Occasional papers of the Natural History Society of Wisconsin

_ PAPERS

_ OF WISCONSIN.

VOL. Il. No. 3.

DIsfRiBUTED BY THE MILWAUKEE

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MILWAUKEE:

Pusric Musreum.

PRINTED FOR THE SOCIETY.

1895,

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OF THE

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Flermersrirus (,ROUP

OF THE

JPAIMUULW AIT INUD 48,

BY

George W. and Elizabeth G. Peckham.

MILWAUKEE:
NATURAL History SOCIETY OF WISCONSIN.
DEC., 1895.

HOMALATTUS WHITE.

The spiders are small or rather small.

The cephalothorax is high, and is about as wide as long. It
is highest and widest at the dorsal eyes. The posterior slope is
abrupt. ‘The quadrangle of the eyes is very little wider behind
than in front, and at the widest point is more than one-third
wider than long. It occupies two-thirds of the cephalothorax.
The anterior eyes form a straight or slightly curved row. The
middle eyes are slightly separated and less than twice as large
as the lateral, which are well separated from them and are
placed farther back on the head. The second row is plainly
nearer the first than the third row, though not close to it, as in
some species of Rhene. The dorsal eyes form a row which
isas wide as the cephalothorax at that place.

The relative length of the legs is 1423 or 1423. The first
and second pairs are the stoutest.

We have two species of Homalattus, rusticus and maccuni,
both new, from the Amazon.

When White founded the genus Homalattus in 1841, his
type was H. pustulatus from Sierra Leone (Descr. new or little
known Arachn., Ann. and Mag. of Nat. Hist., VIL, p. 476).
His description is very poor, but he gives a figure which shows
that the eyes of the first row are all separated. In Rhene
flavigera (Die Arachn., XTV., p. 86), the type of C. Koch’s genus
Rhanis (which equals Rhene Thorell) the eyes of the first row
are near together and the middle ones are touching. We have
neither of these types, but we find in our collection three closely
related but fairly distinct genera. In Homalattus the first row
has the middle eyes sometimes near together and sometimes
well separated, but the lateral eyes are always well separated from
the middle, and the quadrangle is very slightly wider behind
than in front. In Rhene the eyes of the first row are near to-

gether, the middle ones are usually sub-touching, and the
159

160 PECKHAM. [Vol. 2,

quadrangle is always plainly, and usually very much, wider
behind than in front. In thethird genus, Anamosa, the lateral
eyes of the first row are well separated from the middle eyes,
as In Homalattus, while the quadrangle is plainly, or very
much, wider behind, as in Rheune.

Most of the Australian species described by L. Koch under
the genus Homalattus would seem, from the drawings, to be-
long to Rhene. Of Thorell’s species, two, Homalattus margar-
ops and Homalattus hirsutus, seem to belong to Anamosa,
while the others would probably fall into Rhene.

HOMALATTUS MACCUNI SP. NOY.
Plate XV., Figs. 1—1e. ’

g. Length, 5. Length of cephalothorax, 2.5; width of
cephalothorax, 2.5.

Legs, 1428.

‘The quadrangle of the eyes is one-sixth wider behind than
it isin front. The first row is very sightly curved. The cly-
peus is somewhat depressed between the middle eyes of this row
and the falces, which are prominent, stout and vertical. The
lateral eyes of the first row are plainly more than half as large
as the middle eyes. The sides of the cephalothorax are ver-
tical.

The whole spider is dark brown, with a covering of white
hairs, which grow long on the clypeus and on the anterior end
of the abdomen. There is sometimes a tinge of red discerni-
ble in the hairs just above the middle eyes of the first row.
The face is covered with short, white hairs. On the back of the
abdomen are six indented dots, and over these the hairs in un-
rubbed specimens form snowy white spots; near the spinnerets
is another pair of white dots, and below these and extending
around on to the lower sides is a series of more or less distinct
white bars. The metatarsi and tarsi of the legs are paler in
color than the other joints.

One specimen in our collection has the integument almost
black and the hairs of a much purer white than the others.

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 161

This spider has also a little bunch of pure white hairs at the
posterior end of the abdomen just above the spinnerets.

We have several females from South America in the Smith
collection. The exact locality is unknown.

HOMALATTUS RUSTICUS SP. NOV.
Plate XV., Pigs. 2—2d.

6. Length, 3.8. Length of cephalothorax, 2; width of
cephalothorax, 2.

Legs, 1423; first pair much the stoutest, with femoral and

tibial joints enlarged.

The quadrangle of the eyes is wider behind than in front
by the width of the dorsal eye, this being less than is the case
in Homalattus maccuni. The first row is straight. All the
eyes are well separated; the middle are larger in proportion to
the lateral eyes than in maccuni, although they are less than
twice as large. ‘he clypeus is narrow and the falces are stout.
The sides round out a little outside the dorsal eyes and then
fall with a shght slant inward.

The body of the spider is black with iridescent blue reflec-
tions. There seems to have been a covering of iridescent scales
upon the cephalothorax, and of short, white hairs upon the
abdomen. The abdomen has three pairs of impressed dots.

We have several males from the Amazon, sent to us by M.
Simon.

