalis n. sp.

Body in the female somewhat as in the same sex of suturalis, but smaller and
much more narrowly oval, nearly similar in coloration and vestiture, except
that the scales beneath, on the hind body, are smaller and less dense; beak
(2) nearly similar but rufous and shorter, being only as long as the head
and prothorax, the latter narrower, scarcely a fourth wider than long, the
sides more parallel and not so arcuate, more rapidly rounding anteriorly

BRAZILIAN BARINAE 347

from a greater distance beyond the middle; punctures in the large glabrous
median region more close-set, denser apically, the median smooth line broad,
much more sharply defined than in either of the two preceding; elytra
nearly as in suturalis but with the lateral pale squamules much more abun-
dant; grooves not quite so coarse. Length 2.8 mm.; width 1.35 mm.
Brazil (Gantarem). (One specimen. Je 0. cee: coe se a: subsimilis n. sp.

5—Surface densely opaque, because of excessively minute and close punctuation,
as in the genus Camerones. Form rather stout, oblong-oval, convex, dark
red-brown, the elytra and legs slightly paler; squamules ochreous-yellow
above and beneath, small, sparse and intermingled with some darker and
more pointed on the pronotum, close-set and in single lines on the elytra,
but broadly confused toward the scutellum, especially on the second interval,
very small and well separated beneath; beak ( ) evidently longer than the
head and prothorax, feebly arcuate, very slender, smooth and shining,
thickened and sculptured behind the slender antennz, which are unusually
basal, being a little behind basal third; prothorax a fifth wider than long,
the sides moderately and very evenly arcuate, becoming gradually parallel
or somewhat incurvate basally, the abrupt tubulation fully half as wide as
the base; punctures fine, feeble and sparse, dense and larger at the sides,
without median smooth line; elytra oval, only slightly longer than wide, a

TUR MEER eR EIA) MPM re Se AS eyes tod anaes cael ciel Gedsure Sane lle east baie rufinus n. sp.
Surface shining between the regular punctures.........--..- +s eee eee e eee 6
6—Upper surface more or less opaque, due to the density of the rather coarse

regular punctures, which, on the pronotum, have their bottoms opaque, the

very narrow interstices, however, polished; all the strial intervals confusedly
squamose, more broadly so toward base of the second interval; body oblong-

wall avivsl CONES ALS syn aac aan s bo Cane Clue eee Eoioip ny ee Hip Bite oiet.e70 6 7
Upper surface rather shining, the punctures never so dense, the interstrial squam-
ules for the greater part in single lines; form sometimes subcylindric...... 8

7—Form elongate, suboblong-oval, convex, with inflated rounded sides of the
prothorax, deep black and opaculate, the legs piceous-black; squamules
small, yellowish, distributed uniformly and loosely over the entire pronotum,
a little larger and confused but well separated throughout the interstrial
spaces, broader, dense and whiter beneath; beak (<”) rather thick and
moderately arcuate, as long as the head and prothorax, dull and punctulate,
squamulose basally, the antennz slightly beyond the middle, nearly black;
prothorax wider at the middle than at base, a fourth wider than long, the
parallel sides evenly and rather strongly arcuate, strongly converging ante-
riorly, the feeble tubulation less than half as wide as the base; punctures
somewhat coarse and very dense throughout, but with a distinct narrow
impunctate and feebly tumid median line, not extending to base or apex;
elytra oval, with slightly prominent humeri, more than a fourth longer than
wide, slightly wider than the prothorax and two-thirds longer; grooves
sharply defined and deep; intervals coarsely, confusedly punctate; pygidium
shorter than usual, twice as wide as long; male abdomen not evidently
modified, the prosternal spines slender, porrect, somewhat upwardly curved
and a little more than half as long as the prothorax. Length 3.3 mm.;
width 1.38 mm. Brazil (Chapada—campo). October. One specimen.
rotundicollis n. sp.
Form much shorter, oblong-oval, piceous-black, the legs faintly rufous; squam-
ules yellowish, fine and loose throughout the pronotum, a little broader and

348 MEMOIRS ON THE COLEOPTERA

denser toward the sides; on the elytra much broader, though linear, confused
and rather dense throughout the intervals; beneath large, whiter and very
dense throughout; beak in the type rather thick, only feebly tapering,
moderately and evenly arcuate, dull, punctulate, squamulose basally and
scarcely as long as the head and prothorax, the piceous antenne barely visi-
bly beyond the middle; prothorax more than a fourth wider than long, the
parallel sides feebly arcuate, gradually rounding beyond the middle, the very
briefly and feebly subtubulate apex half as wide as the base; punctures rather
coarse and very dense throughout, without trace of smooth median line;
elytra very obtusely oval, the sides only just visibly oblique, nearly a fourth
longer than wide, distinctly wider than the prothorax and three-fourths
longer; grooves coarser than in the preceding, but shallower and not so
sharply defined; intervals coarsely, closely and confusedly punctate; pygid-
ium but little wider than long, oblique; abdomen and prosternum wholly
unmodified. Length 2.8 mm.; width 1.33 mm. Brazil (Chapada). June.
One specimen, of undetermined sex, the beak and antenne indicating the
male, the oblique pygidium and absence of abdominal and prosternal modi-
fications the female, as shown by the other species........ vestitus n. sp.

8—Prothorax large and finely, sparsely punctured, except toward the sides as in
obesulus and suturalis. Stout, shining, rather broadly oval and convex,
blackish-piceous, the pronotum laterally and beak distally rufescent, the
legs rufous; squamules above yellowish, slender and well separated on the
pronotum, wanting in a broad median area; very distinct and in single lines
throughout the elytra, but confused toward the scutellum; larger, whiter
and dense on the under surface of the hind body, but fine and well separated
on the prothorax beneath; beak (<7) rather thick and strongly, evenly
arcuate, sculptured and squamulose, as long as the head and prothorax, or
(2) much more slender, smoother, less arcuate and much longer than those
parts; antenne submedial (9), a little beyond (<), slender, dark rufous;
prothorax (<%) fully a fourth wider than long, the parallel sides feebly arcuate,
gradually rounding beyond the middle to the feeble tubulation, the punctures
small and sparse, larger and roguliform toward the sides, or (@) not so large
and with the punctures medially much stronger, though well separated;
elytra oval, only a little longer than wide, very little wider than the prothorax
and two-fifths (o) to one-half () longer; grooves deep and abrupt, rather
more than half as wide as the intervals, which have somewhat strong uni-
seriate punctures; male abdomen scarcely impressed but finely, sparsely
squamulose medio-basally, the slender testaceous prosternal spines fully as
long as the prothorax. Length 2.75-3.2 mm.; width 1.35-1.55 mm. Brazil
(Samtaten).), Highespeemnens... 62. osc ou... oes ee ee ovatus n. sp.
Prothorax moderate in size and more uniformly punctured................... 9

g—Prothorax short, barely more than half as long as the elytra and alutaceous
in lustre. Body rather stout, oval, only moderately convex, red-brown in
color, the elytra black and slightly shining; yellowish squamules on the
pronotum rather large and close basally and toward the sides, more slender
apically, elsewhere denuded in the type; on the elytra they are slender and
in single series; whiter and dense beneath; beak ( @ ) slender, feebly arcuate,
much longer than the head and prothorax, rufous, the antenne barely
visibly behind the middle; prothorax nearly one-half wider than long, the
parallel sides nearly straight, rounding in about apical third; apex distinctly
more than half as wide as the base; punctures rather coarse, clearly defined
and well separated toward the punctureless median line, gradually coarser
and dense laterally; elytra oval, a fifth or sixth longer than wide, evidently
wider than the prothorax and more than three-fourths longer; grooves deep

BRAZILIAN BARINE 349

and abrupt, half as wide as the intervals, which have each a single series of
coarse and close-set punctures. Length 2.65 mm.; width 1.28 mm. Brazil
(Chapada—forest). November. One specimen......... .brevicollis n. sp.
Prothorax less abbreviated, its surface more polished between the punctures. .10

10o—Pronotum conspicuously squamulose throughout, but with the squamules

more slender and less close-set medially... .....-..--.---e eee ee eeeees II
Pronotum sparsely and finely squamulose or, if more distinctly so, with the
squamules wanting broadly toward the middle.........-.+-+-+++++++-- 12

11—Body rather stout, oval, black, the legs and beak rufous; squamules above
yellowish, only a little more slender narrowly at the middle of the pronotum;
on the elytra conspicuous and close-set in single series, narrowly confused
toward base on the inner intervals; whiter and dense beneath, except as
usual on the propleura; beak (<7) black, rather thick, very moderately
arcuate, feebly tapering, sculptured and longer than the head and prothorax,
or (@) distinctly thinner, similarly arcuate but not quite so long; antenne
rufous, slightly beyond (<7) or a little behind (9) the middle; prothorax a
sixth () or a fifth (Q) wider than long, the parallel sides nearly straight,
rounding in apical third to the short tubulation, which is just half as wide
as the base (9) or narrower (c7); punctures strong, separated by their
diameters or less toward the smooth median line; elytra oval, only very
little longer than wide, distinctly wider than the prothorax and one-half (<)
to two-thirds (2) longer; grooves deep, punctured, fully half as wide as the
intervals, having strong and close-set, uniseriate punctures; male abdomen
very feebly impressed and abruptly, sparsely and finely squamulose medio-
basally, the porrect prosternal spines very slender, testaceous, upwardly
somewhat curvate and three-fourths as long as the prothorax in normally
developed examples. Length 2.35-2.8 mm.; width 1.1-1.28 mm. Brazil
(Chapada—forest). May and November. Thirteen specimens.
brevipennis n. sp.
Body smaller, narrower and more convex, shining, rufous, the elytra alone more
obscure; squamules nearly as in the preceding; beak (co) more slender and
more strongly arcuate, sculptured and partially squamulose as usual, very
feebly tapering and much longer than the head and prothorax, or (9)
notably shorter, still more slender, smoother, similarly arcuate and very
little longer than those parts; antennz (<") submedial or ( 2 ) near two-fifths;
prothorax a fifth (<) to a fourth (9) wider than long, the parallel sides
rounding from nearer the middle; punctures much coarser and everywhere
close-set or dense, the median smooth line narrow and sharply defined;
elytra a fifth longer than wide, oval, similarly proportioned with regard to the
prothorax; sculpture almost similar, the uniseriate punctures of the intervals
not quite so coarse; male abdomen medio-basally abruptly subdenuded but
not impressed, the very slender pale porrect prosternal spines varying from
very short to about half as long as the prothorax. Length 2.15-2.45 mm.;
width 0.9-1.18 mm. Brazil (Chapada—forest). May and November. On
flowers as usual. Eighteen specimens...........---+++-+:: seriellus n. sp.

Body still a little smaller and more narrowly oval than in seriellus, piceous-black,
shining, the legs pale red-brown, the squamules rather less conspicuous but
with a more evident denser spot at the base of the second strial interval,
white beneath but only moderately dense, sparse on the prothorax; beak (2 )
piceous, slender, feebly arcuate, longer than in seriellus and much longer
than the head and prothorax, the slender rufous antennz only just visibly
behind the middle; prothorax longer, scarcely a fifth wider than long, the
parallel sides nearly straight, gradually rounding beyond the middle to the
non-tubulate apex, which is wider and evidently more than half as wide as

350 MEMOIRS ON THE COLEOPTERA

the base; punctures coarse but separated by about their diameters, denser
anteriorly as usual, the smooth median line much wider; elytra oval, a fifth
longer than wide, only slightly wider than the prothorax and two-thirds
longer, the sculpture nearly similar; pygidium similarly small, strongly
rounded and just visibly wider than long. Length 2.0 mm.; width 0.85
fim brazil (Santarem). Onerspectmentanss ae eee brunneipes n. sp.
12—Body very narrow, parallel and cylindric. Color piceo-rufous throughout,
the pronotum somewhat more obscure; squamules yellowish, those of the
pronotum extremely fine and not dense, wanting in median third, on the
elytra broader, white and conspicuous in single lines, confused basally except
toward the sides; on the under surface fine, white and well separated; legs
red-brown, beak (2) slender, only feebly arcuate and distinctly longer than
the head and prothorax, the rufous antenne very slightly behind the middle;
prothorax a fifth or sixth wider than long, the parallel sides straight, rounding
and oblique beyond the middle, the non-tubulate apex just half as wide as
the base; punctures very moderate but deep, dense laterally, but distinctly
separated toward the wide smooth median line; scutellum small, subglabrous,
convex, truncate behind, with sharp angles; elytra fully a fourth longer than
wide, the sides parallel and straight, evenly rounded in apical third, excepting
the usual reéntrant sutural angle, just visibly wider than the prothorax and
three-fourths longer; grooves deep, half as wide as the intervals, which
have the usual single series of moderately coarse punctures; pygidium small,
circularly rounded. Length 2.15 mm.; width 0.75 mm. Brazil (Chapada).
Mayan Onelspecimen:. 58"... sean segs cae ere eee ',..angustus n. sp.
Body, broader, oval, always deep black im colorias5- 2455 eee oe eer 13

13—Pronotal punctures strong, but not dense, except toward the sides, generally
separated by at least their own diameters; prosternum not spined in the

TTD ONS ey sic, ee Sey ssito, Vics e AEN, Spa alle oe) 2 POIROT RRR SCORE: De aoe 14
Pronotal punctures coarse, deep and dense, always closer than their own diam-
eters; podmideep blacks theless hitOuSta a peat er ann eterna 17
| We] DYEICay 12,6 Ieee es ene er aE MERON Ue le abs b dé cit ice fs 15
Teers deep lacks. so. viens sldcocieiesnie aks sue abate tot Pate OEE 16

15—Form oval, shining; color deep black throughout, excepting the legs; squam-
ules throughout above whitish, slender, sparse and distinct though incon-
spicuous in single interstitial lines, broader and close beneath on the hind
body; beak (o’) notably slender and arcuate, much longer than the head
and prothorax, or () scarcely so slender as in the male, rather more thick-
ened at base and very little shorter; antenne piceous, at the middle (<), or
distinctly behind the middle (@); prothorax fully two-fifths wider than
long, the sides feebly converging and straight, broadly rounding beyond the
middle; smooth median line entire; elytra broadly oval, a fifth or sixth
longer than wide, slightly wider than the prothorax and not quite twice as
long; grooves deep; interstitial punctures strong, rather well separated in
the single series; male without distinct sexual modifications. Length 2.4—
2.85 mm.; width 1.18-1.35 mm. Brazil (Espirito Santo). Desbrochers des
IOSESS POEVEMESPECIMENS . esisuedelers aie fancy cuales Stic erste ale parcus Fst. (MS?)
Form oval but narrower than in parcus, deep black throughout and rather less
shining, the pronotum alutaceous; squamules above almost wholly denuded
in specimens at hand, those beneath white and narrowly separated; beak
(2) slender, moderately arcuate, slightly longer than the head and prothorax,
the antenne submedial; prothorax less transverse and more parallel, two-
fifths to a third wider than long, the arcuate sides gradually becoming
subparallel in about basal half; punctures isolated, not so coarse as in the
preceding, separated by about their own diameters, dense at the sides as

BRAZILIAN BARINZ 351

usual; elytra less broadly oval, nearly a fourth longer than wide, evidently
wider than the prothorax and nearly four-fifths longer; sculpture almost as
in the preceding, except that the grooves are somewhat coarser, almost fully
as wide as the intervals externally, the moderate deep punctures of the
single interstitial series well separated. Length 2.65-2.8 mm.; width 1.25-
1.28mm. Brazil (Chapada). May. On flowers, in forest clearings. Two
EPECUMIENG y-aeky AN ent eae ete SATs ale) sist. DA lotare eae ellipsis n. sp.

16—Body more broadly oblong-oval than in the preceding, shining and deep
black throughout, the squamules above white and distinct, sparse on the
pronotum, in single lines on the elytra, short and well separated throughout
beneath; beak (?) smooth, shining, deep black, very moderately arcuate
and notably slender, much longer than the head and prothorax, the antenne
at three-sevenths; prothorax shorter, almost one-half wider than long, the
sides converging and very feebly arcuate, rounding only in apical third or
fourth, the subtubulate apex half as wide as the base; punctures still coarser
and sparser, separated by nearly twice their widths, the smooth median line
well developed and entire; elytra broad, rapidly and very obtusely rounded
behind, the sides but slightly oblique, only very little longer than wide,
distinctly wider than the prothorax and four-fifths longer; grooves deep;
punctures of the interstitial series rather strong but well separated. Length
2.55 mm.; width 1.28 mm. Brazil (Espirito Santo). Desbrochers des
Logessi@me- specimens. 2% 2 icird ata ide dye tans dine wala aagey nigripes n. sp.

Body much narrower than in either of the two preceding, deep black throughout,
the pronotum feebly alutaceous, the elytra strongly shining; squamules
white, slender, sparse and inconspicuous above, separated beneath; beak
(@) very slender, smooth, shining, distinctly and evenly arcuate and only
very little longer than the head and prothorax; antenne slender, at three-
sevenths; prothorax smaller and narrower, but little over a fourth wider
than long, the sides parallel and nearly straight, rounding and oblique in
apical third or fourth, the subtubulate apex distinctly more than half as
wide as the base; punctures coarse, separated by about their own diameters
on the disk, the smooth median line distinctly defined and entire; elytra a
fourth longer than wide, more evenly oval, almost a fourth wider than the
prothorax and nearly twice as long; sculpture nearly similar but with the
seriate interstitial punctures less coarse and still more widely spaced; squam-
ules beneath well spaced. Length 2.65 mm.; width 1.2 mm. Brazil
(Petropolis). Desbrochers des Loges. A single example. ..melaneus n. sp.

17—Body very small, narrower, the male without prosternal spines. Deep
black, rather shining, the legs bright rufous; squamules white, very slender,
sparse and inconspicuous above, longer but well separated beneath; beak
(#) feebly arcuate, short, not as long as the head and prothorax, or (9 )
more slender, less tapering and rather longer than those parts; antenne
just visibly behind the middle (2), or medial (o%); prothorax almost as
long as wide (<7), distinctly wider (9), the parallel sides nearly straight,
broadly rounding beyond the middle, the apex more than half as wide as the
base in both sexes; punctures notably coarse, less so anteriorly, the.smooth
line narrow, incomplete in the female; elytra oval, a fourth longer than
wide, broadly, obtusely rounded at apex, about a fourth wider than the
prothorax and nearly twice as long; grooves deep, more than half as wide
as the intervals, the. uniseriate interstitial punctures coarse; male without
distinct sexual modifications beneath, the pygidium vertical, in the female
oblique. Length 1.8-2.15 mm.; width 0.7-0.85 mm. Brazil (Chapada).
IMiaiy) ) SI SPECKMAETIS.. Sos tiers te oieie ete wiclovelantieno ale eae ae nanulus n. sp.
Body not so small and always much more broadly oval; male, where known, with
well developed prosternal spines.......-..- +++ - sees tees e ene e eter es 18

352 MEMOIRS ON THE COLEOPTERA

18—Body oval, more oblong in the male, deep black and shining; squamules
whitish, very slender, sparse and inconspicuous above, more distinct and in
single lines on the elytra, close-set beneath, except on the propleura; beak
(o) evenly, moderately arcuate, longitudinally sculptured and much longer
than the head and prothorax, or (2) slightly shorter, more slender and
smoother; antennz submedial; prothorax (c’) nearly as long as wide, with
evenly arcuate sides, becoming parallel basally, or (2) smaller and shorter,
with slightly more converging sides; feeble tubulation half as wide as the
base (9 ), a little narrower (co); punctures strong and close; smooth median
line distinct and subentire (co), or short and less distinct (9); elytra oval,
nearly a fourth longer than wide, less obtuse behind in the female, slightly
wider than the prothorax and two-thirds (c’) to three-fourths (2) longer;
grooves deep, not quite as wide as the intervals, which have close strong
uniseriate punctures; male abdomen narrowly and very feebly impressed
medio-basally, the prosternal spines, when well developed, slender, testa-
ceous, upwardly arcuate and three-fourths as long as the prothorax. Length
2.3-2.8 mm.; width 1.1-1.28 mm. Brazil (Chapada). May. On flowers.
Twelve speciinens’.:2 Sirs seat eer eve ee iaciens Stecten mara puncticollis n. sp.

Body still more broadly oval, black and shining, squamules whitish, sparse above,
shorter and still more inconspicuous than in the preceding and more distinctly
brown in the elytral series, except toward suture and base, more separated
beneath; beak (¢) similar, a little longer than the head and prothorax, the
antenne scarcely visibly behind the middle; prothorax shorter, a third
wider than long, the slightly converging sides very feebly arcuate, rounding
in about apical third, the apex fully half as wide as the base; punctures as
in the preceding but distinctly coarser, similarly separated by half their
diameters; elytra relatively shorter and broader, with more oblique sides,
only a fifth or sixth longer than wide, the grooves very deep, two-thirds as
wide as the intervals, which have the close uniseriate punctures coarser.
Length 2.8 mm.; width 1.35 mm. Brazil (Santarem). One specimen.

sulcatulus n. sp.

Body short, oblong-oval, narrower and less inflated than the preceding, deep black, .
rather shining, the legs rufous; squamules above yellowish-white, very sparse
on the pronotum, somewhat glistening in single loose series on the elytra,
rather small and separated beneath; beak (<) arcuate, dull and longer than
the head and prothorax, the antenne obscurerufous, medial; prothorax a
fourth wider than long, nearly as in the preceding in outline,the sides more
parallel; punctures similarly coarse, somewhat more separated but on the whole
by scarcely more than half their diameters, the median smooth line more dis-
tinct; elytra a sixth longer than wide, broadly oval, the sides more rounded
and less oblique than in sulcatulus, a fifth wider and one-half longer than
the prothorax, the grooves much less coarse, half as wide as the intervals,
which have the serial punctures not quite so coarse; prosternal spines short
in the type, barely longer than the femoral thickness. Length 2.5 mm.;
width 1.2 mm. Brazil (Para),—Baker. [Limnobaroides bakert Csy.,—
Meni Col TXnp dos ali: sere hee cere eee Catan net eee bakeri Csy.

Body smaller than in sulcatulus and not so broadly oval, black, rather shining;
squamules slender, sparse on the pronotum, yellowish to whitish, distinct
throughout and pale in the interstitial series; beak slender, somewhat longer
than the head and prothorax, the head and beak missing in the only male at
hand; prothorax slightly wider than long, the sides feebly converging and
very slightly arcuate, rounding apically to the rather abrupt and short
tubulation, which is half as wide as the base ( @), a little less (c”); punctures
coarse, deep and dense, very narrowly separated; medial smooth line narrow,

BRAZILIAN BARINE 353

feeble and partial in both sexes; elytra short, oval, only a little longer than
wide, slightly wider than the prothorax and one-half (<) to two-thirds (2)
longer; grooves deep, two-thirds as wide as the intervals, which have strong
and rather close-set punctures in single series; male abdomen with a large
flattened subglabrous basal area, which is minutely, densely punctate, the
prosternal spines very slender, curving upward, testaceous and three-fourths
as long as the prothorax. Length 2.3-2.65 mm.; width 1.0-1.25 mm.
Brazilk(Santarem) peor specimenst isa soe meine ae rivularis n. sp.

The above constitute probably a rather small proportion of all
the Brazilian species of this very characteristic neotropical genus.
They occur in flowers of various species, and, as a rule, are well
differentiated specifically.

In view of the identity of Limnobaroides with the present genus,
my remarks (Mem. Col. IX, p. 494) are irrelevant, as the Limno-
baroides of Champion is a Madarid and not a Barid.

Groatus n. gen.

The body in this genus is small, usually subcuneiform, convex
and partially squamulose, the prothorax large and subinflated.
The beak is moderately long, cylindric, feebly arcuate and longitu-
dinally sculptured—even in the female—and not separated by a
distinct impression, the mandibles small, more dehiscent and straight
on their inner edges. The antenne in the type are slender, sub-
medial, the first two funicular joints elongate, together about equal
to the rest, the second the shorter, the seventh only a little thicker,
pubescent, coronate at apex and longer than wide, the club about
as long as the three preceding joints, oval, not very abrupt and with
fine and feeble sutures. The prosternum is large, flat, very re-
motely separating the coxe and, in the male, has two short sub-
porrect spines, midway between coxe and apex, less widely sepa-
rated than the coxe and without intermediate depression of any ~
sort. The legs are moderate, the anterior slightly longer and with
short arcuate diverging tarsal claws, the anterior tibiz fimbriate
within in the male. The prothorax hasa small and feeble tubulation
and small rounded basal lobe, the scutellum well developed, sub-
quadrate and moderately free and the elytra very moderately
grooved; the pygidium is very small, wider than long. The two
known species are as follows:

Body cuneiform, convex, opaque, black throughout, the yellowish squamules
above very minute and sparse throughout and in single interstitial lines,
but they are large and dense at the base of all the intervals between the
scutellum and the feebly marked humeri; beneath, they are minute and
sparse, but larger and closer on the metasternum and especially on the met-
episterna; beak (co) moderately slender, feebly and evenly arcuate and
half as long as the body, the antennz exactly medial, piceous and slender;
prothorax almost circular, very little wider than long, the parallel sides

T. L. Casey, Mem. Col. X, Oct. 1922.

354 MEMOIRS ON THE, COLEOPTERA

strongly and evenly arcuate, much wider at the middle than at base; tubu-
lation distinctly less than half as wide as the base; punctures fine, shallow,
well separated and very evenly distributed throughout, but with a smooth
though equally opaque median line; elytra three-sevenths longer than wide,
the oblique sides very feebly arcuate, the apex subevenly rounded, not quite
as wide as the widest part of the prothorax and but little over one-half
longer; sculpture peculiar, the grooves moderate, shallow, with minute
rugulosity and minute distant punctures, half as wide as the intervals,
which are flat, with the same dense rugulosity as the grooves, except along
the narrow smooth shining edges, and having, along the middle, a single
series of fine and well separated punctures; pygidium very short and trans-
verse, continuous in convexity with the abdomen; male abdomen very feebly
impressed along the median line basally, the first suture wholly obsolete
medially; prosternal spines slender, arcuate and diverging, one-half longer
than the femoral thickness in the type. Length 2.8 mm.; width 1.15 mm.
Brazil (Chapada). November. One specimen............. roticollis n. sp.
Body almost similarly cuneiform and convex, rather less opaque, black, the legs
and elytra rufous; yellowish squamules above minute and remote, but large,
though sparse, at the sides of the pronotum and few in number at base of
the discal strial intervals; beneath they are large toward the sides of the
meso- and metasternum; beak (co) nearly similar but much shorter, only
as long as the prothorax, the mandibles similar, the antenne medial, very
different in structure, shorter, the first funicular joint as long as the next
three, which are short and equal, the seventh transverse, the clubas long as the
four or five preceding joints, oval, with its first segment fully half the mass;
prothorax somewhat longer than wide, inflated, the parallel sides strongly and
evenly arcuate, much wider at the middle than at base, the non-tubulate
apex half as wide as the base; punctures small and sparse, coarser at the
sides, the median line similar; scutellum very free, obtrapezoidal; elytra
similar in outline and relationship with the prothorax, but barely one-half
longer than the latter; grooves coarser toward base, the intervals nearly
similar, but not so densely opaque, the minute serial punctures scarcely
evident; male characters almost similar, the prosternal spines a little longer
and straighter; pygidium very short and transverse. Length 2.3-2.6 mm.;

width 0.9-1.0 mm. Brazil (Chapada). October. Two specimens.
rufipennis n. sp.

As will be seen in comparing these descriptions, there are two
distinct subgenera involved, having notably different antennal
structure, though almost entirely homologous otherwise. The
pygidium is much more evident in the female and vertical, though
small and transverse, and the female is larger than the male. The
opacity of the pronotum in both species is produced by a very
close-set system of extremely minute punctules, as in Camerones
and several other unrelated genera.

Palistes n. gen.

Here the body is quite different, being broadly oblong and
depressed, highly polished and wholly glabrous. The beak is
shorter, smooth, cylindric, nearly straight, feebly arcuate distally
and simply finely punctate, separated by a very feeble impression,

BRAZILIAN BARINZ 355

which has a median puncture; the mandibles are non-decussate
and rather short, but forming an angle when closed. Antenne
slightly behind the middle, moderate, the first two funicular joints
moderately elongate and between two and three times as long as
wide, the outer joints slightly transverse, the club small, oval, not
as long as the three preceding joints, with its first segment glabrous
and polished. The prosternum is large, flat, very remotely sepa-
rating the coxe and having, in the male, two short and rapidly
acuminate spines, subporrect, nearly at the extreme apex and
separated by a broad and feeble, simple concavity of the surface.
The legs are rather short, the anterior (o”) only a little longer, the
tibiz not fimbriate, the tarsal claws moderate, slender, free and
evidently diverging, the anterior femora with a short obtuse inferior
tooth far beyond the middle. The prothorax is narrowly and
feebly tubulate, the small short basal lobe deeply sinuate, the
scutellum well developed, free and subquadrate and the elytra
strongly grooved. The pygidium is moderate in size, slightly
oblique, wider than long and prominent along the middle, at least
in the male. The single species now known is the following:

Palistes oblongatus n. sp.—Oblong-oval, depressed, polished and deep black
throughout; beak (<) four-fifths as long as the prothorax, the antennz almost
glabrous, piceous in color; prothorax scarcely a sixth wider than long, the parallel
sides broadly, evenly arcuate, rather rapidly rounding and oblique in about
apical third, the tubulation scarcely two-fifths as wide as the base; punctures
very fine and sparse, rapidly stronger and closer at the sides and, especially,
coarser and denser antero-laterally; elytra short, only very little longer than
wide, obtusely oval, with reéntrant sutural angle, barely visibly wider than the
prothorax and only two-fifths longer; grooves very coarse, deep and punctured
at the sides, but much finer discally, the intervals smooth, remotely and infini-
tesimally punctulate; male abdomen very short, strongly convex, minutely
punctulate and sexually unmodified; sterna coarsely, loosely punctate; prosternal
spines a little longer than the femoral thickness. Length 4.3-4.35 mm.; width
1.8-1.9 mm. Brazil (Santarem). Two male specimens.

Easily identifiable by the oblong flattened form and apical
position of the porrect male prosternal spines.

Zalinus n. gen.

In some respects this genus is related to Palistes, especially in its
parallel polished black depressed body, which is however much nar-
rower, and in the inflated and generally obtusely inferiorly dentate
anterior femora in both sexes, but the mandibles are arcuate, deeply
bifid and decussate, the beak of different habitus and the prosternum
always unarmed in the male. The beak is short, very thick and
compressed in the male, but much longer, thinner and thickened
and compressed only at base in the female; antenne short, thick,

356 MEMOIRS ON THE COLEOPTERA

distinctly beyond the middle (o”) or near two-fifths (9), the scape
virtually attaining the eye, long in the male, the first funicular
joint as long as the next two, 2—7 short, compact, transverse and
gradually increasing in width, the club large, oval, densely pubescent
throughout, as long as the preceding six joints, at least in the male,
and subequally divided by the deep and conspicuous sutures. The
prosternum is large and with even surface, remotely separating the
coxe and wholly unarmed in the male. The legs are moderate, the
femora somewhat inflated, the anterior not longer in the male but
with more strongly inflated femora, with or without a blunt oblique
asexual inferior tooth in both sexes, the tarsal claws moderate
and divergent. The prothorax is feebly tubulate, the basal lobe
very short and evenly rounded, the scutellum well developed, flat,
transversely suboval, free at the sides but in close contact with the
elytra behind; elytra with the grooves much diminishing in strength
internally, as in the preceding genus. The species at hand are
four in number as follows:

Anterior femora with an oblique truncate tooth beneath in both sexes......... 2
Anterior femora with the lower margin of the inflation angularly dentiform... .3
Anterior femora strongly medially swollen, but not at all dentate beneath...... 4

2—Body parallel, feebly convex, with feebly tumid humeri, somewhat more
abbreviated in the female, deep black throughout, polished and glabrous;
beak (o) thick, feebly arcuate, compressed, finely, loosely punctate and
much shorter than the prothorax, or (@) longer, slender, cylindric, smooth,
dilated, compressed and with the flat sides impressed behind the antenne,
a little longer than the prothorax; piceous antenne as described above,
prothorax as long as wide, a little wider (9), the parallel sides straight (<’),
feebly arcuate (@), rapidly rounding and converging in about apical third
to the tubulation, which is rather more than half as wide as the base; punc-
tures gradually stronger but not coarse, closer and subrugulose toward the
sides, finer and denser in the female; elytra somewhat more (<”) to less (9? )
than one-half longer than wide, the sides only just visibly oblique, gradually
circularly rounding at apex, very little wider than the prothorax and three-
fourths longer; grooves coarse and exarate at apex, fine and punctulate on
the disk suturally and deep but not very coarse laterally; intervals smooth,
loosely and infinitesimally punctulate; male abdomen strongly and closely
punctate, more finely and densely on the last three segments, feebly impressed
medio-basally. Length 3.8-4.0 mm.; width 1.4-1.6 mm. Brazil (Santa-
FEIN). hOULE! SPEChIENS.- setae ae Eee ee ee eon femoralis n. sp.
Body broader, feebly convex, deep black and polished, feebly subcuneiform, the
prothorax larger; beak (o) nearly similar but a little longer, four-fifths as
long as the prothorax; antenne blackish, nearly as in the preceding; pro-
thorax as long as wide, the parallel sides evenly and very evidently arcuate,
gradually rounding in about apical third, the tubulation longer and more
sharply marked, not quite half as wide as the base; punctures minute and
sparse, gradually more distinct and longitudinally ruguliform laterally, but
not at all coarse, much finer than in the male of femoralis; elytra shorter,
less than one-half longer than wide, more broadly and obtusely rounded at
apex, with still more feebly marked humeral swelling, not quite as wide as
the prothorax and scarcely one-half longer; grooves throughout nearly

BRAZILIAN BARINZE 357

similar; male abdomen finely, densely punctate throughout, the meta-
sternum less coarsely and more densely punctate than in the preceding;
sexual modifications not noticeable; pygidium similarly small, vertical and
transversely suboval. Length 4.2 mm.; width 1.7mm. _ Brazil (Santarem).
One male specttrem eet oe ce ose eee ee es thoracicus n. sp.
3—Body much smaller than in either of the preceding, but nearly similar in
general form, color and lustre; beak very thick, barely arcuate, compressed,
shining and distinctly shorter than the prothorax, which is not quite as long
as wide, the parallel sides evenly and feebly arcuate, gradually rounding in
about apical third to the distinct tubulation, which is more than half as wide
as the base; punctures fine but not quite so minute, sparse, gradually very
little less fine, slightly closer and longitudinally ruguliform laterally; elytra
about one-half longer than wide, parallel, obtusely and circularly rounding
behind, with almost obsolete humeri, not wider than the prothorax and
three-fourths longer; grooves throughout nearly as in femoralis; first ab-
dominal segment coarsely but shallowly punctate, the second more finely,
the last three finely and still more densely punctate, the sterna somewhat
coarsely punctate, the inferior thoracic flanks more deeply, longitudinally
rugulose than in either of the preceding; abdomen feebly impressed at the
middle of the base in the type. Length 3.0 mm.; width 1.18 mm. Brazil
(Santarem). One male specimen........--....+++++++++-5 parvulus n. sp.
4—Form elongate-subparallel or feebly ovulate, rather more convex, similar in
color and lustre; beak (<7) rather less thick and more arcuate, fully as long
as the prothorax, less compressed and with the antenne but little beyond
the middle and blackish; prothorax a fifth wider than long, the sides parallel
or nearly so, and straight beyond the middle, gradually more strongly
rounding to the tubulation, which is somewhat more than half as wide as
the base; punctures minute and sparse, gradually more distinct and longi-
tudinally rugulose toward the sides, but not at all dense; elytra three-fifths
longer than wide, with just visibly oblique and very feebly arcuate sides,
gradually rounded apex and distinctly tumid humeri, very slightly wider
than the prothorax and nearly twice as long, the grooves throughout nearly
as in femoralis, except that the inner ones become basally simple series of
well spaced punctures; male abdomen without sexual modification, very
gradually more finely and densely punctate from base to apex. Length
3.65-3.9 mm.; width 1.4-1.6 mm. Brazil (Santarem). Two male speci-
ANS MSc co Aloe Oke Se Oe One ISIS Renn ene a colo tao cae canyokcionc parallelus n. sp.

No information is recorded concerning the habits of these species,
which, though adhering to a common external habitus, are clearly
distinct among themselves.

Anazalinus n. gen.

The type of this genus is a very small, exactly parallel and
subcylindric, polished black and glabrous species, allied to the
preceding in many features, but differing quite radically in others.
The beak is short, rather thick, feebly arcuate and evenly cylindric,
not at all compressed, smooth and not separated from the front by
a distinct impression, although there is a median puncture as in
Zalinus, and the mandibles are also similar. Antennz medial, short
and rather thick, the first funicular joint as long as the next two,

. 358 MEMOIRS ON THE COLEOPTERA

the outer joints gradually wider, compactly joined, the club large,
oval, as long as the preceding six joints and subevenly divided by
the feeble sutures. The prosternum is even, and separates the
coxe by one-half more than their width, being much less remote
than in the preceding. Legs short, the intermediate smaller than
the posterior, the anterior femora oval and compressed, not dentate,
the tarsi small and slender, the last joint rather longer than all the
rest, the claws long and arcuate. The prothorax is not in the least
tubulate at apex, the basal lobe very small and deeply emarginate,
the scutellum small, very free, obtrapezoidal and rounded at apex,
and the elytra deeply grooved throughout, the grooves not coarse
and exarate apically as in Zalinus, and the pygidium is wholly
different, being very large and transversely oval, subvertical in the
type. The only known species is the following.

Anazalinus nanus n. sp.—Cylindric and rather convex, polished, black through-
out; beak shining, finely punctate, evenly arcuate and only two-thirds as long
as the prothorax, the antenne piceous; prothorax as long as wide, the subparallel
sides very moderately and evenly arcuate, rounding more strongly but gradually
anteriad to the extreme apex, which is truncate and slightly more than half as
wide as the base; punctures fine and sparse medially, gradually less fine and a
little closer laterally, but not longitudinally rugulose, the inferior flanks not
rugulose as in the preceding genus but clearly and discretely punctate; elytra a
fourth longer than wide, parallel and straight at the sides, rapidly and very
obtusely rounded at apex, without trace of humeral swelling, exactly equal in
width to the prothorax and not quite one-half longer; grooves deep, a little
coarser laterally but not apically; intervals flat, with single serjes of minute but
evident punctures; abdomen very obtuse at apex, distinctly punctured, not
sexually modified in the type and with the first suture evident throughout.
Length 2.3 mm.; width 0.85 mm. Brazil (Santarem). One specimen.

The sex of the type is not clearly determinable without dissection,
but would appear to be female.

Myelantia n. gen.

In this singular genus the body is oblong-oval, much depressed,
opaculate and sparsely bristling with erect stiff sete. The beak is
nearly straight, not separated by a distinct impression and is
parallel and distally flattened, being rather thin in profile, and the
mandibles are non-decussate and straight within. The antennez
are medial, the scape almost attaining the eye, the first two funicular
joints elongate, together not quite as long as all the rest, the outer
joints but slightly broader, not very compactly joined and the club
small, stout, oval, about as long as the three preceding joints
and finely pubescent, with distinct sutures, the basal segment more
than half the mass and glabrous at base. The under surface is flat,
but broadly impressed along the middle of the prosternum and more

BRAZILIAN BARINZE : 359

strongly in basal half of the abdomen; the prosternum, with its
broad shallow impression, can scarcely be said to be canaliculate,
though the impression is limited along the sides by feeble tumidity
clothed with denser squamules. The hind margin is broadly trun-
cate, abutting closely against the mesosternum, and the coxe are
separated by nearly one-half more than their width. The legs are
well developed, the femora all much swollen and bristling with
erect sete, the fourth tarsal joint much longer than all the rest,
with well developed diverging claws. The prothorax is briefly
tubulate, the basal lobe small and rounded, the scutellum free,
obtrapezoidal and truncate, the elytra deeply grooved, the grooves
somewhat coarser and more impressed apically, and the pygidium
small, short, transverse and hairy. The two species are as follows:

Body depressed, alutaceous, dark piceous-brown, with obscurely rufous legs;
beak three-fourths as long as the prothorax; antenne in both sexes medial,
the outer funicular joints transverse; prothorax (<’) fully as long as wide,
the sides in basal half straight and parallel, thence gradually evenly rounding
to the tubulation, which is much less than half as wide as the base, or ( ? )
evidently shorter than wide, the sides anteriorly more strongly rounding, the
tubulation subequal to half the basal width; punctures bearing the erect
setz rather strong and sparse, intermingled with fine and less remote punc-
tures, the surface feebly rugulose laterally; elytra one-half longer than wide,
or less (o), oval, with distinct humeral swellings and reéntrant sutural
angle, evidently wider than the prothorax and three-fourths longer; grooves
not coarse but deep, punctate, a fourth as wide as the flat intervals, which
have single series of small and well separated punctures, bearing stiff erect
yellowish sete. Length 4.0-4.6 mm.; width 1.75-2.05 mm. Brazil (San-
EGET) HAMM W ORS DECIIMENS etn. 5 teers ay =e atte steer onacuee ee hispidula n. sp.

Body almost similar throughout but a little larger, the outer joints of the antennal
funicle less transverse and larger; prothorax in the apparently male type
shorter, not quite as long as wide, similar in form and sculpture but with
the tubulation somewhat wider, though much less than half as wide as the
base; elytra similar, but with the grooves a little coarser, almost a third as
wide as the intervals, the remote uniseriate punctures of which are somewhat
stronger; under surface nearly similar, the femora more inflated and with
the erect bristling sete sparser. Length 4.7 mm.; width 2.15 mm. A
sinelesspecimen. probably, tromupbaras. se. sarees a ase 8: setosula n. sp.

Sexual differences seem to be extremely feeble, the broad basal
impression of the abdomen being asexual, if I have correctly iden-
tified the female, which is much smaller than the male. Setosula
is founded upon a specimen which was without locality label in the
Levette collection, and it, as well as the type of WNotesia latior,
which had the same status, were both quite mysterious to me, until
their analogues were discovered in the Smith Amazonian material.

It is highly probable that Myelantia is allied to the Panaman
Calandromimus of Champion, but in that genus the mandibles are
slightly decussate, the scutellum large and transversely subquadrate,

°

360 MEMOIRS ON THE COLEOPTERA

the pygidium entirely covered and the body partially squamose
but not setulose.
Hulpes n. gen.

In this genus and the next the body is fairly large for the present
subfamily, elongate-oval, smooth, black and glabrous, excepting the
small subscutellar condensations of Hulpes. The beak here is
notably thick, compressed, strongly arcuate and strongly punctured,
separated from the head by an evident impression and with arcuate
decussate mandibles; the:channel at the sides, beyond the antenne
is very deep and distinct. Antennz medial, with coarse and deep
scrobes, the scape not attaining the eye, the first funicular joint as
long as the next two, the second twice as long as wide, the following
subquadrate, gradually broader, the seventh as wide as the club,
which is broadly and obtusely oval and about as long as the three
preceding joints, its basal segment not quite half the length. The
prosternum is peculiar, being strongly tumid before the coxe; its
anterior slope is rapidly upward, and the canaliculation is broad,
sharply limited at the sides but extremely shallow, so that its
convex bottom along the middle attains the level of the side margins,
which flare posteriorly toward the coxe, these being large and
separated by rather more than their own width. The legs are well
developed, the femora subparallel, the middle and posterior feebly
dentate beneath, the terminal tibial spur very strong and the tarsi
long, with only feebly dilated rounded third joint, the claws moder-
ate and slender. The prothorax is tubulate at apex, the basal lobe
very small but narrowly rounded at tip, the scutellum free, trans-
verse, arcuate at base and truncate at apex, the elytra with the
rather fine grooves not exarate at apex, although coarser at tip, and
the pygidium relatively small and vertical. The type is the
following:

Hulpes tumidipectus n. sp.—Elongate-oval, strongly convex, shining, smooth,
deep black throughout, completely glabrous, excepting in a small area of dense
narrow whitish squamules at the base of the third interval; beak () thick,
strongly and closely punctured, compressed, slightly alutaceous and a little longer
than the head and prothorax, the antenne blackish; prothorax slightly longer
than wide, the sides feebly converging, very evenly and moderately arcuate from
base to the tubulation, which is feebly medially sinuate and about half as wide
as the base; punctures fine, well separated, very gradually though moderately
coarse and subsimilarly separated toward the sides; elytra three-fifths longer
than wide, the feebly oblique sides slightly arcuate, rapidly obtuse at apex, the
humeri somewhat tumid, somewhat wider than the prothorax and two-thirds
longer, the grooves smooth and abrupt but scarcely a sixth as wide as the intervals,
which are very minutely, sparsely punctate along the middle; under surface
coarsely punctate, the femora and abdomen sparsely and less coarsely, the latter
broadly impressed medio-basally and with the first suture distinct throughout.
Length 7.6 mm.; width 3.18 mm. Mexico (Puebla). One specimen.

BRAZILIAN BARINZ . 361

Although foreign to the fauna at present under investigation,
this genus is introduced here for comparison, because of its very
exceptional structural characters. I cannot identify it with any
of the allies of Madarus hitherto discussed, but Madarus eutoxotdes
and tumefactus of Champion, belong without doubt to this genus.

Madaropsides n. gen.

The body in this genus is of somewhat similar general form and
smooth and polished, entirely glabrous integuments, but the pro-
thorax is shorter, the beak more slender and the antenne quite
different. The beak is evenly and rather strongly arcuate, and
tapers gradually and strongly from base to apex in the three speci-
mens of the type species at hand, which are probably females; it is
compressed basally, somewhat flattened distally and separated from
the head only by a very broad and shallow reéntrant angle, the
mandibles rather thick, not dehiscent, their inner margins straight
but feebly denticulate. Antennz medial, the scrobes narrow, the
scape far from attaining the eye, the first funicular joint notably
elongate, as long as the next four joints, the second obconic, one-
half longer than wide, the following compactly joined, transverse
and increasing in width, the seventh as wide as the base of the club,
which is thick, oval and scarcely longer than the three preceding
joints, with its first two segments subequal. The rugosely punc-
tured prosternum has a deep, parallel and sharply defined smooth
canal, extending from the apical margin to the intercoxal suture,
the coxe large and separated by their own width. The femora are
long, mutic and not dilated, the tibiz much shorter, with very
slender apical spur and the tarsi longer than the tibize and with
slender, moderate claws. The prothorax is briefly and broadly
tubulate, the basal lobe well developed, rapidly formed and evenly
rounded at tip, the scutellum moderate, slightly free, semicircular
and truncate at base, the elytra finely, obsoletely striate, not
exarate at apex and the pygidium semicircular, vertical and umbo-
nate at the middle in the type. The species are as follows:

Antenne as described above. Beak smooth and polished, loosely punctured on
the compressed sides basally, about as long as the head and prothorax, the
lateral groove beyond the antenne very short and feeble; antenne piceous;
prothorax a fourth wider than long, the feebly converging sides broadly and
very slightly arcuate, rapidly rounding apically, the tubulation truncate
throughout and broad but not quite half as wide as the base; punctures very
fine and sparse throughout, almost obsolete medio-basally; elytra three-
fifths longer than wide, the slightly oblique sides feebly arcuate, the apex
obtuse, with broadly reéntrant sutural angle, the humeri with large rounded
swelling, a fifth wider than the prothorax and not quite twice as long; sub-
apical umbones distinct; striz very fine and subobsolete, more distinct

362

e MEMOIRS ON THE COLEOPTERA

apically, the punctures small but very distinct; intervals wide and smooth;
propygidium finely, densely punctate, medially carinate, the pygidium large,
more coarsely and loosely punctate, vertical, semicircular and with a strong
submedial umbo; abdomen minutely and remotely punctulate. Length
7.9-8.0 mm.; width 3.7-3.75 mm. Brazil (Rio de Janeiro). Three speci-
MITSUI G4) 2 wish Vi ages Seah REEL ALT, AML Sd eee eek atrolucens n. sp.

Antenne more slender, the first funicular joint less elongate, about equal to the

next three, the outer joints barely at all wider, the club much more abrupt.. 2

2—Pygidium small, vertical, semicircular, coarsely, densely punctate and medially

carinate. Body oval, convex, deep black, smooth and polished; beak (2 )
as long as the head and prothorax, slender, slightly flattened distally, nearly
straight and smooth, rapidly very thick and strongly compressed, arcuate
and with the flat compressed sides alutaceous and finely, sparsely punctate
behind the antennz, which are piceo-rufous in color and behind basal third;
prothorax a third wider than long, the evidently converging sides straight,
gradually circularly rounding from slightly beyond the middle to tubulation,
which is similarly evenly truncate and half as wide as the base; surface
almost impunctate, except minutely and sparsely at the sides; scutellum
similar but in closer contact with the elytra, the latter but little over a third
longer than wide, obtusely oval and slightly undulated, with prominent
subapical umbones and tumid humeri, a fifth wider than the prothorax and
twice as long; grooves narrow but sharply defined and deep, only the first
becoming a series of small punctures toward base; abdomen finely, remotely
punctulate, the first suture very distinct. Length 5.2 mm.; width 2.6 mm.
Brazil (Rio de Janeiro). October. One specimen............ minor n. sp.

Pygidium in both sexes more elongate, oblique, strongly rounded and slightly

tumid at apex, with the surface even and closely but discretely punctate.
Body more narrowly oval, convex, polished, black and smooth; beak (<)
thick, moderately arcuate, compressed and punctulate basally and four-
fifths as long as the prothorax, or more, the antennz blackish, submedial in
both sexes; prothorax a third wider than long, the sides distinctly converging,
feebly arcuate, more rapidly rounding anteriad to the tubulation, which is
half as wide as the base, or somewhat less; surface smooth, feebly punctate
at the extreme sides; scutellum as in minor; elytra oval, three-fifths longer
than wide, with moderately swollen humeri and very moderate umbones,
barely at all wider than the prothorax and nearly twice as long; striz very
fine, obsolete and punctulate, becoming gradually deep and sharply defined
impunctate grooves laterally, somewhat exarate at tip; intervals smooth;
under surface almost similar; abdomen without sexual modification; pro-
sternum similarly sinuate at the posterior margin. Length 5.2-5.6 mm.;
width 2.3-2.4 mm. Brazil (Santarem). Three specimens... obsidianus n. sp.

As can be perceived readily, there are two distinct structural
types among the above three species, which constitute in all proba-
bility two subgeneric groups.

Stenohulpes n. gen.

The body in this genus is parallel, strongly convex, smooth,
polished and glabrous. The beak rather slender, cylindric, not
separated from the head, the mandibles thick, arcuate, deeply bifid
and decussate. Eyes large, separated on the front by somewhat
less than the width of the beak; antennz medial, somewhat slender,

BRAZILIAN BARINE 363

the first funicular joint as long as the next two or three, the outer
joints slightly enlarged, the club long, oval, densely pubescent, as
long as the preceding six joints and subevenly divided by deep
sutures. Prosternum sharply and deeply canalate, the coxa sepa-
rated by less than their own width. The legs are moderate and
normal, the femora mutic, finely punctate and with rather close
fine white squamules, the tibial spur well developed and the tarsal
claws strong and diverging, the claw-joint fully as long as the rest
of the tarsus. Prothorax not distinctly tubulate, but broadly
impressed throughout the width anteriorly, the basal lobe small,
short and truncate, the scutellum transverse, broadly angulate behind
and somewhat free, the elytra with extremely fine, subobsolete
strie, not exarate at apex and wholly without subapical umbones;
the pygidium is small, flat, transverse and strongly rounded at the
middle beneath. The type and only known species is the following:

Stenohulpes perpolitus n. sp.—Parallel, strongly convex, smooth, deep black
and highly polished, wholly glabrous above, each coarse puncture of the posterior
sterna with a narrow white squamule; beak ( @ ) rather slender, evenly cylindric,
finely, sparsely punctate and shining, feebly, evenly arcuate and a little longer
than the head and prothorax; antenne ferruginous; prothorax fully a fourth
wider than long, the parallel sides very feebly arcuate, rapidly rounding and
oblique between apical third and fourth, the apex almost three-fifths as wide as
the base; punctures obsolete, fine and loose but evident on the feebly constricted
apical part, the inferior flanks loosely and feebly subrugose; elytra three-sevenths
longer than wide, equal in width to the prothorax and three-fourths longer, the
parallel sides nearly straight, rounding from somewhat behind the middle, the
humeri only just visibly swollen; striz subobsolete, extremely fine and barely
traceable but finely punctulate, the first stria stronger but shallow, punctulate;
abdomen convex, polished, glabrous and very minutely, sparsely punctate, more
distinctly at the sides, the first suture distinct, only very feebly arcuate. Length
3.4 mm.; width 1.35 mm. Brazil (Santarem). One example.

If I have correctly determined the sex of the type, the male must
have the eyes still larger and more approximate on the front.

; Sirabia n. gen.

The type of this genus approaches Madarellus in some respects,
such as the abbreviated form and strongly undulated elytra, but it
is not very closely allied. The integuments are glabrous, but in
great part conspicuously punctate. The beak is rather thick but
uncompressed, finely, evenly punctate and moderately arcuate,
separated by a shallow reéntrant angle and with arcuate and bifid,
decussate mandibles; antennz medial, the first and second funicular
joints moderately elongate, the second the shorter, the others short,
glabrous, gradually more transverse distally, the club oblong, trun-
cate at base, ogival at apex, subequally divided by the sutures,

364 MEMOIRS ON THE COLEOPTERA

densely pubescent, with glabrous basal margin and as long as the
preceding five joints. The prosternum is shallowly and not abruptly
canalate, the coxe separated by but little more than their own
width, and the legs slender and with mutic subglabrous femora,
and the fourth tarsal joint longer than the remainder, with strong
diverging claws. The prothorax is extremely briefly subtubulate,
the basal lobe large and strongly, evenly rounded, the scutellum
small, transversely sublunate and free, and the elytra are abruptly,
deeply grooved, very coarsely exarate behind the middle, with
distinct subapical umbones and broadly tumid humeri. The
pygidium is small, transverse and divided by an entire transverse
ridge, the upper part oblique, the lower vertical. The type is
as follows:

Sirabia undulata n. sp.—Shining, convex, glabrous, piceous, with strong zneous
lustre; beak .subsimilar in the sexes, cylindric, thick, finely, loosely punctate, as
long as the head and prothorax, slightly longer in the apparent female, the antennz
ferruginous; prothorax short, fully four-fifths wider than long, the sides strongly,
subevenly arcuate, gradually becoming parallel toward base, the truncate apex
only two-fifths as wide as the base; punctures rather small but strong and deep,
separated by their own diameters, a little stronger, denser and longitudinally
rugulose at the sides and becoming obsolete medio-basally; elytra a fourth to
third longer than wide, oval, with the sides feebly sinuate near the medially
obtuse apex, a fifth or sixth wider than the prothorax and two and one-half
times as long; grooves moderate, coarse and punctate laterally, coarsely exarate,
with prominent intervals posteriorly, the ee, HE flat internally before the
middle, cariniform laterally, minutely, loosely and confusedly punctulate, the
surface very conspicuously undulated; abdomen convex, in great part very
smooth and subimpunctate. Length 3.8-4.25 mm.; width 2.0-2.4 mm. Brazil
(Santarem). Seven specimens.

Either sexual differences are wholly undeveloped, or my material
is entirely female; it is not practicable however to state anything
definitely without dissection.

Rytonia n. gen.

This and the next are singularly aberrant genera, having a small
oval convex and in great part glabrous shining body and apparently
very feebly marked sexual characters. The beak is short, rather
thick, feebly arcuate, evenly tapering and strongly compressed,
with flat sides, separated by only the feeblest narrow impression and
with bifid decussate mandibles. The antenne are at apical third
(2) or slightly beyond (@), with long scape, the first funicular
joint longer than the next three, the second one-half longer than
wide, the others short, transverse and rather compact, increasing in
width, the seventh as wide as the truncate base of the club, which is
elongate-oval, densely pubescent, with fine sutures, as long as the

BRAZILIAN BARINZ 365

preceding six joints and with its basal segment not quite half the
length. The prosternum is evenly and feebly convex, deeply,
transversely constricted near the apex, with its hind lobe flat and
quadrate, attaining the mid-line through the middle coxe, the surface
therefore being continuous throughout, but the anterior coxe are
separated by only about half their width. The legs are moderate
and somewhat slender, the femora mutic, the tibial spur short and
the tarsi moderate, with rather short diverging claws. The pro-
thorax is not, or but very faintly, tubulate, the basal lobe peculiar,
being abrupt but extremely short and broadly truncate along the
large and ogival, densely squamose scutellum, the elytra strongly,
deeply and abruptly grooved, without umbones and with even
surface, and the pygidium is well developed, subvertical and not
transverse. There are two species as follows:

Form evenly oval, convex, shining, deep black, the legs and tip of the beak
obscure rufous; upper surface glabrous, except the dense white scales of the
scutellum, which also are rather less dense at the sides of the pronotum,
the entire under surface densely clothed with white scales; beak (co) thick,
rather strongly, evenly arcuate, punctured, not quite so long as the head
and prothorax, the antenne bright rufous, or (2) barely longer, though
distinctly less thick and somewhat more shining, a little less strongly com-
pressed, the antennz a trifle less apical; prothorax nearly a third wider than
long, the sides slightly converging and feebly arcuate, gradually more
rounding beyond the middle, the apex more than half as wide as the base;
punctures rather strong and deep, separated by about their own diameters;
elytra obtusely oval, a fourth (o) toa sixth (@) longer than wide, distinctly
wider than the prothorax and less than twice as long; grooves coarse and
deep; intervals but little wider than the grooves, subequal at base; pygidium
moderately convex, larger and subcircular in the male, the latter without
trace of abdominal modification. Length 2.65-3.3 mm.; width 1.12-1.38
mm. Brazil (Chapada—forest). May and June. Seven specimens. Found
ain, Goer nies RA een oreae Sorat te atises arc scutellata n. sp.

obesella n. sp.

Scutellata varies very much in the size of the body, but not much
otherwise; obesella is closely allied, but is apparently a different
species.

Anisorrhamphus Chmp.

In outward form and habitus this genus resembles the preceding
to an extraordinary degree, being almost identical in outline,

366 MEMOIRS ON THE COLEOPTERA

sculpture, vestiture and in some special structures, but it differs in
several rather important features. In Anisorrhamphus, for example,
the antennal club is more obtusely oval, the beak deeply constricted
at basal fourth or fifth and separated from the head by a much
coarser and deeper transverse sulcus, and the basal thoracic lobe
is longer though truncate; the pygidium is much more convex and,
finally, the fourth abdominal suture is feebly reflexed at the sides;
in the preceding genus there is no trace of posterior reflexion in any
of the sutures. However, that two really distinct genera can bear
such striking resemblance to each other, one would scarcely believe
possible. The single species from our region is the following:

Anisorrhamphus mimus n. sp.—Oval, convex, shining, deep black, the legs
black, rufescent distally; squamules white, evident at the extreme sides of the
pronotum and dense on the scutellum, the large white scales dense throughout
beneath and on the legs; beak (<o”) deep shining black, thick, feebly punctulate,
compressed, distinctly arcuate and about as long as the head and prothorax, the
subbasal constriction deep; between this constriction and the base there is a
feeble and more punctured, squamulose impression of the compressed sides;
antenne a little beyond apical third; prothorax fully a fourth wider than long,
the feebly converging sides gradually a little more rounding anteriorly to the apex,
which is almost three-fifths as wide as the base; punctures coarser and deeper
than in the preceding genus, without median smooth line, the punctures separated
by nearly their own diameters; elytra oval, more rapidly rounding behind to the
somewhat obtuse apex, a fifth wider than the prothorax and four-fifths longer,
the humeri slightly prominent; grooves abrupt and deep, much narrower than
the intervals, except at base, the interstitial punctures fine but distinct, partially
confused; pygidium subhemispherical, the upper part oblique and a little flatter;
abdomen without sexual modification. Length 2.8 mm.; width 1.3mm. _ Brazil
(Chapada—forest). November. One specimen.

A comparison of this species with a specimen of sguamiventris
Chmp., from Cahabon, Guatemala, sent me by the author, shows
that mimus is slightly more rhombic, the humeri being more prom-
inent and has the pygidium somewhat smaller, but—more impor-
tant than these—the antennal scrobes are shorter and more oblique
in mimus and, on the whole, less inferior.

Tropidobaris n. gen.

This is one of the most remarkable genera of the Barine in the
structure of the beak, there being a high and abrupt dorsal keel at
base. The body is rhombiform, convex, shining, with narrow and
very sparse squamules above, and larger separated scales beneath.
The beak beyond the keel is slender; it is evenly arcuate beneath
from base to apex and only very feebly separated from the head,
the mandibles bifid and decussate. The prosternum narrowly
separates the coxe and is feebly impressed along the middle, the
impression even more densely squamose than the sides, the posterior

BRAZILIAN BARINZ 367

lobe broadly truncate at the middle coxe. The legs are moderately
long, the femora mutic. The prothorax is gradually tubulate, with
small and feeble, truncate basal lobe, the scutellum free, quadrate,
somewhat convex and very minutely, sparsely setulose in’ electa,
smaller and longitudinally sulcate in fastidiosa; the elytra have
coarse, deep and very sharply marked, moderately punctate grooves.
The pygidium is very small, vertical and is partially covered by the
elytra in the female. The two species now known are as follows:

Body moderately stout and rhombic-oval, convex, shining and deep black, the
pronotum just visibly picescent, feebly alutaceous, with a few fine squamules
at the sides of the apex, also along the basal margin at the sides and medially;
on the elytra the larger white lineiform squamules are very remotely disposed,
but are close narrowly along the suture, except posteriorly and along the
base, the intervals each with a single series of fine, dark brown squamules;
under surface throughout with broader and well separated scales; beak ( ? )
a fourth longer than the head and prothorax, evenly arcuate, the keel oc-
cupying more than basal fourth, flat at the sides‘and squamulose, the portion
beyond very slender, evenly cylindric and smooth; antenne blackish,
between basal fourth and third at the end of the keel, slender, with short
scape, the first funicular joint as long as the next two, the outer joints sub-
quadrate, the club moderate, evenly oval and abrupt; prothorax a third
wider than long, the sides evenly and strongly arcuate, becoming subparallel
only at extreme base, the tubulation rather more than half as wide as the
base; punctures rather coarse but more or less widely separated, the smooth
median line entire; elytra a third longer than wide, a fourth wider than the
prothorax and between two and three times as long, the oblique sides broadly
arcuate, the apex evenly and somewhat obtusely rounded; humeri not
prominent, obliquely rectilinear basally; grooves not quite half as wide as
the intervals, which have single series of distinct and well separated punctures;
abdomen strongly convex, the first suture distinct; pygidium small, vertical,
broadly rounded, densely punctate and half covered by the elytra. Length
4.0 mm.; width 2.0 mm. Brazil (Chapada). November. On flowers.
Grrl s PEGUTIC Tce Aint rhs sc vas Peueseveduirpmessviers te Siete aotate pest nels electa n. sp.

Body nearly similar but more slender, convex, shining and deep black throughout,
the vestiture nearly similar; beak (<7) distinctly longer than the head and
prothorax, evenly, moderately arcuate, somewhat slender beyond the keel,
strongly sculptured and partially squamulose; antennz near basal third,
shorter than in the preceding and with smaller and more narrowly oval.club,
the first funicular joint as long as the next four; prothorax a fourth wider
than long, the sides feebly convergent and scarcely arcuate, rounding ante-
riorly, the tubulation more than half as wide as the base; punctures nearly
similar; scutellum smaller, narrower and deeply channeled; elytra one-half
longer than wide, only a fifth wider than the prothorax and two and one-half
times as long, the outline somewhat as in the preceding; grooves generally more
than half as wide as the intervals, the punctures of which are more remote;
pygidium vertical, semicircular, densely punctate; fifth ventral very feebly
impressed along the median line. Length 2.8 mm.; width 1.2 mm. Brazil
(Chapada—forest). November. One Specimens: joc. 's <1. fastidiosa n. sp.

The peculiar keel-like basal crest of the beak is similar in the
sexes; its anterior end is slightly more prominent but obtuse.

368 MEMOIRS ON THE COLEOPTERA

Fastidiosa differs from electa in its much smaller size and narrower
outline, very different seg ea and markedly alternating width of
the val intervals.

Antesis n. gen.

The rhombic form of the body in this and the preceding genus,
would qualify them as typical members of the Centrinini, were it
not for the exposed pygidium. The sculpture is rather coarse and
dense, the upper surface in great part glabrous, the elytra with or
without widely isolated scales, and the under surface is squamose
throughout. The beak is rather long, slender, evenly and moder-
ately arcuate, feebly tumid above at the extreme base and. sepa-
rated from the head by a deep constriction, the antenne
medial (o’) or very slightly post-medial (@), slender, the first
funicular joint longer than the next two, the second also elongate
and about equal to the succeeding two, the club small, oval and
abrupt. The prosternum is densely squamose, scarcely at all
constricted, very feebly impressed along the middle and very
narrowly separates the coxz, the posterior lobe not very wide,
sinuate medially at tip, not quite attaining the anterior line of the
middle coxz and not forming quite so uniform a surface with the
mesosternum as in the preceding. The prothorax is not tubulate
at apex, the basal lobe small, short and rounded, the scutellum
well developed, quadrate, free and densely squamose, the elytra
with coarse deep abrupt and punctured grooves, and the pygidium
densely punctured, small, subvertical, semicircular and with the
base covered in the female. The legs are slender, the femora mutic.
The two species known thus far are as follows:

Body small, rhombic, deep black throughout, the fine interstices between the
dense punctures shining; squamules above very few on the pronotum, but
close in a short median line before the centre and larger and dense in a
conspicuous median spot at base and also on the scutellum, the strial intervals
with single series of small slender brown squamules, the general elytral
surface with some remotely scattered and very large, white scales, the latter
dense throughout the under surface, finer and separated on the legs; beak
(co) feebly arcuate, rather slender, punctured, smoother distally and more
than half as long as the body, or (@ ) still longer, more slender and smooth,
densely punctured but only slightly thickened basally and nearly two-thirds
as long as the body; antennz piceous, medial (co) or slightly post-median
(@); prothorax a third wider than long, the sides slightly converging and
barely arcuate, gradually a little more arcuate and oblique in about apical
two-fifths to the apex, which is about half as wide as the base; punctures
rather coarse, deep and very dense throughout, with a very narrow smooth
median line; elytra elliptic, a fourth longer than wide, fully a fourth wider
than the prothorax and twice as long ( @ ), a little less (co); grooves coarse,
as wide as the intervals, which have single series of coarse and slightly sepa-
rated punctures; male with an extremely feeble medio-basal abdominal
impression, which is scarcely less densely squamose. Length 2.5-2.85 mm.;

BRAZILIAN BARINZ 369

width 1.15-1.35 mm. Brazil (Chapada—forest). May. On flowers in
ClearinasameicitispeCimMensiis Gate acet te ees acs ce cee conspersa n. sp.

Body narrowly rhomboid, more convex, deep black throughout, the interstices
not quite so shining, the sculpture coarser; white squamules above wanting
on the pronotum, except in a loose median line in basal half, close on the
scutellum and in single close line on the first strial interval, the other intervals
with very small slender brown squamules; beneath, the white scales are
oval and slightly separated, but dense on the pro- and mesosterna; beak in
the type half as long as the body, feebly arcuate, slender, cylindric and
finely, sparsely punctate, gradually much thicker, compressed and strongly
punctured basally; antennz slightly post-median, piceous; prothorax a
fourth wider than long, the sides parallel and feebly arcuate basally, gradually
rounded and oblique beyond the middle to the apex, which is fully half as
wide as the base; punctures coarse, deep and almost in mutual contact,
without smooth median line; elytra a third longer than wide, a fifth wider
than the prothorax and four-fifths longer, the oblique sides only very feebly
arcuate, the apex strongly rounded; grooves very coarse and strongly
punctured, as wide as the intervals, the punctures of which, in single series,
are rather small and well separated; abdomen without distinct sexual
marks. Length 2.7 mm.; width 1.3 mm. Brazil (Santarem). One speci-
TAMER 0: 6 610 Spaces GROLIER EASED SUS A EP ere Ne Semen Se er oe sculpta n. sp.

There is reason to believe that the type of scu/pta is a male, but
it is not possible to state this conclusively.

Zyzzyva n. gen.

In this singular genus the body is oblong-oval, convex and clothed
very densely and uniformly above with parallel, ochreous: yellow
scales, those of the under surface less dense, shorter, whiter and very
narrowly separated. The beak is short, thick, rapidly but gradually
tapering distally and carinate above, not separated from the head
by an impression. The mandibles are peculiar, being large, flat
and triangular, arcuate externally, their truncate inner margin
obtusely quadridentate. Antenne slender, slightly ultra-median,
with long scape, the first two funicular joints elongate, the second
the shorter, all the succeeding joints a little longer than wide, the
club small, oval, as long as the three preceding joints, with its first
segment about half the mass. The prosternum is flat, feebly
constricted at apex, narrowly separating the coxe, its posterior
lobe not broad, bilobed at tip and extending to the tangent line of
the middle coxe, the legs simple, not very long or slender. Pro-
thorax not at all tubulate at apex, the base perfectly straight, with
a distinct and rounded, gradually formed lobe, the scutellum small,
rather free and quadrate, but wider than long and only sparsely
punctate, not densely squamose, the elytral striz moderate and the
pygidium vertical, as long as wide, evenly and feebly convex and
with its apex bilobed. The type is as follows:

T. L. Casey, Mem. Col. X, Oct. 1922.

370 MEMOIRS ON THE COLEOPTERA

Zyzzyva ochreotecta n. sp.—Rather broadly oblong-oval, convex, densely
clothed with scales, ochreous and very uniform above, completely concealing the
sculpture; beak (<”) scarcely longer than the prothorax, thick, distinctly arcuate,
compressed basally, finely, closely punctate, longitudinally furrowed and carinate
above; antennz obscure rufous; prothorax two-fifths wider than long, the sides
parallel and nearly straight in basal two-fifths, thence oblique and nearly straight
to the apex, which is truncate and much less than half as wide as the base; parallel
scales dense and directed longitudinally in great part; elytra a third longer than
wide, a fifth or sixth wider than the prothorax and nearly two and one-half
times as long, the sides parallel, broadly, circularly rounded in apical third, the
sutural angle not reéntrant; pygidium closely but not densely clothed with slender
and suberect pale squamules; under surface without sexual mark, the first ventral
suture fine but very distinct throughout, the others coarse, the fourth not reflexed
at the sides. Length 4.3 mm.; width 2.0 mm. Brazil (Santarem). One specimen.

Nothing else known at present approaches this genus closely in
general habitus, except the next in some features.

Polpones n. gen.

