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BULLETIN NO, 31.

¥
TECHNICAL SERIES NO. I.

4 PRELIMINARY LIST

OF THE :

‘ | HEMIPTERA oF COLORADO.

t

BY C. P. GILLETTE AND CARL F. BAKER

+ of

oy

e

af v

’ =

i
ALSTON ELLIS, Pre siden.

FORT COLLIN 8, COLORADO:
MAILED JUNE 7, 1896.

ravurararrarar a aaa aaa tata MEME ELL al Ln maT Tat iml ctl i) eas le al tak al ah al Lael tc toes Lk Ped lah ei Sek Pgh cae aha ae les Tle tk eh dk a ada Lele ed lk eh aha nll

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< ST THE STATE AGRICULTURAL COLLEGE.

AGRICULTURAL EXPERIMENT. STATION

BULLETIN NO. 31,

TECHNICAL SERIES NO. I.

A PRELIMINARY LIST

OF THE

AEAIPTEKA SF COLORADOY

BY C. P. GILLETTE AND CARL F. BAKER

approved by the Station Council,
ALSTON ELLIS, President.

je

AMERICAN STANDARD:
FORT COLLINS, a

MAY, 1895.
en f Pe nGr

THE AGRICULTURAL EXPERIMENT STATION.

FORT COLLINS, COE@KADG

THE STATE BOARD OF AGRICULTURE. Hxpiree:
BONS A. . EMIGH, PRESIDENT ......... <.Geeeeeees Fort Collins, = ....- 1897
HON TORN RYAN 220.205 etesst . see eee Fort Collins,....... 1897
HON Gh Deu BOIS: ojrecc saa teete oe. oc ae Fort Collins. ss. 1899
HON, JOSERH: S. MCCLELLAND <......eeeeecee. Fort Collins... ..- 1899
HON DAMES: L.'CHATERIRUD:.......s.... sees Gy PSUS. joe. eee 1901
HON. A. LINDSLEY “KELLOGG: :...:.<... epee Rocky Word) :22¢. 25 1901
HON. PAT Ves ADAMS. fee heh back >... eee Pueblo:.ciesacceeee 1903
NERS IO HIN Li, ROUT coc aswee s <2.0 5.0 3 DENVER). s somisto acer 1903
GOVERNOR ALBERT W. McINTIRE, } _. .
PRESIDENT ALSTON ELLIS........ j EX-OFFICIO.

EXECUTIVE COMMITTEE IN CHARGE.

HON. J. S. MCCLELLAND, HON. JOHN J. RYAN,
HON. A. L. KELLOGG,
THE PRESIDENT OF THE BOARD AND THE PRESIDENT OF THE COLLEGE.

STATION COUNCIL.

ASLO N HELIS. A. M., PH. DX EEODS 2... eee PRESIDENT AND DIRECTOR
EELS W.COOKE, B.S., A. MAES. 25...) seen AGRICULTURIST
Pise CRANDALL; M.S.,;..24-.6..feneecee HORTICULTURIST AND BOTANIST
aL LAM P. HEADDEN, A. M., Pa. D:,....s:4:5eeeeeee eee CHEMIST
L. G. CARPENTER, M. S.,.... METEOROLOGIST AND IRRIGATION ENGINEER
Pb GG HTTH, M.'S.,.... 22.20. de oes ee ee ENTOMOLOGIST
DANIEL W. WORKING, B.:S.,.:: 2... c:cseee ee eee SECRETARY
CATH ROP M. TAYLOR, B.S..5....-2 eee STENOGRAPHER
ASSISTANTS.
HBANM KL OWATROUS, 2)... fidedost da ee A GRICULTURIST
pee ELU WEEN GMON,. «sis s20ck 0c cious cas eee HORTICULTURIST
ORES (J. BY AN. 05 des sie «oie dase w dea ne ee CHEMIST
Weigh” BAKER, B: S.i655 2 sas Cdevacsuecss eee eee ENTOMOLOGIST

Rane eI MBE, BYSst)..2)c METEOROLOGIST AND IRRIGATION ENGINEER

INTRODUCTION.

Probably there is no state in the Union offering a richer
field for the student of natural history than Colorado,
whether it be in the line of mineralogy, paleontology, zo-
ology, or botany. Its broad stretch of arid plains crossed by
streams of living water, its high mountain ranges, broad
plateaus, innumerable gulches and deep canons, all combine
to give it a most exceptional topography with a consequent
diversified fauna and flora.

The macro-lepidoptera of the state are very largely known,
as a result of the extended collecting of Reakirt, Mead, Bruce,
Snow and others. Lists of Coleoptera have been published
from the collections of LeConte, Schwarz, Wickham, Snow
and others. Lists of the Hymenoptera have been published
by Cresson and Ashmead. But never before in any one
publication has the attempt been made to list the Hemiptera
of the state. Indeed, heretofore there have been no large col-
lections of the Colorado species of this order to draw upon.
During the past four years we have collected nearly all those
previously known from the state and a very large number
of additional forms. It has been our plan to make more than
a simple record of the species known to occur in the state.
With each species is given the bibliography of all published
records of its occurence in the state so far as known to us,
also the name of the collector, locality, date of collection,
and, wherever we have been able to ascertain it, the food-
plant. Except in the case of Uhler, the authority for the
determination of our specimens is given in the same line
with the name. To avoid the repetition of the titles of
papers, a numbered list of the papers referred to is given, the

author’s name and the number of the paper only being given
in the body of the list.

The determinations of specimens have been made by
specialists in the different groups, the authors doing a large
proportion of the systematic work on the Homoptera. It is
hoped that this work will be found reasonably free from
errors. In the preparation of the list we have been greatly
aided by Mr. E. P. Van Duzee, who has made a large number
of determinations for us, has made many helpful sugges-
tions, and loaned us papers from his private library. We are
under very special obligations to Dr. P. R. Uhler of Baltimore
who has worked over our entire collection of Heteroptera
and described the forty-seven new species and five new
genera here published. Professor T. D. A. Cockerell of New
Mexico, has determined nearly all our Coccidae and sent us
many records of captures by himself, as well as valuable
notes on species we had sent him for examination. The
Membracidae have mostly been determined by Dr. Goding
of Rutland, Illinois, and the Psyllidae by Dr. Riley. Pro-
fessor Herbert Osborn of Iowa, also determined several
Species in the early part of the work. Mr. J. H. Cowen,
a post graduate student, has done the work on _ the
Aphididae, a large proportion of which he collected himself.
Prof. W. A. Snow, of Kansas, has sent us a list of the Colorado
Hemiptera in the Kansas University collection, which has
added several species and many records to our list. Dr. Riley
sent us a similar list from the United States National
Museum.

It will be noticed that a great many species in the list, and °
especially of those that are new, are from mountainous
localities where but little or no collecting had been previously
done. All portions of the state still promise rich harvests
to the collector, and especially those parts which have never
yet been visited by ‘“bug-net” and cyanide bottle. The-list
of new species here presented, although large, must be
small compared with the forms yet unknown.

Work of a nature similar to this is being done in all
orders. In view of this fact we most earnestly solicit
correspondence from any quarter relative to the Colorado

insect fauna. Just at this time we especially desire notice of
published records not given ix this list, and data on
correctly determined specimens in collections which have
not been accessible to us. As the authors have undertaken
a special study of the North American Jassidae, they would
be pleased to examine specimens in that group from any por-
tion of the country, and will give determinations for the pri-
vilege of retaining desiderata.

WORKS CITED.

CARPENTER, W. L.
1—1873—Report on Alpine Insect Fauna of Colorado.
U.S. Geol. and Geog. Surv. of Colo., p. 539.
CocKERELL, T. D. A.
9—1890—Notes from Colorado. Ent. News. Vol. L., p. 75.

10—1893—Entom. of Midalpine Zone of Custer Co., Colo.
Trans. Amer. Ent. Soc. XX., p. 305.

GinmetTTE, ©, P.
6—1892—Observ. on Inj. Insects. Bull. 19, Colo. Ag.

Exp. Sta.
¢—1891—Two Insect Pests. Bull. 15, Colo. Agr. Exp.
Sta.
Gopine, F. W.

1—]892—Studies in N. A. Membracidae I. Ent. News,
Vol, IIL, pales:

2—1892—Studies in N. A. Membracidae II. Ent. News,
Vol THs p200.

3—1893—Bibl. and Syn. Cat. Membracidae N. A.

Monranpon, A. L.
1—1593—Notes on Amer. Hemiptera-Heteroptera.
Proc. Nat. Mus., Vol. XVI, p. 46.

Osporn, H.
1—Notes on Distrib. of Hemiptera. Trans. lowa Acad.
Scu, Voliespsl av:
Packarp, A. S.
2—1875—Rep. on Rocky Mt. Locust and other insects
now injuring or likely to injure field and garden
crops in Western States and Terr. U.5S. Geol.
and Geog. Surv. of Colo. and Adjac. Terr.. pp. 5-90.
Putnam, J. D.
4—1875—Rem. on Habits of Several Western Cicadeae.
Davenp. Acad. Sci. Vol. IIL, p. 67.
Ritzy & Monet.
1—1879-— Notes on Aphididae of U. 8. with dese. of n.
Spp. occurring west of Miss. Bull No. Iof U.S.
Geol. and Geog. Surv. of Terr. Vol. V., p. 1.
aime, P. RK.
1—1871—Notices of the Hemip. of West. Terr. of U.S.
U.S. Geol. Surv. of Mont. and Adjac. Terr., p. 392.

2—1875—Rep. on coll. of Hemip. made in portions of
Nev., Utah, Cala., Colo. N. Mex., and Ariz.
Wheeler’s Explor. west of 100th Merid., Vol. V.,
Zool., p. 827.

3—1887—Observ. on N. A. Capsidae with dese. of n.
spp: Ent. Amer, Vol. Tle paor

4—1858—Prelim. Surv. of Cicadeae of U.S. Ent. Amer.,
Mola peel.

5—1877—Rep. on Ins. coll. during 1875 incl. Mon. fam.
Cydnidae and Saldae, and Hemip. coll. by A. S.
Packard, Jr. Bull. U.S. Geol. and Geog. Surv.,
Vol. III., Nos. 2 and 4.

6—1875—List of Hemip. of Reg. w. of Miss. River inel.
* those coll. during Hayden Explor. of 1873.
Hayden’s Surv. Rep., p. 267.

7—1877—Rep. on Hemip. coll. during 1874 and 1875.
Appendix NN. in Rep. Chief Engineers, Part II.,
p. 1322.

8—1894—Observ. on Heter. Hemip. of Lower Cala.
Proc. Cala, Acad. Sci. Ser. 2, Vol. IV., p. 223.

I—1895—Summary of a coll. of Hemip. secured by Mr.
KE. A. Schwarz in Utah. Proc. Ent. Soc. Wash.,
Vol. IL., p. 366.

Van Duzez, E. P.

1—1889—Review ot N. A.sp.of Pediopsis. Ent. Amer.,
Vole We -p. 165:

2—1892—New N. A. Homop. V. Uanad. Ent., Vol.
XXVL., p. 266.

3—1894—Desc. of New N. A. Homop. Bull. Buff. Soe.
Nat. Sci., Vol. V., No. 4, p. 205.

4—1894—Cat. desc. Jassoidea N. A. Trans. Amer. Ent.
poc., Vol. X XJetp, 245.

MED

ALTITUDES OF LOCALITIES MENTIONED
IN THIS PARER.

The altitudes given represent only average heights.
Timber line is at about 12,000 feet in Southern and about
10,500 feet in Northern Colorado.

PANS WTI Me erry ray occverstenece eistetescrsters 8,000
IB CLUMOU GPE ASSMermrimicmeniccrechs 11,300
Big Narrows of Poudre....... 6,000
IBXOUWULC ETHOS apetereci Gorton 5,300
CWameroumeassmeeeeasceeeree: 10,000
(CAMONMCOIGY ate cose ces cater 5,200
Wheyenne Canon. ..26.06-2..0¢ 6,200
ColoradoySprings ya scec sees 6,000
IDXSIORY CT oc 6 cen ics ROCCE Oe 5,200
JBGS IEA Aes oe omen eee 8,600
ORGRCOMINS aciccs cece e es... 5,000
Hour-mile wa css... cece 7,000
Ganlandieary Woe oe tasee sae: 7,900
ROTO CLO Wi oe os coisa asa tore efetove- cia iaie 8,700
Glenwood Springs............. 7,800
Galilei. go Rah Asane cane 5,700
(CiOn® IPAS baeeaed ale ncousoaedas 10,000
GHAMC UN CHON Sse cc.5'es b sitio + 6,000
Green Mountain Falls......... 8,700
orsetootmiGulehivss. ss... ..% 5,600
EO WWie7s) GuullGlis. weiss eters eco eeles 5,500

IGEVNS SHORING sa sscoccoucsccee 7,400
Tiaiiareeerver ince seta carsceatcce 4,000
La Victorino coe ene 7,000
Loeadwillem yan Bae oscacceceten 10,200
I Dimi IN INORS a5 boo hone aEodoEOdS 6,000
Manitouieeparademsin oe crouseee 6,300
Montroseeemseheccck nieces 6,200
N OFthi Barker ciara, sfoct- oo ras 8,500
QOUurays. eet ce eee aaa 8,000
Pu6plOwe ere aa coerce 4,600
Rab bite hansmelzaSSmaereeeeee 10,000
Risti@anonteca newer cere 5,500
RUStIiGG eR eee wank hones 7,000
Silverton reser ec eee oe ne OU
South Banke ae seer crcce acre ae 7,200
Spring CanSie nee eee 5,500
Steamboat Springs............ 6,500
Trinidad@yyeeesshece see 5,900
Veta. Passa pe. cae. se enema 9,500
'W est: Cini iene a ciis cictnn ier: 7,800

A PRELIMINARY LIST OF THE HEMIPTERA
OF COLORADO.

WITH DESCRIPTIONS OF NEW SPECIES, BY DR. P. R. UHLER,
J. H. COWEN, AND THE AUTHORS.

Homaemus grammicus W olff.

Colorado Springs (Tucker.)
Homaemus aeneifrons Say.

Colo. (Uhler, 1 and 6). Swept from rank weeds near water courses. West
of Denver occurred in swampy spots near South Platte River, and on the high
watered table lands near foot-hills. Also beaten from bushes near Beaver
Brook Gulch and in Clear Creek Canon (Uhler, 5).

Estes Park, Bailey (Snow). Manitou Park (Snow and
Tucker).

Homaemus bijugis Uhl.

Colo. (Uhler, 1 and 6). Foot-hills, September (Carpenter—see Uhler, 6.)
Near Denver (B. H. Smith—see Uhler, 6). Not uncommon in Denver, par-
ticularly on rank growing plants in damp situations (Uhler, 5). Willow Creek,
Cusack Ranch, in midalpine of Custer County, August 21st, on timothy (Cock-
erell, 9 and 10),

Fort Collins, September 21st to October 15th; Horsetooth
Mountain,* July 4th; Steamboat Springs, July 26th; Mont-
rose, June 24th (Gillette), Fort Collins and adjoining foot-
hills, May 13th to October 7th, on alfalfa, wheat, and various
grasses (Baker).

Phimoderma torpida Walk.

Colo. (B. H. Smith—see Uhler, 6).
Furygaster alternatus Say.

Hills of Colo., September (Carpenter—see Uhler, 6). Common in Colorado

*A mountain about ten miles south-west of Fort Collins. Collecting was done from
5,500 to 6,000 feet.

10 PRELIMINARY LIST

in September in the region of the foot-hills (Uhler, 5). Custer County, midal-
pine, and Summit County (Cockerell, 10).

Fort Collins, July 4th; North Park, July 20th; Steamboat
Springs, July 26th (Gillette). Fort Collins, July 29th, on
wheat; Steamboat Springs, July 14th (Baker).

Corimelaena albipennis Say.

Of this species Dr. Uhler says: ‘Prof. Gillette has most kindly sent to me the only
specimen of this insect of which there is any record of capture since the timeof Mr. Say. It
is aspecies of prominent interestin many respects. In the first place, it isinan undeveloped
stage of coloring, showing that oxydation of the cuter integuments had not been com-
pleted when the insect was captured. It is also a female of unusually large size, in this
section of the genus, and it is not in the first stage of exclusion from the skin of the
nymph. The body is a little more bloated and consequently more convex above than in
the fully dried insect. The contour is fringed all around with slender setae, as in C.
ciliata Uhler. Its size is much less than that given by Mr. Say, but it agrees with his
deser'ption in nearly every respect. The hemelytra are not ‘wh‘te with a small rufous
spot,’ but white with a spot and tinge of black near the spex, such as occurs in the dryiug
stage of C. lateralis Fab., a few hours after it has left the skin of the nympha. The
‘small rufous spot’ of Mr. Say suggests a more recently excluded condition of the
species, in which the color beginning as white had oxydized to rufo-piceous on its way to
the final piceous or black color of the fully matured insect. C. unicolor Pal. Beauv. be-
comes almost uniform castaneous, or rufo-castaneous, as it changes from the milky white
of exclusion to the final black.”

This specimen was first determined by Osborn, who
recorded it as the first specimen found since Say’s description
(see Osborn, 1). Fort Collins, August 11th, on Glycyrrhiza
lepidota (Baker).

Corimelaena anthracina Uhl.

Steamboat Springs, July 13th (Baker). Estes Park, July
12th (Gillette).
Corimelaena atra A. & 8.

Colo, (Gillette—see Osborn, 1).

Rist Canon, April 16th (Gillette). Veta Pass, June 27th
(EH. A. Schwarz).

Corimelaena ciliata Uhler.

Foot-hills tive miles west of Fort Collins, hibernating
under stones, March 22d to April 12th (Gillette and Baker).

Corimelaena coerulescens Stal.
Colo. (Ridings, see Uhler, 6).
Corimelaena extensa Uhl.
Horsetooth Gulch,* May 18th (Gillette).
Corimelaena nitiduloides Wolf.

Above timber line in mountains. (Carpenter, see Uhler, 6). A few speci-

*A gulch about nine miles south-west of Fort Collins.

HEMIPTERA OF COLORADO. Le

mens taken concealed among roots of Yucea and other plants growing on
plains near foot-hills, during August, near Colorado Springs (Uhler, 5) Custer
County, midalpine (Cockerell, 10).

Corimelaena lateralis Fab.

Fort Collins, June 4th; foot-hills tive miles west of Fort
Collins, May 18th to June 14th; Dolores, June 15th: Mont-
rose, June 24th (Gillette). Steamboat Springs, July 26th
(Gillette and Baker).

Corimelaena renormata Ubhler nu. sp.

“Form of C. quadrisignata Stal. Black, polished. ciliate all around but with longer
and less blunt corium and no spots on the connexivum. Upper surface obsoletely ras-
trate-punctate,with the punctures scarcely visible upon the disk of pronotum and scutel-
lum. Head wide, convex near base, roughly, unevenly, rather coarsely, punctate except-
ing on the base, the anterior margin bluntly obliquely rounded, with the edge reflexed,
and the tip notched at end of tylus, the margin inferiorly has a series of coarse setigerous
punctures; rostrum rufu-piceous, reaching to middle coxae: antennae long, fulvo-
testaceous. Pronotum transverse, very moderately convex, with the lateral margins
little oblique and very slightly curved next the anterior angle, the surface crossed tefore
the middle by a grooved line, which is very distinct each side and is there surrounded by
an ®rea of very course punctures, the ciliae are set beneath the decurved edge in very
coarse sunken punctures. Scutellum bluntly rounded, feebly curved, shorter than the
abdomen, with a broad oblique, punctate impression each side above the middle of the
corium. The corium about three-fourths as long as the scutel!um, with the apical portion
of medium width, tapering, and obliquely rounded at tip, with about four lines of coarse
punctures, base of both corium and clavus, nearly covered by au ivory white, remotely
punctate, spot. Venter highly polished, with transverse remote series of small punctures
on most of the segments. the apical segment impunctate.

Length to tip of venter nearly 4 mm. Width of pronotum 2% mm. Only one speci-
men, a female, has come to my notice. Tt will most likely prove to be the fully colored
stage of C. albipennis Say.”’

Rist Canon*, April [6th (Gillette).

Homaloporus congruus Uhl.

Denver (B. H. Smith—see Uhler, 5). Near foot-hills west of Denver,
August (Uhler, 5).

Fort Collins, March 24th to April 24th (Baker). Foot-hills
tive miles west of Fort Collins, April 21st; Trinidad, May 14th
(Gillette).

Cydnus obliquus Uhl.

West of Denver (Uhler, 4).
Ammnestts spinifrons Say.

Colo. (Gillette—see Osborn, 1).

Trinidad, May 14th (Gillette).
Amnestus subferrugineus West.

Foot-hills tive miles west of -Fort Collins, Mareh 15th to

*A canon eight miles north-west of Fort Collins.

ly PRELIMINARY LIST

April 21st, under stones (Baker).

Perillus confluens H. Sch.

Custer County, midalpine (Cockerell, 10).
Perillus spendidus Uhl.

Colo. (Gillette—see Osborn, 1).

Dolores, June 18th (Gillette).

Perillus exaptus Say.

Colo. (Uhler, 1 and 6). Ula, Custer County, midalpine, November 12th
(Cockerell, 10).

Fort Collins, August 4th (Baker). Foot-hills five miles
west of Fort Collins, March 15th; under stones (Gillette).
Garland, June 29th (E. A. Schwarz).

Perillus claudus Say.
Golo. (Uhler, 1). Colo. (Riley—see Uhler, 6). Near Denver (B. H. Smith—
see Uhler,3). Near ColoradoSprings(Uhler, 3). Colo. (Gillette—see Osborn, 1).
Fort Collins, April 10th to October 6th; foot-hills five miles
west of Fort Collins, April 9th to August Ist (Baker and
Gillette ).

Mineus bioculatus Fab.

Colo. (Snow ).

Zicrona cuprea Dall.
Southern Colo., June (Carpenter—see Uhler, 7).

Podisus acutissimus Stal.
Colo. (Uhler, 6).

Podisus bracteatus Fitch. Det. Ashmead.
Colo. (Cockerell).

Podisus cynicus Say.

Colo, (Gillette—see Osborn, 1). Colo. (Snow—see Van Duzee, 5).
Spring Canon*, August Ist (Baker). Bailey (Snow).

Podisus gillettei Uhler n. sp.

“Nearly ovate, dull pale brownish made fnscous by the bronze-black clo e punctures
on the head, fore part and sides of pronotum, base of scutellum and base and end of
corium. Head finely and closely punctate with black, the tylus with a broad groove ou
each -ide, lateral lobes broad, rounded off on the outside of tip, a little longer than the
tylus. Antennae a little longer than the head and pronotum united, the basal joint very
short, not reaching the tip of the head, greenish yellow, a little dusky at base and tip, the
second joint about three times as long as the basal, testaceous, a little dusky above, the
third scarcely more than half as long as the second, blackish, paler at base, the fourth

A canon eight miles south-west of Fort Collins.