The drawing of this-species gives the front view of the
cephalothorax in a tilted position, so that the first row of eyes,
which is really straight, appears to be curved, and the quad-
rangle appears to be very wide behind, which is not the case.

RHENE THORELL.
Plate XOV;, Figs! 32-3).
The spiders are small or rather small.

The cephalothorax is moderately high and is wide, usually
wider than long. It is not convex, but it slants upward from

162 PECKHAM. [Vol. 2,

the first row of eyes to the posterior end. It is a little contracted
in front, is widest opposite the dorsal eyes and is truncated be-
hind, having a wedge-shaped appearance.

The quadrangle of the eyes is usually very much, and is in
all cases plainly, wider behind than in front. At its widest
point it is one-third wider than long. It occupies two-thirds of
the cephalothorax. The anterior eyes are usually small and
close together, forming a row which is straight or slightly
curved. ‘The middle eyes are nearly twice as large as the lat-
eral. The second row is close to the first, being from two to
four times as far from the dorsal as from the lateral eyes. The
dorsal eyes are much farther (sometimes three or four times as
far) from each other as from the lateral borders,and form a row
which is as wide as the cephalothorax at that place.

The relative length of the legs is 1423 or 1432.

Of this genus we have in our collection Rhene cyanea
Hentz, described under the name of Homalattus cyaneus in our
paper on the Attidee of North America, p. 86; Rhene insularis
P., also described as belonging to Homalattus in our New
Genera and Species of the Family Attidee, Proc. Nat. Hist. Soe.
of Wis., March, 1885, p. 23; and two new species, callida and
vaga.

RHENE CALLIDA SP. NOV.

Plate XV., Figs. 4—4a.

2. Length, 4.8. Length of cephalothorax, 1.9; width
of cephalothorax, 2.

Legs, 14 23; first pair stoutest.

The quadrangle of the eyes is very much wider behind
than in front, and is one-fourth wider behind than it is long.
It occupies three-fourths of the cephalothorax. The sides round
outa little in the anterior part. The cephalothorax is nearly
square, and is truncated behind.

The anterior eyes are small, in a straight, compact row, the
middle being barely twice as large as the lateral. The second
row is narrower than the first and is close to it. The dorsal
eyes are on the sides of the cephalothorax. The falces are ver-
tical, short, and rather stout.

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 1638

The cephalothorax is dark red-brown, with whitish hairs
growing thinly on the sides and around the eyes. Looked at
from in front the anterior eyes all seem to be surrounded with
red rings, and the clypeus is covered with long, whitish hairs.
The palpus is ight brown, with white hairs. The first legs are
dark brown ; the second, third and fourth pairs are lighter, with
black tips and black rings between the tibial and metatarsal
and between the metatarsal and tarsal joints. The abdomen is a
lighter brown than the cephalothorax, with four indented dots
on the dorsum, and seems to have been thinly covered with
whitish hairs. The spinnerets are short and are scarcely visi-
ble from above.

A single female from Calcutta.

RHENE VAGA SP. NOV.
Plate XV., Figs. 5—5e.

$. Length,3. Length of cephalothrorax, 1.5; width of
cephalothrorax, 1.5.

9. Length, 3.3. Length of cephalothorax, 1.5; width
of cephalothorax, 1.5.

Legs in both sexes, 1432; first pair plainly the largest,

especially the tibiee.

The quadrangle of the eyes is plainly wider behind than
in front, and is, at it widest point, one-third wider than long.
Tt occupies fully two-thirds of the cephalothorax. The anterior
eyes are in a straight row, ail touching; the middle are less
than twice as large as the lateral. The lateral eyes are a little
smaller than the dorsal. The second row is a little nearer the
first than the third row. The third is as wide asthe cephalo-
thorax at that place. The cephalothorax is flat and much
wider behind than in front. The ocular quadrangle seems to
occupy nearly all of it, the thoracic fall being steep. The sides
slope inward from the upper surface. The falces inthe female
are small, vertical and parallel. In the male they are divergent
and project a little, and are rather long, with long fangs. The
clypeus retreats from the first row of eyes.

164 PECKHAM. [Vol. 2,

The female is medium brown in color, thickly coyered
with short, yellowish-white hairs. Our only male is of amuch
darker brown, and has had the hairs nearly all rubbed off. The
first legs are brown, excepting the metatarsus and tarsus,
which are pale, witha dark line running along the inner side;
the other legs are pale with dark rings at the joints. In the
fourth leg these rings are jomed by a dark band, which runs
along the upper surface.

We have several females and one male from Para and San-
tarem in theSmith collection.

The small size of R. vaga and the position of the second
row of eyes distinguish it from other species.

ANAMOSA GEN. Novy.

The spiders of this genus are decidedly larger than in Rhene
and Homalattus. The cephalothorax is rather high and _ its
upper surface is shghtly convex. The thoracic part remains
on the same plane as the cephalic for a very short distance be-
hind the dorsal eyes and then drops abruptly, the posterior part
being overlapped by the abdomen. The widest point is at the
dorsal eyes. The sides are vertical or nearly so. The cephalo-
thorax is wider than long.

The quadrangle of the eyes is plainly wider behind than
in front, and is about one-third wider than long. It occupies
fully two-thirds of the cephalothorax. The eyes of the first
row, which is straight, are all plainly separated, the lateral
more widely than the middle. The middle eyes are nearly
twice as large as the lateral. The second row is much nearer
the first than the third row. The third row is as wide, or nearly
as wide, as the cephalothorax at that place.