The body is here very elongate and convex, somewhat as in
Loboderinus, and the beak is reminiscent of that genus, being thick
in the male, with the antenne near apical third, but the resemblance
extends scarcely further. The beak is rather short and evenly
arcuate, strongly, longitudinally sculptured and not separated from
the head by an impression, the mandibles somewhat sharp and bifid
but prominent when closed. Antenne rather short but with long
scape, the first funicular joint longer than the next two, the second
slightly elongate, the seventh wider and obtrapezoidal, the shaft
bristling with slender white squamules, the club moderate, oval, as
long as the four or five preceding joints, with its basal segment
nearly half of the mass. Prosternum even, very densely squamose
as in the preceding, finely constricted at apex and rather narrowly
separating the coxe, the posterior lobe not broad, feebly sinuate at
tip and not extending quite to the tangent line of the middle coxe,
which are separated by less than their own width. Legs moderate,
simple, the tibiz fluted and with small spur. Prothorax not
tubuliferous, the basal lobe very small, short and feeble, but shal-
lowly sinuate at tip, the scutellum small, subquadrate, free and
densely squamose, and the elytral strie sharply impressed, nude
and feebly punctulate, forming narrower partings of the vestiture
than in the preceding genus. The pygidium is densely punctured
and squamose, oblique, wider than long and evenly rounded. The
type is the following:

Polpones tectus n. sp.—Elongate-oval, convex, the integuments entirely con-
cealed but black throughout, clothed very densely and uniformly above with
large pale brownish-yellow scales, as large, even denser and whitish-yellow
beneath, longitudinal on the pronotum, oblique basally; beak (co) subcylindric,

BRAZILIAN BARINE 371

thick, densely punctured, squamulose basally, cariniform above, evenly arcuate
and four-fifths as long as the prothorax; antennz piceous; prothorax but little
wider than long, the sides parallel and feebly arcuate, rounding and strongly
converging in apical two-fifths to the truncate apex, which is much less than half
as wide as the base, the dense crust of scales not at all interrupted along the
median line; elytra one-half longer than wide, equal in width to the prothorax
and three-fifths longer, the sides just visibly converging, gradually more arcuate
to the rather obtuse apex, with broad and deep reéntrant sutural angle; stricze
observable as moderate partings of the dense vestiture; propygidium short but
distinct; abdomen without evident sexual mark, the first suture very fine and
barely traceable, the fourth segment as long as the two preceding. Length 4.5—
4.7mm.; width 1.7mm. Brazil (Rio de Janeiro). Two male specimens.

When accidentally denuded the pronotal surface is seen to be
subalutaceous, finely and densely punctate; the confused inter-
stitial punctures of the elytra are also small.

Loboderinus Solari

In this rather isolated genus the body is elongate and cylindric-
suboval, somewhat as in the preceding, and the beak is moderate,
not very slender and strongly sculptured, especially in the male,
separated by a very shallow impression and with acute bifid man-
dibles, very prominent when closed, but beyond this there is very
little resemblance between the two genera, which differ much in the
sexually modified male antennal club and widely separated anterior
coxe of Loboderinus, among other features. The body is only
partially squamose above, the prothorax non-tubulate and with
very small and feeble basal lobe, the scutellum slightly free, variable
in form but well developed and the elytra with strong punctured
grooves; the pygidium is small, flat, closely punctate and oblique
(oc), or subvertical (2). The antenne are medial (2) or at
about three-fifths (co), with long scape, the first funicular joint as
long as the next two or three and the club rather large and abrupt,
evenly oval (@.), or broad, flattened, very obtuse at tip and with
greatly dilated basal segment (co). The prosternum is even,
separating the coxe by distinctly more than their width, not spinose
in the male; femora mutic. The three species at hand are the
following:

Pronotum clothed very evenly throughout with slender yellowish squamules,
rather widely separated among themselves. Body black, narrow, elongate,
subcylindric and convex, the elytra glabrous and shining, the scutellum
rather large, wider than long, ogival and densely, pallidly squamose; under
surface clothed densely with pale sulphur-yellow scales, the femora with fine
slender squamules; legs bright rufous; beak (o) pale rufous throughout,
thick, compressed at the sides, nearly straight, arcuate and feebly tapering
distally, finely punctate and as long as the prothorax, which is about a sixth .
longer than wide, the sides feebly converging and straight, gradually slightly

372 MEMOIRS ON THE COLEOPTERA

rounding in apical third to the truncate apex, which is fully half as wide as
the base; surface finely, closely punctate, without trace of interruption in
sculpture or vestiture along the median line; basal lobe abrupt but very
short and broadly rounded; elytra two-thirds longer than wide, very slightly
wider than the prothorax and three-fourths longer, the sides feebly oblique
and straight, evenly rounding in about apical third, without reéntrant
sutural angle; grooves moderate, slightly exarate at apex, only very finely
punctate, a fourth as wide as the flat and subalutaceous intervals, which are
minutely, confusedly punctulate; pygidium slightly wider than long, some-
what convex, evenly rounded, slightly squamulose at base; abdomen without
sexual mark, the segments differing but slightly in length among themselves.
Length 4.25 mm.; width 1.4 mm. Brazil (Rio de Janeiro). One specimen.
bipartitus n. sp.
Pronotum glabrous, the sides and part of the base abruptly clothed densely
withinaleiscalest: fs taney ee a asreiee nt aces Fe Te, eae RIN alr as 2
2—Body smaller, elongate-oval, convex, rather shining, deep black, the legs pale
rufous, the beak rufous (o) or black, picescent at apex (2); beak (o”) very
feebly arcuate, compressed, alutaceous and finely punctate, as long as the
head and prothorax, having beneath a few erect hairs recalling the dense
fringe of Pseudomadarus, or () similar in length and barely less thick, the
flattened alutaceous sides less extended from the base, the distal parts
smoother, the arcuation more even and slightly greater; antenne medial
(@), or at three-fifths (o’), the general structure and broad flattened male
club as described above; prothorax very slightly longer (o’) or shorter (2)
than wide, the feebly converging sides straight, gently rounding and oblique
in nearly apical third; punctures very moderate but deep and separated by
about their diameters; dense sulphur-yellow squamules confined to lateral
fourth—a little more basally—and to a small ante-scutellar spot, also to the
rather large free triangular scutellum; elytra wholly glabrous, two-thirds
longer than wide, very slightly wider than the prothorax and scarcely twice
as long, the feebly oblique sides nearly straight, rather obtusely rounded
behind; grooves deep and distinctly punctate, exarate at apex; intervals
with very minute confused and close-set punctulation; pygidium densely
punctate, as wide as long (9), wider than long and more oblique (<);
entire under surface densely clothed with pale yellowish scales; abdomen
without sexual mark in the male, the segments of equal length. Length 3.5-
3.75 mm.; width 1.2-1.35 mm. Brazil (Chapada). October to December.
Three specimens. [Baridius collaris Boh.]...............+-. collaris Boh.
Body nearly similar but more parallel and cylindric, distinctly shining, deep
black, the legs obscurely rufescent, the beak black; dense yellow squamules
confined to lateral eighth of the pronotum, and thence in broader fascia
along the base, abruptly interrupted in median fourth, the scutellum trans-
versely oval, shining and glabrous; under surface with generally separated,
elongate, yellowish scales, denser on the abdomen and met-episterna; beak
(@) rather thick, feebly tapering, nearly as in the preceding but less flattened
at the sides, and a little shorter, barely as long as the prothorax, the latter
not quite as long as wide, the sides nearly parallel, straight, more rapidly
rounded and oblique in apical fourth; punctures moderate, deep, much
sparser and separated by twice their diameters and with narrow and partial
smooth median line, wholly wanting in collaris; elytra three-fifths longer
than wide, about equal in width to the prothorax and four-fifths longer, the
sides parallel, nearly straight, rapidly obtusely rounded in about apical third;
grooves moderate, punctate, coarse at apex; intervals with the minute
punctulation much sparser than in the preceding. Length 3.75 mm.; width
1.25 mm. Brazil (Chapada). May. One specimen, on flowers.
basalis Solair

BRAZILIAN BARINZ 373

Basalis bears no close relationship to collaris, as was suspected
by Champion; clavatus Solari is doubtless allied closely to collaris,
but has a much more elongate prothorax, according to the descrip-
tion. It is to be regretted that, excepting the long rufous scape,
both antennz are broken off in the unique type of bipartitus, so
that the singular male club cannot be described.

Loboderes Schon.

This genus is perhaps somewhat more closely allied to Madarus
than to the preceding, though differing greatly from either, and here,
as in the preceding, the male antenne are singularly modified; but
the special abnormality in this case affects the shaft and not the
club to any notable degree. In Loboderinus there is a remarkable
sexual difference in the color of the beak, this being very pale in the
male and virtually black in the female; here a sexual difference in
color also sometimes exists, but it affects the antenne and not the
beak; in flavicornis Gyll., and some allied species of small size for
instance, the antennz are pale yellow in the male but very dark or
black in the female. In Loboderes the body is elongate-oval and
strongly convex in form, with the upper strface polished and
wholly glabrous, but the under surface is generally densely clothed,
wholly or partially, with sulphur-yellow scales. The beak is more
or less thick and differs very little in the sexes, being sometimes a
little more compressed in the male, and the antenne are inserted
near two-thirds to three-fourths in both sexes, the first funicular joint
thick and only slightly elongate, the outer joints closely joined and
increasing in width, so that the rather large oval club is somewhat
gradually formed in the male, the funicle short; the very transverse
outer funicular joints bristle with long erect squamiform setae, which
are wholly wanting on the less transverse joints of the female. The
prosternum is flat, sometimes transversely ridged between the coxe
and separates the latter by not quite twice their width as a rule.
The legs are simple, rather short and with mutic femora, the poste-
rior and intermediate compressed, with very acute upper margin,
the prothorax only feebly subtubulate, with prominent rounded
basal lobe and flat, closely fitted and transversely lunate scutellum;
the elytra are very finely and subobsoletely striatulate and in-
dividually rounded at apex. The pygidium is rounded, subsimilar
in the sexes and only feebly oblique. The abdominal segments are
subequal among themselves as in Loboderinus.

The species are rather numerous, those at hand being as follows:

Femora glabrous, or with minute and very remote squamules; under surface in
part glabrous; species of larger size. Body elongate-oval, convex, polished,
feebly sculptured and deep black throughout, the legs, beak and antenne

374 MEMOIRS ON THE COLEOPTERA

black or blackish in both sexes; under surface with dense pale yellow scales,
the median part of the sterna, the abdomen narrowly along the middle, at
least basally and throughout the first segment, the mesosternum, outer part
of the mes-episterna and posterior half of the inferior thoracic flanks, wholly
glabrous; beak thick, cylindric, straight, feebly arcuate distally, sparsely
punctured and at the sides moderately longitudinally sculptured and, in both
sexes, a little shorter than the prothorax; antenne at three-fifths in both,
with longer scape but shorter, thicker, bristling shaft (o"); prothorax slightly
elongate, the feebly converging sides straight, very gradually feebly arcuate
and more converging beyond the middle, the feeble tubulation more than
half as wide as the base; punctures very small, sparse and inconspicuous;
basal lobe defined by a distinct small sinus at each side of its base, as usual
in the genus; elytra nearly two-thirds longer than wide, very little wider
than the prothorax and three-fourths longer, the feebly oblique sides straight,
gradually arcuate behind the middle to the obtusely rounded apex, the humeri
feebly tumid; striz extremely fine and feeble, punctulate, distinctly im-
pressed at apex, the intervals virtually impunctate; abdomen without sexual
impression, glabrous medially throughout its length in the female. Length
6.0-7.5 mm.; width 2.25-3.0 mm. Brazil (Chapada). January. Eight

SPECUIMENS ME Ae ee a an rie ca eee ree australis n. sp.
Femora more or less densely squamulose; under surface densely squamose
throughout; species oiten notably smalll..in’ size... .....40.5.6.1ee eels 2
2—legs black) the tibic sometimes obscurely Gurouss. ee eee an eee eee 3
Legs dark rufous throughomt,, “Guatemala: 5.3") tv. nal was ok ee eree een eee 7

3—Form short, stout and oblong-oval, the prothorax somewhat inflated. Deep
black and shining; beak thick, compressed, very feebly arcuate and hardly
four-fifths as long as the prothorax, more or less longitudinally sculptured;
antenne (@) at scarcely three-fifths, blackish, of the usual structure; pro-
thorax barely as long as wide, the sides evenly and distinctly arcuate from
base to the feeble tubulation, which is a little more than half as wide as the
base; punctures very fine, sparse and inconspicuous; basal lobe with the
lateral sinuses rather deep; scutellum angulate behind as usual, transverse
and strongly sinuate at base; elytra barely more than a fourth longer than
wide, slightly wider than the prothorax and three-fifths longer, with feebly
tumid humeri; sides very feebly oblique and straight, very obtusely rounded
in about apical third; strie extremely fine and feeble, having minute and
distinct punctules, fine but impressed at apex; intervals with very feeble
and infinitesimal punctulation; pygidium small, subvertical, fully as long
as wide, rounded below, very «eebly convex and rather closely, distinctly
squamose; legs unusually short. Length 4.65 mm.; width 1.9 mm. _ Brazil
(Sdntarem).. ‘One female-specimens:< 9) seen. ona eae subovalis n. sp.
Form relatively narrower, more elongate-oval, the prothorax not inflated......4

4—First ventral segment behind the coxe only about half as long as the second
measured on the same longitudinal line; antennz black in both sexes, with

paler’ clays era ass Selsi beck heh See oe ep PT ee eee aOR ees Lo gem Es 5
First ventral much more than half as long as the second, measured in the same
WAY Sire = sinc aie ui Sletten cGesed «mca Syste eI Wa pene gISR Ss) is ope PTS tok et oe aR en 6

5—Male antenne with the first funicular joint as long as the next two, the second
a third longer than wide, the others slightly transverse, closely bristling with
very stiff setae—almost as long as the articular width—internally, and with
almost similar stiff sete, but inclined in direction, externally, the distal
joints more oblique, the seventh much shorter than the sixth and transversely
cuneiform; club gradual, as long as the four preceding joints, oval, pointed,
evenly pubescent and paler, with almost regular sutures internally, the sutures

BRAZILIAN BARINZ SV

finer and very oblique on the other side; body elongate-oval, convex, deep
black, the anterior tibie slightly piceous; beak (c”) cylindric, not quite as
long as the prothorax, thick, shining and finely, sparsely sculptured, nearly
straight, the antenne rather beyond three-fifths; prothorax slightly elongate,
with feebly arcuate sides, the apex nearly three-fifths as wide as the base;
punctures sparse and very fine; elytra very obtusely oval, three-fifths longer
than the prothorax and very little wider, the strie obsolete, represented by
series of fine distinct punctures, the minute confused interstitial punctures
evident; pygidium vertical, convex, glabrous, excepting a few fine squamules
basally, and loosely punctate, somewhat wider than long and strongly arcuate
beneath; legs rather long. Length 5.7 mm.; width 2.4 mm. Brazil (San-
taremi).) (One specimen. a2. elec eee st ise eee abdominalis n. sp.

Male antenne shorter, with much larger club, the second funicular joint longer
and thinner than the first, nearly twice as long as wide, the remaining joints
very transverse and close, rapidly increasing in width and herissate on both
sides with sete, which are subequally inclined, long and thinner than those
of the preceding, the club large, thick, conoidal and with oblique sutures,
the distal part paler than the basal; body much smaller; beak (oc) very
thick, nearly straight, scarcely over three-fourths as long as the prothorax,
strongly flattened on the sides and finely, sparsely sculptured, the antenne
near three-fifths, the scrobes extremely cavernous, oblique; prothorax
narrower, more distinctly elongate and with more nearly straight sides, the
apex three-fifths as wide as the base; punctures fine and sparse but rather
more evident; elytra nearly similar in outline and sculpture, similarly having
the stricz somewhat coarsely impressed at apex; legs shorter, the tibiz more
notably shorter than the femora and piceous; pygidium smaller, semicircular,
less convex, more finely punctate and more uniformly clothed with narrow
yellow squamules; anterior cox less distant, separated by but little more
than their width. Length 4.7-4.75 mm.; width 1.85-1.9 mm. Brazil
(Santarem). Two specimens.........------:+tseeerrr ee: flumineus n. sp.

6—Body narrowly oval, convex, black and shining; female a little broader and

more oval; beak very thick and short, three-fourths as long as the prothorax,

straight, arcuately beveled at apex, flattened on the sides and strongly

sculptured, almost similar in the sexes; antenne at three-fifths, very pale

(@), black and with slender shaft and abrupt club (¢@), the first funicular
joint (co) as long as the next two, the second scarcely as long as wide, the
joints thence gradually very strongly transverse and close but symmetric,
bristling on only the inner side with extremely thick stiff erect setae, which
are much shorter than the articular width, the club large, almost as long as
the entire stem, oblong, truncate at base, conical apically, the first two
sutures very coarse and deep, moderately sinuate, the sides of the first two
segments prominent at apex within; prothorax just visibly longer (o) or
shorter (@) than wide, the sides slightly arcuate for some distance beyond
the middle; apex much more than half as wide as the base; punctures very
fine, sparse, closer, stronger and more impressed toward the sides, especially
in the male; elytra only a third or fourth longer than wide, very obtuse at
apex, the sides barely at all oblique, slightly wider than the prothorax and
one-half longer; striz very fine but evident, finely punctulate, the infinites-
imal punctulation of the intervals evident (<), but almost obsolete (2 Ne
pygidium semicircular, somewhat larger in the male, feebly convex and
sparsely squamulose; legs rather short, black or piceous, with obscurely
rufous tibia. Length 3.7-4.15 mm.; width 1.5-1.8 mm. Brazil (Chapada).
Jantary.) Moun specimens: . - ef e22 tse ee vn tS: flavicornis Gyll.

376 MEMOIRS ON THE COLEOPTERA

Body larger, rather more broadly oval, convex and polished, black, the legs
piceous-black; head missing in the type; prothorax slightly longer than
wide, the sides less arcuate than in the preceding and nearly straight; apex
feebly sinuate medially as usual, four-sevenths as wide as the base; punctures
sparse, minute throughout; elytra evenly oval, not so obtuse behind, barely
over one-half longer than wide, evidently wider than the prothorax and
three-fifths longer, the humeri less tumid, only very feebly swollen; strize
very fine, almost obsolete, a little stronger but still very fine at apex, minutely
punctulate, the infinitesimal interstitial punctulation barely visible; pygidium
small, as long as wide, rounded, nearly flat and clothed rather closely with
slender parallel yellow squamules; first two ventrals behind and in line with
the coxe equal in length and each nearly a fourth longer than either the third
or fourth in the same line, the fifth one-half longer than the fourth. Length
5.0 mm.; width 2.18 mm. Brazil (Santarem)............. congruens n. sp.

7—Body small, narrow and elongate-oval, polished, black, the legs rufous through-
out; antenne (c’) somewhat as in flavicornis, very pale, short, the funicle
similarly formed and bristling with even coarser setz, the club nearly similar;
first funicular joint shorter, not as long as the next two; beak (¢) nearly
similar in form but almost as long as the prothorax, although actually of
less length, the flattened sides more finely sculptured; antennz nearly at
three-fourths; prothorax narrower, distinctly longer than wide, the sides
slightly arcuate anteriorly; punctures finer and sparser, especially toward
the sides; scutellum a little smaller; elytra ovoidal, obtuse at apex, three-
fifths longer than wide and about three-fifths longer than the prothorax; strie
similar but somewhat more strongly and remotely punctate, more strongly
impressed at apex than in flavicornis, the interstitial punctulation still more
minute and sparser; pygidium (<7) relatively larger, similarly convex but
more glabrous; anterior coxe separated by evidently more than their own
width. Length 3.65-3.75 mm.; width 1.45-1.5 mm. Guatemala (Vera
Paz),—Champicn. Two specimens. [Lob. flavicornis Chmp. nec Gyll.]

parvulus n. sp.

The identification of flavicornis given above, is only tentative, as
it is impossible to be sure without an actual inspection of the type;
for example, in the description of Gyllenhal, the elytra are said to
be scarcely more than twice as long as the prothorax, whereas in
actuality they are much less than twice as long in the Chapada
specimens, and there are other inconsistencies; the legs in flavicornis
are definitely stated as black, whereas in parvulus they are rufous
throughout. The type of congruens is doubtless a female, so that
the absence of head is of but little moment.

Madarus Schon.

In this genus the body is oblong-oval, convex, polished and wholly
glabrous, the beak thick, subcylindric, feebly arcuate, separated
from the head by a broad shallow impression and similar in the
sexes; the mandibles are well developed, bifid and moderately
decussate. The antenne are at three-fifths (o), or just visibly less
apical (2), the scrobes deep and oblique, the scape far from attain-
ing the eye; the first funicular joint is as long as the next three,

BRAZILIAN BARINZE 377

the outer joints not compactly joined, gradually slightly more
transverse, the club oval, as long as the four preceding joints and
more obliquely pointed in the male. The prosternum is not modi-
fied and separates the coxe by one-half more than their width,
the apical constriction fine, deep and entire; the posterior lobe
extends to a line tangent to the middle coxe and is obtusely emar-
ginate. The legs are normal, the tarsi only moderately dilated and
the tarsal claws rather strong, arcuate and widely divergent; the
femora are completely unarmed. The prothorax is tubulate, the
basal lobe large, prominent and evenly rounded, the scutellum
transversely lunate, not exactly free, the elytra with extremely fine,
subobsolete, finely punctulate striz, becoming coarse and exarate
at apex and with large and very moderately prominent subapical
umbones and broadly tumid humeri. The pygidium is semicircular,
feebly oblique in both sexes, slightly larger in the male and always
feebly ridged along the middle.- In the male the beak has some
erect sete and often a subcrenulate edge beneath, somewhat as in
Pseudomadarus, but less developed. The three species at present
known to me are as follows:

Sides of the prothorax strongly arcuate, except posteriorly, the third hind tarsal

joint well developed and dilated as usual... .......--- +. e+e seers e eee 2
Sides of the prothorax feebly arcuate, the third hind tarsal joint much smaller
and less dilated, though similarly bilobed; body smaller in size........... 3

2—Body larger and more obese, deep black and polished, the large humeral red
area extending to the second stria; beak (o”) thick, shining, very moderately
and evenly punctured, as long as the head and prothorax—a little shorter
but otherwise similar (@)—and having an obtusely impressed channel at
each side, extending from base nearly to the antenne, the latter blackish;
prothorax large, a fifth wider than long, the sides feebly converging and
slightly arcuate, gradually rounding anteriorly, the tubulation much less
than half as wide as the base in both sexes, but especially in the male; punc-
tures sparse and very fine, somewhat more evident at the extreme sides;
elytra nearly one-half longer than wide, only very slightly wider than the
prothorax and four-fifths longer, the moderately oblique sides nearly straight,
the apex obtusely rounded, with reéntrant sutural angle as usual in this
section; minutely punctured subobsolete striz deeper at the suture and on
the flanks; pygidium closely punctured and with slender yellowish squamules,
especially in the male, where there is a distinct medio-basal abdominal
impression. Length 9.3-9.8 mm.; width 4.1-4.4 mm. Brazil (Chapada).
October and November. Four specimens..........-.-+++-+++: latus n. sp.
Body not so large and distinctly narrower, similar in color, lustre and almost
similar in all structural characters, the beak a little shorter, not as long as
the head and prothorax (<7), and still shorter and less thick (2) and more
finely punctate, the antenne nearly similar; prothorax relatively not so
large or broad, only very little wider than long, the sides nearly similar but
not quite so rapidly rounding anteriorly, the tubulation and sculpture
almost similar; elytra nearly similar throughout, but with somewhat less
oblique sides and still more obtuse apex; pygidium almost as in /atus, but
exhibiting still greater sexual contrast, being relatively much smaller in the

378 MEMOIRS ON THE COLEOPTERA

female, where it is smaller and narrower than in the female of /atus; abdomen
nearly similar. Length 7.7-8.5 mm.; width 3.15-3.45 mm. Brazil (Cha-
pada—campo). October and December. Six specimens... .chapadz n. sp.
3—Body smaller than in either of the preceding, nearly similar in color, lustre
sculpture and general structural characters, the beak (<) not quite so thick
and somewhat more closely punctured, not quite as long as the head and
prothorax, the latter almost as long as wide, the moderately converging
sides very gradually and only moderately arcuate anteriorly, the tubulation
somewhat more abrupt and parallel-sided; sculpture nearly similar; elytra
almost as in the two preceding throughout, except that the feebly oblique
sides are perhaps somewhat more arcuate; pygidium (co) nearly as in
chapade, but less transversely semicircular; abdominal impression in this
and chapade much narrower and more acute along the bottom than in /atus.
Length 7.4 mm.; width 3.28 mm. Brazil (Minas Geraes); Desbrochers des
Loges 5; Onerspecimen.) sr ciracccr aise eae Aen ere ee reductus n. sp.

The locality and dimensions of biplagiatus Boh., are not given
and, as there are evidently a number of rather closely allied species,
it is impossible to select any one of those at hand as being definitely
biplagiatus; it is therefore necessary to leave the decision of this
point to one having the actual type before him.

Eudamarus n. gen.

The body is here smaller and more rhombic than in the preceding,
highly polished and almost completely sculptureless above, deep
black and with the elytra immaculate. The beak is rather thick,
cylindric and feebly arcuate, feebly separated from the front and
with stout, bifid and decussate mandibles. Antenne inserted well
beyond the middle, with deep scrobes, rapidly becoming inferior,
and rather long scape, the first funicular joint somewhat longer
than the next three, the outer joints compactly joined, gradually
more transverse, the club subevenly oval, as long as the preceding
six joints, being relatively much larger than in Madarus, and not
very evenly divided by the moderate sutures. The prosternum is
feebly convex, even and separates the coxz by evidently more than
their own width, the posterior lobe, in typical Eudamarus, with its
entire base broadly and strongly, evenly and angularly emarginate;
but in the subgenus Damarites, it is only very feebly sinuato-
truncate. The legs are shining, well developed, the femora normal
and mutic throughout in the type, but with the upper margin of
the posterior broadly angulate near basal third in vernicatus; the
tarsi are rather slender, the third joint larger in impressirostris,
notably small in vernicatus, the claws long and strong in the former,
shorter in the latter, widely diverging. The prothorax is very
gradually and feebly constricted apically, not at all sharply tubu-
late, the basal lobe prominent and angulate to broadly rounded, the
scutellum in close contact and transversely lunate and the elytra

BRAZILIAN BARINA 379

.

with extremely fine and scarcely traceable striation on the disk.
The pygidium is evenly convex, subvertical and more or less semi-
circular, narrower in vernicatus. The two known species are as
follows:

Form rather broadly rhombic-oval, convex, very smooth, polished, black and
devoid of sculpture, wholly glabrous above and beneath; beak (9 ) thick,
evenly cylindric, straight, arcuate and just visibly tapering distally, as
long as the head and prothorax, minutely and remotely punctulate, the
upper surface with a deeply impressed broad channel from basal to apical
fifth: antennz at four-sevenths, blackish, the scape gradually rufous basally;
prothorax a fifth or sixth wider than long, the sides evenly and moderately
arcuate, becoming subparallel at base and very feebly sinuate at apex, the
latter truncate and much less than half as wide as the base, the basal lobe
prominent, bluntly angulate at tip and with a feeble basal impression at
each side; punctures minute, remote and very feeble; elytra oval, with
rather prominent humeri but no subapical umbones, a fourth longer than
wide, distinctly wider than the prothorax and three-fifths longer; strie
excessively fine, subobsolete except at the suture and on the flanks, not
stronger at apex, minutely punctulate, the general surface minutely, remotely
and evenly punctulate; pygidium distinctly but sparsely punctate, even and
semicircular; prosternum in the type not transversely constricted at apex,
but with a large and rounded, very deeply impressed apical pit, the basal
emarginate lobe briefly and sparsely setulose. Length 7.5 mm.; width 3.7
mm. Brazil (Para). June. One specimen. [Eudamarus in sp.].

impressirostris n. sp.

Form narrower, much more evenly oval, smooth, deep black, polished and gla-
brous, except that the entire met-episterna and the sides of the abdomen
behind the second suture are densely clothed with orange scales; beak ( ? )
not quite so stout, evenly and moderately arcuate, cylindric though feebly
compressed at the sides basally, separated from the head by a much deeper
impression and with the punctures much larger, deep and denser, somewhat
longer than the head and prothorax and not at all impressed dorsally; an-
tennz rather beyond four-sevenths, rufous, fuscous distally, almost similar
but with the club longer than the preceding six joints; prothorax a sixth
wider than long, the sides converging and straight to apical third, there
rounding and thence oblique to the apex; basal lobe large, broadly rounded;
punctures fine and sparse but very evident; scutellum broadly ogival, less
sinuate at base than in the preceding; elytra very evenly oval, nearly a
third longer than wide, with almost obsolete humeral swelling, slightly wider
than the prothorax and nearly three-fourths longer; sculpture almost as in
the preceding, the minute strial punctures more distinct; pygidium smaller,
narrower, scarcely wider than long and with coarser and much closer, very
deep punctures; prosternum not modified at apex, excepting a small sinuation
of the edge; it and the entire under surface much more strongly and closely
punctured than in the preceding. Length 5.7 mm.; width 2.7 mm. Brazil
(Santarem). One specimen. [Damarites n. subgen.]..... vernicatus n. sp.

As may be perceived very readily, there are two distinct subgenera
represented by the above two species. The Calandra corvina of
Fabricius, placed in Madarus by Boheman, belongs to the present
genus, but there are several characters mentioned by the latter
author that do not harmonize very well with impressirostris, and

380 MEMOIRS ON THE COLEOPTERA

vernicatus is quite different. There is also a species of true Euda-
marus, occurring in Central America and recorded by Mr. Champion
under the name corvinus.

Pseudomadarus n. gen.

In some features this genus may be considered an intermediate
between Madarus and Conoproctus, resembling the latter somewhat
in form of body, quadrimaculate elytra and radical sexual differences
in the beak, but it differs not only in the post-apical position of
the male antenne, but in the entire form of the pygidium, this part
being very much less oblique in the male and more similar in form
in the male and female. The body is rather large in size, elongate-
suboval, sometimes feebly rhombic, the integuments very smooth,
shining and almost sculptureless, the color generally black, the
elytra each always with two oblique red spots, and with the legs
very much longer than in Madarus but similar to those of Cono-
proctus. The elytral sculpture differs greatly from that of Huda-
marus, the apical part being strongly exarate as in Madarus, this
feature being much more accentuated than in Conoproctus. The
beak (<”) is very long, nearly straight and feebly bent at the point
of antennal insertion, but (@) is much shorter, rather strongly,
evenly arcuate and gradually more tapering, also smooth beneath
and without the inferior fringe of the male. :The mandibles are
feebly bifid and slightly decussate. Antenne at apical third or
fourth (o), or medial (2), long and slender, with very long and
abruptly defined, deep scrobes, the scape very long, especially in
the male, the first funicular joint as long as the next three, the
second also moderately elongate, the outer joints scarcely dilated,
not compact and but little wider than long, and the club subcylin-
dric-oval and usually rather longer than the preceding five joints.
The prosternum is even, long and upwardly sloping before the cox
and, in the male, often has a feebly obtuse tubercle near each coxa;
the posterior lobe is broadly bilobed at tip and the coxz are sepa-
rated by somewhat more than their width. The femora are not
dilated and are mutic, the tibiz long and straight and the tarsi long
and slender, with long and narrow, only feebly diverging lobes of
the third joint, the claws strong and widely diverging. The pro-
thorax is very gradually tubulate, the basal lobe very prominent
and rounded, the scutellum close, transversely lunate, the elytral
strize almost obsolete and the pygidium subvertical and transversely
oval in both sexes. The species are rather numerous, those now
known to me being as follows:

Antennal club (2) about as long as the preceding five or six joints; sides of
the prothorax distinctly arcuate, generally more so posteriorly. [Pseudo-
madarusvintsp:|ce.oss Gaaeica aie eae eee (rere ne tener i rintan ctr 4 canon 2

BRAZILIAN BARIN2 381

Antennal club very long, as long as the scape and very much longer than the
entire shaft; prothorax a truncated cone, the sides very nearly straight;
body very much smaller and narrower than in any other species; beak
strongly, evenly arcuate, the antenne medial in the type, which is apparently

a malexpaieptomadarus n.isubgen. |i ani Ska . Se 8
2—Prothorax more or less inflated, rapidly narrowed anteriorly.............. 3
Prothorax more conical, the sides almost evenly and only very moderately arcuate

poor (OLLIE VST a=. ce tranny IN eRe so LG i tae 7 eae eh a 7
3 Bodyimcryepsoad in torn (ol Par eee ae hea ees cer at all legac 4
Body much more narrowly elongate-oval and smaller in size................. 6

4—Distal joints of the antennal funicle distinctly transverse. Body smooth,
deep black, the four elytral pale spots rather dull in color; legs deep black
(o), the femora somewhat piceous (9); beak (co) rather more than half
as long as the body, finely but deeply, sparsely punctate, not very evidently
crenulate but strongly fringed beneath, the antenne at apical third, or (2)
much shorter, evenly and strongly arcuate, smooth and feebly narrowed
beyond the antenne, whichare at four-seventhsas usual, separated from the
head by an extremely feeble impression; prothorax a sixth (0) ora fifth (92)
wider than long, the distinct tubulation not defined by a transverse con-
striction and much less than half as wide as the base; surface almost com-
pletely smooth; elytra three-fifths (9) to three-fourths (co) longer than
wide, elongate-suboval, but obtuse at apex, and with slightly tumid humeri,
a little wider than the prothorax and four-fifths longer, the strie discally
very fine and subobsolete, evident but fine at the sides, very coarse, deep
and exarate in nearly apical fifth; male abdomen with a simple deep medio-
basal impression, the sides of which, except at base, are densely brunneo-
setulose; pygidium (o’) nearly twice as wide as long, densely punctate, or
(2) a little less wide though otherwise nearly similar. Length 8.8-9.5 mm.;
width 3.8-4.0 mm. Brazil (Santarem). Seven specimens.
quadripustulatus Fabr.
Distal funicular joints subquadrate, only very slightly wider than long (<%),
Vemmaenlely more Eransverse (DO )irs-.s cs i noc65a%% «isle cies makes bdo ectsleb 5

5—Color, lustre and sculpture nearly as in the preceding, the elytral rufous spots
similar; legs deep black throughout; beak (co) just visibly more than half
as long as the body, finely but strongly, loosely punctate, its under surface
feebly crenulate and with a dense fringe; antenne piceous, at apical third;
prothorax longer, a fifth wider than long, the strongly arcuate sides very
converging anteriad, the tubulation strong, defined by a fine and feebly
impressed line, scarcely three-sevenths as wide as the base; surface smooth,
excepting the usual remote and infinitesimal punctulation; scutellum
strongly, transversely lunate and rather small, almost four times as wide as
its median length; elytra three-fifths longer than wide, very slightly wider
than the prothorax and three-fourths longer, the feebly oblique sides nearly
straight, circularly rounding at apex, with the usual reéntrant sutural angle,
the humeri feebly tumid; sculpture similar; pygidium nearly as in the
preceding, but a little larger and rather less densely punctured, with the
median line more strongly tumid; medio-basal abdominal impression more
oblong, with the setiform hairs at the sides posteriorly somewhat longer and
finer than in the preceding. Length 10.2 mm.; width 4.28 mm. Brazil
(Santarenn)ay One specimens. .. ios ..cc inte baie bales Uda ale’s barbatulus n. sp.
Color, lustre, sculpture and general features as in the preceding, the legs even
somewhat longer and deep black in both sexes; beak (<”) longer, very nearly
as long as the elytra, coarsely serrato-crenate beneath and with a long
conspicuous fringe, finely but strongly, sparsely punctate, or (@) shorter,

382 MEMOIRS ON THE COLEOPTERA

more slender, strongly, evenly arcuate, two-thirds as long as the elytra,
smooth and gradually feebly tapering beyond the antennz, which are long,
slender, piceous, near apical fourth (o’), or medial (9); prothorax as long
as wide (<”), a sixth wider (@); inflated basally, thence gradually narrowed
to the tubulation, which is defined by a distinct impressed line; surface
similar; scutellum and elytra subsimilar; surface throughout above very
faintly alutaceous; pygidium (<7) similar but less coarsely punctate, or ( @ )
almost exactly similar but smaller; medio-basal abdominal impression of
the male differing in being loosely clothed throughout, except at base, with
long slender brownish sete. Length 10.2-11.0 mm.; width 4.2 mm. Brazil
(Santarem). Whree specimensia5 sre ace eee longipes n. sp.

6—Body nearly as in all the preceding in color, lustre and sculpture, except that
the black legs have the femora distinctly though nubilously rufous medially;
beak (o”) not quite so long, a little less than half as long as the body, finely,
loosely punctate, nearly straight, arcuate beyond the antennz as usual, or
(@) differing somewhat less from that of the male than in the preceding,
though evidently shorter, evenly and rather strongly arcuate, the smooth
part beyond the antenne more abruptly narrowed; under surface (<”) only
very feebly crenulate and with a shorter and sparser fringe; antenne (<7)
slender, at apical third, the outer funicular joints but little wider and only
very slightly transverse, the club barely longer than the five preceding joints,
more oval and equally divided by the sutures, or ( 2 ) having more transverse
distal funicular joints and slightly shorter club; prothorax very slightly
shorter than wide, more evidently (@ ), less inflated basally, the sides only a
little more arcuate anteriorly, the surface similar, the scutellum and elytra
also nearly as in the preceding species; pygidium differing much more in the
sexes, large, only one-half wider than long and tumid along the middle (<),
or smaller, shorter, flatter and more densely punctured (9); medio-basal
abdominal impression (0) larger, more broadly oval, and with only the
extreme sides sparsely setulose. Length 8.6-8.85 mm.; width 3.4-3.65 mm.

Brazil (Amazon Valley). Desbrochers des Loges. “Two specimens.
lucidus n. sp.

Body ‘still smaller and narrower, deep black, with similar elytral macula, the
legs deep black; beak (<7) still shorter, evidently less than half as long as
the body, not crenate but briefly and loosely fimbriate beneath; antenne
near three-fifths, piceo-rufous, the outer funicular joints but very slightly
enlarged or transverse, the club long, cylindric-oval, nearly as long as the
six preceding joints, its basal segment much longer than the second, obconic
and truncate at base as usual; prothorax a fifth or sixth wider than long, the
converging sides nearly straight, gradually broadly rounding anteriorly, the
tubulation defined by a very fine and feeble impressed line; sculpture, lobe,
scutellum and elytra nearly as in the other species; pygidium (co) smaller
and much shorter than in the preceding, nearly twice as wide as long, the
deeply punctate surface not medially carinulate as in Jucidus, but discally
tumid medially beyond the middle; medio-basal abdominal impression of the
male much feebler, narrower and shallower than in any of the preceding,
with a few fine decumbent sublateral yellowish sete. Length 7.3 mm.;
width 3.0mm. Brazil (Para). A single specimen.......... parensis n. sp.

7—Legs rufous, the femora slightly shaded at base and apex; four elytral red
spots brighter than usual. Oblong-oval, shining, the body deep black,
excepting the red elytral macula; beak ( 2 ) two-thirds as long as the elytra,
strongly and evenly arcuate, smooth, but only very feebly and gradually
tapering beyond the antennae, which are just visibly beyond the middle,
piceous, with narrow and gradually pointed club, the outer funicular joints

BRAZILIAN BARIN 383

but slightly wider than long; prothorax a fifth wider than long, the fine
line at the tubulation obsolete; sculpture infinitesimal as usual; elytra as
in the preceding species; pygidium very moderate, only slishtly wider than
long, strongly and densely punctate, carinulate’ basally. Length 9.5 mm.;
width 3.9 mm. Brazil (Santarem). One specimen.......... vividus n. sp.
Legs deep black throughout. Body of the usual form, coloration and sculpture;
beak (<7) long, four-fifths as long as the elytra, finely, sparsely punctate,
bent at apical fourth, crenulate and strongly fimbriate beneath, or (2) much
shorter, evenly and strongly arcuate, scarcely as long as the head and pro-
thorax, very gradually smoother and feebly tapering, not at all more rapidly
so beyond the antenne, the latter (<”) at apical fourth, slender, rufo-piceous,
the outer funicular joints barely at all wider and only a little wider than
long, though as wide as the base of the club, which is very narrow and cylin-
dric, gradually pointed and somewhat longer than the five preceding joints,
or (@) very slightly beyond the middle, the funicular joints somewhat
shorter, the club more oval; prothorax fully as long as wide (<7), a little
shorter (@), the fine constriction at the tubulation evident; elytra about as
usual in the other species; pygidium (<’) strongly, densely punctate, semi-
circular, about one-half wider than long, the median line tumid, more broadly
so toward tip, or (Q) smaller, similar in shape and verticality, flatter, not
tumid along the middle; medio-basal abdominal impression of the male
shallowly concave, clothed throughout, except at the basal margin, with
close-set slender subdecumbent yellowish-brown sete. Length 9.4-10.0 -
mm.; width 4.0mm. Brazil (Santarem). Two specimens.
productus n. sp.
8—Body much smaller and more slender than in any of the preceding species,
shining, rather piceous black, with four elytral red spots, which are more
approximate longitudinally than in the preceding section, the abdomen
rufous, the legs black; integuments similarly glabrous, the minute punctu-
lation, and especially the punctulate elytral stria, more evident; beak (<0)
very different, almost as in the female of the preceding subgenus, rather
thick, evenly and strongly arcuate, finely punctulate, slightly tapering distally
and with a small transverse impression above on a line with the points of
antennal insertion, a little longer than the head and prothorax, with the lower
edge smooth and not at all fimbriate; antenne near four-sevenths, piceo-
rufous, the first funicular joint longer than the next three, the second but
little longer than wide, the outer joints short, compact, gradually more
transverse, the club very long, cylindric, as long as the scape, clothed with
short dense erect hairs, the sutures indistinct, except one near the base,
which delimits a segment very much like the seventh funicular joint; this
segment is, however, a part of the club and is similarly clothed; prothorax
conical, nearly as long as wide, with nearly straight sides, the apical tubu-
lation rather more than half as wide as the base; punctures very minute
and sparse, the lobe and scutellum, and also the elytra, nearly as in the
preceding section, except that the subobsolete striz are much more distinctly
punctulate, exarate at apex in similar manner; pygidium different, sub-
vertical and circularly rounded beneath, but only about as wide as long,
evenly convex and with well separated, deep punctures; prosternum similar;
male abdomen with a smaller and feebler medio-basal impression, which has
a few short glistening yellowish hairs at the sides posteriad. Length 6.2
mm.; width 2.35 mm. Brazil (Chapada—forest). September. One speci-
FETUS ch cj chiGl 01 Ch OnE oe ROIEEEOCT BOTCR on SIT LCR AG Ia FIC aaa conicicollis n. sp.

I have no doubt that conicicollis will have to be separated some

day as a fully distinct genus, but at present prefer to leave it with
a subordinate status; the mandibles are thick, straight and slightly

384 MEMOIRS ON THE COLEOPTERA

irregular within and are non-decussate. Quadripustulatus is re-
corded from Central America by Mr. Champion, but, in view of
the considerable number of Amazonian species now before me, I
am quite certain that it will prove to be specifically distinct; it is,
however, interesting to note that the genus extends to the north-
ward beyond the Amazonian region, for there is no evidence now
at hand indicating a southern extension, excepting the very aberrant
conicicollis described above.

Conoproctus Lac.

The body here is very much as in the preceding genus in form,
color and sculpture, the four oblique red elytral spots almost
identical, but in many other respects it is quite different. The
beak in the male is similarly very long, but is feebly arcuate, smooth
beneath and without trace of the inferior fringe of Pseudomadarus,
and the antennze are as near as possible to the extreme apex; it is
similarly separated from the head by a very feeble transverse
impression and the mandibles are non-decussate. In the female,
the beak is even relatively shorter and distally more slender than
in the preceding genus, and similarly, it is evenly and rather strongly
arcuate. Antenne very long and slender, the scape (co) longer
than in any other Barid genus, extending nearly through the entire
length of the beak, the first funicular joint as long as the apical
width of the prothorax and three-sevenths of the entire shaft, the
first three joints diminishing rapidly in length, 4, 5 and 7 a very
little longer than wide, 6 a little shorter, the club very moderate,
narrowly oval, gradually pointed and as long as the four preceding
joints, or (@) much shorter, medial, the scape as long as the apical
thoracic width, only the first two funicular joints elongate, the
first as long as the next four, 4-7 wider than long, the club a little
more oval. The prosternum is almost exactly as in the preceding
genus, the coxee separated, however, by about their own width or
less, the prothorax throughout, scutellum and elytra nearly similar,
except that the elytral apex is merely remotely striate, not at all
exarate; the pygidium is very different, being convex, subhorizontal,
long, angulate and minutely, sparsely punctate (co) or slightly
oblique, wider than long, semicircular, flatter and coarsely, deeply
and densely punctate (2). The legs are similarly long and rather
slender, simple and with nearly similar tarsi, the third joint but
slightly dilated; the male anterior legs are much more notably
longer than those of the female than they are in Pseudomadarus,
where the difference is barely observable. The single species in my
collection is the following:

Conoproctus fluvialis n. sp—Form very elongate-suboval, convex, smooth,
faintly alutaceous, deep black, the elytra each with two oblique red spots; beak

BRAZILIAN BARINA 385

(o) evenly and moderately arcuate, as long as the elytra, finely but distinctly,
sparsely punctate, the antenne dark rufous, or (2) two-thirds as long as the
shorter elytra, more arcuate, the basal half cylindric, more closely punctate than
in the male and rather thick, the apical half—beyond the antenne—much thinner,
smooth, straight and distinctly flattened, the lateral groove beyond the antenne
distinct for some distance; prothorax conical, the sides basally and feebly arcuate,
evidently longer () or a little shorter (@) than wide, the infinitesimal punctules
very feeble; lobe and scutellum as in the preceding genus; elytra twice as long
as wide (<7), two-thirds longer than wide (9 ), elongate-suboval, barely wider
than the prothorax and four-fifths longer; striae as nearly as possible obsolete,
deep at apex; male abdomen with a deep elongate impression medio-basally,
extending further than in the preceding genus and almost to the apex of the second
segment, its slopes with very few remote and extremely minute prostrate hairs.
Length 9.3-12.3 mm.; width 3.3-4.0 mm. Brazil (Santarem, Para and Ben-
evides). June and July. Fourteen specimens.

This species differs from the type, named quadriplagiatus b
Lacordaire, in its much smaller size and different habitat, that
species being an inhabitant of French Guiana—a region evidently
separated from the Amazon Valley—and 15 mm. in length, excluding
the beak as usual.

Eutoxus Schén., is another genus allied apparently to Pseudo-
madarus and Conoproctus, but there the male prosternum is very
broad and armed, and the pygidium is only half free in the male and
indistinct in the female. A number of Central American species
assigned to Eutoxus by Mr. Champion, probably belong to other
genera, undescribed as yet.

Stripenia n. gen.

The body in this genus is small, oblong-oval, convex, shining and
glabrous above, but densely clothed with large yellowish-white
scales throughout beneath. The beak is rather slender, equal,
feebly and evenly arcuate, separated by a very feeble impression
and with the mandibles dentate within, but only feebly decussate;
they are prominent when closed. Antennz medial, short, the first
funicular joint as long as the next three, the second not quite as
long as wide, 3-7 very short, transverse, compactly joined and
gradually wider to the base of the club, which is very large, ovoidal,
thickest beyond the middle, nearly twice as long as the entire shaft,
with its basal segment half the length and obconic, with straight
sides, and is finely, densely pubescent throughout. The prosternum
is flat, separating the coxe by one-half more than their width, and
with broadly truncate posterior lobe. The legs are moderate and
normal, the prothorax strongly but not abruptly tubulate, with the
basal lobe short and broadly truncate, the scutellum wider than
long, triangular and punctured and the elytra deeply, evenly
grooved, feebly umbonate and with moderately tumid humeri.

T. L. Casey, Mem. Col. X, Oct. 1922.

386 MEMOIRS ON THE COLEOPTERA

The pygidium is fully as long as wide, subvertical, moderately
convex and deeply, closely punctate. The type is as follows:

Stripenia infratectum n. sp.—Oblong-oval, strongly convex, deep black through-
out and very shining and glabrous above; beak rather slender, very evenly
cylindric throughout the length and evenly, moderately arcuate, shining, glabrous,
finely, loosely punctulate and a fourth longer than the head and prothorax, the
antenne piceous, with blackish club; prothorax a fourth wider than long, the
sides just visibly converging, feebly and evenly arcuate, rounding in fully apical
third, the tubulation more than half as wide as the base; punctures very fine and
sparse, stronger toward the sides and in a single line along the base; scutellum
well developed and in rather close contact; elytra fully one-half longer than
wide, ovulate but somewhat obtuse at apex, very little wider than the prothorax
and about twice as long; grooves slightly punctate and a fourth or fifth as wide
as the flat intervals, which are sparsely and extremely minutely punctulate;
abdomen unmodified, convex, the first suture fine but evident throughout.
Length 4.3 mm.; width 1.85 mm. Brazil (Santarem). One example.

The type is probably a female, as there is no abdominal modifi-
cation. The genus is widely isolated, and I know of none other
that can be in any way compared with it.

Tripusus n. gen.

This is a very singular genus among the typical Madarids, in the
very long and strongly flattened, slender and evenly arcuate beak,
separated by a narrow shallow sulcus, and having prominent non-
decussate mandibles, straight but obtusely dentate within. The
body is rather broadly rhomboid-oval, shining and glabrous through-
out. Antenne at basal third, slender but rather short, the scrobes
mostly inferior, the scape rather short, the funicle shining and
glabrous, the first two joints notably elongate, equal and each as
long as 3-5 together, the outer joints but little larger and loosely
joined, the club small, oval, pointed and as long as the three pre-
ceding joints, with its first segment short, glabrous and shining.
Prosternum evenly convex, unmodified, except by a fine subapical
constriction, and with the posterior lobe truncate, the coxz sepa-
rated by about their own width. Legs well developed, shining,
simple, the femora slightly swollen and the tarsi slender, with
somewhat large arcuate claws. Prothorax not tubulate, the basal
lobe small, very gradually formed and with its apex abruptly and
deeply sinuate for the small and triangular, flat scutellum, the
elytra rather coarsely, deeply and evenly grooved. The pygidium
is very oblique, as wide as long, narrowly rounded, strongly, sparsely
punctate and with a very sharp entire median carina. The type is
the following:

Tripusus filirostris n. sp—Rhomboid-oval, rather convex, shining, deep black,

with very faint zneous lustre, punctured throughout; beak in the type three-
fourths as long as the body, evenly and strongly arcuate, very smooth, but,

BRAZILIAN BARIN 387

behind the antenne, slightly thickened and strongly punctured, beyond the
antennz extremely thin—viewed in profile, moderately wide on the upper flat-
tened surface and ribbon-like; antenna in part piceo-rufous; prothorax fully a
fourth wider than long, the sides feebly converging and barely arcuate, gradually
rounding and then oblique and nearly straight beyond the middle, the apex
truncate and only two-fifths as wide as the base; punctures rather coarse, close
and deep, gradually becoming much smaller and sparse medially; elytra obtusely
oval, only a fifth longer than wide, with deep reéntrant sutural angle, a fifth
wider than the prothorax and three-fifths longer, the umbones obsolete and the
humeri feebly swollen; grooves feebly punctate, half to third as wide as the even
flat intervals, which are strongly but loosely, confusedly punctate; under surface
strongly punctured, the abdomen finely and sparsely. Length 5.5 mm.; width
2.8mm. Brazil (Chapada—campo). November. One specimen.

The type is doubtless a female, and the male probably possesses
some striking sexual peculiarities.

Tripusidia n. gen.

The body in this genus is much smaller than in the preceding and
with very different beak; it is subrhombic-oval, convex, shining,
sparsely clothed with very slender squamules, fine and hair-like in
the single interstitial series. The beak is moderate in length and
somewhat slender, separated by a distinct sulcus and with the
mandibles bifid, arcuate and feebly decussate; antenne medial,
with subinferior scrobes and rather short scape, the first funicular
joint as long as the next two, the second twice as long as wide, the
others transverse but not very compact, increasing in width distally,
the club conic-oval, gradually ogivally pointed, well developed and
about as long as the five preceding joints, its basal segment short,
glabrous and shining as in the preceding genus. Prosternum flat,
with fine subapical constriction, squamose medially and on the large
sinuato-truncate posterior lobe, and with a distinct sinuate inter-
coxal suture, the coxe separated by rather less than their width.
Legs simple, short, the femora somewhat clavate, the tarsi short,
with the fourth joint thick and long, much longer than all the rest,
with the claws strong and divergent. Prothorax only very feebly
and obtusely constricted apically and imperfectly subtubulate, the
basal lobe as in the preceding genus, the scutellum flat and tri-
angular, but more obtuse at base than in Tripusus, the elytra and
female pygidium almost similar. The two species are as follows:

Body moderately stout, rather convex, shining and deep black, with very faint
subzneous lustre; beak (9) not very slender, evenly, feebly arcuate, cylin-
dric, coarsely, longitudinally sculptured at the sides and slightly longer than
the head and prothorax; antenne as described above; prothorax but
little wider than long, the sides moderately converging and evidently arcuate
—very slightly more so anteriad—from base to the very feeble sinuses defining
the tubulation, the latter barely less than half as wide as the base; punctures

388 MEMOIRS ON THE COLEOPTERA

strong, dense and bearing slender whitish squamules laterally, fine, sparse
and nude medially; elytra obtusely oval, with deep sutural reéntrant, nearly
a fourth longer than wide, with feebly tumid humeri, very slightly wider
than the prothorax and one-half longer, the grooves less than half as wide
as the intervals, which bear series of distinct, somewhat irregular punctures;
pygidium vertical, as wide as long, circularly rounded, evenly and strongly
convex and with loose strong punctuation; the abdomen is unimpressed but
with close punctures and fine squamules medio-basally; segments 2-4
subequal in length and very short, the first suture fine but distinct through-
out. Length 3.8 mm.; width 1.75 mm. Brazil (Chapada). November.
One-speciment 7.4.26 Se Raa se. aera teen eae Re ree punctulata n. sp.
Body smaller and narrower, oval, the sculpture, color and lustre similar; beak
(co) more slender and smoother, gradually dilated and more sculptured
behind the antennez, evenly and feebly arcuate and about as long as the
head and prothorax, not flattened distally; antennz piceous, nearly as in
the preceding but distinctly behind the middle; prothorax a fifth wider than
long, nearly as in the preceding but with the close lateral punctures occupying
a narrower area and having longer setiform squamules; apex more tubulate
and less than half as wide as the base; elytra nearly similar but a little
shorter and more obtuse at apex; pygidium nearly as in the type of Tripusus,
but much wider than long, a little more declivous and more obtusely rounded
at apex, and with a deep channel along the apex medially, the carina acute
and the punctures fine and sparse. Length 3.35 mm.; width 1.6 mm.
Brazil (Chapada—campo). October. One specimen......... incerta n. sp.

Although rather similar, I believe the type of zmcerta represents a
species different from punctulata, because of femoral and abdominal
structure. The femora are not clavate and only feebly inflated,
and the second abdominal segment is about as long as the next two
combined, with the first suture completely obsolete medially. The
form of the pygidium and also thoracic lobe, scutellum and elytra
are characters betraying an intimate relationship with Tr1pusus, but
the beak, antenne, vestiture and sculpture are altogether different.

The female has a distinct transverse propygidium wholly obsolete
in the male.

Pycnorthoris n. gen.

The body here is rather small, very evenly oval, convex, shining,
bristling with sparse erect sete and is very coarsely sculptured, the
pronotal punctures dual in size. The beak is rather long, almost
straight, slender, smooth and cylindric, gradually inflated, coarsely
sculptured and herissate with stiff setae very near the base, separated
from the head by a distinct impression, the mandibles bifid and
decussate; antennz inserted between basal fourth and third, slender,
the first two funicular joints notably elongate and equal, the others
short but loose, not much thicker distally, the club oval, as long as
the four preceding joints and abrupt. The prosternum is even,
separating the coxe by distinctly more than their width, the pos-
terior lobe large, extending behind the mesocoxal tangent and
broadly sinuato-truncate. Legs moderate, the femora mutic, the

BRAZILIAN BARINZ 389

tarsi narrow. Prothorax gradually and moderately tubulate, the

small short basal lobe with an equilatero-triangular emargination,
receiving the basal angulation of the small and obtriangular flat, free
and apically truncate scutellum, the elytra deeply grooved, the
pygidium rather small, slightly oblique, semicircular, convex, very
coarsely punctate, feebly ridged along the middle and clothed with
sparse dark hairs. The unique type is as follows:

Pycnorthoris hispidula—Oval, with slightly prominent humeri, deep black
throughout and shining, clothed above with very sparse erect dusky sete, beneath
with slender and subdecumbent, white and very sparse setiform squamules;
beak (@) nearly three-fifths as long as the body, slender, cylindric and smooth,
except at base, just visibly arcuate, the antennz blackish, the scrobes in great

.

part inferior; prothorax short, three-fifths wider than long, the sides converging
and moderately arcuate from base to the feeble apical sinuses, the apex barely
half as wide as the base; punctures coarse, dense and rugulose at the sides,
gradually isolated and mingled with smaller punctures medially, with smooth
median line; elytra obtusely oval, a fifth longer than wide, with broad and feebly
reéntrant sutural angle, slightly wider than the prothorax and not quite twice as
long; grooves nearly smooth, a third as wide as the intervals, which have single
series of strong, moderately separated punctures, bearing the suberect sete; under
surface coarsely, closely punctate, the abdomen evenly convex, the last three
sutures rapidly reflexed at the sides. Length 3.4-3.65 mm.; width 1.7-1.75 mm.
Brazil (Santarem). Two specimens.

A third specimen, agreeing in every way, was received from
Desbrochers des Loges, marked ‘“‘ Amazon.”

Onychobaris Lec.

This genus is abundant in the nearctic regions but apparently
not so developed in species in the tropics, and, in the collections at
hand, is represented by but a single species as follows:

Onychobaris amazonica n. sp.—Stout, oblong-oval, strongly convex, shining
and pale brownish-red throughout, glabrous, the squamules of the under surface
minute and entirely within the coarse punctures; beak evenly arcuate, cylindric,
three-fourths as long as the prothorax, distinctly punctured—nearly smooth in
the female—the antennz well behind the middle, slender and rather short, the
first funicular joint about as long as the next three, the outer three joints a little
longer, the club narrow, as long as the four preceding joints, gradually pointed
from behind the middle, its basal segment two-fifths the mass; prothorax large,
two-fifths (c) to nearly half (2) wider than long, the sides rather strongly,
subevenly arcuate, gradually parallel basally; apex very briefly and feebly
subtubulate, half as wide as the base; basal lobe rather large, gradual, evenly
rounded; punctures strong, dense and longitudinally rugose at the sides, gradually
isolated inwardly and fine and sparse medially, with'rather wide smooth median
line; scutellum small, closely fitted, flat and equilatero-triangular; elytra short,
oval, very little longer than wide, with feebly tumid humeri, about as wide as the
prothorax and one-half (<”) to two-thirds (9?) longer; grooves deep, nearly
smooth, fully a third as wide as the intervals, which have series of coarse and
rather close, transverse punctures, pygidium vertical, large, evenly rounded and

390 MEMOIRS ON THE COLEOPTERA

more than twice as wide as long (<”), or much smaller but transverse and semi-
circular (@), closely punctate; abdomen scarcely modified in the male, the last
three sutures very coarse; anterior coxe widely separated, the posterior prosternal
lobe broad, extending rather behind the mesocoxal tangent and feebly sinuato-
truncate. Length 2.2-2.5 mm.; width 1.3-1.4 mm. Brazil (Santarem). Five
specimens.

This species agrees rather well structurally with the northern
forms, but the thoracic punctuation is much less uniform.

Micromadarus n. gen.

In this well defined genus the body is very small for the present
section, stout, suboblong-oval, convex and subglabrous, the elytra
with dense basal squamose areas somewhat as in Linomadarus.
The beak is moderate, cylindric, gradually more arcuate distally,
very feebly sculptured, separated by the faintest possible broad
impression and with the mandibles obtuse at apex, non-decussate,
straight and dentate within. The antennz are very slightly post-
median, the first funicular joint as long as the next three, the second
barely longer than wide, the others moderately transverse, increasing
in size, the club large, oval, as long as the six preceding joints.
Prosternum peculiar, being elevated in a strong narrow transverse
ridge between the coxze, thence sloping upward and feebly concave
to the apex, the posterior lobe scarcely at all evident, but on a level
with the mesosternum, the coxz separated by one-half more than
their width. The legs are slender, the femora not at all inflated,
minutely denticulate beneath, the tarsal claws short and arcuate.
The prothorax is abruptly tubulate, the basal lobe very short and
feeble, broadly rounded, the scutellum closely fitted, ogival and the
elytra deeply but not coarsely grooved. The pygidium in the type
is small, vertical, transverse, rounded beneath, flat and densely
punctate. The type is the following:

Micromadarus collaris n. sp.—Oblong-suboval, convex and deep black through-
out, moderately shining, the elytra somewhat alutaceous; beak (<) evenly
cylindric, shining, finely, sparsely punctate, distinctly arcuate, straighter basally
and a fourth longer than the head and prothorax; antenne blackish; prothorax
large, nearly a third wider than long, the parallel sides unevenly arcuate, very
rapidly rounding and subtransverse at apex to the tubulation, which is somewhat
more than half as wide as the base; disk widest at basal third; punctures nude,
moderate in size but deep, dense laterally, a little smaller and well separated
medially, without well defined smooth line; elytra small, oval, but little longer
than wide, not wider than the prothorax and only two-fifths longer; grooves
narrow, smooth, becoming coarser and somewhat crenate basally, the intervals
glabrous, finely but distinctly and confusedly punctate, the second and third
each with an oblong spot of dense whitish scales at base, the outer the longer;
male abdomen minutely, sparsely punctate, shining, with a very feeble simple
medio-basal impression, the first suture almost obsolete. Length 2.8 mm.;
width 1.3 mm. Brazil (Santarem). One specimen.

BRAZILIAN BARIN 391

Each of the coarse sternal punctures bears a very slender setiform
white squamule.
Hulpesellus n. gen.

The body here is narrow, cuneiform, polished, very smooth and
glabrous, with a few sparsely dispersed slender white elytral squam-
ules. Beak very smooth, cylindric, not very slender, evenly and
moderately arcuate, separated by a distinct sulcus and with prom-
inent, non-decussate mandibles, which are straight and but feebly
irregular within, the left somewhat shorter than the right. An-
tennz submedial, somewhat as in the preceding, the club smaller,
oblong-oval. Prosternum apparently somewhat impressed along
the middle, separating the coxe by barely their own width, the
posterior lobe broad, slightly produced and broadly sinuate. Legs
rather long, the femora not inflated, strongly and acutely dentate
beneath beyond the middle, the tarsi and claws well developed.
Prothorax very gradually tubulate, the basal lobe wide, rather
short and broadly, evenly rounded, the scutellum closely fitted,
small, flat, as long as wide and evenly ogival, the elytra with fine
but deep and sharply defined smooth grooves, feeble subapical
tumidities and feebly tumid humeri. The pygidium is small,
transverse, vertical, punctate, flat and evenly rounded, concealed
from above by the more extended elytra. The single species is
the following:

Hulpesellus cuneiformis n. sp.—Narrowly cuneiform, convex, polished, deep
black; beak (92) polished, minutely, sparsely punctulate, rather thick, a fifth
longer than the head and prothorax, the latter inflated basally, a fourth wider
than long, the sides strongly, subevenly arcuate, becoming gradually parallel
toward base, the arcuato-truncate apex half as wide as the base; surface very
smooth and completely impunctate, glabrous; elytra one-half longer than wide,
equal in width to the prothorax and three-fourths longer, the oblique sides long,
only feebly arcuate, the apex rapidly obtuse, without reéntrant sutural angle;
grooves impunctate, a fourth or fifth as wide as the intervals, the latter flat,
perfectly smooth; surface feebly undulate, with a few white squamules on the
first interval at basal sixth, a narrow streak of seven or eight on the second in
basal fifth and three or four at the base of the third, also very few in short post-
median lines on intervals 4-6; coarse sparse sternal punctures each with a slender
white squamule, the abdomen glabrous and polished, almost impunctate, the
first segment as long as the next three, which are short and subequal, the first
suture deep and entire; sexual impression wholly wanting. Length 4.0 mm.,;
width 1.8 mm. Brazil (Santarem). One example.

A species easily identifiable by the strong inferior tooth of the
femora, general cuneiform outline and peculiar disposition of the
very few long slender white elytral squamules.

Parasolaria n. gen.

Although the femora are wholly unarmed in this genus, I have
placed it near Solaria because of a certain similarity in habitus, it

392 MEMOIRS ON THE COLEOPTERA

having merely a rather narrower form of body, with stouter beak,
larger antennal club, transversely sublunate scutellum and larger
pygidium. The body is glabrous and polished, the beak rather
short, not tapering, arcuate, subcylindric and moderately punctate,
the mandibles very strongly, acutely dentate and decussate, and it
is separated from the head by a rather distinct sulcus. The an-
tenne are submedial (o”) or post-medial ( @ ), with short scape and
stem and large oval club, the first funicular joint as long as the
next three, the others increasing in width, very transverse and
compact. The flat prosternum separates the anterior coxe by
scarcely their own width. The prothorax is not or very faintly
tubulate at apex, the basal lobe prominent and abruptly formed,
rounded at apex, the scutellum moderate in size, transversely
lunate, the elytra abruptly grooved and the pygidium vertical,
scarcely wider than long and coarsely punctate. The type species
is as follows:

Parasolaria lobata n. sp.—Oblong-suboval, deep black, polished and glabrous
throughout; beak (co) feebly, evenly arcuate, not tapering, distinctly shorter
than the prothorax and somewhat strongly punctured, or (9) longer and even
somewhat thicker, but more tapering distally, more arcuate and a fourth longer
than the head and prothorax, finely and sparsely punctate, the antennz piceous,
near basal third; prothorax two-fifths to one-half wider than long, the sides,
feebly converging and nearly straight, rapidly rounding beyond two-thirds,
oblique and feebly sinuate to the apex, which is prominently lobed medially,
less so in the female and much more than half as wide as the base; punctures
strong but well separated, gradually smaller and sparser medially, with rather
wide smooth median line; elytra oval, nearly one-half (<), but only a fifth (9),
longer than wide, evidently wider than the prothorax and two-thirds (o’) to
one-half (9) longer; grooves deep, punctate, a third as wide as the intervals,
which become slightly carinulate laterally, the interstitial punctulation uniserial
and infinitesimal; first ventral suture wholly obsolete throughout; male ventral
characters not evident. Length 2.7-3.0 mm.; width 1.3-1.5 mm. Brazil
(Chapada—forest). Two specimens.

If the two specimens representing this species are correctly
assigned, there is a rather unusual amount of sexual divergence, but
on the whole, partaking of the nature of these differences in Cono-
proctus and others, where the male is notably larger than the female;
but here, the female beak is distinctly longer than that of the male;
it is somewhat flattened distally in both sexes and very much
broader than in Solara.

Solaria Chmp.

In this genus the body is more broadly oblong-oval, with more
developed prothorax, small antennal club, more gradually formed
and rounded thoracic lobe, smaller and equilatero-triangular scu-
tellum, smaller pygidium and distinctly denticulate femora. There
seems to be but little sexual difference, the beak in the male smaller

BRAZILIAN BARINZE 393

than in the female, less arcuate and less tapering distally; it is
cylindric and finely, sparsely punctate in both sexes, and is separated
from the head by a very feeble impression. The mandibles are
small, bifid and decussate and the antennz post-medial, the funicle
much longer and more slender than in the preceding genus. The
prosternum is flat and separates the coxe by distinctly more than
their own width. ‘The first ventral suture is extremely fine and
feeble, the second segment barely longer than the third or fourth
and very much shorter than the first. The two species at hand
have the beak much shorter and the elytral grooves very much less
punctate than in the Panama species identified as curtula by Cham-
pion, and they may be described as follows:

Body stout, ovoidal, somewhat attenuate behind, convex, glabrous, shining and
black throughout; beak (<) distinctly shorter than the prothorax, evenly
and distinctly arcuate and only very feebly and gradually tapering distally,
or (9) slightly longer, more arcuate or rather more bent medially, and
thence more rapidly tapering, shining in both sexes, the antenne blackish,
the club gradually formed; prothorax large, barely two-fifths wider than
long, the sides very feebly converging and just visibly arcuate, rather rapidly,
evenly rounding anteriorly to the very short and gradually and feebly
subtubulate truncate apex, which is much less than half as wide as the base,
rather coarsely but loosely punctate, longitudinally rugose at the sides, the
punctures gradually less coarse and sparser medially, the smooth line feebly
defined and not entire; elytra parabolic, only about a fifth longer than wide,
barely visibly wider than the prothorax and three-fifths longer; grooves
coarse and strongly punctate laterally, narrower and less punctate internally,
a third or fourth as wide as the intervals, which are somewhat strongly but
unequally punctate; pygidium small, vertical, densely punctate and sub-
similar in the sexes; abdomen without sexual modification. Length 3.0-
3.2 mm.; width 1.6-1.8 mm. Brazil (Chapada). May. Seven specimens.

pinguicula n. sp.

Body smaller and still more abbreviated, convex, polished, deep black; beak
(os) nearly as in the preceding but subequal in length to the prothorax,
which is much shorter, fully one-half wider than long, the sides strongly
arcuate, gradually less so and parallel posteriorly, the apex even less subtubu-
late, in fact not tubulate and nearly half as wide as the base; punctures strong,
forming rather less coarse, loose longitudinal ruge at the sides, well defined
and rather strong but sparse medially, the smooth line subentire; elytra
still shorter, only a little longer than wide, the similarly oblique sides nearly
straight, rather obtusely rounding at apex, at the feebly tumid humeri only
just visibly wider than the prothorax, two-thirds longer; grooves narrower
and much less punctate, the interstitial punctures distinct, more transverse
in certain lights. Length 2.6 mm.; width 1.28 mm. Brazil (Chapada).
WMiaivig MORI: SE CIIMEIN gia. c. 5 0e ie ol «ola yniaiver ol toe p= 2) > loners chapadana n. sp.

The under surface of the body in all the known species is very
coarsely, closely and conspicuously punctured.

Madarellus Csy.