HEMIPTERA OF COLORADO, 13

and fifth blackish, both longer than the third, the fifth a little longer than the fourth.
Rostrum pale testaceous, piceous at tip, reaching upon the middle coxae,the third joint
very thick, a little longer than the fourth wh'ch is abruptly narrow. Pronotum more
remotely punctate on the disk, with the lateral margins very oblique, thick, callous,
broadly pale yellow, finely punctate and a little waved; the posterior margin feebly con-
cave, and the humeral angles tumidly rounded. Pectorial areas remotely punctate with
brown. Legs minutely pu. ctate with brown, darker above and on tips of tibiae, tarsi
piceous above, the nails also piceous. Scutellum long, minutely punctate, with an obso-
lete pale stripe on the middle, more conspicuous at tip, and with the usual pale callosity
in the basal angles. Corium and clavus with bare spots continued on the costal area.
Membrane bronze brown. Venter testaceous, remotely punctate with brown. Connexi-
vum polished, testaceous, marked with black scallops inwardly. Ventral spine very short.

Length to end of venter 13.5 mm. Width of case of pronotum 9.5 mm. This species
closely resembles a pale variety of Jalla dumosi Fabr. but the head is broader, basal joint
of antennae longer, and there are ten longitudinal veins to the membrane. One specimen,
a female, was captured in Colorado.”’

Rist Canon, April 10th (Gillette).
Podisus modestus Dall,

Swept from bushes in Beaver Brook Gulch and Clear Creek Canon during
early part of August (Uhler, 5).

Fort Collins, September 27th, on Clematis ligusticifolia
(Gillette). May 20th to June 24th, aud September 14th on
Solidago (Baker).

Podisus placidus Uhl.
Colo. (Gillette—see Osborn, 1).

Fort Collins, March 24th to May 4th (Gillette), and May
3d on box-elder (Baker).

Podisus serieventris Uhl.
Spring Canon, August Ist (Baker).
Podisus spinosus Dall.

Pueblo, Did not occur on the plains proper, but was swept from a bush in
the bed of the river (Uhler, 5),

Liotropis humeralis Uhl.

From bushes near Manitou (Uhler, 5). Colo. (Gillette—see Osborn, 1),
Montrose, June 24th (Gillette),

Prionosoma podopioides Uhl.

Denver (B. H. Smith—see Uhler,5 and 6). From bushes near Golden in
August (Uhler, 5). Colo, (Gillette—see Osborn, 1). Pueblo (Uhler, 9).

Trinidad, May 14th (Gillette).

Podops dubius Pal Beauy.

Colo. (Gillette—see Osborn, 1).

Fort Collins, April 6th (Gillette).

14 PRELIMINARY LIST

Brochymena quadripustulata Fab.

Colo. (Uhler, 1).

Brochymena annulata Fab.

Colo. (Uhler, 6). Colo. (Gillette—see Osborn, 1).

Fort Collins, June 16th, on willow; Rist Canon, April 3th;
Manitou, September 28th, on oak (Gillette). Fort Collins,
September 26th, on ash (Baker).

Brochymena obscura H. Schf.

Pueblo, July (Wilkins—see Uhler, 7).

Canon City, August 31st (Gillette).
Aelia americana Dall.

Steamboat Springs, July 14th (Baker). Veta Pass, June
24th (E. A. Schwarz).

Neottiglossa undata Say.

Colo. (Uhler, 6). Clear Creek Canon, August (Uhler, 5).
Neottiglossa melanocephala.

Fort Collins, May 27th, on currant (Baker).
Cosmopepla carnifex Fab.

One specimen by sweeping weeds in region of Arkansas River, near Pueblo
(Uhler, 5)}

Fort Collins, July 2d, on Mentha canadensis, and Septem-
ber 27th; Howe’s Gulch*, June 14th (Gillette). Steamboat
Springs, July 15th (Baker).

Cosmopepla conspicillaris Dall.

Hills and plains of Colo. September 19th and October 4th (Carpenter-—see
Uhler, 6). Colo. (Gillette—see Osborn, 1).

Fort Collins, July 2d,on Mentha canadensis; Howe’s Gulch,
June 14th (Gillette)

Mormidea lugens Fab.

On weeds near Canon City (Uhler, 5).
Euschistus fissilis Uhl.

Colo. (Uhler, 1 and 6). Southern Colorado, June—July (Carpenter—see
Uhler, 7). Colo. (Gillette—see Osborn, 1).

Fort Collins, April 23d to October 24th; Rist Canon, May
14th, and Spring Canon, June 30th to July 12th; Montrose,

*A gulch six miles west of Fort Collins

HEMIPTERA OF COLORADO. 15

June 24th (Gillette). Fort Collins, June 10th, at light; Boul-
der, September 4th (Baker).

Euschistus ictericus L.

Pleasant Valley, June 12th (Gillette.)

Euschistus impictiventris Stal.

Montrose, June 24th (Gillette).
Euschistus servus Say.

Near Arkansas River, August (Uhler, 5).
Euschistus tristigmus Say.

Colo, (Gillette—-see Osborn, 1).

This was probably an erroneous determination.
Euschistus variolarius Pal. Beauy.

Colo. (Uhler, 1 and 6). Denver, August 18th (Uhler, 5). West Cliff, Custer
County, May 23d, on Thermopsis (Cockerell, 10). Colo. (Gillette—see Osborn, 1).

Fort Collins, September 380th (Baker). Spring Canon
(Gillette).

Coenus delius Say.

Colo. (SQnow—see Van Duzee, 5).

Fort Collins, March 24th, and September 2d on Solidago
(Baker). Estes Park, Bailey (Snow).

Hymenarcys aequalis Say.

Near West Cliff, Custer County, July 30th (Cockerell, 10).
Lioderma ligata Stal.

Fort Collins, June 27th to August 18th; Rist Canon, May
29th to July 19th (Baker and Gillette), Golden, April 30th
(Gillette). Estes Park, August (EK. D. Varney). Steamboat
Springs, July 15th Baker).

Lioderma viridicata Uhl.

Roaring Fork (Rothrock—see Uhler, 6).
Pentatoma congrua Uhl.

Foot-hills of Colorado, September (Carpenter—see Uhler, 6).

Steamboat Springs, July 12th (Baker). Denver (Riley).
Pentatoma faceta Say.

Colo. (Uhler, 1).

Pentatoma juniperina L.

Estes Park, July 11th; Rist Canon, July 80th (Gillette).

16 PRELIMINARY LIST

Pentatoma sayi Stal.
Roaring Fork (Rothrock—see Uhler, 2). Foot-hills of Colorado, September
(Carpenter—see Uhler, 6). Golden, August 6th (Uhler, 5).

Silverton (Nat. Mus. Coll).
Pentatoma uhleri Stal.

Colo. (Uhler, 6).

Carpocoris lynx Fab.

Fort Collins, June 20th to October; Estes Park, July 11th:
Colorado Springs, August Ist (Gillette). Steamboat Springs,
July 12th to 26th (Gillette and Baker).

Trichopepla atricornis Stal.

North-east of Denver, August 18th (Uhler, 5).
Trichopepla semivittata Say.

On weeds in vicinity of Arkansas River, August 10th (Uhler, 5).
Peribalus limbolarius Stal.

Colo. (Uhler, 1 and 5) Nymphs moderately common on several kinds of
Flowering plants August 6th and 8th, in Beaver Brook Gulch and Clear
Creek Canon. A few days later imagos taken near Colorado Springs and at
Manitou. August 11th taken sweeping plants in mouth of Arkansas Canon
(Uhler, 5). Colo. (Gillette—see Osborn, 1).

Steamboat Springs July 12th (Baker). Bailey (Snow).
Veta Pass, June 24th (EK. A. Schwarz).

Peribalus piceus Stal.

Rist Canon, July 30th (Gillette)

Holcostethus abbreviatus Uhl.

Colo. (Uhler, 1). Beaver Brook Gulch, August 6th (Uhiler, 5).

_ Fort Collins, June 5th to October 7th (Gillette and Baker).
Steamboat Springs, July 26th (Gillette. Rist Canon
(Baker).

Thyanta custator Fab.

Colo. (Uhler, 6), Near Manitou, August 16th (Uhler, 3). Colo. (Gillette—
see Osborn, 1).

Fort Collins, June 21st to October, (Baker and Gillette).
Spring Canon, June 380th; Denver, July 20th; Lamar, May
ith (Gillette). Colorado Springs, Garden of the Gods
(Tucker).

Thyanta perditor Fab.

Colo. (Uhler, 6). Pueblo, August 10th (Uhler, 5), Colorado, common
(Uhler, 8),

HEMIPTERA OF COLORADO. 17

Thyanta rugulosa Say.

Colo. (Uhler, 1). Colo. (B. H. Smith—see Uhler, 6). Southern Colorado,
October (Uhler, 7). Moderately common in Clear Creek Canon and in Beaver
Brook Guleh. Occurred on wild gooseberry, and several kinds of bushes near
running streams _Uhler, 5).

Fort Collins, June 9th, in electrie light globes (Gillette).

Murégantia histrionica Hahn.

Colo. (Uhier, 1 and 6). Colo. (Uhler—see Packard, 2). Near Denver, in irri-
gated region, and also Golden, August 6; none found south of Denver (Uhler,
5). Golden, July 3d (Packard—see Uhler, 5).

Banasa calva Say.

Larva in Clear Creek Canon, August 6th (Uhler, 5). Imagos near Black-
hawk, July 2d (Packard—-see Uhler, 5).

Fort Collins, September 30th; Ouray, June 22d (Gillette).
Big Narrows of Poudre river, Larimer county, July 9th, on
willow (Baker).

Banasa dimidiata Say.
Estes Park (Snow—see VanDuzee, 5).
Banasa sordida Uhl.

Glenwood Springs, August 24th (Gillette).

Chariesterus antennator Fab.

Colo. (Uhler, 6). Manitou, August 138th, on a small oak tree (Uhler,5.
Colo. (Gillette—see Osborn, 1).

Horsetooth Gulch, May 18th (Gillette).
Corynocoris distinctus Dall.

Colo. (Uhler, 1 and 6).

S. Colo. (Nat. Mus. Coll.).

Archimerus calcarator Fab.

Colo. (Uhler, 1). Foot-hills (Carpenter—see Uhler, 6).

Boulder, September 4th (Baker).
Leptoglossus corculus Say.

Colorado—as questionably cinetus (Gillette—see Osborn, 1).

Fort Collins, June 29th, and July 4th in flowers of Yucca;
Pueblo, June 15th (Gillette). Boulder, September 4th; foot-
hills 5 miles west of Fort Collins, August 1 (Baker).
Chelinidea vittigera Uhl.

Colo. (Uhler, 6). Beneath a mass of prickly pears on hillside near Colorado

18 PRELIMINARY LIST

Springs, August 10th (Uhler, 5). Colo. (VanDuzee, 5).

Foot-hills, 5 miles west of Fort Collins, March 15th to May
19th, common under stones and about plants of Opuntia; Fort
Collins, April 23d to May 16th (Baker and Gillette).

Marégus inconspicuus H. Schf.

Colo. (Uhler, 1 and 6). Near Manitou, August 138th (Uhler, 5). Near Den-
ver (B. H. Smith—see Uhler, 5). Southern Colorado, June 5th (Carpenter—see
Uhler, 7).

Montrose, June 24th (Gillette).

Catorhintha guttula Fab.

Fort Collins, May 7th to October 28th (Baker and Gillette).
Foot-hills 5 miles west of Fort Collins, June 4th to August
3d (Gillette).

Catorhintha mendica Stal.

Colo. (Uhler, 1 and 6). Golden, July 3d (Packard—see Uhler, 5). Southern
Colorado, June 5th to July 5th (Carpenter—see Uhler, 7).

Colorado Springs (Tucker).
Ficana apicalis Dall.

Manitou, July 24th, on Clematis ligusticifolia (Gillette).
Anasa tristis De G.

Colo. (Uhler, 6). Taken beneath rubbish on a farm a few miles west of
Denver, August 18th. Not common (Uhler, 5). Colorado Springs, July (Yar-
row—see Uhler, 7). Southern Colorado, June (Carpenter—see Uhler, 7).

Known as a common and serious pest almost everywhere
squashes are cultivated. Hibernates under boards, stones,
and rubbish.

Tollius curtulus Stal.

Horsetooth Mountain, July 4th (Gillette).

Alydus eurinus Say.

Foot-hills of Colo, (Carpenter—see Uhler, 6). Manitou, July 15th (Packard
—see Uhler, 5). Near Denver (B. H. Smith—see Uhler, 5). Ula, Custer county
July 30th; also high alpine; in Mesa county, at about 7,000 feet (Cockerell, 10)
Alydus quinquespinosus Say.

Foot-hills of Cole. (Carpenter—see Uhler, 6).

Fort Collins, September 30th; Boulder, September 4th
(Baker).

HEMIPTERA OF COLORADO. 19

Alydus pluto Uhler.

Colo. (Uhler, 1). Foot-hills (Carpenter—see Uhler, 6). Near Denver (B. H
Smith—see Uhler,6). West of Denver, August 9th(Uhier, 5). Colo. (Snow—see
VanDuzee, 5).

Spring Canon, July 12th; Estes Park, July 12th (Gillette),
Alydus conspersus Mont.

Colo. (Montandon, 1). Colo. (Montandon—see Osborn, 1).
Protenor hbelfragei Hag).

Colo. (Uhler, 1 and 6).
Darmistus subvittatus Stal.

Fort Collins, June 25th (Baker). Foot-hills five miles west
of Fort Collins, March 12th to June 12th (Gillette).
Dasycoris nigricornis Stal.

North-east Colorado (Riley).

Dasyeoris humilis Uhler.

Colo. (Uhler, 1 and 6), Near Golden, August 6th (Uhler, 5). Colorado
Springs, July (Yarrow—see Uhler 7).

Fort Collins, April 26th; foot-hills 5 miles west of Fort
Collins, April 16th to June 13th (Gillette).

Scolopocerus secundarius Uhler.

Colo. (B. H. Smith—see Uhler, 6). Colo. (Gillette—see Osborn 1),

Foot-hills five miles west of Fort Collins, March 15th
(Gillette). Fort Collins, May 20th (Baker).

Neides muticus Say.

Colo. (Uhler, 1 and 6). Clear Creek Canon, entrance to Beaver Brook
Gulch, August 7th, flying in bright sunlight (Uhler, 5).

Manitou, June 25th; Montrose, June 24th (Gillette). Faot-
hills five miles west of Fort Collins, May 19th and 21st;
Steamboat Springs, July 15th to 26th (Gillette and Baker).
Fort Collins, March 18th (Baker).

Jalysus spinosus Say.

Pueblo (Yarrow—see Uhler, 7). Not uncommon in the valley of the
Arkangas east of Canon City, August 11th. Occurred in places slightly
wooded, where wild grape vines abounded (Uhler, 5).

Colorado Springs (Tucker).
Harmostes propinquus Dist.

Fort Collins, August 18th and 26th (Baker). Foot-hills five

20) PRELIMINARY LIST

miles west of Fort Collins, .uiy 12th and 30th (Gillette).
Harmostes serratus Fab.

Manitou, July 15th (Packard—see Uhler, 5).
Harmostes refiexulus Stal.

Colo. (Uhler, 1), Foot-hills, July to September (Carpenter—see Uhler, 6).
Sweeping weeds on hills west of Denver August 5th. Beyond Canon City,
August 11th. Colorado Springs, August 16th (Uhler, 5). Near West Cliff,
Custer County, end of July (Cockerell, 10).

Fort Collins, September 30th (Baker). Steamboat Springs,
July 14th and 26th (Baker and Gillette). The Rustic, Larimer
County, August 11th; Dolores, June 18th; Montrose, June
24th; Glenwood Springs, August 24th (Gillette). Aspen (W.
W. Willard). Colorado Springs (Tucker).

Harmostes reflexulus Stal. var. virescens Dall.

Howe’s Gulch, June 14th; Dolores, June 17th (Gillette).
All variations between this and the typical form occur
commonly.

Auteius impressicollis Stal.

Swept from bushes in the suburbs west of Denver, August?18th. Not
common (Uhler, 5).

Corizus hyalinus Fab.

Colo. (Uhler, 1). Foot-hills (Carpenter—see Uhler, 6). Pueblo, , July
(Yarrow—see Uhler, 7). Golden, July 38d, and on Arapahoe Peak, 11,000 to
12,000 feet, July Ist (Packard—see Uhler, 5). Widely distributed in Eastern
Colorado. Lodges in flowers of various plants, and seems to be common on
plains, foot-hills, and parks in the mountains. Less abundant in Clear Creek
Canon, but found everywhere west of Denver, around Colorado Springs, and
near Manitou. Lived singly in crowns of small flowers in Manitou Park.
Common on weeds in Arkansas Valley, and near mouth of Canon of Arkansas,
August 4th to 19th (Uhler, 5), Ula, Custer County, July 30th; also high alpine
(Cockerell, 10).

Howe’s Gulch, June 14th; Steamboat Springs, July 26th:
Glenwood Springs, August 24th (Gillette). Fort Collins, May
18th to July 14th, on alfalfa, barley, Sisymbrium canescens,
and Oenothera biennis (Baker). Colorado Springs, August
(Tucker).

Corizus lateralis Say,

Colo. (Uhler, 1 and 6). Swept from weeds on low hills near Colorado

HEMIPTERA OF COLORADO. Dil

Springs, August 18th (Uhler, 5).

Fort Collins, March 20th to August 25th, and September
27th on Bigelovia (Baker and Gillette). Foot-hills five miles
west of Fort Collins, June 5th and 14th; Steamboat Springs,
July 26th (Gillette).

Corizus nigristernum Sign.

Golden, July 3d (Packard—see Uhler, 5).

Rist Canon, June 13th (Gillette).
Corizus punctiventris Dall.

Colo. (Uhler, 1 and 6).

Fort Collins, September 30th (Baker). Steamboat Springs,
July 14th and 26th (Baker and Gillette). The Rustic, Larimer
County, August llth; Estes Park, July 12th; North Park,
July 20; Montrose, June 24th (Gillette).

Corizus validus Uhl.

Steamboat Springs, July 14th (Baker).
Leptocoris trivittatus Say.

Colorado, common (Uhler, 1). Colo. (Uhler, 6). Southern Colorado, July
(Carpenter—see Uhler, 7). Canon City, August 11th, at roots of cacti and
yuccas (Uhler, 5). Colo. (VanDuzee, 5).

Canon City, August 31st (Gillette). Very common in Fort
Collins and vicinity. Hibernates in large numbers about
buildings. Commonly called “brick-bugs” or “box-elder bugs,”
although not found commonly on box-elder.

Jadera haematoloma H. Schf.

Colo. (Uhler, 6).

Nysius angustatus Uhl.

Colo. (Uhler, 1). Above timber line in mountains of Colorado in June
(Carpenter—see Uhler, 6). Pueblo, July (Yarrow and Wilkin—see Uhler, 7).
Fort Garland, July (Hunt—see Uhler, 7). Golden, July 3d (Packard—see
Uhler, 5). Very abundant on tall weeds in cultivated grounds, near Denver,
at Golden, in Manitou Park, and near Canon City, August 6th to 18th (Uhler, 5).
Colo. (Gillette—see Osborn, 1).

Estes Park, July 12th; Leadville, August 23d (Gillette).
Fort Collins, July 29th; Steamboat Springs, July 15th, on
Solidago (Baker). Colorado Springs, Bear Creek Canon
(Tucker).

Nysius californicus Stal.

Colo. (Uhler, 1 and 6). Found sparingly on weeds in moist places, as well

22 PRELIMINARY LIST

on the plains as in canons and parks. Swept from flowers west of Denver, in
Clear Creek Canon, near Manitou and Colorado Springs, and more abundantly
near Canon City. On alow composite with pale whitish flower, Manitou Park,
August 14th (Uhler, 5). Golden, July 3d (Packard—see Uhler, 5).

Nysius minutus Uhler n. sp.

“Grayish fulvo-testaceous, pubescent, punctate with black, narrow, with the outer
margin of the hemelytra nearly straight. Head of medium length, comparatively acute,
pale dull fulvous, closely punctate, except on the immediate base, the punctures of the
sides especially black, a grooved line midway between the eye and tylus; throat black,
covered with small punctures, sericeous pubescent, with a white line next the eyes;
antennae fulvo-testaceous, the basal joint mostly black, reaching a little beyond the tip
of tylus, second joint about one-third longer than the third and both piceous at tip, the
fourth long blackish: rostum reaching behind the middle coxae, blackish piceous, some-
times paler at base. Pronotum subquadrate, a little wider than long, coarsely punctate
with black, especially on the sides of disk, the fulvous color of the middle of the head
carried back as a line between the callosities, the callosities and adjoining sutures and a
line each side of the convex posterior lobe black, the humeral callosities and a short line
on the middle of the posterior border whitish, humeri nearly surrounded by black.
Pectoral areas black, minutely sericeous pubescent, coarsely punctate anteriorly, with a
series of large white spots, including the coxae, extending from behind the throat tothe
metapleura, the outer angle and posterior margin of the metapleura and collar next the
throat whitish or white, legs dull fulvo-testaceous, the formora mostly black beneath.
Seutellum fulvo-testaceous, coarsely punctate and with a black mark on each basal
angle, the middle line black, including the blunt base of the middle carina, which
becomes very slender on the depressed apex of the scutellum. Hemelytra whitish,
minutely pubescent. obsoletely and mini'tely punctate, with the veins and inner and
posterior margin interruptedly streaked with brown, the apex of the clavus with a
brown dot; membrane long, whitish hyaline, with a few brown flecks near the middle and
from thence outwards. Abdomen piceous or blackish, narrow, polished, closely covered
with fine white pubescence. Length to tip of abdomen, male 3-35 mm. Width of
pronotum, .75 mm.

This is a common species in many parts of the western states, from Dakota to Colorado,
California and Texas. On the eastern side of the continent it inhabits Canada, New
England, New York, New Jersey, Maryland, Virginia, and North Carolina.”

Fort Collins, June 4th to October 15th, and September 27th
on Bigelovia; Pleasant Valley, June 12th; The Rustic, Lari-
mer County, August llth; Estes Park, July 12th; Grand
Junction, August 26th, on sugar beets; Colorado Springs,
August 3d; Montrose, June 24th (Gillette). Steamboat
Springs, July 14th; Fort Collins, July 29th, on sugar beets,
and July 26th, very injuriously abundant on mustard
(Baker).

Nysius thymi Wolff.
Estes Park, July 12th (Gillette).

Orsillus scolopax Say.
Fort Collins, August lith, on Glycyrrhiza lepidota (Baker).

Ischnorhynechus didymus Zett.
Southern Colorado (Yarrow—see Uhler, 7). Denver and Canon City (Uhler,

HEMIPTERA OF COLORADO. 23
5). Colo. (Gillette—see Osborn, 1).

Rist Canon, May 29th; Estes Park, July 12th; Montrose,
June 24th: Manitou, June 25th to September 29th (Gillette).
Fort Collins (Baker). Manitou Park, Cheyenne Canon
(Tucker).

Cymus luridus Stal.

Swept from weeds near Arkansas river, east of Canon City, August 11th
(Uhler, 5). Near West Cliff, Custer county, end of July (Cockerell, 10),
Cymodema tabida Spin.

Fort Collins, March 28th to April 26th under boards (Baker).
Garland, June 18th (EK. A. Schwarz).

Blissus leucopterus Say.

Pleasant Valley*, June 12th, a single specimen (Gillette).
Dixon’s Canon, February 28th, one specimen under a stone
(Baker ).