The relative length of the legs is 14 23.

The type of this genus is callosa, a new species from the
Himalaya Mountains. We have one other new species, incon-
cinna, from Trinidad. As has been already stated, we believe
that Anamosa will also include two species of Thorell, Homalat-
tus margarops and Homalattus hirsutus, Ragni Malesi e
Papuani, L, p. 629 and p. 682.

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 165

ANAMOSA CALLOSA SP. NOV.
Plate XV., Figs. 6—6ce.
9g. Length, 7. Length of cephalothorax, 2.4; width of
cephalothorax, 2.6.

Legs, 14 23; first pair plainly stoutest.

The quadrangle of the eyes is very much wider behind
than in front, the cephalothorax bulging out widely at the dor-
sal eyes. The first row of eyes is shghtly curved; the eyes of
this row are all separated, the lateral especially ; the middle
are about twice as large as the lateral. The second row is close
to the first. The dorsal eyes are larger than the lateral, and
are placed on the sides of the head. The falces are vertical
and stout.

The body, falces, palpi and legs are all dark brown, covered
with a mixture of coarse, white and yellowish hairs. On the
anterior sides of the cephalothorax there are some long, whit-
ish hairs.

We have two females from the Himalaya Mountains, col-
lected by Mr. Oldham.

ANAMOSA INCONCINNA SP. NOY.
Plate XV., Figs. 7—Ta.
?. Length, 6.5. Length of cephalothorax, 2.4; width of
cephalothorax, 2.6.

Legs, 14 23; first pair much the stoutest.

The quadrangle of the eyes is one-fourth wider behind
than in front. The first row of eyes is straight. The middle
eyes are less than twice as large as the lateral, and are a little
separated. The lateral are well separated from the middle and
are placed further back. The second row is narrower than the
first and is twice as far from the third as from the first row.
The dorsal eyes are large and are placed on the sides of the
head. The falces are stout and vertical. The maxille are
broad and heavy; the labium is rounded. The sternum is
narrow in front, wide and rounded behind.

166 PECKHAM. [Vol. 2,

The whole aspect of the spider is clumsy and thick, the
cephalothorax being short and broad, while the abdomen is
very large, much wider than the cephalothorax, which it over-
laps.

The general color effect is dark brown. Looked at closely
the cephalothorax is seen to be black, with the sides covered with
rather bright yellow hairs, and two narrow lines of yellow hairs
down the middle. The abdomen is dark brown and seems to
have been covered with yellow hairs, which, in this specimen,
are largely rubbed off. Under alcohol two or three pairs of
black dots appear on the dorsum. The falces, palpi and legs
are dark brown, with a good many yellowish-white hairs. The
first legs have the femoral and tibial joints considerably en-
larged. The second, third and fourth pairs have the proximal
end of the metatarsus light yellow and translucent, while the
tarsi are black.

Although we have put this species into the genus Anamosa,
it does not agree, so far as the general shape of the cephalo-
thorax is concerned, with the other species, callosa. In incon-
cinna the sides are gently rounded, the anterior and posterior
ends being about equally wide, while in callosa the anterior
end is much the narrower, as may be seen by the drawing.

We have a single female from Port of Spain, Trinidad,
sent to us by Mr. W. E. Broadway.

BALLUS C. KOCH.
Plate XV., Figs. 8—8b.

Small, thick-set spiders, with the abdomen not much larger
than the cephalothorax.

The cephalothorax is rather low and is a little longer than
wide. The sides are vertical in front, rounded out behind,
widest opposite the dorsal eyes and contracted a little in front
and more plainly at the posterior end. The thoracic part does
not slant in the anterior half.

The quadrangle of the eyes is a little wider behind than in
front, is one-third wider than long, and occupies from a little

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 167

less to a little more than half of the length of the cephalothorax.
The anterior eyes are usually close together in aslightly curved
row. ‘The middle eyes are nearly twice as large as the lateral.
The second row is sometimes nearer the first than the third
row, and sometimes half-way between the two. The third row
is as wide as the cephalothorax at that place. The eyes of this
row are further from each other than from the lateral borders.
Sometimes the first leg is longest, sometimes the fourth, but the
first and fourth are always longer than the second and third.

Ballus is closely related to Homalattus and Rhene, but the
cephalothorax is lower and the cephalic part is much shorter
in proportion to the thoracic.

The type of this genus is Ballus depressus Wlk. The best
description of this species is that of Simon in his Arachnides de
France, Vol. IIL, p. 208. Weinclude in the genus Ballus the
species armadillo, enescens, tantalus and sequipes, all formed
by Simon, and youngii Peckham, North American Attidee, p. 87.

BEATA. GEN. Novy.

Stout, medium-sized spiders, with the cephalothorax
rounded.

The cephalothorax is high, and is as wide as long. The
widest point is just behind the dorsal eyes. The sides round
out widely from above below, and the upper surface is convex.
It is not trunacted behind.