This is a rather large genus, distributed from the subarctic to
subantarctic regions in the American continents, but apparently

394 MEMOIRS ON THE COLEOPTERA

not occurring near the Pacific coast-line. The body is smaller and
much more abbreviated than in Madarus, usually with distinctly
cuneiform outline, with glabrous, smooth and polished integuments
and strongly undulated elytra. The femora are denticulate be-
neath, though never as strongly as in Hulpesellus, and it is some-
times a partially obsolete character as in Linomadarus. Ihave been
unable to note the entire absence of the tooth on the anterior
femora, however. The beak is cylindric, arcuate and varies in
length from rather short, as in sortitus, to notably long, as in oblon-
gulus, separated by a very feeble wide impression and with the
mandibles prominent when closed and denticulate within. The
antenna are somewhat as in Hulpesellus, submedial and with rather
narrower but well developed club. The prosternum separates the
coxe by about twice their width as a rule, and is flat, often as in
sortitus with two small apical foveze, each continued posteriorly by
an inwardly oblique impressed line to a point midway between the
coxe, the intermediate surface with a small medial tumidity. The
nine species now considered are the following:

Tooth of the anterior femora quadrate, oblique and broadly truncate; body very
smooth, deep black throughout and anteriorly inflated.................. 2
Tooth triangular; body not, or much less, inflated anteriorly, the surface not
maculate, except feebly in serzatus; thoracic surface normally convex antero-

laterally: ccc. cpoemee, tebe: cite thas a ArRne & acy Bocuse ogee HOTS a ae eas eae eee I 5
Tooth parallel-sided, oblique, rounded at tip; body cuneiform, the elytra with a
transverse re dilascia an seepeak calamities 8 sisieko zoe Cal oe OE aoe ae 10

2—Elytral striz obsolete and consisting of series of moderate punctures, except
at the sides and apex, where they are fine and smooth..................3

Elytral striz in the form of narrow and sharply defined, deep, impunctate grooves
throughout the width, but coarser and feebly crenulate laterally.......... 4

3—Body broad and rapidly cuneiform, convex, polished, black and smooth above,
in great part very coarsely, deeply punctate beneath, less strongly and in
part rugulose on the inferior thoracic flanks; beak rather thick, cylindric,
finely, loosely punctate, as long as the head and prothorax (<), slightly
less thick and as long as the prothorax (9), the smooth blackish antenne
behind the middle; prothorax fully two-fifths wider than long, the sides
parallel and feebly arcuate, very rapidly and abruptly, transversely conver-
gent at apex to the tubulation, which is much less than half as wide as the
base; surface strongly convex as seen in profile, smooth, finely, sparsely
rugulose at the sides and, anteriorly, asperate at the abrupt narrowing, the
surface antero-laterally concave and smooths; basal lobe broad and evenly
arcuate as usual, the scutellum triangular; elytra scarcely a fifth longer
than wide, not as wide as the prothorax and less than one-half longer, para-
bolic, with moderately tumid humeri and distinct subapical umbones;
pygidium small, vertical, feebly convex, evenly rounded beneath and much
wider than long; abdomen nearly smooth, the basal segment rather strongly,
sparsely punctate; sexual differences very feebly marked. Length 3.8-4.3

mm.; width 2.0-2.3 mm. Brazil (Santarem). Four specimens.
truncatidens n. sp.

BRAZILIAN BARIN 395

Body somewhat as in the preceding, the color, lustre and sculpture almost similar,
the size smaller, the subapical angulation of the prothorax much less con-
spicuous and more obtuse, the antero-lateral concavity of the surface much
less pronounced; beak thick, arcuate, as long as the head and prothorax,
the antenne medial; prothorax similarly convex, not quite so transverse,
the parallel sides a little more arcuate, the tubulation relatively wider, half
As wide as the base; surface similarly smooth and with a regular line of
punctures along the basal margin as in the preceding; elytra nearly similar,
the pygidium not so transverse, similarly densely punctate; under surface
almost similar. Length 3.4 mm.; width 1.75 mm. Brazil (Santarem).
Oe a EMEMI a fe, crake wip ols 2 zien Stop) oi) Wledayr yale mye HED 2 ara si-'6) 3h) amnicola n. sp.

4—Form, color and sculpture—other than that of the elytra—nearly as in the
two preceding; beak similarly sculptured and arcuate but longer and a
little less thick, somewhat longer than the head and prothorax, the antenne
behind the middle; prothorax not quite so convex—viewed in profile, scarcely
more than a third wider than long, the parallel sides distinctly arcuate, the
subapical angle rather more obtuse when viewed from above, the tubulation
narrower, much less than half as wide as the base, the head smaller; surface
less smooth, sparsely, finely punctulate at apex and near the sides, the lateral
rugulosity rather more pronounced; descending antero-lateral ridge de-
limiting the concavity much more pronounced than in amnicola, and even
more prominent than in truncatidens; basal line of punctures similar; scu-
tellum similarly triangular, but more minute; elytra nearly similar in form
and relationship, but quite different in sculpture, the surface with more
evident minute punctulation laterally; pygidium nearly similar but more
finely punctate; under surface nearly as in the two preceding, the legs
shorter. Length 3.15 mm.; width 1.7 mm. Brazil (Santarem). One

FOES UTTtlce tae One oa Mn aac I eae amazonicus Nn. sp.
5—Femoral tooth distinct; strial intervals smooth or nearly so; prothorax not
mideminan the elyttals fins. bcc ee dey Ae eee ee 5s FE a ee Sart 6

Femoral tooth very minute; strial intervals coarsely, uniserially punctate, the
punctures obsolete toward the suture; prothorax more inflated, slightly

mae Rapa snes CL VEGAN He pis taster) Slo Pevcbeetora che. Auerat sein the se cgotewiennte oa siey IaS Te 9
6—Prothorax about as wide as the elytra..........-----seeereer reese 7
Prothorax evidently narrower than the elytra... ...+---+-+ssescsssrtrtrcse 8

7—Integuments shining, glabrous, black, the prothorax very faintly picescent;
beak rather short, not quite as long as the prothorax, feebly and gradually
tapering, evenly arcuate, somewhat strongly but loosely punctate, the
antenne a little behind the middle; prothorax two-fifths wider than long,
the sides strongly, subevenly arcuate, gradually less so and parallel behind
the middle; tubulation short, feebly sinuate medially, not quite half as wide
as the base; surface smooth, minutely punctulate, longitudinally rugulose
at the sides, the basal series as usual; scutellum small, ogival; elytra scarcely
a fifth longer than wide, the oblique sides nearly straight, the apex rapidly
and somewhat broadly obtuse, one-half longer than the prothorax; grooves
sharply marked throughout, exarate apically; intervals smooth, feebly
punctulate laterally; pygidium small, almost flat, densely punctate and
semicircular; metasternum very coarsely, perforately punctate; legs rather
short. Length 3.0 mm.; width 1.65 mm. Brazil (Chapada). March.
Mie species ee aan apiece mes wana seers Set sortitus n. sp.
Integuments polished and glabrous, black, the prothorax dark rufous; beak more
slender than in the preceding species, evenly arcuate, smooth, cylindric,
dilated, compressed and finely, sparsely punctate at base and a little longer
than the head and prothorax; antenne subinferior and at basal third;

396 MEMOIRS ON THE COLEOPTERA

prothorax very convex—viewed in profile, nearly two-fifths wider than long,
the sides parallel and feebly arcuate, rapidly rounding and oblique in about
apical third, the distinct tubulation much less than half the basal width;
surface minutely, sparsely punctate, much more distinctly so and then rugu-
lose toward the sides, with the usual basal series; scutellum as in the pre-
ceding; elytra as in sortitus, but more evidently punctulate toward the sides,
the humeri rather distinctly swollen; pygidium nearly similar but larger;
body larger, similarly punctured beneath; abdomen without sexual modi-
fication. Length 3.6 mm.; width 1.8 mm. Brazil (Chapada). December.
One female Specinient <5. 222e ie = pace. es Hee woe chapadanus n. sp.
8—Body much larger, broadly ovoidal, deep black, smooth and polished, glabrous
as usual; beak long, slender, strongly, evenly arcuate, very smooth and
cylindric, even and not at all thickened at base and three-fifths as long as
the body; antennz near basal third, with the first funicular joint unusually
elongate, as long as the next four joints; club as long as the preceding five,
cylindric, with ogival apex; prothorax only moderately convex in profile,
three-fifths wider than long, the sides distinctly, subevenly arcuate, widest
very near the base; tubulation strong, nearly half as wide as the base;
surface smooth, very feebly subrugulose at the extreme sides, the tubulation
with some minute punctulation, the basal series very fine; scutellum tri-
angular, more transverse than in any of the preceding, twice as wide as long;
elytra but little longer than wide, obtusely oval, the oblique sides feebly
arcuate behind the notably tumid humeri, evidently wider than the prothorax
and nearly two-thirds longer; strie distinct laterally and toward base,
deeply and coarsely exarate at apex, but elsewhere very fine, feeble and
distantly punctulate; pygidium as usual; under surface sparsely punctate,
the abdomen smooth, with the first suture as coarse and deep as 2-4, being
very different from the extremely fine or obsolete first suture of the other
species. Length 4.9 mm.; width 2.7mm. Brazil (Santarem). One female
SPOR IMEH 2s pie. cick 8 Gerardo ae myth ee Ns aan oblongulus n. sp.

Body small, smooth and polished, dark rufous, the legs and beak black, the elytra
more obscure than the pronotum; beak short, barely as long as the head
and prothorax, evenly and moderately arcuate, slender and smooth, feebly
thickened and distinctly punctured at base; antenne at basal third, having
the usual structure; prothorax rather strongly convex in profile, two-fifths
wider than long, the sides strongly, evenly arcuate beyond, subparallel and
feebly arcuate behind, the middle, the tubulation very short and feeble and
almost half as wide as the base; surface smooth, feebly, longitudinally
rugulose at the sides, the basal series close-set, but broadly subobsolete at
the middle; scutellum small, ogival, as wide as long as usual; elytra obtusely
oval, a fifth longer than wide, with distinctly but obtusely tumid humeri,
evidently wider than the prothorax and three-fifths longer; grooves deep
and sharply defined, smooth, fine suturally, the intervals smooth; pygidium
small, vertical, densely punctate and semicircular; under surface closely,
strongly punctured, the abdomen finely and sparsely, the first suture very
fine and obsolescent. Length 2.85 mm.; width 1.5 mm. Brazil (Chapada).
May. In forest clearings, on flowers. One female specimen.

rufopiceus n. sp.

9—Form stout, subcuneiform, small in size, polished, black, with zneous lustre,
each elytron very feebly and nubilously rufous at the centre and near apex;
beak evenly arcuate, cylindric, moderately slender, finely, loosely punctulate,
even in thickness throughout and somewhat longer than the head and pro-
thorax; antennze near basal third; prothorax rather strongly convex in
profile, three-fifths wider than long, the sides parallel and strongly arcuate,

BRAZILIAN BARIN 397

rapidly rounding and convergent near the apex, which is strongly tubulate;
surface with remote infinitesimal punctulation, gradually more distinct later-
ally and rugose at the sides, the basal series very distinct and entire; scutel-
lum very small, equilatero-triangular; elytra barely longer than wide, para-
bolic, with feebly tumid humeri, slightly narrower than the prothorax and
barely one-half longer; surface less undulate than in any of the preceding,
the grooves coarse and deep, finer suturally, the sculpture as defined above;
subapical umbones small but: prominent; pygidium as usual; under surface
very coarsely, densely punctured, the first abdominal segment rather strongly
and closely, the others feebly, the first suture obsolete at least medially.
Length 2.65 mm.; width 1.45 mm. Brazil (Santarem). One specimen.
‘ seriatus n. sp.
10—Body small, cuneate, polished, black, with strong neous lustre above, the
elytra with a very nearly entire transverse medial, nubilously red fascia;
beak rather slender, very evenly cylindric, evenly arcuate, finely, loosely
punctulate and as long as the head and prothorax; antenna somewhat
beyond basal third; prothorax moderately convex in profile, two-fifths wider
than long, the sides parallel and moderately arcuate, rounding rapidly and
becoming subtransversely convergent beyond the middle, the strong tubula-
tion narrow, only about two-fifths as wide as the base; sculpture and the
scutellum nearly as*in the preceding; elytra but slightly longer than wide,
parabolic, with slightly tumid humeri, not quite as wide as the prothorax
and one-half longer; grooves deep, somewhat crenate, fine suturally, the
intervals smooth in about inner, strongly and closely, confusedly punctured
in outer, half, except toward apex and on the humeri; scutellum finely,
closely punctate, twice as wide as long and circularly rounded; under surface
nearly as in the preceding, the punctured first abdominal segment with a
very small and feeble medial impression; middle and posterior femora with
small simple acute inferior denticle. Length 2.4 mm.; width 1.35 mm.
Brazil (Chapada). November. A single male specimen... .balteatus n. sp.

Oblongulus evidently constitutes a distinct subgeneric group, not
only in the more elongate first funicular joint, but more especially
in the extraordinary first abdominal suture. Because of the long
first funicular joint and transverse scutellum, it is probable that the
Nicaraguan caseyi Solari, is allied to oblongulus, but the beak is
much shorter and the sculpture quite different; casey is united with
cuneatus Csy., by Mr. Champion, but it bears no close resemblance
to that species, differing besides in the scutellum and in antennal
structure. Seriatus and balteatus, together with fasciatus Kirsch,
also form a very distinctly characterized group of the genus, to
which the central Brazilian rufescens and maculatus of Solari may
also be assigned.

Paramadarus n. gen.

A single species of moderately large size and very peculiar appear-
ance alone constitutes this genus at present. The body is oblong-
suboval, somewhat cuneiform in the male, with vestiture of complex
design, and, in profile, the upper surface ascends upward anteriorly
from the base of the prothorax. The beak (<) is long, straight,
arcuate in about distal half, not separated from the head and with

398 MEMOIRS ON THE COLEOPTERA

peculiar mandibles, these being subvertical in plane and broadly,
deeply bifid at apex, or (@) shorter, a little more slender and
distally smoother, but otherwise nearly similar; antennez at three-
sevenths (o”) or barely behind the middle (2), slender, moderate
in length, the first funicular joint as long as the next two, the second
between two and three times as long as wide, the outer joints loose,
the seventh nearly as long as wide and densely pubescent, the club
small, narrowly oval, pointed and as long as the three preceding
joints. The prosternum is very large, even, with subobsolete
constriction, flat and horizontal behind, ascending beyond the inter-
coxal line, the suture wholly obsolete; posterior lobe not produced,
very broadly and shallowly’ sinuate, the coxe separated by nearly
three times their width. The legs are rather long and simple, the
anterior longer, especially in the male, the anterior femora with a
small sharp inferior denticle, the others with the denticle very
minute or sobobsolete; the anterior tarsi are rather broad, the
claws moderate. Prothorax strongly and narrowly tubulate at apex
(o), or very briefly and more broadly (2), the basal lobe large,
prominent and angulate, the scutellum extremely short, transverse
and arcuate, the elytra coarsely, deeply and unevenly striate and
the pygidium subvertical in both sexes, small, feebly convex and
rounded. ‘The type can be briefly described as follows:

Paramadarus complexus n. sp.—Rather broadly, feebly cuneate-oval and
somewhat depressed above, deep black, the integuments shining, but clothed in
great part with a mixture of white and fulvous scales, dense in an oblique pronotal
line at lateral third and thence unevenly aggregated to the sides, on the elytra
unevenly aggregated and with a glabrous space about the scutellum, at the
middle of the suture and near the apex of each, also with dense whitish spots,
remotely arranged along parts of the intervals, close, fulvous and with uneven
condensations throughout the under surface, except broadly along the middle of
the abdomen, this being abruptly glabrous; beak three-fifths as long as the body
(%), about one-half (@), cylindric, closely and strongly punctate and with
fulvous squamules basally, smoother and glabrous (@) beyond the antenne,
which are nearly black;. prothorax large, a little more convex anteriad, as viewed
in profile, a fifth (co) or more than a fourth ( 2 ) wider than long, the sides parallel
and feebly arcuate in basal, oblique in apical, half; surface abruptly glabrous
and minutely, sparsely punctate in median third, thence to the sides coarsely,
unevenly and subrugosely punctate; elytra rapidly subparabolic, a fourth longer
than wide, equal in width to the prothorax and less than one-half longer; humeral
swelling subobsolete; surface somewhat uneven; alternate intervals feebly convex
and flat, with strong and more or less sparse, uneven punctures, the coarse striz
also punctate and squamose. Length 7.2-9.2 mm.; width 3.25-4.0 mm. Brazil
(Chapada). Nine specimens.

In the male, the abdomen has a small feeble simple and nude
indentation at the middle of the apex of the first segment. The
first suture is fine but distinct.

BRaviian BARINZE 399

Linomadarus n. gen.

The type of this proposed genus is the Madarus vorticosus of
Boheman, inhabiting the Central American region; it is a large
group, including many South American species, all of which are much
more glabrous than vorticosus. The body is smaller, narrower and
more convex than in the preceding, subcuneate or elongate-oval in
outline and apparently with very feebly marked sexual differences.
The beak is moderate in length, evenly but moderately arcuate,
separated from the head by a very feeble impression and with the
mandibles somewhat as in the preceding, being strongly and very
widely bifid; it is fully as long in the female as in the male, but, in
the former sex, is abruptly narrowed, smooth and cylindric beyond
the antenne asa rule. The antenne are medial (<7) or distinctly
post-medial (@), the first funicular joint as long as the next three,
the second but little longer than wide, the club rather small, oval
and pointed. The prosternum is almost as in the preceding genus
throughout, the coxee separated by about three times their width.
The prothorax is briefly and feebly to strongly and abruptly tubu-
late at apex, equally in the sexes, the well developed basal lobe
evenly rounded, the scutellum moderately transverse and lunate,
angulate behind, and the elytra may be abruptly but smoothly and
finely grooved or with fine or obsolete stria, marked by series of
fine punctures, somewhat as in Madarellus; but here, the surface is
not or only very feebly undulated. The pygidium is small, vertical,
evenly rounded, nearly flat and densely punctate. The anterior
legs are longer in the male, with the tarsi broader and the femora
may be minutely denticulate beneath or unarmed. The South
American species at hand are the following:

Third strial interval with a short basal line of dense and usually whitish decum-

[DEtMmS ota Steere rss terete! 2. cyt cote chore Peasy Ain ach RapAoNede« i ie Se tage Noy 8 2
Third interval with a small spot of dense squamules, at about basal fourth... ..9
Third interval and entire integument above and beneath completely glabrous.. 10
2—Basal lines of squamules longitudinal and not quite attaining the basal margin

SORIQIURL SMT OUCH Poe EM ar DG. mO A: eCiaeaeh Sap eatin. Soemee iets tlh OPS SEAT ROLE D TE 3
Basal lines oblique and attaining the basal margin; striz fine but abruptly
sroovedsimpuncrate:s beak longer andithinner.. + 2). Wack see eee. 8
3—Striz very fine and subobsolete, finely punctulate.....................6. 4
Striz fine but deep and abruptly grooved, impunctate; body slightly though appre-
Glablypless elongates. chad erates! sears Mast ne alae iationn dats SER tt volal 6 Behind. tle 7
4—First ventral suture deep and very distinct; femora long and slender, mutic,
the intermediate with a very feeble angulate tooth beneath.............. 5
First ventral suture very fine, feeble and subobsolete........................ 6

5—Body elongate, suboval, convex, polished and deep black throughout; beak
(@) as long as the head and prothorax, evenly arcuate, smooth and cylindric,
rapidly thickened and distinctly punctate in barely more than basal two-
fifths, the antenne at two-fifths, black; prothorax subquadrate, a fifth or
sixth wider than long, the parallel sides scarcely arcuate, gradually rounding

400

MEMOIRS ON THE COLEOPTERA

beyond the middle to the abrupt constriction, the tubulation parallel, dis-
tinctly less than half as wide as the base; surface smooth, very minutely
punctulate toward the sides; elytra three-fifths longer than wide, about as
wide as the prothorax and two-thirds longer, the sides subparallel, gradually
arcuate behind to the rapidly obtusely rounded apex; strie strongly grooved
at apex; intervals smooth and flat throughout; squamules of the basal line
long, very dense and brownish-white; anterior coxe very remote, the short
posterior lobe rectilinearly truncate. Length 7.0 mm.; width 3.0 mm. Peru.
One example. subnimius n. sp.

Body nearly similar in color, lustre, sculpture and general characters, but narrower

and with the sides of the elytra more oblique and feebly, evenly arcuate
from the moderate humeral swellings to the less broadly rounded obtuse
apex; beak (@) nearly similar but as long as the head and prothorax, and
with the abruptly thickened part occupying basal three-sevenths; prothorax
nearly a fourth wider than long, the sides feebly converging and very slightly
arcuate, gradually rounding beyond the middle—transversely at the abrupt
tubulation—nearly as in the preceding; surface similar; elytra also nearly
similar throughout in proportions and sculpture; pygidium a little less flat
and more densely punctate. Length 6.4 mm.; width 2.5 mm. Upper
Amazon basin (Ghanchormeavo) setae aie ie cee elongatus n. sp.

6—Form subcuneate-oval, convex, polished and deep black throughout; beak

evenly but moderately arcuate, as long as the head and prothorax, cylindric,
not very slender and minutely, remotely punctulate, very gradually just
visibly thicker and more strongly, closely punctate in nearly basai half;
antenne barely visibly behind the middle, black; prothorax a fifth wider
than long, the sides feebly, subevenly arcuate, more parallel posteriad, the
apical constriction deeply angulate and abrupt, the tubulation three-sevenths
as wide as the base; surface remotely, infinitesimally punctulate, more dis-
tinctly and in series toward the sides of the apical constriction; elytra two-
fifths longer than wide, the sides slightly oblique and nearly straight, arcuate
gradually behind to the circularly obtuse apex, barely as wide as the prothorax
and three-fifths longer; stria deeply grooved toward apex and also toward
the sides, except basally; pygidium rather finely, densely punctate, sub-
semicircular and flat, with a feebly tumid median line; femora slender, the
anterior legs notably longer than the others, the inferior spicule minute.
Length 4.6-4.8 mm.; width 1.8-2.0 mm. Brazil (Santarem). Two speci-
PCTS 2 hs, 5 A ests Stay ete ats a bgpee MT nai nent ote ag sete ee eee Rates perlevis n. sp.

Form nearly similar but larger in size and with longer legs, polished, black;

beak (@) as long as the head and prothorax, evenly arcuate, rather slender,
smooth and cylindric, rapidly thickened and strongly but sparsely punctate
behind the antennz, which are at about two-fifths, or (o”) very little shorter
and very evenly and slightly tapering from base to apex, minutely, sparsely
punctate, gradually a little more strongly but sparsely toward base, the anten-
nz well behind the middle, blackish; prothorax convex, only a fifth or sixth.
wider than long, the parallel and feebly arcuate sides gradually more strongly
rounding beyond the middle, the abrupt tubulation half as wide as the base;
surface with very minute, sparse punctulation; elytra one-half longer than
wide, barely as wide as the prothorax and one-half longer, or less (<%), the
oblique sides nearly straight, gradually obtusely rounded behind, the sculp-
ture and basal squamulose line nearly as in the preceding; legs longer than
in most of the other species, slender, the anterior much longer than the
others in both sexes; spicule extremely minute; abdomen with a very feeble
medio-basal impression in the male. Length 5.6-6.0 mm.; width 2.3-2.55
mm, Brazil\(Santarem))s\ Sixispecimensses en sae subtilis n. sp.

BRAZILIAN BARINA 401

7—Body moderately stout, convex, polished, black, the elytra slightly more
cuneate in the male; beak (<”) not as long as the prothorax, rather thick,
strongly arcuate, evenly but only feebly tapering, rather coarsely, loosely
punctate, finely and sparsely beyond the antenne, or (?) as long as the
head and prothorax, equally thick and almost as strongly punctured basally,
but evidently, though not abruptly, less thick and subimpunctate in apical
four-sevenths; antenne blackish, medial (co) or near two-fifths (2); pro-
thorax less convex than in the two preceding and shorter, fully a third wider
than long, the sides broadly, feebly arcuate, parallel at base, abruptly con-
stricted at apex, the tubulation distinctly less than half as wide as the base
in both sexes; surface very minutely, remotely punctulate; elytra only a
fourth to third longer than wide, parabolic, barely as wide as the prothorax
and one-half to three-fifths longer, the humeri feebly swollen; grooves im-
punctate, a fifth or sixth as wide as the intervals, coarse and exarate apically ;
intervals with sparse infinitesimal punctulation; squamose line of the third
short and distinctly separated from the basal margin; pygidium small,
semicircular, closely punctate, a little more convex in the male, the latter
with the medio-apical region of the more punctate first ventral just visibly
impressed; prosternum with two small apical foveze, only very briefly
prolonged; legs not as long as in the two preceding, the anterior femora (o")
finely dentate beneath. Length 4.7-5.0 mm.; width 2.15-2.28 mm. Brazil
(Santarem). Eight specimens......-...-.+-+s+sssereeereeee morio n. sp.
Body smaller and narrower, similar in color, lustre and sculpture; beak (<”) less
thick and longer, as long as the head and prothorax and differing also in
being very evenly cylindric, not at all tapering distally, evenly arcuate, the
sparse punctures less coarse; antenne blackish, submedial; sides of the
prothorax evenly arcuate and slightly converging from base to the abrupt
apical constriction, the tubulation less than half as wide as the base; elytra
throughout nearly similar but narrower; pygidium shorter, the punctures
similarly deep but not so large and denser; impression at the apex of the
first ventral narrower, smaller and more definite; legs slender and shorter,
the anterior much shorter than in the preceding and with still more minute
inferior denticle. Length 3.9 mm.; width 1.73 mm. Brazil (Santarem).
QE SAE CINC TU OA als Sabale,cuce o1¥) ois bahossie’= lngeyeiee a ayey Crete ye erase simulator n. sp.
8—Form rather stout, attenuately ovoidal, convex, deep black and polished;
beak (9) nearly as long as the head and prothorax, slender, smooth and
arcuate, gradually thickened, straighter and deeply but sparsely punctured
in about basal third; antenne piceous, at basal third; prothorax large, a
fourth wider than long, the sides parallel and feebly arcuate, gradually
strongly rounding in about apical half to the feeble sinuses defining the
constriction, which is very much feebler than in any of the preceding species,
the tubulation feeble and shorter, less than half as wide as the base; surface
with fine sparse punctulation, much more distinct than in the preceding -
section and less sparse gradually toward the sides; basal lobe rather more
broadly rounded; elytra only a fifth longer than wide, barely as wide as the
prothorax and rather less than one-half longer, the oblique sides nearly
straight, the apex circularly rounded, with the usual broad reéntrant sutural
angle; humeri moderately swollen; grooves fine, only a little coarser apically,
the first obsolete, except apically, and formed by a series of fine punctures;
squamose line almost a third the length, broader than in any of the preceding
and attaining the basal margin; pygidium densely punctate, only a little
wider than long, slightly oblique and distinctly convex; prosternum with
two small approximate apical fovee, not at all prolonged; legs rather long,
the anterior femora with a minute angular inferior tooth. Length 5.9 mm.;
width 2.65 mm. Brazil (Santarem). One SPECIMEN... 2 oe gradatus n. sp.

T. L. Casey, Mem. Col. X, Oct. 1922.

402

MEMOIRS ON THE COLEOPTERA

Form less stout, more cuneiform and smaller in size, deep black and polished;

beak (9) very peculiar, nearly straight, a fourth longer than the head and
prothorax, exactly cylindric and very smooth, very abruptly thick and
strongly, densely punctate at base, this thicker part only slightly longer than
wide, the antenne at its apex and at about basal sixth, blackish, longer and
more slender than usual, the first two funicular joints much elongated, all
the others longer than wide, the club as long as the three preceding; pro-
thorax nearly a third wider than long, the parallel and feebly arcuate sides
rapidly rounding in about apical third, then sinuous to the apex, the tubulation
short, gradual and half as wide as the base; punctures medially minute and
remote, but rapidly becoming strong and close laterally and apically, also
strong and extremely dense throughout the inferior flanks and coarse, dense
and rugose on the upward prosternal slope, where each bears a fine whitish
squamule; basal margin with a line of punctures, the lobe and scutellum as
usual; elytra with the moderately oblique sides feebly arcuate, subsinuate
behind the slight humeral swellings, the apex obtusely rounded, a fourth
longer than wide, not quite as wide as the prothorax and scarcely one-half
longer; grooves fine but distinct throughout, a little coarser apically, the
intervals distinctly punctured laterally and transversely rugose at apex;
first ventral suture fine; legs longer, the femora similar but densely punctured,
the anterior tibiz more contorted; pygidium nearly similar but still narrower.
Length 4.9 mm.; width 2.1 mm. Brazil (Santarem). One specimen.
subulirostris n. sp.

9—Body elongate-ovoidal, polished, black; beak (co) rather longer than the

head and prothorax, strongly and evenly arcuate, gradually and distinctly
tapering throughout, unevenly and strongly punctured, nearly smooth dis-
tally; antenne piceous, normal and slightly behind the middle; prothorax
between a fourth and third wider than long, the sides evenly arcuate, not
parallel basally, the apical constriction small and deep, the tubulation abrupt,
less than half as wide as the base; surface very smooth, the inferior flanks
strongly and sparsely punctate; elytra oval, a third longer than wide, very
slightly wider than the prothorax and three-fourths longer; grooves smooth,
abrupt, very coarsely and deeply exarate at apex, the first basally obsolete
and becoming a series of very fine punctures; pygidium flat, semicircular,
densely punctate; femora long, slender, the anterior legs long, with broad
pallid and very hirsute tarsi, the femur not denticulate; abdomen in the
type evenly convex. Length 5.5 mm.; width 2.5 mm. Peru (Rio Toro).
OS c=) oxe(ohb oaX =) « Renae ene Nee HORM R erento Sinn Metin o idol oU ania CerBRNcia lets & discalis n. sp.

1o—Form rather stout, subcuneate-oval, convex, deep polished black throughout;

beak (co) rather thin, evenly arcuate, barely at all tapering, as long as the
head and prothorax, strongly, loosely punctate at the sides basally, nearly
smooth elsewhere; antennz normal, blackish, barely visibly behind the
middle; prothorax a fourth wider than long, the sides evenly and moderately
arcuate from the base, rapidly subtransverse at apex to the abrupt tubulation,
which is about two-fifths as wide as the base; surface with sparse infinitesimal
punctulation; elytra three-sevenths longer than wide, the oblique sides
feebly arcuate, the apex rather broadly, obtusely rounded, as wide as the
prothorax and one-half longer, the humeri distinctly tumid; grooves fine,
abrupt, coarsely exarate at apex, the first obsolete in about basal third;
pygidium small, flat, vertical, semicircular and very densely punctate; legs
rather long, the anterior femora denticulate beneath, the anterior tarsi
dilated, very hairy and pale piceous; prosternum with the upward slope
alutaceous and asperate; male abdomen flattened and sparsely punctate
medio-basally, the first suture fine and obsolescent. Length 5.5 mm.; width
2.4mm. Upper Amazon (Chanchomayo). One specimen.. .inornatus n. sp.

BRAZILIAN BARINZ 403

Form more oblong, much smaller in size, deep black and polished; beak (9?)
rather thick, evenly and feebly arcuate, very evenly cylindric, not tapering,
minutely, sparsely punctate throughout and rather short, barely as long as
the prothorax; antenne nearly normal and just visibly behind the middle;
prothorax a third wider than long, the sides very feebly converging and
just visibly arcuate, more rounding but only feebly oblique in apical third
to the very broad and gradually formed tubulation, which is nearly two-
thirds as wide as the base; surface remotely and very finely punctulate,
somewhat more evidently toward the sides, the sides sparsely rugulose;
elytra parabolic, a third longer than wide, at the rather tumid humeri just
visibly wider than the prothorax, three-fourths longer; striz very fine and
subobsolete, represented by series of fine punctures, moderately grooved at
apex; pygidium rather larger, semicircular, the deep punctures well sepa-
rated; under surface strongly punctured; legs rather short, the anterior
not longer in the type and with slender and non-fimbriate tarsi; femora not
spiculate beneath; abdomen evenly convex, the first suture fine but distinct
throughout. Length 3.8 mm.; width 1.65 mm. Brazil (Santarem). One
SDECIIN CNP ERR MR ener rie va chat ey rolen felis. tet dadons. seyaratciotenyS = simplex n. sp.

The species described above under the name subultirostris, al-
though similar to gradatus and the other species in its general
habitus, exhibits some very peculiar and aberrant characters relating
to the beak and antenne.

Piperis n. gen.

The body here is elongate-oval, convex, glabrous, polished and
very feebly sculptured, the beak long, rather thick, evenly and
strongly arcuate, separated from the head by a rather deep sharp
impression, the mandibles bifid, arcuate and decussate. Antennz
median, rather short and thick, the first funicular joint longer than
the next two, the second one-half longer than wide, 3-7 short,
compact and transverse, gradually scarcely wider, the club more
than twice as long as wide, gradually pointed and as long as the
preceding six joints; along the sides of the beak beyond the antennz
there is a very deep cavernous groove, extending almost to the tip.
Prosternum transversely and evenly convex, sparsely punctured
and without trace of suture; it is prolonged posteriorly in a long
pointed cone, extending behind the posterior mesocoxal tangent and
free at apex. Legs simple, rather short; tarsi moderate, with very
long fourth joint and strong connate claws, the femora mutic.
Prothorax gradually feebly tubulate, the basal lobe gradual, prom-
inent and broadly rounded, the scutellum closely fitted, flat, trans-
versely sublunate, angulate behind, the elytra with very fine striz,
stronger but not coarse at apex, and the pygidium well developed,
vertical, rounded, very little wider than long, evenly and strongly
convex, finely, sparsely punctate and glabrous. The first ventral

404 - MEMOIRS ON THE COLEOPTERA

suture is impressed and very distinct throughout. The type is
the following:

Piperis convexicauda n. sp.—Form very evenly elongate-oval, with but very
feebly swollen humeri; beak in the type fully two-thirds as long as the body;
antennz blackish, the scape almost as long as the remainder; prothorax a little
longer than wide, the sides moderately converging and straight, gradually round-
ing in about apical third to the feeble sinuses, the tubulation conical and fully
half as wide as the base, defined at the sides by a feeble constriction; punctures
very minute and sparse; toward the sides there are some fine longitudinal ruguli-
form lines, which are finely punctulate; elytra oval, two-fifths longer than wide,
at the humeri just visibly wider than the prothorax, only one-half longer, the
very fine and extremely feeble striz finely punctate, the intervals smooth; under
surface in great part strongly but loosely punctate. Length 5.65 mm.; width
2.4mm. Brazil (Chapada—campo). November. One specimen.

On the median line of the abdomen there is a very feeble impres-
sion on the first and another on the second segment; this may or
may not indicate the male as the sex of the unique type of this very
peculiar and isolated species.

Parapiperis n. gen.

In this genus the body is also elongate-ovoidal, sometimes faintly
rhombic and, in one species, distinctly cuneiform; it is shining, very
feebly sculptured and glabrous throughout. The beak and antenne
differ somewhat in the species, but in the type the former is moderate
in length, thick, cylindric, nearly smooth, distinctly and evenly
arcuate, feebly impressed along the sides basally and deeply beyond
the antennz, separated by a moderate sulciform impression and
with the mandibles deeply bifid, arcuate and strongly decussate.
The antenne in the type are notably short, very slightly post-
median, the first funicular joint longer than the next two, the second
slightly, the others strongly, transverse, compact and increasing in
width, the club large, oval, more than twice as long as wide, grad-
ually pointed, somewhat gradually formed and nearly as long as the
preceding seven joints. The prosternum separates the coxe by
almost twice their width and is rather tumid, rapidly sloping up-
ward beyond the coxe and, posteriorly, it is broadly, evenly sinuate
somewhat behind the mesocoxal tangent, closely adhering to the
mesosternal surface. The legs throughout are nearly as in the
preceding genus. Prothorax broadly constricted at apex, the
gradual tubulation conic, the basal lobe gradual, prominent and
broadly rounded, the scutellum more or less transverse, closely -
fitted, triangular, with broadly sinuate base, the elytra nearly as in
the preceding; the pygidium is smaller, narrower, vertical and
nearly flat, not longer than wide and deeply, loosely punctate; first

BRAZILIAN BARINZ 405

abdominal suture not evident, but marked by a strong impression.
The species known to me are as follows:

Body sibevenlyiovalnritey mate tger a hse ha 5 OSs tay ccchskahyneve aaigtun tatna dhe Oe 2

Body Narco were CUMeIIONIMNS Roperatcge Toc i a ios, Son endo ster see ea eet eee tls a) Sa na

2—Body evenly oval, a little stouter, shining and deep black; beak in the type
and antenne as described above, the former almost as long as the head and
prothorax, the latter shining, black, with densely pubescent club; prothorax
slightly elongate, the sides feebly converging and nearly straight, very
gradually arcuate and more converging beyond the middle to the feeble
sinuses, the apex subsinuate medially and half as wide as the base; surface
with infinitesimal sparse punctulation, becoming fine, longitudinal ruguliform
lines at the sides, which are finely punctulate as in the preceding genus;
elytra rapidly oval or parabolic, scarcely a third longer than wide, at the
evidently tumid humeri very slightly wider than the prothorax, only two-
fifths longer, the subapical umbones very moderate; strize extremely fine
and subobsolete, finely punctate, impressed at apex, the intervals each with
a single series of infinitesimal punctules; punctures beneath diversified,
coarse to fine on various parts, the abdomen nearly smooth, evenly convex;
posterior prosternal lobe almost smooth, the anterior slope distinctly punc-
tate. Length 5.7 mm.; width 2.3mm. Brazil (Santarem). One specimen.
scrobiculata n. sp.

Body nearly as in the preceding but narrower, with similar humeri but more
prominent subapical umbones; beak in the type similar in form, but not
quite so long or thick, still more minutely and remotely punctulate and not
quite as long as the head and prothorax, the antennz similar in general plan
but with the funicle more slender, the club as long as the preceding six
joints; prothorax more distinctly elongate, the evenly converging sides
feebly and evenly arcuate from base to the feeble apical sinuses; apex rather
more than half as wide as the base; sculpture similar, the lateral punctulate
rugulosity still finer; scutellum smaller, more ogival and less transverse;
elytra narrower, more than a third longer than wide, the oblique sides
straighter, the apex more rapidly obtuse, barely wider than the prothorax
and two-fifths longer; pygidium and the evenly convex and nearly smooth
abdomen almost similar; posterior prosternal lobe very smooth, the anterior
slope sparsely punctate. Length 4.8 mm.; width1.9mm. Brazil (Chapada
—campo). November. One example..................: atrolucens n. sp.

Body smaller, evenly elongate-oval, convex, shining, deep black; beak much
shorter but as long as the prothorax, relatively thicker, strongly arcuate and
compressed, sparsely punctulate, the upper line of the flanks acute; flattened
flanks longitudinally impressed, deeply sulcate beyond the antenne; an-
tenne black, very slightly post-median, short, the club longer than the entire
stem; prothorax as long as wide, the sides feebly converging and very
slightly arcuate, a little more rounding anteriorly, the apex fully four-
sevenths as wide as the base, the basal lobe much shorter and more broadly
rounded than in either of the preceding; punctures small but distinct, sparse,
forming longitudinal punctulate ruguliform lines at the sides; elytra two-
fifths longer than wide, oval, rather obtusely rounded at apex, not evidently
wider than the prothorax and about three-fifths longer, the humeral swellings
very feeble, the subapical umbones also feeble; stri# represented by series
of fine punctures, impressed at apex, the interstitial punctures very small
but evident in single lines; pygidium as long as wide, strongly, closely
punctate; abdomen smooth and very evenly convex in the type. Length
3.85 mm.; width 1.7mm. Brazil (Santarem). One specimen.

spissicornis n. sp.

406 MEMOIRS ON THE COLEOPTFRA

3—Form narrower, inflated anteriorly, deep black, polished and smooth, the
elytra feebly undulated; beak in the type not so thick as in any of the
preceding and longer, distinctly more than half as long as the body, cylindric,
evenly and moderately arcuate, not compressed, rather strongly sculptured,
longitudinally impressed at the sides basally and sulcate beyond the antenne,
which are blackish, median, longer than in the preceding forms and with
shorter oval club, this being as long as the four or five preceding joints;
prothorax large, scarcely as long as wide, the parallel sides evenly and feebly
arcuate, rapidly rounding and oblique in apical third or fourth to the more
definite tubulation, which is distinctly more than half as wide as the base;
basal lobe moderately prominent, broadly rounded; punctures infinitesimal
and remote, forming irregular distant ruguliform but not evidently punctulate
lines at the sides; scutellum ogival, wider than long, sinuate at base as usual;
elytra nearly one-half longer than wide, the moderately oblique sides feebly
arcuate, the apex rapidly rather obtuse, not quite as wide as the prothorax
and somewhat less than one-half longer, the humeri and umbones moderate;
strie extremely fine but evident and obsoletely impressed, minutely punctate,
more impressed but only a little coarser at apex; single loose lines of inter-
stitial punctures so infinitesimally minute as to be scarcely discoverable;
pygidium vertical, as long as wide, feebly convex and rather sparsely punc-
tured, much less strongly or closely than in any of the preceding; abdomen
very evenly convex in the type, the prosternum as usual.- Length 4.6 mm.;
width 1.7 mm. Brazil (Santarem). One specimen.......subcuneata n. sp.

It is not practicable to state definitely the sex of any one of the
above four unique types, as there are no decisive characters evident
beneath, and the pygidium is almost similar in shape throughout.
It is certain, however, that no two of them are very closely related
specifically.

Ampeloglypter Lec.

This genus, like Onychobaris, is of very wide distribution in the
western hemisphere and is composed of small to very small, rather
elongate, posteriorly very obtuse, glabrous and smooth shining
species. The beak is moderate, with bifid decussate mandibles,
cylindric and separated by an impression often obsolete in the male
but distinct in the female. The antenne are short, submedian,
with rather elongate first funicular joint and moderate, narrowly
oval club. The prosternum has a large shallow shining excavation,
which sometimes takes the form of a rounded fossa, and the generally
densely punctate broad posterior lobe approaches very close to the
mesocoxal tangent, the anterior coxe separated by their width to
one-half more. The legs are rather slender, the femora usually
mutic, but sometimes the anterior and middle femora are feebly
dentate beneath; the tarsi are narrow, with moderate connate
claws. The prothorax is generally tubulate at apex, but not sharply
constricted, the basal lobe small, very gradual and broadly rounded
or subtruncate, and the scutellum is small, closely fitted and equi-

BRAZILIAN BARIN 407

latero-triangular. The abdomen is peculiarly subquadrate and
obtuse. The species at hand are as follows:

Under surface strongly but loosely punctate, the abdomen very finely and sparsely;
prosternal lobe and adjoining short mesosternum abruptly very densely
Ts eit een aR nA ctrefere steeds 7.0 er YN ws gihnsie Sinise 2
Under surface as in the preceding, but with the prosternal lobe loosely and strongly
punctate; prothorax strongly transverse, only very obsoletely subtubulate..7
Under surface throughout, excepting the propleura and mes-epimera, extremely
densely cribrate with moderate but very deep punctures, the abdomen
‘inikoannllyoa amie eee ae arrose Oe tise seb Nt 8
Under surface as in the preceding, except that the very dense cribrate sculpture
on the abdomen is confined to the first segment, all posterior to the fine first

suture similarly but more loosely punctate........--++s+ssserrer ttre 9
2—Prothorax very moderately transverse, strongly tubulate at apex.......---. 2
Prothorax rather strongly transverse, only very briefly and feebly tubulate at

ALN RPMI ERT Tc chrlel ae wie Safe ie'= Solel fas eieaa Se aC ere eS a 6
3—Pronotal punctures extremely fine and sparse.......---++++eseeertertcee 4
Pronotal punctures not coarse but deep, sparse and conspicuous......------+- 5

4—Form oblong-suboval, blackish-piceous, with more rufous elytra, the legs
piceo-rufous; beak (@) rather thick, evenly cylindric, moderately arcuate
and finely, sparsely punctate, as long as the prothorax, or (@) a third longer
than the head and prothorax, thinner, very feebly arcuate but rapidly so at
base; prothorax a fourth (c") to a third (9) wider than long, the sides
parallel or very feebly convergent, just visibly arcuate, rapidly and briefly
rounded at apical third to the long subparallel tubulation, which is about
three-fifths as wide as the base; punctures extremely fine and sparse through-
out, with a rather more distinct single series along the base; elytra a fifth
longer than wide, a fourth or fifth wider than the prothorax and twice as
long, the sides only feebly oblique and slightly arcuate, the apex very rapidly
and broadly obtuse; grooves abrupt but very fine, the intervals nearly
smooth; pygidium vertical, small, transverse, similar in the sexes and densely
punctate; abdomen very obtuse at apex, shining, finely, sparsely punctate,
the first suture obsolete medially. Length 2.3-2.6 mm.; width 1.1-1.25
mm. Brazil (Chapada—forest). September to November. Three speci-
AE EF Sh coe ci ais oe et IONE POIRIER IT tubulatus n. sp.
Form oblong-oval, much broader, polished, piceous, with more rufous elytra and
legs; beak finely, sparsely punctate and separated from the head by a deep
impression in both sexes, moderately slender, evenly arcuate, and as long as
the prothorax (c”), or feebly arcuate, more so and dorsally slightly tumid
at base and as long as the head and prothorax (@), the prothorax strongly
convex—viewed in profile, nearly a third (<") or two-fifths (2 ) wider than
long, the sides subparallel, rounding beyond the middle to the more moderate
subconic tubulation, which is half as wide as the base; surface very smooth,
the remote punctulation barely traceable; elytra a fourth (<”) toa fifth (2)
longer than wide, broadly oval, relatively somewhat less obtuse at tip than
in the preceding, distinctly wider than the prothorax and twice as long, the
grooves very fine, less sharply defined and shallower, but coarsely exarate
at apex suturally; small transverse pygidium shorter in the female, more
finely and sparsely punctate than in the preceding; abdomen nearly similar.
Length 2.5-2.65 mm.; width 1.28-1.35 mm. Brazil (Santarem). Two
See IEE deus a, 4 eet ace an Oe an Ren ir Rane iis ral probatus n. sp.
Form narrower, similarly polished but black, the legs black, piceous distally, the
elytra rufo-piceous; beak (#7) nearly similar, barely as long as the prothorax,

408

MEMOIRS ON THE COLEOPTERA

separated by a deep reéntrant angle; prothorax much less convex—viewed
in profile, between a fourth and third wider than long, the sides parallel,
straight to subsinuate, rounding from a point slightly beyond the middle to
the strong tubulation, which is slightly more than half as wide as the base;
surface smooth, nearly as in the preceding; elytra suboblong and a fourth
longer than wide, the sides but feebly oblique and nearly straight, the apex
rapidly and very broadly obtuse, relatively wider and less rounded than in
the preceding, much wider than the prothorax but not quite twice as long;
grooves almost similar but a little deeper, very fine at apex, not coarsely
impressed as in the preceding, and barely at all more distinct; abdomen
nearly similar, the legs longer. Length 2.6 mm.; width 1.2 mm. Brazil
(Santarem); - Avsingle malevexamiple.cjieris 6 oie asic nisse tite pertinax n. sp.

5—Body much more slender than in any of the preceding, shining, piceous, the

elytra faintly more rufous; beak (co) moderately slender, evenly cylindric
and arcuate, as long as the prothorax, more closely, rugosely sculptured and
separated by a very feeble impression; prothorax very nearly as long as
wide, feebly and evenly convex in profile, the sides just visibly converging
and subsinuate, rapidly rounding well beyond the middle to the strong
tubulation, which is four-sevenths as wide as the base, the punctures rather
small but strong and distinct, sparse; elytra nearly a third longer than wide,
with slightly oblique, nearly straight sides and broadly rounded apex, fully
a fourth wider than the prothorax and twice as long, the very fine grooves
coarse basally and at apex; abdomen finely, sparsely punctate, the sterna
of the hind body more closely than in the preceding section, but not densely
cribrate as in some of the succeeding species. Length 2.6 mm.; width 1.15
mm. Brazil (Chapada—forest). October. One specimen—probably like
The OLhersntOunGh Ime HOWeLS a acne oat aemenr reer furtivus n. sp.

6—Body narrowly subrhombic-oval, black and shining throughout, the elytra

with very faint piceous tinge; beak (9) moderately thick, unusually short
and strongly arcuate, especially toward base, scarcely as long as the head
and prothorax, feebly tapering, rather strongly and closely punctate at the
sides, separated by a very shallow reéntrant; prothorax about one-half
wider than long, the sides distinctly converging and broadly, evenly arcuate
from base to the very brief tubulation, which is rather more than half as
wide as the base; punctures sparse and very small, but more distinct than
in the first three species, though less conspicuous than in furtivus; elytra a
third longer than wide, with rather prominent humeri and distinctly oblique
and feebly arcuate sides, the apex rapidly somewhat obtusely rounded,
about two-thirds as broad as the width at the humeri, distinctly wider than
the prothorax and evidently more than twice as long; abdomen and sterna
about as in the first three species. Length 2.25 mm.; width 1.05 mm.
Brazil (Chapada). November. One specimen, apparently female.
nigrinus n. sp.

Body stouter and with rather larger prothorax, polished black, the elytra feebly

picescent, the legs black; beak not distinctly separated from the head in
either sex, very short, stout, feebly arcuate, finely, sparsely punctulate and
much shorter than the prothorax (0), or a little less thick, straighter, bent
at base, minutely, sparsely punctate, barely at all tapering and as long as
the prothorax (9), and much thicker than in the female type of nigrinus;
prothorax a third wider than long to slightly more, the sides slightly con-
verging and nearly straight, broadly rounding and oblique beyond the middle
to the very short and feebly defined tubulation, which is slightly more than
half as wide as the base; surface moderately convex, the remote infinitesimal
punctulation scarcely discoverable; elytra a fourth—or slightly more—
longer than wide, with distinctly oblique, broadly and subevenly arcuate

BRAZILIAN BARINA 409

sides and strongly rounded, only moderately obtuse tip, evidently wider
than the prothorax and scarcely twice as long; grooves very fine, not coarser
basally and barely perceptibly so apically; abdomen as usual in this section,
minutely, sparsely punctulate and evenly convex in both sexes; sternal
punctures strong but well separated. Length 2.1-2.4 mm.; width 0.9-
1.15 mm. Brazil (Chapada—forest). August and October. Four speci-
THETIS Se eet eres isieel sf cies: Ste kere teuevsat =i fusiformis n. sp.
7—Body oblong-oval, polished, black throughout; beak in the type moderately
slender, evenly, rather strongly arcuate, feebly tapering, rather dull, com-
pressed and strigato-punctured at the sides and evidently longer than the”
head and prothorax, the separating impression scarcely traceable; prothorax
somewhat less than one-half wider than long, the sides strongly, subevenly
arcuate, becoming straighter and feebly diverging basally, oblique and
scarcely at all sinuate apically, the tubulation obsolete, the surface slightly
impressed, however, apically; apex not quite half as wide as the base; surface
convex, more strongly just behind the middle, very smooth and without
discernible punctulation; elytra obtusely oval, a fourth longer than wide,
the slightly oblique sides but just visibly arcuate, the apex broad and rounded,
at the very feebly tumid humeri slightly wider than the prothorax, evidently
more than twice as long; grooves extremely fine, not coarser basally, but
somewhat so and impressed apically toward the suture; intervals wide and
very smooth; sterna loosely punctate. Length 2.3 mm.; width 1.18 mm.
Brazil (Santarem). One specimen, possibly fermalevee in abe one elotus n. sp.
8—Outline oblong-oval, the surface shining and convex, smooth, deep black
throughout; beak (<7) rather strongly, evenly arcuate, equally subcylindric,
finely, loosely strigato-punctate, not separated by an obvious depression
and but little longer than the head and prothorax, or (2) almost similar
but longer, not quite so strongly, though evenly, arcuate, and very little
more slender, a third longer than the head and prothorax, the latter evenly
and moderately convex in profile, two-fifths wider than long, the sides just
visibly converging and nearly straight, strongly, evenly rounded beyond the
middle to the short, very gradual and feebly defined tubulation, which is not
quite half as wide as the base; surface with the remote infinitesimal punc-
tulation scarcely discernible, the basal lobe truncate medially; elytra with
the sides slightly oblique and feebly arcuate, the apex strongly but broadly
rounded, a fourth or fifth longer than wide, slightly wider than the prothorax
but scarcely twice as long, the humeri distinctly swollen; grooves fine and
shallow, faintly subcrenulate, broadly, feebly impressed suturally at apex,
not coarser basally; intervals smooth; pygidium small, transverse and
densely punctate. Length 2.0-2.15 mm.; width 1.0-1.15 mm. Brazil
(Chapada—forest). November. Two specimens..........-nugator n. sp.
Outline somewhat similar but much larger in size and stouter, rather more convex,
oblong-oval, shining, deep black throughout; beak (@) longer, somewhat
more than half as long as the body, evenly but rather feebly arcuate and
finely, somewhat closely sculptured; prothorax large, not quite one-half
wider than long, the sides feebly converging and just visibly arcuate, rapidly
evenly and strongly arcuate beyond the middle to the rather definite, though
gradually formed, short tubulation, which is nearly half as wide as the base;
punctures minute and sparse, becoming rather strong though not close at
the extreme sides; basal lobe truncate, the scutellum slightly free or at
least not very closely fitted; elytra broadly oval, scarcely a fifth longer than
wide, the feebly arcuate sides a little more oblique than in the preceding,
slightly wider than the prothorax and not quite twice as long, the apex
relatively somewhat less obtuse; striation similar, the fine strie remotely
and feebly crenulate. Length 2.5 mm.; width 1.35 mm. Brazil (Chapada).
November. Onelexample:... 0.02.00 se cee eee es definitus n. sp.

410 MEMOIRS ON THE COLEOPTERA

9—Form oblong-oval, convex, shining, deep black throughout; beak in the type
rather thick and closely sculptured, strongly arcuate distally but less so
basally, not separated by an impression and fully a third longer than the
head and prothorax, the latter rather strongly convex in profile, well devel-
oped, fully a third wider than long, the sides feebly converging and scarcely
arcuate, broadly rounding and oblique beyond the middle, the subobsolete
tubulation—though indicated as usual by the transverse dorsal impression—
much less than half as wide as the base; punctures remote and very minute,
becoming less remote and rather distinct toward the sides, the basal lobe
feebly truncate medially; elytra with evidently though slightly oblique and
but feebly arcuate sides and very broadly obtuse apex, a fifth longer than
wide, slightly wider than the prothorax and only about three-fourths longer,
the humeri distinctly prominent; grooves only moderately fine, somewhat
crenulate, very little stronger basally and at apex; intervals not very polished
and with single series of minute but evident remote punctures; pygidium
nearly as in the preceding; tibia mutic. Length 2.1 mm.; width 1.1 mm.
Brazil (Chapada). March. One specimen, of undetermined sex.
devinctus n. sp.
Form much narrower, the size smaller, the prothorax relatively shorter and the
elytra longer, black, shining; beak in the type much more slender and less
sculptured, not separated by a distinct impression, rather strongly bent,
straighter basally and nearly one-half longer than the head and prothorax,
the latter two-fifths wider than long, in outline and punctuation nearly
similar; elytra a third longer than wide, subsimilar in form but less broadly
obtuse at apex, with similar humeri, slightly wider than the prothorax
and distinctly more than twice as long; subapical umbones subobsolete as
usual in the genus; surface less declivous at tip than in the preceding and
almost similarly sculptured, except that the intervals are narrower and with
the punctuation more minute and less remote; pygidium still smaller,
transverse; femora still more slender, mutic. Length 1.7 mm.; width 0.75
mm. Brazil (Chapada—forest). November. One example, probably fe-
Male he) F gels ee Ree Oe Cee ee ae minutus n. sp.

In Ampeloglypter ater Lec., the general structure is very much as
in these smaller tropical species, but the beak is rather thicker and
distinctly separated by an impression and the femora are mutic;
there seems to be only a limited group of the Brazilian species
having the femora partially armed, however. In ater, almost the
entire. under surface, including the propleura, is very densely
sculptured, but with the punctures less individually defined on the
portions having this form of sculpture, than in the above species.

Solariopsis n. gen.

In some respects this genus is allied rather closely to Ampelo-
glypter, differing, however, very much in the regularly oval form of
the body, strong dorsal punctures and striation and more widely
separated anterior coxe. The very broad and feebly convex
posterior lobe of the prosternum extends almost to the line through
the middle of the intermediate coxe, and the surface before the
anterior coxe is flat, having, near the apex, a large and transversely

BRAZILIAN BARINE Ail

oval fossa. The entire under surface of the body is very densely
cribrate, excepting the shining prosternal fossa. The beak, an-
tenne and legs are very much as in Ampeloglypter, the femora
slender and mutic, the beak not separated by an impression and
having bifid decussate mandibles and submedian antenne. The
two species now in my collection are the following:

Body oval, the humeri feebly swollen, shining, deep black throughout; beak (<7)
evenly and moderately arcuate, rather slender, feebly compressed, finely,
somewhat closely punctate, and a little less than half as long as the body, or
(@) longer but not more slender, somewhat more than half as long as the
body and with rather sparser punctulation; prothorax about one-half wider
than long, the sides strongly arcuate, becoming straighter and subparallel
in about basal half, oblique anteriorly, the apex not tubulate and much less
than half as wide as the base; punctures deep, moderate and separated by
two or three times their diameters medially, becoming rather coarse, con-
spicuous and separated by their own diameters laterally; scutellum small,
ogival, as long as wide; elytra oval, only a fifth to sixth longer than wide, a
little wider than the prothorax and three-fourths longer; grooves deep,
punctate, a little coarser basally and apically; intervals with very minute,
remote punctulation; pygidium small, transverse, rounded and densely
punctate, somewhat oblique; first ventral suture obsolete. Length 2.2
mm.; width 1.15 mm. Brazil (Santarem). One specimen.. .nanella n. sp.

Body nearly as in the preceding in outline, color, lustre and sculpture, but larger
and somewhat stouter, oval, the humeri slightly protuberant; beak (<7)
longer and thicker than in the preceding, somewhat closely punctate, slightly
compressed and nearly one-half longer than the head and prothorax, evenly
and rather feebly arcuate; prothorax two-fifths wider than long, similar in
outline but with somewhat closer punctuation and more sharply, medially
sinuato-truncate basal lobe, the apex wholly non-tubulate but similarly
with a transverse dorsal impression, between which and the apex the surface
is smooth; elytra more obtusely oval, but little longer than wide, two-thirds
longer than the prothorax; grooves stronger and more equal, punctate, not
coarser basally and but little so apically; minute sparse interstitial punctu-
lation rather more evident. Length 2.0-2.25 mm.; width 1I.0-1.2 mm.
Brazil (Santarem). Two specimens.........-----++22ses000e: elusa n. sp.

The singularly densely cribrate sculpture of the under surface is
similar to that characterizing many species of Ampeloglypter, in
diverse degree according to the species; here it extends throughout
the under surface, even on the propleura.

Radamus Kirsch

I have assigned the two following species to this genus, without,
however, having seen the typical Peruvian species. The body is
oblong-oval, convex and glabrous, feebly sculptured and with the
coarse punctures of the under surface well separated throughout,
never having at any part the cribriform condensations of the
preceding or of a section here assigned to Ampeloglypter. The beak
and antenne are nearly as in the two preceding genera, but the

412 MEMOIRS ON THE COLEOPTERA

anterior coxee are more widely separated than in Ampeloglypter and
the posterior lobe of the prosternum extends behind the mesocoxal
tangent; the anterior part of the prosternum feebly slopes upward
from the coxe and is broadly, feebly impressed along the middle,
the apical part of the impression sometimes deep and foveiform.
The legs are slender, longitudinally sculptured, the femora mutic
and the tibiz unusually short. The prothorax is not sharply
tubulate, and the basal lobe is notably different from that of the two
preceding genera, being more as in Madarus, large, prominent and
evenly rounded, the scutellum small, closely fitted and equilatero-
triangular, the elytra moderately grooved and the pygidium small,
rounded and transverse. The two species in my collection are the
following:

Form stout, oblong-oval, convex, polished and black throughout; beak in the
type slightly thick, evenly and somewhat strongly arcuate, cylindric, feebly
tapering distally, finely, not very closely sculptured and evidently less than
half as long as the body; antenne medial, with rather stout, oblong-oval
club; prothorax not quite one-half wider than long, the sides converging
and barely arcuate, rounding and oblique beyond the middle to the short
but distinct conical tubulation, which is much less than half as wide as the
base; punctures very minute and remote, rather abruptly coarse and un-
evenly dense at the extreme sides; elytra very little longer than wide, with
only feebly oblique and slightly arcuate sides and rapidly broadly obtuse
apex, at the moderately tumid humeri only very slightly wider than the
prothorax, three-fourths longer; grooves sharply defined, rather strong,
deep and only finely, feebly punctate, a third to fourth as wide as the inter-
vals, which have single uneven series of very minute punctules; abdomen
evenly convex, loosely and moderately punctate, the first two segments
longer than all the rest, the first suture obsolete; sternal punctures rather
coarse; prosternal impression ending at apex in a deep oval fovea. Length
2.65 mm.; width 1.35 mm. Brazil (Chapada). May. One specimen,
TOU ChONEOWETS:..:</<'h on -toss HER ee eae ce ero ane fastidiosus n. sp.

Form more oval, narrower, polished, black and still less punctate; beak in the
type thinner, evenly cylindric, evenly and moderately arcuate, less so than
in the preceding, finely and sparsely punctulate and very nearly half as long
as the body, the groove at the sides beyond the antenne deeper and con-
spicuous; antenne blackish, submedial; prothorax one-half wider than long,
the sides more converging, feebly arcuate, gradually more rounded anteriorly,
oblique to the apex, which is not tubulate and less than half as wide as the
base; punctures extremely minute and remote, becoming somewhat coarse
and closer at the extreme sides, but much less coarse, close and conspicuous
than in the preceding; basal lobe and scutellum similar; elytra a fifth longer
than wide, the moderately oblique sides nearly straight, the apex rapidly
obtuse, barely wider than the prothorax and three-fourths longer, the humeri
somewhat swollen; sculpture nearly as in the preceding, except that the
intervals are not quite so wide and with the minute remote punctulation much
less evident; short transverse pygidium with a large impressed channel along
the apex, not observable in the preceding type; legs moderate, the tibie
shorter and more slender than in the preceding. Length 2.4 mm.; width
1.25mm. Brazil (Santarem). Onespecimen...........obsolescens n. sp.

BRAZILIAN BARIN 413

In obsolescens the prosternal impression of fastidiosus, and
apparently also of the other species alluded to by Champion, is
entirely wanting, the surface before the coxe being plane or only
very feebly and vaguely concave, sloping gently upward and finely,
sparsely punctate; the abdomen is evenly convex, polished and
minutely remotely punctulate, the coarse sternal punctures nearly
as in fastidiosus.

Stethobaroides Chmp.

This genus very closely resembles Stethobaris in external appear-
ance, being broadly oval, glabrous, polished and nearly smooth
above, with small subconical prothorax and very coarsely and
deeply grooved elytra; it differs greatly from any of the preceding
genera of this section, in having the scutellum widely free and of
peculiar form, being parallel and straight at the sides and much
longer than wide, truncate at apex, circularly rounded at base and
very feebly impressed, fitting loosely into a more or less deep
angulate emargination in the short feeble and gradual basal thoracic
lobe. The beak is moderate, not separated by an impression,
compressed at the sides and with slenderly and acutely bifid decus-
sate mandibles. Antenne slightly post-median, the first funicular
joint as long as the next two, the second very slightly elongate, the
others short, not increasing much in width, the club large, oval,
abrupt and about as long as the preceding six joints. The proster-
num separates the coxe by less than twice their own width and has

-a large non-parallel excavation before the coxz, which seems to
serve occasionally as a shelter for the distal parts of the antenne.
The legs are moderate, the femora mutic and the tibie short and
slender, the tarsi and claws rather small.

This genus is to all appearances singularly close to Stethobaris, dif-
ering, however, in one of the characters assumed to be of prime im-
portance in the subfamily, for the pygidium here is distinct though
small, vertical, transverse, convex, densely punctate and with its
lower margin feebly, transversely arcuate, while in Stethobaris the
pygidium is entirely concealed, and the thoracic lobe is not deeply
emarginate, though truncate or sinuato-truncate medially, the
scutellum much more abbreviated though free, and the tarsal claws
are similarly rather small and connate. For these reasons Stetho-
baroides must be regarded as a very remarkable genus. The only
South American species at hand is the following:

Stethobaroides scutellatus n. sp—Stout, convex, shining, black throughout
and glabrous; beak in the type rather thick, evenly and moderately arcuate,
barely longer than the head and prothorax and strongly, closely and in part
longitudinally sculptured, the lateral groove beyond the antenne distinct for
some distance; antennz piceous, the scape short but almost attaining the eye;
prothorax small, two-fifths wider than long, broadly arcuate at base from side to

414 MEMOIRS ON THE COLEOPTERA

side, with extremely short feeble lobe; sides converging, moderately and evenly
arcuate from. base to the extremely feeble short sinuses at the apex, which is
much less than half as wide as the base; punctures extremely minute and remote
medially, but gradually larger and less sparse laterally and, at the sides, distinct
though well separated; elytra large, broadly oval, the sides but feebly oblique,
arcuate, gradually broadly rounding behind, only a fifth or sixth longer than wide,
nearly a third wider than the prothorax and between two and three times as
long, the sutural angle slightly reéntrant, the humeri distinctly tumid; grooves
coarse and deep, punctured along the bottom; intervals wide suturally, only
about as wide as the grooves laterally, nearly smooth, the punctulation not
obvious; entire under surface strongly and closely punctate, the abdomen broadly
smooth medially, without sexual marks in the type. Length 3.0 mm.; width
1.6 mm. Brazil. A single specimen from the Amazon region, sent to me by
Desbrochers.des Loges.

It is not practicable to determine the sex of the type, but proba-
bilities indicate that it is a male. This species differs from nudt-
ventris in its more parallel elytra and more conical prothorax, much
shorter, thicker beak and deeper emargination of the thoracic lobe,
among other features.

Hasidus n. gen.

This is also a remarkably isolated genus in the present section,
the body being regularly elongate-oval, closely punctate throughout,
sparsely squamulose beneath and opaculate. The beak is moderate,
slightly arcuate, gradually thickened and compressed at base, not
separated by an obvious depression and with moderate bifid decus-
sate mandibles. Antennz moderately long and notably slender,
slightly ultra-median, the scape not attaining the eye, the first
funicular joint as long as the next two, the second and third also
slightly elongate, the others shorter, the three distal joints longer,
obconic and slightly longer than wide, the club small, oval, abrupt
and not as long as the three preceding joints, with its first segment
half the mass. The prosternum is flat, with a simple subapical
constriction, separating the coxe by slightly less than their width,
the posterior lobe trapezoidal, sinuato-truncate and extending to
the mesocoxal tangent. The legs are moderate, the femora mutic,
the third tarsal joint rather strongly dilated. The prothorax is
briefly and feebly tubulate at apex, the basal lobe extremely short,
gradual and obtuse, the scutellum free, truncate, as long as wide,
flat and obtriangular, the elytra deeply grooved and the pygidium
large, oblique, feebly convex, closely, shallowly punctured, slightly
squamulose and as long as wide. The type is as follows:

Hasidus obliquatus n. sp —Oval, convex, with feeble humeral swellings, sub-
opaque, black, the pronotum with some short erect stiff sete laterally, the elytra
with short sparse slender and fuscous subdecumbent squamules, paler and larger
at base toward the scutellum, the coarser punctures of the under surface each
with a small slender whitish squamule; beak in the type very feebly arcuate,
tapering, strongly sculptured and evidently longer than the head and prothorax,

BRAZILIAN BARIN 415

with shining blackish antennz, the outer half of the club paler; prothorax nearly
as long as wide, the sides subparallel basally, thence broadly, evenly rounded
to the tubulation, the sides of which are oblique; apex not quite half as wide as
the base; punctures coarse, very close-set though narrowly separated, with a
distinct narrow median smooth line; scutellum glabrous, very feebly impressed ;
elytra oval, a fifth longer than wide, slightly wider than the prothorax and scarcely
one-half longer; surface opaque, feebly impressed along the suture, scarcely at
all declivous apically, the grooves a little less than half as wide as the intervals,
which are strongly, closely and confusedly punctate, the grooves very gradually
less coarse from base to apex; abdomen convex, the first suture obsolete medially,
the last three segments largely glabrous along their bases; legs finely, sparsely
squamulose. Length 4.3 mm.; width 1.85 mm. Brazil (Santarem). One
specimen.

The sex of the type is probably male, as the pygidium is con-
spicuously prominent behind the elytra.

Brachybaris Faust

There are few genera more remarkably isolated than this, even
in the entire subfamily, the very small straight conical beak and
acute thoracic side margins, being its most noteworthy characters.
The body is small, convex, oblong and slightly oval, glabrous, rather
finely sculptured and convex, the broadly angular thoracic base
having medially a small prominent lobe, with its apex narrowly
truncate as a rule, the scutellum very small, closely fitted, flat and
triangular, the elytra grooved, sometimes shallowly. The pygidium
in cuneirostris is peculiar, being large, oblique, rather longer than
wide and strongly rounded at tip in the male, without propygidium,
but, in the female, it is small, vertical, transverse, convex, less
closely but more deeply punctured and separated from the elytra
by a very large oblique propygidium. There is but little sexual
difference in the beak, which is conical and straight, finely, loosely
sculptured and only two or three times as long as wide, the antenne
short but rather slender, the scape extremely short, subbasal, the
outer funicular joints a little longer and obconical, nearly as in the
preceding genus, the club small, broadly oval, about as long as the
two preceding joints, with its basal segment smooth, shining,
glabrous and slightly more than half the mass; the scrobes are very
short, basal and foveiform, prolonged forward slightly by a narrow
impression along the sides, the mandibles large, bifid and broadly
decussate. The eyes are-large, approximate beneath and rather
more coarsely faceted than usual. Prosternum short, broadly,
shallowly concave and separating the coxe by about their own
width, the posterior lobe broad, flat and truncate, attaining the
mesocoxal tangent and with the intercoxal suture obsolete. The
legs are very short, the femora mutic, the tarsi very slender, with

416 MEMOIRS ON THE COLEOPTERA

an extremely slender claw-joint and very small close-set but free
claws. The species at hand are three in number as follows:

Thoracic apex broadly truncate from the rounded side angles across the median
parts, there being as usual no tubulation. Body oblong, with arcuate sides,
moderately shining, black, with piceous legs; beak extremely short, only
twice as long as thick and much less than half as long as the prothorax,
rather shining, separated by a very faint impression and with its upper
outline evenly and feebly arcuate; prothorax transverse, three-fifths wider
than long, the sides moderately converging and feebly arcuate from base to
the rapidly rounded apical angles; head much less than half as wide as the
thoracic base; punctures fine and sparse, gradually larger toward the sides,
where they become rather coarse but separated; elytra short, not quite as
long as wide, very broadly obtuse at apex, the sides arcuate and but slightly
oblique, the humeri broadly swollen, slightly wider than the prothorax and
one-half longer; grooves deep, punctate, coarser gradually toward base;
intervals with single series of small but evident punctures, becoming larger
basally; pygidium (c*) rather wider than long, convex, subvertical and
coarsely, closely punctate, without propygidium; under surface strongly,
closely punctured, the abdomen in the type very evenly convex, finely and
sparsely punctulate, more closely at apex, the first suture obsolete medially.
Length 2.4 mm.; width 1.45 mm. Brazil (Entre Rios). One specimen.

humerosa n. sp.