Ninyas pallens Stal.

Colo. (Riley).
Geocoris borealis Dall.

Fort Collins, March 24th, under board; Glenwood Springs,
August 24th (Gillette).

Geocoris bullatus Say.

Pueblo (Yarrow—see Uhler, 7). Foot-hills, July (Carpenter—see Uhler, 6),
Collected around the roots of weeds on foot-hills and plains west of Denver,
August 18th. Very pale varieties of this species occur on light colored sand;
those from canons and mountain altitudes are darker (Uhler, 5).

Geocoris decoratus Uhler.

Clear Creek Canon, August 3d, in warm, sunny spots on dark sand (Uhler,
5). Ula, Custer County, November 12th (Cockerell, 10).

Geocoris fuliginosus Say.

Denver, August 5th (Uhler, 5),
Geocoris Sriseus Dall.

Estes Park, July 10th (Gillette).
Geocoris limbatus Stal.

Steamboat Springs, July 26th (Gillette.)

Geocoris pallens Stal.

*Six miles north-west of Fort Collins. °

24 PRELIMINARY LIST

Colorado Springs, August 3d; Lamar, May 7th; Glenwood
Springs, August 24th; Dolores, June 18th (Gillette). Fort
Collins, June 29th on sugar beet, and August 15th; foot-
hills five miles west of Fort Collins, August Ist (Baker).
Geocoris piceus Stal.

Colo. (Uhler, 1 and 6).

Geocoris punctipes Say.
Colo. (Uhler, 6).
Oedancala dorsalis Say.
’ Valley of Arkansas near Canon City (Uhler, 5).
Crophius bohemani Stal. Det. through Riley
Montrose, June 24th (Gillette.)
_Crophius disconotus Say.

Foot-hills five miles west of Fort Collins, March 15th to
August Ist, and May 12th abundant on Pinus ponderosa var.
scopulorum (Gillette and Baker). Golden, April 30th
(Gillette). Fort Collins, May 16th on alfalfa, May 31st on
apple, and April llth very abundant along a fence row,
flying in the sunshine ( Baker ).

Ligyrocoris constrictus Say.

Southern Colorado June and July (Carpenter—see Uhler, 7).

Livermore, Larimer county, August 11th (Gillette).
Ligyrocoris sylvestris Linn.

Foot-hills (Carpenter—see Uhler 6). Near Manitou, August 15th (Uhler, 5.)
Colo. (Gillette—see Osborn, 1).

Fort Collins, August ISth (Baker). Steamboat Springs,
July 15th and 26th (Baker and Gillette).

Myodocha serripes Oliy.

Valley of Arkansas river, east of Canon City, August 11 (Uhler, 5).

Heraeus insignis Uhler.

Colo. (Uhler, 1 and 6). Near Golden, at mouth of Clear Creek Canon,
August 7 (Uhler, 5).

Pamera una Say.
Ouray, July 17th; Fort Collins, September 27th (Gillette),
Ptochiomera clavigera Uhler n.sp.

“Similar in form to P. nodosa, Say, but shorter and thicker, with a dull dark surface

HEMIPTERA OF COLORADO. 25

and thicker clavate antennae. Color dark brown, closely and coarsely punctate with
fuscous, pubescent. The head thick, abruptly contracted at tip, clothed with bronze
pubescence, closely punctate; the rostrum thick, brown, reaching between the anterior
coxae; antennae piceous, paie p .bescent, blackish on the two long and very thick clavate
apical joints, the basal joint thick, scarcely longer than the tylus, the second much
shorter, more slender, growing thicker towards the tip; the ocelli very large and promi-
nent, coursely and densely granulated. Pronotum thick, a little longer than wide, almost
flat above; the anterior lobe nearly twice as long as the posterior one, the two separated
each side by a deeply incised line; the lateral edge moderately oblique, reflexed, a very
little curved; collum distinct. but rather turned up than ridged; the middle of posterior
margin indented, the anterior margin as wide as the head to the middle of the eyes; the
humeral angles callous, long triangular. Pleural pieces reddish brown, somewhat
coarsely punctate. Coxae dull yellow; femora obscure yellow, pale fuscous on the
middle; the tibia tinged with brown: tarsi more orless piceous. Scutellum reddish brown,
punctate, the apex with a long thick carina. Hemelytra thick, opaque, coarsely punctate
in somewhat longitudinal lines, bare parts of the surface dull fulvous, the costal border
testaceous, interrupted by about four black spots; the broad apex almost truncated,
sometimes marked with two or three yellow dots; the membrane brown, very small or
absent. Abdomen dark dull or brown, closely punctate, spread with minute bronze pub-
escence; the connexivum wide, sharp edged, with a yellow dot on the apex, and sometimes
with testaceous specks at the outer end of the sutures; anal segment of the male large
and prominently convex, very dark brown.

Length to end of abdomen2.6 mm. Width of pronotum.75mm. Three or four speci-
mens are in the Colorado Agricultural College collection. In my own cabinet may be
seen specimens from New York, Texas, and the vicinity of Denver and Manitou.
Colorado ”

Fort Collins, April 6th (Baker). Poudre Canon*, Maren
16th to April 22nd (Gillette). The specimens taken were
found under boards and stones. This is the species recorded
from Colorado as P. diffusus Uhler (see Uhler, ]).

Ptochiomera puberula Stal.
Denver, August 8th (Uhler, 5).

Cnemodus mavortius Say,
Colorado, August (Riley ).

Trapezonatus nebulosus Fall.

Colo. (Uhler, 1 and 6). Southern Colorado,, June, July (Carpenter—see
Uhler, 7). Moderately common at Denver, also few from plants in Beaver
Brook Gulch, August 6th (Uhler, 5). Custer county, mid-alpine (Cockerell, 10).

Fort Collins, February 19th to September 2d Baker and
Gillette). The Rustic, Larimer county, August 11th; Foot-
hills seven miles north-west of Fort Collins, March 16th;
Manitou, June 25th; Montrose, June 24th; Dolores, June
18th (Gillette). Steamboat Springs, July 14th (Baker).
Colorado Springs, Manitou Park (Tucker).

Emblethis arenarius Linn.

Colo., seems to be quite common (Uhler, 6). Quite common in eastern

*The canon of the Poudre river, 10 miles north-west of Fort Collins.

26 PRELIMINARY LIST

Colorado as well on plains and foot-hills as in mountains. Near Denver and
also in Clear Creek Canon, August 6th (Uhler,5). Summit of Arapahoe Peak,
13,000 feet, July 14th (Packard--see Uhler, 5). Custer county, midalpine
(Cockerell, 10). Colo. (Gillette—see Osborn, 1).

Fort Collins, February 19th to April 16th; Spring Canon,
March 12th (Gillette).
Peritrechus fraternus Uhl.

Ula, Custer county, November 12th (Cockerell, 10).

Rhyparochromus floralis Uhler n. sp.

“Long-elliptical, rusty fulvous, opaque, minutely sericeous pubescent. Head piceous
paler or rufo-fulvous at tip, subconic, nodding, smooth, shorter than the pronotum,
minutely scabrous, strongly convex above, with the throat pale rufo-fulvous; antennae
stout, about as long as the pronotum and corium united, dull fulvous, pale pubescent,
with the fourth joint and apex of the third blackish piceous, the basal joint extending a

little beyond the tip of the head, second much longer, the third about one-half longer but
a little shorter than the second, the fourth about equal to the second; rostrum reaching
upon the middle coxae, slender, pale fulvous, with the apical joint black. Pronotum sub-
quadrangular, a very little wider at base than at tip, fulvous or rufo-fulvous, dull testa-
ceous and punctate with black on the basal one-third, the lateral margins a little reflexed,
black, slightly convexed next the apical angle, the submargin ivory white, expanding
posteriorly where it abuts against a tumid black humeral spot, the inner boundary of
this stripe and the anterior submargin finely punctate with black, disk not distinctly
punctate, behind this is a feebly raised whitish line. Scutellum very long and acute
fulvous, transversely indented on the middle, finely punctate before the middle and
corsely punctate with black towards the tip, the middle line more or less black. Corium
whitish testaceous, with about nine slender black oblique lines (including the clavus)
which are mostly composed of impressed punctures, the costal border and a transverse
spot upon a wide black area, which also covers the cuneus, dull white, exterior reflexed
edge of costal border dark brown; membrane smoke brown, with a short white spot next
the tip of cuneus, and a double fainter one at tip. Legs pale fulvous, pale on middle of
tibiae and base of tarsi, apices of tibiae and tarsi piceous. Pectus dark rust brown, paler
anteriorly, the segments on the posterior border and a spot above each of the coxae
pale yellow. Venter dull black, bordered above with testaceous or fulvous.

Length to tip of venter, 6-6.5 mm. Width of pronotum, 1.75-2mm. This seems to be a
common species in Colorado, Montana, California, etc.”

Abundant at Fort Collins, throughout the season, under

stones, etc., usually in company with Formica neoclara Em.
(Baker).

Rhyparochromus (Dorachosa) illuminatus Dist.

Dixon’s Canon, February 28th, under a stone (Baker).
Eremocoris fertis Say.

Custer county, midalpine (Cockerell, 1C), Colo. (Gillette—see Osborn, 1).

Dolores, June 16th (Gillette).

Eremocoris tropicus Dist.

Fort Vollins, March 26th; foot-hills five miles west of Fort
Collins, March 15th and 16th (Gillette).

HEMIPTERA OF COLORADO. 2

Peliopelta abbreviata Uhl.

Clear Creek Canon, August 6th (Uhler, 5).
Melanocoryphus admirablis Uhi.

Colo. (Uhler, 6). Ula., Custer Co., Nov. 12 (Cockerell, 10).

Rist Canon, May 29th; Montrose, June 24 (Gillette).
Melanocoryphus hbicrucis Say.

Colo. (Gillette—see Osborn, 1).

Horsetooth Gulch, May 18th; Dolores, June 16th; Montrose,
June 24th (Gillette).

Melanocoryphus facetitts Say.

Foot-hills, July (Carpenter—see Uhler, 6). Swept from yuccas near Den-
ver; most common near Colorado Springs, August 13th to 17th, and were gener-
ally in shelter beneath dried dung, chips, stones or about the roots of yuccas
(Uhler, 5). In a meadow at Nathrop, Chaffee County, August 14th (Cockerell,
10) Colorado (Gillette—see Osborne, 1).

Fort Collins, June 9th, on alfalfa and in electric light globes;
foot-hills five miles west of fort Collins, February 28th to
August Ist (Gillette and Baker). Trinidad, May 14th; Grand
Junction, August 28th; Leadville, August 23d (Gillette).
Denver, at light (R. C. Stephenson).

Lygaeus admirabilis Uhl.
Colorado (Uhler, 1).

Pleasant Valley, June 12th; Fort Collins, June 10th

(Gillette).

Lygaeus circumcinctus Sta
Colorado (Carpenter, 1).

Lygaeus Kalmii Stal.

Custer County, midalpine (Cockerell, 10)
Lygaeus melanopleurus Uhl.

Foot-hills five miles west of Fort Collins, June 14th to Sep-
tember, lst; North Park, July 20th (Gillette). Steamboat
Springs, July 16th and 26th (Baker and Gillette).

Lygaeus reclivatus Say.

Found at 14,000 feet in abundance on surface of snow. Found above
timber belt from May to October, throughout an area of 20,000 square miles
(Carpenter, 1). Colorado (Uhler,6). Pueblo, July (Yarrow and Wilkin—see
Uhler, 7). Boulder, June27th; Arapahoe Peak, 10,000 to 12,000 feet, July Ist;

28 PRELIMINARY LIST

Manitou, July 15th; summit of Pike’s Peak, 13,000 feet, July 14th; Garden of the
Gods, July 13th; Gray’s Peak, about 14,000 feet, July 7th (Packard—see Uhler, 5).
Everywhere, Denver to Canon City, August 6thto 18th. Among roots of yuccas,

near Colorado Springs and Manitou. Swept from weeds near bunches of
q

Asclepias in mouth of Arkansas Valley. Dwells on Asclepias (Uhler, 5).
Ula, Custer County, November 12th (Cockerell, 10). Fort Collins (Riley and
Blount, see Cockerell 10). Colorado (VanDuzee, 5)

Montrose, June 24th (Gillette). Fort Collins, March 20th to
April 20th (Gillette and Baker). Manitou Park (Snow).
Colorado Springs (Tucker).

Lygaeus turcicus Fab.

Lower end of Wet Mountain Valley, just in Fremont County (Cockerell,
10).

Largus cinctus H. Sch.

Colorado—as succinctus (Gillette—see Osborn, 1).

Lamar, May 7th (Gillette). Cheyenne Canon (Tucker).
Largus suceintus Linn.

Colorado (Uhler, 1). Southern Colorado (Uhiler, 6)

Brachytropis calearata Fall.

Near water, in weedy places on outskirts of Denver, August 4th (Uhler, 5).

Steamboat Springs, July 12th on Carex (Baker).
Megaloceroea debilis Uhl.

Berthoud Pass and other parts of Colorado (Uhler, 1). Colorado (Uhler, 5).

Fort Collins, June 4th to July 24th; Steamboat Springs,
July 26th, and July 12th on Carex (Gillette and Baker).
Megaloceroea rubicunda Uhl.

Colorado (Uhler, 1 and 6).

Trigonotylus pulcher Reut.

Fort Collins, October 15th; Pleasant Valley, June 12th;
Kstes Park, July 12th; Lamar, May 7th; Trinidad, May 14th;
(Gillette). Fort Collins, June 13th, on cottonwood sprouts,
and July 29th (Baker).

Trigonotylus ruficornis Fall.

Colorado (Uhler 1 and 6). On weeds and grass in damp situations near
Denver, and also on hills near water a few miles west of Denver (Uhler, 5).
Colorado (Gillette—see Osborn, 1).

The last record perhaps refers to pulcher.
Miris affinis Reut.

Roaring Fork (Rothrock—see Uhler, 2). Hills, July (Carperter—see Uhler,

HEMIPTERA OF COLORADO 29

6). Southern Colorado, July (Carpenter—see Uhler, 7). Yellow varietes on
weeds near water, in suburbs of Denver. Green variety, marked with
fuscous, from rank growing plants in Beaver Brook Gulch, August 6th
(Uhler, 5). Ula, Custer County, July 30th (Cockerell, 10). Estes Park (Snow—
see VanDuzee, 5).

Fort Collins, May 8th to October 7th and June 9th, on
alfalfa and barley (Baker). Foot-hills five miles west of
Fort Collins, May 11th to 19th; Manitou, June 25th (Gillette).
Veta Pass, June 21st (KH. A. Schwarz .

Teratocoris discolor Uhl.

Garland, June 18th (EK. A. Schwarz—see Uhler, 3).

Teratocoris longicornis Uhiler n. sp.

“Hlongated, bright green, resembling a Miris. Head very slightly nodding, green,
broad, the front tabulated above and bounded by deep sutures, black anteriorly along
the depressed middle line and also each side, the vertex produced in an arch posteriorly,
and with a black arc at base; tylus black. rostum reaching midway between the middle
and posterior coxae; mostly greenish-testaceous, piceous at tip; antennae long, the basal
joint green, the other joints dull reddish, the basal one as long as the vertex and pronetum
united, the second as long as the pronotum and clavus united, the third and
fourth broken from the specimen. Pronotum trapezoidal, a little longer than
wide, flat anteriorly, the sides gradually oblique, with the edge reflexed, a
little constricted behind the line of the callosities and crossed there by a black band, the
middle line unevenly impressed, black, connected behind with a broad black band across
the base, which is vbsoletely punctate and wrinkled, the submargin before the humeri
tabulated and with the edge not reflexed, posterior margin very slightly sinuated.
Sternum whitish along the middle. Legs green, the tibiae and the tarsi more or less
yellow, with the nails and apex blackish. Scutellum black, with a large yellow spot near
each basul angle. Hemelytra green, long elliptical, minutely rugulose and punctate, the
costal border prominently retlexed; membrane long, dull whitish, faintly dusky at
base, including the base of vein. Mesosternum, posterior coxae and middle and wupex of
venter, pale yellowish, the abdomen minutely pubescent.

Length to tip of abdomen 4.5 mm. To tip of membrane55mm. Width of pronotum
1.25 mm. This is a well marked species of which only a single male was sent to me from
Colorado. Lhe genital hook is placed on the left side, and is long, stout and moderately
curved. In this specimen the base of the scutellum is broadly exposed. A series of both
sexes is greatly desired for comparative study.”

Steamboat Springs, July 12th on Carex (Baker).
Leptoterna amoena Uni.

Steamboat Springs, July 14th and 26th (Baker and Gillette).
Listes Park, July 10th; North Park, July 20th; Colorado Springs,
August 3d (Gillette).

Resthenia atripennis Reut.

Foot-hills twelve miles west of Fort Collins, June 30th
(Gillette).

Resthenia bivittis Stal.

Steamboat Springs, July 26th; North Park, July 20th
(Gillette).

30 PRELIMINARY LIST

Resthenia contraterna Uhl.

Colorado (Uhler, 1 and 6). Beaver Brook, August 6th (Uhler, 5). Idaho
Springs, July 6th (Packard—see Uhler, 5). Colorado (Gillette—see Osborn, 1).
Resthenia insignis Say.

Colorado (Uhler, 1 and 6). Colorado, as insignis and as rubrivittata
{Gillette—see Osborn, 1).

North Park, July 20th(Gillette). Steamboat Springs,
July 15th; Rabbit Ears Pass, July 20th (Baker).

Resthenia insitiva Say.
Colorado (Gillette—see Osborn, 1).
Resthenia maculicollis Reut.

Foot-hills twelve miles west of Fort Collins, June 30th
(Gillette).

Oncerometopus nigriclavus Reut.
Colorado (Gillette—see Osborn, 1).

Dolores, June 18th; Estes Park, July 12th (Gillette).
Steamboat Springs, July 18th (Baker). Colorada Springs
(Tucker).

Oncerometopus ruber Reut.

Foot-hills five miles west of Fort Collins, September 1st
(Gillette).

Lopidea confiuens Say.

Estes Park (Snow). North-east Colorado (Riley).
Lopidea marginata Uhl.

Colorado (Uhler, 8).
Lopidea media Say.

Foot-hills and plains, September 19th and October 4th (Carpenter—see
Uhler, 6). Plentiful at Denver, Golden, Colorado Springs, and in the valley of
the Arkansas near Canon City, August 5th to 18th. Occured most frequently
upon the wild rose bushes (Uhler, 5), August 12th at Cottonwood Creek,
Pleasant Valley, Fremont County (Cockerell, 3). West Cliff, Custer County,
July 3lst on Glycyrrhiza lepidota (Cockerell, 10). Colorado (Gillette—see
Osborn, 1).

Lopidea nigridia Uhbler n. sp.

“Thicker and more compact than L. media Say, mostly dull black, pubescent, narrowly
margined with rufo-fulvous or rufous on the outer border of the corium, including most
of the cuneus. Head a little thicker than typical, dull black, pubescent, with a yellow
spot on each side of the vertex next the eye, continued slenderly downward, a red spot
on each side of the tylus, and the cheeks and sides below also red, with black sutures, the

HEMIPTERA OF COLORADO 31

gula black and the tylus shining black, antennae black, moderately stout, the basal
joint much longer than the head, the second joint as long as from base of
pronotum to front of eye, the third gradually decreasing in thickness, about
two-thirds the length of the second, the fourth more slender, acutely tapering,
about one-third as long as the third joint; rostrum all black or black at base,
rufo-piceous posteriorly, reaching to posterior coxae. Pronotum wide, moderately
short, the anterior lobe almost flat, with the front border reflexed, thick,
whitish, and sinuated in the middle, callosities large, diagonal, prominent, black,
with the deep space between also black, the posterior lobe convexley elevated transversly,
faintly rufous on asmoky ground color, wrinkled, the posterior margin a little sinuated,
with the edge depressed and thin and the middle of the submargin distinctly indented; ;
the lateral margin reflexed throughout, including the border of the humeri; pleura
rufous, a little fuscous anteriorly andonthesternum. Middleand posterior pectus black.
Legs shining black. Scutellum dull black, tumid, indented at base. Hemelytra brownish
black, irregularly granulated, and hairy, especially upon the clavus, outer border of the
corium red, the color becoming wider posteriorly and covering nearly the whole cuneus,
Abdomen black, shining, minutely pubescent.

Length to end of abdomen 5 mm. Width of pronotum 1,75 mm. Numerous specimens of
this insect are present in the collectionof the Colorado Agricultural College. It inhabits
also New Mexico and Arizona.”

Estes Park, July 12th (Gillette), Steamboat Springs,
July 16th on willow and Delphinium occidentale (Baker).

Lopidea obscura Uhl.

Steamboat Springs, July 26th; North Park, July 20th
(Gillette). Steamboat Springs, July 12th to 16th, on willow
Delphinium occidentale, and Artemisia tridentata (Baker).

Lomatopleura caesar Ruet.
Colorado (Gillette—see Osborn, 1).

Fort Collins, July 24th to August 11th on Glycyrrhiza
lepidota, and September 27th on Rhus trilobata (Baker and
Gillette). Foot-hills five miles west of Fort Collins, June 5th
to 14th; Colorado Springs, August 3d (Gillette),

Hadronema militaris Uhl.

Colorado (Uhler, 1). Roaring Fork (Rothrock—see Uhler,2). Hills, July
to September (Carpenter—see Uhler, 6.) Clear Creek Canon, well up on the
mountain side, August 6th (Uhler, 5). Blackhawk, July 2d (Packard—see
(Uhler, 5). Smith’s Park, Custer County, August 6th; also high alpine
(Cockerell, 10). Colorado (Gillette—see Osborn, 1). Colorado (VanDuzee, 5).

Fort Collins, June 4th; Rist Canon, June 12th to July 30th;
Estes Park, July 9th; North Park, July 20th; Steamboat
Springs, July 26th; Georgetown, July 19th; Colorado Springs,
August 3d; Montrose, June 24th (Gillette). Estes Park
(Snow). Colorado Springs (Tucker).

Hadronema picta Ubler n. sp.

“Form nearly the same asin H. militaris. Having the antennae a little shorter, with

ae PRELIMINARY LIST

the second and third joints nearly of equal length. Head dull black, hairy, short, and
transverse above, the vertex transversely impressed, prominently elevated behind; face
tumid y convex, marked with a yellow stipe on the middle and a line of the same color on
the groove next the inner margin of the eyes; cheeks, throat and bucculae pale
greenish yellow; rostrum stout, greenish, black on the two apical joints, reaching upon
middle coxae; antennae short, thick, the second not quite as long as the width of the
base of pronotum, the third a very little shorter and not much thinner. Pronotum trans-
verse, red or orange, set with erect black hairs, the collum white, and the band including
the callosities black; lateral margins sharp, but not very prominent, pleural and sternal
areas pale greenish, with the sutures an | the areas between the coxae black. Legs pale
fulvous at base, the apex of femora, and the tibiae and tarsi black. Scutellum pale
rufous or yellow with the base blackish. Corium pale yellowish, with a large long black
spot running back to tip, clavus nearly or all black, cuneus pale yellowish, bordered
inwardly with black, membrane blackish. Abdomen pale greenish, with the ovipositor.
genitalia and some short slender lines on the sutures of the segments black.