The quadrangle of the eyes is one-third wider than long
and is very shghtly wider behind than in front. It occupies a
little more than half of the length of the cephalothorax. The
anterior eyes are large. They form a straight or very slightly
curyed row, and are near together, though not quite touching.
The lateral eyes are a little more than half as large as the
middle. The second row is a little nearer the first than the
third. The third row is plainly not so wide as the cephalo-
thorax at that place.

The relative length of the legs is 1432. The falces are
long, stout and vertical. The abdomen is thick and rounded.

168 PECKHAM. [Vol 2,

Beata is easily distinguished from Homalattus, Rhene
and Anamosa by the shorter cephalic part, and from Ballus by
its widely rounded sides. It is represented, in our collection,
by a new species from New Grenada.

BEATA MAGNA SP. NOV.
Plate XV., Figs. 9—9e.

9. Length, 5.5. Length of cephalothorax, 2.5; width of
cephalothorax, 2.5.

Legs, 1482; first pair stoutest, with tibia enlarged.

The cephalothorax is prown, covered with brownish-white
hairs, which grow long on the sidesand around the eyes. The
abdomen is brown, with a thin covering of whitish hairs, there
being a fringe of them atthe anterior end. On the dorsum are
some pairs of spots and wavy lines in pure white, and toward
the posterior end are two chevrons.

The legs are banded with lighter and darker brown. In
the first pair the general color is darker than in the others,
but the patella and the proximal end of the tibia are covered
with pure white scales, while the distal three-fourths of the
tibia is dead black, without scales.

We have four females from New Grenada.

COCCORCHESTES THORELL.

Very small spiders, resembling beetles.

The cephalothorax is high, and almost as wide as long.
The upper surface slants upward from the first row of eyes to
the posterior end. The sidesslant inward from the upper sur-
face; they are almost parallel, the cephalothorax being a very
little wider at the posterior end.

The abdomen has a rounded outline, and is about as wide
as long. The cephalothorax and abdomen are formed to fit
closely together. In some cases the posterior end of the cephalo-
thorax is hollowed out and overlaps the anterior end of the
abdomen, while in others the case is reversed, the anterior end
of the abdomen being excavated to receive the posterior end of

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 169

the cephalothorax. The upper surface of the abdomen is coy-
ered with a rounded, hardened cap, with a glistening surface,
which has exactly the appearance of the wing-covers of beetles.

The quadrangle of the eyes is one-third wider than long,
is almost equally wide in front and behind, and occupies about
one-half of the cephalothorax. The anterior eyes are close to-
gether, the middle being from nearly twice to nearly three
times as large as the lateral. The position of the second row
is variable. ‘The third row is as wide as the cephalothorax at
that place. ;

The whole spider is both longitudinally and transversely
convex.

The relative length of the legs is 4132 or 23.

The shape and minute size of Coccorchestes separate it
from other genera.

The type of this genus is C. rufipes Thorell, Ragni Malesi
e Papuani, Vol. IIL, p. 672. The only species in our collec-
tion, however, is Coccorchestes (Rhanis), cupreus Simon, from
Brazil, Hist. Nat. d. Araignees, p. 309. In this species a line
touching the tops of the anterior eyes would be curved down-
ward—not upward as in Thorell’s species. M. Simon considers
Salt. coccinelloides Cambridge, a synonym of C. cupreus.

Thorell describes the type, rufipes, as having the quad-
rangle of the eyes a little wider in front than behind, but his
other species either agree with cupreus in having it a little
wider behind, or have it equally wide in front and behind.

COCCORCHESTES CUPREUS SIMON.
Plate XV., Figs. 10—10d.

$ and @. Total length, 2.2.

The cephalothorax and the upper part of the abdomen
have the integument hardened and covered with little punctate
spots. It is glistening and iridescent, the color being
purple on the cephalothorax and brown on the abdomen.
There are some white hairs on the face and around the large
middle eyes. The falces are very small. The first row of eyes

170 PECKHAM. [Vol. 2,

is curved downward ; the middle eyes of this row are a little
less than twice as large as the lateral, and the second row is
nearer the third than the first row.

The legs are weak, and of a very pale brown color. The
first legs are the stoutest, and, in some specimens, are much
darker colored than the others.

We have numerous individuals of both sexes and of yari-
ous ages.

M. Simon sends us this species, marked simply “ Brazil.”
We have it also in the Smith collection from Chapoda.

The beetle-like shell which characterizes this species is not
acquired until the spider is two-thirds grown.

CHIROTHECIA TACZ.
Plate XVI., Figs 1—10.

The cephalothorax is low and flat, and is about one-third
longer than wide. It is widest opposite the dorsal eyes. The
cephalic and thoracic parts are on the same plane. The cephalic
part occupies two-thirds of the cephalothorax. The thoracic
part is narrowed on the sides and above to a blunt point, and
does not fall until near the posterior border.

The quadrangle of the eyes is about as long as wide, and
is wider behind than in front. The anterior eyes are close
together in a curved row. The middle are twice as large as
the lateral. The second row is nearer the first than the third.
The third row is as wide as the cephalothorax at that place.
The eyes of this row are further from each other than from the
lateral borders.