Thoracic apex rounded as usual, without trace of tubulation................. 2

2—Body broadly oblong-oval, convex, feebly shining, black, with feeble subzeneous
lustre, the legs black; beak cuneiform, rather shining, nearly three times as
long as wide, straight, less than half as long as the prothorax, separated by
a rather evident reéntrant angle, the upper outline straight, becoming
arcuate basally, more especially in the male; prothorax two-thirds wider
than long, the sides broadly and rather strongly arcuate, becoming gradually
straighter and feebly divergent toward base; apex much less than half as
wide as the base; punctures very fine and sparse, gradually stronger but not
very coarse and distinctly separated toward the sides, the median line smooth
as usual; scutellum obtuse, ogival; elytra oval, with more arcuate and
oblique sides and more narrowly obtuse apex than in the preceding, a little
wider than the prothorax and scarcely three-fifths longer; grooves shallow
and not abrupt, rather fine, feebly crenulate or catenulate, the fine uniserial
interstitial punctures not coarser toward base; abdomen very shining,
evenly convex in both sexes. Length 2.7—-2.85 mm.; width 1.6-1.65 mm.
Beazil"(Santarem)=) Five specimenss: 2). wokid-ik le cuneirostris n. sp.

Body smaller, convex, more strongly and evenly oval, black throughout, with the
legs black; beak about twice as long as wide, three-sevenths as long as the
prothorax, feebly separated, more conical (co), subparallel (9); antennal
club not quite so thick, very small; prothorax three-fifths wider than long,
the sides converging rather strongly and very evenly, distinctly arcuate
from base to apex, the latter much less than half as wide as the base, the
basal lobe more narrowed apically than usual; punctures strong and sepa-
rated by about their own diameters, becoming but little larger but dense
and longitudinally subcoalescent toward the sides, the smooth median line
well defined; scutellum freer, small, subquadrate, wider than long and
feebly impressed; grooves rather coarse and deep, catenulate, gradually
much finer posteriad; intervals with single series of rather large and close-set,
subtransverse punctures; pygidium (<7 9 ) nearly as in cunetrostris; abdomen

BRAZILIAN BARIN 417

evenly convex, rather strongly, not densely punctate, with obsolete first
suture as usual. Length 2.65-2.7 mm.; width 1.6-1.65 mm. Brazil (Cha-
pada—campo). October. Two SMECIMICDS es Cee mint cieet sein elliptica n. sp.

The Colombian Baridius mutilus Boh., is I think distinct from
any of the above species; it is said to have the rostrum slightly
arcuate. This genus has been reported from the Central American
regions by Mr. Champion.

Tribe EURHININI

It seems desirable to separate three conspicuous genera as a
distinct tribal group; these genera are Eurhinus, Eurhinopsis and
Barycerus. They have a number of structural points in common,
and are much more closely allied to the very composite Madarini
than they are to the Barini. The posterior lobe of the prosternum,
for example, extends about as far as the mesocoxal tangent, but
the general plane of the surfaces is less uniform than in the Madarids;
the general habitus of the body does not harmonize at all well with
the Barini, except in Barycerus, where also the generally pervading
brilliant metallic coloration entirely disappears; it is this brilliant
metallic lustre, among other features, that causes the tribe to stand
alone between the Madarids and Barids. The antennal funicle is
often peculiarly modified, and its very thick compact form in many
species of Eurhinus signifies an affinity with Barycerus, where this
feature is extremely developed. The genera may be characterized
as follows:

Tarsal claws connate; beak thick but moderately Lomein Er His yearns 2
Tarsal claws free, divergent, arcuate and rather slender...........-++-+++-:. B
2—Antennal funicle gradually very thick and subequal in width to the club
distally, the club short, conoidal and gradually formed; body rhomboidal,
feebly sculptured asarule. [Type £. cyaneus Gyll.] _ Macrorhinus Latr.
Eurhinus
Antennal funicle much more slender, the club narrower and more elongate-oval;
body smaller, oblong, short and broad, attenuated behind, the sculpture
closer and more conspicuous as a rule; beak shorter. [Type EF. eruginosus
COiinrENesie oe oe tai wie Sc oes even nls) pos Sipeees regen eae e ares Saess Eurhinopsis
3—Body oblong-oval, moderately convex; beak shorter and very thick, as usual
not separated from the front by an obvious impression; antenne medial,
very thick, the club short, pointed, ovulate and not wider than the funicle;
sculpture fine and sparse above. [Type B. collaris Gyll.] Taxicerus De}.
Barycerus

The body is shining and wholly glabrous throughout, the femora
mutic and the pygidium vertical and well developed, differing only
slightly in the sexes.

Eurhinus Schon.

The body in this genus is moderately large, thick, convex, gla-
brous, polished, very feebly sculptured above and of a rhomboidal

T. L. Casey, Mem. Col. X, Oct. 1922.

418 MEMOIRS ON THE COLEOPTERA

outline, reminding us somewhat of Dziastethus and other similar
genera in the Centrinini. The very brilliant metallic coloration,
however, distinguishes the species from any others of the subfamily
and constitutes one of the more important of the generic characters.
The beak is thick, compressed, only very moderately arcuate, not
separated from the head by an obvious impression, sparsely punctate
and with stout decussate mandibles, the left sometimes shorter than
the right and more truncate. The antennz are inserted far beyond
the middle in both sexes and are short and more or less thick, at
least distally, the club very moderate and conically pointed; the
funicular joints are often, or perhaps generally, flattened, and
deeply impressed at the side. The prosternum is not modified,
except by feeble impression, and separates the coxe by their own
width (chevrolatz) to much less (cyaneus); the legs long, thick and
shining, with uninflated and mutic femora,. which are generally
feebly swollen at apex, the tibia smooth, with short thick inner
uncus at apex, the tarsi with transverse second and dilated third
joints and moderate, closely connate claws. The prothorax is
tubulate at apex, the basal lobe broadly rounded, the scutellum
transversely triangular and the elytra feebly striato-punctate. The
species are numerous throughout the neotropics, but no attempt
has been made to classify them in any thorough manner. They
are divisible quite readily however into several groups, based in the
main upon the diverse manifestation of sexual characters as follows:

Humeral swelling more or less conspicuously prominent; male with one or two
foveiform impressions on the fifth ventral segment..................+0+- 2
Humeral swelling very feeble; male without impression on the fifth ventral, its
apex with a short truncate median lobe, which is altogether wanting in the

2—Elytra with an irregular impression involving the bases of the second and
third striz; fifth ventral segment not foveate in the female excepting feebly
NTPC CIS: Mie Un. can dowd Ne sats Eh eketey ROMER CMe R TER RTS Le MeN Enea TENET ne Z
Elytra without the indicated impression, the bases of the second and third strize
each forming, however, a very clearly defined but short sulcus; abdomen as
ins Uheypreceding SECtION.,..~ 4/5 secre elem ie o-oo ae meee eee II
Elytra perfectly even basally, all the striae attaining the base without dilatation;
fifth ventral (co) with a single deep apical fovea, or ( 9) without impression;
bodysbbrilliantlycupreouss. nbc soteues Serra iene ot eet eee oer 12
Elytra as in the preceding; fifth ventral of both male and female having two
deep approximate apical fovee, a little larger and subconfluent (<”), or
smallervandéalways:separated (¢2.)5., sa seactaciaede cena rea ie keener eiene 13
3—Color uniform dark blue, sometimes suffused with violaceous; body of larger

Color uniformly bright green, the humeri sometimes feebly and suffusedly cu-
PPOOUS ES as Se ee ah a eR eR Re SOE a Cara a al te 7
Color bright green or bluish, the anterior parts of the pronotum and a humeral
and subapical area on each elytron—longitudinally united at the outer margin
= cupreous.. . Oh). Pee Ral, aA SRI cide Wes eaeee a nea Pace akan 10

4—Humeral prominence broadly and obtusely rounded at apex.............. 5

BRAZILIAN BARINA 419

Humeral prominence angulate at apex, the angle at most only slightly blunt. . .6
5—Form broadly subrhombic, convex, deep violaceous-blue throughout, the legs
concolorous; beak (@) thick, minutely, sparsely punctate, as long as the
prothorax, the antenne at four-sevenths, the funicle smooth, unimpressed,
very gradually increasing in width, the first joint twice as long as wide, the
seventh twice as wide as long and not quite as wide as the club, which is
gradually acutely conical and barely as long as the three preceding joints,
densely and pallidly pubescent throughout, the sutures straight, its four
segments equal in length; prothorax very convex in profile, broad, three-
fourths wider than long, the sides slightly converging and feebly arcuate,
gradually broadly rounding and strongly convergent beyond the middle, the
abrupt tubulation not three-sevenths as wide as the base; punctures infini-
tesimal and very remote throughout, the scutellum with similar punctules;
elytra as long as wide, the sides behind the large humeral prominences feebly
oblique and broadly arcuate, a fourth wider than the prothorax and three-
fourths longer, broadly and individually rounded at apex; strie extremely
fine and feeble, with very evident punctures, coarser and more impressed at
the sides and apex; intervals with remote infinitesimal punctures; pygidium
vertical, loosely punctate, nearly flat, almost twice as wide as long and
angulate at the sides; under surface extremely minutely and remotely
punctate; fifth ventral deflexed at apex. Length 8.6 mm.; width 6.0 mm.
Brazil (Rio Grande do Sul). One specimen................. cyaneus Gyll.
Form more elongate, rhombic-oval, polished, deep blue, with strong violaceous
lustre; beak (<7) longer, exceeding the head and prothorax, minutely, sparsely
punctate, the compressed sides concave medially from base to antenne,
which are at three-fifths, nearly as in the preceding in form and but little
thicker, the joints foveate on one side; prothorax very different, only one-
half wider than long, the sides subevenly and strongly arcuate, becoming
straighter and but feebly divergent basally, the tubulation two-fifths as
wide as the base; punctuation sparse and infinitesimal; basal lobe with
more evident lateral basal impressions; scutellum much less transverse;
elytra nearly similar but not quite so wide, and with the punctures of the
very feeble striz still smaller and less evident; pygidium vertical, larger,
more sparsely punctate and much less transverse; abdomen broadly and
feebly impressed at base, the fifth segment with a moderate and rather shallow
fovea, slightly wider than long and densely clothed with brown hairs, the
apex even, not produced medially. Length9.0mm.; width6.1 mm. Brazil.
A single male specimen, from an unrecorded locality....... violaceus n. sp.
6—Body not quite so large or broad as in cyaneus, similar throughout in color,
lustre and sculpture; beak (co) as long as the head and prothorax, more
minutely, remotely punctulate, feebly concave along the compressed sides,
the antenne almost similar; prothorax four-sevenths wider than long, the
sides strongly arcuate, becoming straighter and nearly parallel basally;
punctures similar; basal lobe with its apex more narrowly rounded and
feebly bilobed; scutellum much less transverse than in cyaneus, and more
rounded, its apex not so prominently acute; elytra nearly similar but not
quite so wide, the discal strie still finer and barely traceable, with more
minute punctulation; pygidium vertical, finely, sparsely punctate, not quite
twice as wide as long and angulate at the sides; abdomen (<0) with a large
and feebly concave basal impression, the fifth ventral with a fovea, which is
more transverse than in the preceding, nearly twice as wide as long and
similarly densely pubescent; anterior legs much longer than the others.
Length 8.5 mm.; width 6.0 mm. Brazil. A single male, received from

Desbrochers des Loges without further indication of locality.
humeralis n. sp.

420 MEMOIRS ON THE COLEOPTERA

Body smaller than in any of the preceding three, more greenish-blue in color, the
legs with still more greenish reflection; outline narrower; beak greenish, as
arcuate as in humeralis and more so than in violaceus, shorter than in either
and barely as long as the prothorax, finely, sparsely punctate, the sides
concave along the middle, the antenne less apical, at four-sevenths, nearly
similar but less thick distally than in humeralis; prothorax even more
strongly convex in profile, two-thirds wider than long, the strongly arcuate
sides nearly straight and feebly divergent posteriorly in almost basal half;
tubulation scarcely more than a third as wide as the base; punctulation
barely traceable; basal lobe evenly rounded; scutellum only a fourth wider
than long, smooth, its converging sides straighter and its very acute apex
more prolonged; elytra very slightly longer than wide, of the same general
outline, the striz very fine but deep and distinct, with more distinct and
somewhat impressed punctures; pygidium nearly as in the preceding;
abdomen (c) with a moderate but rather deeply concave medial impression
at base, the fovea of the fifth segment transversely oval, densely brunneo-
pubescent, the pubescence subdivided along the middle. Length 7.5 mm.;
width 5.25 mm. Brazil (Chapada). December. One specimen.

cobaltinus n. sp.

7—Posterior lobe of the prosternum deeply concave, the surface before the
cox sharply but shallowly canalate, the coxe separated by two-fifths their
width. Body rather broadly oval, convex and polished, uniformly very
bright green, the beak and legs suffused to some extent with coppery lustre;
beak (<”) feebly arcuate, as long as the head and prothorax, the sides only
feebly impressed medially in basal half, the punctures fine and sparse;
antenne at four-sevenths, the funicle rather slender basally but gradually
thick distally, and as wide as the club, the joints deeply foveate on one side;
prothorax campanulate, barely one-half wider than long, the sides converging
and evenly, moderately arcuate from base to the shorter and less abrupt
tubulation, which is two-fifths as wide as the base; punctures scarcely
observable and very remote; basal lobe with a small discal impression at
apex; scutellum a third wider than long, its sides converging and arcuate to
the prominent acute apex; elytra fully as wide as long, the part behind the
very prominent and obtusely rounded humeri more parabolic than in the
preceding section, one-half longer than the prothorax; striz discally ex-
tremely fine and almost obsolete, very minutely, feebly punctulate; pygidium
rounded, one-half wider than long and sparsely punctate, more finely than
in the preceding section; first ventral (co) rather strongly punctate, with a
deep smooth median impression, the fifth with a deep nude fovea, which is
somewhat wider than long. Length 6.8 mm.; width 4.3 mm. Mexico

(Rabasco)s .Oneispecimen. sie ase cle eae eieo tenet eaciee cavilobus n. sp.
Posterior lobe not concave, the anterior prosternal surface canalate, the coxe
always separated by much less than their width........................ 8

8—Body very stout, oblong-oval and convex. Polished, with uniform bright
green lustre throughout; parts of the beak and legs with the faintest possible
suffusion of cupreous; beak feebly arcuate, a little longer than the head and
prothorax, somewhat shorter in the female, finely, sparsely punctate, feebly
impressed along the sides; antenne barely beyond the middle (@ ), at four-
sevenths (o”), the funicle rather slender basally, gradually moderately thick
distally, the articular foveze very small and inconspicuous, the club sharply
conical; prothorax three-fifths wider than long, the sides strongly arcuate,
becoming parallel behind the middle, the tubulation very abrupt, a third as
wide as the base (<”), nearly three-sevenths (2); basal lobe broadly, evenly
arcuate; punctures minute, remote and barely visible; scutellum one-half
wider than long, the apex acute and prominent; elytra as long as wide, the

BRAZILIAN BARIN 421

sides behind the conspicuously prominent humeri but feebly oblique, the
apex broadly obtuse; strie very fine but distinctly impressed in the male,
minutely, feebly punctulate, except, as usual, the strongly punctate sutural
stria; intervals smooth; pygidium rather transverse, loosely punctate,
almost exactly similar in the sexes; male abdomen very feebly impressed
medio-basally, the fifth segment with a densely pubescent fovea, which is
slightly transverse in form, deflexed at tip in the female. Length 7.0-7.4
mm.; width 4.8-5.2 mm. Brazil. Three specimens........- festivus Fabr.
Body much less stout, notably more oval and elongate, similarly convex....... 9
9g—Form notably elongate, convex, shining, bright green throughout, the legs,
partially, and the abrupt conspicuous humeral prominences tinged with feeble
coppery lustre; beak (<") cylindric, less compressed and less thick than
usual, somewhat longer than the head and prothorax and with rather coarse
but loose punctuation; antenne at apical third and of the usual form but
short and not very stout; prothorax only three-sevenths wider than long,
feebly convex in profile but rapidly declivous in apical third, the sides con-
verging, at first nearly straight, thence rather strongly rounding to the abrupt
tubulation, which is three-sevenths as wide as the base, minutely, sub-
obsoletely punctulate, the basal lobe broadly rounded; scutellum nearly
twice as wide as long; elytra somewhat longer than wide, obtusely oval
behind, the prominences with nearly straight, somewhat oblique sides; strie
very fine and feeble, minutely punctate, the first coarsely so, except behind
the middle; pygidium transversely oval, rather convex, deeply punctate;
male abdomen distinctly impressed medio-basally, the apical fovea of the
fifth segment well developed, very deep and fusco-pubescent, rounded and
scarcely wider than long. Length 7.0 mm.; width 4.4 mm. Costa Rica.
A single specimen, sent by Mr. Champion under the name festivus Fabr.
prominens n. sp.
Form more rhomboid-oval, convex, with very much smaller, more obtuse and
feebler humeral prominences, polished green throughout, the humeral prom-
inences feebly; subapical umbones and legs in great part cupreous; beak (oc)
bright cupreous, relatively thicker and more compressed than in the pre- —
ceding, separated from the head by a rather distinct though very obtuse
impression, moderately arcuate, a little longer than the head and prothorax,
more finely but strongly, sparsely punctate, the antenne between apical
third and fourth and of the usual structure in this section; prothorax two-
fifths wider than long, evenly and distinctly convex in profile, the sides
strongly converging and very evenly, moderately arcuate from base to
tubulation, the latter abrupt and only two-fifths as wide as the base; punc-
tures very fine and remote, the basal lobe prominent, evenly rounded, the
triangular scutellum one-half wider than long; elytra barely longer than
wide, more triangular, the sides much more oblique; apex more narrowly,
obtusely rounded; striz not very narrow but very shallow, impressed, with
the punctures somewhat strong and very distinct; pygidium slightly trans-
verse, deeply but very loosely punctate; male abdomen deeply impressed
medio-basally, the adjoining metasternum more feebly, the apical fovea
nearly similar. Length 5.5 mm.; width 3.4 mm. Guatemala. One speci-
men, from an unrecorded source......-++++++eeerrrrtrtte binarius n. sp.
Form oval, less rhombic, almost similar in lustre and coloration throughout, but
much smaller; beak (¢@) brilliantly cupreous, a little shorter but otherwise
similar, the antenne near four-sevenths; prothorax quite different, widest
at base, but more dilated and rounded at the sides anteriorly, the latter
diverging and straight from about the middle to the base; tubulation shorter
and less abrupt, three-sevenths as wide as the base; sculpture, lobe and
scutellum almost similar, the elytra also almost similar, except that the

422

MEMOIRS ON THE COLEOPTERA

strial punctures are more close-set and the subapical umbones not tinged
with cupreous; pygidium nearly similar, with allowance for sex, being a
little smaller in the female; abdomen in the type not impressed at base,
the fifth segment with a very small rounded discal fovea near the apex, the
abdominal surface feebly cupreous medially. Length 4.7 mm.; width 2.7
mm. Panama. A single example, received from an unrecorded source
aboutithirty years/ago.. 2.6 ee ssie Ges Jb) oes tees GeebAebatee minuens n. sp.

10—Body only moderately stout, rhombiform, polished, bright green or greenish-

blue, the pronotum brilliantly cupreous-red in apical half, extending nearly
to the base medially; large humeral and rather smaller apical areas on the
elytra—connected longitudinally at the sides—also deep cupreous-red; under
surface bright green, the beak, legs and fifth ventral bright cupreous; coppery
areas of the upper surface sharply defined; beak (<”) feebly arcuate, thick,
compressed, strongly but sparsely punctate and distinctly longer than the
head and prothorax, or (9) similar but a little shorter; antennz at two-
thirds (co), or four-sevenths (?), of the usual structure; prothorax feebly
convex in profile, but more rapidly declivo-convex apically, campanulate,
not quite one-half wider than long, the punctures very remote and fine but
impressed, especially in the male, and distinct; elytra as long as wide, with
very large and conspicuous humeral prominences, the sides behind them
strongly oblique, the apex moderately obtuse, individually rounded as usual;
fine strie very feebly impressed, finely but distinctly punctate, the first
coarsely in basal half; pygidium as usual; abdomen (<’) impressed medio-
basally, the fovea of the fifth segment moderate, deep, fusco-pubescent and
scarcely wider than long, or (2) very feebly impressed medially at the apex
of the fifth segment. Length 6.0-6.25 mm.; width 3.6-4.0 mm. Mexico
(WeratGruz). eiworspecimenstae nies ie iia ieee ier magnificus Gyll.

Body more elongate, otherwise very similar throughout, the coloration similar in

general character, except that the cupreous areas above are nubilously
limited, that of the pronotum medial, not extending to the sides except
narrowly and in very faint degree, those of the elytra similar in form and
extent but less sharply defined; prothorax a little narrower and more elon-
gate, the apical tubulation broader; head larger; elytra similar in form but
somewhat longer, and with the fine strie not impressed but sharply defined,
the punctures similar; pygidium similar in form and sculpture but notably
larger; fifth ventral segment with the nude shallow impression medially at
apex larger, feebler and less definite and also less finely punctate. General
color of the body less intense and more greenish. Length 6.7 mm.; width
4.0mm. Nicaragua. One female example............. gemmulus n. sp.

11—Outline oblong-oval, convex, polished, deep and pure blue throughout above,

violaceous by oblique light, the under surface and beak greenish, the legs
blue; beak (2) scarcely as long as the prothorax, thick, straight, slightly
bent at apex, not separated by an impression, rather strongly, sparsely
punctate; antennz at apical third, the funicle rather rapidly thicker distally,
the club short, oval, ogivally pointed, with deep sutures, its basal segment
polished and glabrous except at apex; prothorax two-fifths wider than long,
campanulate, the strongly arcuate sides gradually subparallel basally; tubu-
lation abrupt, three-sevenths as wide as the base, the basal lobe obtusely
subtruncate at apex; punctures sparse and minute though distinct, still
stronger on the lobe; scutellum with some distinct punctures basally,
equilatero-triangular to shorter; elytra about as long as wide, with con-
spicuous humeral prominences, the sides behind them oblique, feebly arcuate,
gradually and broadly rounding behind; strie very fine, not impressed, the
punctures lineiform but very distinct, those of the first not coarser; pygidium

BRAZILIAN BARINE 423

as usual, the punctures small, deep and rather sparse; fifth ventral simple,
deflexed apically; prosternum strongly punctate, with a broadly concave
channel, separating the coxe by three-fourths their width, the posterior lobe
discontinuous with the mesosternum, narrowly canaliculate, the surface
tumid at each side of the impression. Length 5.7-6.7 mm.; width 3.7—4.2
mm. Brazil (Chapada). November. Two specimens... ..azureatus n. sp.
12—Body broad, rhombic-oval, polished, deep and pure cupreous in color, the
legs violaceous-blue; .beak (2) thick, cylindric, cupreous, black in nearly
distal half, as long as the head and prothorax, the head having a large inter-
ocular indentation; punctures minute and sparse; antenne at three-fifths,
the funicle thick, narrowed basally, the indentation of the joints deep,
forming almost a continuous channel; prothorax strongly, evenly convex
in profile, one-half wider than long, the strongly arcuate sides becoming
almost parallel and straight in nearly basal half; tubulation abrupt but
with oblique sides, about three-sevenths as wide as the base; punctures
scarcely visible; lobe very broadly rounded; triangular scutellum nearly
smooth, slightly transverse, with straight sides; elytra scarcely as long as
wide, the humeral prominences only moderate and obtusely rounded; outline
behind them very broadly parabolic; striz very fine but rather deep and
distinct, finely, indistinctly lineato-punctate, the coarser first stria deeply
grooved and impunctate, feebly crenulate and coarser at base; pygidium of
the usual form, finely, loosely punctate; sterna medially and the abdomen
greenish, the fifth segment reflexed at tip but not at all foveate. Length
7-7mm.; width 5.0mm. Brazil. Locality unrecorded. One specimen.
cupratus Germ.
Body much smaller in size, less broad, subrhombic and of intense burnished
cupreous color throughout, the legs, under surface and beak also cupreous,
the last black at tip; beak (<7) distinctly shorter than the prothorax, thick,
very feebly arcuate, not separated by an impression, not coarsely but deeply,
rather closely punctate; interocular impression shallow but evident, or (@)
longer, as long as the head and prothorax, similar in form and sculpture;
antennz submedial in both sexes, the funicle thick and more parallel than
usual, the joints moderately foveate, more slender in the female; club
gradually acutely and rectilinearly conical from near the base; prothorax
strongly, evenly convex in profile, the sides strongly arcuate, gradually less
so basally but not parallel, the tubulation moderate, subequal in the sexes;
punctures very minute and sparse throughout, but coarse along the basal
margin, especially along the broadly rounded lobe, also more distinct in the
constriction at the base of the tubulation; scutellum triangular, punctulate,
only moderately transverse; elytra about as long as wide, obtusely parabolic,
the humeral prominences much less conspicuous than usual; strize fine but
acute, distinctly punctate, the sutural not coarser but more coarsely punctate
basally, not at all as in the preceding; pygidium moderate, rather finely but
deeply punctate; male abdomen deeply impressed medio-basally, the fifth
segment with a deep subquadrate fusco-pubescent fovea; entire under surface
somewhat strongly but sparsely punctate; anterior coxe separated by rather
more than their width, the posterior lobe more narrowly, deeply canalate.
Length 5.5-6.0 mm.; width 3.75-4.0 mm. Brazil (Santarem). Four speci-
HADEN S yaw meMe Rem ere cuca c/o eet mic ee CC tae Ay, Ba uk Ea ea a be letus n. sp.
Body still smaller and more narrowly rhombic-oval, with polished, less intense
cupreous lustre, suffused with greenish, the legs and beak similar in color;
beak (<) not darker at tip, short, thick, evenly and rather distinctly arcuate,
not compressed but with the sides longitudinally impressed near the base,
four-fifths as long as the prothorax, separated by a feeble impression and
finely, sparsely punctate; antennz submedial, the funicle gradually thick-

424 MEMOIRS ON THE COLEOPTERA

ened, deeply and coarsely excavated posteriorly, the club small and not
differentiated; prothorax evenly convex in profile, fully one-half wider
than long, the sides strongly arcuate, straighter but not parallel basally, the
basal lobe extremely short and feeble, the tubulation oblique, two-fifths as
wide as the base; punctures coarse, deep and very conspicuous though well
separated broadly toward the sides, minute and sparse medially, not much
more evident on the evenly rounded basal lobe; scutellum transversely
ogival; elytra broadly, obtusely parabolic, with large but not very prominent
humeral swellings; striz fine but sharp, very finely, remotely punctate, the
sutural similar, though a little more strongly punctured basally; pygidium
unusually small, sparsely, deeply punctate; legs shorter than usual, the
femora very coarsely, rather densely punctate; prosternal lobe convex, not
at all impressed; male abdomen deeply impressed at base, the fifth segment
with a moderate deep rounded pubescent fovea. Length 4.5 mm.; width
2'snmimebrazila((Ruordes janeiro) eran eee eae ee puncticollis n. sp.
Body rather more oblong and slightly larger, identical throughout in the peculiar
sculpture, but of a pure bright green throughout, the legs and entire beak
concolorous; beak (0) similarly short, rather strongly arcuate, the impres-
sions on the compressed sides basally and beyond the antennz a little broader,
the punctures moderate and sparse, shorter than in puncticollis and only
about three-fourths as long as the prothorax, which is almost similar through-
out, except that the sides are more rapidly oblique and straighter beyond
the middle, the coarse separated antero-sublateral punctures similar; basal
lobe notably more narrowly rounded at tip; elytra similar, the strial punc-
tures somewhat more distinct; pygidium somewhat smaller and distinctly
shorter; abdomen and apical fovea similar; prosternal sulcus broad and
continuing to the posterior lobe, the coxe separated by not quite their own
width; in puncticollis, the narrower deep canal extends only two-thirds the
way from apex to lobe, separated from the latter by a perfectly flat quadrate
area; legs nearly similar. Length 5.0 mm.; width 3.0 mm. Brazil? A
single specimen, without indication of locality, but almost undoubtedly from
the same general geographic region as the preceding... .. gramineus n. sp.
13—-Form moderately stout, rhomboid-oval, convex, polished, cupreous, a little
more zneous laterally; beak coppery and greenish, the legs dark blue, the
abdomen green, subcupreous at base; summit of the humeral prominences
faintly greenish; beak (9) very thick, slightly compressed, straight, bent
slightly at apex and only three-fourths as long as the prothorax, finely,
sparsely punctate, more strongly and densely at the sides apically; antenne
black, submedial, thick, the joints broadly and deeply excavated; prothorax
one-half wider than long, the strongly arcuate sides becoming slightly diver-
gent and nearly straight posteriorly in about basal half; tubulation long and
abrupt; surface smooth, not evidently punctulate, the lobe broadly rounded;
elytra scarcely longer than wide, very broadly and obtusely parabolic, the
humeral prominences moderate; striz fine but sharply marked, scarcely at
all punctured; pygidium finely, sparsely punctate; anterior coxe separated
by their own width, the prosternal lobe deeply and narrowly canalate; legs
rather long, finely, sparsely punctulate; fifth ventral with two small, widely
separated apical fovee. Length 6.4 mm.; width 4.0mm. Brazil. A single
female specimen, from Desbrochers des Loges............. cavicornis n. sp.
Form somewhat less elongate, rhomboidal, convex, distinctly alutaceous; pale
green, more or less suffused with pale cupreous, the legs and beak green or
partially subcupreous, especially in the female; beak (o&@) about four-
fifths as long as the prothorax, rather thick, straight, feebly bent but not
darker at apex, distinctly, rather sparsely punctate; antennz blackish, only
a little beyond the middle in either sex, more slender than in the preceding,

BRAZILIAN BARINE 425

the joints distinctly foveate; prothorax two-fifths wider than long, the
strongly arcuate sides gradually straighter and subparallel basally, the
tubulation gradual, short and very oblique at the sides, but with the dorsal
constriction marked by coarse punctuation throughout; surface minutely,
sparsely punctulate, the basal lobe with numerous rather coarse punctures,
prominent and evenly rounded; elytra a little longer than wide, very obtusely
oval, the humeral prominences notably conspicuous; striz very fine but
distinct, relatively strongly punctate, all somewhat coarsely so toward base;
minute, sparse interstitial punctulation evident; pygidium moderately and
loosely punctate;- abdomen (c’) moderately impressed at base, the fifth
segment with two deep confluent fovee, the edge behind them prominently
lobed at the middle, or (2) unimpressed and with two smaller foveze on the
fifth ventral, which are narrowly separated—by half their width, the apex
even and not lobed; prosternum broadly concave, separating the coxe by
their own width, the strongly convex lobe divided by a deep median channel.
Length 6.2-7.0 mm.; width 4.2-4.65 mm. Brazil (Chapada—campo). May
aAndwOctoletameNine: SMECIMeNS a. teins ss e-voting ae oe suffusus n. sp.
14—Body elongate-oval, bright polished and uniform green throughout the body,
legs and beak, the latter thick, not compressed, finely, sparsely punctate,
nearly straight, slightly bent at the antenne and distinctly shorter than the
prothorax; antenne but little beyond the middle; prothorax nearly one-half
wider than long, the converging sides almost straight, strongly rounding
beyond the middle, the tubulation abrupt; surface smooth, the basal lobe
prominent and evenly rounded; elytra much more elongate than usual, a
third longer than wide and two-thirds longer than the prothorax; striz very
fine but sharply defined, finely, remotely punctate; pygidium shorter and
more transverse than usual, rather convex, fully twice as wide as long and
finely, sparsely punctate; fifth ventral devoid of foveation in either sex, the
apex (0) shallowly sinuate medially, with a short and gradually formed lobe
projecting from the middle of the sinus. Length 6.4-6.9 mm.; width 3.5-4.0
Miweavenezuelas Ohree; specimens... 4+40- 4.000 chevrolati Chmp.

Included above, with such other neotropic species as are at hand,
are a number of species from the Central American region, which
have been in my collection for many years; these all belong to the
festivus section of the genus, characterized by the evident irregular
impression at the base of each elytron, but in every case they prove
to be unquestionably distinct species, if I have correctly identified
festivus; my festivus may, however, be viridis Boh., although this
does not seem probable, in view of the apparently very moderate
humeral prominences ascribed to the latter; in the species which I
have identified as festivus, the humeral prominences are conspicuous.
Yucatecus Chmp., is another of these allies of festivus, but it differs
however in its dark and cupreous-brown coloration, among other
features. The prosternal characters of cavilobus, puncticollis and
some others, form excellent specific criteria, and the thoracic
sculpture of puncticollis and gramineus is peculiar. Perhaps flatu-
arius Germ., may come near the two latter, but the beak is said to
be dark at apex in that species.

Eurhinopsis Chmp.
The species of this genus are much smaller than in Eurhinus and

426 MEMOIRS ON THE COLEOPTERA

are distributed over the same faunal regions, but they are fewer in
number. The body is oblong-oval, glabrous and strongly metallic
in coloration, the beak short, thick, nearly straight, feebly separated
from the head and with widely decussate and bifid mandibles.
The antennz are inserted more or less beyond the middle, with deep
and very oblique scrobes, the funicle slender, only slightly thicker
distally, the first joint longer than the next two, the others more or
less compact and transverse, the evenly elongate-oval club about
as long as the preceding five joints. The prosternum is more or
less concave, separating the coxee by rather more than their width
and with a large and nearly flat truncate posterior lobe, extending
about to the mesocoxal tangent. The legs are very nearly as in
Eurhinus, except that the tarsi are slightly narrower and the
connate claws smaller. The basal thoracic lobe, scutellum, pygid-
ium and male sexual characters are also nearly as in Eurhinus, and
the genus belongs to the same group, without the slightest doubt.
The species at hand are as follows:

Prothorax with nearly parallel sides, abruptly rounded or angulate antero-

Terterall Dyes o; ahs ete ie cieyaat ot cats Sin aed iow nbs tee Ae eee ee epee isis 2
Prothorax with converging sides, broadly rounded antero-laterally. Central
IA TMOTACAL ok beatae is SS lesa APA See oe. ENGL erotik acrere 5
2—Pronotum with notably fine punctures, more evidently but not conspicuously
punctate anteriad..., 3/04. Bisiss Posty Me wees cae eer eer aa ee eee 3
Pronotum strongly and closely punctate, less so toward base..............--. 4

3—Color bright zneo-cupreous, polished, the beak greenish, the legs somewhat
infuscate; beak (<”) only three-fifths as long as the prothorax, finely, sparsely

’ punctate, the upper profile evenly and feebly arcuate, the antenne black, or
(@) very little longer and otherwise similar, two-thirds as long as the pro-
thorax, the latter three-fourths wider than long, the sides parallel and nearly
straight to between apical fourth and third, where they are abruptly and
rather sharply angulate and carinate, thence very oblique and nearly straight
to the tubulation, which is short, gradual and feeble, much less than half as
wide as the base; punctures everywhere sparse, larger anteriorly; basal lobe
evenly and broadly rounded, the scutellum wider than long, ogival; elytra
at the feebly tumid humeri barely visibly wider than the prothorax, three-
fifths longer, a fourth longer than wide, the sides strongly oblique and nearly
straight, the apex obtusely rounded; striz fine but deep and sharp, finely,
remotely punctate; intervals infinitesimally and in part unilinearly, sparsely
punctulate; pygidium as in Eurhinus, deeply but loosely punctate; male
abdomen distinctly impressed at the middle of the base, the fifth segment
with two minute approximate pubescent fovez in transverse line at the
middle of the length. Length 3.4-3.6 mm.; width 2.15 mm. Brazil (San-
CAFE) 1 AWOISDE CHIME See ieee eee Ney pche tia tate era sneetse sy -yatees angulata n. sp.
Color deep black, with only very feeble violaceous lustre; beak (9) straight,
three-fifths as long as the prothorax, the latter three-fourths wider than
long, the sides nearly parallel and feebly sinuate from base for three-fifths,
there rapidly rounded but not angulate, obliquely prominent when viewed
laterally, strongly oblique and feebly subarcuate to the tubulation, which is
very short but abrupt, less than three-sevenths as wide as the base; punctures
everywhere very fine and sparse, but little less so anteriad; lobe and scu-

BRAZILIAN BARIN 427

tellum nearly similar; elytra as in the preceding in outline and proportions,
the striz still finer and feebler, finely but evidently, distantly punctate;
pygidium nearly similar, one-half wider than long, circularly rounded and
rather strongly but loosely punctate; punctures beneath only moderately
coarse, well separated, the abdomen subimpunctate medially. Length 3.85
mm.; width 2.5mm. Brazil (Santarem). A single female specimen.
incerta n. sp.
4—Body moderately broad, very convex, polished, green, with cupreo-zneous
suffusion by particularly reflected light, especially beneath and on the legs
and beak, the last (co) nearly straight, three-fifths as long as the prothorax,
distinctly and not very closely punctate, the antenne nearly at two-thirds;
prothorax in profile very convex, declivous anteriad, two-thirds wider than
long, the parallel sides feebly arcuate, rapidly rounding but not angulate
near two-thirds and thence very oblique and nearly straight to the short,
feeble tubulation, which is scarcely three-sevenths as wide as the base;
punctures coarse but well separated apically, gradually less coarse thence
posteriorly as usual, without trace of a smooth median line; along the base
the punctures are rather coarse, close and confused, the lobe truncate, the
scutellum smaller, more closely punctulate and but little wider than long;
elytra in outline and proportions nearly as in the two preceding, the stric
fine but stronger, coarser at base and apex and with strong, though not in
any way coarse punctures, the intervals sparsely and infinitesimally punctate;
pygidium formed as usual but rather convex; male abdomen nearly as in
angulata, the two small fovee of the fifth ventral still more approximate.
Length 3.7 mm.; width 2.2 mm. Brazil (Chapada). November. One
SOSA TY 5 5 SC aeRO CIS Mee OU ORC RCRD See ae eee ene ca obliqua n. sp.
Body much broader, polished, bright green, more or less suffused with cupreous
beneath and often also above, similarly very convex anteriorly and declivous
toward the thoracic apex; beak (co) very short and thick, rather finely,
moderately closely punctate, almost straight and three-fifths as long as the
prothorax, or (¢) a little less thick, more bent at apex and two-thirds as
long as the prothorax, the latter fully four-fifths wider than long, the sides
parallel and straight for three-fifths, then rapidly rounding, becoming very
oblique to the very gradual, short and feeble tubulation, whieh is about two-
fifths as wide as the base; punctuation nearly as in the preceding, the basal
lobe evenly rounded, not truncate, the scutellum similar but larger, closely
punctulate; elytra similar in general form and proportion, the striz and
punctuation nearly similar but somewhat finer; metasternum and medio-
basal part of the male abdomen distinctly impressed and smooth, the two
small discal fovez of the fifth segment similar but very approximate. Length
3.85-3.9 mm.; width 2.6-2.65 mm. Brazil (Santarem). Four specimens.
recticollis n. sp.
5—Form oblong-oval, strongly convex, polished and subzneous-green, somewhat
cupreous beneath, the legs and beak green; beak (9) very short, thick,
slightly arcuate, finely, loosely punctate and only three-fifths as long as the
prothorax, the latter strongly, subevenly convex in profile, only one-half
wider than long, the sides distinctly converging, evenly and very feebly
arcuate, gradually rounding anteriorly to the short and gradual, feeble but
unusually wide tubulation, which is almost half as wide as the base; punc-
tures coarse, deep and separated by barely their diameters laterally and
apically, becoming fine and sparse medio-basally and with a distinct narrow
impunctate line; basal lobe evenly rounded, the scutellum ogival, punctulate,
only a little wider than long; elytra but little longer than wide, distinctly
wider than the prothorax and barely more than one-half longer, evenly and
obtusely parabolic in form, the humeral prominences more developed than

428 MEMOIRS ON THE COLEOPTERA

in any of the preceding, the striae much coarser, especially toward the sides
and somewhat coarsely, closely and not linearly punctate throughout, the
intervals with the minute sparse punctures very distinct and unilineate;
pygidium nearly similar and loosely punctate; under surface very coarsely
punctate, the abdomen smooth medially, the fifth segment in the type with
the apical margin slightly thickened and bordered medially by a narrow
eroded line; prosternal lobe broadly and deeply impressed medially. Length
3.35 mm.; width 2.25 mm. Mexico (Frontera in Tabasco),—Townsend.
Onespecimen; apparently temale:weee ae eae eee convexa Nn. sp.

Of the two species described by Mr. Champion, the Mexican
@ruginosa is subopaque above, and, in the Guatemalan viridicolor,
the surface above is said to be somewhat flattened and the pro-
thorax moderately convex and gradually narrowed from base to the
abrupt tubulation. I am uncertain whether or not the black
coloration in the single type of tmcerta may be due to accidental
causes, but the punctuation is much finer. As in many other
large genera of the Barine, the species of Eurhinus and Eurhinopsts,
although widely distributed through the neotropics, seem to be
unknown along the immediate Pacific coastal regions.

Barycerus Schon.

In this remarkable genus, which without any doubt at all is
allied to the two preceding, the body is oblong-oval, convex, shining
and glabrous, the beak very short and thick, not clearly separated
by an impression, though with the usual large frontal fovea, very
feebly arcuate, strongly sculptured and with long bifid and broadly
decussate mandibles. Antennz very short, medial, the funicle and
club very broad and flattened, the distal funicular joints very
transverse and somewhat overlapping, or with subimbricate arrange-
ment, the short and broadly oval, very flat club having arcuate
sutures, the first segment half the mass, shining and glabrous.
The prosternum is very feebly concave, separating the coxe by but
little more than half their width, and with the posterior lobe flat,
arcuato-truncate and extending to the mesocoxal tangent. The
legs are normal but short, the tarsi narrow and the claws free,
arcuate and divergent. The prothorax has the same prominently
rounded basal lobe as the preceding genera, but the scutellum is
very different, being transversely quadrate, parallel and partially
free. The elytra are grooved, the pygidium well developed, trans-
verse, vertical, convex and extremely densely punctate and opaque.
The type and only known species is the following:

Barycerus collaris Gyll—Regularly oblong-suboval, convex, more especially
so anteriorly as in all the preceding species, polished, black throughout, the
pronotum bright rufous; beak (co) not quite three-fifths as long as the prothorax,
abruptly flattened medially above, the prothorax a third wider than long, evenly

BRAZILIAN BARINZE 429

and moderately convex in profile, the sides moderately converging and evenly,

somewhat feebly arcuate from base to the rather rapid apical narrowing,, the
tubulation gradually formed, although rather long, and two-fifths as wide as
the base; punctures coarse though well separated laterally and apically, min-
ute and remote medio-basally, with a distinct impunctate median line; scutel-
lum with a few punctures; elytra oblong-suboval, very obtusely rounded behind,
somewhat longer than wide, a little wider than the prothorax and two-thirds
longer, the humeri slightly swollen; grooves moderate, feebly crenulate, coarsely
exarate at the sides and apex, the intervals with remote and_ infinitesimal
punctulation; under surface with moderate sparse punctures, the abdomen
feebly concave medio-basally, the fifth segment short, with the apex feebly
deflexed. Length 5.7 mm.; width 3.25 mm. Brazil (Chapada—campo). Nov-
ember. One specimen.

I have assumed that the specimen above described represents
collaris, but there are certain points in the original description that
are somewhat irreconcilable; for instance, it is said of collaris that
the scutellum is rounded behind and rufous, here it is rectilinearly
transverse at apex and black.

Tribe BARINI

This tribal group is composed of a considerable number of genera,
differing from some of the less characteristic Madarids only in
having the continuity of the sternal surfaces interrupted behind
the prosternum. Prosternal spines in the male are wanting, but in
Trogatia and Balbus, there are two short tubercles, which may be
regarded as rudimentary or vestigial spines; the genus Limno-
baroides, which has well developed spines and was assigned to the
Barini by Mr. Champion, is synonymous with the Madarid genus
Parisoschenus. The pygidium is more or less nearly vertical, and
‘5 sometimes short and hidden by the tips of the elytra from a
vertical viewpoint, as in Glyptobaris, the great obliquity of this
part, as well as the remarkable sexual specialization of the beak, so
frequently observable among the typical Madarids, being unknown
here. The genus Sonnetius, previously considered (p. 321) possesses
the sternal characters of the present tribe, with the extremely
oblique prominent pygidium of Conoproctus, and, in addition, a
very long but sexually much modified beak, so that the establish-
ment of a special tribe for it seemed warrantable.

The transitional genera between Barini and Madarini are chiefly
those allied more or less closely to Ampeloglypter. For instance,
Linoma, Linomaspis and the Pseudobarids—Pseudobaris, Hetero-
sternus and Craptus—that I have assigned to the Barini below,
could almost as well be placed in the Madarini near Ampbeloglypter,
and it is this group of genera which now prevents an accurate
delimitation of these two tribal groups, perhaps rendering necessary
an additional tribe based upon Ampeloglypter, Onychobaris and

430 MEMOIRS ON THE COLEOPTERA

allied genera, which would rank well with the Eurhinini and Son-
netiini, these also being intermediate tribal groups. However,
these matters can very well be left to the future for further taxo-
nomic consideration, when general knowledge of the subfamily
Barine shall have become more complete.

The genera now known to me are the following:

Mandibles straight, non-decussate, prominent when closed, the inner edges
rectilinear and virtually even, not at all dentate. Body elongate, parallel |
and convex; beak rather thick, strongly sculptured; antenne medial, with
small club; prosternum shallowly canalate, with narrow prominent emargi-
nate posterior lobe; tarsi slender, with large third joint and connate claws;
body glabrous; pygidium very large. [Type Baris pyritosa Germ.]

Castenus

Mandibles prominent when closed, not or but feebly decussate and moderately
dentate within’ iclaiwsi free: ry hake hace e chore ieee taal ore stot ete ren nee rarer 2
Mandibles bifid and decussate, more rounded externally and never conjointly
prominent when closed!) ... .6pci..cvstot. ms dhe pete gaa tpt Vicks ste ae rae aaa 5
2—Pygidium very short and transverse; elytra with some close vestiture, which
is more or less fasciitonminl arrancemenlt.n csi ee ener none 3

Pygidium rounded; body with much smoother and more glabrous integument.. 4
3—Pronotum with coarse, dense longitudinal rugze; scutellum very small,
rounded and rather free, the elytra without prominent subapical umbones;
pygidium entirely concealed from above by the tips of the elytra; beak
rather short and thick, arcuate; prosternum with two subapical fovee.
[Type Onychobaris rugicollis || Lec. (lecontet Chmp.)].........- Glyptobaris
Pronotum with fine and dense, longitudinal ruge; scutellum small, closely fitted
and triangular; elytra without prominent umbones; pygidium nearly as

in Glyptobaris; beak and antenne moderate; prosternum moderately canal-
ate, the cox well separated; body much smaller and more slender than in
Glyptobaris, the elytral scales forming a chevron. [Type A. obliquata nov.]
Amphibaris

Pronotum with fine and oblique, close rugulosity; scutellum larger, rather closely
fitted, transverse, angulate behind; elytra with prominent subapical um-
bones; pygidium subsimilar but somewhat larger; prosternum having a
sharply defined even canal, extending to the intercoxal suture; beak longer,
arcuate; body more broadly oval. [Type O. submetallicus nov.]....Opertes

4—Body oblong-oval, smooth and polished, the sculpture feeble; scutellum
small, rounded and rather free, the thoracic lobe prominent and narrowly
rounded; eltyra with remotely scattered white squamules and a dense spot
at the base of the third interval; beak moderate, arcuate; prosternum with

a deep parallel canal. [Type G. binaria nov.] Mexico........... Genevra
5—Pygidium rounded as in Baris and Pseudobaris, sometimes larger and more
sexitadly: MOUIIEC Sh. Be ook opcnis ele, ow letelvgai Ss ares 4 ane wen Se ee eee 6
Pygidium extremely short and transverse, as in the pygidiate Madopterids;
Claws Tree rrris rae neta aioe ale eke SOLE, © © SITES can sees so cucie See nee ee Re 34
6—Tarsal claws connate or closely contiguous at base, sometimes distinctly
diverginie: am EerenOster nis stn eee ictal caeienatee eae) oye sc oe ee eee 7
Tarsal.claws free... eicssie encircles sia gai ice rie pev ke SpOnS Sree cheb STEP OT aaa 20

7—Femora strongly dentate beneath. Tibize dentate externally; body broad,
cuneiform, densely sculptured and with very large separated scales; beak
long and slender; antennz long, slender, subbasal, with long first funicular
joint and small club; prosternum flat, narrowly separating the cox; scu-

BRAZILIAN BARIN 431

tellum large, transverse and narrowly canalate; pygidium feebly oblique.

[Irype Ss daspersus: MOV.|.0. 2).02).c55/ dx ae apn + Walia sleet vee cisiele ss Sindesus
Femora minutely and feebly spiculate beneath; tibiz not dentate externally;
pry eich unas mmimelesmeued alae.) e oats 8-02 alate Wain vine ole oie lel feo aS Me SA BE ns 8
Femora wholly unarmed beneath; pygidium small or moderate, apparently
SiiSteril eM SEREGN, cactcy ey decam ee Relea eat ola e wie oie ce we wr ele Ls ee Ss 9

8—Body elongate-oval, shining and more or less sparsely sculptured above, more
densely beneath;’ scutellum free, subquadrate-oval, more or less impressed;
elytra grooved; pygidium moderate; beak moderately long, feebly arcuate;
prosternum with a sharply defined canal; tarsi dilated, the claw-joint notably
long asarule. [Type Baridius tibialis Boh.] Mexico..........-- Craptus
Body oblong, parallel, convex, closely sculptured and partially squamulose;
scutellum subquadrate, excavated; elytra grooved; beak short and feebly
arcuate; prosternum flat, the posterior lobe rectilinearly truncate; legs
shorter; tarsi slender, with moderate claw-joint. [Type G. oblongus nov.]

Givenius
9—Pygidium short, transversely GaN al cvakens bs Sta tra Ras) ae rote Ma akavctels ieretet tts: 10
Pygidium narrower, small and semicircularly rounded............-.++++++5: 12

10—Body oblong, densely sculptured; scutellum large, free, transversely quad-
rate; elytra grooved; pygidium larger than in any of the following, twice as
wide as long and oval; beak moderate, arcuate; prosternum canalate, the
posterior lobe short; legs simple, the tarsi dilated; middle and posterior
tibie very acutely dentate externally near the base. [Type £. cribrosus

Tr ate. Preis rata l: SCN ait sitet tnievate iene so dain absietee ails ® Eugivenius
Body evenly oval, small, convex, polished and very feebly sculptured; pygidium
Graal cransversely Oval. .%ji vce. cpcaas Hone wee rinsed ts etnies ss O's is a

11—Prosternum with a smooth canal, the posterior lobe short; beak short, thick;
scutellum rather closely fitted, flat, ogival; elytra finely grooved; pygidium
transversely ridged; legs simple, the tarsi long, slender, the claws moderate.
GPs DEES MOM: Mdsaa:nle oie bata eamcina ote love olee = te =e eh or Plasiliopsis
Prosternum nearly flat, the posterior lobe short; beak very short, thick and
somewhat flattened; scutellum free, quadrate and concave; elytra finely

grooved; pygidium flat; legs simple; tarsi smaller, very slender. [Type

PEM IHE SUS HOWE «1st he 2 okt listetewte sl sic me wietes * stete eavele tains Bic Plasilia
12—Body smooth and feebly sculptured above; tarsi unusually slender, the
etre Sldnerie Simmel set. cts c es ater ctw lcdovelnte staloterstentoce we € eupiereyeislo wos sles vie trons 13
Body always rather strongly sculptured... . 2. 2.'s.ceb ee een eee ee eee os ven 15

13—Beak long; body moderately large, oval, polished and wholly glabrous;
prosternum deeply canalate, the lobe large, deeply and broadly sinuate;
prothorax with prominent rounded basal lobe, the scutellum closely fitted,
ogival and flat; elytra strongly grooved; legs simple, the tarsi unusually
long, slender and with very long claw-joint. [Type L. rostrata nov.]
Liobaridia
Beak short, but more or less slender; body much smaller and narrower, sub-
glabrous, having very minute inconspicuous setiform squamules; prosternum
evenly canalate; tarsi smaller; elytra more finely grooved; posterior pro-
sternal lobe larger and broad, somewhat as in Ampeloglypter...........- 14
14—Basal thoracic lobe small, evenly rounded, the scutellum wider than long,
somewhat free; pygidium with even surface. [Type L. lustrans nov.|
Linoma
Basal thoracic lobe sinuato-truncate, the scutellum closely fitted, flatter, finely
punctate and rounded-subquadrate; pygidium shorter, transversely ridged
near the base, somewhat as in Plasiliopsis. [Type L. picea nov.]
Linomaspis

432 MEMOIRS ON THE COLEOPTERA

15—Tibiz angulate and more or less prominent externally at base; prosternum
evenly and deeply canalate, the posterior lobe broad but short; body oblong-
oval, strongly, densely sculptured and with coarsely grooved elytra, glabrous;
beak rather short and thick; prothorax with short and gradually formed
basal lobe, the scutellum free, rounded-subquadrate; pygidium small, simple;
farsiismall, [Type A. tbs mov.) oie ts 2a ctelaeeeienee Anagivenius
TVibiz simple, ‘not angulaté- extemally,-\. ecs @iasc.sesi a eee eee eee ee 16
16—Beak short, oval, scarcely over twice as long as wide and very thick; antenne
short, the first segment of the club polished; body stout, oval, very coarsely,
densely sculptured, the elytral grooves broad and deep; pygidium small,
simple; scutellum free, transversely subquadrate; prosternum very shallowly
canaliculate, the lobe very short; legs short, the tarsi slender. [Type P.

OVLVOSEPES OVI ee Caos SO ea Pe eee nee Prantisus
Beak of normal form, moderate in length; body narrower, more or less small in
size? pygidimmiusmall simple. :):.: +. .tccteieh Sono mere de heb aya Renee 17

17—Prosternum with a posteriorly bifurcate excavation, the dividing projection
sometimes obsolete, the posterior lobe prominent, extending well over the
mesosternum, but not so closely continuous as in the Madarini, and often
medially excavated; body small, sometimes notably minute in size, always,
rather strongly, sometimes very densely punctured, the scutellum small and
rounded as a rule, more or less closely fitted; tarsi short and slender; first
abdominal suture obliterated medially. [Type H. carbo Kirsch]

Heterosternus
Prosternum with apparently simple canal; body narrower and more elongate,
less strongly sculptured, especially the abdomen, where the first suture,
though fine, is entire; beak somewhat long and slender; prothorax distinctly
more tubulate at apex; tarsi much longer, the claws widely divergent, though

in close contact at the extreme base. [Type JN. cylindroides nov.]
Neogivenius
Prosternum with a simple and more parallel canal...................-0005- 18
18—Body very small, slender and cylindric, densely sculptured and glabrous;
prosternal lobe short; scutellum free, rounded; elytra moderately grooved,
the intervals with imbricate sculpture; pygidium transversely prominent
near the apex; legs short, slender, the tarsi small, with very small claws;
antennal club rather small, elongate-oval and moderately pubescent. [Type
A, cylndracanoy: | week: hee oR REe BOE REE ee eae Anathaniops
Body not:cylindsic; \scutellum frees. oc nce ern eet eee ie 19
19—Beak thick; antennal club narrow, elongate, subequally divided by the
sutures and fully as long as the preceding six joints; body glabrous; pro-
thorax not evidently tubulate at apex, the small basal lobe emarginate;
scutellum obtriangular, impressed; elytra with basally coarser, catenulately
punctate grooves; pygidium very feebly, transversely swollen near the base;
prosternum broadly and shallowly canalate, the lobe short; legs simple, the
tarsi slender, with very small claws. [Type L. santaremica nov.]..Lupulina
Beak moderate, arcuate, the antennal club large, evenly oval, abrupt and as long
as the preceding six joints; body very small in size, glabrous and shining,
less strongly sculptured; prothorax not evidently tubulate, the small feeble
basal lobe very abruptly and deeply sinuate; scutellum small, free, sub-
quadrate and narrowly canaliculate; elytra smoothly grooved; pygidium
small, simple; prosternum very feebly, longitudinally impressed, the lobe
narrow, extending to the mesocoxal tangent; legs short, the tarsi very
slenders , [bype 6. clavigera ROV.|. << i.c25 eels « «ois pita er ear Brachylinoma
Beak moderate, the antennal club small, stout and evenly oval, with much larger
basal segment; body very small and with distinct setiform squamules;
prothorax scarcely at all tubulate at apex and with small rounded basal

BRAZILIAN BARINA 433

lobe, the scutellum widely free, small, subquadrate and excavated; elytra
moderately striate; pygidium small, nearly even; prosternum sharply and
deeply canalate, the lobe short; legs moderate, the tarsi small and slender,
the third joint barely at all dilated; claws well developed. [Type G. piceipes
TLOW 2, [Ngee ae eT acter ces ot Set ney a ra Aetutuvies suds Felea ec de wAlNel euin rau cree eers Giveniopsis
20—Beak short or moderate in length, never very slender.................. 21:
Beak long, strongly arcuate, becoming notably slender distally; body relatively
large, parallel, polished and very feebly sculptured, glabrous; pygidium
large, the propygidium well developed; prosternum deeply canalate..... .33
21—Prosternum flat or but feebly and indefinitely impressed................ 22
Prosternum canalate, very shallowly in Zathanius and Euzathanius, and some-
what so in Dalcesta; body small in size, much larger in some species of

EAL A INOMAR EOC crm aE LG RES GPRS AS. eta) orzTNls sfacsl {fortis S90, 04 SeonchisropapSyoie, doers thee x 28
22—Body large or very large in size, comprising some of the largest of the sub-
Fannie cee lUmD ree AS USUAL ee 6 24) < js eye «brs ais ei oree'a eres ded bos ee ote 23
Bodyssmallignmeny moderate dm SiZeel Wife sf cya lei vs ojacatinip es sibanclbniwnie: 27
23—Posterior end of the prosternum proper, that is, at the intercoxal suture,
Prommemuor apparently Ifees. yf) se seins ali emiad «hn cies dod cals a biveaows 24
Posterior end not prominent or free, the suture fine........................ 25

24—Beak cylindric, moderately slender and partially almost smooth; antennze
not very thick, the club small, barely longer than wide; body subrhombic-
oval; scutellum with three transverse excavations; elytral strie fine, very
coarsely and catenulately foveate. [Type M. resplendens nov.]. Megalobaris
Beak short, thick and strongly punctured throughout; antenne (<7) short, very
thick, subcylindric, the funicular joints close and very transverse, the club
small, almost globular; body parallel; scutellum quadrate-oval, smooth;
elytral striz coarse, with relatively smaller catenulate punctures; propy-
gidium well developed in the female. [Type D. oblongus nov.]. . Dissopygus
25—Antennal club large, oval, as long as the five or six preceding joints. Body
oblong-oval, with somewhat prominent humeri; beak rather long, arcuate;
scutellum subquadrate; elytral striae moderate, with relatively moderate
catenulate fovee; propygidium somewhat visible in the female. [Type 5S.
WEILER BONE NPs yd (aor tics hen, onl GieN ars Mteconeeshehtustem Sst Phaaie ae or Sclerobaris
ivgiveyaiiall! ts) [nok crane | Wererohatov(c C8 eae Ge eee ee ae ee IT We Me er 26
26—Elytra not exarate distally and with moderate subapical umbones, moderately
undulated, the strie having conspicuous elongate-oval catenulate fovee;
beak cylindric, moderate in length, smoother distally; scutellum subquad-
rate-oval or elongate, variously impressed; pygidium very prominently,
longitudinally tumid in the male. [Type Baridius metallicus Boh.]
Stereobaris
Elytra conspicuously and deeply undulated, coarsely exarate at apex and with
very prominent umbones, the striz finely and smoothly grooved, elongate-
foveate at base; pygidium flat and finely carinate; scutellum transversely
quadrate; beak very short, thick and strongly, densely punctate. [Type
DiressanonmstrosaGerim: [isto Walks Anes « A eee lec Shaw Cymatobaris

27—Beak thick, separated from the head by a fine abrupt sulcus and about as
long as the prothorax; basal segment of the antennal club half the mass and
glabrous; body stout, oblong, herissate with stiff bristles; claw-joint un-
usually long and with very distinct basal node. [Type G. hystrix nov.]
Glyptobaridia
Beak thick, always shorter than the prothorax, separated from the head by a
more or less sharply marked reéntrant angle; basal segment of the antennal
club large and glabrous; body oblong-oval, never with more than slender
inclined squamules, which are evenly distributed in typical forms, but

T. L. Casey, Mem. Col. X, Oct. 1922.

434 MEMOIRS ON THE COLEOPTERA

condensed in a narrow elytral fascia in fasciata; claw-joint moderate, the
basal node less strongly differentiated. [Type Rhynchenus timidus Oliv.]
Baris
Beak slender and not separated by an impression, shorter than the prothorax;
basal segment of the club pubescent, with a fine basal margin abruptly
glabrous; body elongate, parallel, glabrous above, minutely squamulose
beneath; claw-joint moderate in length and notably slender; pygidium
well developed, very finely punctate; scutellum more minute; prosternum

feebly bituberculate in the male. [Type T. reversa nov.]......... Trogatia
28—Prothorax but little narrower than the elytra: .5 27.22 sane eee wee 29
Prothorax much narrower than the elytra and cylindric; body small in size,
slendér,. glabrous and polished. vi... 0) ty. Gittins ee or ena se dees aa Poa 32

29—Prosternum with a shallow though sharply limited canal, the coxe narrowly
separated; body oblong-oval; elytra even in surface, strongly grooved;
pygidium well developed, convex; beak thick, compressed and strongly
sculptured; antenne short, the club large, oval and as long as the five or
six preceding joints. [Type Z. lyratus nov.].........:.-.:6..:: Zathanius
Prosternum with a wide and sharply limited but rather shallow and moderately
concave canal, the coxz narrowly separated; body nearly as in the preceding,
but with the coarsely grooved elytral surface undulate; pygidium nearly
flat, concealed from vertical view; beak thick, not compressed; antenne
more slender, the oval club smaller, as long as the three or four preceding
joints, similarly pubescent throughout. [Type E. undulatus nov.]
Euzathanius
Prosternum deeply and conspicuously canalate..............0. see ee eee es 30
30—Beak rather slender, longer than the head and prothorax; body rhombic-
oval, polished, glabrous and feebly sculptured above. Antenne slender, the
club pubescent and oval; elytra rather narrowly grooved; pygidium moder-
ate, convex and vertical; anterior coxe well separated. [Type 7. perpolitus
(10) il ne a re rent emmr ote rie ie Beha ai metic se oe Thanius
Beak thicker, not quite as long as the prothorax; body elongate-oval, strongly
convex, polished, glabrous, excepting a cluster of scales at the base of the
third interval, feebly sculptured; antennz with the funicle dilated distally,
becoming almost as wide as the club, which is small, pubescent, with its
basal segment fully half the mass; pygidium semicircular, convex; anterior
coxe well separated, the posterior lobe not feebly sinuate as in the preceding,
but with a large semicircular emargination. [Type M. emarginatus nov.]

Mesothanius
Beak notably thick and shorter than the prothorax in both sexes; body parallel
in form, glabrous; anterior coxe well separated................--...-- 31

31—Body above the median size, with more or less undulated elytral surface;
beak very thick, strongly arcuate as a rule, not compressed and separated
by a feeble impression; antennal club rather small, thick, oval and with a
glabrous basal segment as in Baris; elytra sharply grooved, with flat inter-
vals; pygidium well developed, slightly oblique, flat and more or less visible
from above. [Type Baridius carnifex Boh.].......0........5. Baptobaris
Body small, parallel, the elytra not undulated and with very coarse punctured
striz and narrow convex intervals; pygidium small, much shorter and not
visible from above; beak rather thick, feebly arcuate, separated by a some-
what deep sulcus; antennal club small, oval and conspicuously pubescent.
[Type 'O: ‘suleatila Mow: |p; <p: we geievtenaci clk taal Orthobaridia
32—Beak moderately arcuate, separated by a distinct impression; antenne
moderate, the club well developed, about as long as the four or five preceding
joints, oval and unusually coarsely pubescent; scutellum large, triangular
and closely setulo-squamulose; elytra parallel, finely grooved; pygidium
moderate, vertical. [Type D. calvata nov.]...........-..:2+--5: Dalcesia

BRAZILIAN BARINE 435

33—Body rather large, parallel, polished, glabrous and very feebly sculptured;
scutellum small, flat, subcordate and rather closely fitted; propygidium (9 )
very large, carinulate, the pygidium large, rounded, vertical, strongly convex
and shining; prosternal canal very deep, parallel and sharply defined,
extending between the coxe; anterior tibiz with a large and obtusely tri-
angular, lamellate tooth beneath beyond the middle, this probably being
non-sexual; tarsi moderate, not dilated; antennz long, slender, with notably
long first funicular joint, the club narrowly oval and gradually formed;
mandibles internally dentate, perhaps not decussate. [Type A. caudalis
BUEN llei < dlacic 4 0 Sap cha BckOTy ERS ee GANA NRE aR ei ea at Ra Attangus
34—Form elongate-suboval, polished, glabrous and very feebly sculptured; beak
moderately thick and elongate, feebly impressed along the sides basally;
antennz moderately long, with small and usually conoidal club; prosternum
feebly canalate, not tuberculate in the male, the coxe narrowly separated;
prothorax tubulate at apex, not conical; scutellum free, subquadrate; elytra
with very fine, almost obsolete striz and with strong subapical umbones,
and also conspicuous uneven apical impression; legs moderately long, simple.
[Type A. bonvouloiri Kirsch]. ..........--+++e esses eee eee Anopsilus
Form elongate, rhomboidal, the other characters almost as in the preceding,
except that the prothorax is evenly conical and not definitely tubulate at
apex, the prosternum with two triangular tubercles in the male. [Type
BUTS CONIGOUES DON.) 0 52. cle ce cc ee wee ee tee ee ee we anes Balbus

Balbus Pasc., was held to be synonymous with Anopsilus by
Champion; it is indeed very closely allied, but there are a few
rather important differences. The type of Attangus may be a
previously described species, but I have been unable to identify it.
The extensive genus Heterosternus is one of the neotropical repre-

sentatives of the neosubarctic Pseudobaris and was also suppressed
by Mr. Champion, but in my opinion it is amply valid.

Castenus n. gen.

This is a very remarkable genus which would apparently be out
of place in any scheme of classification that could be devised, and
I therefore place it at the head of the Barini, because of the typically
Centrinaspid mandibles, coupled with a very large vertical male
pygidium, this being smaller but still unusually large in the female.
The body is elongate and parallel, convex, glabrous, polished and
very feebly sculptured. The beak is moderate in length, feebly
tapering, very coarsely and longitudinally sculptured and separated
by a feeble impression. Antenne near four-sevenths in both sexes,
moderate, somewhat slender, the first funicular joint as long as the
next two, the second as- long as the succeeding two, the outer
joints not much enlarged, the club small, oblong, very rapidly
pointed, with its basal segment fully two-thirds the mass. The
anterior cox are separated by barely half their width, the inter-
coxal suture deep and conspicuous, the posterior sternal lobe sub-
parallel and prominent, extending not quite to the mesocoxal
tangent, and with its apex deeply, triangularly emarginate, the legs

436 MEMOIRS ON THE COLEOPTERA

moderate, simple and with slightly inflated femora. The prothorax
is tubulate at apex, the basal lobe small and truncate, the scutellum
moderate and free and the elytra finely, sharply grooved. The large
vertical male pygidium is subquadrate-oval, evenly convex and very
finely, densely punctulate. The abdomen (<) is almost unmodified
at base, but the fifth segment has a large deep median cavity. The
species are apparently two in number as follows:

Body subcylindric, polished, glabrous, with polished greenish-brassy lustre; beak
fully as long as the head and prothorax in both sexes, the antenne piceous;
prothorax a fifth wider than long, the sides parallel and broadly arcuate,
gradually broadly rounding beyond about the middle, the tubulation short,
half as wide as the base; punctures sparse and very fine, a little more distinct
laterally and subrugulose at the extreme sides; scutellum flat, obtriangular,
very free; elytra nearly three-fourths longer than wide, parallel, or with
very feebly converging and slightly arcuate sides and rapidly obtusely
rounded apex, barely at all wider than the prothorax and more than twice as
long, the humeri very feebly swollen; intervals flat, with some feeble infini-
tesimal punctulation. Length 6.45-6.8 mm.; width2.75-2.85mm. Brazil.
Two specimens, without further indication of locality, sent by Desbrochers
des Logess [9 -Barzdius miidus (Gyll |. oa. aoe pyritosus Germ.

Body throughout almost as in the preceding, but a little less slender and bright
pale cupreous in lustre above, black, with zneo-viridate lustre beneath;
beak (2) very little longer than in the preceding and somewhat longer than
the head and prothorax, similarly sculptured, the antenne evidently longer;
prothorax more elongate, about as long as wide, and with the gradually
formed apical tubulation distinctly longer, the sculpture and the scutellum
almost similar; elytra of nearly similar form and structure but broader, the.
fine grooves posteriorly much more distinctly punctate; pygidium somewhat
larger than in the female of pyritosus and with the punctures less minute
and less dense, more distinct.. Length 7.4 mm.; width 2.95 mm. Brazil
(Rio"de Janeiro) Deceniberao.es. 2-6 sre see se ce ook cupreolatus n. sp.

The species described as cupreolatus, from the female alone, is
closely allied to pyritosus, but is apparently not the same; the male
would probably settle this point more decisively however.

Glyptobaris Csy.

Glyptobaris is a genus of wide geographic distribution, but, like so
many others, does not occur in the Pacific coastal regions, nor, in
South America, apparently south of the Amazon regions. The
body is rather stout, with subcuneiform elytra, and the surfaces
above and beneath are very coarsely sculptured, the pronotum
densely and uniformly, longitudinally rugose. There seems to be
scarcely any sexual disparity, and the sculpture of the under surface
sometimes becomes very dense, as in some of the Ampeloglypterids.
I cannot identify the two following species with anything hitherto
described:

BRAZILIAN BARINE 437

Body oblong-ovoidal, posteriorly attenuated, rather shining, the elytra alutaceous, *
piceous-black in color, subglabrous beneath, the pronotum with a few re-
motely scattered slender pale squamules, the elytra with a coarse transversely
zig-zag design of dense coarse linear yellowish squamules in not quite basal
third, and also with some scattered squamules of the same kind posteriorly,
more especially noticeable in a transverse line near the middle; beak thick,
arcuate, tapering distally, densely punctured, more finely and sparsely so
beyond the antenne and about as long as the prothorax, the latter two-fifths
wider than long, the feebly converging sides slightly arcuate, rapidly rounding
in about apical third to the transverse and wholly unconstricted apex; basal
lobe very gradual and with angulate apex; .anastomosing ruge very coarse;
scutellum small, free, quadrate and glabrous; elytra cuneate, a third longer
than wide, just visibly wider than the prothorax and three-fourths longer;
surface very even, except that the intervals toward the suture in rather less
than apical half are finely carinate; grooves moderate, punctate, gradually
coarser basally; under surface with very coarse Buen punctures, the
propleura obliquely rugose. Length 3.3-3.8 mm.; width 1. 7-1.9 mm.
Brazil (Santarem). Four specimens.. 2 : .amazonica n. sp.