Length to tip of abdomen 3.5—3.75 mm. Width of pronotum 1.12—1.25 mm. Specimens
of both sexes were kindly sent to me by Prof. Snow and Prof. Gillette. The tirst were
collected at Colorado Springs, in July, by Mr. E. 8. Tucker. Damaged specimens, from
alcohol, were obtained for mein Dakota, and I captured a weather-worn specimen west
of Denver in the month of August.”

Hadronema princeps Uhl.

Fort Collins, June 4th; Rist Canon, June 13th to July 30th;
Gore Pass, July 29th; North Park, July 20th (Gillette).
Steamboat Springs, Juty 12th to 16th, on Delphinium occi-
dentale and other low plants (Baker).

Hadronema pulyerulenta Uhl.

Colorado (Gillette—see Osborn, 1).

Fort Collins, May 6th, about roots of a rose bush (R. C.
Stephenson). Soldier Canon, May 19th; Golden, April 30th
(Gillette). . Fort Collins, September 26th, on elm (Baker).

Hadronema robusta Uhl.

Colorado (Cockerell—see Ashmead in litt.).
Pachytropis nubilus Uhl.

Steamboat Springs, July 26th (Gillette).
Phytocoris colon Say.

Colorado (Gillette—see Osborn, 1).

Phytocoris interspersus Uhler n. sp.

“In form similar to P. eximus Reut., but larger, and almost flat on the hemelytra.
Pale delicate green, mottled with very pale brown all over the hemelytra, which are
almost hirsute and the hairs interspersed with dark bristles. Head of medium size,
convex, smooth, pubescent in front and on the sides: the eyes brown, prominent, reniform,
placed almost vertical; front feebly grooved to near the back line of the eyes; rostrum
thick at base, reaching well behind the posterior legs, dusky at tip; the antennae longer
than the body, whitish, set with long bristles, the second joint longer than from the front
to the posterior coxae, less hairy than the basal joint, the third a little more slender,
about two-thirds the length of the second, the fourth much shorter and equally slender,
the basal joint of medium thickness, about as long as the fore femur. Pronotum smooth,
much wider than long, obsoletely veined with fulvous, contracted before the middle, a

HEMIPTERA OF COLORADO. ® 33

little bristly on the sides and anteriorly, the region of the callosities transversely sunken,
lateral margins deflexed, thick, fringed with dark bristles, collum narrow, whitish. Legs
long, pale yellowish green, the posterior femora mottled with pale brown, tibial spines
long, blackish.- Scutellum convexly prominent, bald, polished, with the tip bent down,
two black dots just back of it, and the lateral edge a little reflexed. Clavus and corium
indented, rugose, set with silvery and dark-hairs, the lateral margins gently
curved, the costal submargin interrupted with pale brown lines; the membrane very
large, faintly smoky, minutely flecked with brown. Venter whitish green, pubescent,
polished.

Length to end of abdomen 4mm. To tip of membrane6mm. Width of pronotum 2
mm. Only one specimen of this neat insect is known to me. It is afemale taken in
Cheyenne Canon, Colorado Springs, July (Tucker); it is somewhat above the average size
of the species in this genus, and it bears a general resemblance to some of the green types
of the genus Oncotylus, which might cause it to be confused with some of them.”

Phytocoris pallidicornis Reut
Colorado (Riley).
Neurocolpus nubilus Say
Near Denver, August 4th (Uhler, 5). Colorado (Snow—see VanDuzee, 5).
Colorado (Gillette—see Osborn, 1).
Colorado Springs, Garden of the Gods (Tucker).
Neurocolpus inops Say.

On small plants in Beaver Brook Gulch, next to Clear Creek Canon, August
6th (Uhler, 5).

Compsocerocoris annulicornis Reut
Colorado (Snow—see VanDuzee, 5).

Callodemas Uhler n. gen.

“Having the features of a greatly elongated Calocoris. Head vertical, wider than the
eollum, having a short neck, the vertex transverse, front broad tumido-conical, with the
eyes reniform, prominent, and placed below the level of the vertex, line between the front
and tylus deeply cut, the tylus long, thick, subcylindric, prominently curved at base;
superior cheeks quadrangular, wide, almost flat, placed a little obliquely, the base of
antennae very thick, deep seated directly above the quadrangular cheeks, against the
inferior third of the eyes, lower cheeks rhomboida]l, placed nearly horizontal beneath the
eye; bucculae narrow, short, not extending beyond the inner line of the eye; rostrum
quite thick at base, the basal joint reaching upon the anterior coxae. Anterior border of
prosternum with a narrow, double, curved fold, mesosternum tumidly elevated. Prono-
tum transverse, abruptly sloping in front, the front border very narrow, carrying a
prominent collum which is but little wider than the base of the head. Scutellum widely
exposed at base, deeply incised across the disk, the posterior division triangular and
almost equilateral. Hemelytra long and narrow, the costal border almost straight, veins
distinct, regular, membrane long and wide, the looped vein fusiform in contour, round at
the outer end, slenderly acute at the inner end, the adjoining areole but little shorter.
Abdomen almost flat above, widely curving behind the base, with the connexivum
broadly refiexed.”’

Callodemas laevis Ubler n.sp.

“Long-suboval, yellow tinged with green, bald, polished. Head highly polished, eyes
dark brown, pale behind; rostrum pale testaceous, piceous on the apical joint, reaching to
behind the posterior coxae: antennae filiform, very long, set with black stiff hairs, the
basal joint thick, as long as from the front of the eye to the apex of the middle coxae, the
second not quite as stout, longer than the corium, the other joints destroyed. Pronotum
rapidly narrowing obliquely towards the front, the lateral margins sinuated, with the

34 - PRELIMINARY LIST

humeri rounded, lobate, the posterior margin a little sinuated on the middle, and deeply
excavated inwardly from the humeri, middle sometimes with two black dots. Scutellum
long triangular, acute at tip, obsoletely punctate in parts near base, each side next the
pronotum sometimes with a black spot. Clavus a little dusky, corium with a dusky large
spot behind the middle which is triangularly forked on the posterior end, the surface
remotely spread with minute silky pubescence; membrane dusky at base and apex,
omitting the centre of the areoles, the veins pale yellow. Legs yellow, with the femoral
and tibial spines darker; tip of tarsi and the nails piceous. Tergum black, excepting the
sides and end which are greenish yellow. Venter light clear yellow.

Length to end of abdomen 8 mm. To tip of membrane9 mm. Width of pronotum 2
mm. One specimen, a female, is in the collection from Colorado, and another from New
Mexico.”

Glenwood Springs, August 24th (Gillette).
Calocoris palmeri Uhl.

Southern Colorado (Uhler, 6).
Calocoris rapidus Say.

Colorado (Uhler, 1 and 6). Pueblo, August 10th (Uhler, 5). Pueblo, June
(Yarrow—see Uhler, 7). Custer County, midalpine (Cockerell, 10).

Fort Collins, July 14th to August 11th; July 14th on alfalfa
and Oenothera biennis; Steamboat Springs, July 14th, on
Solidago and other low herbs (Baker). Rist Canon, July 14th;
North Park, July 20th; Estes Park, July 12th; Steamboat
Springs, July 26th (Gillette).

Calocoris superbus Uhl.

West Cliff, Custer County, July 27th (Cockerell, 10). Colorado (Gillette—
see Osborn, 1).

Fort Collins, June 23th to August 25th, and September 27th
on Senecio douglassi (Baker and Gillette).
Calocoris tinctus Uhler n. sp.

“Oblong-oval, olive brownish, moderately pubescent, mostly bald above. Head long
nutant, contracted obliquely on the front, the vertex a little sunken, longitudinally
incised, bounded behind by a prominent ivory white carina, the front most compressed
next the line of the tylus, tylus smooth, dark brown; rostrum reaching behind the
posterior coxae, pale rufo-piceous; antennae long and slender, as long as pronotum and
corium united, pale dull fulvous, a little darker on the last two joints and tip of second
joint, the second joint a little thicker than the following ones, as long as the head and
pronotum united, the third and fourth filiform, together a little shorter than the second.
Pronotum wider than long, trapezoidal, moderately convex, almost regularly punctate,
with the collum, lateral and posterior margins almost straight, white, the submargin and
callosities black, anterior angles a little rounded; pleural flaps deep, black, polished,
coarsely remotely punctate and wrinkled, sternum blackish brown, the borders of pleural
areas white. Legs brown, paler at base and on the trochanters, nails black. Scutellum
moderately convex, brown, pale at tip, minutely wrinkled and obsoletely punctate.
Clavus and corium covered with close shallow punctures, subcostal area with a broad and
long pale almost hyaline stripe; membrane dusky, with a large whitish spot near the base,
the veins dark; wings dusky. Venter purplish black, opaque, pale on the middle, fulvous
on the last segment, all the incisures margined with white, and with a series of pale dots
on the lateral submargin, pubescence hardly distict.

Length to end of abdomen6mm. Totipofmembrane7mm. Widthof pronotum 2mm.

HEMIPTERA OF COLORADO. aD

Only one specimen, a female, was taken in Colorado. It is peculiar from the conical and
compressed form of the clypeus, and the genital slit for the ovipositor extends back in a
pale line to next base of venter. The male is a great desideratum.”

Estes Park, July 15th, on Pinus (Gillette).

Megacoelum fasciatum Uhl.

Near Manitou, August 13th (Uhler, 5). Manitou, July 16th (Packard—see
Uhler, 5).

Lysus annexus Uhl.

Colorado (Uhler, 1’. Foot-hills (Carpenter—see Uhler, 6). Pueblo, July
(*Vilkin—see Uhier, 7). Several var. in Beaver Brook Gulch, Pale varieties
common near Denver on Euphorbia marginata (Uhler, 5). Denver, July 28th;
Idaho Springs, July 6th°(Packard—see Uhler, 5). Custer County, midalpine
(Cockerell, 10).

Gore Pass, July 29th; Montrose, June 24th (Gillette). La
Veta, July 4th (EK. A. Schwarz).
Lygus diffusus Uhl.

Custer County, high alpine (Cockerell, 10,
Lysus guttatipes Uhler n.sp.

“Form of L. prasinus Reut., but having a narrower head, the femora on the sides and
the tibial spines at base marked with black dots. Ovate, convex, dull pale green, in some
specimens obsoletely tinged with brownish around the base of membrane, obsoletely
scabrous and effaced punctate, set with silky stiff pubescence which is mixed with dark
bristles on the sides of the pronotum. Head polished, strongly convex; eyes large, brown;
antennae green, stout, the basal joint thick, a little brownish, somewhat longer than from
the eye to tip of tylus, second joint growing gradually thicker towards the tip, much
shorter than the base of pronotum; rostrum greenish, broadly black at tip, reaching upon
the middle coxae. Pronotum transverse, convex, remotely pubescent. unevenly and
finely punctate, lateral margins acute, slightly curved, the pleural piece beneath them
short, sunken, having a few punctures on the middle. Legs green, the femora stout,
marked with round, black spots; tibial spines black, and with a black dot at the base of
each, apex of tibiae and of tarsi also black. Scutellum moderately convex, a little
wrinkled. Corium and clavus obsoletely rugose-puntate; cuneus with remote dusky
pubescence, the tip sometimes minutely fuscous; membrane moderately long, pale
greenish, with paler veins. Abdomen brighter green, minutely pubescent, the genital
pieces blackish,

Length to end of abdomen, male 3.25, female 3.5mm; totipofmembrane4mm. Width
of prouotum1i5mm. Four specimens have been sent to me by Prof. Snow for examination.
They were collected at Manitou, in August, by Mr. E. 8. Tucker.”

Lysgus invitus Say.
Steamboat Springs, July 16th (Baker).
Lysus plagiatus Ubler n. sp.

“Robust, dull fulvo-griseus, or griseo-’estaceous with fuscous obs2ure spots, opaque,
pubescent. Head olivaceo-testaceous, polished, vertex incised on the middle, indented
next the occipital carina, eyes brown, placed perpendicular, front convex, a little obsolete
punctate, indistinctly marked with about four brown uneven striprs, cheeks and tylus
brown below; rostrum flavo-testaceous, piceous at tip, reaching to the middle coxae,
antennae short and moderately stout, the basal joint dark brown, the second joint a
little lounger than the pronotum, darker and a little thicker towards the tip, the third

36 PRELIMINARY LIST

and fourth dusky, more slender than the second and together about equal toitin le.agth.
Pronotum broad, very moderately convex, bald, with coarse uneven punctures separated
by wrinkled spaces in somewhat transverse lines, color dull, sometimes marked with a
pair of black spots on the middle, a larger black spot in each humeral angle, and some
faint, short stripes of brown on the disk, the lateral margins reflexed, whitish, a little
curved, anterior angles well rounded and converging towards the elevated, ivory white
collum, posterior margin pale, a little sinuated; pleural flap coarsely punctate, blackish
on the middle; sternum and coxae pale greenish-testaceous. Leg; testaceous, anterior
coxae and sternum black, the usual two brown bands near tip of femora, the tibiae dark
at tip and with black spines, tip of tarsi and nails black. Scutellum with an oblong pale
spot each side near base, and the apex also pale. Corium finely pubescent, flecked with
pale dots, more finely and closely punctate than the pronotum, costa dull testaceous,
piceous at tip, inner angle with a pale spoton each wing-cover, tip of the broad cuneus
with a dar< brown spot; membrane brown at the outer end of the areole. Venter pube-
scent, greenish testaceous, with a dark stripe each side, and some pale dots on the con-
nexivum.

Length to end of venter 4.5-5 mm. Totipof membrane 5.5-6mm. Width of pronotum
2-2.5mm. One specimen, a male, is in the collection from Colorado, others were sent to
me from Indiana, Nebraska, Washington, Mackenzie River region, province of Quebec,
and Maine. Itis allied to L. pratensis Linn., but it differs in form, length of antennae,
and markings.”

Manitou, April 17th (Gillette).

Lysus pratensis Linn.

Colorado (Uhler, 1). Above timber line (Carpenter—see Uhler, 6, and
Packard, 2). Common in cultivated districts (Uhler—see Packard, 2). Colo-
rado, common (Packard, 2). During August, around Denver, near Golden,
near Colorado Springs, and near Cannon City (Uhler, 5). Golden, July 3d;
Blackhawk, July 2d (Packard—see Uhler, 5). West Cliff, Custer County, July
27th; also high-alpine (Cockerell, 10).

Fort Collins and adjoining foot-hills April 6th to Septem-
ber 30th, very common on alfalfa, sugar beets, and many
wild and cultivated plants (Baker and Gillette). Steamboat
Springs, July 26th; Trinidad, May 14th; Georgetown, July
19th; Manitou, September 29th (Gillette). Aspen (W. W.
Willard). Manitou Park and Colorado Springs (Tucker).
La Veta, July 4th (E. A. Schwarz).

Lygus sallei Sign.

Steamboat Springs, July 15th (Baker). Manitou, July
(Snow).

Neoborops Uhler n. gen.

“Aspect of Neoborus, but with the eyes vertical, more prominent, the vertex and base
of front narrower, the lateral margins of pronotum not decurved, and the anterior border
of prosternum collum-like, with the inner borders of the pleural flaps carried far inward
and leaving only a narrow space for the posternum.”

Neoborops vigilax Uhler n. sp.

“Bright fulvous or fulvo-testaceous, oblong-oval, scabrous and obsoletely, minutely
punctate on most of the upper surface. Head nearly vertical, narrow cetween the very
prominent brown eyes, with a broad yellow line on the middle which is bounded each side

HEMIPTERA OF COLORADO. ae

by aslightly puxctate, impressedline; the fronta little convex, widening beneath; tylus
long, of nearly uniform width throughout, curving a little at tip: rostrum reaching
to behind middle coxae, wax yellow: antennae of medium length, pale wax yellow, the
basal joint moderately thick, longer than the head, the second joint black at tip, taper-
ing slender towards the base, about as long as the clavus, the third joint abruptly more
slender, about half the lengthof the second, also black at tip, the fourth at out equally
slender, very short, black from beyond the base to the tip. Pronotum transverse, bluutly
subtriangular, moderately convex, but steeply sloping anteriorly, punctate, polished,
more or less distinctly marked with about four red stripes composed of spots; the humerj
lobately rounded, marked with a black dot, the lateral margins callous, not reflexed, the
posterior margin pale and slenderly reflexed; the collum prominent, deeply cut, abruptly
narrower than the front of the prothorax; pleural flaps deep, subtriangular, spotted with
red, white below, slightly wrinkled, and with afew punctures. Legs long, yellowish-tes-
taceous, shuded with red, and with a broad brown band on the knee of middle and pos-
terior femora and tibiae in common, tips of tarsi piceous. Scutellum yellow, marked with
brown or rufous, or with a round spot on middle and a triangular one at base. Heme-
lytra testaceous, translucent, obsoletely punctate and wrinkled, marked with irregular,
remote spots of brown or red, at base and apex of corium and with vestiges between these
points, veins and sutures whitish, cuneus and membrane also with clouded brownish
spots. Abdomen minute!y pubescent, sprinkled with red, somewhat in stripes, leaving a
linear space of yellow between, the outer submargin sometimes marked with brown spots
in the suture, apical border of the last ventral ring yellow, the genital segment also yel-
low.

Length to end of abdomen4mm. To tip of membrane 5.5mm. Width of pronotum
2mm. I have examined two specimens from Colorado, and six of both sexes from Ari-
zona. Itseems to be common in Arizona and most of the syecimens thus far seen have
not been maturely colored.”

Steamboat Springs, July 16th on willow (Baker).
Neoborus rubeculus Uhler ni. sp.

“Oblong-oval, minutely pubescent, mostly yellowish or greenish-testaceous, marked
with chestnut brown. Head normal, bald, polished grooved, between the eyes, the face
nearly ver ical, testaceous yellow, with a broad, curved, brown line on either side; tylus
long, narrow, with a brown line on the middle; the cheeks yellow, smooth, the suture and
amark next the antennae rufous; rostrum rufo-testaceous, slender, reaching behind the
middle coxae, piceous at base and tip; antennae stout, the basal joint much longer than
the head, dark brown, the second joint about 4s long as the pronotum and scutellum
united, a little thickening towards the tip, fulvous, dark at base and tip, the third and
fourth much more siender, filiform, dark brown, conspicuously hairy, the third about
one-half as long us the second, the fourth stil! shorter. Pronotum longer than normal, a
little convex, strongly sinuated on the sides, the anterior widih reaching to the middle of
the eyes, with a sharply «levated ivory-white collum which correspunds to the space be-
tween the eyes; the surface transversely wrinkled, coarsely soand a little punctate on the
posterior lobe, the region of the callosities dark, tumidly prominent, with the ex erior
submargin widely flattened, yellow, and the outer border strongly reflexed, punctate, the
middle line yellow, each side, posteriorly, brown on a rufous ground, the posterior edge
yellow; pleural flaps deep, triangular, brown and punctate above, yellow below: the
sternum and pleural pieces clear yellow. The coxae and ‘egs yellowish or greenish white,
a little reddish on the posterior femora, the tarsi black at tip. Scutellum brown, feebly
convex, pu descent, wrinkled, with a few remote punctures, the middle line and base yel-
low. Clavus coarsely wrinkled, dusky, paler exterior:y, pubescent, corium, closely
wrinkled and punctate, testaceous for two-thirds of its length, red at the costul tip and
angularly dark brown on the apical third, the inner border with a yellow line next base
of cuneus, the cuneus yellow, margined exteriorly with red: the membrane dusky, paler
at base exteriorly, the veins yellow, with the areole smoke brown. Exterior margin of
venter with a line of brown spots which continue along the pleura to the stripe on the
pleural flap; middle of venter yellowish-testaceous, the genital segment more or less
marked with red and brown.

Length to end of abdomen 4.5 mm. To tip of membrane6mm. Width of pronotum
2mm. This insect is quite variable in colors. The red is sometimes replaced by olive-

38 PRELIMINARY LIST

green or fuscous, and there is sometimes a broad black stripe along the whole submargii
beneath. It inhabits Colorado, and is common in Northern Illinois, in June; itis also
found in Michigan.”’

Steamboat Springs, July 16th on willow (Baker).

Poeciloscytus basalis Reut.

Sweeping weeds at Colorado Springs, near Fountain Creek, August 16th
(Uhler, 5). Colorado (Uhler, 8).

Manitou Park (Snow). Colorado Springs (Tucker.)
Poeciloscytus diffusus Uhl.

North Park, July 20th; Estes Park, July 10th (Gillette).
Steamboat Springs, July 12th to 26th, on Solidago and other
low herbs (Baker and Gillette).

Poeciloscytus intermedius Uhl.

Steamboat Springs, July 18th to 26th (Baker and Gillette).
Estes Park, July 12th (Gillette).

Poeciloscytus unifasciatus Fabr.

Smith’s Park, Custer County, midalpine, August 6th (Cockerell, 10).

Steamboat Springs, July 12th(Baker) Veta Pass, July Ist
(EK. A. Schwarz).

Poecilocapsus goniphorus Say.

Fort Collins, June 23d to August 25th (Gillette).
Systratiotus americanus Reut.

Colorado (Gillette—see Osborn, 1).

Steamboat Springs. July 15th to 26th (Baker and Gillette).
Systratiotus venaticus Uhl.

Colorado (Uhler, 1 and 6).

Garland, June 19th (EK. A. Schwarz).

Camptobrochis grandis Uhl.

Colorado (Snow—see VanDuzee, 5)
Camptobrochis nebulosus Uhl.

Colorado (Uhler, 6). Colorado (Gillette—see Osborn, 1).

Fort Collins, June 9th on alfalfa, May 3d and September
26th on box-elder; Big Narrows of Poudre River, Larimer
County, July 9th on Bigelovia (Baker). Foot-hills five
miles west of Fort Collins, April 10th to August Ist (Baker

HEMIPTERA OF COLORADO. 39

and Gillette). Manitou, September 29th on Salix; Glen-
wood Springs, August 24th (Gillette).
Camptobrochis robustus Uhler n. sp.

“Short and thick, dusky testaceous, strongly murked with fuscous and black,
coarsely, andin part densely punctate. Head almost vertical, vertex short, transversely
grooved, bordered with a broken fulvous line in front, the occipital carina high, fitting
into the collum, ivory yellow; front bordered with pale dull yellow, polished, remotely
minutely obsolete-punctate and wrinkled, closely freckled with black, the inner border
of the eyes also pale dull yellow, the lower part of tylus and the bucculae yellow; ros-
trum pale at base, piceous at tip, reaching to the middle coxae; antennae long and
slender, as long as the corium and cuneus united, mostly pale fuscous, the basal joint
dull pale fulvous, obscured with fuscous, the second very long, a little stouter than the
third and fourth, slightly thicker towards the tip, the third and fourth together a little
onger than the second, the fourth much the shortest. Pronotum convex, coarsely,
deeply, irregularly punctate in somewhat transverse wavy lines, with about four obscure
stripes which widen posteriorly, the lateral margins a little curved, the humeral angles
broadly rounded, the posterior margin feebly curved and sinuated, and the anterior mar-
gin contracted and bordered with a somewhat pale cellum, the callosities tumid, black,
polished. Scutellum dark brown, closely and roughly wrinkled and unevenly punctate,
eonvex, Olive-fulvous at tip. Legs pale olive-brownish, the femora piceous, rough at a
few points, having one or more yellowish dots near the tip, the tibiae spotted with dark
brown, closely pale pubesvent, with the spines, tip of tarsi and nails dark piceous.
Clavus coarsely punctate and wrinkled. dark olivaceo-fuscous, corium a little paler,
smoother, more finely punctate, almost bald, with the surface near the costa translucent,
punctate with brown, the costal border dark brown, ending in a darker spot before the
ecuneus, the embolium broad and piceous black, the cuneus dark brown, bordered al}
around with pale testaceous; the membrane whitish, a little stained with brown at base
and tip, and the veins mostly brown. Abdomen olivaceo-testaceous, finely pubescent,
dusky at tip, with a line of black marks on the outer submargin, and a series of yellow
dots on the connexivum.