This genus is characterized by the very long cephalic part,
and the low, flat cephalothorax. ‘The type is C. cheliferoides
Tacz, Aranéides du Pérou, Bulletin de la Soc. Imp. des Nat.
de Moscou, T. LIII., 1878, No. 4, p. 363. The only species that
we have are crassipes Tacz., ibid., p. 364, and clavimana Tacz.,
Aran. de la Guyane Francaise, p. 84, the former from Peru, the
latter from Brazil. They both have (as has also cheliferoides)
the first leg enormously enlarged, the tibia especially

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 171

being broad and heavy and furnished with heavy spines
and hairs. For a drawing of the epigynum of Chirothecia
clayimana, see Plate XVI., Fig. 2.

HARMOCHIRUS SIMON.

The cephalothorax is high, and is a little longer than wide.
Its widest point is at the dorsal eyes, and from there it contracts
strongly in front and behind. The sides are nearly vertical.
Behind, it slopes very steeply from just behind the dorsal eyes.

The quadrangle of the eyes is only one-fifth wider than
long, is much wider behind than in front, and occupies two-
thirds of the cephalothorax. The anterior eyes are in a slightly
curved row, and are close together; the middle are less than
twice as large as the lateral. The second row of eyes is a little
nearer the third than the first. The third row is as wide as
the cephalothorax at that place.

The first legs and the long cephalic part of this genus at
once recall Chirothecia. The latter genus, however, has a low,
flat cephalothorax, which is plainly longer than wide.

Harmochirus is, perhaps, most likely to be confused with
Zygoballus, but in this genus the quadrangle occupies but little
more than half of the cephalothorax. Zygoballus, moreover,
is found in North America, Central America, and the West
Indies, Chirothecia in South America, and Harmochirus in
Asia and Africa.

The type of this genus is Harmochirus malaccensis Simon,
Faune Arachnologique de l’Asie Méridionale, Bull. Soe. Zool.
de France, T. X., 1885, p. 5. The only species which we have
was sent tous by M. Simon, named Harmochirus albi-barbis,
but we believe that it is now published for the first time.

HARMOCHIRUS ALBI-BARBIS SP. NOY.
Plate XVI., Figs. 3—8d.
$. Length, 3. Length of cephalothorax, 1.7; width of
cephalothorax, 1.5.
Legs, 1423; those of the first pair much enlarged, a good
deal like those of Chirothecia, the tibia haying a
row of stiff bristles above and below.

172 PECKHAM. ol 2,

The falces are parallel, short and weak. The cephalothorax
is dull black, covered with little punctate spots. It is thinly
covered with short, white hairs. The abdomen is almost circu-
lar in outline, and is black and glabrous, with a few white hairs
at theanterior end. The clypeus is covered with white hairs,
which grow toward each other, their insertion being at each
side at the outer edge of the large middle eye, and their tips
meeting in the middle line. The legs are dark brown, the
metatarsi and tarsi being a little ighter than the other joints.

We have one male from Zanzibar, sent us by M. Simon.

ZYGOBALLUS PECKHAM.
Plate XVI., Figs. 4—4c.

The cephalothorax is high, and a little longer than wide.
It is widest at the dorsal eyes and contracts in front and behind.
The sides are not quite vertical.

The quadrangle of the eyes is one-fifth wider than long,
is plainly wider behind than in front, and occupies three-fifths
of the cephalothorax. The thoracic part falls steeply from the
dorsal eyes. The first row of eyesis very shghtly curved. The
middle eyes are sub-touching, and are nearly twice as large as
the lateral, which are a little separated from them. The second
row is plainly nearer the first than the third row. The third
row is as wide as the cephalothorax at that place.

Zygoballus is a very distinct genus, containing numerous
species. We have in our collection, bettini P., the type, and
sex-punctatus Hentz, from the United States, both described in
N. A. Attidee, p. 89; terrestris Emerton, New England Attide,
Trans. Conn. Acad., Vol. VIIL, Oct., 1891; rufipes P., New
Attidee from Eastern Guatemala, Proc. Nat. Hist. Soc. of Wis.,
Dec., 1885, p. 82, and a new species, suavis, from Jamaica. All
these species strongly resemble each other, and the males, so
far as we know them, have their falces obliquely directed, with
long fangs, and a strong vertical apophysis coming down from
the proximal end of each falx, on the inner side.

For a drawing of the dorsal view of the female of Zygo-
ballus terrestris, see Plate XVI., Fig. 5.

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 73

ZYGOBALLUS SUAVIS SP. NOY.
Plate XVL., Figs. 6—6d.

$. Length varying from 3.2 to 4.5. Length of cephalo-
thorax of the larger variety, 2; width of cephalo-
thorax, 1.7.

Legs, 1423 ; first pair stoutest and much the longest.

9. Length, 4.6. Length of cephalothorax, 2; width of
cephalothorax, 1.7.

Legs, 4123.

The anterior end of the abdomen overlaps and lies close
upon the posterior end of the cephalothorax. The falces of the
female are vertical, rather long, and moderately stout. In the
male they are obliquely directed forward and are long and
strong, with very long, curved fangs. At the proximal end is
the pointed, vertical apophysis, common to the males of this
genus, and on the under side of each falx is a curved apophysis,
or horn, visible only from below. ‘The palpi of the male are
slender and greatly elongated.