Body more oval and less oblong, the prothorax Pelatinely ‘not so subquadrate,
shining, with opaculate elytra, the vestiture almost similar but orange-brown
in color and, on the elytra, extending through more than basal third; beak
nearly similar but relatively more elongate, somewhat longer than the
prothorax, the latter fully two-fifths wider than long, the sides distinctly
converging and broadly arcuate, very gradually more rounded anteriorly to
the similarly unconstricted apex, the gradually formed basal lobe very
different, being rather broadly rounded; rugz much less coarse but of similar
nature, though having a distinct narrow, feebly carinulate median smooth
line, not developed in the preceding species; scutellum wider and transversely
lunate; elytra shorter, a fourth longer than wide, more distinctly wider than
the prothorax, the oblique sides much more rounded but somewhat irregular,
the surface more uneven, having a transverse submedian and another sub-
apical series of short carinules; grooves much finer and very inconspicuously
punctate; under surface of the hind body with less coarse and closer punc-
tures, finer and very dense toward the sides of the abdomen. Length 3.1-
3.5 mm.; width 1.5-1.65 mm. Brazil (Santarem). Four specimens.

amnicola n. sp.

The anterior coxee are rather widely separated, sometimes by
more than their own width, but the posterior lobe of the pro-_
sternum is very short and broadly rounded; the intercoxal suture
is obliterated. ;

Amphibaris n. gen.

The unique type of this genus is a comparatively minute and
slender relative of Glyptobaris; the position of the beak prevents a
clear observation of sternal characters, but the coxe are rather
small and the anterior widely separated, the prosternal surface
apparently flat; the antenne seem to be nearly as in Glyptobaris,
where the small oval club is entirely pubescent. The beak is
rather thick, strongly punctate, moderately arcuate and separated
from the head by a moderate transverse impression. The prothorax
is distinctly though briefly tubulate at apex and with short and

438 MEMOIRS ON THE COLEOPTERA

“broad, very gradually formed and narrowly blunt basal lobe, and
moderately close-set, triangular scutellum, the sides of which are
slightly arcuate. The elytral surface is very even, the striz rather
fine, the pygidium nearly as in Glyptobaris, but the abdomen is
much more elongate and less triangular. The type is the following:

Amphibaris obliquata n. sp—Slender, only very moderately convex, sub-
parallel, gradually narrowed posteriorly, moderately shining, piceous-brown in
color, with oblong slender yellowish scales, very irregular in distribution, there
being very few widely scattered on the pronotum, more numerous on the subbasal
part of the elytra, rather dense at the base of the third interval and near the
humeri and also rather close-set in a wide oblique line extending outwardly
behind the scutellum and largest near the central point of each elytron, wanting
behind this chevron; beneath, they are whiter, forming a dense spot before each
anterior coxa and dense throughout the met-episterna; beak thick, arcuate, as
long as the head and prothorax and with a few large scales before the eyes; pro-
thorax only a fourth wider than long, the sides parallel and straight, rapidly
rounding and oblique in apical third to the tubulation, which is more than half
as wide as the base; rugulosity rather fine and dense, replaced by some isolated
punctures near the smooth median line visible in basal half; elytra one-half
longer than wide, just visibly wider than the prothorax and four-fifths longer,
the oblique sides feebly arcuate, the apices rounded; grooves narrow, not evidently
punctate, the intervals flat, minutely, sparsely punctulate; first two connate
ventral segments about half the entire abdominal length. Length 2.35 mm.;
width 0.85 mm. Brazil.

A single specimen was sent to me by Desbrochers des Loges,
without indication of locality, other than that noted.

Opertes n. gen.

The body in this genus is broadly oval and strongly convex, with
undulated elytra and almost glabrous surface. The beak is rather
long and thick, evenly arcuate and densely punctate, not separated
by a distinct impression and feebly compressed. Antenne slightly
beyond the middle, moderate in length, the first two funicular
joints evidently elongate, the outer joints slightly increasing, the
club moderate, oval, entirely pubescent and, as in Glyptobaris,
having very distinct sutures. Prosternum with a deep and sharply
marked parallel canal, separating the coxe by rather more than
their width, the posterior lobe short, broadly sinuate. The pro-
thorax is gradually tubulate at apex and with small rounded basal
lobe, the scutellum flat, wider than long, closely fitted, truncate at
base, parallel at the sides and broadly angulate at apex. The
elytra are moderately grooved, the pygidium more than twice as
wide as long and rather convex, vertical, the legs and tarsi moderate
and normal. The type is as follows:

Opertes submetallicus n. sp.—Broadly oval, convex, shining, the elytra alu-
taceous, dark, with bright bronzy lustre throughout; the only vestiture above is
composed of slender whitish scales, condensed in a small quadrate spot at the

BRAZILIAN BARIN 439

base of the fifth, and one, twice as long as wide, at the base of the third interval,
the two third interval spots connected by a posteriorly subangulate line at some
distance behind the scutellum, with the angle on the suture; the only noticeable
vestiture beneath is a condensation of whitish scales behind the middle of the
met-episterna, not extending to the apex; beak distinctly longer than the head
and prothorax, the antennz rufo-piceous; prothorax large, a third wider than
long, the sides feebly converging and nearly straight, rapidly rounding and very
oblique beyond two-thirds to the feeble apical sinuses, the tubulation not quite
half as wide as the base; surface with fine but deep, separated and oblique,
somewhat disintegrated rugze, replaced broadly toward the distinct smooth
median line by moderate punctures arranged in continuation of the oblique
ruge; elytra oval, a third longer than wide, at the rather pronounced humeral
swellings evidently wider than the prothorax, three-fourths longer, the sides
somewhat unevenly arcuate, the surface strongly undulated and with distinct
subapical umbones; grooves moderate, punctulate; intervals with fine and loosely
confused punctulation; under surface coarsely, closely punctate, the propleura
obliquely rugose. Length 5.0 mm.; width 2.6 mm. Brazil (Rio de Janeiro).
November. One specimen.

The type is a male, the abdomen having a rather deep impression
on the median line anteriorly but not attaining the base.

Genevra n. gen.

If either of the species here assigned to this genus has already
been described, I am quite unable to trace it among the described
species of Pseudobaris. The tarsal claws are perfectly free, diver-
gent, arcuate and rather slender, which, with the straight mandibles,
prevents an assignment to the true Pseudobaris. The body is
oblong-ovel, convex, polished and feebly sculptured, deep black and
glabrous, excepting a broad oblong-oval spot of dense white scales
at the base of the third interval, and a few widely scattered over
the general surface. The beak is evenly arcuate, compressed and
separated by an obtuse reéntrant angle, the mandibles straight,
non-decussate and moderately dentate within. Antenne rather
short, submedial, the first funicular joint as long as the next two,
the outer joints not much enlarged, the club abrupt, oval, pubescent,
with distinct sutures and as long as the preceding four joints. The
prosternum has a distinct parallel canal and rather short truncate
posterior lobe, the coxe rather well separated. The legs are short,
normal, the hind tarsi as long as the tibia. The two species in
my collection are the following:

Form parallel, suboval, strongly convex, very polished and deep black; beak (92)
evenly, moderately slender and fully as long as the prothorax, the antenne
black; prothorax glabrous, but with a few white scales near the hind angles,
nearly a third wider than long, cylindric, the sides parallel and feebly arcuate,
rapidly rounding in apical third to the sinuses forming the distinct tubulation,
which is much more than half as wide as the base, the basal lobe gradual
but prominent and rounded; punctures coarse and evidently separated at
the sides, gradually becoming fine and sparse thence to the middle; scutellum

440 MEMOIRS ON THE COLEOPTERA

small, free, transversely oval; elytra a third longer than wide, at the feebly
tumid humeri barely visibly wider than the prothorax, nearly twice as long,
the sides subparallel and feebly arcuate, becoming evenly rounded behind
about the middle; surface even, the subapical umbones large and feeble;
grooves even, feebly punctate, sharply defined, coarser though not acutely
exarate at apex, a third or fourth as wide as the intervals, which have single
series of very minute and well spaced punctules; under surface moderately
coarsely punctate, each puncture with a slender white squamule. Length
3.25 mm.; width 1.45 mm. Mexico (Orizaba). One specimen.

binaria n. sp.

Form nearly as in the preceding but smaller and narrower, the lustre, coloration
and vestiture almost similar; beak (<) nearly similar, almost as long as the
head and prothorax, the antenne very slightly beyond the middle; prothorax
shorter, two-fifths to nearly one-half wider than long, almost similar in
outline but with shorter tubulation; sculpture almost similar, except that
the punctures at the extreme sides are somewhat less coarse and still more
separated; elytra nearly similar; pygidium (co) larger and more transverse
than in the preceding female type, the male with the abdomen feebly im-
pressed along the middle basally. Length 2.5—2.75 mm.; width 1.1-1.22 mm.
Mexico(Vera'Gruz)®” Tworspectmensi:..24-- 6. ene ae curticollis n. sp.

Although represented by opposite sexes, I have scarcely any
doubt that there are two species included in the material at hand.
The Central American Pseudobaris leucostigma of Champion, also
belongs evidently to this genus, but is shorter, more oval and less
cylindric than the species above described.

Sindesus n. gen.

The body in this remarkable genus, which stands enttrely alone
in the tribe, is broad and convex, obtusely cuneiform and very
closely and coarsely sculptured, the beak long, cylindric, arcuate
and not separated from the head by a depression. Antenne slender,
between basal third and fourth, the scrobes subhorizontal, the first
funicular joint as long as the next three and as long as the club, the
outer joints somewhat longer than wide, the club narrow, gradually
acutely pointed, pubescent and as long as the four preceding joints.
The prosternum is large, flat, with a simple apical constriction,
obsolete basal lobe and evident suture, the coxze separated by two-
fifths their width. The legs are moderate, the femora dentate
beneath near apical third and the tibia obtusely dentate externally,
the tarsi moderately dilated and with connate claws. Prothorax
very short, inflated, with very brief and feeble tubulation and large,
broadly rounded basal lobe, the scutellum free, glabrous, very
transverse and abruptly, deeply hollowed in more than median
third. The elytra are coarsely, deeply striate but not grooved, the
pygidium small, simple and subvertical and the first ventral suture
fine though evident throughout. The type is the following:

BRAZILIAN BARINZ 441

Sindesus dispersus n. sp.—Broad, convex, obscure piceo-rufous in color, the
legs and beak blacker; upper surface with large and rounded, closely decumbent
yellowish scales, evident though sparse toward the pronotal sides, closer medio-
basally and scattered over the surface of the elytra, each occupying a coarse
puncture, the scales nearly similar in form and distribution beneath, but dense
on the prosternum behind the suture and at the anterior limits of the meta-
sternum; everywhere mingled with very small whitish squamules; beak (2)
fully half as long as the body, finely, sparsely punctate, gradually more strongly
and densely toward base and continuously over the head; antenne rufous, the
shaft with a few long pale squamules distally; prothorax about twice as wide as
long, the sides strongly arcuate, becoming strongly oblique beyond the middle,
much wider at somewhat behind the middle than at base; tubulation a third the
maximum width; punctures rather coarse and separated by barely half their
diameters throughout, with a short central impunctate space; scutellum black;
elytra a fourth longer than wide, at the rounded humeri distinctly wider than the
prothorax, about twice as long, the sides evenly oblique and straight from the

humeri to the broadly rounded apex; striz very coarse, deep, somewhat impressed,
the intervals feebly convex, very coarsely, closely and confusedly punctate and
rugose; under surface with moderately coarse separated punctures, the propleura
more coarsely punctato-rugose. Length 6.7 mm.; width 3.7 mm. Brazil
(Chapada). November. One specimen.

There are no manifestations of sex on the under surface and the
type is therefore presumably a female.

Craptus n. gen.

The type of this genus is the large Baridius tibialis Boh.., of
Mexico, placed in Pseudobaris by Mr. Champion. It belongs to
the Pseudobarid series, but differs from typical Pseudobaris, which
I think is essentially neosubarctic, in the larger size of the body,
less closely sculptured integuments, slightly undulated elytra,
shallower prosternal sulcus and inferiorly denticulate femora, but it
has an almost similar general organization, straight and connate
tarsal claws and strongly bifid decussate mandibles.

The Pseudobarids—although Heterosternus is an older name—
form a very important element in the Barid fauna of North and
South America, and, when the subject shall have been studied in a
thorough and discriminative way, numerous genera will be recog-
nized among the forms now assigned to Pseudobaris. 1 have made
three of these known at the present time, under the names Genevra,
Craptus and Lupulina, and the following are three additions, which
I here propose simply as subgenera of Pseudobaris; they are all
from the Central American regions:

Tarsal claws connate at base, elytral surface more or less undulated; integuments

polished and more or less FEC bly SCUIPCULEC s.r tes wicie yest id pi rena 2
Tarsal claws slender, arcuate, divergent and perfectly free, not even contiguous
orgs SESS wc’: ota i SO aI ae ene rn Rar a gOK aR auaRenG Mer ee Pena 2

2—Elytral apices evenly rounded; prosternal canal deep, the posterior lobe large
and broad, truncate. [Type Baridius undulatus Say}. Craptidia n. subgen.

442 MEMOIRS ON THE COLEOPTERA

Elytral apices angulate, giving rise to an angulate emargination at the suture;
prosternal canal shallow, the posterior lobe very short and broad, evenly
arcuate at apex; body generally small in size, with still finer, sparser and
feebler sculpture than in the preceding. [Type Baridius acutipennis Say]

Microcraptus n. subgen.

3—Body subcylindric, very small in size, rather strongly sculptured, the elytra
evenly rounded behind; prosternal lobe narrower, moderate; tarsi very
slender. [Type Pseudobaris cylindricollis Chmp.]..Craptoleptus n. subgen.

From specimens sent by Mr. Champion, I surmise that Craptidia
will include carinipectus and mutabilis, besides undulata, and that
callosipennts belongs to Microcraptus.

In the neotropics there are many generic types lying in the
‘“‘no-man’s land’’ between Pseudobaris and Ampeloglypter, such as
Linoma and Linomaspis—the former by way of Heterosternus; but
they are generically distinct from either.

Givenius n. gen.

The body here is oblong, convex and closely punctured, with
sparse and unevenly distributed fine squamules. Beak rather short,
moderately thick, cylindric and but just visibly arcuate, with large,
bifid and broadly decussate mandibles, and it is separated from the
head by only the feeblest impression. Antenne slightly beyond
the middle, very moderate, the first funicular joint about as long
as the next two, the outer joints rather close and gradually a little
broader, the club pubescent, oval, moderate and with very distinctly
marked sutures, the basal segment two-fifths the mass. Prosternum
flat, the posterior lobe broadly arcuate; coxz separated by nearly
their own width, the suture obliterated medially, distinct laterally.
Legs rather short, normal, except that the anterior femora are
minutely denticulate beneath. Prothorax very briefly although
sharply tubulate at apex, the basal lobe short, obtuse and very
gradually formed; scutellum slightly free and moderately trans-
verse, subquadrate-oval, its surface broadly and deeply impressed.
Elytra strongly and sharply grooved, the pygidium small, vertical
and transverse. The tarsal claws are in close contact almost
throughout, but apparently are not connate. But one species is
known as follows:

Givenius oblongus n. sp.—Form rather broad, oblong and convex, piceous-
black, not very shining, the squamules above slender, yellowish, very sparse on
the pronotum, herissate in single interstitial lines on the elytra, but condensed
toward base of the second interval and in a shorter spot at the base of the third
and fourth, also in a small area near, but not at, the base of the fifth; beneath
they are small, very fine and sparse, larger on.the abdomen and more numerous
but not larger or dense on the met-episterna, except posteriorly; beak equal in
length to the prothorax, closely punctulate and with a few slender squamules;
antenne piceous; prothorax a fourth to nearly third wider than long, the sides

BRAZILIAN BARINE 443

parallel and feebly arcuate, gradually rounding beyond the middle, the tubulation
half as wide as the base (c”) or more (9); punctures moderately coarse, dense,
gradually slightly separated medially, the smooth median line biabbreviated;
elytra fully a fourth longer than wide, barely at all wider than the prothorax,
three-fourths longer, the sides parallel and very feebly arcuate, rapidly very
broadly obtuse at apex; grooves deep, fully half as wide as the intervals, which
are coarsely, closely and uniseriately punctate, with narrow smooth sides; ab-
domen strongly, sparsely punctate, the last three segments finely and very densely
cribrate, as in some of the Ampeloglypterids. Length 3.75-3.9 mm.; width
1.8-1.9 mm. Brazil (Santarem). Two specimens.

The two examples at hand seem to represent male and female»
but there are no special sexual modifications.

Eugivenius n. gen.

The body in this genus is stout, oblong, convex, densely punctate
and with fine scattered squamules as in Baris. The beak is rather
thick, arcuate, compressed and coarsely, very densely punctate
throughout, not separated by a definite sulcus, but with an obtuse
impression along the sides beyond the antenne, which are medial
and moderate, the first funicular joint as long as the next two, the
outer joints compact and more transverse, the club somewhat
gradual, thick, oval, about as long as the four preceding joints and
very densely, coarsely pubescent. The prosternum has a wide and
very feebly concave, not sharply defined longitudinal impression,
and separates the coxz by less than half their width, the posterior
lobe moderate, not extending to the mesocoxal tangent and feebly,
medially sinuate at apex. The prothorax is not tubulate, the basal
lobe short and very obtuse and the scutellum is peculiar, being free,
twice as wide as long, very densely punctate and rectilinearly
parallelogramic, the elytra deeply grooved. The pygidium (co) is
evenly oval, feebly convex and much more than twice as wide as
long. Legs moderate, the tibice notably short, the two posterior
pairs very acutely dentate externally near base, and the tarsi are
short and broad, the claws closely contiguous for most of their
length, thick and smooth. The type is the following:

Eugivenius cribrosus n. sp.—Oblong, parallel, convex, only feebly shining and
dark piceous-brown in color; beak (o) evenly arcuate, very feebly tapering,
fully as long as the head and prothorax and very densely punctate, with a narrow
smooth median line above; prothorax convex, a third wider than long, widest
behind the middle, the sides arcuate, less so and gradually oblique anteriorly,
the apex fully half as wide as the base; punctures coarse, deep and very close
but not contiguous, without well defined smooth median line; elytra oblong,
parallel and nearly straight at the sides, rapidly very obtuse at apex, between a
fourth and third longer than wide, subequal in width to the prothorax and twice
as long, the large humeral swellings very faint; grooves a third to fourth as wide
as the intervals, feebly catenulate at the bottom, gradually coarser basally but
not at apex; intervals very coarsely, densely and confusedly punctate basally

444 MEMOIRS ON THE COLEOPTERA

and laterally, but elsewhere with very moderate, well separated punctuation;
under surface rather coarsely, densely punctate, the abdomen finely, shallowly
and sparsely so, having a large and very shallow basal impression in the male.
Length 5.0 mm.; width 2.35 mm. Brazil (Santarem). One specimen.

Does not seem to be at all closely related to any other species
known to me at present.

Plasiliopsis n. gen.

This genus differs very much from the preceding in having the
body small in size, convex, narrowed anteriad and obtuse behind,
polished, glabrous and feebly sculptured. Beak rather short, thick,
feebly arcuate, finely, sparsely punctulate, separated by a shallow
reéntrant angle and with decussate mandibles. Antenne near the
lower margin slightly behind the middle, with short scape, the first
funicular joint as long as the next three, the outer joints short and
compact, the club elongate-oval, pubescent, as long as the five
preceding joints and subequally divided by the sutures. Proster-
num with a deep, shining and sharply limited canal and very short,
broadly arcuate, smooth posterior lobe, the coxe moderately
separated. The legs are rather slender, feebly sculptured, with
slightly arcuate tibiz and small slender tarsi, the claws straight
and contiguous. Prothorax conical, not tubulate at apex, the basal
lobe very short and small, broadly sinuato-truncate, the scutellum
close-set, flat, subquadrate and ogivally pointed; elytra with even
‘surface and fine sharp grooves, the pygidium peculiar—small and
short, prominently and transversely ridged just above the middle
and with a medially interrupted transverse impression below the
ridge in the female, but not so short, with evenly and more convex
surface below the transverse angulation in the male. First ventral
suture obliterated medially. The two species are as follows:

Body narrowly ovoidal, convex, polished, glabrous and black throughout; beak
thick, barely as long as the prothorax, the antenne piceous; prothorax
evenly conical, a fourth wider than long, the sides just visibly arcuate, the
truncate apex fully half as wide as the.base, not tubulate; punctures fine and
sparse throughout, becoming obsolete basally; elytra obtusely oval, not
quite a third longer than wide, behind the base evidently wider than the
prothorax, nearly twice as long, the sides but feebly oblique and evenly
arcuate, rather rapidly broadly rounded at apex, the humeral prominences
very feeble and diffuse; striae feebly and remotely punctulate, equally fine
throughout, shallow and about a sixth as wide as the intervals, which are
flat and sparsely, infinitesimally punctulate; pygidium somewhat closely,
strongly punctate; under surface sparsely and moderately, shallowly punc-
tate, the male abdomen feebly impressed toward base along the middle.
Length 2.55-2.65 mm.; width 1.15-1.2 mm. Brazil (Santarem). Five
SPECIMENS. ee Lye Pak ire Bros ee aT A ae Raa eae peg levis n. sp.

Body larger in size and more broadly oval, glabrous, similar in color and lustre;
beak (co) nearly similar, but still thicker and a little more bent basally,

BRAZILIAN BARINZ 445

finely, sparsely punctulate; prothorax nearly similar, but only a fifth wider
than long, similarly sculptured; elytra broadly oval, a fourth longer than
wide, proportioned almost as in the preceding, but still somewhat more
obtuse behind; striz a little coarser and notably deeper, not evidently
punctate, the interstitial punctures similar and subunilinear; pygidium with
the transverse angulation less sharply defined; medio-basal abdominal
impression of the male nearly similar. Length 3.1 mm.; width 1.6 mm.
Brazile(Santarem) = One Specimen-aee) cee eie cs son eles fusiformis n. sp.

The anterior femora are feebly bent distally, and the tibiz are
also very slightly curved. This genus, with the next, seems to
stand distinctly alone, and it is not closely allied to the Pseudo-
barid series.

Plasilia n. gen.

This genus is allied only to the preceding, but the body is shorter,
more narrowly rounded behind, strongly convex and evenly oval,
glabrous throughout. The legs are short and thicker, but the
femora are similarly bent distally. The beak is still shorter, very
thick and wide and feebly arcuate, the antennze somewhat similar,
but with the club thicker, oval, very abrupt and as long as the
preceding six joints, the ashy vestiture erect and bristling, similarly
sparser or partially wanting on the basal segment, its distinct
sutures dividing it subequally. The prosternal impression is shal-
lower and short, the broad and very abbreviated posterior lobe
nearly similar, as are the tarsi and tarsal claws. The prothorax is
more rounded at the sides and very feebly gradually subtubulate at
apex, the basal lobe larger, with relatively smaller, shallow apical
sinuation; the scutellum differs in being obtrapezoidal, free and in
great part occupied by a shallow opaque impression; the elytra
are finely grooved. The pygidium is similarly small and transverse,
but is more densely punctate and is feebly, transversely concave in
the female, the concavity limited beneath by a feeble transverse
ridge. The only known species is the following:

Plasilia latinasus n. sp.—Very evenly fusiform, convex, glabrous and polished,
rufo-testaceous in color throughout; beak (9) only about three-fourths as long
as the prothorax, which is fully a fourth wider than long, the sides broadly,
evenly arcuate to the tubulation, which is much more than half as wide as the
base; punctures very sparse throughout, fine, a little stronger near the sides;
scutellum free, not closely-fitted as in the preceding genus; elytra a fourth longer
than wide, the sides oblique and rather strongly, very evenly arcuate from the
more prominent humeri to the narrowly rounded apex; grooves sharply marked,
not very deep, about a fifth as wide as the intervals, becoming coarse and exarate
at apex, the surface also differing from that of the preceding genus in having the
subapical umbones distinct; intervals with remote and subserial, infinitesimal
punctules; under surface rather coarsely and conspicuously punctate. Length
2.75 mm.; width 1.5 mm. Brazil (Chapada—forest). August. One specimen.

The shorter, thicker legs and still shorter beak, form of scutellum,
narrowly rounded and exarate elytral apices and form of the pygid-

446 MEMOIRS ON THE COLEOPTERA

ium, will easily serve to distinguish this genus from the preceding,
with which, however, it forms a small definite section in the Barini.

Liobaridia n. gen.

The body here is evenly and rather broadly oval, convex, polished,
feebly sculptured and glabrous, the prothorax briefly tubulate at
apex, with large and prominent, narrowly rounded basal lobe, small,
close-set, ogival scutellum, deeply and sharply grooved elytra and
small, subeven and densely sculptured, semicircular pygidium; the
first ventral suture is fine but distinct throughout the width. The
beak is rather long, slender, arcuate, feebly separated from the front
and is swollen above basally, a character often appearing in the
Pseudobarid series. Antenne submedial, slender, with long scape,
the first funicular joint as long as the next three, the club oval,
very abrupt and as long as the four preceding joints, the first and
second segments each nearly two-fifths the mass. The prosternum
is very broadly and deeply canalate, the canal ending abruptly at
the intercoxal suture, the lobe moderate and medially sinuate at
apex; the coxe are separated by fully their own width. The legs
are well developed, normal, with notably long, slender tarsi and
contiguous straight claws. The type is as follows:

Liobaridia rostrata n. sp.—Oval, convex, polished and deep black, completely
glabrous; beak ( @ ) slender, nearly half as long as the body, the antenne slender,
piceous; prothorax a third wider than long, the sides distinctly converging and
virtually straight, gradually moderately rounding beyond the middle, the tubu-
lation more than half as wide as the base; punctures minute and very sparse,
gradually rather strong but sparse laterally; elytra oval, moderately obtuse at
apex, a fourth longer than wide, at the large and feebly tumid humeral swellings
slightly wider than the prothorax, three-fourths longer, feebly umbonate sub-
apically, the surface broadly biundulate at the sides; grooves deep, obscurely
punctulate, a third as wide as the sparsely and infinitesimally punctulate intervals,
coarsely exarate-apically; under surface strongly, sparsely punctate, the abdomen
finely and remotely; tarsi as long as the tibia. Length 4.25 mm.; width 2.0
mm. Brazil (Chapada—forest). May. A single female.

Distinguishable among the other allies of Pseudobaris, by the long
beak, broad deep prosternal canal, abruptly ending at the suture,
and widely separated cox; also by the very feeble sculpture.

Linoma n. gen.

This genus is related rather closely to Heterosternus, but differs
in facies due to the more elongate form, relatively smaller prothorax,
sparse and fine sculpture and very slender beak; the tarsi are short,
with relatively long strigose and basally subconnate claws. The
antenne are inserted slightly (oc) or much (2) behind the middle
of the beak, short, the club small, very short and broad, only

BRAZILIAN BARINA 447

slightly longer than wide, but little longer than the three preceding
joints and abruptly formed. The prosternum is very narrowly and
deeply, evenly sulcate, the concavity gradually obsolete toward the
suture, where the surface becomes anteriorly cuspidate, the cox
remote, separated by much more than their own width, the lobe
prominent but nearly twice as wide as long, unimpressed and feebly,
medially sinuate at apex. The prothorax is gradually tubulate,
the basal lobe rather prominent, rounded, the scutellum flat, semi-
free and somewhat broadly ogival, the elytra finely but sharply,
deeply grooved and the pygidium small, rough and semicircular.
The first ventral suture is wholly wanting medially. The type is as
follows:

Linoma lustrans n. sp.—Elongate, narrowly suboval, convex, polished, glabrous
and deep black; beak (<") slender, moderately arcuate, closely punctured and
as long as the prothorax, or (2) very slender, more arcuate, less sculptured and
as long as the head and prothorax, the latter a fourth wider than long, the sides
subparallel and feebly arcuate, gradually moderately rounded beyond the middle
to the tubulation, which is somewhat more than half as wide as the base; punc-
tures rather small but deep, well separated, a little coarser but only slightly
less sparse laterally, the impunctate median line clearly defined; elytra evenly
oval, a third longer than wide, at the small and slightly tumid humeri fully a
fourth wider than the prothorax, nearly two and one-half times as long; surface
even, not at all undulated, the grooves punctured, the punctures bearing each an
extremely small fine squamule, coarse but not exarate apically, the intervals
between three and four times as wide as the grooves, with single series of remote
and infinitesimal punctules; under surface with moderately coarse, the abdomen
with very fine, sparse punctures, the latter not distinctly impressed at base in
the male. Length 2.65-2.75 mm.; width I.I-I.15 mm. Brazil (Chapada—
forest). June to September. Three specimens.

The evenly parallel form of the very narrow prosternal sulcus,
widely separated coxe and slender beak, with very short antenna]
club, will distinguish this species from any typical Heterosternus.

Linomaspis n. gen.

In this genus, which very well serves to connect the Pseudobarid
series with Ampeloglypter, the body is rather elongate, very obtuse
behind, with narrower subtubulate prothorax, and with sculpture
of the under surface differing very much from that of Heterosternus
and Linoma, the punctures being smaller but very deep and close-
set. The beak is moderately thick, cylindric, closely sculptured,
feebly arcuate and separated by a narrow shallow sulcus. Antenne
submedial, the first funicular joint about as long as the next three,
the club narrow, elongate-oval, longer than the preceding four
joints, with very strong sutures and with the basal segment almost
half the mass. The prosternum is moderately but regularly canal-
ate, the posterior lobe large, not impressed and very densely and

448 MEMOIRS ON THE COLEOPTERA

deeply cribrate, as in many of the Ampeloglypterids, the coxe well
separated. The legs are moderate, the third tarsal joint but feebly
dilated and the claws undoubtedly fused together at base. The
prothorax is long, gradually tubulate at apex and with very small
short basal lobe, which is truncate at apex, the scutellum flat,
closely-fitted, scarcely as wide as long and rounded, and the elytra
with fine grooves, which are only a little coarser or more impressed
at apex. The pygidium is rounded and twice as wide as long, the
first abdominal suture obsolete medially. The only species known
to me is the following:

Linomaspis picea n. sp.—Subventricose, convex, moderately shining and piceo-
rufous throughout, glabrous; beak (o”) nearly as long as the head and prothorax,
the latter very nearly as long as wide, the sides feebly converging and almost
straight, rapidly becoming oblique in apical two-fifths to the tubulation, which
is much more than half as wide as the base; punctures rather small but perforate,
separated by nearly twice their diameters and subsimilar in size and separation
throughout the pronotum, but with a distinct smooth median line; elytra oblong-
oval, between a fourth and third longer than wide, with only very feebly oblique
and slightly arcuate sides and rapidly broadly obtuse apex, the humeri small
and feeble, fully a fourth wider than the prothorax and much more than twice as
long; grooves fine, feebly punctulate, gradually coarser basally, the intervals
with single series of moderately distant infinitesimal punctules; under surface
with rather close, moderate, deeply perforate punctures, very dense toward the
sides of the abdomen posteriorly; male with a small but deep and simple impres-
sion at the middle of the abdomen toward base. Length 2.9 mm.; width 1.25
mm. Brazil (Chapada—forest). September. A single specimen.

The very obtuse elytra and correspondingly obtuse abdomen, and
the peculiar punctures—small in size but deep, perforate and con-
spicuous, are additional tokens of affinity with Ampeloglypter.

Anagivenius n. gen.

In some respects this genus might be regarded as related to
Eugivenius, but in general structure it is very different. The body
is rather stout, convex and more or less densely and very strongly
punctate and glabrous. Beak short, rather finely, densely punctate,
smoother distally. Antennz medial or post-medial, short, the first
funicular joint in the type nearly as long as the next three, 2-7
transverse and compact, gradually increasing, the club oval, as long
as the six preceding joints, with its first segment nearly half the
mass. Prosternum broadly canalate, the canal rather shallow but
sharply limited and having, at its anterior end, a small deep fovea
at each side, homologous in this respect with Glyptobaris, the coxe
separated by nearly their own width, the posterior lobe short and
broadly arcuate. Prothorax very briefly tubulate, the basal lobe
short, gradual and obtuse. Scutellum free, subquadrate, impressed
and finely sculptured, except narrowly at the sides, the elytra

BRAZILIAN BARIN 449

strongly and abruptly grooved. Pygidium very moderate, nearly
flat and semicircular. Legs rather short, all the tibia sharply and
prominently angulate externally near base, the claws closely con-
tiguous. The two known species are as follows:

Form oblong-oval, moderately convex, feebly shining, black throughout, the legs
piceous; beak (@) short, rather thick, cylindric, abruptly bent but not
tumid at base, separated by a moderately deep impression and four-fifths as
long as the prothorax, the antenne medial and black; prothorax fully two-
fifths wider than long, the sides subparallel and feebly arcuate, rapidly and
evenly rounded in about apical third, to the very short tubulation, which is
half as wide as the base; punctures coarse, deep and dense, gradually a little
less coarse and slightly separated medially, without trace of smooth median
line; elytra very obtusely oval, a fourth longer than wide, slightly wider
than the prothorax and twice as long, the humeral swellings scarcely at all
apparent; grooves laterally, basally and apically very coarse and punctate,
elsewhere less coarse; intervals as wide as the grooves laterally, but nearly
three times as wide as the latter suturally, coarsely, subtransversely and very
closely punctured in single line; under surface coarsely, closely punctate,
the abdomen finely and sparsely, but less finely though densely along base,
apex and sides. Length 3.5 mm.; width 1.75 mm. Brazil (Santarem).
RO Tem sine CNA IEE rere Ss Sa Shards aoerat euepcinhs aie: 9 susie epee ebeveae % <6 tibialis n. sp.

Form short, rather more narrowed anteriorly, oblong-ovoidal, convex, feebly
shining, deep black, the legs piceous-black; beak (2) very different, more
slender, rapidly inflated, compressed and densely punctate basally and as
long as the prothorax, the antennz near basal third; head extremely densely
punctate like the basal part of the beak; prothorax barely a fourth wider
than long, the sides converging and feebly arcuate, gradually a little more
so anteriorly, the more feeble tubulation less than half as wide as the base;
punctures coarse, very deep and extremely dense throughout, without trace
of median smooth line; elytra oblong, only a fifth longer than wide, the sides
parallel and feebly arcuate, broadly and subcircularly rounded in about
apical half, nearly a third wider than the prothorax and three-fourths longer;
grooves very coarse, deep and punctate laterally and basally, elsewhere less
coarse but still very conspicuous; intervals about as wide as the grooves
laterally, between two and three times as wide as the latter suturally, rather
coarsely, densely and confusedly punctate throughout; under surface some-
what coarsely, closely punctate, the abdomen closely, more finely but deeply
and conspicuously so throughout; legs densely, discretely punctate. Length
2.8 mm.; width 1.6 mm. Brazil (Santarem). One specimen.

subpyriformis n. sp.

These species can be identified at once by the coarse, dense
sculpture, coarsely grooved elytra, dentate tibize and other features.
They somewhat resemble Baris and Eugivenius in habitus.

Prantisus n. gen.

This genus is one of the most remarkable of the present series in
its very coarse sculpture and extremely short beak. The body is
broadly, evenly oval and strongly convex, glabrous, excepting a
minute slender squamule within each puncture, a little longer and

T. Casey, Mem: Gol. X, Oct. 1922:

450 MEMOIRS ON THE COLEOPTERA

remote in single lines on the elytra. Beak arcuate above and be-
neath, separated by an impressed sulcus. Antennz medial, short,
the scrobes extremely oblique, the scape short, not longer than the
club, the first funicular joint slightly elongate, the others transverse,
compact and gradually increasing, the club as long as the five
preceding joints, thick, oval, with its basal segment nearly half the
mass, glabrous and shining. The prosternal channel is broad and
extremely shallow, although sharply limited at the sides, without
trace of foveee at its anterior end, the posterior lobe moderate and
feebly sinuate medially at apex; coxe separated by two-thirds
their width. The prothorax is not tubulate at apex, the basal lobe
broad and gradual, obtusely rounded, the scutellum transverse,
somewhat punctate, not impressed and only slightly free, the elytra
coarsely, deeply grooved and the pygidium small and semicircular.
The legs are moderate and simple, the tarsi slender and the claws
closely connate and feebly strigilate. The type is the following:

Prantisus ovirostris n. sp.—Evenly oval and feebly shining, deep black through-
out; beak but little over twice as long as wide and barely more than half as long
as the prothorax, evenly oval in lateral profile, finely, not densely, subrugosely
punctate, the antenne obscure rufous; prothorax a third wider than long, the
sides converging and feebly arcuate, more rounding beyond about the middle;
apex less than half as wide as the base; punctures very close but not crowded,
very coarse and less coarse intermingled, with a narrow subprominent smooth
line abbreviated anteriad; elytra oval, rather more than a fourth longer than
wide, a fourth or fifth wider than the prothorax and three-fourths longer; surface
sloping slightly to the base throughout the width from the line joining the feeble
humeral prominences; grooves coarse, very deep, punctured along the bottom,
equal in coarseness throughout the width; intervals not twice as wide as the
grooves, with single series of very coarse, rather close-set punctures, the smooth
edges in slight relief; under surface very coarsely, closely punctate, the abdomen
more finely and loosely, the first suture fine but evident throughout. Length
3.5 mm.; width 2.2 mm. Brazil (Santarem). One female specimen.

The stout oval form, very coarse close sculpture, remarkably
short beak and polished glabrous basal segment of the antennal
club, will render the identification of. this species very easy.

Heterosternus Kirsch

This is the characteristic Brazilian genus of the Pseudobarid
series, and it extends well into the Central American region. The
species are very numerous and are much smaller on the average
than those of Pseudobaris, but are similar in that respect to several
of the subgenera of the latter, as previously defined under Craptus;
they are oval to cylindric in form and always rather closely and
strongly, sometimes extremely densely, punctate. The beak varies
from rather short and moderately thick to longer and slender,
especially in the female; the antenne are moderate and with oval

BRAZILIAN BARINE 451

pubescent club. The prothorax is never more than feebly tubulate
at apex, and the scutellum varies from minute and rounded to
transversely quadrate in form; the elytra are moderately grooved,
individually rounded at apex, and the pygidium is small and semi-
circular, the tarsi small and slender, with the claws contiguous at
base and generally feebly but sometimes quite notably diverging.
The material at hand may be classified and described as follows:

Posterior lobe of the prosternum deeply channeled, sometimes affording shelter
for the tip of the beak, sinuate or deeply emarginate behind, extending to the

middle coxz and covering the entire mesosternum...................... 2
Posterior lobe flat, feebly channeled in tenutrostris.........00 0000 cc cece eee ee 8
2—Body narrowly oval, the pronotum very coarsely punctate................ 3

Body more broadly oval, the pronotum less coarsely punctate, though still very
conspicuously, the beak usually a little thicker in both sexes; posterior
angles of the prosternal lobe much produced, but obtusely rounded at tip..6

3-—P osteron angles. of the prosternal lobe acute... ..4.....0. 050002 ed cs 4
RGstenom iiplectpeoOrGhy LOUNGE «a ..f.) ais sce cea bc We wlek vu wmc tie Pluss a 5

4—Form narrowly oval, convex, shining, deep black and glabrous, the punctures
of the under surface each with a minute slender squamule as usual; beak
(2) short, barely as long as the prothorax, straight, moderately slender and
sculptured, slightly inflated and curved at base; antenne slightly behind
the middle; prothorax a fifth wider than long, the sides somewhat converging
and nearly straight, rapidly rounding and oblique in apical two-fifths, the
truncate apex fully half as wide as the base; very coarse deep punctures
separated medially by barely half their diameters, but contiguous laterally,
without smooth median line; scutellum close-set, minute and rounded;
elytra two-fifths longer than wide, slightly wider than the prothorax and
not quite twice as long, evenly rounded behind, the sides sensibly oblique
and feebly arcuate; grooves deep, punctured, half as wide as the intervals,
which are minutely, linearly punctulate; pygidium strongly convex, closely
punctate; abdomen loosely and moderately punctate, the sterna coarsely
and more closely. Length 2.7 mm.; width1.2 mm. _ Brazil (Rio de Janeiro).
Novenher ge OMe: SPECIE... 5. a: 2 jaye a aoe Sieweld ck pea elelete cribricollis n. sp.
Form less narrowly ovoidal, deep black, rather shining, but with the interstices
faintly alutaceous and micro-reticulate; beak ( 2 ) somewhat slender, feebly
arcuate, shining and as long as the head and prothorax, gradually rugose
basally and not inflated, though slightly more bent, at base; antenne
somewhat behind the middle; prothorax a fourth wider than long, the sides
parallel and nearly straight, rounding and oblique in apical two-fifths;
punctures very coarse, separated by nearly half their diameters medially,
contiguous laterally, without smooth median line; scutellum larger than in
the preceding and freer, with some punctures; elytra more evenly oval, the
arcuate sides merging more gradually into the rather broadly rounded apex,
three-sevenths longer than wide, a fifth wider than the prothorax and twice
as long; grooves half as wide as the minutely, uniserially punctate intervals
and distinctly, catenulately punctate along the bottom; pygidium convex,
loosely cribrate; abdomen much more strongly and closely punctate than in
the preceding. Length 3.0mm.; width 1.23mm. Brazil (Chapada—forest).
November. One specimen. Another specimen from the same locality is
very similar, but a little smaller and with the coarse thoracic punctures
contiguous or virtually so throughout; as the beak is a little shorter and the
antenne submedial, it may be the male, but there are no abdominal modi-
LTCSBLUIBTOSE SE Doge ELS G 2 te cea el a TU nevina Tenure, oa ee vafer n. sp.

452

MEMOIRS ON THE COLEOPTERA

Form moderately elongate, evenly oval, strongly convex, shining and black;

beak (@) peculiar, very slender and smooth, feebly arcuate and rather
longer than the head and prothorax, with a deep groove along the sides
from the antenne to apical fifth, the basal part rapidly much swollen, com-

’ pressed and strongly, closely punctate; antennz near basal fourth, the

scape very short, not as long as the club, the first funicular joint as long as
the next three; prothorax between a fourth and third wider than long, the
sides feebly converging and nearly straight, gradually rounding and oblique
in apical two-fifths; punctures very coarse and finely separated laterally,
not so coarse and separated by more than their own diameters medially,
without trace of smooth line; basal lobe narrowly subtruncate, the scutellum
unusually minute, rounded; elytra evenly oval, a fourth longer than wide,
slightly wider than the prothorax and twice as long; grooves half as wide as
the intervals, coarser and crenulately punctate basally, the single interstitial
series composed of fine but evident punctures; pygidium densely punctate,
raised along the median line; abdomen strongly but rather sparsely punctate.
Length 2.65 mm.; width 1.25 mm. Brazil (Chapada—forest). October.
One Specimen. cite eee eras oaisds Oe ee ee ee unicus n. sp.

5—Body evenly oval, strongly convex, deep black and shining throughout; beak

(2) very slender and smooth, scarcely arcuate and a little longer than the
prothorax, moderately swollen, compressed, closely punctate and dorsally
arcuate at base; antenne at basal third, the scape short; prothorax a fourth
wider than long, the sides slightly converging and nearly straight, rapidly
rounding and oblique in apical third; basal lobe narrowly rounded at tip;
punctures coarse, dense, distinctly separated and in part finer medially, with
a feebly marked partial median smoother line; scutellum small, ogival,
slightly impressed and punctate; elytra oval, not very obtuse at tip, two-
fifths longer than wide, only just visibly wider than the prothorax and about
twice as long; grooves scarcely half as wide as the finely, uniserially punctu-
late intervals, but gradually coarser and closely, crenately punctulate basally;
pygidium evenly convex; abdomen sparsely punctate; tarsal claws divergent.
Length 2.8 mm.; width 1.15 mm. Brazil (Santarem). One specimen.
puncticollis n. sp.

Body still more narrowly oval, convex, black and polished, the legs somewhat

piceous; beak ( @ ) short and not very slender, about as long as the prothorax,
rather shining, almost straight, feebly bent but not swollen at base; antennze
very short, at two-fifths, the scape slightly longer than the club, which is
very moderate, oval, with its basal segment nearly half the mass and sub-
glabrous, though not shining; prothorax almost as long as wide, the sides
converging and straight, abruptly rounded and oblique in scarcely more
than apical fourth; basal lobe somewhat prominent but obtusely rounded;
punctures very coarse and subcontiguous laterally, separated by half their
widths medially and anteriorly less coarse, and with a short smooth line be-
hind the middle; scutellum small, ogival; elytra evenly, more obtusely oval,
between a fourth and third longer than wide, slightly wider than the pro-
thorax and three-fourths longer; grooves half as wide as the intervals, less
internally as usual, coarser and subexarate distally, much coarser and more
punctate gradually toward base, the interstitial punctures infinitesimal and
distant in single lines; pygidium strongly convex; abdomen finely, sparsely
punctate, rather coarsely toward the sides. Length 2.6 mm.; width 1.0 mm.
Brazil (Chapada—forest). November. One specimen....... trivialis n. sp.

6—Prosternal lobe deeply canalate and closely, strongly punctate; beak very

slender. Body evenly oval, convex, shining, black throughout; beak (@) -
very slender, smooth, moderately but evenly arcuate and about as long as
the head and prothorax, gradually moderately thickened, strongly punctate
and dorsally somewhat arcuate basally; antennz at basal third, piceous,

BRAZILIAN BARIN 453

the scape slightly longer than the club, which is normal, evenly oval and
subequally divided by the sutures, feebly fusco-pubescent; prothorax a
fourth wider than long, the sides feebly convergent and very slightly arcuate,
gradually more rounding in apical third; basal lobe obtusely rounded;
punctures coarse, subrugosely close laterally, gradually smaller and separated
by fully their own diameters medially, where they are normally coarse basally
as usual; median smooth line not evident; scutellum small, rounded and
feebly impressed; elytra with moderately oblique and slightly arcuate sides,
rather rapidly obtusely rounded at apex, a third longer than wide, evidently
wider than the prothorax and nearly three-fourths longer; grooves deep,
abrupt and subequal throughout, punctulate and more than half as wide as
the intervals, which are sparsely and scarcely visibly, infinitesimally punctu-
late; pygidium broadly, longitudinally tumid; tarsal claws slender, diver-
gent. Length 3.2-3.45 mm.; width 1.3-1.5mm. Brazil (Chapada—forest).

March and November. Two specimens...............:..-lyratulus n. sp.
Prosternal lobe more finely and evidently more sparsely punctate, shining and not
SOMGEe SME OMe ay Cree Stns ols ole c ofay sie ispal'e eis ete gfe OLN ial» shag etel m ian eys 7

7—Body evenly oval, convex, shining and black; beak (<) rather thick and
short, evenly and moderately cylindric and arcuate, moderately closely
punctate, somewhat more strongly gradually toward base, shorter than the
prothorax, or (@) as long as the head and prothorax, otherwise nearly as in
the male; antenne medial (<7), slightly post-medial (9), the club oval,
normal; prothorax larger, a fourth wider than long, the sides subparallel
and barely arcuate, broadly rounding and oblique in about apical third;
apex rather more than half as wide as the base; basal lobe gradual, narrowly .
rounded at tip; punctures coarse and narrowly separated laterally, much
smaller and separated by twice their widths medially throughout the length,
with a very feebly defined subimpunctate median line; scutellum small,
flat, scarcely as wide as long, close-set and ogival, the elytra evenly oval, a
fourth longer than wide, very slightly wider than the prothorax and barely
three-fifths longer; grooves rather coarse, deep, exarate distally; punctures
of the regular interstitial series very minute; pygidium evenly convex (<),
smaller (@); abdomen rather closely punctate at base, apex and sides,.
without trace of basal impression in the male type; prosternum with a
somewhat deep apical sinus as usual. Length 2.65 mm.; width 1.25 mm.
Brazil (Chapada). May and January. ‘Two specimens.....veridicus n. sp.
Body nearly as in the preceding but subeneous; beak (@) shorter, not as long
as the prothorax, moderately thick, not swollen basally, evenly and moder-
ately arcuate, feebly tapering and almost smooth distally, gradually closely
punctured basally, shorter than the prothorax; antenne piceous, barely
visibly behind the middle; prothorax a fifth wider than long, the feebly
converging sides gradually more rounding toward apex, the latter distinctly
more than half as wide as the base; punctures deep, rather coarse, dense
laterally, even in size medially, a little less coarse and separated by more
than twice their diameters in basal, and much less in apical, half, without
smooth median line; scutellum very small, rounded, close-set; elytra evenly
oval, a fourth longer than wide, only slightly wider than the prothorax and
three-fifths longer; grooves nearly as in the preceding, except that the first
does not approach the base so closely; they are coarsely exarate distally;
pygidium very small, abruptly and narrowly tumid along the median line.
Length 2.65 mm.; width 1.2 mm. Brazil (Chapada—forest). November.
Oneyspecini emer ee eh ie ote ya eects alah eae ald pes tersus n. sp.
Body larger and stouter than in the two preceding, shining and deep black,
suboblong-oval, convex; beak (<) thick, feebly and evenly arcuate, rather
closely punctate and as long as the head and prothorax, the antennz barely

454 MEMOIRS ON THE COLEOPTERA

visibly behind the middle; prothorax large, a fourth wider than long, the
sides feebly converging and subevenly, moderately arcuate almost through-
out, rapidly converging at the extreme apex to a much more pronounced
tubulation than in either of the preceding, and half as wide as the base, the
basal lobe similarly slightly prominent and rounded; punctures as in fersus;
scutellum similar; elytra evenly but more broadly oval, slightly wider than
the prothorax and but little over one-half longer; grooves coarser, similarly
strongly exarate distally, the first not approaching the base so closely as
in veridicus; interstitial series composed of similarly minute punctules;
pygidium larger than in tersus, subevenly and strongly convex. Length
2.8 mm.; width 1.45 mm. Brazil. A single example, received from Des-

brochers des Loges without further indication of locality......relictus n. sp.
8=Body more or less evenly oval in outlines] Jo... 22 2y es . Sei eee 2 eee 9
Body rectilinearly parallel, small in size and rather slender................. 23
g—Prosternum with a more or less evident angular medial projection from the
intercoxal suture, bifurcating the canal as usual in the genus............ 10

Prosternum with the bifurcating prominence wholly obsolete, the bottom of the
canal sloping upward to the line of the intercoxal suture, the canal, however,

Olssimilarmedially, constricted shapes assert incn Caer erent 18
10—Pronotal punctures often close-set but always clearly separated......... II
Pronotal punctures extremely dense, not clearly separated................-. 7
11—Punctures of the interstitial series extremely minute, as in the preceding

section; basal thoracic lobe narrowly truncate at tips... +4224. 4e eee ee 12
Punctures of the interstitial series much stronger, always distinct and sometimes

notably coarse; scutellum generally somewhat free................-4.. 13

12—Body evenly oval, strongly convex, deep black, glabrous above, excepting a
minute fine squamule in each puncture along the bottom of the elytral grooves;
beak (@) very slender, moderately and evenly arcuate, finely punctulate,
coarsely so basally, feebly swollen above at base and as long as the head
and prothorax; antenne rufo-piceous, slightly behind the middle; prothorax
a fifth wider than long, the sides converging, evenly and distinctly arcuate
from base to the truncate apex, which is scarcely half as wide as the base;
punctures deep, rather coarse, close but not quite in contact laterally, not
quite so coarse and separated by their own diameters medially, without
smooth median line; scutellum minute, very free and subpentagonal; elytra
oval, rather obtuse at tip, only slightly wider than the prothorax and three-
fifths longer; grooves moderate, only a little coarser apically, gradually
coarser and coarsely punctate basally, the first approaching the base rather
closely; pygidium very small, convex; sterna coarsely punctate, the abdomen
more finely and sparsely; prosternal lobe deeply sinuate at tip between
sharp but not prominent angles, the surface broadly, shallowly impressed
along the middle. Length 2.35 mm.; width 0.9 mm. Brazil (Uscarizal).
Hebruanry.. Onelspecimen!= .\2 os. <class ome Oe ee tenuirostris n. sp.

Body evenly oval, convex, shining, subzneous-black, glabrous; beak (o") moder-
ately thick, feebly, evenly arcuate, finely, sparsely punctate and as long as
the prothorax, the antenne black and medial; prothorax a fourth wider
than long, the sides just visibly converging and nearly straight, rounding in
apical third to a very feeble sinuation, the apex faintly subtubulate and
fully half as wide as the base; punctures coarse, deep and subcontiguous
laterally, only half as large and separated by more than their diameters
medially, without smooth median line; scutellum small, free, shining and
transversely oval; elytra oval, rather narrowly rounded behind, a fourth
longer than wide, evidently wider than the prothorax and three-fifths longer;
grooves moderate, coarsely exarate distally, the rather strong punctures
crenulating the intervals on their outer sides; pygidium moderate, semi-

BRAZILIAN BARIN4E 455

circular, not very convex, even and densely punctured; posterior prosternal
lobe flat, loosely and strongly punctate, broadly sinuate at apex. Length
2.4mm.; width 1.12 mm. Brazil (Santarem). One specimen.
vapidus n. sp.
13—Prothorax distinctly and rather sharply tubulate at apex; body compara-
tively large in size. Form suboblong-oval, convex, rather shining and deep
black throughout; elytra with series of minute squamules; beak (c”) moder-
ate in thickness, feebly and evenly arcuate, three-fourths as long as the
prothorax, strongly, loosely punctate and not at all swollen dorsally at base;
antenne black, slightly beyond the middle, the basal segment of the club
subglabrous; prothorax a fifth wider than long, the sides subparallel, feebly
arcuate, rapidly rounding in apical third to the tubulation, which is fully
half as wide as the base; basal lobe gradual, the tip narrowly rounded; punc-
tures rather coarse, deep, close, not so coarse and more separated medially,
sometimes with a distinct median smooth line; scutellum free, well developed
and transverse; elytra obtusely oval, with rather evident humeral swellings,
evidently wider than the prothorax and two-thirds longer; grooves somewhat
coarse, punctured, exarate distally; intervals alutaceous, strongly, rather
closely and uniseriately punctate, twice as wide as the grooves; pygidium
small, semicircular, moderately and evenly convex; bifurcating prominence
of the prosternum scarcely elevated but polished, contrasting with the
subopaque canal; posterior lobe broadly truncate. Length 3.0-3.2 mm.;
width 1.4-1.45 mm. Brazil (Chapada—forest). March and November.
Three specimens, apparently all males...................--- valens n. sp.
Prothorax not definitely tubulate at apex; body much smaller in size........14

14—Basal thoracic lobe narrowly truncate at apex. Form rather narrowly oval,
convex, black, the tarsi piceous, somewhat shining, the elytra alutaceous;
beak (<”) short, rather thick, even in diameter, very feebly arcuate, strongly,
loosely punctate, not swollen above at base and barely more than two-thirds
as long as the prothorax; antennz obscure rufous, slightly beyond the middle;
prothorax a fourth wider than long, the sides feebly converging and slightly
arcuate, gradually rounding and oblique in apical two-fifths; apex feebly
constricted dorsally, half as wide as the base; punctures moderately coarse,
deep, very close throughout, only slightly separated medially, without smooth
line, the scutellum free, smooth, shining and subtransversely oval; elytra
evenly oval, a third longer than wide, slightly wider than the prothorax and
four-fifths longer; grooves moderate, only a little coarser distally, feebly
punctate; intervals dull, with single series of rather coarse but very shallow,
moderately distant punctures; pygidium small, normal, evenly and some-
what strongly convex; bifurcating process of the prosternum low but more
shining, the flat posterior lobe broadly sinuato-truncate; abdomen as usual,
without sexual marks. Length 2.28 mm.; width 0.8 mm. Brazil (Chapada).
May. One specimen, on flowers in forest clearings........... sodalis n. sp.
Basallttuoracic loperounded at tipi: . vic. c ek 5 iain eae eee rab es oe ses eee 15

15—Upper surface strongly micro-reticulate and almost opaque throughout.
Body rather broadly oval, convex; beak (c) very short, moderately thick,
even in diameter, not swollen basally above, moderately punctate, evenly
and feebly arcuate and three-fourths as long as the prothorax; antenne
slightly beyond the middle; prothorax rather large, a fourth wider than
long, the sides slightly converging and feebly, subevenly arcuate, only very
little more so anteriorly; apex rather more than half as wide as the base;
punctures smaller than usual, close, becoming evidently separated medially,
without impunctate line; scutellum somewhat free, subtransversely oval,
partially sculptured; elytra evenly and obtusely oval, a fifth longer than

456

MEMOIRS ON THE COLEOPTERA

wide, only slightly wider than the prothorax and three-fifths longer; grooves
moderate, scarcely at all coarser distally and only slightly so basally, ob-
scurely punctate; intervals with the uniserial punctures shallow and not
notably coarse; pygidium dense, small, semicircular and moderately con-
vex; bifurcating projection of the prosternum in low relief, the posterior
lobe broadly sinuato-truncate. Length 2.5 mm.; width 1.2 mm. Brazil
(Chapada—forest). November. One specimen.............. habilis n. sp.

Upper surface partly subopaque, with the pronotum moderately shining, the

elytra throughout very dull. Body as large as in valens and somewhat more
elongate, oval, deep black throughout; beak (<”) short, thick, feebly arcuate
and not quite three-fourths as long as the prothorax, even in thickness and
strongly punctured, or ( @ ) longer, four-fifths as long as the prothorax, evenly
and more strongly arcuate, very slender and smooth, abruptly thick and
strongly punctured in basal two-fifths; antenne at two-fifths ( @ ), or slightly
beyond the middle (o); prothorax a fifth wider than long, the feebly con-
verging sides almost straight, rapidly rounding and oblique in apical third,
the apex not evidently tubulate; basal lobe narrowly rounded at apex;
punctures moderately coarse and dense throughout, very narrowly separated
medially, sometimes with a feeble smooth line behind the middle; scutellum
well developed, transversely subquadrate; elytra oval, a fourth to third
longer than wide, evidently wider than the prothorax and three-fourths
longer; grooves coarse and abrupt, gradually somewhat exarate distally;
intervals nearly twice as wide as the grooves, densely subopaque and with
single series of rather large but obscure, close-set punctures; bifurcating
projection of the prosternum rather long but in very low relief, the posterior
lobe truncate. Length 3.2-3.4 mm.; width 1.35-1.5 mm. _ Brazil (Chapada
—campo). October and November. Five specimens... ...alutaceus n. sp.

Upper surface feebly micro-reticulate and somewhat shining; form less broadly

Ce A oe Pe A pe a Peer PS PTE Se ORs) aA ee isi a dhol id 16

16—Body oval, convex, deep black throughout; beak (co) short, three-fourths

as long as the prothorax, moderately slender and even in thickness and
curvature, rather closely punctate, or (@) nearly similar but a trifle longer;
antenne short, the club rather broadly oval; prothorax a fifth wider than
long, the sides feebly converging and scarcely arcuate, gradually broadly
rounding anteriad; apex half as wide as the base; punctures moderate,
subcontiguous laterally, moderately separated and not quite so large medially,
without smooth line; scutellum small, free, rounded; elytra evenly oval, a
fourth longer than wide, slightly wider than the prothorax and two-thirds
longer; grooves moderate, crenulately punctate basally, not much coarser
but with the surface more opaque distally; intervals with rather strong and
close-set punctures in single series, but sometimes smaller and more confused
on the second or third basally; pygidium small, not very convex; bifurcating
prominence of the prosternum in high relief and conspicuous, the posterior
lobe broadly sinuato-truncate. Length 2.5 mm.; width 1.1-1.12 mm.
Brazil (Chapada). September and October. Two specimens...sospes n. sp.

Body somewhat more briefly oval and with larger prothorax, convex, deep black;

beak (<) nearly similar, rugosely and densely punctate, smoother apically,
a little more arcuate and four-fifths as long as the prothorax; antenne
evidently beyond the middle; prothorax a fifth wider than long, in outline
and sculpture nearly as in the preceding, the punctures just visibly coarser;
scutellum somewhat larger, not quite so free, transversely oval and with
several punctures; elytra nearly as in the preceding in outline and sculpture,
but rather more obtusely oval, only about one-half longer than the prothorax,
all the intervals with single series of somewhat coarse punctures; pygidium

BRAZILIAN BARINZE 457

nearly similar but somewhat larger; prosternal canal highly polished and
subimpunctate, not alutaceous and finely micro-reticulate as in sospes, and
with the posterior bifurcating prominence in high relief, but less abrupt, the
posterior lobe rather strongly sinuate at apex, with sharply marked angles.
Length 2.4 mm.; width 1.15 mm. Brazil (Chapada). September. One
SPECHMENANNER Py Her ee atte oats fut nipslete kis he diatdeens cribrum n. sp.
Body oval, convex, much smaller in size, deep black throughout, the elytra
opaculate posteriorly; beak (co) rather thick, distinctly arcuate, less than
four times as long as wide in lateral profile, punctate and three-fourths as
long as the prothorax; antenne distinctly beyond the middle; prothorax
only a fifth or sixth wider than long, the sides converging and distinctly,
subevenly arcuate throughout; apex four-sevenths as wide as the base;
punctures strong but only moderately coarse, close at the sides, but separated
by their own widths medially, without median smooth line; scutellum very
small, circular; elytra obtusely oval, only a fifth longer than wide, slightly
wider than the prothorax and barely over one-half longer; grooves unusually
narrow; punctures of the interstitial series moderate, the surface sericeous;
pygidium moderate; prosternal channel smaller, narrower and shallower
than in either of the preceding, dull in lustre, the bifurcating prominence
obtuse but in rather high relief, the posterior lobe broadly truncate. Length
1.85 mm.; widtho.8 mm. Brazil (Chapada—forest). August. One speci-
TOME MB e, 5 Seg Gib oboe el geceeie oa ONCE le ec ener nye ener ic ovulum n. sp.
17—Form oval, integuments dull from density of sculpture, black; beak (?)
rather thick, densely punctate, distinctly and evenly arcuate and even in
thickness throughout, scarcely three-fourths as long as the prothorax, or (07)
very nearly similar but a little shorter; antenne (2) medial, or (c’) beyond
the middle, the club very short, thick and abrupt, with the basal segment
partially polished and glabrous; prothorax very nearly as long as wide,
the sides moderately converging, evenly and evidently arcuate throughout;
apex half as wide as the base; punctures moderate, densely crowded and
without trace of smooth median line; basal lobe narrowly rounded at tip;
scutellum free, shining, transversely oval; elytra oval, not very obtuse
behind, a fifth longer than wide, distinctly wider than the prothorax and
barely one-half longer; grooves coarse, not very different at the ends; inter-
vals only one-half wider than the grooves and with single series of coarse,
nearly contiguous punctures; pygidium small, semicircular and nearly flat;
entire under surface with moderate but extremely dense and crowded punc-
tures; bifurcating prominence of the prosternum in very high relief, the
large posterior lobe sinuato-truncate. Length 2.0-2.45 mm.; width 0.85-
1.2mm. Brazil (Chapada—campo). May and October. Five specimens.
densissimus n. sp.

18—Pronotal punctures fine and sparse, a little larger and not so sparse at the
sides, without trace of median smooth line; upper surface eneous and shining.
Body evenly and narrowly suboblong-oval, convex, shining, much more
feebly sculptured than usual; beak (2) moderately slender, even in thick-
ness, distinctly and evenly arcuate, finely, sparsely punctate and as long as
the head and prothorax; antenne medial, the club small, oval; prothorax
a fifth wider than long, feebly constricted laterad at apex and very feebly
subtubulate, the sides slightly converging and distinctly and very evenly
arcuate throughout; basal lobe narrowly rounded at tip; scutellum small,
free and rounded; elytra obtusely oval, a third longer than wide, slightly
wider than the prothorax and not quite twice as long; grooves fine, gradually
coarse and punctate basally, slightly coarser but not exarate distally; inter-
vals shining, with single series of remote infinitesimal punctures; pygidium
very small and nearly flat; under surface sparsely punctate. Length 2.45
mm.; width 1.0mm. Brazil (Santarem). One specimen....serenus n. sp.

458 MEMOIRS ON THE COLEOPTERA

Pronotal punctures relatively rather coarse and very close, dense laterally, without
definite smooth median line. Body very small, narrowly oval, convex,
deep black and slightly shining; beak (co) moderately slender, equal, feebly,
evenly arcuate, strongly, closely punctate and three-fourths as long as the
prothorax; antenne moderate, with thick, oval and very abrupt club;
prothorax very nearly as long as wide, the sides feebly converging and very
slightly arcuate, gradually more rounding and oblique anteriad; apex more
than half as wide as the base, the basal lobe obtusely angulate; scutellum
well developed, free and transversely oval; elytra evenly and not obtusely
oval, over a fourth longer than wide, evidently wider than the prothorax
and three-fourths longer; grooves moderate, gradually finer from base to
apex; intervals with irregular-series of fine but distinct, well separated
punctures; pygidium as usual in the genus, semicircular and strongly, evenly
convex; prosternal impression flat and gradually ascending posteriorly,
without trace of bifurcating prominence, but constricted medially as usual,
the lobe broadly truncate. Length 1.8 mm.; width 0.75 mm. Brazil

(Chapada—forest). November. One specimen........... restrictus n. sp.
Pronotal punctures very moderate to small in size, always distinctly separated,
at least medio-basally, the color deep black throughout................ 19

19—Form very elongate-oval, the elytra almost one-half longer than wide; beak
not separated from the head by an impression. Deep black, convex and
shining; beak (@) slender, evenly and moderately arcuate, only feebly,
gradually thickened and strongly punctured basally and as long as the head
and prothorax; antenne at two-fifths, the scape notably short; prothorax
but very little wider than long, the sides feebly converging and slightly
arcuate, rather rapidly oblique apically, the apex almost two-thirds as wide
as the base; punctures very moderate but deep, dense laterally, separated
by their own diameter medially, the smooth line not evident; scutellum
moderate, flat and rounded; elytra elongate-oval, very slightly wider than
the prothorax and three-fourths longer; grooves very moderate, only slightly
coarser distally, remotely punctate; intervals with single series of very small
but distinct, well separated punctures; pygidium moderate, strongly convex;
prosternal lobe medially sinuate at apex; coarse and close sternal punctures
each with a distinct slender squamule. Length 2.23 mm.; width 0.8 mm.

Brazil (Chapada—camipo). October. One specimen... ..angustulus n. sp.
Form more broadly oval as usual, convex, the elytra much shorter; beak sepa-
rated by an evident though shallow reéntrant angle.................... 20
20-—size moderate for the present genitis.. 4.5 saci ae ee ee 21
SIZE UMMA Gee So inee pede 2 ahsiackiS etary © QA Rae een Te ieee chee eee 22

21—Form evenly oval, convex, strongly shining, the pronotum rather less so
than the elytra; beak (<”) short, closely, strongly punctate, feebly arcuate
and three-fourths as long as the prothorax, or (?) a little longer, slightly
more arcuate and less thick, much more finely, sparsely punctate, even
throughout in both sexes; antennze submedial in both; prothorax (<)
barely wider than long, more evidently (2), the sides feebly converging
and very slightly arcuate to the short and feeble apical obliquity; apex
much more than half as wide as the base; punctures moderate, dense and
coarser laterally, notably small and separated by nearly twice their diameters
medially, with an evident and almost even subentire median smooth line;
scutellum small, free and transversely oval; elytra a third to fourth longer
than wide, oval, slightly wider than the prothorax and only three-fifths
longer; grooves rather fine, deep, slightly coarser at apex, scarcely at all
punctate; intervals with single series of very small and widely separated
punctures; pygidium normal, convex. Length 2.1-2.15 mm.; width 0.8
mm. Brazil (Chapada). March. Two specimens........umbratilis n. sp.

BRAZILIAN BARINZ 459

Form more oblong-oval, rather stouter, convex and deep black, with less lustre
than in the preceding, the elytra rather shining; beak (9) longer than in
the preceding, equal to the head and prothorax, rather slender and evenly
arcuate, the antennz piceous, submedial, with very abrupt, stouter, paler
and still less pubescent club; prothorax fully a fifth wider than long, the
sides subinflated, parallel and arcuate, very gradually more converging;
apex more than half as wide as the base; punctures moderate and dense
laterally, rather small and separated by between once and twice their widths
medially, with a distinct impunctate line not attaining the apex; scutellum
very free, oval, rather less transverse; elytra nearly as in the preceding but
almost three-fourths longer than the prothorax, subsimilarly grooved and
punctulate; pygidium as usual, convex. Length 2.15 mm.; width 0.9 mm.
Brazill(Chapada)), May.) One specimen... 2.6.6.0 s ee eet tritus n. sp.

Form rather more broadly oval and somewhat larger, evenly oval, differing in
having the elytra duller than the pronotum as in alutaceus and some others
of that section; beak (co) four-fifths as long as the prothorax, feebly arcuate,
evenly rather thick and strongly punctured, or (2) but little less thick than
in the male, but almost as long as the head and prothorax and more arcuate,
somewhat less punctate; antennze very slightly behind and beyond the
middle in the female and male respectively, the scape about as long as the
entire stem; prothorax a fourth wider than long, the sides strongly arcuate,
becoming subparallel and straighter basally; apex half as wide as the base;
punctures rather coarse and very close laterally, less coarse but strong and
separated by about their diameters medially, without smooth line; scutellum
moderate, free, shining and slightly transverse; elytra evenly oval, a third
or fourth longer than wide, barely wider than the prothorax and nearly two-
thirds longer, sericeous in lustre; grooves very moderate, obscurely punctate;
intervals fully three times as wide as the grooves, the punctures of the single
series fine externally, but larger though shallow internally; pygidium very
small, less convex than usual; abdomen more strongly punctured than usual.
Length 2.2-2.3 mm.; width 0.85-0.95 mm. Brazil (Chapada—forest).
March and November. Four specimens.................-. imitator n. sp.