Length to end of abdomenidmm. Totipof membrane6mm. Width of pronotum 2.5
mm. Three or four specimens have been brought to my notice. One specimen from
Colorado is chiefly dark fulvous, others were mostly chestnut brown or nearly black.
The pale stripe with black arrest at the end of costal area will go far tewards quickly
distinguishing this species.”

North Park, July 20th (Gillette), and July 10th on Arte-
misia tridentata (Baker). Leadville, August 23d (Gillette).
Cameron Pass, at 12,000 feet. on Salix (Baker).

Orthops scutellatus Uhler.

From bushes in Clear Creek Canon, August 7th. Not rare (Uhler, 5).
Colorado (Uhler, 8).

Steamboat Springs, July 15th to 26th (Baker and Gillette).
North Park, July 20th; Dolores, June 1Sth (Gillette).
Thyrillus brachycerus Uhl.

Colorado (Uhler, 6). Near West Cliff, Custer County, end of July (Cock-
erell, 10).

Estes Park, July 10th (Gillette).

Thyrillus pacificus Uhl.
Weld County (Uhler, 1).

40 PRELIMINARY LIST

Pamerocoris anthocoroides Uhl.
Near Denver (B. H. Smith—see Uhler, 5).
Monalocoris filicis L.

Swept from a small fern which grows in damp places among the rocks
high up in the mountains near Beaver Brook, adjoining Clear Creek Canon.
August 6th (Uhler, 5).

Eccritotarsus scabrosus Uhlern. sp.

“Compact, thick and short, somewhat resembling E. vestitus Dist.. a little pubescent,
the general color piceous-brown, with red head and legs. and nearly all of the upper
surface roughly, andcoarsely punctate. Head tumidly convex, with a callous ridge
against the inner border of the eyes, and this continued along the border of the occiput;
surface somewhat coarsely punctate, the front indented in the middle and grooved each
side, a little obscured with brown; tylus a little more prominent than the front, placed
almost vertical; the rostrum rufous, a little tinged with piceous; antennae blackish,
short, stout, the basal joint shorter than the head, contracted at base, the second longest,
growing thicker towards the tip, shorter than the pronotum, the third much more slen-
der, about one-half as long as the second. the fourth much shorter. Pronotum strongly
convex, a little longer than wide, steeply sloping towards the head; the anterior Jobe ab-
ruptly contracted, separated by a transverse and curved series of indented points;
surface tinged with rufous, coarsely, roughly punctate; lateral margins sinuated and
steeply curved down; the posterior margin a little curved, feebly sinuated, bent down;
pleural flaps very coarsely punctate. Legs stout, rufous, covered with pale pubescence.
Scutellum small, tumid at tip, punctate basally. Hemelytra broad, thick, coarsely and
roughly punctate, the cuneus long, depressed, curved on both sides, the membrane fuli-
ginous, with a pale are on the middle, the areoles rough and of thick texture. Sternum
and venter somewhat rufous, the latter obsoletely punctate, highly polished, minutely
pubescent.

Length to end of abdomen 2.5mm. Width of pronotum 1.25mm. Described from one
specimen, a ma'e, from Colorado ”’

Estes Park, July 10th (Gillette).
Pycnoderes insignis Reut.

Steamboat Springs, July 26th (Gillette).
Unacora chloris Uhl.

On the flowers of a slender pale composite, growing in Manitou Park,
August 14th. Also near Colorado Springs, in the low grounds near Fountain
Creek (Uhler, 5). West Cliff, Custer County, sweeping herbage, July 25th
(Cockerell, 10).

Estes Park, July 10th; Dolores, June 18th; Steamboat
Springs, July 26th (Gillette).
IInacora divisa FReut.

Steamboat Springs, July 14th and 26th (Gillette and
Baker).

DIlnacora stallii Reut.

Steamboat Springs. July 16th (Baker).

HEMIPTERA OF COLORADO. 4]

Ilnacora viridis Ubhler n. sp.

: “Bright grass green, narrow, not highly polished. Head flat as usual, set with black
stiff pubescence, with the vertex more or less broadly impressed before the sharp occipi-
tal carina; front prominently convex, wider than loug, grooved each side near the eyes;
tylus short, inferior, placed much below the lower end of the eyes: rostrum dull green,
broad and compressed at base with the basal joint protracted upon the anterior coxae,
the tip black, reaching to the middle coxae; antennae dusky greenish, long, growing
slender towards the tip, the basal joint thick, black at base and apex, much longer than
the head, the second joint very long, black at base and tip, about equal to the corium in
length, the third darker, more slender, less than half as long as the second, the fourth
about equally slender, also dark, much shorter than the third. Pronotum trapeziform,
almost flat, very gently sloping, set with erect blackish pubescence anteriorly and on the
sides; the anterior margin reaching to about the middle of the eyes, with the collum
raised in the middle; the callosities large, transverse, separated by a deep excavation,
the anterior angles broadly rounded; the lateral margins oblique, reflexed and sinuated
posteriorly; the humeral ungles a little protracted, forming lobes a little recurved with
the tip cut obliquely, surface wrinkled, hardly punctate. Scutellum feebly convex,
acute at tip, sometimes a little whiiish at base. Legs long, the femora green, somewhat
spotted with white; the tibiae dull yellowish, armed with black spines; tip of tarsi
piceous. Hemelytra long and ample with the costal border very slightly curved; surface
of clavus and corium tat, obsoletely scabrous; membrane smoke brown. Coxae and
base of venter whitish.

Length to end of abdomen 4.5mm. Totipof membrane 5.5 mm. Width of pronotum
1.33 mm. Ihave examined four specimens of both sexes, from Colorado. They approach
I. (Sthenarops) malina Uhler, but differ in the absence of the indented black dots on the
pronotum, and of the black markings of face, in less convex front, and in the color of the
antennae and scutellum. The form is somewhat variable, as is also the length of the
hemelytra.”

Steamboat Springs, July 14th (Baker).
Sthenarus rubidus Uhler n. sp.

“Ovate, thick set, dark piceous. polished, covered above with silky yellow, caducous
scales and fine pubescence. Head broad, feebly convex, a little fulvo-piceous around the
borders and at base and tip, vertex with a feebly impressed line on the middle, occipital
posterior ridge distinct; face polished, covered with yellowish prostrate scales; cheeks
and inner underside of eyes pale yellowish; rostrum piceous, paler rufous at base, reach-
ing to the posterior coxae; antennae, basal joint piceous, thick, scarcely as long as the
width of the eye, second joint fulvous or piceous, thick, about as long as the pronotum,
the third and fourth abruptly more slender, pale piceous, together scarcely longer than
the second. Pronotum convex on the middle and strongly curving down anteriorly, dark
piceous, or black, polished, covered with yellow scales aud fine pubescence, nearly twice
as wide as long, with the callous humeri subacute, the posterior margin sinuated, with the
lateral margins curving down; thesurface minutely wrinkled, and the pleural flaps trian-
gular, sunken, densely covered with scales and the margins raisedin relief. Anterior coxae
and a spot at tip of mesopleural segment whitish; femora pale rufous, piceous on the
middle, tibiae paler, the spines black and placed on black dots, tip of the tibiae and of
the tarsi black. Scutellum unevenly wrinkled, piceous, rufous towards the tip, invested
with the yellow scales. Hemelytra dark brown, fulvous ut base, on the suture of clavus
and on the embolium. upex of the costal border and the cuneus red; surface roughly,
shallow punctate, covered with yellow scales and finely pubescent; membrane fuliginous,
white along the border and around the looped vein. Venter fulvous brown, minutely
pubescent and spread with bronze-yellow scales.

Length to tip of abdomen 2.75-3 mm. To tip of membrane 8-3.25 mm. Width of
pronotum 1.25 mm. One specimen from Colorado Springs, tuken in August by Mr. E.5.
Tucker, is darker and less rufous than the others that I have examined; it has also more
white at the base of membrane. Other specimens have been collected in Illinois by Mr.
Bolter and Mr. Stromkerg; at Lancaster, N. Y. in August by Mr. VanDuzee; in C..La by
Dr. Gundlach, in San Domingo by myself, as alsoin Texas and Florida. A form appearing
to be a variety of this species is also found in Mexico.”

42 PRELIMINARY LIST

Tinicephalus simplex Uhl.

Colorado (Uhler 1). Foot-hills, July (Carpenter—see Uhler. 6). Mount-
ains west of Denver, July and August (Uhler, 5).

Garland, June 30th (E. A. Schwarz).
Pilophorus gracilis Uhler n. sp.

“Narrower than usual, dark piceous, or nearly black, the pronotum longer than wide,
and the corium distended and almost hyaline at the tip. Head depressed subconical, the
vertex transversely depressed, with a central carina running back to the thick carina
bounding the occiput behind; face convex, piceous, polished, becoming fulvous below;
tylus narrow, pale rufo-fulvous like the cheeks; rostrum dark honey-yellow, darker at
tip, reaching upon the middle coxae: antennae moderately long and slender, the basal
joint short, dull fulvous, the second a little longer than the pronotum, of the same color,
but darker on the gradually thickening tip, the apical joints more slender, but not ab-
ruptly decreasing, the two united scarcely longer than the second. Pronotum highly
polished, semi-cylindric, with the sides a little sinuated, almost of equal width through-
out, dark piceous, minutely wrinkled on the disk and behind, with the humeral angles
acute and the anterior ones rounded off. Scutellum depressed behind the middle, black,
and minutely scabrous. Hemelytra long, dark brown, sometimes almost black, minutely
pubescent, velvety, not banded, distinctly sinuated on the sides, the membrane a little
dusky, with a dark brown spot near the base, the inner border of apex of corium witha
curved callous line. Legs pale dull piceous, paler on the tibiae. Abdomen black, highly
polished.

Length to end of abdomen #.5 mm. Width of pronotum 1.25mm. One specimen, a fe-
male, lacking the tarsal joints and two apical joints of the antennae, was sent to me from
Colorado. It liveson Pinus inops in summer, June to September, in Maryland, Virginia,
New Jersey: and is also found in Massachusetts. Maturely colored specimens do not
have the reddish clypeus and cheeks observed in the specimens from Colorado.”

Colorado Springs, August 3d (Gillette).
Globiceps angustata Uhler n. sp.

“Black, highly polished, delicate, slender. Head transverse above, convex, having a
few remote punctures, the eyes large an | prominent, much elevated above the line of the
head, the face nearly vertical, with the front a little convexly prominent, the tylus mod-
erately narrow; rostrum very stout at base, with the basal joint long, stout and blAckish-
piceous, the middle testaceous and the tip piceous; antennae long, slender, dull black,
the basal joint longer than the head, testaceous at base. the second barely thicker at tip,
nearly as long as the costa and cuneus united, the third a littie more slender, about half
as long as the second, the fourth broken off. Pronotum sub-vampanulate, highly polished,
about twice as long as the eye; the collum contracted, narrow; the callositites very
large, tumid, with a groove between, which is partly occupied by a blunt carina that runs
back to posterior lobe; posterior lobe wide, convex, transversely wrinkled, with the
anterior slope high, the sides steep, oblique, and gently sinuated, the humeri a little
turned up and acute. Scutellum high, almost flat above, with steeply sloping sides, acute
at tip. Legs pale fulvous, whitish at base, the ends of tarsi piceous. Clavus dusky,
corium whitish-yellow at base, dusky on the remaining two-thirds; the cuneus pale
yellowish, dusky at tip; membrane long and wide, pale fuliginous, white at the extreme
base, with the looped vein dark brown. Abdomen black, highly polished.

Length to end of abdomen 2.75 mm. To tip of membrane 4 mm. Width of pronotum
‘87mm. Described from a single male specimen from Colorado. It is closely related to, if
not the same species as one which I found in the Province of Qubec. The female is
earnestly desired for study, to complete the description of this species. This insect might

readily be mistaken for one of the small Chalcididae which have black bodies and yellow
legs.”

Steamboat Springs, July 12th (Baker).

HEMIPTERA OF COLORADO. 43

Cyriorrhinus marginatus Uhlern sp.

“Long and narrow, black, moderately flat abeve, pale pubescent, bordered with green
on the abdomen and corium. Head black, highly polished, much wider than the front of
pronotum, indented and grooved in front of the carina of vertex, the carina sharp and
high; face almost vertical, the tylus prominent; eyes large, brown, prominent, placed a
little obliquely, the border of their inner side pale yellowish; tylus, bucculae, and
rostrum greenish-testaceous, the latter reaching upon the middle coxae, blackish at tip;
antennae moderately stout, as long as the head, pronotum and corium united, the basal
joint much longer than the head and stouter than the second, the second joint as long as
the clavus, the third more slender and about half as long as the second, the fourth still
more slender and much shorter. Pronotum shining black, sometimes with a yellow line,
the sides gradually contracting, rather strongly sinuated, the callosities large and
prominent, the surface transversely wrinkled, convex posteriorly, longitudinally
impressed near the humeri, the margin sometimes broadly yellow. Legs pale greenish,
the tibiae dark at tip, the anterior pair with stout spines, tarsi piceous at tip. Scutellum
black, moderately convex, transversely wrinkled, acute and pale at tip. Clavus dull
black minutely pubescent, corium dull black as far as next to the cuneus, also pubescent,
broadly margined with greenish yellow, the cuneus mostly yellowish, the surface of the
hemelytra granulate throughout; membrane long, smoke brown, with the veins pale
yellow at tip. Middle line of the sternum and disk of venter pale greenish-yellow, finely
pubescent.

Length to tip of abdomen 4mm _ Width of pronotum 1.25 mm. Only males of this
insect have been brought to my notice. Should the female prove to be of the inflated
type, with the spherical head, this insect will have to be transferred to the genus Globi-
eceps Fiebr. This species is common in the province of Quebec, and it occurs as far north
as Great Slave Lake, in British America.”’

Steamboat Springs, July 16th, on willow (Baker).
Diaphnidia Uhler n. gen.

“Near Actorhinus Fab., elongate subelliptical, tender, opaque. Head gently sloping and
curved anteriorly, the face almost vertical, a little longer than the width between the eyes;
tylus projecting beyond the line of the face, curving beneath, the upper bounding line placed
nearly on the level of the lower end of eyes; eyes prominent, sub-reniform, nearly vertical. with
somewhat swollen neck behind their line; occiput with a carina sometimes arched in the
middle, and with the surface flattened in front of it, cheeks diagonal, acutely narrowed at tip;
gula almost horizontal, swollen at base; bucculae narrow and short, followed behind by a
waved surface, basal joint of rostrum much shorter than the under side of head; antennae
longer than the head, pronotum and corium united. Legs long. Pronotum trapeziform, with
the lateral margins moderately oblique, the anterior margin forming a narrow, flat, sinuated
collum; the transverse impressed line behind the callosities shallow. Hemelytra long and
wide, contractingly curving towards the base, semi-diaphanous, with a sharoly reflexed costal
margin; cuneus large and long, with the outer border reflexed. Abdomen very narrow.”

Diaphnidia debilis \"hlern sp.

‘Delicate green, or greenish-white, indistinctly and very minutely pubescent around the
sides of head, pronotum and beneath. Head a little grooved on the middle line, and a little
callous each side between the eyes; antennae yellowish, the basal joint much longer than the
head, thicker than the second joint and contracted at base, the second of uniform thick-
ness throughout, as long as the outer margin of the corium; rostrum yellowish, black at tip,
reaching between the anterior coxae. Pronotum wider than long, almost flat on the disk,
gently sloping, with the surface a little wrinkled, the lateral margins a little sinuated in front
of the prominent humeri; the anterior submargin occupied by the transverse ridge of the almost
contiguous callosities. Legs pale green, more yellow upon the tibiae, upon which the spines are
dark, and the base and apex of the tarsi piceous. Clavus, corium and cuneus minutely,
remotely and obsoletely scabrous. Abdomen silvery greenish.

Length to end of abdomen 333 mm. To tip of membrane 5.5 mm. Width of pronotum
1.4mm. Two males from Colorado are the only specimens | have seen.”’

Steamboat Springs, July 14th (Baker). Later we also

44 PRELIMINARY LIST

received specimens (which were afterwards determined by
Uhler) from Snow, taken by Tucker at Colorado Springs in
July.

Diaphnidia pellucida Uhiler n. sp.

“Blongate, very pale green, delicate, with minute whitish pubescence on the pronotum and
hemelytra. Head short andsmalj, with the eyes nearly globose, very prominent, very pale brown-
ish; middle of vertex incised, the incision running back to an impressed line which extends across
to the base of the eyes; base of head thick, curvedly contracting to base of occiput, surface next
to inner line of eyes incised; front vertical, forming a rounded lobe as far as to below the
middle of the eyes; tylus short, tapering and curving beneath, a very little more prominent than
the front; rostrum pale green, slender, reaching behind the posterior coxae. Antennae long and
slender, pale green or yellowish, the basal joint longer than the head, sometimes a little dusky
at tip, the second joint cylindrical throughout, a little longer than the pronotum and seutellum
united, third joint a little more slender and about two-thirds the length of the second, the
fourth still more slender, very short, sometimes a little dusky. Pronotum nearly trapeziform, a
little wider than long, gently sloping anteriorly; the lateral margins sinuated directiy before the
prominent humeri; surface a little uneven, the callosities distinct and with an indented space
between them, the impressed line behind them deep and clearly defined, arrested by the thick
carinate lateral edge which stops against the end of the callosities; the anterior angles rounded
off, the anterior edge a little sinuated, callous, extending to about the middle of the eyes;
posterior margin a little yellowish, hardly sinuated. Clavus and corium minutely scabrous,
almost transparent, very ample as compared with the abdomen; cuneus long, bordered exteri-
orly with a thick green line; membrane very thin, whitish green, the vein deeper green. Legs
greenish, the tibiae sometimes yellowish, dusky at tip; apex of the tarsi and the nails piceous.

“Length to end of abdomen 2.25-2.5 mm. To tip of membrane 3.5 mm. Width of pronotum
1-1.25 mm. Numerous specimens have been brought to my notice. The first of these I found
near Montmorency, in the province of Quebec, others were obtained near Washingtun, D. C., by
my friend Otto Heidemann, and a male specimen has been sent from Colorado. The specimen
from Colorado has the callosities near together on their inner ends.”

Fort Collins, September 26th on box-elder (Gillette).
Dacota hesperia Uhl.
Colorado (Uhler 1 and 6).

Diommatus angulatus Unler n. sp.

“Long, almost parallel-sided, nearly flat above, black or dark smoke-brown, minutely
pubescent, rather broader than D. congrex Uhl., with stouter and longer antennae. Head
moderately convex, highly polished between and before the eyes, piceous anteriorly and upon
the tylus, the latter becoming paler below; the occipital carina pale piceous, bounded in front by
an arcuated, punctate impression; eyes large, prominent, dark brown; rostrum wax-yellow,
piceous at tip, reaching to behind the middle coxae; antennae long and stout, longer and
thicker in the male, black or dark brown, the basal joint a little longer than the head in the
female, much longer in the male, the second joint a little thinner than the first, about as long
as the corium, the third still more slender, about two-thirds the length of the second, the fourth
thinner and much shorter. Pronotum a little wider than long, very slightly convex, with the
lateral margin oblique; the surface finely pubescent, very gently sloping, the anterior lobe
distinctly defined, with the callosities large, prominent, black; the collum indistinct; posterior
lobe large, obsoletely wrinkled and with a few faint punctures, the posterior marein feebly
sinuated, with the humeral angles a little prominent and broadly rounded; the pleural flaps
moderately short, grooved vertically. Scutellum small, black, convex, acute. Coxae and legs
yellowish, a little dusky towards the knees, the tarsi more or less piceous. The clavus pale
yellow; corium with a large, triangular, black spot on each wing-cover which covers most of
the surface to next the base of cuneus, the cuneus yellowish, but dusky at tip. Abdomen black,
polished, the base, disk, and a part of the apex of venter yellowish.

Length to end of abdomen 3-3.25 mm. To tip of wing-covers 4.5mm. Width of pronotum
1.25 mm.”

HEMIPTERA OF COLORADO Ad

Fort Collins, June 24th; Montrose, June 24th (Gillette).

Diommatus congrex Ubl.
Steamboat Springs, July 16th, on willow (Baker).

Tuponia subnitida Ubler n. sp.

“Whitish-green, long oval, minutely pubescent, with the costal margin of the hemelytra very
feebly curved. Head broad and very convex, pressed back upon the thorax, smooth, not
punctate; front nearly vertical, highly polished; the tylus short, compressed, but little promi-
nent, curved beneath; the rostrum pale fulvous, reaching over the middle coxae, with the tip
piceous ; antennae long and slender, the basal joint short, blackish, second joint green, dark at
base and tip, not much thicker than the following joint, about as long as from the front of the
eye to the base of pronetum, the third a little shorter and slightly more slender, the fourth
scarcely more than one-third the length of the third, equally slender. Pronotum transverse,
uneven, steep, very slightly convex, smooth, impunctate; with the callosities forming an arc,
preceded by a semicircular area touching the front margin; the lateral margins very oblique,
sharp-edged and deflexed; the posterior margin sinuated at the base of the scutellum; the
the humeral angles broad and rounded. Scutellum very moderately convex, the base uncovered,
the disk a little wrinkled and the tip acute. Legs greenish-white, the knees, tibial spines, dots
at intervals, and the tips of tarsi black. Corium and clavus greenish-white, very minutely
scabrous, and remotely effaced-punctate; membrane a little dusky behind the middle to the tip.
Abdomen pale green, minutely white pubescent.

Length to end of abdomen 2.5mm. To tip of membrane 3mm, Width of pronotum 1.12 mm.
Described from two specimens from Colorado.”

Steamboat Springs, July 12th (Baker).
Stiphrosoma atrata Uhl.

Fort Collins, July 14th on alfalfa; Steamboat Springs,
July 12th on Carex and Artemisia tridentata (Baker).
Stiphrosoma croceipes Uhl.

Big Narrows of Poudre river, Larimer County, July 9th on
Bigelovia (Baker).

Stiphrosoma robusta Ubler n. sp.