In the male the cephalothorax, falces, palpi and first legs
are bronze, with a thin covering of white hairs. There are two
black spots on the eye region and the eyes are surrounded by
black rings. The abdomen is also bronze, with a line of chey-
rons in brown down the middle of the dorsum. The lower
sides are black, and three black bands come up on each side
on to the dorsum. There is a snow-white band of hairs
around the anterior end, and a pair of white spots near the
posterior end. The second, third and fourth pairs of legs are
brown.

The female has the cephalothorax bronze with the black
spots on the cephalic part, and around the eyes, as in the male ;
but the covering hairs are yellow rather than white. The legs,
palpi and falces are brown. The integument of the ab-
domen is pale brown with a darker herring-bone stripe down
the middle, some dark bands coming up over the sides, and
four distinct, black spots on the dorsum.

We have numerous individuals from Mandeville, Mon-
eague, and Kingston, Jamaica.

174 PECKHAM. [Vol. 2,
NEMTHA SIMON.
Plate XVL, Fig. 7—7).

Nezetha is the name substituted by M. Simon, in 1885, for
Nezera, which was preoccupied.

The cephalothorax is high and is a little longer than wide,
the widest point being a little behind the dorsal eyes. The
cephalic part is inclined. The thoracic part rounds off, and
falls quite steeply a little way behind the dorsal eyes. The
sides are not quite vertical.

The quadrangle of the eyes is one-third wider than long,
is but little wider behind than in front, and occupies one-half
of the cephalothorax. The first row of eyes is straight. The
eyesare all close together, and the middle are twice as large as
the lateral. The eyes of the second row are yery minute, and
are placed halfway between the dorsal and lateral eyes. The
third row is not quite as wideas the cephalothorax at that place.

Of this genus we have only the type species, Nezetha
(Neera) membrosa Simon, Arachnides de France, Vol. IIL,
p. 200.

NEON SIMON.
Plate XVI., Figs. 8—8d and 9—9a.

The cephalothorax is rather high. It is about one-fourth
longer than wide. It is narrowest in front, rounding out a lit-
tle behind the dorsal eyes. ‘The sides slant inward in the ceph-
alic part, and outward, a little, in the thoracic. The cephalic
part is inclined forward; the thoracic is nearly level for a
a very short distance behind the dorsal eyes and then falls not
very abruptly.

The quadrangle of the eyes is one-fifth wider than
long, is equally wide in front and behind or a little wider be-
hind, and occupies a little more than one-half of the cephalo-
thorax. The anterior eyes are close together, and form a
straight row. The middle are less than twice as large as the
lateral. The second row is about half-way between the first and

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 175

third rows. ‘The dorsal eyes are usually larger than the lateral
and form a row which is as wide as the cephalothorax at that
place.

The relative length of the legs is variable.

We have of this genus, the type species, reticulatus Black-
well, from France and Germany (Simon’s Arachnides de
France, Vol. III., p. 210), nellii P., from Pennyslvania, U.S.,
N. A. Attidee, p. 88, and pompatus P., Attidee of St. Vincent,
Proc. Zool. Soc. of London, Noy. 21, 1893, p. 703. M. Simon
describes three species besides reticulatus, in Arachnides de
France.

SIDUSA GEN. Novy.

The cephalothorax is very high, and is plainly longer than
wide. The widest point is at the first row of eyes. It contracts
a little in the cephalic part and widens out again in the
thoracic. The sides are nearly vertical in front and round out
a little behind the dorsal eyes. The cephalic part is inclined
forward; the thoracic rounds off gently for a short distance
behind the dorsal eyes and then falls a little more abruptly.

The quadrangle of the eyes is plainly wider in front than
behind, is one-fourth wider than long, and occupies three-fifths
of the cephalothorax. The anterior eyes are very large and
bulge forward prominently, the lateral being two-thirds as large
as the middle eyes. This row is slightly curved. The second
row is a little nearer the third than the first row. The dorsal
eyes are as large as the lateral, and are also very prominent.
They form a row as wide as the cephalothorax at that place.

The relative length of the legs is 34 12.

The interesting new species which forms the type of this
genus was very kindly sent us, with only the generic name
prefixed, by M. Simon.

SIDUSA GRATIOSA SP. NOY.
Plate XVI., Figs. 10—10e.

$. Total length, 4.2. Length of cephalothorax, 2;
width of cephalothorax, 1.5.

176 PECK HAM. [Vol. 2,

The first legs are lacking; the others are 342.

2. Total length, 4.4. Length of cephalothorax, 2.2;
width of cephalothorax, 1.8.

Legs, 3412; first and second pairs a little enlarged.

The falces are vertical, long and moderately stout. The
labium and maxille are rounded. The sternum is oval.

The cephalothorax is very dark brown, with black spots
around the eyes. There are a few white hairs left on the sides,
which may have entirely covered them. The upper surface
seems to have been covered with very brilliant pink and green
iridescent scales. In the females the ground-color of the abdo-
men is black, with a covering of the same iridescent scales.
Two curved white bands nearly meet inthe middle line, around
the anterior end, and further back, on each side, two white
bands come up from the lower sides. There are some indis-
tinct, pale chevrons on the posterior half. The abdomen, in the
male, is more slender than m the female. The coloring is
similar, but the white appears only in two spots, low down on
each side, and in a band around the anterior end.