22—Body suboblong-oval, convex, the elytra slightly more shining than the
pronotum; beak (<”) rather thick, evenly, feebly arcuate, strongly punctured
and four-fifths as long as the prothorax; antenne nearly black, medial,
rather short, the scape not as long as the stem, the club short, abrupt, thick
and oblong-oval; prothorax a fifth wider than long, the sides feebly con-
verging and very slightly arcuate, rather rapidly rounding and oblique in
apical third; punctures deep, only moderately coarse but dense laterally,
smaller and separated by nearly twice their diameters medially, without
impunctate line; scutellum moderate, somewhat transversely oval, not very
free; elytra parabolic, fully a fourth longer than wide, slightly wider than
the prothorax and three-fifths longer; grooves moderate, barely visibly
coarser at apex, not distinctly punctate; intervals with single series of
minute but evident and well separated punctures; pygidium normal, rather
strongly convex; abdomen finely and inconspicuously punctate. Length
1.7 mm.; width 0.7 mm. Brazil (Chapada—campo). October. One
SPCCUMETIG RATE LN sea iets cate Rete rec aes ae Nae into Shoebyal eae nanus n. sp.
Body much more narrowly oval, convex, the pronotum finely, strongly, the
elytra more coarsely but strongly, micro-reticulate, the latter the more
shining; beak (co) equal in thickness, evenly and moderately arcuate,
strongly punctured and four-fifths as long as the prothorax; antennz sub-
medial, the scape almost as long as the stem, the club oval; prothorax a fifth
or sixth wider than long, the sides slightly converging, distinctly and sub-

460 MEMOIRS ON THE COLEOPTERA

evenly arcuate throughout; apex much more than half as wide as the base;
punctures relatively small, dense laterally, moderately separated medially,
with a narrow but distinct smooth line; scutellum small, slightly transverse;
elytra a third longer than wide, parabolic, but much less obtusely rounded
than in the preceding, distinctly wider than the prothorax and two-thirds
longer; grooves narrow, distantly punctate; punctures of the single inter-
stitial series fine and shallow, somewhat well separated; pygidium small and
but feebly convex. Length 1.6-1.65 mm.; widtho.6mm._ Brazil (Chapada
—cdampo).. “October: /Three-spetinienis.. suit. eae l4ee wcoere 2 parvus n. sp.
23—Upper surface rather shining, subequally micro-reticulate, convex, rather
narrow, the sides rectilinearly parallel, black in color; beak (o”) as long as
the head and prothorax, evenly and moderately arcuate, moderately slender,
strongly and closely punctate; antenne medial, the scape not quite as long
as the stem, the club very evenly oval; prothorax about as long as wide,
the parallel sides gradually broadly rounding beyond about the middle, to
the wide subtubulate apex, which is about three-fifths as wide as the base;
punctures densely subrugulose laterally and with fine squamules, smaller
and separated by barely their widths medially, with a narrow feeble im-
punctate line forming the summit of a slight prominence of the surface;
scutellum small, free, transverse; elytra oblong, two-fifths longer than wide,
exactly equal in width to the prothorax and three-fifths longer, the sides
parallel and straight, circularly rounded in about apical third; grooves
rather narrow, scarcely punctate; punctures of the single interstitial series
small, moderately separated, each with a distinct slender whitish squamule;
pygidium small, moderately convex. Length 2.2 mm.; width 0.8 mm.
Brazil (Chapada—campo). October. One specimen... ..cylindrellus n. sp.

It is highly probable that the two primary sections defined above
constitute subgenera, but in some respects the very distinct tenut-
rostris, with its deep black elytra and blue-black prothorax, forms
an intermediate; it has very coarsely punctured elytral grooves
toward base. The species named imitator might almost as well be
placed in the valens section, as some general characters, such as
elytral punctuation, correspond, and differ much from those of
umbratilis and tritus, but the bifurcating prominence of the pro-
sternum seems to be obsolete. The small and rather obscure species
of this genus must be extremely numerous, but most of them have
excellent definitive specific characters.

Neogivenius n. gen.

In spite of the notably different habitus, due to the more elongate
cylindric body and tubulate prothorax, this genus is closely allied
to Heterosternus. The beak is long, slender, evenly and moderately
arcuate, separated from the head by a small depression and is
feebly sculptured. Antenne nearly as in the preceding genus, but
more basal. Prosternum with a deep canal, which is apparently
not bifurcate behind, the coxe rather small and separated by
almost twice their width, the posterior lobe rather long, gently
sinuate at apex, the legs short, with rather long, slender tarsi, the
fourth joint very long, slender and the claws apparently free,

BRAZILIAN BARINA 461

strongly divergent and well developed. Prothorax cylindric, the
basal lobe extremely short, transversely truncate, the scutellum
free, transversely quadrate, the elytra deeply grooved and the
pygidium short and semicircular, twice as wide as long, densely
punctured and impressed at each side. The fine distinct and entire
first ventral suture and generally smoother surface, also distinguish
the genus from the preceding. The type is the following:

Neogivenius cylindroides n. sp.—Cylindric, glabrous and rather strongly
shining, rufous in color throughout, the elytra more blackish; beak (@) slender,
a fourth longer than the head and prothorax, feebly tumid dorsally at base,
minutely, sparsely punctate, coarsely behind the antenne, which are at basal third,
rather slender, with abrupt oval, subequally segmented club, the scape about half
as long as the stem; prothorax only very little wider than long, the parallel sides
straight, feebly inflated near the base, rapidly rounded near apical fourth, the
tubulation short and nearly two-thirds as wide as the base; punctures rather
coarse and unevenly close at the sides, then becoming almost as coarse but sepa-
rated by twice their diameters, abruptly much smaller and a little less sparse
near the smooth median line; elytra fully two-fifths longer than wide, at the
slightly prominent humeri evidently wider than the prothorax, not quite twice as
long; sides parallel, behind the middle at first gradually, then circularly, rounded;
grooves slightly and crenulately punctate, gradually moderately exarate distally;
intervals basally twice as wide as the grooves, but, medially, nearly three times,
with single series of very moderate shallow punctures; apices broadly rounded;
sternal punctures strong and sparse, each with a slender squamule; abdomen
finely, shallowly and very sparsely punctate throughout. Length 3.0 mm.; width
1.2mm. Argentina (Mendoza). A single specimen, sent by Desbrochers des
Loges.

It is to be regretted that the male is not at hand, as it might
disclose some interesting characters.

Anathaniops n. gen.

In this genus the body is minute, very slender and subcylindric,
strongly sculptured and virtually glabrous, the beak thick, separated
by a moderate reéntrant angle and strongly sculptured. Antennz
medial, short, the club elongate-oval, compressed, subequally seg-
mented and pubescent, about as long as the six preceding joints.
Prosternum moderately impressed along the middle, widely sepa-
rating the coxe, all of which are notably small, the tarsi slender and
the claws apparently connate at base. The prothorax is not in the
least tubulate at apex, the basal lobe very short, feeble and broadly
rounded, the scutellum very free, small, subquadrate and densely
sculptured, the elytra rather finely grooved, with asperate intervals,
the apices broadly rounded. Pygidium semicircular, densely punc-
tate, transversely tumid inferiorly. The first abdominal suture is
obliterated medially. The type is as follows:

Anathaniops cylindrica n. sp.—Narrow, cylindric-suboval, convex, blackish-
piceous, the elytra just visibly paler, slightly shining; beak (<) thick, nearly as

462 MEMOIRS ON THE COLEOPTERA

long as the head and prothorax, evenly and feebly arcuate; prothorax a sixth
wider than long, the subparallel sides nearly straight, gradually rounding and
moderately oblique beyond about the middle; apex four-sevenths as wide as the
base; punctures coarse and dense, gradually less coarse and slightly separated
medially, with a narrow smooth median line; elytra fully four-fifths longer than
wide, barely visibly wider than the prothorax and distinctly more than twice as
long, the sides parallel and straight, gradually rounding behind, rather obtuse
at apex, the humeral swellings wanting; grooves finely, catenulately punctate
basally, gradually somewhat coarser distally; intervals with single series of
moderate asperate punctures; sterna coarsely, densely punctate. Length 1.85
mm.; width 0.65 mm. Brazil (Santarem). One specimen.

While belonging to the Pseudobarid section, this must be regarded
as a peculiarly distinct genus.

Lupulina n. gen.

The body in this genus is regularly oval, convex, shining and
glabrous, the beak notably thick, strongly curved and feebly sculp-
tured, separated by a moderate reéntrant angle. Antenne short,
submedial, the funicular joints compact, gradually increasing, so
that the outline merges gradually into that of the ovoidal and
densely pubescent club, which is longer than the preceding six
joints and subequally segmented. Prosternum with a wide and
deep, straight shining canal, the coxe large, separated by a little
less than their width, the posterior lobe moderate and evenly,
circularly rounded. The legs are moderate, strongly, densely
punctate, the femora somewhat bent downward distally, mutic, the
middle femora with a dense fringe beneath in the male, the tarsi
moderate, slender, with connate claws. Prothorax faintly sub-
tubulate at apex, the basal lobe very small, short and feebly sinuate,
the scutellum widely free, subquadrate, impressed and roughly
sculptured medially, the elytra with the grooves moderate, but
rapidly very coarse basally and not attaining the basal margin,
coarser but not exarate distally; the apex of each elytron has a
small anguliform tubercle, corresponding to the angulation in the
subgenus Microcraptus. Pygidium small, transversely rounded and
moderately convex, densely punctured as usual. First ventral
suture obsolete medially. There are two species at hand as follows:

Form oval, strongly convex, polished, black and faintly subeneous; beak (<)
very thick, a little longer than the prothorax, the upper contour almost
semicircular in profile, the surface very shining, minutely and sparsely
punctulate throughout, very smooth, not at all compressed; antenne
piceous; prothorax nearly a third wider than long, the sides feebly converging
and moderately, subevenly arcuate from base to the feeble constriction
extending across the dorsal surface; apex rather more than half as wide as
the base; punctures laterad rather coarse, very deep, even and not quite in
mutual contact, gradually less coarse but deep and separated by about
their own diameters medially, without trace of smooth line; scutellum well

BRAZILIAN BARINE 463

developed, slightly elongate; elytra three-fifths longer than wide, with but
feebly oblique arcuate sides and broadly rounded apex, slightly wider than
the prothorax and distinctly more than twice as long, the surface transversely
and feebly tumid near the base; grooves strongly dilated and coarsely
punctured basally, broad and catenulate distally; intervals with single series of
transverse and finely scratch-like punctures, each bearing a very minute
hair; abdomen convex, not modified at base in the type. Length 3.35 mm.;
width 1.35 mm. Brazil (Santarem). One specimen...santaremica n. sp.
Form more elongate-oval, convex, shining and eneous; beak (oc) shorter, barely
four-fifths as long as the prothorax, similar in form, but the head and entire
beak, though finely, are much more densely punctate; antennz piceous;
scrobes similarly deep and very oblique; prothorax only a fifth wider than
long, the sides converging and very evenly, moderately arcuate from base to
apex, the latter not evidently constricted, half as wide as the base; punctures
similar in size, but very dense laterally and barely perceptibly separated
medially, without trace of smooth line; basal lobe a little larger; scutellum
larger, as wide as long and more obtrapezoidal; elytra oval though very
obtusely rounded at apex, fully three-fifths longer than wide, a little wider
than the prothorax and evidently more than twice as long; surface and
sculpture nearly as in the preceding, the grooves similarly coarse and strongly,
catenulately punctate basally, but rather less so apically; interstitial punc-
tures nearly similar, but a little stronger and closer; abdomen with a shallow
medial impression at base in the male. Length 3.8 mm.; width 1.6 mm.
Beazily(Gantarem): “One-specimen......4...0..0. 80.6 submetallica n. sp.

It is quite evident from the characters given above, that. this
genus also is one of the Pseudobarid series, but the beak is very
different from anything known among the neosubarctic forms.

Brachylinoma n. gen.

A single small species of subpyriform outline and shining, glabrous
surface, alone represents this genus thus far. The beak is rather
slender and cylindric, evenly and strongly arcuate, separated from
the head by a large deep reéntrant angle, and strongly, longitudi-
nally sculptured basally, smoother distally. Antennz behind the
middle, the scape short, the funicle thick, compact, merging distally
into the outline of the club, which is large, oval, subequally seg-
mented, gradually formed and almost as long as the stem. Pro-
sternum with a parallel canal and circularly rounded posterior lobe,
the coxe rather well separated. Legs very short, the femora mutic,
slightly bent distally, the tibiz very short; tarsi slender and as long
as the tibiz, the claws connate. Prothorax small, not tubulate,
the basal lobe very short, feebly sinuate medially; scutellum sub-
quadrate, very free, with a polished medial canal, which does not
attain its base; elytra short, oblong, the grooves gradually finer
from the base, slightly coarser again at apex, the latter evenly,
individually rounded. Pygidium moderate, semicircular and con-
vex. The type is as follows:

Brachylinoma clavigera n. sp.—Ovoidal, convex, polished and deep black
throughout, glabrous; beak (9) as long as the head and prothorax, very arcuate,

464 MEMOIRS ON THE COLEOPTERA

subequal in thickness throughout and shining, the antenne blackish; prothorax
a third wider than long, the converging sides moderately and evenly arcuate
throughout; apex more than half as wide as the base, the surface feebly impressed
transversely near apex; punctures coarse, deep and slightly separated laterally, ©
smaller and separated by nearly twice their widths medially, without smooth
line; elytra a fourth longer than wide, very obtuse at apex, the sides but feebly
oblique, more than a fourth wider than the prothorax and much more than twice
as long; grooves even, not distinctly punctate; intervals with single series of
fine, transversely lunate punctures, each bearing a minute hair; abdomen almost
impunctate medially, with the first suture obliterated. Length 2.3 mm.; width
1.0mm. Brazil (Santarem). One specimen.

Brachylinoma is evidently in the same group of genera as the
preceding, but it differs in the entire form and facies of the body,
in the character of the elytral striation, absence of apical tubulation,
much shorter legs and rather different character of the beak.

Giveniopsis n. gen.

Another genus of this Pseudobarid group seems to be demanded
by some minute obscure forms, with oblong-suboval outline and
conspicuous setiform squamules sparsely clothing the body. The
beak is somewhat as in the preceding, moderately slender, even in
thickness, cylindric and strongly, evenly arcuate, but it is less
strongly separated from the head and is smooth, having minute,
sparse punctures throughout. Antenne variable, the club small,
rather abrupt, narrowly oval and scarcely over half as long as the
stem in typical species. Prosternum with a rather narrow, deep
and very sharply defined canal, the posterior lobe broadly arcuate.
Legs moderate, the femora straight; tibia moderate, the slender
tarsi shorter than the tibize; claws connate. Prothorax relatively
very moderate in size, briefly tubulate at apex as a rule, the basal
lobe small, rounded. Scutellum small, subpentagonal, with raised
edges; elytra each broadly, evenly rounded at tip, the grooves
rather fine; pygidium small, semicircular, feebly convex. Abdomen
differing in having the first suture fine but distinct, narrowly sub-
obsolete at the middle. The species are moderately numerous,
those at hand being as follows:

Form oblong, stout, the antennal club very small; serial punctures of the elytra
shallowly concave. Black, with rufo-piceous legs, the setiform squamules
conspicuous; beak (9) moderately slender, evenly and strongly arcuate,
cylindric, minutely, sparsely punctate, gradually strongly so basally, some-
what longer than the head and prothorax; antenne evidently behind the
middle, rufo-piceous, rather slender, the first funicular joint as long as the
next three, the club narrowly oval, abrupt and only as long as the preceding
four joints; prothorax fully a fourth wider than long, the feebly converging
sides almost straight, rounding apically; apex more than half as wide as the
base; punctures moderate, deep, very close throughout; elytra oblong, only
a fourth longer than wide, a fifth wider than the prothorax and more than

BRAZILIAN BARINZ2 465

twice as long; sides parallel and nearly straight; apex rapidly and broadly
rounded; striz fine; interstitial punctures large, transversely oval and almost
in mutual contact. Length 2.25 mm.; width 1.0mm. Brazil (Chapada—
- forest). November. One specimen....................-. piceipes n. sp.

Form much narrower, oblong-suboval, convex, black, with more or less dark
rufo-piceous legs; silvery setules of the elytra smaller, less close and less
conspicuous, the interstitial punctures transversely and finely lineate, more
widely separated; antennal club relatively larger...........5............ 2

2—Beak (c") moderately thick, as long as the head and prothorax, evenly,
somewhat strongly arcuate, equal throughout, finely, sparsely punctate,
more strongly and densely toward base, the entire surface with extremely
minute strigilation, giving a sericeous lustre; antennz just visibly beyond
the middle, obscure rufous, the first funicular joint longer, equal to the
next four, the outer joints compact, gradually a little wider, the elongate-
oval and equally segmented pubescent club as long as the five preceding
joints; prothorax short, two-fifths wider than long, the outline nearly as in
the preceding; apex four-sevenths as wide as the base; punctures similar,
deep and dense, but separated medially by half their widths; scutellum with
a shallow opaque concavity; elytra a third longer than wide, nearly a fifth
wider than the prothorax and fully two and one-half times as long, parallel,
with straight sides, obtusely rounded at apex; grooves very moderate, the
transverse fine punctures rather well separated; tarsi very slender, the third
joint scarcely dilated. Length 2.45 mm.; width 0.85,.mm. Brazil (Cha-
pada))s pWiakehee One Specimens... 2. uls > snacts cf cree te ns brevicollis n. sp.

Beak (o) thicker, scarcely longer than the prothorax, strongly arcuate, finely,
sparsely strigilate but shining, the minute punctures only moderate and
well separated basally; antennz piceous, medial, the first funicular joint as
long as the next three, the others short and transverse, the club larger,
oval, longer than the six preceding joints; prothorax much narrower, only
a fourth wider than long, the sides feebly converging and slightly arcuate, a
little more so apically; apex nearly three-fifths as wide as the base; punc-
tures almost as in the preceding but not quite so deep, slightly separated
medially; scutellum small, oblong, impressed along the middle; elytra
fully a third longer than wide, more than a fourth wider than the prothorax
and distinctly over twice as long, the parallel sides straight; apex obtusely,
subcircularly rounded; sculpture somewhat as in the preceding. Length
1.8 mm.; width 0.7 mm. Brazil (Chapada—forest). November. One
SPECI C IR ete Mie STE SOIT RAO LEAL LS OUr oe morosa Nn. sp.

Beak (co) rather thick, feebly tapering, somewhat strongly arcuate and coarsely,
densely and rugosely punctate throughout, though somewhat shining, almost
as long as the prothorax; antennz blackish, just visibly beyond the middle,
rather slender, the first funicular joint as long as the next four, the others
not very compact and only moderately transverse, slightly increasing, the
narrowly oval pubescent club as long as the preceding five joints; upper
surface of the body more shining; prothorax a third wider than long; sides
feebly converging, gradually rounding beyond the middle; punctures moder-
ate in size, deep, less dense than in the preceding, separated by more than
half their widths medially, without smooth line; scutellum differing in being
coarsely, densely punctate throughout; elytra a third longer than wide,
fully a fourth wider than the prothorax and distinctly more than twice as
long; sides parallel, very feebly arcuate, gradually, then broadly and obtusely,
rounding behind the middle; grooves deep, rather coarser, half as wide as
the intervals, the serial punctures of which are more sharply defined, more

T. L. Casey, Mem. Col. X, Oct. 1922.

466 MEMOIRS ON THE COLEOPTERA

widely separated and feebly asperate. Length 2.0 mm.; width 0.75 mm.
Brazil (Chapada—forest). November. One specimen......asperula n. sp.

There are remarkable incongruities in the form and sculpture of
the beak and in the relative structure of the antennz in this genus,
rendering the species as described above definite and rather free
from doubt; they probably all occur in flowers of various species.

Megalobaris n. gen.

We come now upon a series of large and conspicuous species,
hitherto placed in Baris, or the Schénherrian Baridius, but dis-
tinguished by such radical structural differences that they must be
assigned to several genera, all very distinct from the much smaller
Baris proper. Megalobaris is represented at present by a single
species, the largest and most beautiful—if this expression may be
allowable—of the entire tribe. The body is broad, rather faintly
subrhombic-oval, convex and shining, with extremely coarse but
not at all dense sculpture and wholly glabrous and metallic integu-
ments. The beak is cylindric, feebly arcuate, just visibly tapering
from base to apex, separated by a very feeble impression and
without impressed canals beyond the antenne, these submedial
and moderate, the first funicular joint as long as the next three,
the outer joints compact and increasing in width, the club small,
conically pointed, not as long as and barely wider than the three
preceding joints, pubescent, with short glabrous basal segment.
Prosternum short, broadly, feebly impressed and separating the
coxee by a third their width, the posterior lobe moderate, with a
deep medial sinus at apex. Prothorax obliquely tubulate at apex,
the basal lobe prominent and rounded, the scutellum free, parallel,
truncate, slightly longer than wide and crossed by three deep and
punctate, setulose grooves. Elytra with extremely fine and feeble
strie, bearing very large deep elongate-oval fovee; the striae become
however very coarse and deep basally and distally. Pygidium
moderate, circularly rounded, sharply and prominently umbonate
below the middle. First ventral suture fine but distinct throughout
the width. The type may be described as follows:

Megalobaris resplendens n. sp.—Broad and convex, the integuments polished
and devoid of any minute sculpture, cupreous, more neous anteriorly; under
surface greenish-metallic, the legs blue; beak (9) rather thick, two-thirds as
long as the prothorax, shining, black, minutely, sparsely punctulate, becoming
coarsely punctate and cupreous in about basal fourth; antenne nearly black,
shining; prothorax three-sevenths wider than long, the sides converging and
broadly, subevenly arcuate to the oblique-sided tubulation, which is three-sevenths
as wide as the base; disk a little wider near than at the base; punctures deep,
very coarse and subconfluent at the sides, less coarse and rather dense thence
throughout anteriorly, but coarser and widely separated behind the middle, with

BRAZILIAN BARINE 467

a small central impunctate area; elytra a fourth longer than wide, fully a fifth
wider than the prothorax and very nearly twice as long, the sides moderately
oblique behind the broadly arcuate humeri, gradually and not obtusely rounded
at apex, with reéntrant sutural angle; surface feebly, transversely undulated on
the flanks; fovez very large and deep, clearly separated; intervals with single
series of coarse and well separated punctures; legs moderate, the tibiew short;
tarsal claws long and slender. Length 11.5 mm.; width 6.0 mm. Brazil (Cha-
pada). October. One specimen.

The under surface has very coarse and well separated punctures,
less coarse on the abdomen, where the first two segments combined
occupy nearly three-fifths the entire length.

Dissopygus n. gen.

A single species again necessitates a separate genus, as so often
occurs among the tropical Barine. In this case the body is large,
oblong and parallel, convex, glabrous and rather shining, the elytra
very feebly micro-reticulate, the punctures beneath bearing very
fine setee. The beak is very short, thick and strongly, closely
punctate, not separated from the head by an impression, the
antenne medial, with very coarse and deep, oblique scrobes and, in
the male at least, the funicle is subcylindric, thick, composed of very
transverse joints beyond the first, which is scarcely as long as wide,
the club very short, scarcely as long as wide, about as wide as the
funicle and with its basal segment glabrous and the first suture
arcuate or broadly lobed medially. ‘The prosternum is short, very
broadly, feebly concave, separating the coxe by half their width,
the posterior lobe feebly sinuate and deeply concave in posterior
half or more. Prothorax only very obsoletely subtubulate, the
basal lobe short, very broad and gradual, obtusely angulate, the
scutellum free, rounded, rather convex and nearly smooth. Elytra
broadly undulated, with deep and strong striz, bearing moderate
rounded foveiform punctures, the subapical transverse elevation
distinct. Pygidium transversely oval, densely punctate, moderately
convex and slightly umbonate just below the middle. First ventral
suture fine but evident throughout. Legs moderate, the tibize of
usual length; tarsi rather dilated, with moderate ungues. The type
is as follows:

Dissopygus oblongus n. sp.—Parallel, strongly convex and moderately shining,
zneous throughout; beak (co) very short and thick, feebly arcuate, not three
times as long as wide and scarcely over half as long as the prothorax, not com-
pressed, coarsely and closely but discretely punctate throughout; antennz black;
prothorax two-fifths wider than long, the sides parallel and strongly arcuate,
becoming arcuately, then sinuously, oblique to the apex, which is three-sevenths
as wide as the base, the disk widest at two-fifths from the base; punctures very
large, deep and rather well separated, with a large vacant space at each side and
another in the middle, all just behind the middle of the length, the middle area

468 MEMOIRS ON THE 'COLEOPTERA

continued to the apex by a narrow and smooth, completely coplanar line; elytra
about a third longer than wide, hardly visibly wider than the widest part of the
prothorax and two-thirds longer, the sides feebly oblique, nearly straight; apex
rather rapidly rounded, with large reéntrant sutural angle; strial punctures deep,
rounded, distant and two to three times as wide as the striae; interstitial series
single to confused, composed of rather coarse punctures; propygidium densely
punctate, feebly elevated along the middle, oblique, the pygidium vertical; under
surface with coarse and moderately separated punctures; male abdomen with a
large deep basal cavity. Length 9.7 mm.; width 4.8 mm. Brazil. A single
specimen, sent to me without further indication of locality by Desbrochers des
Loges, under the name Baridius metallescens Boh.

This species does not accord very well with the description of
metallescens Boh., the expressions ‘‘linea levi thoracis magis elevata,”
when there is no trace of an elevated line, and “thorax latitudine
baseos fere longior’’ and ‘‘antenne x basi testacee,”’ being
wholly irreconcilable, even though we admit that the type of
Boheman may be a female, where the antenne are doubtless much
more slender than in the male type of oblongus.

Sclerobaris n. gen.

The body in this genus is often almost as large as in Megalobaris
and is of stout, suboval form and convex, moderately shining,
glabrous surface. The beak is moderately long, cylindric, evenly
and slightly arcuate, usually very feebly bent at the point of
antennal insertion, separated from the head by a large and very
shallow impression, and is coarsely, loosely punctate, less coarsely
distally, especially in the female, there being very little sexual
difference in structure. The antenne are peculiar and very different
from those of allied genera, rather long and slender in the female,
shorter but of the same general structure in the male, the club
large, abrupt, elongate-oval and densely pubescent. Prosternum
short, with a moderate and parallel, shallow but subcanaliform
impression, very narrowly separating the coxe and with the posterior
lobe moderate and feebly sinuate. Prothorax subsinuously oblique
at the sides anteriorly, but not at all tubulate, the basal lobe moder-
ate and broadly rounded. Scutellum flat, quadrate and sometimes
slightly punctate, free, the elytra with coarse deep striz, which are
moderately and crenulately punctate. Pygidium small, semicircu-
larly rounded, flat, obtusely carinulate along the median line. The
legs are rather long and of normal structure, the tarsi with the
second and third joints both notably dilated, the claws very moder-
ate, arcuate. The first ventral suture is fine but distinct through-
out. The three species now in my collection are as follows:

Color black, the elytra each with a large basal red area, gradually diminishing in
length inwardly, and not quite attaining the suture..................... D

BRAZILIAN BARIN 469

Color pale ferruginous throughout... ....- 6+ 0s cece eee erent eerste eset es 3

2—Body larger in size, oval, with rather prominent humeri, strongly convex;
beak (oc) somewhat longer than the prothorax; antenne medial, the first
funicular joint one-half longer than wide, the others moderately transverse,
not very compact, the club as long as the six preceding joints, the first
segment about half the length, obconic, with only its extreme base glabrous;
prothorax two-fifths wider than long, inflated basally, just visibly narrower
at base than at a little beyond, the sides arcuate, oblique and nearly straight
in more than apical half; apex nearly three-sevenths as .wide as the base;
punctures coarse and unevenly close laterally, less coarse and somewhat
widely separated discally, smaller and closer apically and with a very uneven
vacant space near lateral fifth; median line broadly impunctate, feebly
impressed except apically; elytra a third longer than wide, a fourth wider
than the prothorax and more than twice as long; surface not undulated but
transversely prominent near the apex; coarse punctures well separated and
crenulating the intervals, which are convex and finely, sparsely and con-
fusedly punctate; male abdomen with a very large shallow basal impression,
the fifth segment tumid at the middle of the apex and with minute liguliferous
sinus. Length 8.9-10.9 mm.; width 4.7-5.8 mm. Brazil (Chapada).
October and January. Three specimens.......-----++++--+> regalis n. sp.

Body decidedly smaller, more narrowly suboval, black, with dark blue metallic
lustre, scarcely evident however on the pronotum, except in the feebly
impressed smooth median line; beak (oc) deep black, nearly as in the pre-
ceding but somewhat shorter, not quite as long as the prothorax; antenne
almost similar, the club very large; prothorax narrower, about a third wider
than long, widest at base, less rapidly inflated basally, the sides broadly
arcuate, only a little less so anteriorly; apex barely three-sevenths as wide
as the base; punctures similar in arrangement but less coarse throughout;
scutellum quadrate, smooth; elytra similar in general outline and sculpture,
but narrower, even more obtusely rounded: behind, the deep reéntrant sutural
angle similar; strial punctures even more completely coalescent basally ;
pygidium tarnsversely oval; male abdominal impression large and shallow,
but more acute along the median line, the fifth segment scarcely tumid,
but with the small deep sinus, bearing a parallel ligula, well defined. Length
8.3 mm.; width 4.35 mm. Brazil (Chapada). November. One specimen.

preestans n. sp.

3—Form rather more oblong-oval, convex; beak (?) very evenly cylindric and as
long as the prothorax, evenly and moderately arcuate, coarsely, closely punc-
tate, gradually finely and sparsely so distally; antenne long and rather slender,
piceous, submedial, the first funicular joint elongate, dilated at apex, more
rufous in color and as long as the next three, the outer joints not dilated,
fully as long as wide, the club abrupt, elongate-oval and rather longer than
the preceding four joints; scape rather slender, rufous, blackish basally;
prothorax a third wider than long, the sides parallel and nearly straight near
the base, then broadly rounding, becoming oblique and almost straight in
anterior two-thirds; apex only two-fifths as wide as the base; punctures
nearly as in regalis in arrangement and size, the smooth median line more
dilated centrally and less impressed ; scutellum with a few punctures; elytra
three-sevenths longer than wide, nearly a fourth wider than the prothorax
and much more than twice as long; humeri prominent; sculpture nearly as
in regalis, except that the strial punctures are coarser and closer, circular;
pygidium nearly as long as wide, circularly rounded, feebly carinate. Length
10.3-I1.0 mm.; width 5.3-5.7 mm. Brazil (Chapada). December and
January. Three female specimens.........++-++:- Ret eae he adc rutila n. sp.

470 MEMOIRS ON THE COLEOPTERA

The beak is not at all compressed and there is no lateral groove
at the sides beyond the antennz, as evident in so many of the
Centrinid genera.

Stereobaris n. gen.

This is the most extensive genus among the large and conspicuous
Barids of Brazil and includes numerous species. The body is more
or less rhombic-suboval, convex and with very coarse sculpture, the
foveee upon the fine elytral striz being relatively very large and
elongate-oval, somewhat as in Megalobaris; the surface is glabrous
above, but, beneath, the coarse punctures bear each a remarkable
decumbent scale, more or less divided apically along the lines of
striation, so that in the very large scales of metallica, the truncate
apex appears to be fringed; in delecta and some other species, the
scales are narrow, parallel and much less conspicuous, though of the
same general character. The beak is rather thick, evenly cylindric,
uncompressed and feebly arcuate, separated from the head by the
feeblest sort of impression, coarsely punctured basally and finely,
sparsely so distally. Antennz submedial, moderately long, with
elongate-oval and gradually pointed club, pubescent, but glabrous
at the extreme base, the club very much smaller and the first
funicular joint longer in the female than in the male. Prosternum
but feebly impressed, separating the coxez by one-half to a third
their width, the moderate posterior lobe more or less gently sinuate
medially at tip. The prothorax is not definitely tubulate at apex,
the rounded basal lobe more or less prominent, the scutellum free,
subquadrate and smooth and the elytral strie notably fine, with
large and deep, elongate-oval fovee. The pygidium is rather
strongly oblique, small, and it is often very prominent along the
middle distally. The genus is rather closely related to the pre-
ceding, but differs radically in the system of elytral sculpture and
in the vestiture of the under surface, also in the much smaller
antennal club. The species now at hand are the following:

Pronotum feebly impressed medially toward base; larger species; color black,
with strongly bronzed lustress. -imiaticeki eyes ere-1 ae oe nero hey ke Cece 2
Pronotum not impressed; coloration diverse; size generally much smaller... ..5
2—Elytra but little longer than wide, the sides strongly oblique, the humeral
prominences rounded but large and conspicuous. Scales of the under surface
very large, broad and conspicuous; beak (co) cylindric, feebly arcuate,
four-fifths as long as the prothorax, bronzed and very coarsely punctate
basally, gradually black and finely, sparsely punctured distally; antenne
black; prothorax very convex in lateral profile, a third wider than long, the
sides rather strongly arcuate, gradually becoming parallel basally; apex
evidently less than half as wide as the base; punctures extremely coarse,
polygonally crowded laterally, elsewhere moderately separated, sparse at the
sides of the basal impression, without trace of median smooth line; scutellum
longer than wide, widest near the rounded apex, smooth; elytra a fourth or

BRAZILIAN BARINZ 471

fifth longer than wide, almost a third wider than the prothorax and scarcely
twice as long; oblique sides straight, the apex not very obtuse, with the
usual reéntrant sutural angle; large oval fovee along the fine striz close-set;
irregularly uniserial interstitial punctures coarse, less so and more distant
suturally; pygidium very prominent along the median line distally; male
abdomen with a large shallow basal impression, the fifth segment with a
small apical sinus, having a minute triangular median tooth. Length 10.0
mm.; width 5.3 mm. Brazil (locality unrecorded). One specimen, from

Deshbroctiers:GesMeogesae cay siya thepeecst 0s 86 <Pdah so teas humerosa n. sp.
Elytra much longer than wide, with less oblique and faintly subsinuous sides and
OBENSE a MOMMOedeA DEN erence fete cla jo a slau anny ara, wy Selle Mie do ere wim Goa nus ees 3

3—Prothorax with the sides strongly, subevenly arcuate, gradually becoming
parallel at base, as in the preceding species. Body smaller and narrower,
similar in color and general characters, the broad scales of the under surface
smaller, sparser and much less conspicuous, each lying wholly within a very
coarse puncture; beak (co) nearly similar in every way, but with a more
distinct lateral-impression extending beyond each antenna, the latter black,
with slightly narrower club; prothorax not quite so convex in profile, nearly
similar in form and sculpture, the very coarse punctures close throughout,
not sparser at the sides of the impression; basal lobe differing greatly, being
gradually cuspidiform, with narrow and not very broadly rounded apex;
scutellum rounded-quadrate, not at all elongate; elytra nearly a third longer
than wide, almost a third wider than the prothorax and distinctly more than
twice as long; sculpture and also the pygidium almost similar; male abdomen
with the large basal impression relatively narrower and much deeper than
in the preceding, the fifth segment with shallower sinus and narrower, more
isolated minute tooth; female beak just visibly less thick and a trifle longer
than in the male, otherwise similar. Length 9.3-9.5 mm.; width 4.8-4.9
Mim raze (Santarent): ws lwOISPeECIMeENSie - ye \)e © see eo impressa n. sp.
Prothorax more parallel, the sides strongly rounding only beyond the middle,
tubulate at apex; scales of the under surface each inclosed within a coarse
jOUWNNKCEDIRES. sp cole n demo Deon dao oo be aes Se Ot Tn eas ot cunts Oc HAH Bhan Bre cubiobo 4

4—Scutellum quadrate, flat; body rhombic-suboval, shining, with full bronze
lustre; beak ( @ ) slightly shorter than the prothorax, not very thick, cylindric,
evenly arcuate, black and minutely, remotely punctulate, becoming coarsely
punctate and bronzy at base; antennal club pointed, as long as the three
preceding joints; prothorax strongly convex in lateral profile, a third wider
than long; punctures extremely coarse and subconfluent laterally, still very
large but circular, deep and slightly separated elsewhere, denser apically,
without smooth median line; elytra nearly a third longer than wide, almost
a third wider than the prothorax and twice as long; surface rugose, the fovez
very large, close-set; interstitial punctures very coarse and uneven, smaller,
regularly uniserial and very widely spaced on the first two intervals; pygidium
with a thin and strongly elevated carina throughout the length; scales of
the under surface widely separated but subquadrate and distinct. Length
I1.0 mm.; width 5.6 mm. Brazil. One female example from Desbrochers
des Woges., | Barrdeus metallicus Boh.\\o oo: 65 42 eeiche oie 5 oh oe metallica Boh.

Scutellum elongate, dilated posteriorly, having a large impressed longitudinal
canal; body more elongate, similar in coloration and lustre, the beak (?)
relatively shorter, not over three-fourths as long as the prothorax, otherwise
nearly similar; antennal club ovoidal, conically pointed, longer than the
three preceding joints; prothorax as in the preceding throughout, except
that the tubulation is less abbreviated and in having an elongate smooth
spot on the median line just behind the middle; elytra nearly similar but

472 MEMOIRS ON THE COLEOPTERA

somewhat longer, more obtuse behind and with the oblique sides more
sinuate; pygidium more feebly and obtusely carinulate along the middle;
scales of the under surface muchsmaller, though broad in form, inconspicuous,
the metasternal punctures less coarse; fifth ventral with the margin thickened
medially in a way not noticeable in the preceding female. Length 11.0 mm.;
width 5.7 mm. Colombia. A single female from Desbrochers des Loges.

scutellata n. sp.

5— Body with.dark bronze or czeneous IStre:. 720s es ee oe eee ee 6
Body bright blue or greenish-blue throughout................... 00. eeeeeees 8

6—Beak shorter, thicker, more arcuate, tapering and punctate nearly as in
Cymatobaris; pronotum very coarsely and densely cribrate, the punctures
isolated basally; median impunctate line parallel, somewhat convex and
very well defined, though not attaining the apex. Form oblong-oval, shining;
beak (<7) three-fourths as long as the prothorax, the punctures moderately
strong, separated, gradually fine and sparse distally, or (9) almost exactly
similar, though perhaps a trifle longer and even more coarsely punctate;
antenne medial (co) or just visibly post-medial (9), of nearly normal
structure, the scape notably short, the club abrupt, thick and oval, less
pointed, as long as the three or four preceding joints, the scrobes very large,
oblique and cavernous, prolonged somewhat beyond the antenne; prothorax
very convex in lateral profile, a fourth wider than long, the arcuate sides
becoming parallel basally, obliquely, feebly arcuate from behind the middle;
apex not tubulate, much less than half as wide as the base; basal lobe nar-
rowly and feebly sinuate at apex; scutellum subquadrate, medially channeled
except at base; elytra a fourth longer than wide (9), a little longer (<%),
a fourth wider than the prothorax and nearly four-fifths longer; striz
catenulate, with very large, deep and elongate fovee; intervals throughout
with single series of coarse punctures; pygidium transversely oval, slightly
oblique, nearly flat in both sexes and very feebly subcarinate; scales of the
under surface small, at the bottom of very coarse and deep punctures and
very inconspicuous; male with a parallel impression in basal two-fifths of
the abdomen, the tip of the fifth segment entire, not liguliferously sinuate
as in the metallica section. Length 7.2-8.5 mm.; width 3.5-4.4 mm. _ Brazil
(Chapada)) “October..' ‘Three‘specimens..).4;2 2222. . eee consessor n. sp.
Beak less thick, subevenly cylindric and more nearly as in the metallica section;
median regions of the pronotum with large impunctate area............. 7

7—Body oblong-suboval, shining, cupreo-zneous; beak in both sexes as long as
the prothorax, cylindric, black, shining and finely, sparsely punctate, neous
and very coarsely punctate in less than basal half, feebly arcuate, sometimes
slightly swollen above basally; antenne medial, the club ovoidal, obtusely
pointed, abrupt and about as long as the four preceding joints; prothorax
strongly convex in lateral profile, two-fifths wider than long, the strongly
arcuate sides gradually becoming parallel posteriad; apex tubulate, less
than half as wide as the base; punctures very coarse and deep, unevenly
distributed but generally rather widely separated; post-medial vacant area
usually continued forward to the apex in a narrow smooth line; scutellum
subquadrate, unimpressed; elytra a fourth longer than wide, about a fourth
wider than the prothorax and twice as long; sides but feebly oblique; humeri
only slightly prominent; strial foveee deep but narrow and elongate, the
surface more or less rugose; punctures of the interstitial series coarse and
widely separated, decidedly small on the first two or three intervals; pygid-
ium very prominent along the median line, especially toward apex in the
male, the latter with the metasternum and basal part of the abdomen broadly
and shallowly impressed, the fifth segment with a very small, obtusely

BRAZILIAN BARINZ 473

toothed sinus. Length 6.3-8.4 mm.; width 3.2-4.4 mm. Brazil (more
widely distributed than any other Barid, occurring at Chapada, Santarem,
Espirito-Santo and Rio de Janeiro). Twenty specimens. [Baris inter-
PUACLELONG ELMS eee Mei sAeoe Ae tion on UR ee eee interpunctata Germ.

Body much smaller in size but almost similar in coloration, structure and male
sexual characters; beak (<”) shorter, not as long as the prothorax, a little
more prominently arcuate above at the antennae, cupreous and strongly
punctate in more than basal half, thence to the apex with the punctures
stronger than in the preceding and less sparse; antennal club relatively less
elongate-oval; prothorax smaller and a fourth wider than long, the feebly
converging sides evenly but less strongly arcuate from base to tubulation,
which is half as wide as the base; punctures very coarse, similarly uneven
in distribution, but on the whole closer, very dense at the sides and apex;
impunctate line from the posterior vacant space to the apex narrower and
prominent; elytra nearly similar but narrower, much wider than the pro-
thorax and distinctly more than twice as long; male pygidium more broadly
and obtusely tumid medially toward apex. Length 5.75 mm.; width 2.7
mm. Brazil (Petropolis). A single specimen, from Desbrochers des Loges.

otiosa n. sp.

Body still smaller and much narrower, similar in coloration and lustre; beak (<7)
longer and relatively less thick, as long as the prothorax, the upper surface
more prominent at the antenne, colored and sculptured nearly as in inter-
punctata; antennal club rather larger, oval, ogival at apex and somewhat
longer than the four preceding joints; prothorax of different outline, a fourth
wider than long, the sides converging and nearly straight, rapidly rounding
anteriorly to the strong tubulation, which is fully half as wide as the base;
coarse punctures in general crowded, sparser basally and with a sharply
isolated smooth spot near each side, the medial smooth area continued
narrowly but not prominently to the apex; scutellum very smooth, sub-
quadrate; elytra nearly as in the two preceding, but with the strie as in
otiosa, relatively coarser and more exarate distally than in interpunctata,
much wider than the prothorax and distinctly more than twice as long;
pygidium (co) extremely prominent along the median line; sinus of the
fifth ventral very much shallower, almost obsolete, with very short, broad
and obtuse ligula. Length 5.0 mm.; width 2.3 mm. Brazil (Espirito-
Santo). One specimen, from Desbrochers des Loges......... parvula n. sp.

8—Form oblong-suboval, convex, shining, more sparsely sculptured and smoother
than usual; beak (co) cylindric, evenly and moderately arcuate, feebly
tapering, strongly but loosely punctate and bluish basally, more feebly and
sparsely punctate and black distally, only three-fourths as long as the pro-
thorax, or (2) almost similar but a little thinner; antennz medial, black,
the club short, abrupt, oval and barely longer than the three preceding joints;
prothorax strongly convex in profile, a fourth (o) to third (Q) wider than
long, the sides strongly arcuate, gradually parallel basally, the tubulation
gradually formed and only three-sevenths as wide as the base; prominent
basal lobe rather narrowly rounded; punctures not so large as usual and
distinctly separated even at the sides, sparse medially, without a well defined
median impunctate area or anterior line; elytra barely a fourth longer than
wide, scarcely more than a fifth wider than the prothorax and not quite
twice as long, the sides but feebly oblique and slightly arcuate; strial fovez
large, deep and narrowly suboval, rather widely separated but very con-
spicuous; punctures of the even interstitial series rather small, remote,
becoming very small suturally; pygidium (co) very moderately tumid
along the middle, or (9) evenly and strongly convex throughout; male

474 MEMOIRS ON THE COLEOPTERA

abdomen with a large shallow elongate-oval basal impression, the sinus of
the fifth segment very shallow, but with an unusually broad truncate median
projection. Length 5.9-8.0 mm.; width 3.5-4.4 mm. Brazil (Chapada).
October. ;Eight specimens.) ... i0..../0<c2 shew es Sees eee delecta n. sp.

The peculiar and very constant elytral sculpture in this genus is
a valid generic character, separating the species at a glance from
those of Sclerobaris; it is, however, somewhat similar to that of
Megalobaris, which differs in several important features relating to
the antenne and prosternum, as shown in the table of genera.
Delecta is probably allied to Baridius parellinus Boh., but there is
no trace of the very smooth: median thoracic line of that species.

Cymatobaris n. gen.

Again it is a radical divergence in the scheme of sculpture, which
constitutes one of the primal generic features of a small group of
species separated under the above name. The body is smaller than
in any of the preceding genera and of oblong form, the elytra very
conspicuously undulated and with very fine but sharply defined,
wholly impunctate striae. The beak also is peculiar, although
approached by consessor of the preceding genus, in being very short
and thick, with its upper profile strongly arcuate, making the
reéntrant angle separating it from the head rather more distinct,
though very obtuse. Antenne medial, the scape short; first
funicular joint cylindric and as long as the next two, the outer
joints short, transverse, increasing in width and obtrapezoidal in
form, the club thick, obtusely conoidal and as long as the three or
four preceding joints, glabrous or nearly so basally. Prosternum
short, broadly and feebly concave, separating the coxe by two-
thirds their width, with the posterior lobe moderate in size but
transverse and conspicuously tumid. Legs rather short, simple,
the tarsi rather slender, with very moderate and slender claws.
Prothorax strongly gibbous in lateral profile, tubulate at apex and
with somewhat prominent rounded basal lobe, the scutellum trans-
versely quadrate and smooth. Pygidium sharply and evenly cari-
nate along the middle (@), less so and rather tumid (co). The
under surface is glabrous, each puncture having only an extremely
minute slender seta. The species known to me are as follows:

Body bright steel-blue throughout, shining, the abdomen blacker; beak ( ?)
black, not three times as long as wide, two-thirds as long as the prothorax,
strongly, loosely punctate, more finely distad; antenne short, piceous-black;
prothorax even in convexity, not foveate, short, one-half wider than long,
the sides parallel basally, evenly rounded beyond the middle to the large
tubulation, which is not quite half as wide as the base; punctures coarse,
unevenly close laterally, more or less remote elsewhere, those bordering a
feebly defined smooth line not so coarse; elytra oblong, with nearly parallel

BRAZILIAN BARINE 475

sides, very broadly and obtusely rounded at apex, scarcely a fifth longer
than wide, distinctly wider than the prothorax and about twice as long;
surface strongly, transversely undulate, strongly and transversely elevated
subapically, the fine striz dilated and impressed at base and very coarsely,
deeply impressed apically, the intervals having sparse and uneven punc-
tures, notably fine suturally. Length 7.5 mm.; width 4.0 mm. Brazil

(Rio de Janeiro). October. One specimen..............-. chalybea n. sp.
Body narrower, more or less cupreo-zneous in lustre throughout, the antenne
paler; pronotum with a deep discal fovea at CAChUSIde cb ust ce ase oe ee 2

2—Body obscure zneous to blackish, oblong, polished; beak (2) very short,
thick, strongly arcuate, between two and three times as long as wide, with
very coarse deep irregular punctures, separated by narrow shining inter-
spaces; front with a simple feeble impression; antenne short, fuscous,
gradually paler basally; prothorax two-fifths wider than long, the sides
parallel and arcuate, rapidly rounding and convergent at apex to the strong
and wide tubulation; punctures coarse, dense and rugose at the sides, very
irregularly remote discally, without well defined median impunctate line;
scutellum smaller, subquadrate; elytra oblong, very obtusely rounded at
apex, a fifth longer than wide, not quite twice as long as the prothorax;
surface extremely and deeply undulated, the fine sharp striae much dilated
at base and very coarsely deep and exarate behind in crossing the subapical
transverse elevation. Length 6.5-7.0 mm.; width 3.3-3.6 mm. Brazil
(Rio de Janeiro). October. Two specimens. [| Baris monstrosa Germ.]
monstrosa Germ.
Body slightly more elongate, very bright cupreo-eneous throughout; beak ( 9? )
still shorter and nearly straight, very thick and but little over twice as long
as wide, very densely punctate, setulose and longitudinally substrigose,
opaculate; front with a narrow longitudinal impression joining the shallow
transverse impression at the base of the beak; antenne short, ferruginous
throughout; prothorax (@) nearly as in the preceding but more transverse,
and with a much broader tubulation, this being more than half as wide as
the base; punctures similarly very unequally remote, but distinctly less
coarse; scutellum larger, transversely quadrate; elytra nearly similar but
fully a fourth longer than wide, wider than the prothorax and fully twice as
long; surface rather less strongly undulated; strize very fine and sharply
defined, similarly enlarged at base and apex but, discally, finer than in
monstrosa. Length 6.2-7.0 mm.; width 2.8-3.4 mm. Brazil. Two speci-
mens, from Desbrochers des Loges. [Baridius impressifrons Boh. |
impressifrons Boh.

In monstrosa and impressifrons, the third strial interval is tuber-
cularly tumid at apex; there is no trace of this in chalybea, nor of
the deep discal fovea at each side of the pronotum.

Glyptobaridia n. gen.

This genus is allied rather closely to Baris, but differs in having
the beak separated from the head by a narrow abrupt sulcus. The
body is oblong-oval, convex, coarsely, densely sculptured and sub-
opaque, with erect and bristling sete and narrow erect squamules.
Beak rather short and thick, strongly sculptured, the antenne
slightly post-medial, moderate in length, with rather long first
funicular joint and stout oval club, as long as the three or four

476 MEMOIRS ON THE COLEOPTERA

preceding joints, its first segment fully half the mass, polished and
glabrous. Prosternum nearly flat, moderately separating the coxe,
the posterior lobe wanting, being represented by a broad and feeble
arcuation of the hind margin. Prothorax strongly tubulate, the
basal lobe somewhat prominent, rounded, the scutellum very free
posteriorly but close-set laterally, transversely suboval, the elytra
deeply grooved, with two small feeble undulations near the third
interval, the pygidium small, moderately convex. The type is
as follows:

Glyptobaridia hystrix n. sp.—Body oblong-oval, convex and nearly opaque,
black, the legs not paler; pronotum with the set dark, very coarse and sparse,
those of the elytra pale brown, long and less coarse, mingled with parallel paler
squamules, which are semi-erect and more abundant apically; under surface
with sparse and slender, whitish squamules; beak (2) feebly arcuate, as long as
the prothorax, shining, coarsely punctate and squamo-setulose basally, very
densely just beyond the sulcus, more finely, sparsely punctured and glabrous
distally; antenne slender, piceous, the club rather abrupt; prothorax not quite
a third wider than long, the sides subevenly arcuate from base to the tubulation,
which is half as wide as the base; punctures very coarse but somewhat shallow
and opaque, densely crowded throughout, with a fine uneven subprominent and
polished, impunctate median line; elytra scarcely a fourth longer than wide,
parallel, very obtusely rounded at apex and with very feeble humeral swellings,
slightly wider than the prothorax and three-fourths longer; grooves moderate, a
third or fourth as wide as the intervals, opaquely, contiguously and shallowly
punctate along the bottom, the intervals with coarse and very shallow, confused
subcontiguous punctures; pygidium densely hispido-squamose apically; under
surface coarsely, densely and shallowly punctate and opaque. Length 4.4 mm.;
width 2.15 mm. Brazil (Chapada). December. One specimen.

The first ventral suture is fine but entire, and is strongly arcuate
medially.
Baris Germ.

This is a very large genus, the structural characters of which are
wellknown. The Brazilian species are rather numerous and smaller,
on the whole, than those of more northern regions, agreeing per-
fectly with them however in general structure and habitus. Those
that I now have before me may be described as follows:

Elytral grooves attaining the basal margin; squamiform setz evenly distributed
when. present: —[Subgen. ‘Barts in isp. | seysete cs camiete ee ne arn eee one eae 2
Elytral grooves not attaining the base; elytral squamules fasciiform in arrange-
ment, the surface also undulate and herissate with erect sete. [Subgen.

Baridiaspis’ ‘noValisc. cscs Gye ono ee BSS DD Eee SO Lavoe To strane II
2 Legs rudOUs: cot ceases pe iestibey se 6 den ouage Cree etna Recess eee a etensD eee 3
Legs’ black‘or"piceotis=blackiey (2 = sian otro otoce ati ae el ee nara mer eta 8
3—Body in the neighborhood of 3 mm. in lengthy.........................: 4
Body- notably small oriminutel..5 ae geese oe eee ee ice 5

4—Form elongate-oval, convex, shining and almost completely glabrous, rufo-
piceous in color, with feeble subzeneous lustre, the legs and elytra brighter

BRAZILIAN BARINA 477

rufous; setules of the under surface small and sparse; beak short, thick,
shining, arcuate, finely, sparsely punctulate, two-thirds as long as the pro-
thorax, the antenne medial; prothorax barely a fifth wider than long, the
sides distinctly and subevenly arcuate from base to apex, the latter scarcely
half as wide as the base; punctures fine and sparse, becoming moderately
coarse and rugulosely subconfluent at the sides, without trace of median
impunctate line; scutellum small, rather rounded; elytra a fourth longer
than wide, the sides but feebly oblique, slightly arcuate, the apex very
obtusely rounded, at the feebly tumid humeri slightly wider than the pro-
thorax, three-fourths longer; grooves moderate, not evidently punctate,
becoming ‘coarse and strongly punctate basally; intervals very finely,
sparsely, subserially punctate; pygidium densely cribrate, smaller and nar-
rower in the female; male without distinct abdominal characters. Length
3.25-3.3 mm.; width 1.45-1.5 mm. Brazil (Santarem).. Two specimens.
amazonica n. sp.

Form rather more narrowly oblong-oval, convex, polished, black, with subzneous
lustre and almost completely glabrous, the sparse squamules beneath very
feeble; beak thick, arcuate, shining, finely, not densely punctulate, scarcely
three-fourths as long as the prothorax, the antenne piceo-rufous; prothorax
much shorter, almost two-fifths wider than long, the sides just visibly con-
verging and feebly arcuate, more rapidly rounding anteriorly; apex some-
what more than half as wide as the base; punctures moderate, well separated,
a little less fine, shallow and sparsely subrugulose at the sides; median
impunctate line distinct and entire; scutellum moderate, ogival; elytra a
third longer than wide, circularly rounded behind, with very feebly oblique
sides, at the rather narrowly subprominent humeri evidently wider than the
prothorax, about twice as long; grooves rather narrow, smooth, gradually
a little coarser and moderately punctured basally, exarate at apex; intervals
with sparse infinitesimal punctulation; pygidium moderate, convex; under
surface black, the legs very pale and in strong contrast with the body color.
Length 2.75 mm.; width 1.25 mm. Brazil (Entre Rios). September. One

SSDI pss ta yale ode ayn se (ec se = ikea) a 9) eda aaa a Fo? fulvipes n. sp.
5—Pronotum with or without a very narrow and imperfect median impunctate
Terie ame RR en ctl at eres ces ts Pareto shecacato eiedulle Te Astin vittins lalate reels = ora. 6
Pronotum with a distinctly defined, entire or subentire median impunctate line;
Sire Stell rxutore Gav TUNER ee catty ona cs) Wal =P ekspebaisl w/leled oss > ele inate eis i etal isl 7

6—Body somewhat broadly and very evenly oval, convex, shining, piceous-black,
_ the legs and elytra more distinctly rufous, glabrous above, the slender
squamules of thé under surface sparse; beak moderate, arcuate, very finely,
inconspicuously punctulate and two-thirds as long as the prothorax; antenne
piceo-rufous; prothorax a third wider than long, the sides strongly arcuate,
becoming straighter and subparallel basally and oblique distally; apex
scarcely half as wide as the base; punctures moderate, separated by fully
twice their diameters, rather smaller and feebler but close and subrugulose
laterally; median line narrowly impunctate for a short distance beyond the
middle; scutellum very small, rounded; elytra very evenly parabolic in
outline, scarcely a fourth longer than wide, at the scarcely tumid humeri
slightly wider than the prothorax, almost four-fifths longer; grooves fine,
smooth, very gradually becoming coarse and punctate basally; intervals
alutaceous posteriad, with series of very minute distant punctules; pygidium
tumid medially toward base. Length 2.2 mm.; width 1.1 mm. Brazil
(Chapada). May. One specimen, on AlOWEESH ase -wone sete herifuga n. sp.
Body more narrowly oval, convex, polished and glabrous, dark rufo-piceous in
color, the legs much, and the elytra somewhat, paler; beak shining, minutely,

478

MEMOIRS ON THE COLEOPTERA

sparsely punctulate, strongly arcuate above, straight beneath, three-fourths
as long as the prothorax, the latter between a third and fourth wider than
long, the sides moderately convergent and nearly straight, rounding evenly
in about apical third; apex scarcely half as wide as the base; punctures
moderately coarse, shallow and barely rugulose at the sides, strong but
separated by two or three times their diameters elsewhere, with an oblong
median smooth space at base; scutellum small, ogival; elytra a fourth
longer than wide, rather obtusely parabolic, at the slightly prominent humeri
distinctly wider than the prothorax, not quite twice as long; grooves rather
narrow and shallow, almost smooth, somewhat dilated and more distinctly
punctured near the base; interstitial series composed of distant infinitesimal
punctules; pygidium coarsely, densely punctate and distinctly convex; legs
very short. Length 2.2 mm.; width 1.0 mm. Brazil (Santarem). One
specimen sapparentlyatemalenaners arate cl ckor oi onan sy rane inanis n. sp.

Body a little larger and rather more elongate, oval, polished, glabrous and similar

in coloration, the legs evidently longer and more slender; beak very short,
feebly arcuate, finely, loosely punctate, scarcely three times as long as wide
and barely more than half as long as the prothorax, the antenne concolorous
and obscure rufous; prothorax a fourth or fifth wider than long, the slightly
converging sides feebly arcuate, gradually more so distally; apex a little
less than half as wide as the base; punctures not very coarse, shallow and
well separated at the sides, only slightly smaller but deeper and separated
by two to three times their diameters elsewhere, without trace of regular
median smooth line; scutellum very small, longer than wide and sharply
ogival; elytra oval, moderately obtuse at tip, at the feebly tumid humeri
slightly wider than the prothorax, three-fourths longer; grooves moderately
narrow and deep, nearly smooth, gradually somewhat coarser and more
punctate basally; interstitial series composed of very small punctures,
becoming more distinct, closer and confused throughout toward base;
pygidium moderate, sculptured as usual, gradually becoming prominent
below the middle. Length 2.35 mm.; width 1.1 mm. Brazil (Uacarizal).
February... -One specimenin jes cee eae eee obliviosa n. sp.

7—Form oblong-oval, convex, glabrous, polished and rufo-piceous, the legs but

little paler rufous; beak blackish, moderately thick, feebly arcuate, minutely,
loosely punctulate and almost four-fifths as long as the prothorax; antennz
blackish-piceous, the club obscure rufous; prothorax fully a fourth wider
than long, the sides feebly converging and nearly straight, rather rapidly,
evenly rounding in about apical third to the apex, which is somewhat more
than half as wide as the base; punctures rather large but extremely shallow,
and irregularly well separated at the sides, somewhat small but deep and
separated by three times their diameters discally, the median smooth line
well defined, wide and entire; scutellum as in the preceding; elytra slightly
over a fourth longer than wide, evenly parabolic, at the feebly tumid humeri
distinctly wider than the prothorax, almost twice as long; grooves fine,
nearly smooth, but slightly coarser basally; punctures of the single inter-
stitial series widely separated and so minute as to be seen only with difficulty;
pygidium very densely punctate, subevenly and moderately convex. Length
1.85 mm.; width o.8 mm. Brazil (Santarem). One specimen.

despecta n. sp.

Form rather narrowly oblong-oval, shining, glabrous, evenly piceo-rufous in color,

the legs somewhat paler; beak nearly as in the preceding but scarcely three-
fourths as long as the prothorax, the latter a fourth wider than long, the
sides very moderately but evenly arcuate throughout, becoming subparallel
at base; truncate apex unusually broad, about three-fifths as wide as the

BRAZILIAN BARINA 479

base; punctures rather small but deep, separated by two or three times
their diameters, scarcely differing but more irregular and shallower at the
sides; scutellum minute, rounded; elytra obtusely oval, a fourth or fifth
longer than wide, slightly wider than the prothorax and three-fourths longer;
grooves somewhat narrow, very gradually and but slightly coarser basally;
interstitial punctures fine but evident, in single series; pygidium with the
usual coarse dense punctures, evenly and moderately convex; legs short.
Length 1.75 mm.; width 0.7 mm. Brazil (Entre Rios). September. One
SPECIE TAS HIN Rae ee actin acts) teidhees nit easy ovstais ts flaccida n. sp.

8—Outline notably elongate, the elytra almost one-half longer than wide......9
Outline oval as usual, the elytra nearly always being much less than one-half
longersthanmwid ere. sehcetctets coe citer a ie Sie aie by sca Para taraltiel a yaueycetihcthas 10

g—Form subparallel, with feebly arcuate sides, subglabrous, with minute and
slender squamules beneath and in single line along the strial intervals, black,
the legs and prothorax piceo-rufous; surface polished, the elytra somewhat
alutaceous; beak short, finely but in part rather closely punctate, very
feebly arcuate and scarcely over half as long as the prothorax; under surface
with erect sete distally; antennz near basal third, the scape very short;
prothorax only a fifth or sixth wider than long, the sides subparallel, feebly
arcuate, gradually rounding and oblique in about apical third, the truncate
apex four-sevenths as wide as the base; punctures deep, moderately small,
separated by twice their widths, gradually coarser and rugulosely dense at
the sides, with a distinct narrow smooth line, not attaining base or apex;
scutellum very small, rounded, with a deep central fovea; elytra nearly
one-half longer than wide, barely wider than the prothorax and three-fourths
longer, the sides feebly arcuate and just visibly oblique, the apex obtusely
rounded; grooves almost a third as wide as the intervals, shallow and catenu-
late along the bottom, not coarser basally; intervals with single series of
fine but distinct, not very widely separated punctures; pygidium as usual
in sculpture, strongly convex. Length 3.4mm.; width 1.35mm. Argentina
@lendoza)e *Oneyspecimen® ye) ase ee eee mendozensis n. sp.
Form narrower, the size much smaller, very elongate-suboval, convex, glabrous,
polished, black throughout, the elytra slightly piceous; beak thick, cylindric,
arcuate, finely, loosely punctate and about three-fourths as long as the
prothorax; antennz submedial, with oblique cavernous scrobes as usual;
prothorax short, nearly one-half wider than long, the sides subparallel,
gradually broadly rounding beyond the middle; apex more than half as
wide as the base; punctures rather strong and deep, separated by twice
their diameters, slightly coarser and closer laterally but not dense, without
evident smooth line; scutellum minute, rounded; elytra very nearly one-
half longer than wide, the sides but very feebly oblique, nearly straight, the
apex obtusely rounded, very slightly wider than the prothorax and two and
one-half times as long; grooves moderate, deep, smooth and equal through-
out; interstitial punctures very minute, widely separated in single series;
pygidium convex; legs rather long. Length 2.6 mm.; width 0.9 mm.
Brazil. A single specimen, from Desbrochers des Loges........ opica n. sp.

10—Body rather broadly oblong-oval, strongly convex, deep black, shining and
glabrous throughout; beak thick, arcuate, shining, finely, sparsely punctate
and three-fifths as long as the prothorax, the latter a fourth wider than long,
the sides converging, evenly and distinctly arcuate throughout, gradually
becoming parallel at base; apex half as wide as the base; punctures some-
what coarse, deep, separated by more than their diameters, smaller medially,
coarse, dense and rugose at the sides, with a feebly defined partial smooth
median line; scutellum minute, rounded, feebly impressed; elytra a fourth

480

MEMOIRS ON THE COLEOPTERA

(@) to a fifth (Q) longer than wide, slightly wider than the prothorax and
two-thirds longer; grooves deep, moderately coarse, but little wider basally,
nearly smooth; intervals with series of rather small but distinct punctures,
widely separated but closer and rather coarser Rigs pygidium somewhat
tumid along the median line. oe 2.35-2. a mm,; width 1.0-1.2 mm.
Brazil (Santarem). Two specimens...... ; A .jocosa n. sp.

Body more narrowly oblong-oval, convex, obehed: elnerore aed black, with

scarcely zneous lustre; beak short, thick, finely, sparsely punctate, slightly
arcuate and two-thirds as long as the prothorax, the antenne as usual;
prothorax a fourth wider than long, the sides slightly convergent and feebly
arcuate, becoming oblique and nearly straight in rather less than apical third;
apex half as wide as the base; punctures rather small, separated by two or
three times their diameters medially, coarse but very shallow and contiguous
at the sides, without impunctate line, except in a small oval area behind the
middle; scutellum small, somewhat longer than wide, flat and sharply
ogival; elytra obtusely oval, a fourth longer than wide, slightly wider than
the prothorax and three-fourths longer; grooves deep, moderate in width,
nearly smooth and but little wider basally; intervals two to three times as
wide as the grooves; interstitial punctures somewhat fine but distinct,
variably separated in single series; pygidium small, semicircular and feebly
convex; legs shorter than in the preceding and with thicker and more oval
femora. Length 2.35 mm.; width I.0 mm. Brazil (Santarem). One
SPECIMEN s)-<- co, 6 epainss wists ease Sea Ee eee eae eee defecta n. sp.

Body larger, more oblong and relatively less convex, polished black, the elytra

faintly picescent, glabrous, not definitely submetallic; beak evenly arcuate,
more evenly cylindric than usual, finely, rather sparsely punctate and
scarcely three-fifths as long as the prothorax, the latter two-fifths wider than
long, the sides feebly converging and slightly arcuate, gradually rounding
and oblique in scarcely apical third; apex not quite half as wide as the base;
punctures sparse and very fine, gradually becoming rather strong and irreg-
ular but not very close-set at the sides, without median impunctate line;
scutellum small, as wide as long, very roundly ogival; elytra between a
fourth and third longer than wide, obtusely oval, the sides but slightly
oblique and feebly arcuate, slightly wider than the prothorax and three-
fourths longer; grooves moderate, sensibly broader and feebly crenate
basally; intervals with more or less confused series of minute and well
separated punctures; pygidium obtusely and feebly tumid along the middle
and subumbonate apically; legs moderately long and slender. Length
3.0 mm.; width 1.3 mm. Brazil (Chapada—forest). September. One
SPECIMEN wis Pohl ae dona he Gen eee Oe eee chapadana n. sp.

11—Form oblong-oval, convex, rather shining and deep black throughout, the

pronotal setz erect, those of the elytra erect and brownish, and with less
erect, white squamules condensed for a short space just before the middle of
each interval, these lines forming a transverse fascia; slender whitish squam-
ules beneath sparse; beak thick, arcuate, distinctly but loosely punctate and
four-fifths as long as the prothorax, the antenne medial, with moderate
club; prothorax a fourth wider than long, the sides feebly convergent and
slightly arcuate, more rounding at apex to the short broad tubulation, which
is four-sevenths as wide as the base; punctures rather coarse, deep, still
coarser and contiguous laterally, separated by nearly their widths medially,
with distinct median smooth line, obliterated anteriorly; scutellum well
developed, free and quadrate, punctured centrally; elytra obtusely oval,
a fourth longer than wide, at the slightly prominent humeri evidently wider
than the prothorax, three-fourths longer; surface with two feeble lateral

BRAZILIAN BARINZE 481

undulations; grooves coarse, deep, a little coarser and subpunctate basally;
intervals rather strongly punctate; pygidium small, semicircular, slightly
convex and with erect whitish hairs; abdomen (<”) feebly impressed medially
at base. Length 2.8 mm.; width 1.5 mm. Brazil (Chapada). March.
One Specimens: secs A ead hse oss «Laer ok balteata n. sp.

The species named balteata is made the type of a subgeneric
group, as above, and it is probable that mendozensis should also be
so treated, because of the position of the antenne and brevity of
the scape, together with certain habital peculiarities. In balteata
the transverse elytral fascia is flexed slightly anteriad toward the
suture.

Trogatia n. gen.

In this distinct genus the body is parallel and only moderately
convex, with minute, sparse and decumbent sete, which are very
inconspicuous on the pronotum and under surface and extremely
minute in single series on the elytra. Beak short, cylindric, not
separated by an evident impression, the antenne slightly beyond
the middle, the funicle short, with thick and moderately elongate
basal joint, the club very abrupt, oval, entirely pubescent and as
long as the five preceding joints, the sutures feeble. Prosternum
flat, moderately separating the coxe, with its hind margin feebly
angulate at the middle and having, in the male, two minute acute
tubercles. Prothorax briefly and narrowly tubulate, the basal lobe
very short and broadly rounded, the scutellum small, free, sub-
quadrate and with a broad polished canal, the elytra grooved.
Pygidium well developed, vertical semicircular, nearly flat and very
finely, closely punctate. The legs are normal and slender, the tarsi
slender and with slender diverging claws, very moderate in length.
The type is the following:

Trogatia reversa n. sp—Body perfectly parallel, with straight sides, moderately
shining, black throughout, with red elytra and legs; beak feebly arcuate, rather
closely punctate, longitudinally bisulcate above and two-thirds as long as the
prothorax, the antennz obscure rufous, with ferruginous club; prothorax quad-
rate, about as long as wide, the sides parallel and just visibly arcuate, rapidly
rounding in about apical third to the short tubulation, which is barely half as
wide as the base; punctures moderate, dense and longitudinally rugose at the
sides, separated by between once and twice their widths medially, with a feebly
defined smooth median streak centrally; elytra almost a third longer than wide,
the parallel sides gradually and feebly rounding from behind the middle, about
as wide as the prothorax and two-thirds longer, the humeri small and feeble;
grooves not very deep, moderately coarse, finely, catenulately punctate along
the bottom, attaining the base but not dilated; intervals not very flat, with
single series of moderate, close-set punctures; abdomen very feebly impressed
medially at base. Length 3.35 mm.; width 1.3 mm. Brazil (Santarem). One
specimen.

T. L. Casey, Mem. Col. X, Oct. 1922.

482 MEMOIRS ON THE COLEOPTERA

I can recall no other genus with which this can be closely com-
pared in any way.
Zathanius n. gen.

In this genus the body is rather ventricose, polished and with
sparse, erect sete, the beak thick, strongly compressed and coarsely
sculptured, thicker and more arcuate basally, somewhat tapering
distally, subsimilar in the sexes and separated by a deep reéntrant
angle. Antenna submedian, the scape very moderate, the first
funicular joint as long as the next three, the others slightly trans-
verse, broadening but little, the club large, abrupt, oval, pubescent,
subequally divided by the sutures and as long as the five preceding
joints combined. Prosternum with a shallow but sharply limited
parallel sulcus, the coxze narrowly separated, the intercoxal suture
deep, the posterior lobe very short and broadly rounded. Prothorax
sharply tubulate, the basal lobe very broad and rounded. Scu-
tellum free, transversely oval, sculptured, the elytra sharply and
strongly grooved, the surface smooth, not at all undulate. Pygid-
ium small, vertical, semicircular and prominently convex trans-
versely. First ventral suture fine but evident, angulate medially.
Legs moderately long, normal, the tibiz short, the tarsi narrow,
with small and slender, arcuate and widely free claws. The type is
as follows:

Zathanius lyratus n. sp.—Stout, convex, polished, smooth and deep black
throughout, the upper surface sparsely bristling with short erect setae, remote
and in single lines on the elytra; beak barely longer than the prothorax, strongly
arcuate, thick, strongly compressed and coarsely, closely punctate and rugose,
much more finely punctate and smoother beyond the antenne, which are black;
prothorax small, two-fifths (Q) but scarcely a fifth (o) wider than long, the
sides converging and subevenly, moderately arcuate, the tubulation half as wide
as the base (@), less (o”); punctures rather coarse and sparse, mingled with some
smaller, separated by nearly their widths at the sides, with a centrally broad
median smooth line; elytra a third longer than wide, obtusely oval, at the rather
prominent humeri a fourth to nearly third wider than the prothorax, fully twice
as long (2) or more (co); grooves deep, very smooth, even, the intervals scarcely
twice as wide as the grooves, with single series of small but distinct, remote
punctures. Length 3.6-4.0 mm.; width 1.8-2.0mm. Brazil (Chapada). March
and November. Eight specimens.