“Black, polished, shorter, thicker, and more compact than S. stygica Say, with a more
convex front, Head thick, convex from the vertex to end of upper cheek, the vertex with a low
carina behind against the pronotum, and marked with a shallow impression each side, front
highly polished impunctate, tylus narrowing a little towards the tip, deep seated in the cheeks ;
rostrum stout, a little piceous, reaching to the middle coxae; antennae slender, black, about as
long as the head, pronotum and scutellum united, the second joint nearly the same length as the
clavus, alittle thicker towards the tip, the third more slender, nearly two-thirds the length of
the second, the fourth about one-half the length of the second. Pronotum pubescent on the
sides, with the lateral margins oblique and more bent down than in S. stygica, the surface
scabrous, obsoletely punctate and transversely wrinkled, the callosities large, convex placed
diagonally, and separated by a wide depression, the disk convex posteriorly, with the humeri
acutely prqminent. Pleura a little wrinkled and with a few punctures. Scutellum short, scab- .
rous, a little punctate. Legs with stiff spines on both femora and tibiae. Clavus coarsely,
closely scabrous, and obsoletely punctate, the corium a little less coarsely scabrous, and
punctate, but with these features almost obliterated behind the middle, the sides and margins
pubescent; membrane moderately short, brown. Abdomen broad ovate, highly polished,
searcely punctate.

Length te end of abdomen 4mm. Width of pronotum 1.75 mm. Described from two |
specimens. both females, sent to me from Colorado. It inhabits also Texas and New Mexico.”

Steamboat Springs, July 26th (Gillette).

46 PRELIMINARY LIST

Stiphrosoma stygica Say.
West Cliff, Custer County, July 2‘th; Ula, July 30th (Cockerell, 10).

Steamboat Springs, July 26th (Gillette). Garland, June
30th (KE. A. Schwarz).

Halticus bractatus Say.
Manitou, July 24th; Colorado Springs, August 3d (Gillette).
Labopidea chloriza Uhl.

Howe’s Gulch, June 14th; North Park, July 20th (Gillette).
Steamboat Springs, July 18th and 26th (Baker and Gillette).
Aspen (W. W. Willard).

Labops hesperius Uhl.

Colorado (Uhler, 1). Foot-hills and mountains, July and September (Car-
penter—see Uhler, 6). From bushes growing among rocks on mountainside
near Gray’s Peak, August 6th (Uhler, 5).

Estes Park, July 12th (Gillette). Colorado, June, on pine
(Riley). Veta Pass, July lst( KH’ A. Schwarz).

Dicyphus californicus Stal.

North Park, July 20th; Montrose, June 24th; Colorado
Springs, August 38d; Manitou, September 29th on oak and
Salix (Gillette). Steamboat Springs, July 16th and 26th
(Baker and Gillette). Fort Collins. May 20th (Baker).

Dicyphus californicus Stal. var. agilis Uhl
Beaver Brook Gulch, August 7th (Uhler, 5).
Steamboat Springs, July 16th (Baker).

Dicyphus vestitus Uhler n. sp.

“Resembling D. famelicus Uhler, but much less elongated, smaller, having nearly linear
blackish antennae, with the apex of the second joint not thickened, and the colors darker,
with a black head and mostly black scutellum. Head subglobose, a little fringed with
pubescence, black, polished, witha pale spot on the vertex; rostrum dull testaceous, darker
at tip, reaching to the middle coxae; antennae moderately stout, blackish, with the first
joint pale towards the base, the second joint about as long as the pronotum, the third a
little shorter, and not much thinner than the second, the fourth short, acutely tapering.
Pronotum a little longer than wide, subecylindric anteriorly, with the sides sinuated
and reflexed; the collum narrow and white; the surface highly polished, dark brown,
with the middle broadly orange, which is replaced by dull white on the posterior
segment; the humeri are sometimes also pale orange; callosities distinct, prominent,
followed exteriorly by a swelling of the sides; posterior lobe wide, broadly sinuated
behind. Base of scutellum wide, uncovered, black, the scutellum proper black with
a yellow spot on each side at base. Coxae white, legs dull yellowish, with the tip
of tarsi piceous. Clavus pale, with the suture dusky, corium long and _ narrow,
obscure whitish, translucent, with a small brownish spot near the base, a dusky
streak on the middle, a line of same color on the suture, and a double lobed spot
of brown on the tip; cuneus white, bordered more or less with brown at tip; membrane

HEMIPTERA OF COLORADO 47

pale dusky, usually white in the areole and next the tip of the cuneus, also a little whitish
next the posterior border. Posterior part of propleura, and upper part of mesopleura
whitish. Abdomen fulvo-piceous, testaceous at tip.

Length to end of abomen 3-3.25 mm. To tip of membrane 3.75-4 mm. Width of base of
pronotum .75-1 mm. Described from two speciemens, including both sexes, sent to me
from Colorado. Mr. Coquillet also sent specimens from Los Angeles, and I have examined
other specimens from Dakota and northern New York. It is variable as to the amount
of yellow on the antennae, head and pronotum, and as to the brown clouding of
the hemelytra.”

Fort Collins, May 20th to June 4th (Baker and Gillette).
Montrose, June 24th (Gillette).

Orectoderus amoenus Uhl.
Near Denver (B. H. Smith—see Uhler, 5), Colo. (Gillette—see Osborn, 1).

Orectoderus longicollis Uhler n. sp.

“Piceous, opaque, elongate subfusiform, with the head broad subconical, as seen from
above, the base abruptly contracted into a short neck, the prothorax campanulate, and
the wing-covers widening behind the middle. Head very moderately convex above,
much longer than wide, polished, piceous, rather minutely scabrous than punctate, the
vertex moderately arched and obsoletely carinate in front, the neck shorter than the
corresponding contraction of the pronotum, front broadly depressed each side near the
middle of the eyes, upper cheeks placed superiorly; tylus narrow, moderately short, not
separated above by a distinct suture, tip tapering; rostrum set much below the depressed
gula, blackish-piceous, thick ut the very base, slender from thence to tip, reaching behind
the anterior coxae; eyes low, close-set against the side of the head; antennae of
medium length, the basal joint rufo-piceous, shorter than the head, the second rufo-
piceous, with the apical third moderately clavate, and dull blackish, as long as the middle
line of the corium, third abruptly more slender, almost setaceous, testaceous, scarcely
more than one-half the length of the second, the fourth much shorter, dusky, equally
slender. Pronotum dull black, minutely granulated and wrinkled, the two lobes of
nearly equal length, the callosities large, tumid, separated by a very shallow line, but
connected with the swelling of the sides, the line separating the lobes is placed behind
this swelling; posterior lobe wide at base, having sinuated sides, and with prominently
tubercular humeri; side flaps steep, rounded, coarsely wrinkled. Legs dull fulvo-piceous,
with the spines, tip of tibiae and apical portion of tarsi black. Scutellum smooth, dull
black, with sinuated sides, and a little tumid at apex. Clavus ivory white, coarsely
scabrous, with a piceous band at base which also runs diagonally upon the base of corium;
corium also ivory white, less coarsely scabrous, crossed behind the middle With an
obliquely bounded piceous spot which covers the entire end; cuneus piceous, with an
ivory yellow acute diagonal] spot on the basal portion; membrane dark brown at base,
gradually paler to almost white posteriorly. Abdomen black, bighly polisbed.

Length to end of abdomen 5 mm. Width of base of pronotum1.5mm. Only a single
specimen, a male, has thus far been brought to my notice. The 1emale is a desideratum
requiring the attention of collectors.”

Steamboat Springs, July 14th (Baker).
Orectoderus obliquus Uhl.

Hills, June to September (Carpenter—see Uhler, 6). Estes Park (Snow—see
VanDuzee, 5).

North Park, July 20th; Steamboat Springs, July 26th;
Montrose, June 24th (Gillette). In mountains south-west of
North Park, July 10th, on Artemisia tridentata (Baker).

48 PRELIMINARY LIST:

Coquillettia insignis Uhl.

Steamboat Springs, July 18th and 26th (Baker and
Gillette). Fort Collins, August 11th (Baker). North Park,
July 20th; Dolores, June 16th; Howe’s Gulch, June 14th
(Gillette).

Orthotylus viridicatus Uhler n. sp.

“Oblong-ovate, grass green, opaque, minutely pubescent, pale green beneath. Head slightly
convex, impunctate, broad between the eyes, the vertex transversely sulcate before the carina;
the eyes brownish, moderately prominent, well rounded, placed nearly vertical; front convex,
contracting below, the tylus narrow, prominent, separated above by a deep groove; rostrum
stout, reaching to the middle coxae, pale green at base, black on apical third; antennae stout,
the basal joint pale green, the second dusky, about equal to the clavus in length, the third and
fourth joints dusky, more slender than the second, filiform, and together not as long as that
joint. Pronotum wider than long, almost flat, with the lateral margins oblique, and the
anterior angles a very little rounded, the callosities large and tumid, separated by a deep
depression, the collam narrow, and confined to a narrow space of the anterior margin, the
transverse impressed line behind the callosities slender, but distinct on the outer margin,
behind it the margin of the posterior lobe is distinctly reflexed, the margin before this callous;
posterior margin nearly straight, with the humeral angles oblique and a little curved; the
pleural flap is deep and nearly triangular. Scutellum little longer than wide, feebly convex,
faintly carinate at tip. Clavus faintly scabrous, with a few obsolete punctures next the coarse
vein, corium minutely and obsoletely scabrous, the cuneus pale yellowish, smooth; membrane
black, with the veins pale yellowish. Abdomen short, minutely pubescent.

Length to end of abdomen3 mm, To tip of membrane 4mm. Width of pronotum 1.25 mm.
A few specimens of both sexes have been sent to me for examination. They have been mostly
shriveled from immaturity at time of collecting. Three specimens are in the collection from
Colorado. Others were obtained in the vicinity of Denver, and in New Mexico. The pale color
of head, thorax, sides of corium and cuneus, is owing to fading of color after death of the
insect.”

North Park, July 20th; Dolores, June 18th; Trinidad, May
14th; Estes Park, July 10th (Gillette). Steamboat Springs,
July 16th and 26th (Baker and Gillette).

Oncotylus sguttulatus Uhl.
Colorado Springs, August 3d (Gillette).
Oncotylus longipennis Uhler n. sp.

“Elongated, sub-elliptical, pale greenish testaceous, with a long cuneate, dusky stripe on the
middle of corium, polished, minutely pubescent. Head moderately convex, bald, highly
polished, subconical, sometimes with a semicircle of blackish spots between the eyes; front
yellowish, the tylus narrow, black; the vertex with a high carina in the male and a trazs-
verse groove before it; eyes brown, large, prominent, placed a little obliquely; bucculae pale;
rostrum slender, obscure testaceous, piceous at tip, reaching to the middle coxae; antennae
long, moderately slender, black, the basal joint longer than the head, the second as long as the
clavus, the third a little more slender, about two-thirds the length of the second, the fourth of
the same thickness, much less than half the length of the third. Pronotum subtrapezoidal,
polished, obsoletely wrinkled behind, feebly convex, the sides rapidly narrowing towards the
front, and a little sinuated, causing the humeral angles to appear prominent, callosities dis-
tinct, directly transverse, approximate, lateral edge decurved, the pleural flaps deep, subtri-
angular, black on the middle. Legs greenish-testaceous, the femora with a black band near tip,
and the knees, spines, tip of tibiae, and tarsi blackish. Prosternum each side, and pleura also,
with a-black stripe which continues back to the posterior segment; the venter each side with a
series of diagonal] black streaks. Secutellum feebly convex obsoletely wrinkled, usually black at

HEMIPTERA OF COLORADO 49

tip and in each basal angle. CJavus dusky, with the outer vein pale, corium a little granulated
translucent, with a dusky tapering spot on the middle, the veins pale, cuneus a little dusky on
the inner border; membrane very long, dusky, with the veins pale yellow.

Length to end of abdomen4mm. Totip of membrane6mm. Width of pronotum 1.33 mm.
Described from three specimens from Colorado. It is notable for the extreme length of the
wing-covers.”

Gore Pass, July 29th; Steamboat Springs, July 26th
(Gillette). Rabbit Ears Pass, Routt. County, July 20th;
Steamboat Springs, July 14th (Baker).

Oncotylus repertus Ubler 2. sp.

“Blunter than O. sericatus Uhler, clear bluish green, distinctly pubescent, moderately flat,
with the costal margin more broadly curved than in the species cited, with the head, base of
scutellum and outer border of corium almost white, yellowish when less fresh. Head broad, sub-
conical, polished, closely white pubescent, vertex feebly convex, the carina low, a little curved
back of the line of the eyes; grooved in front of the carina; eyes brown, of medium size, moder-
ately prominent, placed nearly vertical; the front transverse, wrinkled, moderately convex,
becoming a little narrower below, separated from the tylus by a deep incision, which crosses
the entire face; tylus subconical, wide at base, curving beneath; rostrum greenish-white,
piceous and acute at tip; the inferior cheeks very long and wide, incised, a little swollen,
bucculae minute; antennae having the basal joint thick, shorter than the head, the second
joint very long, much more slender, almost as long as the clavus the last two joints lost. Pronotum
transverse, pubescent, the anterior border almost straight, a little callous and abruptly
separated from the head, the surface very uneven, with the anterior angles rounded off,
the callosities are oval, flat and far apart, the transverse impressed line sinuous,
placed about one-third the way back; the sides diagonal, callous, and the pleural flaps
subtriangular, narrow at tip, granular on the middle, a little hirsute; humeral angles
with a small knob; posterior margin feebly sinuated in the middle, obliquely curved each
side. Scutellum triangular, nearly equilateral, with the base exposed. Legs pale green,
the tarsi yellow, piceous at tip, spines dark. Corium, clavus, and cuneus a little hairy,
minutely and remotely granulated, the exterior margin strongly reflexed and bristly;
cuneus a little longer than wide, pale exteriorly; membrane moderately short, smoke-
blackish, whitish on the base and on the margins basally, the veins green. Venter
with longer bristles posteriorly.

Length to end of abdomen4mm. Totipof membrane 5.25mm. Width of pronotum scant
2mm. Described from two specimens, both females, sent to me from Colorado. A variety
of this species with hyaline membrane occurs near Los Angeles, California.”

Steamboat Springs, July 12th on Artemisia tridentata
(Baker). Foot-hills six miles west of Fort Collins, June 14th
(Gillette).

Oncotylus sericatus Uhler n. sp.

“Similar to Macrotylus vestitus Uhler, but larger and with a less acute and wider
head, the second joint of antennae much shorter and a little thicker; the color grass-
green above, closely covered with stiff white pubescence, greenish-white beneath. Head
closely pubescent, depressed across the vertex in front of the carinate line; the front a
little covex; the tylus wide and almost vertical, distinctly pubescent, rostrum slender,
reaching midway between the middle and anterior coxae, pale at base, piceous at tip;
antennae moderately stout, prominently pubescent, the basal joint clear green, longer
than the head. the second dull yellowish, but little longer than the distance from the tip
of scutellum to apex of clavus, the third and fourth joints a little dusky, becoming
gradually more slender, the fourth quite short. Pronotum very moderately convex, wider
than long, finely wrinkled, in front almost as wide as the distance across the eyes, the
humeral angles subacutely prominent, a very little rounded, with the outer border
callous, white, and sinuated, the transverse impressed line placed just behind the callosi-
ties and not reaching the sides; the pleural flaps long triangular, with the apex a little

50 PRELIMINARY LIST

curved forwards. Scutellum small. moderately convex. Hemelytra very long, the costal
margin gently curved, so as to be widest back of the middle, the surface of clavus, corium
and cuneus, minutely and remotely granulated, with the exterior margin a little paler
than the general surface; the membrane long, very faintly obscured, translucent, with
the veins green. Legs pale green, with the nails, spines, and tip of tarsi piceous.
Abdomen closely set with white pubescence.

Length to endof abdome: 4mm. To tip of membrane 6.5-7 mm. Width of pronotum
2mm. Several specimens have been sent to me from Colorado, where the species appears
to be rather common.”

Steamboat Springs, July 12th on Artemisia tridentata
(Baker). We have also received specimens (determined by
Mr. Uhler) taken at Colorado Springs in July by E. 8.
Tucker.

Macrocoleus coagulatus Uhler.

From wild gooseberry and other bushes in Clear Creek Canon. August 7th
(Uhler 5). Colo. (Gillette—see Osborn, 1).

Manitou, September 29th, Lamar, May 7th; Foot-hills five
miles west of Fort Collins, June 12th (Gillette). Fort Collins,
July 4th to October 7th; mountains south-west of North
Park, July 10th on Artemisia tridentata (Baker).

Macrotylus affiguratus Uhbler n. sp.

“Robust, grayish testaceous, finely pubescent, obscure fuliginous on most of the
hemelytra. Head conico-triangular, pale fulvous in front, greenish on the vertex, with
a diagonal black line each side converging anteriorly, from this a divaricating black line
runs downward each side upon the cheeks below to the eye, cheeks and tylus black, polished;
rostrum slender, piceous-black, reaching to the middle coxae; antennae stout, black,
moderately short, tapering continuously to the tip, the second joint a little longer than
the pronotum, the third a little shorter, the fourth very short, acute at tip. Pronotum
broad, well rounded off towards the sides on the posterior lobe, the lateral margins
oblique, gently curved, broadly pale, the surface greenish, uneven and wrinkled posteri-
orly, set with short black bristles at remote intervals, the anterior submargin flat, pale
with the margin recurved, a little sinuated in the middle, the callosities prominent,
surrounded with black and set in a blackish depression, behind the middle is an obscure
are of broken spots, humeri oblique, a little rounded at tip, the posterior margin very
gently curving toward the humeri; the pleural flaps deep, sunken, black, excepting the
margins, the flap of prosternum also black bordered with pale yellow; sternum and a long
stripe on the outer border of pleura also black. Legs obscure yellowish, with flecks, the
spines, knees, tip of tibiae and tarsi black. Scutellum greenish, widely exposed at base,
with a few scattered points, a faint middle line and the sparse bristies black. Clavus
dull pale greenish, minutely sparsely granulate and punctate, with but few indications of
hairs, the corium more obscure, similarly granulate and bristly, with the costal margin
and veins pale; the cuneus, its callous inner angle, and thickened short inner margin of
the corium and the basal margin of the membrane pale yellowish; membrane short a
little dusky, with the veins pale. Venter pale greenish, with the sutures, and border of
the ovipositor black.

Length to end of abdomen 4.5 mm. Width of pronotum 1.75 mm. Decribed from one
specimen, a female, sent to me from Colorado.”

North Park, July 20th (Gillette). Steamboat Springs,
July 12th, on Delphinium occidentale and other low herbs
(Baker).

HEMIPTERA OF COLORADO. D1

Macrotylus moerens Uhl.

Steamboat Springs, July 16th and 26th (Baker and
Gillette). Spring Canon, June 30th; Estes Park, July 10th;
North Park, July 20th; Manitou, June 25th (Gillette).
Macrotylus verticalis Uhl.

Montrose, June 24th (Gillette).

Bolteria picta Uhl.

North Park, July 20th; Leadville, August 25d (Gillette).
On Grizzly Creek, in mountains south-west of North Park,
July 10th, on Artemisia tridentata; Steamboat Springs, July
12th (Baker).

Episcopus ornatus Reut.
Colorado Springs, August 3d (Gillette).

Plagiognathus annulatus Uhler n. sp.

“Closely related to P. arbustorum F., but narrower and smaller, brownish-black, long-
oval, polished, with pal: yellow legs, having the femora streaked and the tibiae annu-
lated or spotted with black. Head longer than wide, acute in front, convex, highly
polished, faintly tinged with brown: vertex concurrently convex with the front; the
occiput arched and with the edge obscure fulvous; tylus scarcely more prominent than
the front, curved, highly polished; rostrum reaching to the middle coxae, yellow, with
the basal joint black and the apex piceous; antennae of medium length, the basal joint
black, scarcely longer than the head, the second yellow in the middle, or nearly all yellow
but the base, a little longer than from the front of the eye to the base of pronotum, third
and fourth more slender, yellow. Pronotum deep black, highly polished, growing much
narrower anteriorly, minutely, irregularly and obsoletely rugose, more convex posteri-
orly; the callosities large, very slightly prominent, with an indented space between, and
a wavy impressed line forming the boundary between them: the lateral margins oblique,
barely sinuuted with the edge a little keeled, deflexed; anterior angles a little rounded,
callous; posterior margin gently arcuated; the humeri prominent, almost acute, with an
impression bounding them inwardly. Scutellum feebly convex, a little unevenly rugu-
lose, the tip acute and set off by a transverse series of punctures placed a little way back.
Cerium deep black, long, highly polished, obsoletely and irregularly rugose over most of
the surface, with some punctures on the depressed borders; the clavus obsoletely and
coarsely rugose, with series of shallow punctures on the sutures; base of cuneus marked
by an obscurely pale sutural line; the outer angle of base of membrane marked by a
triangular white spot, remainder of membrane fuliginous black. Legs pale yellow, the
base of anterior coxae, the knees, rings and spines of tibiae and the tarsi black.

Length to end of abdomen 3.5 mm. Totip of membrane4mm. Width of pronotum1
full mm. Described from one female specimen sent to me from Colorado. It inhabits
also northern Illinois, Canada west, and New England.”

Steamboat Springs, July 16th (Baker).

Plagiognathus fraternus Uhiler n. sp.

“Larger and more flat above than P. obscurus Uhler, color black, minutely sericeous
pubescent. Head triangular, a little longer than wide, acute at tip, with the sides a little
sinuated; occipital carina indistinct, pale yellow, front convex, a little roughened on the
middle; the tylus prominent, highly polished, comparatively narrow, a little curved;
rostrum reaching upon the middle coxae, basal joint stout, a little longer than the throat,
blackish-piceous, the middle joints fulvo-piceous, the apical joint blackish; antennae

Oy PRELIMINARY LIST

black, dull testaceous beyond the base of the third joint, the basal joint shorter than the
head, the second rod-shaped, scarcely as thick as the basal one, about as long as the face
and pronotum united, the third much more slender, about two-thirds as long as the
second, the fourth about equally slender, a little shorter. Pronotum wider than long,
with the lateral margins oblique; the front margin with a pale collum, reaching to the
middle of the eyes: middle surface behind the collum uneven and depressed between the
large oblique callosities: lateral margins reflexed, slender, pale; the humeral angles
subacute and pale; disk a little wrinkled, not distinctly punctate: pleural flaps polished,
black, with the segment next behind marked with a large greenish spot. Coxae mostly
greenish-white, femora flattened, testaceous, more or less piceous towards the tip, but
always omitting the apex of the posterior pair; tibiae testaceous with black knees, spines.
and their bases: tip of tarsi piceous. Scutellum obsoletely scabrous, acute at tip. Clavus
black, roughly wrinkled and a little punctate; corium pale testaceous, or ivory white,
marked with a large, somewhat ovate, ragged spot from before the middle to next the
tip; cuneus pale with a small black spot at tip; membrane dark fuliginous with a large,
clear spot on the middle, veins testaceous. Abdomen black, polished, the base more or
less greenish, and the incisures of the connexivum slenderly bordered with greenish.

Length to end of abdomen 4.5 mm. To tipof membranejSmm. Width of pronotum.
1.5-1.75 mm. Described from three specimens, including both sexes, sent to me from Colo-
rado. This species is more robust and less tender than P. obscurus. It also lacks the
yellow marking of the scutel, and has the callosities oblique, widely separated, and the
collum yellow or greenish.”

Steamboat Springs, July 12th, on Solidago, Delphinium
occidentale, and other low herbs (Baker).