The falces and the coxa, trochanter, femur and patella of
the first leg, are dark brown; otherwise the legs are light brown
except for a smoky darkening on the femoral joints.

We have one male and one female from the Amazon, sent
us by M. Simon.

SASSACUS GEN. Nov.

The cephalothorax is rather high, and is plainly longer
than wide. It grows broader from the first row of eyes to the
widest part, which is considerably behind the dorsal eyes, at
the point where the thoracic part begins to fall. The sides are
not far from vertical, rounding outward more in the thoracic
than in the cephalic part. The cephalic and two-thirds of the
thoracic part are flat and on a level, or nearly so.

The quadrangle of the eyes is much wider behind, and is
about as long as it is wide in front. It occupies about one-half
of the cephalothorax. The anterior eyes are close together in

No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 177

a straight row. The middle are twice as large as the lateral.
The second row is plainly nearer the first. The third row is a
little narrower than the cephalothorax at that place.

This genus, by its coloring and general appearance, re-
calls Icius and the allied genera. The position of the eyes,
however, seems to bring it nearer to the Homalattus group.
We have only the one species described below.

SASSACUS PAPENHOEI SP. NOV.
faleite sp XG Aleatinic: seal nie —Slalie!

é. Length, 4.7. Length of cephalothorax, 2; width of
cephalothorax, 1.7.

Legs, 1423; fourth and second not very unequal. First
plainly longer than the fourth, and stouter than
the others, but not so much stouter as in the fe-
male.

@. Length, 5.5. Length of cephalothorax, 2; width of
cephalothorax, 1.7.

Legs, 1432; first pair much the stoutest.

There is a curious difference between the two sexes in the
shape of the cephalothorax. While in the male the anterior
thoracic part is flat, and is on a level with the cephalic, and the
posterior slope abrupt, in the female, the thoracic part rounds
off gently from the dorsal eyes to the posterior border. The
falces are vertical and moderately long and stout. The sternum
is small and oval. The maxille are thick and rounded, and
the labium is small.

The coloring is very brilliant. The upper surface of the
cephalothorax and the upper and under surfaces of the ab-
domen are covered with iridescent scales, the prevailing colors
of which are pink and gold. The upper sides of the cephalo-
thorax are covered with iridescent scales, which are white with
greenish reflections. The clypeus and lower sides have snow-
white bands. The abdomen has four punctate spots on the
dorsum and is encircled by a wide, snowy white band. The
legs are brown, the first pair being the darkest, except the

178 PECKHAM. [Vol. 2,

metatarsi and tarsi which are pale yellow. At the union of
these two joints is a black ring, and the tarsi are tipped with
black. The palpi are pale brown in the female and dark
brown in the male, and are covered with white hairs.

We have a number of males and females sent us from
Wallace, Kansas, by Mr. Papenhoe.

ERIS C. KOCH.
Plate XVI, Figs. 12—12e.

The cephalothorax is high, and is plainly longer than wide.
Its greatest width is at the dorsal eyes. The sides are widely
rounded out, both in the cephalic and thoracic part.

The quadrangle of the eyes is one-third wider than long and
is very much wider behind than in front. It occupies from
one-half to three-fifths of the cephalothorax. The first row of
eyes is straight or alittle curved. In the type species the eyes of
this row are all well separated, the lateral not more widely from
the middle than the middle from each other, and the middle
are less than twice as large as the lateral; but in maculata the
middle eyes are sub-touching, and the lateral are a little
separated fromthem and only halfas large. The second row is
half-way between the first and third, or is nearer the first. The
dorsal eyes are on the sides of the upper part of the cephalo-
thorax, but as the sides round out a little they form a row not
quite so wide as the cephalothorax at that place.

We have included the genus Bianor Keys. in Eris. We
have in our collection the type, Eris albo-bimaculata Lucus
(for description see Simon’s Arachnides de France, Vol. IIL,
p- 198) and Eris (Bianor) maculata Keys., from Sidney, de-
scribed as Scythropa maculata in Arachniden Australiens,
p. 1447.

EXPLANATION OF PLATES.
PLATE XV.

Fig. 1, Homalattus maccuni, dorsal view of female, x8;
la, face and falces; 10, side view of cephalothorax; 1c, epigy-
num.

Fig. 2, Homalattus rusticus, dorsal view of male, x8; 2a,
face and falces ; 26, side of cephalothorax; 2¢ and 2d, palpus.

Fig. 8, Rhene cyanea, dorsal view of female, x 6; 3a, face
and falces ; 3b, side view of cephalothorax.

Fig. 4, Rhene callida, dorsal view of female, x 8; 4a,
epigynum.

Fig. 5, Rhene vaga, dorsal view of female, x8; 5a, epigy-
num; 5) and 5c, palpus of male.

Fig. 6, Anamosa callosa, dorsal yiew of female, x8; 6a, face
and falces, 60, side view of cephalothorax ; 6c, epigynum.

Fig. 7, Anamosa inconcinna, dorsal view of female, x 8; 7a
epigynum.

Fig. 5, Ballus depressus, dorsal view of female, x8; 8a,
face and falces; 8, side view of cephalothorax.

Fig. 9, Beata magna, dorsal view of female, 8x; 9a, face
and falces; 9b, side view of cephalothorax; 9c, epigynum.