Although possibly somewhat allied to the Pseudobarid series, this
genus cannot be associated closely, differing in habitus, in the beak
and especially in the slender tarsal claws, widely separated even
at base.

Euzathanius n. gen.

In general aspect of the body, in the prosternum, sculpture and
other features, this genus would seem to be rather closely allied to
the preceding, and yet the beak, antenne and undulated elytra are

BRAZILIAN BARINA 483

quite different. The body is subrhombic, polished and sparsely
but strongly sculptured, the upper surface with a few erect stiff
sete, arranged as in the preceding genus, the fine setiform decum-
bent squamules of the under surface similar and sparse. The beak
is very thick, slightly arcuate, separated by a deep reéntrant angle
and distinctly but sparsely punctate, cylindric, only slightly tapering
and not in the least compressed. Antenne well beyond the middle,
the first funicular joint nearly as long as the next three, the others
short, setulose, the club abrupt, oval, notably small in size and not
longer than the three preceding joints, its basal segment sparsely
pubescent and half the mass. Prosternum deeply and sharply
canalate, narrowly separating the coxe, the posterior lobe small,
trapezoidal, sinuato-truncate at apex. Prothorax, scutellum, elytra,
legs, tarsi and ungues nearly as in the preceding, except that the
elytral surface is strongly undulate. Pygidium small, semicircular,
evenly and feebly convex. The type may be described as follows:

Euzathanius undulatus n. sp.—Form elongate-subrhombic, black throughout,
smooth and polished; beak very thick, polished, sparsely punctate and distinctly
shorter than the prothorax, the arcuate upper profile descending rapidly at base
to the bottom of the impression; antenne black; prothorax a fourth or fifth
wider than long, the sides feebly converging and straight, rounding anteriorly to
the constriction, the tubulation not so abrupt as in the preceding genus and more
than half as wide as the base, the basal lobe a little more prominent medially;
punctures coarse and smaller sparsely intermingled, separated by two or three
times their width laterally and very irregularly arranged discally, having a broad
smooth medial line and a large oblong area at lateral fourth in basal half, also a
median vacant area connected with the smooth median line; scutellum free,
transverse; elytra one-half longer than wide, the distinctly oblique sides broadly,
evenly arcuate, the apex rather narrowly obtuse, at the large and rather prominent
humeri a third wider than the prothorax, two and one-half times as long; grooves
coarse, deep, finely punctate along the bottom, fully half as wide as the intervals,
which have small and remote punctures in single series; pygidium notably small,
very deeply and densely punctate; first ventral suture wholly obsolete medially.
Length 4.5-4.8 mm.; width 2.1-2.25 mm. Brazil (Chapada). March and
November. Three specimens, apparently female.

It is singular that two species, having so many characters in
common, should have to be assigned to two separate generic groups,
and yet the structural differences in the beak and antennze would
seem to demand this separation.

Thanius n. gen.

The body here is smaller in size, more oblong-oval, glabrous and
without erect setae, smooth, polished and much less strongly sculp-
tured. Beak rather long and slender, sometimes rapidly more
arcuate dorsally at base but not tumid, the separating reéntrant
angle moderate. Antenne distinctly behind the middle, the first

484 MEMOIRS ON THE COLEOPTERA

funicular joint nearly as long as the next three, the second as long
as the succeeding two, the outer joints not materially broadened,
the club abrupt, elongate-oval, pubescent, with feeble sutures and
as long as the preceding five joints. Prosternum broadly but not
very sharply channeled, separating the coxe by about their own
width, the posterior lobe large and broad, feebly sinuate medially.
Prothorax feebly tubulate, the basal lobe small, short and rounded,
the scutellum not very free, medially impressed, subquadrate and
slightly transverse, the elytra moderately grooved, the surface with
two very faint undulations at the sides, and the pygidium small,
rounded and moderately convex. ‘The type is as follows:

Thanius perpolitus n. sp.—Convex, oval, highly polished, smooth and feebly
sculptured, glabrous; beak evidently longer than the head and prothorax, moder-
ately and evenly arcuate, rather slender, coarsely and densely punctate, more
finely and sparsely distad; antenne slender, piceous; prothorax barely a fifth
wider than long, the sides slightly converging and nearly straight, rounding in
apical fourth to the feeble constriction, the oblique tubulation more than half as
wide as the base; punctures fine and sparse, a little coarser but still separated
by about twice their diameters at the sides; median smooth line feeble and partial;
elytra rather obtusely oval, nearly a third longer than wide, at the moderately
tumid humeri slightly wider than the prothorax, fully three-fourths longer;
grooves a third to fourth as wide as the intervals and with widely separated
punctures indenting the sides of the latter, which have single series of widely
spaced and extremely minute punctules; pygidium evenly convex; legs moderate,
the femora slightly thick, the tarsi slender, with long claw-joint. Length 3.3-3.4
mm.; width 1.45-1.5 mm. Brazil (Rio Grande do Sul). Four specimens.

Easily recognizable by the rather smooth and polished, wholly
glabrous surface above and the long, somewhat slender but strongly
and closely punctate beak.

Mesothanius n. gen.

Again a monotypic genus seems to be necessary for a similarly
small, smooth, polished, feebly sculptured but more parallel species,
entirely glabrous above, excepting a small spot of close-set slender
white scales at the base of the third interval, and a few scattered
over the elytral surface, perhaps betraying an affinity with the
Pseudobarid series. The beak is rather short and somewhat thick,
cylindric, feebly separated and finely, loosely punctate; antennz
slightly behind the middle, rather short, the first funicular joint not
quite as long as the next three, the others short, increasing in
width, so that the seventh is almost as wide as the club, which is
short, oval, as long as the four preceding joints, with its basal
segment sparsely pubescent, large and constituting more than half
the mass. Prosternum short, with a deep and sharply defined
canal, continued by shallow concavity between the coxe and

BRAZILIAN BARINA 485

throughout the posterior lobe, which is narrow, prominent, distinctly
concave, with its apex deeply and semicircularly emarginate and
having rather sharp angles, the coxe separated by slightly less than
their width. Prothorax constricted and tubulate at apex, the
basal lobe short, gradual and narrowly rounded, the scutellum
closely fitted, wider than long, ogival and sinuate at base, the
elytra grooved, not undulate and the pygidium well developed,
semicircular, feebly convex and with deep separated punctures.
Legs moderate, the anterior femora deeply sinuate beneath near
the apex, the tarsal claws slender, well separated and divergent.
The type is the following:

Mesothanius emarginatus n. sp.—Elongate-suboval, convex, deep black and
polished throughout; beak a little shorter than the prothorax, feebly arcuate,
the antenne piceous; prothorax a third wider than long, the sides feebly con-
verging and nearly straight, rounding slightly only at the constriction, the tubu-
lation four-sevenths as wide as the base, the basal angles rounded; punctures
moderate, sparse, coarse but separated by their own widths laterally, wholly
wanting toward base except at the sides, the median impunctate area not well
defined; elytra a third longer than wide, not quite parallel, rapidly obtusely
rounded at apex, evidently wider than the prothorax and more than twice as
long, the humeral swellings very feeble; grooves and intervals nearly as in the
preceding species. Length 3.3 mm.; width 1.35 mm. Brazil (Petropolis).
Desbrochers des Loges. One specimen.

The remarkable prosternum and, especially, its posterior lobe,
will render the identification of this genus quite certain.

The four preceding genera constitute a group, the Thaniids,
analogous, among the genera with well separated and diverging
ungues, to the Pseudobarids, which always have connate or contig-
uous claws.

Baptobaris n. gen.

The size of the body is much greater in the present genus than
in any of those immediately preceding, including Glyptobaridia, and
is elongate, parallel and usually, but not always, with distinctly
undulate elytra. The beak is short, thick, strongly arcuate and
strongly and closely but discretely punctate, the antenne rather
behind the middle, with the outer funicular joints broader, the
club ovoidal, somewhat compressed and with more or less oblique
sutures, the basal segment less than half the mass and glabrous.
Prosternum with the channel impressed, deep, but not very sharply
defined at the sides, the coxze moderately separated and the posterior
lobe truncate or feebly sinuate. Prothorax feebly tubulate, the
basal lobe in the form of a very short and gradually formed obtuse
cusp, the scutellum free and quadrate, the elytra grooved and the
pygidium moderate, usually nearly flat, with more or less evident

486 MEMOIRS ON THE COLEOPTERA

carina and somewhat oblique. The legs are normal and moderate.
There are five species of this genus now known to me as follows:

Body unitormly, ferruginous in colorabove.. 4. «2... ea. ee eee eee 2
Body above bicolored, the prothorax rufous, the elytra metallic blue or green.. .3
2—Form elongate, parallel, convex and shining, glabrous, the head, beak, under
surface and legs deep black; beak thick, very strongly arcuate, not at all
compressed and not quite as long as the prothorax; antenne shining, black-

ish; prothorax a third wider than long, the sides feebly converging and
nearly straight, rounding anteriorly to the gradual tubulation; punctures
strong, remote, laterally coarse and well separated, the median smooth line
broad and entire; elytra three-fifths longer than wide, evidently wider than

the prothorax and two and one-half times as long, parallel, obtusely rounded

at apex, distinctly undulated; grooves moderate, basally coarser, more im-
pressed and punctate, coarse and deep apically; intervals with single loose
series of very minute punctures. Length 8.0-9.0 mm.; width 3.4-3.75
mm. Brazil (St. Catharina and other localities). Six specimens. [Barid-
qusicarnipex: BOUs||hee ere 8a. 8 5. hee eee eee ee eee carnifex Boh.
Form much less elongate, oblong-suboval, convex, moderately shining, glabrous,
the beak, legs and entire under surface deep black; beak straight beneath

in profile, broadly arcuate above, thick, closely, not very coarsely punctate
and very short, not three-fourths as long as the prothorax; antenne nearly
black; prothorax a fourth to nearly third wider than long, the sides con-
verging and very feebly arcuate, rounding anteriorly to the scarcely at all
tubulate apex, which is much less than half as wide as the base; punctures
rather small, sparse, becoming notably coarse and subcontiguous at the
sides, the median smooth line not well defined; elytra oblong, not one-half
longer than wide, a fourth or fifth wider than the prothorax and distinctly
more than twice as long; grooves strong, a little coarser basally and much
coarser distally; intervals with single series of moderate, deep and somewhat
close-set punctures. Length 5.75-6.2 mm.; width 2.9-3.0 mm. Brazil
(Theresopolis). Two specimens. [Baridius exaratus Boh.]. ..exarata Boh.
3—Body throughout above and beneath uniform pale rufous, excepting the elytra,
which are black, with strong violet-blue lustre. Glabrous and shining, the
beak rather thick, cylindric, strongly arcuate, somewhat strongly but loosely
punctate and three-fourths as long as the prothorax; antenne piceous, the
club only as long as the three preceding joints; prothorax barely a fifth
wider than long, the sides converging and straight, rapidly rounding in apical
fourth, the tubulation subobsolete; punctures rather small but deep, remote,

a little coarser but widely separated at the sides, with a distinct smooth
median line; scutellum slightly wider than long; elytra nearly one-half
longer than wide, distinctly wider than the prothorax and somewhat over
twice as long, parallel, obtusely rounded at apex; grooves rather narrow,
punctate, coarser basally and slightly coarser apically; intervals with minute
sparse punctures, more or less confused in arrangement. Length 7.0 mm.;
width 3.2 mm. Paraguay. One specimen. [Baris sanguinicollis Germ.]
sanguinicollis Germ.

Body black, with metallic reflection beneath, the prothorax rufous throughout,
the elytraidark,, metallica Wes o55, see Gore eres tice eee 4
4—Form oblong, convex, polished and glabrous; beak (co) very short, straight
beneath, arcuate above, strongly, densely punctate and only three-fifths as
long as the prothorax, or (2) strongly, evenly arcuate, cylindric, more finely

and loosely punctate and three-fourths as long as the prothorax; antenne
piceous, the club smaller and shorter in the female; prothorax fully a fifth

BRAZILIAN BARINA 487

wider than long, with very feebly converging and nearly straight sides
broadly rounding in apical third, becoming sinuously oblique; punctures
fine, remote, becoming somewhat coarse but widely separated at the sides,
the smooth line not well defined and abbreviated; scutellum very moderate,
subquadrate; elytra fully one-half longer than wide, much wider than the
prothorax and between two and three times as long; grooves deep, especially
toward base and apex; intervals sometimes rather convex, minutely punctate
in single series; legs, head and beak black, with more or less metallic lustre;
male abdomen feebly impressed medially at base, the fifth segment minutely
bisinuate at the middle of the hind margin. Length 6.0-6.8 mm.; width
2.7-3.0 mm. Brazil (the locality not stated). Five specimens, received
from Desbrochers des Loges. [Baridius ruficollis Boh.]...... ruficollis Boh.
Form and coloration nearly similar but much smaller in size, polished and glabrous;
prothorax bright rufous throughout, the head, beak, legs and under surface
of the hind body black, the last two with feeble bluish lustre, the mesosternum
and tibiz piceo-rufous; elytra black, with bright greenish-blue lustre; beak
(co) evenly cylindric, finely, loosely punctate, evenly, moderately arcuate
and nearly three-fourths as long as the prothorax; antennz black, piceous
basally; prothorax a fourth wider than long, the sides feebly convergent
and slightly arcuate, rounding and oblique in apical fourth; punctures
strong but sparse, becoming coarse but distinctly separated at the sides, the
smooth median line abbreviated; scutellum quadrate, deep black; elytra
one-half longer than wide, a fourth wider than the prothorax and much
more than twice as long, parallel, very obtuse at apex, with large and feebly
tumid humeri; grooves deep, a little coarser basally and very much coarser
apically, feebly crenately punctate; uniserial interstitial punctures minute
and widely separated; pygidium flat, coarsely cribrate; male abdomen with
a very feeble median impression at base, the fifth segment with two minute
emarginations, separated by a broad lobe. Length 5.25 mm.; width 2.4
mm. Brazil (Rio de Janeiro). November. One specimen...compta n. sp.

The male abdominal characters throughout are of the same order
as in ruficollis and compta, as described above.

Orthobaridia n. gen.

In this genus the body is rather small in size, parallel, moderately
convex, shining and glabrous. Beak short, thick, not evidently
compressed, straight beneath, broadly arcuate above in profile, and
separated from the head by a deep reéntrant angle. The antenne
are at apical third, the club oval, pubescent, about as long as the
three or four preceding joints, with moderate sutures, the first
segment two-fifths of the whole. Prosternum shallowly and not
very sharply sulcate, the coxe moderately separated and the
posterior lobe rather prominent but rounded. Prothorax without
vestige of anterior constriction or tubulation, the basal lobe small,
gradual and cuspidiform, the scutellum free, transversely oval and
the elytra with coarse impressed striz and convex intervals. Pygid-
ium peculiar, being small, transverse, strongly, loosely punctate,
feebly convex and oblique, but with the obliquity inward, so that
it is wholly invisible from above. Legs simple, rather short, the

488 MEMOIRS ON THE COLEOPTERA

tarsal claws very slender, widely free and divergent. The type is
the following:

Orthobaridia sulcatula n. sp.—Parallel, with nearly straight sides, glabrous,
black, the elytra faintly piceous; beak (o”) three-fourths as long as the prothorax,
finely, closely punctate above and, on the head, more finely and sparsely punctu-
late; antennz obscure ferruginous; prothorax quadrate, fully as long as wide,
the parallel sides feebly arcuate, rounding and becoming strongly oblique in
about apical third, the narrow truncate apex much less than half as wide as the.
base, the basal angles rounded; punctures fine but distinct, separated by two or
three times their width, a little coarser and longitudinally subrugulose at the
sides; median smooth line distinct but not attaining the apex; elytra nearly
one-half longer than wide, very slightly wider than the prothorax, the sides
parallel and straight, slightly oblique at base, without humeral swelling, gradually
rounding apically, the apex narrowly obtuse; striz very coarse and deep, im-
pressed, not groove-like and coarsely, closely punctate; intervals barely wider
than the striz and convex, with infinitesimal sparse punctulation; male abdomen
with a sharply defined subquadrate concavity medially at base. Length 3.6
mm.; width 1.4 mm. Brazil (Santarem). One specimen.

The deep and coarse, impressed elytral sulci and convex intervals,
parallel form of the body, thick beak, with subapical antenne and
form of the thoracic apex, are characters which will serve readily
to identify this aberrant species.

Dalcesia n. gen.

In general habitus the body in this genus is notably isolated, and
I know of nothing with which it can be compared very closely.
It is cylindric, shining and glabrous, the prothorax conspicuously
small, parallel and narrowed apically. The beak is moderately
thick, feebly arcuate, equal throughout, compressed and separated
by a small reéntrant angle. Antenne medial, short, the club
oblong-oval, as long as the four preceding joints, coarsely pubescent
and subequally divided by the strong sutures. Prosternum very
shallowly sulcate, the depression somewhat sharply defined, the
coxe narrowly separated and the posterior lobe short and broadly
rounded. Prothorax without trace of apical constriction or tubu-
lation, broadly arcuate basally except near the sides, but without
lobe, the scutellum relatively large, slightly free, flat, subquadrate,
angulate behind, densely punctulate and with close narrow squam-
ules, whitish in color but not conspicuous, the elytra finely and
smoothly grooved. Pygidium small, rather transverse, vertical,
its sides oblique and the apex narrowly truncate. The legs are
moderate, the tarsi notably slender, with free arcuate claws. The
type may be described as follows:

Dalcesia calvata n. sp—Form oblong-subcylindric, the elytra only moderately
convex, deep black and shining; under surface with fine sparse squamules; beak

_ BRAZILIAN BARINA 489

rather thick, compressed, finely, closely punctate and as long as the head and
prothorax; antenne obscure rufous; prothorax small, as long as wide, the sides
parallel and straight to beyond the middle, then oblique and almost straight to
the apex, which is two-thirds as wide as the base; punctures fine and sparse, a
little coarser, closer and bearing small sparse squamules at the sides; elytra
one-half longer than wide, fully two-fifths wider than the prothorax and more
than two and one-half times as long, the sides perfectly parallel and straight,
circularly rounding in posterior third, the humeri distinct but not at all swollen;
grooves fine, even, sharply defined, finely punctate and a fourth or fifth as wide
as the intervals, which are virtually smooth. Length 2.8 mm.; width 1.15 mm.
Brazil (Rio de Janeiro).

Of this interesting species I have seen but a single specimen
which appears to be the female.

Attangus n. gen.

The type of this genus is among the larger Brazilian Barids; the
body is polished, glabrous, subparallel in outline and with long
arcuate and gradually tapering beak, separated by a very feeble
depression of the surface; it is compressed, opaculate and strongly,
loosely punctate basally, elsewhere smooth and minutely, remotely
punctulate and, toward apex, is slightly flattened. Antenne sub-
medial, rather long’and slender, the first funicular joint much
elongated, as long as the next four joints, the second as long as the
succeeding two and the others transverse, gradually increasing in
width, the club somewhat gradual, oblong-ovoidal, densely pubes-
cent, as long as the four preceding joints and subequally segmented
by the feeble and obscure sutures. Prosternum deeply and sharply
canalate, the coxe separated by nearly two-thirds their width, the
intercoxal suture post-medial and the posterior lobe long, narrowed
basally and broadly sinuate at apex. Prothorax strongly tubulate
at apex and with small but prominent, apically obtusely subangulate
basal lobe, the scutellum free, moderate, slightly transverse and
with angulate apex, the elytra scarcely undulated and with very
fine, subobsolete and finely punctulate strie. Propygidium oblique,
largely exposed in the male type, opaculate and medially carinulate,
the pygidium rather large, vertical, very strongly, evenly convex,
polished and finely, sparsely punctate. The legs are well developed,
the femora slightly swollen, the tarsi long and slender, with stout
and free, diverging claws. The only known species is the following:

Attangus caudalis n. sp.—Parallel, convex, polished, glabrous and very feebly
sculptured, deep black throughout; beak (<”) strongly, evenly arcuate, fully as
long as the prothorax; antenne rufo-piceous; prothorax quadrate, as long as
wide, the sides parallel and nearly straight, gradually rounding from slightly
beyond the middle to the tubulation, which is distinctly less than half as wide as
the base; punctures small but distinct, sparse, almost obsolete broadly toward
base, well separated at the sides; elytra nearly three-fifths longer than wide,

490 MEMOIRS ON THE COLEOPTERA

at the broadly swollen humeri nearly a fourth wider than the prothorax, distinct-
ly more than twice as long, the sides feebly oblique, gradually arcuate behind,
the apex obtusely rounded; striz very fine,.obsolete suturally, evident toward
the sides, finely punctulate; intervals smooth; male abdomen with a very shallow
impression medially at base, the bottom of the impression with a fine and feeble,
impressed axial line; margin of the fifth segment perfectly even and transverse.
Length 8.8 mm.; width 3.7 mm. Brazil (probably from Rio de Janeiro).

There is but one specimen of this singular species in my collection,
and it was received from Desbrochers des Loges under the name
“ Baridius niger Dej.?”’ It is possibly described of course, but I
cannot identify it.

Anopsilus Kirsch

The pygidium in this genus is very short and transverse, re-
sembling that of certain Madopterids, in which tribal group it was
placed by itsauthor. The glabrous body, however, is quite different
in its elongate-oval outline, from the very extended slender parallel
forms constituting the next tribe here considered. The beak is
moderately thick, feebly arcuate, slightly impressed along the sides
basally and separated from the head by a feeble impression. An-
tennze moderate, slightly beyond the middle, with long and feebly
oblique- scrobes, the first funicular joint as long as the next
two, the second somewhat longer than the third, the outer joints
transverse and gradually wider, the club oval, densely pubescent,
as long as the three or four preceding joints and with the first
segment two-fifths of the mass. Prosternum with a deep canal,
limited by obtuse ridges, the coxe narrowly separated and the
posterior lobe very short and broadly rounded. Prothorax con-
stricted and obliquely tubulate at apex and gradually feebly sub-
prominent medially at base, the scutellum rather close-set, sub-
quadrate and the elytra extremely finely and obsoletely substriate.
Legs moderate, the claws arcuate, free and divergent. The two
species at hand are as follows:

Body elongate-oval, glabrous and shining, deep black throughout; beak (<)
rather thick, feebly and evenly arcuate, finely, loosely punctate and as long
as the prothorax; antenne piceous; prothorax a sixth wider than long, the
sides feebly converging and slightly arcuate, rounding in about apical fourth,
the feeble tubulation scarcely half as wide as the base; punctures very fine,
moderately sparse, scarcely differing at all at the sides, the smooth median
line extremely narrow but subentire; elytra four-sevenths longer than wide,
at the feebly tumid humeri a fifth wider than the prothorax, nearly two and
one-half times as long, the sides feebly oblique and evenly arcuate, the apex
somewhat rapidly obtuse; stria fine, almost completely obsolete and finely,
feebly punctulate, the stria not more distinct at the sides and scarcely so
at apex; pygidium with a fine transverse raised line and more sloping upper
surface; male abdomen with a moderate and rather deep median impression
at base, the fifth segment with a small shallow central impression. Length
6.0 mm.; width 2.7mm. Brazil (Petropolis). Desbrochers des Loges.

brevicauda n. sp.

BRAZILIAN BARINAE 491

Body smaller, elongate-oval, glabrous, polished and deep black throughout;
beak (o7) longer and less thick, evenly, moderately arcuate and as long as
the head and prothorax, rather finely and sparsely but deeply punctate;
antenne piceous, slightly beyond apical third, more slender than in the
preceding, the funicular joints barely wider distally, the club nearly similar,
relatively small in size; prothorax a sixth wider than long, the sides more
strongly but broadly arcuate, becoming gradually subparallel and straighter
basally, the feeble short tubulation less than half as wide as the base; punc-
tures fine but deep, sparse, scarcely differing at the sides, the median line
almost similar; scutellum distinctly free, wider than long; elytra four-
sevenths longer than wide, at the feebly tumid humeri a fifth wider than the
prothorax, two and one-half times as long, the sides more oblique, broadly,
evenly arcuate, the apex more strongly, evenly rounded; striz very different,
in the form of narrow and sharply defined smooth grooves, obsolete posteriorly
and laterally and there replaced by scarcely impressed series of small distinct
punctures, somewhat deeply grooved inside the feeble subapical umbones;
pygidium similar, the transverse carina even more distinct; male abdomen
with a small shallow impression at the centre of the first ventral, that of the
fifth transversely oval and very shallow. Length 5.6 mm.; width 2.5 mm.
Brazil (Santatem) ms "Onerspectmene, ai. 0. 4 2 vay oe aac sa striatus n. sp.

The first of the above species resembles bonvouloiri Kirsch, the
more closely, but differs in its shorter and thicker beak, shorter and
broader thoracic tubulation and in the male modification of the
abdomen, the basal impression being much smaller, deeper and
more definite. |

Balbus Pascoe

This genus is considered synonymous with Anopsilus by Mr.
Champion, but, though extremely closely allied, there are some
characters that seem to warrant a distinction. The general aspect
of the body, for example, is quite different, due to the rhombic
outline and the evenly conical non-tubulate prothorax of conicollis
Boh., the type of Balbus; the pygidium is not quite so short or
transverse, being circularly, though broadly, rounded beneath, but
it has a similar transverse carina, though much nearer the base.
The antenne are nearly similar in form and position and the beak
has a similar impression along the sides basally. The prosternum
is nearly similar, but the sides of the sulcus are tubercularly prom-
inent at the middle in the male. The legs and claws are almost
similar, but the tibia are longer. The type is the following:

Balbus conicollis Boh.—Elongate-rhomboidal, deep black, polished, glabrous
and extremely feebly sculptured; beak (‘o) moderately thick, somewhat longer
than the head and prothorax, very feebly arcuate, more so distally, rather finely
but deeply, loosely punctate; antenne at three-fifths, piceous; prothorax a
perfect cone, about as long as wide, the sides barely visibly arcuate; apex only
three-sevenths as wide as the base, which is very feebly and gradually arcuate
medially; punctures extremely minute, feeble and remote, scarcely discoverable
and not differing at the sides; scutellum free, convex, smooth and transversely
quadrate; elytra fully two-thirds longer than wide, at the rather prominent

492 MEMOIRS ON THE COLEOPTERA

humeri a fourth wider than the prothorax, two and one-half times as long, the
sides oblique, feebly arcuate, the apex rapidly and obtusely but not very broadly
rounded; surface very smooth, with strong subapical umbones, prominent second
and third intervals at apex and a concavity between these and the umbones;
striz very fine and almost completely obsolete, impunctate; male abdomen with
a deep elongate impression medially toward base, the fifth segment not at all
impressed, minutely, sparsely punctate. Length 7.8 mm.; width 3.3 mm.
Brazil (Rio de Janeiro). October. One specimen. [Baridius conicollis Boh.]

I had already assigned these two genera to the end of the series,
where they might form one of the passages to the Madopterini,
long before consulting the original description of Kirsch, and it was
therefore a source of gratification to find that the author had actually
assigned Anopsilus to the Madopterini.

Tribe MADOPTERINI

In this tribe I have united the Nertids and Madopterids of
Lacordaire, which have the body peculiarly elongate and more or
less parallel and therefore, in habitus alone, remarkably different
from anything observable in the other tribes of the subfamily;
some of them have the pygidium exposed, and a few have this part
completely covered by the elytra, and the prosternum is transversely
truncate behind, or at least never with distinct posterior lobe. It
would be very difficult to find a satisfactory place for these elongate
parallel forms among the Centrinids or Barids, and this is the prin-
cipal reason for associating them to form a special tribe at the end
of the series—no more heterogeneous in regard to the pygidium
than the Madarini, where that part may be wholly concealed,
though generally exposed. In the structure of the prosternum
they more closely resemble the Barids or Sonnetius, than any of
the Madarids. Unfortunately there are rather numerous described
genera which do not seem to be represented in my collection, such as
Nertus, Lichnus, Lispodemus, Parallelosomus and Trachymerus, and
I am therefore compelled to omit these in the following comparative
statement:

Pygidium distinctly exposed behind the elytra, though usually short, never
PLOMIMEME OF StLOMPIY.CORVEX.4 5... oils ass as Leste seg aa: ERA 2
Pysidimncoveredabyatherehyttee sci. cos ss <x +2 Sew Se see Cee eee 6

2—Anterior femora bifurcate at apex, the lower ramus narrower and curved,
becoming parallel, sometimes subobsolete and replaced by a simple distal
inferior tooth, the other femora nearly always minutely denticulate beneath.
Body very elongate but not quite parallel, convex, glabrous or sparsely
squamose above; beak slender, moderately long, sometimes deeply and
peculiarly constricted above near the base and also below but less basally;
prosternum long, not modified, the coxe large, more or less narrowly sepa-
rated; antennz rather long and slender; tarsal claws connate. [Type P.
CASLOFIUSSNOVENS a) do RE ee eee eres a ene Pacomes

BRAZILIAN BARINZE 493

Anterior femora simple, never even denticulate beneath, the others also mutic..3

2— Bodyrelatsnostabovessreey camer ees ois see conten eran see wine thous Sos aes 4
Body squamose, exactly and rectilinearly parallel, the prothorax subquadrate;
antennal scape long; prosternum rather short, flat, truncate behind.......5

4—Antennal scape very short. Body parallel, coarsely sculptured; beak short,
somewhat thick, cylindric and arcuate; antenne behind the middle, moder-
ately long, the club small; prosternum rather short, flat, moderately sepa-
rating the coxe, the entire hind margin truncate; prothorax not tubulate,
the basal lobe subobsolete; scutellum small; elytra deeply grooved; legs
short, the claws free. [Type P.rubricollis nov.]............. Paralichnus
Antennal scape long. Body parallel but with conical prothorax, feebly sculptured;
beak short or moderate, more or less thick; antenne beyond the middle,
more or less short, the club narrowly oval as a rule; prosternum unmodified,
the coxze almost contiguous; hind margin feebly arcuate at the middle;
scutellum moderate; elytra very feebly or obsoletely striate; legs long and
very slender, the claws free. [Type M. talpa Gyll.].......... Madopterus

5—Beak slender, nearly straight, cylindric, not tapering and not separated from
the head by an impression; antenne submedial, slender, the first funicular
joint as long as the next three, the club small, oval; prosternum narrowly
separating the coxe, its surface tumid at the middle behind them; prothorax
subquadrate, not tubulate, the basal lobe small and almost obsolete; elytra
coarsely striate; pygidium notably short; tarsi rather inflated, the claws
connate! ([iyperS.emniscatus Bohs] i.) es oo Strongylotes
Beak not so slender, perfectly straight and less vertical, feebly tapering from
base to apex; antenne nearly similar; prosternum separating the coxe by
fully half their width, flat and not at all tumid medially posteriad; prothorax
sometimes very briefly and feebly tubulate at apex, transversely truncate at
base and somewhat conspicuously inflated at the sides beyond the middle;
elytra nearly similar, the pygidium larger, twice as wide as long and circularly
rounded; anterior tarsi more dilated, the claws free but close. [Type JN.
(OF HOU ON SES! TCONTA | Shehes cea eee eaL LG ENO Che, EIR areal iced, NOR iene NSE Neobaridia

6—Body very slender, parallel and linear, squamose above; beak short, slender,
cylindric and slightly arcuate, not separated by an impression; antenne
somewhat behind the middle, the first funicular joint as long as the next
three, the club small, narrowly oval; prosternum flat, narrowly separating
the coxe; prothorax elongate, truncate at apex and with small and feeble
basal lobe; elytra nearly as in Strongylotes: tarsi moderate, the claws free.
Ry pen GOV INATICAMONA Ne Gee On ce heiress cele ant one Camopis
Body rather broad, oblong, parallel, nearly glabrous above; beak straight, longer,
more slender and dorsally bisulcate basally (9), less slender and simply
cylindric (o); antennze submedial, slender, the first two funicular joints
elongate, the club small and narrowly oval; prosternum evenly and feebly
convex, separating the cox by more than half their width, truncate behind;
prothorax non-tubulate, with very small basal lobe; elytra strongly striate;
tarsi rather slender, the claws free. [Type C. rectirostris nov.]...Canopinus

Canopinus seems at first to be very inharmonious among the
other genera, because of its much more abbreviated form of body,
but its structural characters place it in the present tribe, where it
may perhaps be compared, in some features at least, with Parallel-
osomus. Sexual divergencies appear to be very slight in most of
the genera, though very evident in the beak of Canopinus.

494 MEMOIRS ON THE COLEOPTERA

Pacomes n. gen.

In this remarkable genus the body is subparallel, convex, feebly
sculptured and apparently with scarcely any special modifications
due to sex. The beak is rather long, feebly but subevenly arcuate,
gradually and very slightly tapering, with small decussate mandibles
and separated from the head by a narrow impression, this being
wholly distinct from the deep irregular subbasal constriction of
distortus and ramtfer. Antenne in the type rather long and slender,
slightly beyond the middle, the scape moderately long, but only
extending to the inferior subbasal constriction, the funicular joints
all more or less elongate and swollen at apex, the first not quite as
long as the second but thicker, the second not quite equal to the
next two, the outer joints with oblique coronz of long oblique:
bristles, the club elongate-suboval, narrow, as long as the three
preceding joints, its first segment elongate-obconic, fully three-
fifths the total length and gradually more sparsely pubescent
basally, the remainder conoidal, with moderate sutures. Proster-
num long before the coxe, evenly convex in transverse section and
separating the coxz by less than a third their width, truncate at
base, the short intercoxal suture deep. Prothorax elongate, conical
in distal half, not evidently tubulate and with the truncate basal
margin broadly and feebly arcuate medially, the scutellum moderate,
quadrate and free. Elytra transversely impressed or exarate at
base, coarsely exarate at apex, with just visibly tumid humeri and
feeble subapical umbones, the striz diversified. Pygidium well
exposed, flat, vertical, semicircular and fully twice as wide as long.
Legs long and slender, the anterior femora longer than the others,
apparently in both sexes; tarsi dilated, the claws small. The four
species now before me are as follows:

Anterior femora bifurcate at apex, the lower ramus more slender, curved and

2) Uh cel P< ene eerie ens eh ASS aS, oo Aina Eee Ia AA Sao a oaa % 2
Anterior femora not bifurcate, but with an acute tooth at apical fourth; upper
surface and elytral striation virtually as in distortus...................5- 4

2—Body sparsely squamose above, more densely at the sides of the prothorax,
the under surface’ more or less closely squamose, the hind body finely and
sparsely, except the densely scaly met-episterna; elytral strie very coarse
and deeply impressed. Integuments somewhat shining, piceous, the elytra
more nearly black; beak (o' @) slender, rather long but evidently shorter
than the prothorax, moderately and loosely punctate, constricted only
moderately and solely on the under surface at basal third, not separated
from the head by trace of impression; antenne at apical third to two-fifths,
the first segment of the club only a little more than half the length; pro-
‘thorax very long, four-sevenths to two-thirds longer than wide, the sides
parallel and feebly arcuate in about basal half, thence converging and slightly
arcuate to the feebly constricted apex, which is evidently more than half as
wide as the base; punctures rather strong but sparse, the smooth biabbre-
viated median line feebly subprominent; scutellum small, very free and

BRAZILIAN BARINA 495

quadrate; elytra evidently less than three times as long as wide, equal in
width to the prothorax and but little more than one-half longer; sides
parallel, rapidly rounding but not obtuse at apex; uneven yellowish scales
large but slender, very sparse; striz coarse, deep, not very even, with rather
coarse punctures, each inclosing a shorter scale; intervals slightly convex,
with single series of moderate and very remote punctures; abdomen with
the first suture very fine and subobsolete, the last three conspicuously coarse
and deep; pygidium apparently a little longer in the male; lower tibial
ramus spiniform, porrect, extending beyond the tibial tip. Length 9.5~-9.8
mm.; width 2.3-2.4 mm. Brazil (Santarem). Two specimens.
spinifer n. sp.
Body glabrous above; prothorax less elongate; elytral strie very fine and sharp,
having moderate but deep and well spaced punctures, which are much wider
than the strie and crenulating the sides of the intervals................. 3

3—Form elongate and convex, feebly narrowed posteriorly from the base of the
elytra, rufo-piceous in color and polished, the prothorax alutaceous; medial
line of the prosternum, intercoxal part of the mesosternum and the met-
episterna clothed with more or less dense yellowish scales; beak (9) a little
longer than the head and prothorax, moderately slender, finely, loosely
punctate, alutaceous, compressed behind the antenne, feebly arcuate, the
upper constriction at basal sixth bordered anteriorly by a small tubercle,
the lower, at basal fifth, deep and oblique; between the latter and the base
there is a large excavation at each side; antenne at four-sevenths, the scape
extending to the lower constriction, the remainder as described above;
prothorax one-half longer than wide; sides feebly arcuate, oblique anteriorly,
parallel in about basal half, the apex half as wide as the base; punctures
minute and sparse throughout, the median line not clearly impunctate but
feebly prominent by laterally oblique light; scutellum quadrate, slightly
convex; elytra about two and one-half times as long as wide, at the feebly
tumid humeri equal in width to the prothorax, nearly three-fourths longer,
the sides slightly oblique and nearly straight, gradually rounding behind;
striz extremely fine but sharp, with the punctures strong, deep and moder-
ately separated, deeper in the transverse basal concavity and very coarse
and deep posteriorly; single interstitial series composed of distant infinites-
imal punctures; pygidium flat, twice as wide as long and circularly rounded,
densely punctate; lower ramus of the anterior tibiz cylindric, not acute as_
in the preceding species, extending as far as the femoral tip; tibiz elongate,
feebly sigmoid; terminal oblique concavity of the posterior deeply cleft on
the inner side. Length 9.3 mm.; width 2.35 mm. Brazil (Santarem). One
SPECLMETIM mR OR Rone bar prereset eles mca esa Ep ec orci Ea distortus n. sp.

Form, color, lustre and vestiture of the under surface as in the preceding, the
body smaller in size and more slender, still smaller in the female; beak
nearly similar, a little shorter in the female; prothorax shorter, two-fifths
(@) to three-sevenths (<) longer than wide, similar in outline, but with
the sides anteriorly more strongly oblique; sculpture similar; elytra also
similar, except that the basal impression is feeble and does not extend so far
toward the humeri, and the strial punctures are smaller; abdomen similar
in the sexes, strongly convex along the middle as usual; pygidium (<7)
nearly as in the preceding but more convex and with a large median con-
cavity, or (2) similar in outline but rather smaller and more transverse,
with its surface even and flat; legs almost as in the preceding in both sexes.
Length 7.4-8.5 mm.; width 1.7-1.9 mm. Brazil (Santarem). Three
SPECIMEN Smee he ere eet ir a ENE cat meer awe enone | ramifer n. sp.

496 MEMOIRS ON THE COLEOPTERA

4—Body brownish-rufous, the general outline, convexity, lustre, sculpture and
scales of the under surface as in the two preceding; beak quite different,
more slender, evenly cylindric from base to apex, not constricted near the
base, evenly and moderately arcuate, polished and subimpunctate and very
much longer than the head and prothorax in both sexes; antennz rather
long, slender and submedial, nearly similar in structure; head with a trans-
verse fovea between the eyes at the base of the beak; prothorax a third to
two-fifths longer than wide, the sides feebly arcuate, parallel in basal, and
feebly oblique in apical, half; apex much more than half as wide as the base;
punctures very minute and remote throughout; scutellum smaller, narrowed
toward base, shining and shallowly concave; elytra rather more than two
and one-half times as long as wide, at the humeri just visibly wider than the
prothorax, about twice as long; sides barely visibly oblique, very gradually
arcuate and convergent posteriad to the very narrowly obtuse apex; surface,
striae, punctures and intervals throughout very nearly as in distortus, the
intervals relatively less broad; pygidium semicircular and feebly convex,
finely, not very densely punctate; legs slender and of the usual structure,
except that the anterior femora do not have the lower ramus near the apex,
but a small acute tooth in the same position. Length 7.4-7.8 mm.; width
1.85-2.0 mm. Brazil (Chapada—forest). November. Three specimens.
subglaber n. sp.

In the smallest of the three specimens of subglaber, the pygidium
seems to be a trifle smaller than in the other two, and this may
therefore be the female, but sexual modifications can be said to be
virtually unobservable.

It is difficult to believe that so singular a genus as this, composed
of moderately large and rather numerous species, evidently widely
diffused over the neotropics, can have been overlooked by all former
authors, but I am unable to discover it in the literature. Lichnus
Lac., is very different in being rather coarsely and closely punctate,
with the antennal scape attaining the eyes, and in having the
prothorax rapidly narrowed anteriorly, and, in Lispodemus Lac.,
the pygidium is covered by the elytra.

Paralichnus n. gen.

The type of this genus is a somewhat conspicuous black glabrous
species, with bright rufous prothorax and rather coarse but sparse
sculpture. The beak is moderately thick, arcuate, cylindric and
separated from the head by a feeble impression, having medially
the usual small fovea. Antennze between basal third and fourth,
the scape short, barely longer than the club and virtually attaining
the eye, the first funicular joint as long as the next three, the club
somewhat abrupt, evenly oval, pubescent and with rather large
basal segment. Prosternum flat, separating the coxe by scarcely
a third of their width and transversely subrectilinearly truncate
behind, the intercoxal suture fine but very distinct. Prothorax
shorter than wide, not tubulate at apex and with small, very short

BRAZILIAN BARINA 497

and broadly rounded basal median lobe, the scutellum small, free,
quadrate and slightly impressed, the elytra strongly striate and the
pygidium small, flat, densely sculptured and semicircular. . The
legs are short and normal, the femora not inflated, the tarsi rather
narrow and the claws arcuate, free and moderate in size. The type
is the following:

Paralichnus rubricollis n. sp.—Not very slender, parallel, convex and shining,
deep black throughout, with bright rufous prothorax above and beneath; beak
evenly arcuate, feebly tapering, rather finely but strongly, loosely punctate and
as long as the prothorax, the antenne obscure rufous; prothorax a fourth wider
than long, the sides parallel and straight basally, gradually evenly rounding
beyond the middle to the truncate apex, which is half as wide as the base; punc-
tures deep and conspicuous but rather widely separated even at the sides; median
smooth line flat and abbreviated; elytra not quite two and one-half times as long
as wide, with parallel straight sides, gradually arcuate toward the not very
obtuse apex, barely visibly wider than the prothorax and two and three-fourths
times as long, the humeral swelling feeble and notably small; strize very coarse,
approximately and strongly punctate, very coarse though sharply groove-like at
apex; intervals three times as wide as the stria@, with uneven series of very small
and widely spaced punctures; surface feebly declivous at base and without sub-
apical umbones; first abdominal suture very fine and subobsolete, the others
coarse and deep, reflexed at the sides. Length 6.6-7.0 mm.; width 2.0-2.35 mm.
Paraguay. Rolle and Drake. Two specimens.

No trace of any modifications significient of sex can be discovered
in either of the specimens at hand.

Madopterus Schon.

In this well known genus the body is glabrous, polished, cylindric,
with conical prothorax and short and transverse, inferiorly arcuate
and distinctly oblique pygidium. The beak is moderately slender
to rather thick, short or moderate in length, evenly cylindric, feebly
arcuate and not separated from the head by an impression. An-
tenne well beyond the middle, with long scape, almost attaining the
eye, the first funicular joint notably thick and rather longer than
the next two, and the club not abrupt, large, ovoidal, thick and
conically pointed. Prosternum flat or feebly convex, raised and
prominent along the middle behind the coxz, which are subcon-
tiguous, the truncate hind margin very obsoletely prominent at the
middle. The prothorax is not tubulate at apex, the basal margin
very gradually and feebly subcuspid at the middle and the scutellum
free, quadrate and feebly impressed. The elytra are very finely
and more or less obsoletely striate, not impressed at base, but
strongly and irregularly exarate at apex, the third and ninth inter-
vals becoming prominent subapically, united near the apex and
continued to the margin by a single elevation. The legs are long,
slender and simple, the tarsi rather narrow, the anterior moderately

T. L. Casey, Mem. Col. X, Oct. 1922.

498 _ MEMOIRS ON THE COLEOPTERA

dilated and the claws free. The male sometimes has a long narrow
abdominal impression toward base. The four species before me
are as follows:

Median line of the pronotum distinctly prominent in apical half. Body notably
small and slender, polished, rufo-piceous, the elytra blacker; beak moderately
thick, as long as the prothorax, finely, sparsely punctate, scarcely arcuate,
gradually somewhat bent distally; antenne at four-sevenths, the scape not
attaining the eye, the club notably large and thick, as long as the preceding
six joints; prothorax a fifth longer than wide, the sides feebly arcuate apically,
parallel and slightly so basally and oblique and straight between these
limits; apex half as wide as the base; punctures in apical half moderately
coarse and separated by their widths or but little more, finer medially, in
posterior half minute, very remote and almost obsolete; elytra two and
one-half times as long as wide, subparallel, obtusely rounded at apex, sub-
equal in width to the prothorax and evidently more than twice as long, the
humeri not tumid; striz very fine and subobsolete, but with the punctures
distinct though fine and well separated; intervals smooth; pygidium very
short, three or four times as wide as long, the punctures uneven, slightly
separated; fifth ventral flattened medially, the apex sinuato-truncate in the
type. Length 5.35 mm.; width 1.35 mm. Brazil (Santarem). One speci-
men, which, from the form of the fifth ventral, may possibly be the male,
though there is no basal abdominal impression............ seriatellus n. sp.

Median thoracic line not or only very indefinitely subprominent; size larger.. .2

2—Body extremely elongate-suboval, convex and polished, black throughout,
the fourth tarsal joint rufous; beak (<) as long as the head and prothorax,
moderately thick, straight, arcuate distally, finely but deeply, rather closely
punctate; antenne near three-fifths, rather short, piceous, the scape not
attaining the eye, the club narrowly oval, more than twice as long as wide,
gradually pointed, as long as the five preceding joints and subequally divided
by the sutures; prothorax two-fifths longer than wide, the sides evenly and
very distinctly arcuate from base to apex, parallel at the extreme base;
apex truncate, fully half as wide as the base; punctures strong and somewhat
close in about apical half, gradually fine and remote thence posteriorly, with
an elongate vacant space at lateral fourth, extending to apical third; scu-
tellum narrowed slightly toward base; elytra two and three-fourths times as
long as wide, at base as wide as the prothorax, two and two-fifths times as
long, the sides feebly oblique and nearly straight, the apex obtusely rounded;
strize obsolete but marked by series of minute punctures, the deeply exarate
apex as described above; pygidium feebly convex, finely, densely punctate,
fully three times as wide as long; male abdomen with a narrow impression
along the middle in almost basal half, the fifth segment feebly impressed and
sinuato-truncate. Length 7.0 mm.; width 1.8 mm. Brazil (Santarem).
One Specimen... ein soe sR ASR ER ote oils oho cit eater eo arcuatus n. sp.

Body slender, parallel and convex; coloration as in the preceding, except that
the prothorax is faintly piceo-rufous; surface shining; beak in the type
rather short, evenly cylindric, only moderately slender, straight, bent at the
antennz, finely, more sparsely punctate and only four-fifths as long as the
prothorax; antenne at four-sevenths, piceous, the club thicker, scarcely
twice as long as wide, gradually pointed, pubescent throughout, as long as
the five preceding joints, its first segment longer than the second; prothorax
scarcely a fifth longer than wide, the sides evenly but only very feebly
arcuate from base to apex, the latter truncate and almost four-sevenths as
wide as the base; punctures small but strong and separated by twice their

BRAZILIAN BARINZ 499

diameters anteriad, gradually and evenly becoming minute and’ remote in
about basal half; scutellum subsimilar; elytra two and one-half times as
long as wide, barely visibly wider than the prothorax and two and a third
times as long, the sides parallel and straight, arcuate distad, the apex almost
rectilinearly truncate; sculpture nearly as in the preceding; pygidium very
oblique, only slightly over twice as wide as long; deeply punctate, less finely
and more loosely than in arcuatus; abdomen in the type without trace of
longitudinal impression, the fifth segment witha rounded central impression,
the hind margin broadly and evenly arcuate. Length 6.4 mm.; width
1.65 mm. Brazil (Santarem). One specimen............. lubricus n. sp.
Body not quite so slender, subcylindric, polished and black, the legs more or less
piceous; beak rather thick, evenly cylindric, evenly and feebly arcuate,
finely, somewhat sparsely punctate and four-fifths as long as the prothorax;
antenne piceous, at three-fifths, the outer funicular joints broader, the club
stout, oval, less abrupt, rapidly pointed and about as long as the five pre-
ceding joints; prothorax about a sixth longer than wide, evenly conical, the
sides scarcely visibly less than straight; apex somewhat over half as wide as
the base; punctuation very nearly as in /ubricus; scutellum hexagonal,
slightly transverse; elytra scarcely two and one-half times as long as wide,
very slightly wider than the prothorax and between two and three times as
long, the sides just visibly oblique and feebly arcuate, gradually more so
toward the truncate apex; sculpture somewhat as in the preceding species;
pygidium oblique, rather closely punctate, between two and three times as
wide as long and circularly rounded; abdomen strongly, evenly convex, the
fifth segment in specimen at hand with a large and shallow rounded central
impression, the apex broadly arcuate. Length 6.8 mm.; width 1.85 mm.

French Guiana (Cayenne). Desbrochers des Loges. One specimen.
talpa Boh.

In the last three species the anterior coxe are subcontiguous, but
in seriatellus they are distinctly though narrowly separated. My
material is so scanty that I am unable to obtain any clear idea of
the male sexual modifications of the beak, abdomen and other
parts; sometimes, as in arcuatus, these characters however become
very evident.

Strongylotes Schon.

The body is here more parallel than in Madopterus, with much
coarser sculpture, coarsely striate elytra and squamose integuments.
The beak is slender, cylindric, nearly straight, being feebly arcuate
distally, feebly sculptured, not separated from the head by any
kind of impression and short or very moderate in length. Antenne
rather slender, medial in insertion, with slender and feebly capitate
scape, almost attaining the eye, the first funicular joint as long as
the next three and the club oval, pubescent, subequally segmented
by the sutures and only as long as the three or four preceding
joints. The prosternum is short, almost flat, separating the coxe
by scarcely a fourth of their width, truncate behind and with the
median line behind the coxe slightly tumid. Prothorax subquad-
rate, rapidly rounding at apex, not tubulate and with the basal

500 MEMOIRS ON THE COLEOPTERA

lobe vestigial or very small, the scutellum free, small, subquadrate
and more or less impressed, the elytra with coarse strize, which are
strongly punctured, each puncture bearing a whitish scale as a rule,
coarsely exarateatapex. The pygidium is short, circularly rounded,
subvertical and strongly, densely punctate. The legs are rather
short and stout, the tarsi dilated and the claws small and connate.
Sexual characters are nowhere apparent in any of the three species
in my collection, which may be described as follows:

Body parallel, convex, black throughout, with somewhat piceous legs, rather
shining, the scales yellowish to white, narrow and evenly somewhat close-set
on the pronotum, finer, sparser and gradually disappearing medially on the
pronotum, sparse on the elytra, very fine in the striz, small and sparse
beneath, larger and closer toward the sides of the abdomen and large and
dense on the met-episterna; beak finely, sparsely punctate, equal in diameter
throughout, but thicker at the actual base, toward which the punctures are
coarser and squamulose, almost three-fourths as long as the prothorax;
antenne dark rifous; prothorax very slightly longer than wide, the sides
parallel and nearly straight, rapidly and evenly rounding in about apical
fourth, the truncate apex half as wide as the base; punctures coarse, longi-
tudinally confluent at the sides, well separated medially, with a simple
impunctate line not attaining the apex; elytra two and one-half times as
long as wide, two and a third times as long as the prothorax and equal in
width, the sides parallel and straight, converging and arcuate in less than
posterior third to the narrowly obtuse apex; strie fully a third as wide as
the intervals, strongly and closely punctate, the intervals loosely rugulose
and moderately punctate. Length 6.65-6.7 mm.; width 1.85 mm. Brazil
(Santarem). One specimen. Another specimen, from the same locality,
resembles the type in every way, except that the prothorax is exactly as long
as wide, with the truncate apex distinctly more than half as wide as the
base; perhaps this may prove to be the female........... quadricollis n. sp.

Body similarly parallel and sparsely squamulose, more feebly shining and less
coarsely sculptured, black, the elytra faintly picescent; squamules of the
pronotum similarly arranged but still smaller, more slender and sparser,
those of the elytra nearly similar, sparse, rather long, slender and whitish,
those of the strial punctures very small and tenuous; whitish squamules
beneath nearly similar; beak almost similar in every way, fully three-fourths
as long as the prothorax; antenne rufous, blackish distally; prothorax just
visibly longer than wide, the parallel sides feebly arcuate, more gradually
rounding anteriad in nearly apical third, the truncate apex somewhat more
than half as wide as the base, which is narrower than the disk; punctures
much less coarse but conspicuous, rather coarse and longitudinally confluent
at the sides, less coarse and uneven but generally separated by about their
widths medially, the impunctate line biabbreviated; elytra nearly as in the
preceding; tarsi dilated as usual. Length 7.4 mm.; width 2.05 mm. Gua-
temala (Yzabal—elev. 100 ft.). One specimen........ guatemalensis n. sp.

Body of nearly similar parallel form, but with anteriorly dilated prothorax, the
coloration and vestiture very nearly as in the two preceding, the integuments
rather piceous-black, with obscure rufous legs; beak notably short, slender,
cylindric, finely, sparsely punctate, more coarsely at the slightly expanded
base, feebly bent at the antenne and scarcely two-thirds as long as the
prothorax, the antenne obscure rufous; prothorax a fourth longer than the
basal width, the sides slightly diverging and straight, evenly rounding in

BRAZILIAN BARIN 501

about apical third, the truncate apex four-sevenths as wide as the base,
‘which is distinctly narrower than the width near apical third; punctures
rather coarse and deep, confluent laterally, less coarse but deep and separated
by their widths medially, the smooth median line distinctly prominent;
elytra two and two-fifths longer than wide, as wide as the anterior part of
the prothorax and distinctly wider than the base of the latter, a little over
twice as long, the sides parallel and straight, gradually converging and arcuate
in about apical third to the narrowly obtuse apex; humeral swellings feeble,
narrow and polished; striew coarse, the close punctures-each with a distinct
elongate scale; intervals loosely, rugulosely and confusedly punctulate and
with regular single series of large elongate scales; pygidium small, short and
circularly rounded; first ventral suture fine though strongly marked through-
out, the abdomen evenly convex. Length 6.2 mm.; width 1.65 mm. Brazil
(Chapada)! Onetspecinnen: seg sis weal e le eeciae stcncke sores brevirostris n. sp.

The Strongylotes brachialis of Boheman, said to be from Mexico,
with its dentate femora and other aberrant characters, should
evidently form the type ot a distinct genus, and parallelus Chmp.,
the only other recorded species from the Central American region,
differs materially from guatemalensis in its much smaller size, longer
beak—said to be as long as the head and prothorax—and narrow
tarsi, those in guatemalensis being normally dilated. Squamans
Bob., is probakly a typical Strongylotes, but the beak is said to be
as long as the prothorax and the elytral scales denser at base, apex
and medially, which would impart quite a different habitus from
anything known to me, and, in lemniscatus, the type of the genus,
the prothorax is described as tubulate at apex and slightly prominent
along the median line, the elytral striation apparently very different,
the exarate posterior striae extending further forward, and the
anterior part of the striation finer than in the forms here described.

Neobaridia n. gen.

The general habitus of the body and nature and distribution of
the vestiture in this genus is very much as in Strongylotes, but it
differs in four important particulars relating to the beak, prosternum,
sculpture, especially of the pronotum, and in the free though not
very divergent tarsal claws. The beak is much less vertical in
repose than in the preceding genus, short, virtually straight and
subconical or feebly tapering from base to apex, though similarly
circular in section and feebly sculptured, and it is not separated
from the head by any kind of an impression. Antenne slightly
beyond the middle, nearly as in Strongylotes, but with smaller and
narrower club. The prosternum is rather short, flat, with a similar
fine subapical constriction, separates the coxe by rather more than
half their width, they being much less approximate than in Strongy-
lotes, and the posterior part is perfectly flat, not longitudinally
tumid along the middle; the hind margin is truncate. Prothorax

502 MEMOIRS ON THE COLEOPTERA

subquadrate, not tubulate, with truncate base and obsolete lobe
and fine, remote punctuation, except at the sides, the scutellum
small, free, subquadrate and feebly impressed, the elytra coarsely
striate, with flatter and non-rugulose intervals, the pygidium longer
and semicircular. Legs moderate, the tarsi even more dilated than
in Strongylotes. There are two known species as follows:

Form parallel, rather broad and only moderately convex, black throughout, the -
legs and tarsi also black; surface polished; beak not very slender, deep
black, polished, glabrous, finely, sparsely punctate throughout, with a small
fringe of squamules along the edge of the eyes and about two-thirds as long
as the prothorax; antennz obscure rufous, the scape -almost attaining the
eye, the first funicular joint not quite as long as the next three, the second and
third more or less longer than wide, the outer joints not much inflated, setose,
the club small, oval and barely longer than the three preceding joints;
prothorax very nearly as long as wide, widest near apical third, where the
sides are strongly rounded to the apex, feebly converging and nearly straight
thence to a minute basal arcuation; apex half as wide as the base; punctures
in somewhat more than lateral sixth rather strong and deep but well sepa-
rated, this part clothed closely with slender yellowish squamules, the entire
remainder glabrous and with very fine, remote punctures, the median line
not prominent, smooth for a short distance medially; elytra two and two-
fifths times as long as wide, as wide as the prothorax and two and one-half
times as long, the sides parallel and straight, evenly, circularly rounding at
apex, the humeral swellings feeble, polished; striz strong, even, only slightly
coarser at apex, their close punctures bearing distinct pale squamules;
intervals nearly smooth, with irregular series of moderate deep loose punc-
tures, bearing squamules similar to those of the strie; under surface un-
equally squamulose, more closely toward the sides. Length 8.5-8.7 mm.;
width 2.35-2.55 mm. Brazil (Chapada). March and January. Two
SPECIMEME, 5 fe picks. Wel See IS ee wha amplitarsis n. sp.

Form nearly similar but smaller, rather more convex, black throughout, but with
obscure rufous elytra; vestiture nearly as in the preceding; beak similar,
three-fourths as long as the prothorax, minutely and remotely punctulate;
antennez blackish-piceous, the first funicular joint very nearly as long as the
next three, the second slightly, the third not at all, longer than wide, the
club almost similar, abrupt, its basal segment nearly half the mass; prothorax
slightly shorter than wide, strongly inflated and widest just beyond the
middle, the sides thence convergent and feebly sinuate basally, broadly
rounded anteriorly; apex similarly non-tubulate, rather more than half as
wide as the base; punctures and vestiture arranged almost similarly, but
everywhere still finer and sparser; elytra parallel, as wide as the prothorax,
slightly wider than the base of the latter, evidently somewhat less than
three times as long, evenly rounded at apex; striz and general sculpture
nearly as in the preceding,-but less coarse throughout, the interstitial punc-
tures finer and more regularly uniserial; under surface nearly similar.
Length 6.7 mm.; width 1.8 mm. Brazil (Santarem). January. One
SPECIMEN ses nc-5 ps ste ehs Rok a eR a eo ACT ee lateralis n. sp.

I can discover nothing in any of the specimens at hand, which
seems to be indicative of sex.

BRAZILIAN BARINZ 503

Camopis n. gen.

This genus might be characterized in general terms as a Strongy-
lotes of small size and very slender form, having the pygidium
completely concealed by the elytra, but there are many other
important divergencies. The beak is short, slender, cylindric and
feebly sculptured, the front sloping gradually to its upper surface.
Antennz well behind the middle, rather slender, the scape almost
attaining the eye, its apey slightly curved outward, the first funicular
joint somewhat longer than the next two but not much thicker,
the outer joints gradually wider, the club small, narrow, oblong-
oval, about as long as the three preceding joints and subequally
segmented in the type, with the first segment glabrous and shining.
Prosternum differing greatly from Strongylotes in having the coxz
only slightly behind the middle of the length and separated by
about a fourth their width, the surface flat or convex and unmodified
throughout; base differing in having a large and broadly rounded
median lobe, very short and not well defined in parvirostris. Pro-
thorax oblong, briefly and feebly narrowed at apex, arcuato-truncate
at base, the scutellum small, rather closely fitted, oblong, expanding
at base; elytra moderately striate, somewhat rugulose, exarate at -
apex. Legs short, the anterioi a ijittle longer, the tarsi narrow and
undilated, the claws somewhat small and free. The two species in
my collection may be described as follows:

Body very slender, parallel, convex, dullin lustre, blackish-piceousand somewhat
closely clothed above with rather large, closely decumbent whitish scales,
almost uniform in distribution, but narrowly almost wanting along the
middle of the pronotum, somewhat less numerous and not so conspicuous
beneath; beak short, very slender, evenly cylindric, very evenly but feebly
arcuate, finely, sparsely punctate, densely squamo-herissate above the eyes,
and only four-sevenths as long as the prothorax; antennz as described above,
dark rufous, inserted at two-fifths; prothorax a third longer than wide,
parallel, the nearly. straight sides rounded and oblique only in apical fifth or
sixth, the truncate apex two-thirds as wide as the base; punctures confusedly
subconfluent throughout, moderately strong; narrow biabbreviated smooth
median line somewhat prominent; basal margin feebly prominent at the
middle; elytra nearly two and one-half times as long as wide, barely as wide
as the prothorax and only four-fifths longer, the sides parallel and straight;
apex rapidly rounded and oblique, not obtuse; humeral prominences wholly
obsolete; striz moderate but not well defined, their punctures bearing fine
squamules, the intervals rugose and with large scales; tibiz very short;
abdomen even, the sutures reflexed at the sides; prosternum flat, the short
intercoxal suture distinct. Length 4.75 mm.; width 0.85 mm. Brazil
(Chapada). iviarch. " (One'specimens') a. ac -.- sn ee ne: cylindrica n. sp.

Body not quite so slender, nearly as convex, parallel, more sparsely sculptured
and clothed and slightly more shining, rufous in color throughout, the head
black, the beak rufous; pale squamules very different, long, very slender,
well separated and wanting broadly along the middle on the pronotum, very
slender, sparse and suberect on the elytra, rather fine, nearly white and closer

504 MEMOIRS ON THE COLEOPTERA

along the sides beneath; beak very short, evenly cylindric, slender, sparsely
punctate and not distinctly more than half as long as the prothorax, broadly
bent at the middle; antennz a little behind the middle, pale rufous, rather
slender, the first funicular joint as long as the next three, the club somewhat
shorter, with the basal segment glabrous and almost half the mass; prothorax
almost a third longer than wide, the sides parallel, feebly arcuate anteriorly,
straighter basally, gradually rounding to the briefly tubulate truncate apex,
which is three-fifths as wide as the base; surface transversely impressed
just before the basal margin, which is broadly and feebly arcuate; punctures
rather small and well separated, larger but shallow and rugulose laterally;
median line only partially smooth, feebly prominent only at the extreme
apex; scutellum nearly as in the preceding; elytra two and a third times as
long as wide, scarcely as wide as the anterior part of the prothorax, about
twice as long, parallel, the straight sides gradually arcuate and oblique in
nearly apical third to the narrowly individually rounded apices; striz fine,
their indistinct punctures bearing slender decumbent squamules; intervals
strongly, loosely rugose and rather shining; first ventral suture distinct, not
obsolete as in the preceding, the prosternum more convex medially behind
the cox; legs nearly similar. Length 4.65 mm.; width 1.0 mm. Brazil
(Chapada).. March. One specimen........ ......-parvirostris n. sp.

Sexual characters are not apparent in either of the above types,
which in reality form two different subgenera, because of the more
abrupt and differently divided antennal club, convex prosternum,
briefly tubulate thoracic apex and transverse subbasal impression,
different sculpture and altogether different vestiture of parvirostris.
The subgenus having parvirostris as the type may take the name
Camopisella (n. subgen.).

Canopinus n. gen.

In its shorter and broadly oblong bodily form, this genus bears
scarcely any resemblance to the others described above as Madop-
terids, but there are certain structural features, such as the pos-
teriorly truncate prosternum, which seem to show that it forms a
part of this tribal group, and the beak, in general form and sexual
differences, is unlike anything else in the subfamily. The body is
glabrous above and strongly but sparsely sculptured. the punctures
beneath bearing small white squamules, sparse and uniform but
denser in a longitudinal line beyond each anterior coxa. Beak
straight, only feebly deflexed, slender and dorsally tricarinate in
basal half in the female, shorter, a little thicker and simply cylindric
in the male, separated from the head by a moderate impression.
Antenne just visibly behind (2) or beyond (co) the middle, the
scape slender, not attaining the eye, the first two funicular joints
notably elongate, the second the shorter, the other joints more or
less evidently longer than wide and the club elongate-oval, pubescent
and scarcely longer than the three preceding joints, with its basal
segment nearly half the mass. Prosternum almost flat, with the

BRAZILIAN BARINE 505

usual fine subapical constriction, separating the coxee by two-thirds
their width, the intercoxal suture distinct. Prothorax short, not
tubulate, although the dorsal surface at apex is feebly impressed,
the truncate base feebly and obtusely cuspidulate at the middle;
scutellum free, oblong, parallel and longer than wide. Elytra with
rather coarse striz, the legs normal, the femora scarcely inflated;
tibiz but little shorter than the femora, the tarsi moderate, the
first two joints rather narrow, the third subcircularly inflated and
the claws moderate, free and divergent. The type is the following:

Canopinus rectirostris n. sp.—Oblong-suboval, shining, deep black throughout
and glabrous above; beak (<) straight, as long as the head and prothorax,
sparsely punctate and somewhat squamulose, or (2) a fourth longer, thinner and
sparsely punctate, slightly squamulose at the sides basally; antennz slender,
nearly black; prothorax transverse, two-fifths wider than long, somewhat wider
just behind the middle than at base, the sides strongly, almost evenly arcuate,
converging gradually from about two-thirds, the apex truncate, much less than
half as wide as the base; punctures rather coarse but not very deep, narrowly
separated at the sides, more so anteriad, smaller and sparse in basal four-sevenths,
the narrow median line not well defined but just visibly subprominent by oblique
light; elytra one-half (@) to four-sevenths (<”) longer than wide, at the middle
widest and evidently wider than the prothorax, nearly two and one-half times
as long, the sides parallel and broadly arcuate; apex rather rapidly and obtusely
rounded; striz strong, somewhat impressed, closely and moderately punctate,
not much coarser at apex; intervals four to five times as wide as the striae, not
quite flat and each with a single series of moderately coarse, close-set punctures;
under surface rather strongly and loosely punctate, the prosternum somewhat
coarsely so, the abdomen with a moderate impression medio-basally (<7), the
last segment short, transverse and densely clothed in both sexes. Length 4.65-
5.2 mm.; width 1.85-2.25 mm. Brazil (Obidos, Amazonas). Rolle. Four
specimens.

At first it seemed as though this genus might be the Parallelosomus
of Schénherr, but on closer observation it becomes obvious that
there can be no close resemblance.

To one desiring to identify a miscellaneous lot of genera and
species in this subfamily, the proper references may seem almost
impossible of attainment, except after prolonged study of the entire
series, and it is therefore proper to throw out a few hints, which
may serve to point the way to the tribal group most likely to include
such isolated material, as follows:

If the anterior coxe be contiguous or nearly so and the femora
denticulate, the unknown genus may pertain to one of the first three

506 MEMOIRS ON THE COLEOPTERA

tribes of this work; if narrow in body and elongate-oval, the genus
may form part of the Ambatini (p. 3); if broad and _ strongly
rhomboidal, it is probably one of the Optatini (p. 20); if somewhat
ventricose, small to minute in size and with relatively small pro-
thorax, it is to be looked for among the Cyrionichini (p. 10); but
there are exceptions which may be puzzling, as shown in the generic
tables of these tribes; the body is apt to be conspicuously clothed
in all of them, the pygidium invariably covered by the elytra and
in none is the prosternum armed before the coxe. If the coxe are
moderately separated, the pygidium entirely concealed and the
beak more or less slender—to which however there are many
exceptions—the genus sought for will belong to the Coleomerini
(p. 84) if the beak be received in repose in a closely fitting sternal
channel, with the body oblong-oval, shining and glabrous or nearly
so, or to the Ceelonertini (p. 94) if the beak be somewhat similarly
sheltered in a shorter sternal channel, the body subcylindric and
variably clothed. If, with similar coxee and covered pygidium, the
beak should be free, the genus may belong to the Diorymerini
(p. 31), if the upper contour of the body viewed in profile be
subsemicircular and the integuments smooth and glabrous—the
prosternum always unarmed, or to the Centrinini (p. 101) if the
- upper contour be moderately arcuate and the body rhomboidal, or
to the Limnobarini (p. 269) if structurally as in the Centrinini, but
with narrower or parallel body; in both the Centrinini and Limno-
barini prosternal spines are often evident or conspicuous in the male.
If with widely separated anterior coxee—sometimes narrowly how-
ever—the sterna form an almost uninterrupted surface antero-
posteriorly, it is probably one of the Madarini (p. 323), which may
have exposed or concealed pygidium and occasional prosternal
spines in the male. If the pygidium be exposed and vertical or
nearly so, with the sternal surfaces interrupted in continuity, the
genus should be sought among the Barini (p. 429). There are some
other small special tribes which may include the genus in hand,
and, as to these, if the body be glabrous, rhomboidal and of brilliant
metallic color, consult the Eurhinini (p. 417); if very long, parallel
and more or less depressed, the Madopterini (p. 492); or, if it have
a large exposed and very oblique pygidium, narrowly. separated
coxee, discontinuous sterna, slender rhomboid-oval body and elon-
gate slender beak, it may pertain to the genus Sonnetius (p. 321).

BRAZILIAN BARINZ 507

ERRATA

On page 94, under Iotomia, for ‘‘Type 7. gravidula [MS] nov..,’
I. convexicollis nov.

On page 103, under Tudeniaspis, for ‘‘Type 7. obsidiana [MS] nov.,” read
Type T. nigrina nov.

On page 105, under Crostis, for ‘‘Type C. subplanata [MS] nov.,”’ read Type
C. subexplanata nov.

On page 270, under Pycnonicentrus, for “‘Type P. subovalis [MS] nov.,’’ read
Type P. naso nov.

On page 80, under the subgenus Spermidius, change the name of ‘‘ semiruber”’
to semirubidus, there being a semiruber on page 65, under the subgenus Hiotus.

On page 274, omit the genus ‘‘Macriops,’’ as this was subsequently found to
be unrelated to the Barine, but not until the diagnosis had passed through the
press. As however its general characters have now been published, and a named
type assigned, it may be worth while to complete the publication as follows:

’

read Type

Subfamily ERIRHININ
Tribe ERIRHINI
Macriops n. gen.