Plagiognathus obsecurus Uhl.
Colorado(Uhler,land6). WestCliff, Custer County, July 27th (Cockerell, 10)..
Fort Collins, September 27th, on Bigelovia (Gillette).

Plagiognathus politus Uhler n. sp.

“Black. narrow, oval, highly polished, the sides of hemelytra but little wider behind
than anteriorly. Head short, acute at tip, including the eyes, but little wider than the
front of pronotum, base with a pale yellow carina: front moderately convex: tylus wide,
prominent: rostrum flavo-piceous, reaching upon the middle coxae; antennae long and

_slender, black, the basal joint thickest, the second as long as from the front of the eye to-
the base of the pronotum, the third more slender, about two-thirds the length of the
second, pale piceous or yellowish, the fourth equally slender, of the same color as the
third, and about one-half the length of the second. Pronotum a little wider than long,
faintly wrinkled, with the transverse impression interrupted and faint on the middle
continued toa sinus inward from the lateral margin: the lateral margins oblique, turned
down. sharply defined, with the interior angles rounded: posterior margin gently curved:
the humeral angles subacute. Scutellum convex, a little longer than wide, acute at tip.
Femora piceous black, the anterior ones pale at tip, coxae. in part and tibiae testaceous,
the spines and their bases black, tip of tarsi piceous. Clavus highly polished, remotely
and coarsely punctate and wrinkled: corium more minutely scabrous and obsoletely
punctate, very highly polished, the callous linear apex of the inner border testaceous:
the membrane dusky brown with the vein pale yellowish. Abdomen black, highly
polished, obsoletely scabrous.

Length to end of abdomen3mm. Width of pronotum 1.25 mm. Only one specimen, a
female, was sent to me from Colorado. A variety with yellow face anda pale lunule at
base of the cuneus was collected near Buffalo, N. Y., by Mr. VanDuzee. The type from
Colorado has also a faint, very narrow, curved band at base of cuneus.”

Fort Collins, July 24th (Baker).

Atomoscelis seriatus Reut.

Fort Collins, September 27th, on Bigelovia (Gillette).

HEMIPTERA OF COLORADO. 53

Maurodactylus angulatus Uhler n. sp.

“Mostly pale obscure testaceous above and black beneath, long oval, minutely
sericeous pubescent. Head nearly triangular, wider than long, dull black, irregularly
testaceous at base, face almost vertical, minutely, sparsely pubescent, feebly convex, not
apparently punctate, the occipital edge sharp, nearly straight, not carinate; the tylus
narrow, almost acute at tip; rostrum. yellow from base to middle, black from thence to
tip, reaching to behind the middle coxae, the basal joint reaching to the end of the arched
mucro, swollen at tip; the bucculae slender and pale yellow; antennae blackish, moder-
ately stont, reaching as far as to the middle of the venter, the basal joint projecting little
beyond the tip of the head, the second joint stout, of uniform thickness throughout, a
little longer than the vertex and pronotum, the following joints shorter and more slender.
Pronotum short, trapezoidal, transverse, a little polished, impunctate, minutely and
remotely pubescent, pale greenish testaceous, almost flat, with an abbreviated black line
crossing the line of the callosities, the anterior and posterior margins almost straight, the
lateral margins a very little sinuated, the pleural flaps deep, obscure black, bordered with
testaceous; pleural and sternal areas black, also partly margined with whitish. Legs
including the coxae, greenish yellow, the middle of femora, the spines, and apex of tarsi
black. Scutellum dull black, uncovered at base, and with a pale fulvous spot in each
basal angle. Hemelytia obscure testaceous, minutely pubescent, placed almost flat, with
the costal border a very little curved; clavus dusky towards the tip, corium with a double,
long, dusky, widening spot running back to tip, cuneus with a dusky spot near tip;
membrane long, pale dusky, darker in the basal cell. Venter polished, black, narrow,
with the edges of the segments obscure whitish.

Legthto end of venter3mm. Totipof membrane 3.5mm. Width of pronotum 1 mm.
Only one specimen has thus far been brought to my notice. It isa male, and bears some
resemblance to Maurodactylus alutaceus Fieber., of Europe.”

Steamboat Springs, July 12th (Baker).

Maurodactylus consors Uhler n. sp.

“form narrow, almost parallel sided on the hemelytra, very slightly pubescent above,
black, polished. Head triangular, wider than long, acute at tip; the occipital edge sharp,
a little raised at the middle; the face moderately convex, not apparently punctate; eyes
prominent, large, placed nearly vertical, set close to the pronotum, dark brown; the tylus
prominent, curving beneath: rostrum fulvo-piceous, darker at base and tip, reaching
upon the middle coxae; the bucculae pale, narrow; antennae black, long, with the two
basal joints stout, the second as long as from the scutellum toinner angle of the corium,
the third a little more slender, about three-fourths as long as the second, tbe fourth
scarcely more slender than the third, hardly one-half the length of the third. Pronotum
small, moderately convex, a little wider than long, minutely scabrous and a little
wrinkled; the anterior lobe short, tumidly elevated, with the impressed line feebly
defined; the lateral margins oblique, hardly sinuated; the anterior margin but very little
wider than the space between the eyes, with the collum obsolete, and a slight indentation
behind its middle; the forward slope of surface moderately steep: humeral angles
wrinkled, a little callous and acute. Scutellum widely exposed at base, longer than
wide, obsoletely and remotely scabrous, acute at tip. Yemora broad, black, yellow at
tip, the anterior and middle parts. tibia and the tarsi pale piceous, with the spines black.
Clavus obsoletely scabrous; the corium a little more finely so; cuneus separated from
the corium by a slender angular pale line; membrane dusky, iridescent, with the base
next the cuneus and the looped vein pale. Venter black, short, polished.

Length to end of abdomen 3 mm. To tipof hemelytra4d.6mm. Width of pronotum
1.25 mm. Only one specimen, a male with long, curved, acute genital hooks, has been
sent to me from Colorado ”

Leadville, August 23d (Gillette).
Agalliastes apiatus Uhler n. sp.

“Long-oval, polished, dark brown or black, minutely pubescent. Head short, moder-
ately wide, highly polished, with an indented line on the middle, the vertex prominent,
and a little triangular at base; front moderately convex, nearly vertical; tylus short,

54 PRELIMINARY LIST

narrow, prominent, black: rostrum slender, testareous, piceous at tip, reaching to the
posterior coxae; antennae dull black, of medium length, the second joint nearly as long
as the line from the tip of scutellum to the apex of clavus, the third joint a little shorter
and slightly more slender, tapering, the fourth scarcely more than one-third the length
of the third, still more slender. Pronotum transverse, polished, minutely pubescent, with
a few sparse punctures on a line in front of the low callosities, lateral margins short,
oblique, with the edge a little turned down, the collum confined to the middle of the
margin, and fading into the raised surface before reaching the line of the eyes; humeral
angles prominent, almost acutely callous; the posterior margin almost straight. Scutel-
lum short, almost flat, clothed with pale pubescence, the base usually exposed, sometimes
diszlosing the yellowish spot at each basal angle. Legs dull yellow, the posterior pair
having the femora black, all the tibiae with black spines and dots at base of spines; tarsi
piceous at tip. Hemelytra covered with short yellowish pubesence, the clavus wide
smoky fuscous; corium with a large fuscous, wedge-shaped spot, closed on the middle,
the outer and inner borders and base and tip dull testaceous; the cuneus dusky, bordered
all around with dull testaceous; membrane dusky, with the veins, buse and sometimes
the outer border pale. Abdomen black, polished, with a large greenish spot near the base,
and some greenish spots on the pleura. ,

Length to end of abdomen 2.25-2.5 mm. Width of pronotum 1-1.25 mm. This species
inhabits both Colorado and Kansas, It is no doubt quite common, but hitherto only a few
less mature specimens have been sent to me for examination. It closely resembles A.
apicalis Uhler, of the Atlantic States, but is a more robust and clumsy style of insect.”

Fort Collins. June 4th; Manitou, June 25th (Gillette).
Steamboat Springs, July 12th and 26th (Baker and Gillette).

Agalliastes associatus Uhl.

Colorado (Uhler, 6). Pueblo (Yarrow--see Uhler, 7). Various parts of
Colorado (Uhler, 9),

Fort Collins. July 24th to August 18th; Steamboat Springs,
July 12th (Baker). Horsetooth Gulch, May 18th; North
Park, July 20th; Trinidad, May 14th; Montrose, June 24th;
Glenwood Springs, August 24th (Gillette). Colorado Springs,
July (Tucker).

A galliastes decolor Uhl.

On Redstone Creek, twelve miles south-west of Fort
Collins, August Ist (Baker).
Agalliastes fumidus Uhler n. sp.

“Oblong-oval, pale fusco-olivaceous, clouded with smoke brown. Ilead narrow,
polished, almost vertical, black upon the clypeus and tylus, pale greenish above, vertex
strongly convex; rostrum pale towards the base, slender, reaching to the middle coxae;
antennae dusky testaceous, almost piceous at base, slender, abont three-fourths the
length of the body, the basal joint short, piceous black, the second fuscous, nearly as long
as the head and pronotum united, pubescent, the third and fourth more slender, pale,
much shorter than the second, eyes prominent, dark brown, placed diagonally. Pronotum
trapezoidal, transverse, bald, polished, moderately convex, pale olivaceo-testaceous, not
distinctly punctate, tinged with fuliginous each side anteriorly, the collum lower than the
base of the head, a little curved, with a black callous curved transverse line behind its
middle; lateral margins a little sinuated, slightly notched at the outer end of the
transverse impressed line, the lateral margin acute and reflexed throughout, the humeral
angles moderately prominent, pale; posterior margin a little curved. Exposed base of
scutellum black in the middle, yellow on either side, the scutellum proper tumid in the
middle, sunken and dark at base, pale on the acute apex. Legs smoky testaceous, dark

HEMIPTERA OF COLORADO. 55

near the tip of upper side of femora, tibiae testaceous with black dots and spines, tarsi
blackish; the coxae pale testaceous, the anterior pair with a black dot at base. Hemelytra
pale dull testaceous, the clavus entirely and the corium with a large long diagonal spot
reaching to the inner angle, two or three faint traces near the outer border, and the
middle of the cuneus, smoke brown; membrane smoke brown, the tip, inner border and
veins pale testaceous; a geminate pale short line occupies the point next the tip of the
cuneus. Abdomen smooth, piceous black, pale pubescent, the venter with a pale greenish
spot on the middle and another next the tip.

Length to end of abdomen 35mm. To tip of membrane 4mm. Width of pronotum
125mm. A single specimen of the male was sent to me from Colorado.”

Steamboat Springs, July 15th (Baker).
Agalliastes signatus Ubler n. sp.

“Form closely resembling A. associatus Uhler, black, dull, minutely pubescent. Head
short, acute, moderately convex, carinate on the occipital margin; the vertex with a
yellow band between the eyes; summit of front indented; tylus prominent, bounded by
dzep incisions; bucculae and rostrum fulvo-testaceous, the latter reaching to the
middle coxae, a little piceous at tip; antennae dull black, stout, tapering, the second joint
shorter than the head and pronotum united, the t'ird and fourth together shorter than
the second, more slender and pale piceous. Pronotum transverse, feebly convex, pale
pubescent, rough in the depressed space between the callosities and behind the anterior
margin; middle of the anterior margin carinate; lateral margins oblique and curved
down: posterior margin hardly sinuated, a littie hollowed each side near the humeri.
Scutellum short, subequilateral, apparently impunctate (damaged). Coxae and femora
of the anterior and middle legs fulvo-testaceous, with the tibiae paler, and together with
the posterior pair having black spines placed on black dots; posterior femora blackish;
tips of tarsi piceous. Posterior margin of propleura pale, remainder dull black. Clavus
dull fuscous, pale pubescent, scabrous: corium obsoletely scabrous, pale pubescent,
brown, pale at base and along the costal border, with the inner suture a little paler than
the adjoining surface; cuneus fuscous, with a pale Dand at base, and a small spot at tip;
membrane dusky, with the veins pale testaceous. Abdomen black, polished, minutely
pubescent.

Length to end of abdomen 2rim. Width of pronotum .87 mm. The description is
derived from a single male specimen sent to me from Colorado. The characters given
will no doubt require modification when both sexes are sufficiently studied.”

Manitou, June 25th (Gillette).
Agalliastes simplex Uhl.

Steamboat Springs, July 14th (Baker).
Lyctocoris campestris Fab.

Fort Collins, Mareh 2d, under a board (Baker).

Triphleps insidiosus Say.

Suburbs of Denver, August 5th. Doubtless introduced into the west with
raspberries, blackberries, and other small fruit (Uhler, 5).

Fort Collins, May 27th to August 22d, and May 18th to
June 12th on alfalfa (Gillette and Baker).
Anthocoris antevolens B. White.

Leadville, August 23d; Montrose, June 24th (Gillette).
Aunthocoris musculus Say.

Above timber line (Carpenter—see Uhler, 6). On wing and on plants on

56 PRELIMINARY LIST

steep side of mountain in pine woods, Beaver Brook Gulch; also on Clematis,
August 6th (Uhler, 5),

Fort Coliins, March 24th to April 26th; foot-hills five
miles west of Fort Collins, April 20th to August Ist; Cameron
Pass at 12,000 feet, July 5th on Salix (Baker). Estes Park,
July 12th; Manitou, September 29th, on willow; Dolores,
June Ist; Montrose June 24th; Leadville, August 23d
( Gillette).

Aecanthia hirundinis L.

Dolores, June 18th, common in swallow’s nests (Gillette).

Acanthia lectularia L.

West Cliff, Custer County, too frequent (Cockerell, 10).

Fort Collins and Denver (Gillette). Colorado Springs
(Tucker).

Piesima cinerea Say.

West Cliff, Custer County, July 27th (Cockerell, 10). Colorado (Gillette—
see Osborn, 1).

Fort Collins, March 23d to October L5th, May 7th to June
9th on alfalfa, and August 1$th on black walnut (Baker).
Manitou, June 25th; Montrose, June 24th; Dolores, June
18th (Gillette). Colorado Springs (Tucker).

Agrammodes Uhler n. gen.

“Form conico-ovoid, similar to a broud Agramma, but widely different in venation,
and having the head formed nearly asin Piesma. Head much narrower than the pro-
notum and curving downincontinuity therewith, the base wide, with the clypeus abruptly
narrower, protracted forwards in two slender tapering lobes in advance of the stouter
tylus; eyes large, round, seated close against the pronotum. Antennae short, clavate at
tip, the basal joint stout, contracted at tip the second very short, moniliform, the
third longest and most slender, the fourth shorter, contracted on the basal portion.
kostrum tapering, reaching behind the anterior coxae. Pronotum gently curved, some-
what flattened near the anterior angles and depressed behind them, the anterior submar-
gin inflated into a crescentiform low hood which does not extend to the lateral angles;
lateral margin sharp cut, a little diagonal; surface coarsely granulated. Scutellum
minute, tumid. Legs short and thick. Hemelytra broad suboval, granulated, coriaceous
throughout, with the veins very coarse and prominent; clavus formed of one short tri-
angular areole, bounded exteriorly by a long and moderately narrow areole which is
oblique at tip, and from this the inner vein runs back to near the tip and forms an arrest
for the two discoidal veins which bound wide triangular areas, and curve inward as they
approach this inner vein; the costal area wide, depressed, continued to end of wing-cover,
crossed by a few irregular veins, the inner veins are continued across the area which
forms a substitute for the membrane.”

Agrammodes costatus Uhler n. sp.

“Dull pale greyish-brown, with the pronotal submargin and a large spot on the base
of each wing-cover white. Head blackish-brown, unevenly scabrous and granulated,
the clypeus prolonged, acute and cleft; antennae honey-yellow, the apical joint piceous

HEMIPTERA OF COLORADO. 57

black; rostrumand throat rust-brown. Pronotum fuscous, coarsely granulated, narrower
than the base of the wing-covers, and somewhat quadrangular in outline, the lateral
margins a little reflexed, the posterior margin distinctly curved, anterior angles a little
rounded, the anterior margin wider than the breadth across the eyes. Wing-covers pale
greyish-yellow, with irregular patches of dark brown granules aggregated more particu-
larly near the base and along the disk; the large pale spots at base angular and tinged
with greenish; veins mostly dark brown, very prominent, the area on the apical border
pale, crossed by the divaricating inner vein and the one next outside from it, the areoles
are continued to near the apex, and the discoidal one is crossed by four oblique veins.
Underside rust-brown, obscured by some darker patches, and set with a few small
granules, the orifices of the stigmata placed in knobs.

Length to end of hemelytra 2 mm. Width of base of pronotum .75 mm, Only one
specimen has been brought to my notice. It isa male sent to me from Colorado. This is
the most remarkable form of the family Tingidae which has yet been placed within my
reach for study. It is asynthetic type which unites in itself a structure of wing-covers

closely related to Oxycarenus, of the family Lygaeidae, and on 1!\e other hand, the
characteristic head of Piesma and the granular surface of Agramrau. Taken in allits
features it is the most peculiar form of Tingid which has yet bee: discovered in North

America. The other sex is unknown to me and it might add further characteristics to
the genus if once brought to notice.”

Estes Park, July 12th (Gillette).
Corythuea arcuata Say.

Colo. (Gillette—see Osborn, 1).

Fort Collins, July 29th (Baker). Foot-hills five miles west
of Fort Collins, April 25th to Angust Ist (Gillette and
Baker). Steamboat Springs, July 26th (Gillette).

Corythuea ciliata Say.

Custer County, midalpine (Cockerell, 10).

Fort Collins, May 38lst on alfalfa (Baker). Steamboat
Springs, July 16th and 26th (Baker and Gillette). Montrose,
June 24th (Gillettee).

Corythuca fuscigera Stal

Fort Colllns, July 2d in all stages on Cnicus; Steamboat
Springs, vuly 15th (Baker). Colorado Springs, August 3d
(Gillette).

Gargaphia tiliae Walsh.
Rist Canon, May 29th (Gillette).
Aradus acutus Say.
Colo. (Uhler, 6). Roaring Fork (Rothrock—see Uhler, 2).
Fort Collins, March 31st: (Gillette).
Aradus affinis Kirb.
Dolores, June 18th: Estes Park, July 9th (Gillette).

5S PRELIMINARY LIST

Aradus americanus Fab,

Colo. (Carpenter, 1).

Rist Canon, May 29th (Gillette).
Aradus debilis Uhl.

Colo. (Gillette—see Osborn, 1).

Aradus obliquus Uhl.

Rist Canon, April 9th (Baker).
Aradus rectus Say.

Colo. (Uhler, 1 and 6). From mountains near Beaver Brook Gulch,
August 6th (Uhler, 5), Colo. (Gillette—see Osborn 1),

Fort Collins. August 19th; Steamboat Springs, July 26th;
Montrose, June 24th; Dolores, June 15th (Gillette).

Aradus tuberculifer Kirb.

Colo. (Uhler, 6). Far up Beaver Brook Gulch, August 6th (Uhler, 5). Near
Idaho Springs, July 6th (Packard—see Uhler, 5).

Phymata fasciata Gray

Colo. (Uhler, 1). Widely distributed over the west. Common around foot-
hills and on plains wherever land is cultivated. Generally found on stems of
Euphorbias and sun-flowers (Uhler, 5). Coio. (Uhler, 8).

Rist Canon, August 10th (C. E. Pennock). foot-hills five
miles west of Fort Collins, September Ist (Gillette). Boulder,
September 4th (Baker). Colorado Springs (Tucker).

- Coriseus ferus Linn.

Colo. (Uhler, 6). Colorado Springs, June (Yarrow—see Uhler, 7). Southern
Colorado June to July (Carpenter—see Uhler, 7). Widely distributed on
plains and in mountains and foot-hills, especially in settled portions. In damp
situations in Beaver Brook Gulch, Clear Creek Canon, in Denver and around
it at the lower levels, in the region of Colorado Springs and Manitou, near
Canon City, and in the valley of the Arkansas, it is quite common in August
(Uhler, 5). Denver, June 27th (Packard—see Uhler, 5). Ula, Custer County,
November 12th; West Cliff (Cockerell, 10). Colo. (Gillette—see Osborn, 1).

Fort Collins, September 27th, on Bigelovia and Khus
trilobata, and October 7th (Baker and Gillette). Colorado
Springs, Green Mountain Falls (Tucker).

Coriscus inseriptus Kirb.

Colo. (Uhler, 1). August 14th, Nathrop, Chaffee County (Cockerell, 3).
West Cliff, Custer County, July 27th; also subalpine; also in Chaffee, Gunnison,
and Pueblo Counties (Cockerell, 10).

HEMIPTERA OF COLORADO 59

Coriscus Kalmii Reut.

Fort Collins, April 7th to May 13th, September 14th on
Solidago, and September 27th on Solidago and Carex (Baker
and Gillette).

Coriscus punctipes Reut.

Mesa County (Cockerell).
Coriscus rafusculus Reut.

Fort Collins, May 27th to August 18th, June 9th on alfalfa,
September 2d on Solidago, October 7th on grass; Steamboat
Springs, July 12th on Carex (Baker). Colorado Springs,
August 3d; Montrose, June 24th; Dolores, June 18th
(Gillette). |
Coriscus sericans Reut.

Steamboat Springs, July 25th; Rabbit Ears Pass, Routt
County, July 20th (Baker).

Coriscus subcoleoptratus Kirb.

Colo. (Uhler, 1 and 6).

Sinea diadema Fab.

Colo. (Uhler, 6). From weeds in suburbs of Denver, August 8th (Uhler, 5).

Foot-hills five miles west of Fort Vollins, March 15th to
August llth (Gillette).

Acholla multispinosa DeG.

Colo. (Uhler, 1),

Boulder, September 4th (Baker).
Fitchia nigrovittata Stal.

Colo. (Uhler, 6). Colo. (Gillette—-see Osborn, 1).

Common near Fort Collins, and in the adjoining foot-hills,
during winter, under stones and boards (Baker and Gillette).
Fitchia spinosula Stal.

Colo. (Uhler, 6).

Repipta taurus Fab.
Southern Colorado (Riley).
Milyas cinctus Fab,
Foot-hills, five miles west of Fort Collins, September Ist

60 PRELIMINARY LIST

(Gillette).
Diplodus luridus Stal.

Colo. (Uhler, 1 and 6). Colorado Springs, August 10th (Uhler, 5). Manitou
and Garden of the Gods, July 13th to 16th (Packard—see Uhler, 5).

Fort Collins, July 4th; foot-hills five miles west of Fort
Collins, June 30th (Gillette).
Diplodus ‘socius Uhl.

Estes Park, July 16th (Gillette).
Apiomerus flaviventris H. Schf.

Larva from a bush in Clear Creek Canon, near mouth of Beaver Brook
Gulch, August 7th (Uhler, 5). Brown variety on foot-hills at mouth of Clear
Creek Canon, July 3d, in Garden of the Gods, and at Manitou, July 13th to
15th (Packard—see Uhler, 5).

Apiomerus pictipes H. Schf.

Foot-hills eight miles south-west of Fort Collins, June 30th
to July 12th; Silverton, June 20th (Gillette).
Apiomerus spissipes Say.

Colo. (Uhler, 1 and 6). Valley of Arkansas, near Canon City, August 11th
(Uhler, 5), Colo. (Snow—see VanDuzee, 5).