Tig. 10, Coccorchestes cupreus, dorsal view of female, x 12;
10a, face and falces; 10), side view of spider, showing cara-
pace-lke plate on abdomen ; 10c, epigynum ; 10d, male palpus.

PLATE AY,

Ws

. Ay
Any

I}

») y)

NY

yf hy)
i) ds

——

New Haven, Ct

~ Crisand, lith.,2

J.H.Emerton, from nature.

PLATE XVI.

Fig. 1, Chirothecia crassipes, dorsal view of male, x 8; 1a,
face and falces; 1b, side view of cephalothorax.

Fig. 2, Chirothecia clayimana, epygynum.

Fig. 3, Harmochirus albi-barbis, dorsal yiew of male, x 8 ;
3a, face and falces; 3b, side view of cephalothorax.

Fig. 4, Zygoballus bettini, dorsal view of female, x 6; da,
face and falces ; 46, side view of cephalothorax ; 4c, dorsal yiew
of female distended with eggs.

Fig. 5, Zygoballus terrestris, dorsal view of female, x 8.

Fig. 6, Zygoballus suavis, dorsal view of female, x 6; 6a,
dorsal view of male, x 6; 6b, falces of male from beneath; 6¢
and 6d, male palpus.

Fig. 7, Neztha membrosa, dorsal view of female ; 7a, face
and falces; 7b, side view of cephalothorax.

Fig. 8, Neon reticulatus, dorsal view of female, x 8; 8a,
face and falces; 8b, side view of cephalothorax.

Fig. 9, Neon nellu, dorsal view of female; 9a, side view of
cephalothorax.

Fig. 10, Sidusa gratiosa, dorsal view of female, x 8; 10a,
face and falces ; 10), side yiew of cephalothorax ; 10e, epigynum;
10d and 10e, male palpus.

Fig. 11, Sassacus papenhoei, dorsal view of female, x 8;
11a, face and falces; 110, side view of cephalothorax of female ;
11e, side view of cephalothorax of male; 11d, male palpus; 11e,
epigynum.

Fig. 12, Eris albo-bimaculata, dorsal view of male, x 8; 12a,
dorsal view of female; 126, face and falces of female; 12c, side
view of cephalothorax of female; 12d, face and falces of male ;
12e, side view of cephalothorax of male.

OO Ee

PLATE XVI.

Kd
wn

S

(yy dey, OOK)

LTS:
cael

f)'

i
| |
Vas

lt
i? |
i. ey

12:

JH.Emerton, from

Crisand, lith.,New Haven, Ct

\
if
a RB
: °

wing

586

ANAMOSA
callosa P
Tao) Pe acscoscocecscaoocss

TBYNTHI OFS ocosospucoosadudeadogossonde soco00s6
zenescens HE. S..
gene CbUlK) 1B), Slecosccso0cq00005
depressus W1k

sequipes E. S.... 2 Wey
tantalus E. &...... seondacne. 1ASY/
SVOUIN EA IE cpoonnacosnqGos5n55aR00s5 167
1BISVATWN codgodeb68000080 167
TNEYEITE), 1 osocospaseeoooqn0neccsn0000 168
IBAINORSeececersesesecsctachoussuescescetertaes 178
(CyeaVOyME NEI sccacoonoasonuaesesoneeoGoD oc 170

cheliferoides Tacz...
Clawamman ay aC Zeesceseesetecteettas
crassipeS TacZ............060e 170

CoccoRCHESTES
coccinelloides Camb...........
cupreus HE. S............... thee 169
TBD BOVIS IE accocaces: coaGode | sa05e5 169
TBH paeacosoadoaco edqceesdonsoddnobeosdennose 178

HIARMOCHIRUS........--- =
EMMONS] REONS) 12) cscoaqdescoocosencos

malaccensis E. S.............6 171

TOKO DUN) 2 conosconcononoecancoanes 160
margarops Th................... 160
pustulatus W..................... 159
rusticus P.... 161
IND RARE oe corcadvecaneee qeeteeetincceanse 174
TS DIO eae sonnacoceoosnaneradnbacocseanD acc 174
MAN OVCO\SEY Jig bSbonoopeaccteqoc00d 174
INIEON See choco sresinlesecstoncceses seoebieeeces 174
nellii P...... 175
pompatus P.............-c0eeeee 175
THEMOMUEN DIS) TBI Keeeoocecnoccootoac 175
SINGING] OfSBidcoepcoosqudscoaacaaooques ond6000 176
papenhoei P...
ScyTHROPA
SED USAtecsceecneceaeecclesteterceermesciontcs
(ERENNO RE) IE Sooseodomscanseoooo5coon 175
IRISTDINI DLs cocetocoaen \ saneepeeeedeceseneseensee 161
GEUINGCIE 1P ocodecsosseadsode gosode3. 162
Gy/ANOED, 1B losoncpoconncosobnoenonon6e6 162
TEED, Ch IX crcocosocsbocobande 159
TWEE, [Pa ecooncecboonoscononsoa0b080s
VASAG(ONSVNIVTUDISheosododdnodoodesboQacss4d006000
bettini P
rufipes P 73
sex-punctatus H...... .......- W2
FSD ATs). sGopcosonsoacoroaoDonNNGOs 178
terrestris Jim.................... 172.

fatee