Body narrow, cylindric and convex, glabrous; eyes large but well
separated above and beneath, the beak short, very slender, sub-
glabrous and evenly arcuate, very evenly cylindric, the antennze
slender and submedial, the club small, oval, abrupt and subglabrous,
with its basal segment about half the mass. Prosternum very
short before the coxz, which are relatively large, globular and
subcontiguous; posterior margin straight; middle coxe separated
by fully half their width; metasternum much longer than the first
ventral, the first abdominal suture very fine and subobsolete, the
others coarse and deep, only feebly reflexed at the sides. Legs very
moderate in length but slender, the femora feebly bent apically,
the anterior with a small acute inferior tooth, the others mutic;
tibize very slender, cylindric and strongly arcuate; tarsi rather long
and slender, the third joint dilated and bilobed. Prothorax tubulate
at tip, the transverse base just visibly arcuate at the middle.
Scutellum small, ogival and very free. Elytra strongly striate,
wider than the prothorax. Pygidium very small, extremely short
and transverse, smooth and feebly convex.

There can be very little doubt that this genus is one of the
Erirhinids, but it does not seem to be notably allied to any of the
subarctic forms. The type is the following:

Macriops parvicollis n. sp.—Small, cylindric and moderately shining, the
integuments red-brown in color and coarsely micro-reticulate; beak almost as

508 MEMOIRS ON THE COLEOPTERA

long as the head and prothorax, feebly sculptured, polished and glabrous, slender
and evenly arcuate and cylindric, not separated by a transverse impression, the
front between the eyes duller and longitudinally impressed; prothorax a fourth
wider than long, the sides parallel and moderately arcuate behind the tubulation,
which is three-fourths as wide as the base; punctures rather strong, not very
widely separated, irregularly sparse along the middle; elytra twice as long as
wide, a third wider than the prothorax and about three times as long; surface
impressed near the tip, finely, sparsely punctulate, the striz deep, obsoletely
punctate and about’a fourth as wide as the feebly convex intervals; sides parallel
and virtually straight, the apex rapidly obtuse, the humeri feebly prominent.
Length 2.6 mm.; widtho.8 mm. Brazil (Chapada). March. One specimen of
undetermined sex.

This species may be known easily by the slender cylindric form,
small prothorax, glabrous surface and slender, more or less bent
femora and tibie. .

INDEX

All generic and specific names without designation of authorship in the following
index, refer to new descriptions in the preceding pages of this work. Names merely
incidentally mentioned are frequently omitted.

PAGE
INCOICOMERIS He ee roe ener: 85, 92
MULOlasclabuStse ee cle. - stars 85, 92
Y Nii Fave sea ccc; 5 Chena cick amacrine TOs Tide
SPINOSAemeieet ct eslalolelsmieresens rls TO: LL
Ambates SChOtenerisrha «cciaies uatitetel: fh,
CiIFCMMCINEEMSs | sire eleele tela sl «ie 5
cleroides! Chimp issn sees 7
me lanoOpSsm@hM peace eye ses 5
roc (GAMES oGagomoccoumedson 5
coiknan (aio hoagscedoecoduc 5
JNEYNINEN TIS 5 5 6 GOO ge id DOU atiO coaiG 3
Ampeloglypter Lec.. .330, 406, 410, 429
GSTS o donde cpoculdod ms uD 409
GEAANIERISS 6. Blo ph 6.5 cciololo S.cn 06 410
ACME G dubs sand eG enomscrs.cc 409
HUITELVUS Seats Shetaneteie rene: cusecarste er 408
AUSiLOHMISs a aso ersisverae asthe ele 409
WMINUCUSs ws. De teeter cnn 410
KMS Hho aaondasaoenpooaoe 408
MUAY Po 5 a op cro clolnOla Oo tos & ool 408
INSITE oad Ap omlodsodauddcpodC 409
DLOVAUUSER retin cas creek esas 407
MISES ono blo ooddaecen ange 407
Agnphibarishiacs de: clescicciss ole: 430, 437
ODINGHACAR utente aiiatsicreyolehera 430, 438
J M@ARKTESTUNE}S o'5 Choe 6 om GE BOI OD 432, 448
EIDIAlIS A ei ehercues steers storie 432, 449
/Navvon SINE oiy GH Oke DOD 6 miOcG DIOL CIGIC ily Gy
cleroides!@hmpey «ste cele cess 7
JNTayd NAO els 8 5 auido GO uo UM Oue 432, 461
cayltsrebsters quioke nuggnoddor 432, 461
PATIATONCUStterae oo le ohesue che reloneto’e 273, 310
GENSUSK ae oe eusisteicielne bee 2725 310
Amawalliuss,. 32's < 12s <s'ala- 107, 206, 219
TUACOLMIS) BOMs. «<cs1s <2 107, 206
WATT a ZAlIMUIS) nate evagetersasie nie) ere eiens. «1 3260; 357
MLATIUS Sans al eilorereee chee avec eo. 326, 358
ATV LIS eh perdionera eteracieune is we 104, 152
SETiatalspeytird ohare stelle sce sect 104, 152
ATO DServe ers olsen aeilae = wheloner's 274, 319
SCUIpturatayy see sais ese eee « 274, 319
Anisorrhamphus Chmp........ 327, 305
TTATINUEGS creche ialadss Gy sue lovaus wicieue eee 366
squamiventris Chmp.......... 327
IAN ONES Mestre iol steiciolsle siceiaic = 81S = Tere PAN)
inhaticollishersis cers eel ers Ts Li7
DLOCAX NAA) ati encore ne ec 17
VADICUStieeterecsr eter crs caters eis eres 17

PAGE
AN OPSHIS) KeITSCh) tel. }ohelelerers) « 435, 490
bonvouloiri Kirsch............ 435
jpyqialeniblo AS tes Gb cd bowed © cHoko 490
SERIALS are erteche ts eieusiees oie eles AOI
AANOEESIODS)s Ecos eyeie siseisie oo evs 271 202
ODIGOSENSISS Wie atte ere ei 2A 202
VATHEESIS te va tsict crac aus teretaeereeat eas 327, 368
CONSDELSA ates weil clete) tenes ectrelta 327, 369
SOU PEAE Ce i oie aces hohe eee ls cine ore 3090
IATHEHeNITUS's coats, fissile ersre ete sere 94, 100
lobisjoylo bul ong Gbyo Cibto om o amon 94, 100
VAN EENOYalle een lpia OG cIDIG OIA OC aon 435, 489
CaUdalishyeta icicle eaeien: 435, 4890
Balaninus Germ......... 20, 26, 32, 81
Balbus Basesseuere ae clacicecrcre sh 435, 491
conicollis, Bolhw. <aleccle =e 435, 491
Baptobarishie eevee siennersreerecre 434, 485
CarmifexsBObne a. ssa cieers ss 434, 486
COMPLAr ewe der rewetelent-vetsietsL- 487
Exarataub Olina st iret 486
Tuhicollis#Bolie-tye) tte mia 487
sanguinicollis'\Germ.....-..... 486
Banidiaspisecr ies iki tertertertsier- 476
Baridius acutipennis Say.......... 442
(igowyyers JET 5S 85 ony ol oo, cote 434
CollarissBoleer sci ccce cherie as eke 328
Conicollise#Bonees eile ers 435
Cuntwltsp Bolle. st ioe re 330
GensuswVecrens ss) aaetsto cies ee isle 3290
ExaratucnBOhverc ce. weer er 486
impressifrons Boh............. 475
metallicus Bohs... assem e see 433
mitatilus BOW. «essere ies 331
TUtiCollis Bolte tswieelerere ers act: 487
SESOSEDIS UEC! ts rirataietessteielestercuetele 330
CibialiswBoht aajusie tele en ees 431
WNW ACUISISayiieeus sister ech ezennenoce 441
ISAT te Pataca (otetietel a ciel ool oceteticre save 429
Barish Gertie s siavcocherciotel cusisuetens 434, 476
AIMAZONICAR yA Wcneee seerenctereben eae 477
aunitarsis Germs - jie ierreien 105
balteatad sa desire citrate steele 481
Chapadanger snails ec yori 480
Gefectalscnseae celecrei spotter eae. 480
Gespectaerwe teeters aan: 479
HaACcid areata tereneisteren castes 479
Hil vA PESisaies session eaterc tote eles 477
IS abi) alo ther om lane Besar OIGIGIOtS BIO A717

509

510 INDEX
Inanises: socom aoe ee 478 condensata iis 2) soe 249
interpunctata Germ........... 473 decotratts a eer te ae 230
JOCOSAR:. Aucntit e tocnae ae eee ae 480 derisotilans Leas ee ee ee 247
mendozensish acne ee 479 devinctal.: 7 See ae eee 246
MIONStLOSAaN Get ae 433 elegans shicis.tes ee ae 238
Obhiviosan:.ci cel eee: 478 floralisne.. <aeten eee oe 242
(0}0) (or TRIN AY eka oh eo MT 479 graphicayo2 Seed. seas eee ee 236
DYLItosal Geni ee eee 430 fag ey ofa eC Wnemchen to mene Ane he Biot eer 250
sanguinicollis Germ........... 486 Statiosas. urna sees ae 237
Ssquamipes (German ee ee 107 hilanise, Joe een eee 237
Cimidus Olives eee ee eee 434 ingeniosariame soa see 241
Batycetlis Schone merrier 417, 428 INOPINAy | GNA we Acie ae 249
collanisi Gy lll eweeeree ie 417, 428 INthitas 2 ten eee ee 245
Batamess Acustica teehee ay tae: 4 leevicollis a serie n aces 243
GLVISUS 32, 45 Oe ites aks 5 1ONSICOMISH aa eee 248
solanii@hinip eee eee ee 2k INETIUS 5 Seanerceine ss Pea 249
Bonomilis27.. see nate: 33, OL nebulosa ste eins eae ee 239
NEOVInIGISH epee nee 33) 01 obnitxay Rn sarki ee eer 243
Brachybarissh.st-seeeee nee 227,405 occultalt. °. koe eae ee 250
CUNeIFOStrISMme ne Eee a 416 ochreatat .:0 2 aetaAch oon ore 251
elliptical, (asiecmnc ete eee 417 ODICA RAC a.. ee ee 244
IAM ETOSA Ne Pesan cre Lists a sce 416 Databilign sitio acini ceomee 244
‘oMUDRMNIE: IO An SAG oooe bake RKP! Partiteps! ost eee 245
Brachygereusecc eae nena I09, 228 PermMotatrets 2h Paes CO eee 236
bellnligne eee trae te I09, 229 perscillusiGylle hase eie 109
TAX ACUISE cers i eR ne eee El a ac 230 Dictas eiheraceto Seek eee 235
DELP TALIS scree. ere Mee hase 220 placabilisy (eect. sere teseeeettee 244
Brachylinomae eee 432, 463 Propingilay a4 anes eee 238
clavigera'. ::c)-.cnesoe eee 432, 463 PUCICa aac. eee 242
Calandra corvina) abt... oe. 379 relicta:.. 3; £398 Sear en eer 241
quadripustulata Fabr......... 328 SCCtAGOT +. A85 Sctnepat ee tioEee ae 240
Sieve UNA, go) ASdos mn anbe IIo Sediictatiin4 ee os oe eee 2390
Calandromimus Chmp............ 359 simiola 3... hee ee ee 246
Calorida cn .ck ee eee Il0O, 252 Solida.s 2h anc ee eee 239
binoculariss sree | eee DLO 252 Subatigustanaresan cesar ie ee 241
Camelodes Pase.......... LO2 silos ns subtilione.= cont. eqe ener eee 242
Le achi kerr hiyjoaee eee TO2. 012 testata :2 1 Mancacietene eae re ee 235
PASCOel Solari. jae eee II3 thespis 4222. ene 238
Camerones sn. io oh. 270, 288 timida 2) Gene eee oe 241
SeniIOpaCliss 4/4 ne 270, 289 tubulifera ccc eee ae 247
Gamopisn Oy ok. Ko eee 493, 503 Vverecundayi4 ik Sires 239
cylindrica, ..a oe 493, 503 Vernilis= is). ace eee Zar
DalRVITOStris:. 4). o2 see eee SOAmenCentrinites Coy). eee 107, 203
GCamopisellar sud. ute cee 504 conicicollis..: )% ee eee 204
Canopinustesn cn: eee 493, 504 LUSCIPENMIS:... ik oe eee 204
TECLITGSLIIS ike ee 493, 505 at hol CPOE AR Rts cit oc oo 204
Castenust Seine Meo coe 430, 435 OVOIdelIs® Jono dics cee 205
Cupreolatus 41.3 Aenoce eee 436 Separatus >. 24.485. eRe eee 203
pyritosus Germ.) 2... .eh oe 430, 436 Sintra Chieegoggodacccscn UOT
Centrinaspidia ener eer 100, 231 @entrinopus (syn. 4... eee 107, 205
MUTI wee ihre eee 109, 231 elvintis| CSyaoe sais 6 se eR TT
Centrmaspis sya ise I09, 233 onigiilUs's..e ate os. ice ee 206
ad Olescenss.tyuwee See eee 250 RECEUS! 25 )seeers soilore <a ererc eve ree 205
ATCO lA ae iia aes eee 240) TUGENTRINUNT Ss s045 dis. 6 Gis os ieee IOI
an cillar om Seed Ae ea ai 247 Centrinus angulus Boh............ aL
AU OUT AIS sree ua Seale tarts 246 COmbinISPEeC AN ak en ree 273
AUTICON MG pekinese earn 248 decipiens Week. 3k. 8.3 coher ee 270
AUStIALIS Ae oops aethadcanie ee 234 Gistingsis Bobi... a. .as aoc cee 106
Drevicollitc ctr | ewan eee 235 (eigonlialis) IEE Cid c.g ale eeo NS Bo a oo 261
DU COliCa Aone FN ai ecte pee ire 240 yaoeNhe(=) olitad 810) 0h ies Pee) a Came II2
Canonicaei. eer ee nee 245 montanisischaules|..2 - ase eee 325

INDEX

5II
DOLGEXMP ASC tre at ens is beets 107 Crostisnpe Wan anh mans kent 105, 166
DerscillnseGwlleseeene a 109 SUDex plana eee 105, 167
LUICORMIS!BOMeret i el yo: LO 7120 7am CLOtanitisers (oe it een ee III
CMMI AS Gh hpe eae eae 106 thivittatus Chimp.800.. 00s. :. LIE
Chepagra................0055 270, 274 Cryptobaris......... Soar aoe 85, 93
rotundicollis............. 270, 274 SULCAT ACL Ree es eee eee ieee Be, Oz
Cholinambates Sa Gen ERIS Con ee 4, 6 Cryptorhynchus leachi Kirby .... «. nae
albovittatus Chmp............ 6 Cylindrocerus Schén...... LO. CAS. 255
champions RGEC Ona CU EE, 6 ANnLeNNAtUSA say eo Roe Le 259
Cretiter(PAasesi 4 ane woes ates ee 6 Barmah vee lien a 257
heilipoides Chev... .-.-5:4-.-- 6 ae Boh, epee 135
levcoplenrayChmpin. 4-2 - 6 bisignatus Tek Saher ee aire 560
polymorphus Chmp........... 6 chapncana) ek. eee 254
Glandilishae chic ser aces 108, 221 cuneipennis. dicaik oer aK6
Cephaloteszeauac on eee 108, 222 cyaneus Beh are Bice Pe ee al 136
hystrix SS Lay eee eye ae 222 Genin area ee 259
SEU Sao oA Biers Riot ciel Amie aes Habelliitarsiss Boles > emis are 110
CG@LONERTINI. . ae o4 BOOS ATL a Me EGR Sarat 6G
Coelonertus Solari... ....... 94, 97, 100 TINTS eco oe a Re rR Ream 257
discretus highivcs 3 Nia «anaes eek 98 DALvinOratustscc cere sere 258
floricola FO eg Fe Aol ge > Pea 98 TECuUCEIS o Jays ee 258
silvestris ema Na VOU aes 98 en eee al aoe ae ee 256
solani Sess +. ee nes er 08 SUGMoM ATM yn dou so on oo 4 I1O
squamulosus Solari........... 94 LCNUINOLATIISH yey ean cies eee a eae 259
COLEOMERINI EA ROP rah sOSIe A we ah ho dete ae 84 Cunietchne da es eegen 433, ATA
@oleomeropsis|\€hmps. 2.20. .52---- 85 ehaienes a5
Goleomerius; Schon... 4.2.2.5 7.2% 2: 85, 86 peers Boh AY ch cic\ane windeaka. see
Reale Peres coe a) mete a BOR 1 all Ae i He pee
SOU ee Oi aa eae ae ae aU 1G MRTONICE INS 1 ae. ee eee 10
CONICICONISH Ae ciel te sacs s 90 :
ebentntisn Gillin sss eee. 85 Cyrionyx Fst. Dr ia Satie Epa ead ag ie oe aes
ellipticnsaraes: Joe coecnyla eis 87 balaninoides Chmp........... ay
ATI EMME CIS hye arecsie o < eee aces 87 bilineatus Chmp.............. aa
LES VASSITNUS epee yak seater eelienens 88 biplagiatus Fst.............. aun
MUSK Ary atte oie ties sta aes 88 nebulosus Chmp.............. a
OMsicianminsmm ence = are choise 890 novellus..........--..+++. 05) 13
Ee PEM ks ce eon 89 Be ea RRO Pt, Cia aaa? 14
MUM CEULALIGH IE Eien sy cos a seeeiel 90 IDK DEI pe yo Meson Sam P Rod coo 4)
TaNPULENAG a) no A Ee oe eo eines 89, 90 pleuralis eiishis paste iehsl nhc Reneuehs/e2 taWall= 14
TUM MUICOMIGM ENS cla. <0 ss se .yrnisia: 88 simplex... ....-...-5-5-5 salmon 85
GDATSUS ME eC. ole ie ord 90 Subbaltea tushy rater drome iter 14
Conephoniammneywel namesake o Ae O19 MSUEUSUGHi eae bate Ramparts 15
CanlanGhmip aac: = aye wiv syecans eee 9 tebraspiloilsiies cone ee eet 13
ChetaGeaweaseanas cues sree oie 9 Dactylocrepis Sch6én...... LLO} 205,323)
GISMELSarreesien ny Suey chats aye seo aie 9 flabellitarsis Bohs... 22.4... Ilo
Gistinctawhascey ese see as 9 lamelliteraeeerr ick neo aes: 266
Conoproctus Lac......... 324, 328, 384 DINAUMAVTAMEIS on aos LA RaW ae aloo 266
HATTA Seems, scene sists scat nes ons) = 384 PUNT 4 Severed coe cy ag 266
quadriplagiatus Lac........... 328 cine paves CU en Os Mags aia ud fre 267
COStOViaiac sv atyets seas os ZO Mmm Ou OS Anytime oe) eka ch 434, 488
tenuirostris Se eae cee 215920 BS EE ET et aif 434, 488
paisa as ae ee we WWamaritesd ets naa Doyles ens 378, 379
iihinlisBohe. <5 Chee ee 431, 441 Sa non Seana ache nck aaa oe ae
Crepantiseewnd eee: Cone ee g8) 55, ee Revi as a rcs eee ae
BINT. Gore ae gas ae esis Ke ELERSH ANS nvchio ave wie Heat ano G55 cee
SLIPOVALISH Nn woke eae aye 56 habilis........-.-+-----5 105, 198
Grostidiamus ) een ceed: 105, 167 Dialia............s.+sss-0: 105, 170
fenuipesse i asc seer 105, 168 atropolita...............-..- 172
Gropelian tte oe Ae ore BAR, See COMVEXIVENURIS iene t-te 171
PUMCtA taser ewate ucts ieiere ce 3253 337 oblongulanemene eee eee TOS. Le jL

r)
512
Diplomia a. elas ateeotees 105, 174
GISCreta J. salty ee eae ales
Sad atavtan. tar ewen eee ee 105, 175
Diastethus Pascal Sa el sOn ATS
AtrACISsr sy, PITS ET cs 139
CODAIbINUS rae mee ean = aos 138
CUDICUS is cra ee eo ae oe 137
ENOMMIS i Ott eente eo eee ke 138
eurhinoides;@hmp:,.,..,...... 136
humeronotatus Chmp......... 136
hinmmerosus Chime nn eo... so. 136
hyacinthuss sey ook eee. 137
iMterstibialiseGohertstas ee es 139
LONPIIMG mee ee see 139
DarelliaiseBolwne ce aia eee 139
SpleMdenciperne -a.mvers GB l tcc ve 138
tumudusyBole bene) sc ieee oe 102
violaceus: @hmpyete ss he. s es 136
Dimestsvbascwaensly ke See. <0 I1I0, 260
bitasciatisrerestm et ce hse 5 ee 263
PEMIUMUMISREASCAnki ae rc. Scene: IIo
ATI OEM ACUSe Mees Se) «cscs Se kee 263
IE SEO IS Sra! clo din ce ROR a ER hes 262
MMACHEMUMS aerate si teoe yc cae ee 262
TUDEICO MISE te Ge mise eee oe 205
GINOTAGOUMISH eee tsketo © see sane 204
SEMMECCEUS Hwee bese nent 263
STUMEIMECETIS raster ae teint ss coe 204
ENOTAGICUSUMNCIART eioe nite ek 262
DiorygomerusiG./Gc Hi... . 000s... 34
IDTORVMERTN Ge at cite misses hy inie 31
DionrymenisiSchonyee. s+ 0... - 32a 8402
YGIUTIA IS 0 dl SAN oie Eee ee 46
Amplicollisemmcieris etre selene 43
angulicollis Bohte.....4..004- 52
ANU Lense eete rh hc aie si sis beste 49
PUEDES eee vets vcillavcls rahicie eeees 49
AUTIEUSED ObMtr ere s)25 ois ee ae Boss
basalish eee ery eos. a ono ache 51
bicispidatism acc: ove eis. 47
brevarostrismarer e weveteshete na ts 36
Dreviscutisniepee ole ots ole: a7
OPEN OT EIS Coens th Ohare ee 39
CANVITOSERIS rence oy mero R le colts ee, oss 41
CAMLVEN GIS rin rime cntiegeans Bass
Convextcollisnma eminem erence. & 44
CUNEIPENMIS sa ee eaeie Gore cise; 37
CUFEIDENMISE eat ir ieee cay 49
CUECIFOSERIS: cies eae Weise sas 27
Cylindrinasus eee ee seo 40
GENSITOSERISS y-teerapn rica te ois once 42
denticulatus)Ghiipee cs oe: 82
GIstingiiendust eer oenteee Ar 52
eDENINUS) Gikie ane cee 50
emarginatus: cee Ree 47
enythronotus Chimp yeni: 84
frugalis. 53. 51
Peniculatus wn wane eee 46
ineequalis: i543 2ec pee 45
INCETUUS:. eet ee 39
INCOMSPICIIUS. oe, ee ee 48

INDEX
INNOGENS!... ovis. aioe Re 45
leevilisculus @uimipaese eee 82
longicolllish ase ete a eee 38
luridicollistsewecui. eee ee 46
TMEGUS). 5 io ne ae se ee 45
MOTIOs i acinlache a eee 50
MIGHICUS: {eto akkie cute eee 51
ordinatuss >.) eee 38
DICSUS tye aon eee 39
planiscutisse;.en ane e ee 45
DOLCINUUS Aire curios eee 38, 52
DOSHICUSE 1). ae) ae 36
punctatus, Chimps... sae. ose 84
DUNCEIrOStris) ace eee 42
DUNCCISCULIS ee ete eee 48
quadristriatus Chmp.......... 84
Seutellints A514 o ee 44
SeMIStratusey. cana eee ea ee 39
SINMALISCULISN ..n hs uae eee 52
SDONSOFM, (ast. kag ee ee 43
Striatus...... FFs ere 52
subthonibicus))2 2... eee ee 48
teretirostris:, 4.290. 22 pee 44
testaceus.. oi: loch): cine eee 30
trapezicollis®... ce) ee 43, 52
thuncaticollis., ...3c0) see 40, 52
EVUIMICISCITELS nat) 47
UMponavicollis: .. 35 eee 4I, 52
WMISEHIAGIISS sensi cds oe ce 50
VEEKUCICONI Sey eruien ane AZ. ehe,
Vestipialligt: 1 a. citar ae eae 82
TDISSOPVZUSHe ees ieee Soe Re 433, 462
oblonigusss2. 7.) eee 433, 462
Epilobaspisi(Ghev>..5 4. soca fie ges
ESRIRBUINUN AG ie echo ortics tie oe 507
Pthelda ais trotto sts nel. ae eee 270,205
SQUAMOSA yi. oe eee 27 Tee 205
Eucoleomenisn sec een eee SS as
Mignicartdary sic me ate 85, 86
SUDSUMI Sere eee eee ee 86
MUdamarushny ca. grit 328, 378
I PLESSILOSELISeie eee 328, 379
VETNICAtUS es bac be Gant eee 379
IDiipobaloiaeL. Ye bo GL Gg boawadods 105, 175
longiilay..< eau Oe eee 105, 176
Femotay...) os veces eae ee 176
EVUgivenius. caste ee 431, 443
CHIDIOSUS)-wweuden eee 431, 443
Eulophodesss sane ie eee 23553
monoceros Bola. eee 3g
tiumifer 3:22 Shee Sie Gee 53
Emicronyx.., cee eee II, 18
Gurticollis. ac aa tee 19
densicollis. ou c.aesaeae eee 19
PUNETEa Tv ic sas acs oe DE, £6
FSUNICaREFUS 5 on)o adc ete 270, 280
elonvatus: :) G66. some eee 281
MULTI. Solos ios, wc ase 270, 281
FV UREUINUNT 2 ets he oe ald eee 417

INDEX 513
Eurhinopsis \Giniriho vee Deke AI], 425 (GUEVGO SENS an coe cidloo colt TO? ELige ss:
zruginosa Chmp.......... A417, 428 chally EUs te elector erate 102, 135
ALIGAPAM A clii cia peer eya eS 426 NATIGUSH Ge ecoee c athee es Oee Ree 135
CONV EXAaer ee beeps 428 mMetallicugajaiscPesw se ct eres I35
ThaLGa Tel b co RISE RGIS ore owe Oe 427 imalvgaovl beiniaiG ome aa oo Goad 134
ODLGUaerSereooe sciences ats 427 Gly ptobanidian . reacts rele 433, 475
mesNeolik; . oHbaceoagss Gul Goe 427 HAYS EXER soc casi test seoie oeecetelete 433, 476
Virigicolon Chimps. lee ere 428 Glyptobaris Csy......429, 430, 436, 448
er hintispSCnOns ser. eis.) sVtetatene it 417 AMAZOMICA Ls deta oes Nee 437
; azureatuS......--+--+++eseees 423 Gerba Colgiwe Gama hos sank soe eo 437
DInanluSmi utes sisicianerhacnaeine 421 lecontel) Chipsn 15 ae ueriens ele 430
CAWICOTMIS 6 5 cic ee a oes Aatyn TGTOAUIIG eat oyae ie ter 6 ee ode 326, 353
CAWVILO DUIS a isk clesbe wl er bes ten ocue opel le 420 TOLICO ISH anes Menten ene 326, 354
chevrolati Chmp.........---.- 425 TUB DEN MISS un case. si wae ee 354
CObAltINUS ere cea aerate 420 Haplostethops Csy..........--+--+ 209
cupratus Germ.........------ 423 ellipsoides Sy... 22s. see 65
cyaneus Gyll.:........--- AN PeALOS A EArotrenS mecca e esc is setae Seow
FEseluusubiaDinevevel ieee eal: 421 chapadaniste.*2s0 2. tha saan 85, OI
flatnarnius Geri 2) nein ten 425 lyratus Desb..........060000- QI
gemmulus........--.--+-+--+> 423 Hntiinaliss « ccthen ace ees 92
gramineus.........----+++++: AZAR UETABIAUS ois ss tise Take detera seen 331; 414
MMeEralish: «co /suceewe cis slew eae ees 419 obliquatus....... mStar 331, 414
IAT Cie abel teecueue pecan heaton cubes crore 423 Heterosternus Kirsch, 432, 441, 442,
Mag wineNs) Grylls oe ene 422 446, 450
HMA TY peed on ome Domed borsOeO 422 Ai aReS On ok eee 456
PUOMMBETIS ee ese -tsie ole lees ery Os 421 CECA POT ered aang mae 458
DUMCCICOITS sa eenie rel oreo de 2 eh l= 424 Giri SE eet 432
suffusus.......+---++++++20+0: 425 GCHIDRICO liso: cau, Genes ae meee 451
WOIRYSSISNS Ao Cees Ra oe OS 419 aie ae Ley Dae Ra eee Ao 457
viridis Boh.........+---++++++ 425 eylindrelltiss). 0. sonsarenint ves 460
yucatecus Chmp.......-.----+ 425 densissimusem on eee oe enn 457
unypacesm@easGr) 1... oe 21, 28, 2¢ Ha biliste.§...ptcksc werec Gonna ee ere 456
pennatus Pasc.......--+----- an imitatOn +) Ao eee ee ee eee 459
TECELOSEHISHIe ees hae eT 28 f Sisteatnbass <n) un ese eee 453
IS MSOMIENES a scleteia se cleie ni enmastee 272, 300 FLERE RUN PURE BINGE. 2 0 Anh a 450
MNP ULAESi ey ctens eres) ee) ase 301 Ey Leite. 4 Ree oe 457
GUREILOSEMS ais sae oe se eine 272, 300 BAM dca Soc eed wanton Ae 460
Eutoxus Sch6n........-.------ 341, 385 MUNECICOMIS Hate eee eee 452
DucaietNCe oo be geaeD sas ooe 434, 482 POLIGLUSI hetero tn be ota tance ot deter ener 454
(ioralblVAtS poe onooodD eT oc 434, 483 TOSETICULIS | Neen oa oer eee 458
RIS OMIA reece ee aves seusieriomenera cero 270, 289 SELCLUTISE Perea aia otra cence 457
DREVATIASTISHMeey che rleieus oe sete 270, 289 BOCAS Ne Or eee atte nie 455
Hagprcitacliaewa re tacieer seeks ciara cree ve 109, 226 SOSDES Eee ieteiaere ratio 456
Guplexmmieriee iets ta meet 109, 227 TENULLOSEDIS Hiei ei clee ven neers 454
CATIA cece ee he ce ae 104, I51 (TORUS an anoeno nd wo asas ocd 453
MINT ATIS ME lone Roe 104, I5I ETIELIG Son ese ecrs eae sea herceade ohehe 459
(GENESEUIS Heart ee areas Pete orien icy tse A Satkia tal Clerc ete pee ch cea acura tech 452
HITGStRISH: eee ee Seen 33, 81 TMD TAtWIS nae re io aterm nat ee 458
Genevra eee eee eee he -.430, 439 UIMICLIS I iene ate sasvereye rele carers 452
Dinahiane ener ie see ee 430, 440 VAL CTEN iia ane catia oWooummossrolcl meveneteits 451
CULEICOllishey es ve Bee oe 440 Valens... 202s eevee stents 455
Gereustease wet i ewee ee ee 110 VADICUS. » 22-22 oo sel 455
trivittatus Chmp............. III __veridicus........-.++++- Js Bao 453
Giveniopsis RO ay Ree 2 he a eS 433: 464 Hiotidius Seer, Sakon RRC ECAH OR ARO! Cahisncy oc 84
BASDEUIM AS eee nee ike ast e vce 466 Hiotomicrus......-..----++-+-+-- 80
Prenieailist stata houses 465 Hiotopsis..........----++-++:+:: 72, 83
FMOLOSAN See ei nceaaseie se cshewestetemtee A465. Hiotus......--- 0-220: 23,102,039 0238
DICELPES i uaa ie Ol csi ats ie ct 433, 465 AGCUEIPEMMIS ye sleet a chuere rater 81
GUV EMIS Me Mehran toe cereee meters 431, 442 Exe [bby wis 4G Olpoinow dao olla 83
Gjolboareadeio oop bok oon eee 431, 442 Ayoistes) Win 4 6 UO Moo os Onde ba 67
T. L. Casey, Mem. Col. X, Oct. 1922

ANSUSTINASUS Rae eee eee 65
Brevilsculuss-atea ene eres 76
CAVITTFONS ey en ee Oe aie 69
CANVASCULISS siete ee ences 64
CONPTUENS) Senescence ate 76
CONUS eee Coe ee 72
CONVELLENS Teen las ee 67
COMMING Vai eae Aces Dee 69
defecttisle. Gaerne eet ieee Pia
dehinitusee etcetera le sick 70
Gemissushie settee Coe eke 68
OCIS Ee iede eR Re tiic tee cee, Grohe 74
EVANESCENS eye ete wus sakes ees 66
HACciClismMee ten eiyte eee 76
Hebilig heirs ach ett ehlete 67
LOVEICE DSR WA ceo sectpeces eect ede a 68
ikea CLUS race fe aice cleus ee 75
PRECUIS Hany siete cde: ice ge eR 75
MOMED Ish aay nook ke ee eet ees 69
PIOMOSUSH seer ee ae een Ait
PUILOSTIS Mera tee co. Mane ee eee 67
JOH ATES Ny Gish teak ee eee RRB cs = 64
LMPLESSIDASISE tak oc 2) rete mea 65
TOV E Stic 2 aaah EDA RR, ete hae 2303)
Leva EMeIISt ik ace eee ae 80
PONTE Ses se 2S «de ce REI 79
WLATUULG mcr tiahs 2. 2 che A aie. SE ee 75
ODESTISHMEM MENA ee chiin sis Clare 63
OVOMDETIS Mp od orks «0 seed eane 70
DAMVISCUPIGH sehnc,. sasdderenaass 69
DEEDIEXISH, eee. oa Oke Gah
DICE OLS Heenan ta 74
TEEVACGUS Mt. my on spo a cis, Sinesventeae 72
MOSCKaliSteeg re. | hers a, 6 atu eS 71
SEVUMCLUS Meare erie.) es. ae Fak
Srevailir[ el] DST oR erated te ce 65
SCMINITM Delavan so si.lac ) a ae oe 80
See semirubidus.......... 507
SCTEMUS Mpa aeons bra tiiedeee 74
SOIIEUStee Mie te lei inc bee Re 73
SMECUIMTMIMEs eee Aken 74
StOMGMS ener eee ices hee eee 83
SUV Sl aliSeeameomeys nec ic.4.,.\egane 79
SUE Unallil Seepage eee etet | 79
EHOPACLEUIS Tene tne oye ail cies 83
ETE DICUS eee gentry eee, x ey 78
LTV alisha ears Wouters everett 78
(CUmiciibacisee uss eee 64
VADIG Stirred Woe hear ak ts FG
VELNIGALLISH ee eye ior anne 73
Mille US oie Seen ae ae: 72
ul peas austen even tar er rain 326, 360
TUM ICI PECEIS aay 326, 360
Hinlpeseliuss sae 320, 391, 394
Cuneiformisss- ean eee 329, 391
Tdiopsidasy oot ana eee 83553
DEEViOl rs, tives oe ee ee 54
INCE STA gots heya 55
Dlenicollish 1a sentria Beno 4n 55
GULOPICEAL 3.00: ee ene 54

Stridtellat haere tcis (ere 55

LOPSA eve ciciion eye tree ee ee Qifiig Biz)
Incequaliss, = tne ce ee nee 318
SPAISA Sts sn cates al ad tee 274, 318

Iopsidaspistiet sas ae ee 271, 298
truneatula eras eee 271, 298

Totomia snk ace cer eee 94, 95, 96
baltecllat7s- an cee eee 97
convexicollist2 <= eo: ae eee 97
thoracica ys aco aee eeee 07

adustaspisee a pee TIO, 254
Naviscutishn. eee I1I0, 254

Hadustess ac Suptsy eis eee eee 106, 178
Drevilisciiluse eee eee 180
CAnInUlatiice.. cc. eink er ee eee 179
INSICMIG# 22, \kh anh 106, 179
TATMUS ey al enhance ante 181
SOM vase Shey pee ee poem 178
Simitlans: ei ee ee ee 181
stabilisz/ti 4.12 see eee 180

Weptogarniaa.. ence hee 103, I41
DOlitay he: shee ee ae 103, 142

eptoladustes:.) 4.0 sen © eee TOS, £77
densusAvre pee ele sae HO5eu 77)

Eeptomadanis to cates eee 381

Leptosaldiuss. 3.44, 6+.) eee LOOMESS
adductusy Ash aAe eee 186
attentiatusy. oaks hte ee eon 187
AVIGUS! Ole, Set ee Skee 187
bullatus#ss*746. 6 eee 186
CAdUCHS HS ert ek ee ee 106, 184
CAaStish 22a ake ee ene 186
Clemens. ier. 2 ss aa oe eee 185
Cornvullusaascteslege a ee LOT
levicolliss fi eat eee oer 186
HUISICOMLIsh kk yas che 185
sulcatiulusmicy. ns ee 185

ICIMNOBARINT sayin okay oisbae eta tee 2690

Limnobaroides Chmp...... 325, 344, 4290

Tin sanilaly s yeees cae. cna ee 103, 146
Suttralis ee «eee TOR, LA:

Binogerecus"Csy55.0 5 oso aron 109, IIO

noma etace ae 420, 431, 442, 446
lustramcy § ct. seen oe eae 431, 447

Eimomadaris tea 330, 394, 399
AIgCaligir ic jyca sts 0 eto eee 402
elongatus? 4.56). 2.4. - eee oe 400
Srad acuseanec cue ates eas 401
IMLOMNATUS's &atis.. aed se ee 402
INLOTIO.s ele Hee ee eee 401
perlevis ; . 400
simples: 200) ei a eee 403
simulator .i:3 ack ae eee oe 401
SUDMIMIUS | eye ee eee 400
subtilis aA a. eee 400
SUbDULInOStrISee rrr eee 402, 403

ILinomaspisiy.. oe ee ee Enea
PICeaw Lo oe le een 431, 448

IWabao MOTO Gc oun daceoss ne 106, 188
@MOGNUSs line ec cnene ces oe I92
COMPCUS® 2k 21s) Salsas eis ea LOA!
Cribricollish wie ace ele ee IOL

INDEX

Cuntullstese ress eres ciaspsecese IQL
GistinctswS Ober meii tr. 106, 190
duplicdtismeeer meron oe et 192
(>. ehoo bhi ei gadis or co MEDIC cites rae 193
STALUSE emcee ees) oe ees 190
LONGIFOSELIS HE omen le ee 190
olfersiiGenmyctyie eas te ers oes 194
TEGALISM stan cesaie isa ae eee 193
SCIGUSeH sat vba clo tis aU Sauoeeele IQI
Tenellusw cee actorsiahie hs slenceste s 192
thigraimimicussS Obs .e).n. sae oe I94
VOLE PaASes a sey iene: ste es 193
westwoodi Bohta. 2.0. 5-.---- 194
TAOATONESHE kee sitet oes Ir, 18
tubulatus................-. II, 18
Tigbani dias aes eras hee 431, 446
TOSULACA i arcie eueredata hetaact austere 431, 446
LAGCENtHInUSsMene nek ees. 107, 213
Scutellatusewtsiciase snes TOW 213
Ie1otheantishite. cs ces cee oe 325, 340
@beninade rie ne stem emia ale 325, 340
WISSOMENES eee scenes cus bee tecoeres 272, 302
CUAL aber Set TAC eal etsrel = 272 302
Goboderes-Schoms ssc cc. cs eve on 328, 373
AHUOMIMalis serena ce ssc = 375
AUSELALIGE Hela tthe ieee ee eee ee 374
GIETIVENUtrISH BOM suis cc ets ane ee es 328
CONPMUICUS paneer oie aus ee lnees 376
flavicornis Gyll....... peer a7 5a.
HUMAMINETIGH ecto a eteneietors = sno = 375
Daa VUULTSHaceteatatetstetsve: stictets cuore 376
Lill ayoni UNS" hats Ses ieee cueeoioe 374
Loboderinus Solari....... BOS aril SiS
DasalistSolatdherraiss ata aa ais sete eh 2y7/2
DIPALUILUS tots sietesieeee se ees 372
Collis lee ot pone oo eens Oe B72
IWOreMalsoterement rats in hs manuel eas 270, 275
Oblate estan etcteteh atl ten she oe 270
Sinmlans)eeeecterere cs cle eee nee Ve 276
Suibsequrahisw nya ccs /he-. st skatcrey a ZO 2:70
Wp Wind wey coisa pees ese 432, 462
Santanennlcay ca). sea dente ds. 432, 463
SUpimetallicayva setts laeest snes 463
Ey damisiPasers fe \.'- 146 Me nee Die22
anoulawB oleh tse sce sees 22
Dalteatar eet: veins chaytarershe ees aie 25
Centralis ys be s)s.as he ete ook 24
CONMUSAR I re aye ele eve gies ater 23
G@ufirangensi cise esters 1s ets Ses 25
LELRUPIMEA se tee etetelslatatee ver taerte « 22
IUtGICONISH Nc iene a ee We wees 25
PACH Ata a Mera ciaislec henson lets te ens lo 23
Davularieninv. (ink. osc sche terres 24
SUSU TSeines yor pertoe scsi e sree, 6 23
VAGIGCLALAM AN Riaies icf cate sd coreners 22
Mra cratmlbpatesirn tosis aks sclotete a orares te ARs
melanops -Chmipeacsa. | cie sss &
IMACEODSI ken + Sie reels asta oto 274, 507
DAGVICOllisies crasseyayverciay server stseset 507

515

Macrorevenar,. ceieraviniter crac 108, 217
ALLOMICANG Ay ae aes oe eee 218
CONVERGES sc mie ete etnausr oles 108, 218
labitibiates ah 2, . ern a ete ee 218
Macrorhiniis batt... esse eee 417
Madarellus Csy...... 33041303.) 39851309
AMAZONIGUSE 4 ay. eke seers neo eee 395
ATIMICOLAM ata cw cesta picasa 395
Ibalteatishey aie wee i as ears sete 3907
Chapadaniwsee: ea cciciscrcisia aia: 396
Fasciatusy Marschic ee ere seer. 307
oblongulusma sneer 306, 397
TULOPICEUS aves: sci sho ety ass evsuakene se 306
SEHIALUISO Siac See cin aah were: 397
SOUCILUSH a orn lacie oer e 395
itruMcabidensSe mie succse feasts se 394
WHAGIIEKGUELSBRYS BE 5 Ga aooewanes 330

INVA AIRSIINT ePresece fates clever oveve exe's eyewerey jai e 323
IMadaropside@sis ais 3 ase eis fects 327530
AbROLUCENSs eyes one ie oar B27 Boe

OH NURYOS Cobar dc Cane RAN EIS CIO TO Cros 362
ODSiGUANITIS ere hese teee ee Seas 362
MadanistSchonvea cls) eelsck S28. 3 70
biplagiatus (Bobes 5.2.29. 4: 328, 378
Chapadeeire init Nays cise aloha, Sate 378
Convinusihabras.. one ome: 379

TAC LIS ee ngs seein re rereroiieh cunts 377
TEGMUCELISHs oes seversiee a Seta tote 378
ViOLEICOSUIS) Ole -mieieee tienes alent 330
NDAD OPRTEERING cs sec cre ave aralienete hey = 492
Madopterts) Schon’... 4... 4-5 493, 497
AKCUACISh Esko oh rea Ore 498

ID THCUSe Aeseeiere ooo eee 499
seniatelluse ies s.30 cee ace 498
talipar Galles se 25 sa dee cet 493, 499
MaAthilian ten rio a cements 2256335 50
GLVErSInOSthiSHe ya tyae 1 ce eee 33, 57
Mecalobanistan sonnei nae: 433, 466
nesplendens\..: 42.1 433, 466
Miegavalliustis..o meas accra I05, 168
Alritarsis| Germs. asses 105, 169
lamatalusi® :. 2 fect cle nd oes 170
MIAGISHEI Se lelaiebadianoee aes atieys 170
LSU AeA ace Meg tee My Pu tues te 169
INVela mp US rere r acres ete orieae 109, 227
COMME ea Ae ee LOO TEs 25
Miclanvo ligt m4 ete te haa 66, 82, 83
Miesothanitisen isis ane S41 eo
SEIMALPINALIG qoutes ey viaite se 434, 485
Microbaridia e erachiececte seis 109, 232
delicatnilay sane tie ee ceee 109, 232
IMiicrocraptusi © an netsce ee ters crete 442
IMcroforaimdiay nn erie ce ener IIO, 251
WiNbiOOTN hus Poa tmac so Oe Tmo 250
Micromad anism ates serrate: 329, 390
COMATIS ye. 5 peice eee 329, 390
Micropalociisee emia eri: ett 104, 161
Page nara y 383 caoenod ol oo coco 162
IMGIGENSS dyenea ccarordaelere ye ARe 161

516

IMATISUCTUS po ciueteuc tse ieys tere
sparsellus: 1:2. ba oases 104,
SUMIMISSUS <anerjo trae, eraeichetone
IMicrostemOtesi:s. «neainte a searchers 102,
humeronotatus Chmp.........
humerosus Chinp i) ya.
Scapulints cryep peiae te uae 102,
WhCrOLOnCUS Hanes ners cine: 273.

basallisseiaeke sels ces cue 108,
IMivelamtiaiy.wsopaceoieseies seats 326,
hispidullay.Ae.0 2% ete oe re 326,
SECUMOSA Is cr slcin Spee ee oe ere
INEeStes' eine! 2 acta meron teearee 110,

Sarpedomi she tevsysiatoe mere cs 110,
INeobaridia ss). sh yoian ca cree eee 493,
AMIpPlitaxsis elas cele eicwe 493,
lateralist cient cae Cio oe
INEogiveniis. 3. creme emis lee 432,
CylindrOldesemmerae cee eies 432,
Neplaxaic tic tan tacris saa IOI, 105,

LO UTS cre aS RO hs cere hd

anleusticollisssmemaceer nies 270,
OChTACEAaR eta ene

ADEUDEUS Gh ts.h tee

auisttalisne ti. aciacae ee eee
chapadanusi®. an sincne sere
densicollistas ceo nee mee
CRCNSHLE. eet cee ees

UNCETEUDEUS iain « csvorieictee eer
lateralign vas. Soules hoe ane
medialigns tia sceieae een sites

LATION se oo ne eke ae 334,
glYLEHIOIGeS sem chinese ces
TEPENEINA ow ee ee cee Deere
sculpticollisie cee one 324,
subuliferatwis tse cece eee
INGtesiaspisiy: tiscsrasnrchacroaeee 325;
ASMer Watt ete eee
fraterculusi sd: cic erie ae eee

INDEX

162 BY StHICS ic erste oer eee 325, 335
I61 parallelals.. 2icite senior 336
162 SOLTOT 6) Siac site wales po s,s 00) ke penser 335
140 Odontocorynus Schén......... LLOwe5s
140 AMAZONICUS AK. iors eer ete ee 253
140 Ccreperus Boh see ee eee IIo
140 fluviatilis ie nyse oe ee 254
308 glabelluces..(. suerte obras 254
309) “Omogonilakc cm. cate ee ee tras
225 Tuiicoris® . [hoe oe eee ED Agas
225 Onychobaris Lec......... 320, 389, 429
358 amazonica oda. sa eee 3890
359 densus Lec... s cs cccks) Sees eer 329
G59)" | @pertes rise asauoere ree Ieee 430, 438
ae siubmetallicusz. 1c eileen 430, 438
2 OPTATINGR snc ne eee 20
267° “@ptatne Base.) lak be ee 2
Sor Palmaris (2asca ee 2I
392° Orthobaridias ~, iss skwe decent 434, 487
re sulcabula oon seca 434, 488
a Orty.cussPascic eas eiei,s ee eee 107, 198
163 cristosus Foe eae concur Rens OS O° 199
164 perdix IPASGshcnahats ciate native eters 107
293 Ovanius. Leen eee neers I04, 153
204 conicicollis bildpete, aie hie Sbeperanetoe 104, 153
295 COnstrictilus: sc aaron eres 154
204 PArVUS. ©... eee eee eee eee eee I55
287 piceolus Ti ditgravardronsttonere ereone ere 154
288 rhomboidellus a seegale S eyageree Gales I55
288 Fuficollis: ese oot res 154
aah Pacomes ite) agovalalGhenshone tote ener renenene 492, 494
285 distortus PP A Neo Oe 492, 495
282 ramifer eA dora nG ac Oc 405
286 spinifer ci). 6 socterear emotes 495
284 subglaber... 20 /...cc acct neers 496
283 Pala copsisin << sien oteo see 104, 158
287 WEEE G6 oon Bg odon aos 0 0 5 104, 158
287 IBAVOCUS Ieee iain a ais aval ueeee Se eES 104, I59
283 Mae xeeMIS Ga as ubaahocooedocd.- 160
283 MEO 5 o Nid dbobob al ss 6.06 104, 160
282 Senlatells.s jan telo stahenve sive siete 160
282) 7 (Pantoteles; Schonia. <1. calennietoeieer Io
235). JRPANTOTELINT: jessie och eeieeee Io
284. Paratishonian ss icici eine Gf, PLO;
284 setulosa’. 0 h.asc sc otooties 271, 203
285: Paragarmia. .... 32. nha eee 103, 145
286 atrolucens) sone cine ies 103, 145
285. Pataperss.. .¢,::..5/00 ake ee Tee
a Paralichnus.............+-++: 493, 496
aoe rubricollis. 4. sas <2 ews eee 493, 497
334 Parallelosomus Sch6n.......... 493, 505
350 Paramadantismm cris reece cess 330, 397
334 complexus erat ap eh Glia ever ocetep Men 330, 308
333 Parapipenis s)-2. so eis eo cerereo ae 330, 404
332 AtLOIIGENS'. sietspetars nde or iebereee ee 405
333 gerobiculatas |e... ocrserac con 330, 405
334 Spissicornisii4s. <p ceae os See 405
336 SUbCuUMEeAat Al as/=\ spars oie eedore nN 406
236). -Parasaldidiaxt surance 197

INDEX

Parasaldiussacccmmcteiciae ss eset 106, 195
brevilsculustiscascc secs 1907
CULVACUS Ae setsiaretersicty oe creo slotaiers I96
@VANESCENS eee cay cidiocis Go esr 197
LONGIPESE Mi AC aeie a aioe aye 196
sedulus semaines aaa: 106, I95
CENWITOSERIS A here elere ners intel 197

Parasolaniaeeaee eee eee 320, 3901
lobatare route ae 320, 392

Parasomeneswniac acdsee sinless 272 BOL
DIGVIFOStLIS. a yeb ktcers scales 272, 301

Parasyprestia sacncm cco aeen 20,127
CaTIMIcollisncenc <csioie slle ves iy Dy

Parathestoniaws)-pec)ese ecco. 104, I50
ODLtECtarhrs ans ete siotntecuae 2 104, 150

Paratorcnseeee as siete ee 273, 316
qQuadniferjcistas,ssis siete ae 273 sary

Parisoscheenus Est... 2 a. © os 325, 344
AMIGTSUUSH et pelcternsaiek Salonen aoe ee 350
bakeriiGayn RG ck weet secretes 352
brevicollisne urine sence 349
Drevipennishrincen sect teas 349
DEUTMNEI PEs «sto case oeescione ier 350
GbE a Hie Aine Ge roman ane 351
melaneussparcten ecto noe a ele cles 351
MATUL See eyey reser are shale 351
MISTIME Sete. trsielefo nis ysis ve ee cushs 351
ODESULIS He eM aPa s cies aoa ae 346
OV ATMS leceys uses sre iecaiehs,e ate el apiaitet 348
IDANCUS PSUs eah cnc meee reser, « aakeheyera 350
Dlagiatuste yas i6 faire Pale airs 345
DUNCCICOlISh a cok eis te. Aeneas 352
Givglarishe ree miners o.ord cheieeisteoeea 353
FOLUMGICOMIS rere iis hoe 347
eb EV CTUIS et nerd Cae eRe cnn Cee ere ce 347
Gerais alomormatmrconae Cameos 349
Clu XaWbtobois 65 dap oonodbeec 346
Subsimiligmnw ceric oma eens 347
Sulcatillishin ses Cordini 352
SUCUTANIS se ayers lore ayers ercucea sere ests 346
VIESLICUISRraatersone’ aie. 6 ora gt aula eer 348

Beclawiar create as eee ee 108, 224
HispIdicollismmy-npiie seek 108, 224

IPeclaviopsiseis sche cree aoe 108, 223
Dlanipectilsssercias see I08, 223

Peridinetus; Schon, . 5.2 <)s <1 «aeieeiee Aya
CanusiGhmpes sein) oa 2 eockerianatr 9
CKeEtacelSi Pass. Ss. sesaon crete 9
GistinetisiPasceas san craic 9
PCUAGORICUS tern he onic toi tee 9
ANCE ECU ome oie hee eel Sia eres ue waa 8
MLOLACU SHEA DIch cys) + ce eeieiiains 8
IFVBIDROnITE higtasd Gmocleo pets 8
MALMOrAtus Dey. secret ee ec 9
ARV USAv eyo: ere ae tae sista lens 9

IDiperiserrver tne ter a oie ois es 324, 330, 403
CONVEXICATIGAL «acca. elec oe 330, 404

Plasiliiciee gers stirs rss oa, eioes Pouce ctens 431, 445
latinasust ore ice es 431, 445

Plasiliopsiseinem ce ociaen cients 431, 444
AUISITOPMMG gees Scie nels ele 445
NEVA Ran coterseehte ceay clarerstoroneosts 431, 444

517

Plesianonesty vm. ae eee eae LOyaL2
ADPUSEICONISH ee ere IO, 12
POlIStES as Mceth caer eo cetera oe 326, 354
Oblongatuch seein ener: 220.5855
IPOIpOnEsHy Wyk Coon ee 328, 370
RE CELISE cue sues scar ereiel ornate 328, 370
PANtISUS Wey .<cyaaate eee cet 432, 449
OVINOSENISS 5 foes > fe ae ae 432, 450
PTOGINUS arwey< te cies tie cece ae 335.157
ALTUPDUS ern ees certs A otee Aet 33, 58
GiISCOlOoRwy Os eusae Sas era 60
RISE CUS py area eoioet cee ee 59
ODEUSUS acres ele eree 59
SCUCICUIALUISHE) ae ses sis oe 60
SELULOSUS HEI een oiaitty ee meee BL, Or
Subquadtatusmer neces eee 58
SUbSulCatus eye. cscs te eis ee 59

BV CTTLEX nets Says on sees eee ne ake 61
Pseudobaniswlecs.. .4a46 0; 429, 439, 450
callosipennis Chmp........... 442
carinipectusi€hmpi4.-555 502. 442
eylindricollis'Chmpy.... 5... .: 442
mutabilis; Chimps ses eee nee 442
JESSOP AMA 6 5 Hi Wo wo oe 103, 140
CIEE Fn ent ane momen G Bek 103, I41
PSedomadanlismerns seccis eee 328, 380
banbatulushey.;serarrcimarcot ee 381
Conicicollist- ti sesets sore 383
LONEIPES tay e.g Nein pene Se 382
MIG S eS ake oe asters « 382
PANTENSISE Wve a evnencs: evel Meee: 382
DIOGUGEISH ty cise a ners 383
quadripustulatus Fabr.....381, 384
VAVICUISHRS coccinea dc. teelam aera nt 383
Inseudopalocusse sant mec elec 160
PsenudoptattisuGhmp:...4. sees 21
dentipestChimipee in seis eee 21
Ipseudorancean ier sien 271, 207
SDISSILOSULI Seaeeeieieeeie Cr ts 2705 207
Pseudosaldiusamemen ase cee ee 106, 183
CONJUNCCUSE sscioe ae cee 106, 183
IBseudotorcus)s wee ane ose eee 272503 TA!
MS Etalligie ire ee so enetole cue 273, 314
PSIONaAt eta tot wae Neo eR 274, 319
Carintilosae wai. ieee 274, 320
Gensaiees Hair. weikie oh eek anor 321
OPACA ea hh Gib wane runs aE ea 321
Pycnotheantishacrcic ces satires 325, 343
CRAT ALA ofepe el torte ouseen ey rene 344
Lobaitals testa ste ictepiche test Creeks 344
Valens wit se nares see 325, 344

Py cnambatess 4 decussate ee 4, 6
leopardintishys ssn: seni eee te 6

Py CHODICENtHISE aes eee eee . 270, 276
GIVErSUS Heo ecto erone ios 278
PAVAVESEISH ee Un nin aio uieieneroerer 279
TIN OL she Neto eect eee 278
MASON era ehocre nora waracstterebtetolce ocoke 277
OPENEUG Siacen. cotvreschs waete eh ck Kerretenaeer 278
ONMOIGETISH ESE seen eka sie a 278

518
recticollis.an 2G Gee eee
FOStralis',.:ocdisaw sek ee eee
TULESCENSie, sche Soe
Pycnorthorisiy. so oe eee 320,
hispidulac sissies 320,
Radamussarschi ase seine 331,
atrabiswkarsch yeas eee
FASLIGIOSUS Mire ie ene oe
obsolescens: aha eine eve
Ranceatys: Son dante Acree ZT,
Darviclaval. ineene ee eee 221,
Semitestaceas..-mnius aoteer ee
Ranceoma): 2 eke eee eee Ps frys
Piatt Foe S's oh adda Seat 272,
IREMETLUS.\4,5 eemce etae eee 108,
Marsinatisnee eee pee 108,
REVEAL eee 108,
TEMOLAL. don catheter cis
Sexualisance ee mare ee 108,
Reveniopsisnpracine sacra cae 108,
Sehiatirostnsemer rent see 108,
Rhyncheenus timidus Oliv.........
Un ailatis; Saye serie ole
IOAN Weve Mtoe ere eee IOI, 104,
TUNPES e araeia hoy ee ee 104,
1S aig Noy ov Esa Al glat yi yin Peet een 82387327
Obesella dé...) 'h. aaa eee eres
scutellatai.i 7. jock oe tee B07.
Saldiopsissn: vce cane 106,
APMAatCay.. occ eee ke ee ee 106,
Drabatar cs weancmeke meee ee
Saldius te dnb ncn ee eee 107,
AiIMinaliss eye eee eee eee
mMeequalict =... cet, buee ere
MUIXCUSE coh sae eee
Deadavulicoliliishy vice eee
TUSCICUS!. FS alicia anes eee
Semuluciduswers pine 107,
Suleatulasy! 4 iso cues coe ee
Sclerobaris, 2eceric dc chro Se eee 433,
DICESEATIG:: one eictsvans) cateles trates
PE Sallis earnest ave each cree ne 433,
UGTA ee tee ests a eee
Selasellawyr rhe pew sca. Sea cee 108,
CUNEI PENIS) mee ete 108,
SibanopsiGsyeuese hase nee wleh
AMPUSEA aye cneiene erties id iaeareeeteae
finitinnia MA oo ze eRe
Interimediatiy sce - te oe ee
DICEIDES fie hae eee ee
pistorellage aa he Cee
puncticolliss seer cee
SUDtIIS ad Neneh ee
Sibaniopsiday.) scsi et eee beter 278),
GCIs Nr) Satacntsec ion ene
PUP IMASTIG ee Eee ee Pie tr 273,
Sindesus ea. eee eee 431,
disperssi:: fac ae On cee 431,
Sitabia. wa ckieeiaa are B27
tindulatais< sos eee B25

INDEX

270s) PSOdESIAg hm enclaiete ee e 271, 290
280 brumneals....% 0.528 os) Ge eee 201
279 MAMA.,.o\s1ea wtapeleee \oake, oer ee 201
388 SDALSAn yay treneeitaet terete tenets 27 Zor
380) SolaniasGhmpyyer.) ae eee 330, 392
4It chapadananin.. 2. a de ee 393
230 Curtulay Boh: aan eae 330
412 pingiiculan inset eee 393
4527), (Solanopsisname aon eee 330, 410
206 elusa.i .igints bitane | eee 4II
206 nanellan.. aoa cea eee 330, 411
207 ‘Somenes:. (tae. s. eo ee 272, 302
208 obtusus¥ 52 7h oo eee 304
299 TESESEUSE Fr sheer oce etre ren 305
225 SOSDES 3s oh. hater aes ccavans Cee ee 304
226 Spinifer ich 2 Sate ca eee 304
219 Subintlacusre.mi tase 272, 203
220 SONNEZLINI(, (Sa ero/sies.ct tere eae 321
220. “Sonneétinssc ho cco Soe 321, 429
216 binaritis 2 as 22 wo eee B22
216 Conicicauday. 1.0. eee 323
434 LONPITOSELIS: .fet--o ee ee 323
330 SPEFMIGIUS Chiene, s cia toe eee 78
157 Spolatial Os Satine eee 103, 145
157 Kracdata ii. sc eee Ne 103, 146
304%") ‘Starcus:. cn sen eee ene 104, 162
365 TUSULOSTIS\ a2 eed ets eee 104, 163
365) . Stegotes:.- 1c: eee oee eee LO2,, 213
181 ACUCOF AS Lsnoes etn oe ee 117
182 Agrestigu. wc He seo ee I16
182 anthracimise si) cae ee eee 118
199 ADEUS... 5-55. ais a dni ee ee 128
201 atromicanstin.n see ee eee I22
201 bicoloratis® vos. ee 132
201 Drevirostrisia. > asec eee 123
202 Campanulatusiy. 5 oe eee me
202 CATDOY: 031.45 oe ee eee I16
200 collucens ..... 2.45.0), Gee ee 118
202 COnTUNCtUSHT.ct.--)sacie ee eee I2I
468 COnsentanellsnsse ci eee 123
469 COMMAS WHS So dioaco hone ooh ooooD 122
469 COLONAtTUS)... s Sane taser Ce ete 129
469 COPUSCANG!. 5c fitorteita Je: eyaueuenetshe ie eee 115
220 GRASSUINS) ev sien aioe 129
221 Gebilismn ity sve: See eee I24
312 GECeNS Teh cisatcsstels ot eee 120
313 GECOTUS ep hare us, 2) se ere ee 130
ane GeGhetusn ets saci. sake ee 118
313 GCM TOUS 155) etc hoe 132
313 GivisuSms Sins ene ee 130
314 PALULISE.2 begets = aoe ls cys Ae 125
312 fulvicormisat.- Lee eee ee 115
314 gibbicollis. 3. 538. A eee 127
311 gibbosus:... a: el) heen I27
311 grandicollishs {acersace eee IIQ
311 stavidullis...t:3% Rute I19Q
440 he bes... aoe ee ee ee I22
441 HOVEStUS Wnt. cao te eee 127
363 INCUIEUS ..% eatin tere eee 118
364 INEPEUS:« 3) 3) castes eae ee I25

INDEX

ThaYS) OEY n.8 o wild cio eco UIE oe 120
INSGIENISHE, wale res ey rene hake ers 124
INSWISUIS Ry okaie eee een el eteucled steers I24
lectabilismecns ieee cas a ose I30
over sebW ciowg ain en Ooi pba Coreen 114
Genii badowns como ooo eaes 128
pallidicollis7Bohserssec tee ae 132
MIFUETSY b op poob oon Odo aud 117
IGE CUTE niou Bio.o0G polo olor Cocco ino I21I
THOMUDICUS Her aye seer ts 102, II4
pAbe Holts) ISON 5 sgosoenanancoa- 131
sanguinicollis Germ........... 131
Sat yGlS-ee yell emseerttey=) vor aehekel 128
SEV CHUGH Ie eran) ciel ates ese eae 125
SEMCUSi ae ro anne crear aire tas stents ake 126
Cio wAMEieS oo doo mee oeeease II5
E@UIUKEOTAIIE, 6 Ho elmore Hee Oe 116
CenllisEMatuse meres: eer 126
testacercollichraieie aie cer rer 131
TGUTI CUS ear e a eae ocho che eral - 07
EHISHIS Cs et tee Lae ee 126
Ate eey ell) Gls epg: Choke Dio. okie olerroet orn 120
Sfeszouldiusmaer is eee 102, DRE
fASCIALUS eta ahs crate ae TOs) ek2
Stesocopslsremrteie cio a yee nr 1702) 133
TUM CICA op cetereite seals Soave s ©: TO2. 133
Stenohulpesemerice vcs B27. 302
ATOM, 65 oo boaopomeeos BHT ASR
SHEERS OGIO SS o o.oo oloe Bombs pees 433, 470
CONSESSOR Ae eo a ees 472
GIANG S 6 6 gd oid oe Dap oa cE 474
INLINE oo poem oMeobeeaoee 471
ThaM/ORESSH Io cia Suasdechole ones mero 471
interpunctata Germ. ..--:..-- 473
metallica sons se. oe oe 433, 471
(UNOS a pis aikarcinad heroes coon eae ron 473
FORA ATADUE cuca Chose Gia CuO ERC OR NEO A473
Sette lataewewanean ewes oes ale teva hers es 472
Stechopantdia ns eepeitiete ms 22. ete) a 104, 155
OVALE ey veeers eee eeerscos 104, 156
HO CHILC Eom wats fe rete to slsioest ouster = "150
SEDALAUA PI hetcine csc c terials 157
Stethobaroides Chmp......... 22 Ars
muciventrs:Chmp.. 4... --2. Baik
SCUECMACUS Mae ey eile ccs erecsk= 413
Stethobanropsise serra oo 105, 172
Agjelamilobats..5 Wias Gaersimso do oe TOS LS
AGMCELINIE Malay carey ie ele ees: 173
LODUS GLU een aeeceretinr: EcaeseLe sicueue 174
SVAliteTsl Tcl meee ytetee bape nit het et ae ean cv orton ia. 173
Stripemiarterrtorrs etree teeters Ges 320, 385
BIKA EUs ooo oon sae Ae '.329, 386
Strongyloves SchOn es. a 493, 499
Drachialiswe Olas seels oeus coc 501
DEEWILOSELISares tis acre rire = o's 501
MUIALEM AlN SIS artes ris rer oe 500
lemimiscatusy Olen wae ane 493
parallelis#@bmip appari a 501
Cuadnicollisney -nitrioe cias = ket 500
SQUaAMANS SOM nw oy cs iene coe aoe 501
SUMMITS ees Cee con Geeks 108, 215

DlaeyL WIM Seyret 108,

519

Somes ss oane asggcegon scons Dit, Po)
Amp licollisemmweyercisitee reer 2130
CAarINOSA dot eae a ae oe eles 31
Chapa daticaeet ti ener en rae 30

SID DICOl lisence nat er aie rorn 31
ObyjeEctaeners soci weit citi eer 30
Tepes Debs oe can amacknoce nex 417
Menemotesiya acca ate pe Oe er 103
abdomiunalisin sa) ctu eter easel: 143
COMES, sob oop adodor on aa gd 143

EIA MeENIGl. nso binogodoor 103, 143
dienemocidest a miceqeiicranie iinet 103, 144
Gissimulans: 22/45 4-6 asic seks 144
OEDACUS tence Gee ces tele etereien ions 103
MRernoOvalsrice <n oe cree ena nee 106, 188
Dip aKeteal ier teeter mee 106, 188
Mhestaleheals. cssticrnc = pation B25) 34:
Puneticollisnarc wai 325.34

4 Marshal (on A eee en COIS Ona 434, 483
DECHOLtUS syle ere 434, 484

A Malaria oe hae acd ciieoun no.c-c c 325, 341
DAHON pgodousosacesoucen 342
TFhompo1dea)..). ace. sence es 3254 343
Sta till avers ol oceisnel crotetcber enna steser: 342
Mhestoniae gay. sates cceucrs cece 104, 149
SPaksa nce eee etches te ees 104, 149
MONCSIAt Acres eee aera alee BIS Soy)
AMAZOMICAT eae aaa rool 339
Chapadandiers afters 340
elalbialeecne mis eisai 325, 338
lateralistv;..s ees Seon G aM ans 339

MEG alIS, od) Se digest eno 338
TODUStUlalsceeews chars Cato eeiereterer: 339
iilloyonalokignd aa Nottie o cobs Gow 340
SRORCAS DISAy acne eiorersoke eaeeen 315
ARGECODINSs At eaeten eee eration 273, 309
SCUMptilisnm ee esses cea 273, 309

AN Cis 6S.Gu mh oe debe On on pee D7 ness
PASCIAEUS Mets, cretemera entero 273, 316
TIN OLE eee eta Ruma 316
SUbdendatuse ele ase 316

41 Nabeventlc gn eno ob Oo cai oma 94, 99
BaSalligh Bao ee crevasses onic tate see eon 100
TECEA es tec isy Hence ays sh wlerete none mere 94, 99

‘GI PESteS aie cestode ee see oe its 7)
Creeley sociaogaco ao8 coe Bite ahs!

AMA NSONG 6 bo copo eu aD cored 3209, 387
TN CELLAM ES CCL Nene) ole 388
(ING TIENES 6 6 gooeoo gcc ec 329, 388
IMUWEUWSS > obuoanbovobomOs eae 329, 386
falbbgosina tina enn Gols Groreero abears 329, 386
Ape dacinweccaogna ke 429, 434, 481
TEVEUSA sa ese et ees 434, 481

AR plo RIM shone daleae ses oac 22759300
CIECEAR enlace retention 227. 307,
HEIGIOMOR, Gh ba oc wo adobe ooo er 367
AGIATIOM A ey coe a alicpeisveheachononete cuencbotte 94, 95
Chibtatance cece ree ees 96
SDISSILOSERIS Me pucntse tee eet 04, 95
ARiblokesouim arch euke iat Dra Olam onie.o Oar 103, 148
bicoloLrata ys sseaoe el aree 103, 149

520 INDEX
e UGENIASPIS#e ios cies Sod hel chet TOS, eae” Valliusie.s. sue ees cee acento
4 nasatalatehand ss eh uo Romeo 148 GISPEPSUS Rs oH ence Sccecuenensnsere
alstih cates sie peledstalen crafincatattawen sits 148 THICATS sales ee ee
Valdenusin ics suas, ose reet 272, 306 nasutustnt wea wer
ARPUS HUIS Perens thay keketeteeaeerel gel: 308 Diseipennign a) a ac cere
#0 et atl a Ree SEN ei S97) 3 enigma iBasct alee sock ee
enters tty ined Zalentes <0 adult potest
TGS ou aa 272, 307 _perpolitus........+++--.+5
PUNCEIVENthiss 4 srlieie hoe he 308 Zalinus.......-....-.sseseeee
WValliopsida nC tion. eet omen 207 femoralis..............-.
Valliopsis! ) so: ecee tee 107, 207, 219 parallelus................-..
Prin! Wk hee oa Pee e200 DAEVUUG. Hsin ois ste eee sie
To NAL Noe Waren ten r anette 209 thoracicus: (i. heeeee nee ee
canpannlatayeee nema 208. ‘Zathanlusspeise scien eee eet
tio me aso ae wo ge os Baie 209 IVraAtuss cis ee eee eA
yobs Sepa signa od odo 210," ‘\Zygozalestesmme midair
ei fe ts Coltete ones ePaleteMonelalwoate’.© jate 210 Oblonelishe eee eho:
Rar en tens Otic ia ad 208 ENOFACICUS!) sels yerer ces helene eigen:
ELE a cee hts a a a ane Cuber etre ere eieeke ore ohare nite
Brent oni oc ame eS 211
squamipes Germ.......... 107, 208 ZYZZYVA.- eee v ee secre e eens
Pi Guo, an On 2I1 ochreotecta.... +--+. ++5

Issued Nov. 25, 1922

ONL

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