Apiomerus ventralis Say.
Colo. (Gillette—see Osborn, 1), Estes Park (Snow—see VanDuzee, 5).
Fort Collins, May 14th on alfalfa (Baker). Foot-hills five
miles west of Fort Collins, March 12th to June 12th;
Graymont, July 15th (Gillette).
Pygolampis pectoralis Say.
Fort Collins, April 6th under a board in edge of field
(Baker).
Spilalonius geniculatus Stal.
Pueblo (John Lansing).
Hygrotrechus remigis Say.

Colo, (Uhler, 1). Mountains in July (Carpenter—see Uhler.6). From water
on plains of Southern Colorado, June to July (Carpenter—see Uhler, 7). On
still water along margin of Sloan’s Lake; very abundant on surface of
irrigating canal proceeding from Canon of Arkansas, in August (Uhler, 5).
Denver, July 10th; Boulder, June 20th; Manitou, July 15th (Packard—see
Uhler, 5).

Near Fort Collins and in the adjoining foot-hills, common

HEMIPTERA OF COLORADO. 61

throughout the summer, especially on water in ditches;
during winter hibernates under stones, rubbish, ete. ( Baker).
Dolores, June 16th (Gillette).

Limnotrechus marginatus Say.

On surface of puddles in western suburbs of Denver in August (Uhler, 5).
Near Manitou, July 15th (Packard—see Uhler, 5). Common on Grape Creek,
West Cliff, Custer County, May 25th (Cockerell, 10).

Limnotrechus productus Uhler n. sp.

“Larger and somewhat more robust than L. marginatus Say. with long, somewhat
flattened, anal processes of a yellow color forming the prolonged ends of the flat, broad
connexivum, and is of the same color as the last three segments. Color of the upper
surface dark brown with a tinge of fuscous on the pronotum. Head of medium length,
fuszous, covered with silvery, scaly pubescence on the lower sides and beneath. The
antennae short and stout, rusty brown, the second and third joints a little thicker and
darker at tip, the second shorter than the apical, but longer than the third, the basal one
a little longer than the superior line of head, the fourth a little shorter, dark in color and
tapering towards the tip. Rostrum swollen at base, reaching a little behind the anterior
coxae, with the tip black. Pronotum with the anterior lobe quadrangular and flat, a very
little shorter than wide, the anterior border a little thickened and raised, the middle line
behind this depressed and marked with a short, yellow stripe, the posterior lobe evenly
rounded off, a little flattened, destitute of a carinate line, lateral margiis narrowly
yellow; underside all silvery white. Legs of medium length, pale rusty beneath, the
posterior femora as long as from the base of posterior coxae to the end of venter.
Veins of corium prominent, two of the oval medio-apical areoles pale. Sutures of con-
nexivum pale, outer half of the connexivum of the last three ventral segments including
most of the segments themselves and the cerci, yellow, the middle line of venter with
four ind *nted spots.

Length to end of analsegment10mm. Widthofpronotum2mm,. A Single female was
sent to me from Colorado.”

Fort Collins, April 13th (Gillette).

Limnoporus rufoscutellatus Latr.

From stagnant water above the Rio Grande (Rothrock—see Uhler, 2).
Mountains, July (Carpenter—see Uhler, 6). Seems to be common in Colorado,
where it attains to full proportions, and puts on its clearest russet-brown coat
(Uhler, 6). On surface of small ponds and puddles in depressions of plains
west of Denver, August 8th and later (Uhler, 5). Denver, July 28th (Packard
—see Uhler, 5).

Hebrus concinnus Uhl.

Fort Collius, April 7th to October 15th (Baker).
Hebrus sobrinus Uhl.

On margins of ponds west of Denver (Uhler, 5).

Microvelia americana Ubhler n. sp.

“Dark brown,velvety above, more or less powdered with plumbeous, body a little
tapering behind the curved base of sides. Head short, triangular before the eyes,
margined with silvery, prostrate pubescence from behind the eyes and along their inner
border forward to the cheeks; the throat testaceous; middle line of head obsoletely
callous-carinate; rostrum testaceous, piceous at base and tip, reaching to the posterior
line of the anterior coxae; antennae slender, obscure testaceous, darker on the tip of the

62 PRELIMINARY LIST

fiirst and second joints, the second joint shortest, the third and fourth much more slender,
the fourth a little longer than the third. Pronotum triangular both before and behind
‘the humeral angles, the anterior division very slightly sinuated on the sides, feebly
notched at the end of the scutellum behind the anterior lobe; collum distinct, with an
‘orange band on the middle; the surface rugulose and punctate behind this; the lateral
‘and posterior margin orange, the tip a little rounded; the humeral angles moderately
subacute, with the edge a little callous Pleural pieces bordered with rufo-testaceous;
the coxae, trochanters, border of sternum, and legs yellowish-testaceous, with the
femora, tibiae and tarsi dusky or piceous above. Scutellum fuscous, almost completely
concealed beneath the projecting pronotum. Hemelytra pale smoke-brown, narrower
than the abdomen, with the veins darker, and a short streak at base of corium pale
yellowish. Tergum rufous along the middle, blackish exterior to this; the connexivum
both above and below, orange interrupted with black. The underside dull black with a

tinge of plumbeous, a little sericeous, the posterior segments rufous on the middle, and the
genital segment yellow.

Length to tip of venter3mm. Width of pronotum 1.25mm. This is a common species
in Maryland, and is also foundin North Carolina. It has also been collected in Colo-
rado, and in the vicinity of San Diego, California. In Maryland it occurs on the borders
of small streams during summer, and is occasionly found full-winged in the month of
June. The male is narrower and more wedge-shaped posteriorly than the female.”

Foot-hills five miles west of Fort Collins, March 12th to
April 21st (Gillette).

Macrovelia hornii Uhl.

Fort Collins, April 14th; Rist Canon, April 9th (Baker).
Salda coriacea Uhl.

Denver (B. H. Smith—see Uhler, 5).
Salda dispersa Uhl.

Comparatively abundant in various places west of Denver (Uhler, 9).
Salda humilis Say.

West Cliff, Custer County, July 31st (Cockerell, 10).
Salda interstitialis Say.

Roaring Fork (Rothrock—see Uhler, 2). Colorado (Uhler, 6). Ula, Custer
County, November 12th (Cockerell, 10..

Fort Collins, August 27th; foot-hills five miles west of Fort
Collins, March 12th to April 9th; Estes Park, July 12th
(Gillette).

Salda pallipes Fab.

In western suburbs of Denver may be found in untold numbers on dark,
damp, sandy and muddy soil, during August. Also near stream in Beaver
Brook Gulch, and in Clear Creek Canon (Uhier, 5). Georgetown, July 8th,
9,500 feet (Packard—see Uhler, 5).

Colorado Springs, July (Tucker).

Galgulus oculatus Fab.

Colorado ;Gillette—see Osborn, 1).

a

HEMIPTERA OF COLORADO. 63

Boulder, September 4th; Fort Collins (Baker).
Ambrysus signoretii Stal.

Fort Collins, August 11th (Baker).
Zaitha micrantula Stal.

Fort Collins, August 27th (Gillette).
Belostoma americanum Leidy.

Occasional about electric lights at Fort Collins (Baker).
Belostoma annulipes H. Schf.

Pagosa, September 5th (Yarrow—see Uhler, 7).
Ranatra quadridentata Stal.

Fort Collins, August 27th (Gillette).
Notonecta insulata Kirb.

Mountains, July (Carpenter—see Uhler, 6). Quite common in several pools
of water standing in hollows near bed of creek on outskirts of Denver, August
4th and 5th (Uhler, 5).

Fort Collins, August 27th (Gillete).

Notonecta mexicana A. and 8S. Det. by Osborn.
Fort Collins (Gillette).

Notonecta undulata Say.

In several pools of water standing in. hollows near bed of creek on outskirts

of Denver, August 4th and 5th. Not so common as N., insulata (Uhler, 5).
Larva, nymph and imago from Sloan’s Lake, west of Denver, July 10th
(Packard—see Uhler, 5).

Fort Collins, August 27th; foot-hills five miles west of Fort
Collins, April 20th (Gillette).
Corisa calya Say.

Fort Collins, August 27th (Gillette).
Corisa expleta Ubler n. sp.

“Olivaceo-fuscous above, form of C. alternata Say. Head strongly and bluntly cari-
nate above, the carina produced posteriorly on the base of the vertex; face moderately
convex, a little peaked above in front of the blunt carina, marked with a line of punctures
each side, a little hollowed beneath the eyes, and with a few shallow punctures there as
well as towards the front; clypeus depressed, covered with long coarse, white bristles.
Pronotum subcordate, wider than long, convex, obsoletely and minutely rastrated, with
the transverse bands bounded in part by scratched lines, the black bands slender, bent
anteriorly, about thirteen in number, the lateral margin and anterior angles broadly
yellow, the middle behind the produced occiput marked with a short carina, the apex of
posterior margin obliquely curved. Palae of female moderately slender, long, cultrate,
strongly curved, subacute, with long bristles, the trochanter stout and moderately long,
the coxae long, stout, compressed inwardly and growing wider towards the base. Clavus

64 PRELIMINARY LIST

finely rastrate, crossed by slender yellow lines, those of the case nearly straight, of the
middle broken and irregular, of the posterior third waved; yellow lines of the corium very
short, wavy or irregularly sigmoid, beginning at base in two widely separated series and
continued towards tip in about five, partly broken series; marks of the membrane short,
uneven, sigmoid or irregularly waved; the embolium (sic Fieber) is broad, whitish, marked
at base with a streak, with an oblique stripe on the cross vein, a spot some distance before
the tip and another at the tip, black. Beneath whitish yellow; tergum black, excepting
the lateral border and tip, which are yellowish.

Length to end of abdomen 7-8 mm. Width of pronotum 2.25-2.75mm. Two specimens,
females, were sent to me from Colorado. A closely related species occurs in Texas and
California, but my series of them is too imperfect to afford accurate deductions. The
male is a desideratum.”

Fort Collins, June 25th at light (Baker). Spring Canon,
April 21st (Gillette).
Corisa inscripta Uhl.

Southern Colorado (Uhler, 8).
Corisa interrupta Say.

Sloan’s Lake, west of Denver, August (Uhler, 5); same place in July
(Packard—see Uhler, 5).
Corisa striata L.

Fort Collins, June 15th (Baker).
Corisa sutilis Uhl.

Mountains, July to September (Carpenter—see Uhler, 6), Sloan’s Lake,
west of Denver, August 5th (Uhler,5). Common in the mountains of Colo-
rado (Uhler, 9).

Corisa tumida Uhl.

Sloan’s Lake west of Denver, July 10th (Packard—see Uhler, 5), Sloan’s
Lake, in August, and also in several pools of water on the low grounds of
suburbs of Denver, August 5th and 8th (Uhler, 5).

Colorado Springs, August (Tucker).

Cicada dorsata Say.

Colorado (Thomas—see (Uhler, 6).

Cidada marginata Say. Det. Baker.

Canon City, August 31st (Gillette).

Cicada tibicen L.

Mountains of Colorado (Uhler, 6).
Proarna valvata Uhl.

Canon City, July 3d (Riley).
Tibicen synodica Say.

Common in eastern Colorado (Thomas and B. H. Smith—seejUhler, 6).
Near Canon City, August 11th (Uhler, 5). Southern Colorado,4¥June to July

HEMIPTERA OF COLORADO 65

(Carpenter--see Uhler, 7). Denver and Boulder (Putnam, 4).

Fort Collins, June 21st (Baker), and July 5th (Gillette’.
Manitou Park (Snow).
Tibicen rimosa Say.

Southern Colorado, June to July (Carpenter—see Uhler,7). Near Denver
( Thomas—see Uhler, 6). On Clear Creek at Floyd’s Hill (Putnam, 4).

Spring Canon, July 4th (Gillette).
Tibicen cruentifera Uhl.

Colorado (Riley).
Platypedia putnami Uhl.

Clear Creek Canon (Uhler, 4). Near Clear Creek (Putnam—see Uhler, 5).
On Clear Creek, near Floyd’s Hill (Putnam, 4).

Horsetooth Gulch, May 18th; Rist Canon, May 29th;
Howe’s Gulch, June 14th (Gillette).

Melampsalta parvula Say.

Colorado (Snow).
Publilia modesta Uhl.

(Publilia bicinctura Godg. Ent. News, ILI, p. 200.

Colo. (Thomas—see Uhler, 6). Clear Creek Canon, August 6th; Colorado
Springs and Manitou, August 17th, west of Denver, August 18th; Pueblo,
August 10th (Uhler, 5). Cusack Ranch, Custer County, on Gymnolomia
multiflora (Cockerell, 10). Fort Collins, June and August, on Glycyrrhiza
lepidota (Gillette—see Goding, 2).

Foot-hills five miles west of Fort Collins, May 1Sth to
September Ist (Gillette). Fort Collins, May 29th to October
7th on Solidago, Glycyrrhiza lepidota, alfalfa, Helianthus,
Iva xanthiifolia, and Artemisia; Steamboat Springs, July
15th (Baker). Colorado Springs, August (Tucker).

Goding’s bicinctura must be referred to this species. We
have every gradation between the two, and also forms varying
to auniform deep chocolate. Furthermore, we have reared
them in abundance together on the same food-plants from
nymphs which were indistinguishable. Dr. Uhler, to whom
we sent a complete series, corroborates. the reference and
states that he was previously acquainted with all the forms.
Ceresa bubalus Fab. Det. Goding.

Near Pueblo (Yarrow—see Uhler, 7). Met with at every place affording

66 PRELIMINARY LIST

sufficient moisture for growth of willows. In Denver found on many weeds
in low places as well as willows. Also found at Canon City and in Clear
Creek Canon (Uhler, 5). Near Eagle River in August, and in other parts
of Colorado, June to September (Carpenter—see Uhler, 6). Colorado (Riley—
see Goding, 3).

Colorado Springs (Tucker). Glenwood Springs, August
24th; Canon City, August 31st; Fort Collins, September 27th
on Solidago spectabilis and Aster canescens, September 31st
female depositing eggs in apple twigs (Gillette). Fort Col-
lins, July 24th on Apocynum androsaemifolium, August 4th
on alfalfa, August 11th very abundant on Glycrrhiza lepidota
(Baker). Specimens of apple twigs with egg punctures
have been received from several parts of the state, including
Rocky Ford, Arvada and Windsor, From the last lot, which
were placed in a breeding cage, there emerged on May
19th, numerous specimens of Cosmocoma howardii Ash.
(determined by Ashmead). We have often found the imago
infested with a minute red mite, Kupalpus echinatus Bks.
(determined by Banks). Soft maple twigs in the vicinity of
Fort Collins are also considerably infested with the eggs of
this insect.

Ceresa turbida Godg. Det. Goding.
Colorado (Gillette—see Goding, 3).
Steamboat Springs, July 26th; The Rustic, Larimer
County, August 11th (Gillette).
Ceresa diceros Say.
Colorado Springs (Tucker).
Stictocephala festina Say.
Colorado (Riley—see Goding, 3).
Stictocephala franciscana Stal.
Steamboat Springs (Gillette—see Goding, 3).
Steamboat Springs, July 26th; Rist Canon, July 30th
(Gillette).
Stictocephala gillettei Godg. Det. Goding.

Colorado (Gillette—see Goding, 1 and 3). Trinidad, May 14th (Gillette—see
Goding, 2).

Fort Collins, July 29th, on Psoralea tenuiflora; Four-mile

HEMIPTERA OF COLORADO. 67

Hill eight miles south of Steamboat Springs, July 15th
(Baker).

Stictocephala inermis Fab. Det. Goding.
Steamboat Springs, July 26th (Gillette ).

Stictocephala viridis Godg. Det. Goding.
Rist Canon, May 29th (Gillette)

Thelia univittata Harr. Det. Goding.

Routt Co. (Gillette—see Goding, 3).
Steamboat Springs, July 26th (Gillette).

Telamona monticola Fabr.
Colorado (Goding, 3).

Telamona pyramidata Uhl. Det. Goding.

Southern Colorado, June to July (Carpenter—see Uhler, 7). Southern Colo-
rado (Uhler—see Goding, 3). Colorado (Snow—see VanDuzee, 5).

Fort Collins, July 20th on cottonwood, and August 14th
on Virginia Creeper (Baker). Colorado Springs, July 27th
on cottonwood (Gillette).

Telamona querci Fitch.

Colorado (Carpenter—see Uhler, 6).

Telamona reclivata Fitch. Det. Goding.

Colorado (Baker—see Goding, 3).

Fort Collins (Baker).

Heliria scalaris Fm. Det. Goding.

Fort Collins, July 4th (Gillette—see Goding, 2). Colorado (Baker—see
Goding, 3).

Fort Collins, July 5th (Baker). La Veta, July 4th (EK. A.
Schwarz).
Acutalis calva Say.

Colorado (Riley—see Goding, 3).
Cyrtolobus fenestratus Fitch.

Colorado (Thomas—see Uhler, 6). Manitou, on small oak trees, August
16th (Uhler, 5). Colorado (Uhler—see Goding, 3).

Cyrtolobus vau Say. Det. Goding.
Colorado (Gillette—see Goding, 3).

Manitou, June 25th; Montrose, June 24th (Gillette).

68 PRELIMINARY LIST

Steamboat Springs, July 12th (Baker). Garden of the Gods;
Green Mountain Falls (Tucker).
Vanduzea arquata Say. Det. VanDuzee.

Colorado (Gillette—see Goding, 3).

Dixon’s Uanon, five miles west of Fort Collins, September
Ist (Gillette).

Vanduzea vestita Godg.

Colorado (Goding, 3).

Campylenchia curvata Fab. Det. Goding..

Eagle River, August 29th (Carpenter—see Uhler, 6). Near Boulder, June.
29th (Packard—see Uhler, 5). Denver, near Golden, near Colorado Springs, om
small plants in low ground, and also in the valley of the Arkansas near Canom
City in August (Uhler, 5). Colorado (Riley—see Goding, 3).

Steamboat Springs, July 26th; Rist Canon, August 8th;
Dixon’s Canon, September Ist; Estes Park, July 12th
(Gillette). Fort Collins, August 11th on Glycyrrhiza lepi-
dota, July 24th on Psoralea tenuiflora and Apocynum andro-
saemifolium; Steamboat Springs, July 15th (Baker). Colo-
rado Springs (Tucker).

Scolops angustatus Uhl. Det. Osborn.
The Rustic, Larimer County, August 11th (Gillette).
Scolops grossus Ubl. Det. VanDuzee.

Fort Collins, July 24th to August 18th (Baker).
Scolops hesperius Uhl.

Southern Colorado (Thomas—see Uhler, 6). Denver (Smith—see Uhler, 6).

Scolops sulcipes Say Det. Osborn.
On low ground, in suburbs of Denver, August 18th (Uhler, 5). Colorade
(Uhler, 6).
Denver, July 21st (Gillette). Fort Collins, July 24th to
August 18th (Baker). Colorado Springs (Tucker).
Cixius stigmatus Say. Det. VanDuzee.
Colorado (Uhler, 6).
Lamar, May 7th (Gillette). Big Narrows of Poudre River,
Larimer County, July 9th on Bigelovia; Steamboat Springs,
July 14th (Baker). Colorado Springs (Tucker).

HEMIPTERA OF COLORADO. 69

Cixius vicarius Walk.

Swept from weeds in west Denver, August 5th (Uhler, 5).

Oliarus franciscanus Stal. Det. VanDuzee.
Montrose, June 24th (Gillette).

Helicoptera floridae Walk. Det. VanDuzee.
Dolores, June 16th (Gillette).

Pissonotus pallipes VanD. Det. VanDuzee.
Fort Collins, August 25th (Gillette).

Stenocranus dorsalis Fitch. Det. Osborn.

Foot-hills five miles west of Fort Collins, April 25th; Fort
Collins, September 27th on Carex; Dolores, June 15th
(Gillette). Fort Collins, May 18th on alfalfa; Steamboat
Springs, July 12th on Carex (Baker).

Conomelus tricarinatus Say. Det. VanDuzee.

Manitou, June 25th; Montrose, June 24th; Glenwood
Springs, August 24th (Gillette). Steamboat Springs. July
14th (Baker).

Myndus impunctatus Fitch. Det. VanDuzee.
Montrose, June 24th (Gillette).
Myndus 0. sp. Det. VanDuzee.

Manitou, July (Tucker). Mr. VanDuzee says, “Differs from
all the species I know by the lunate pale area on the front.”

Delphacinus obesus VanD, Det. VanDuzee
Fort Collins, May Sth (Gillette).

Delphacinus zonatus VanD. Det. VanDuzee.
Manitou, June 25th; Montrose, June 24th (Gillette).

Delphacinus vittatus VanD. Det. VanDuzee.
Dolores, June 18th (Gillette).

Liburnia consimilis Van. Det. VanDuzee.
Lamar, May 7th; Dolores, June 1Sth (Gillette).

Liburnia gillettei Van ». Det. VanDuzee.

Lamar, May 7th; Dolores, June 18th; Estes Park, July
12th (Gillette).

70 PRELIMINARY LIST

TLamenia californica VanD. Det. VanDuzee.

Montrose, June 24th (Gillette).

Tylana ustulata Uhl.
Colorado (Uhler, 6).

Bruchomorpha oculata Newm. Det. VanDuzee.
Colorado (Uhler 6).
Steamboat Springs, July 26th (Gillette).

Bruchomorpha pallidipes Stal.
Swept from plants on plains near Colorado Springs, August 13th (Uhler, 5).
Colorado Springs, August (Tucker).

Stiroma inconspicua Uhl.

Moderately abundant on small bushes in Clear Creek Canon, August 6th
(Uhler, 5).

Philaenus abjectus Uhl.
Colorado (Thomas—see Uhler, 6),
Philaenus lineatus L. Det. VanDuzee.

In foot-hills near Golden, August 5th. Doubtless widely distributed
through the mountain region of Colorado (Uhler, 5). Hills and high moun-
tains (Carpenter—see Uhler, 6). Colorado (Thomas—see Uhler, 6).

North Park, July 20th; Gore Pass, July 29th; Steamboat
Springs, July 26th; Estes Park, July 16th (Gillette). La
Veta, July 4th (EK. A. Schwarz).

Clastoptera binotata Uhl. VanDuzee.

Steamboat Springs, July 26th; Leadville, August 23d
(Gillette). Steamboat Springs, July 12th on Artemisia
tridentata (Baker).

Clastoptera delicata Uhl. Det. VanDuzee.

Near Colorado Springs, sweeping rank growths of plants iv damp ground,
August 16th (Uhler, 5). Colo. (Thomas and Smith—see Uhler, 6).

Steamboat Springs, July 26th (Gillette).
Clastoptera obtusa Say. Det. Osborn.

Beaver Creek, Larimer County, August (Gillette). Fort
Collins, July 19th (R. C. Stephenson).

Clastoptera osborni 0. sp.*

*All the illustrations are magnified 22 diameters unless otherwise marked.

HEMIPTERA OF COLORADO. ral

Female: Face two-thirds wider than long, minutely, indistinctly sculptured ; clypeus
broad at base, gradually tapering to the pointed apex, one-fifth longer than broad, basal
suture obsolete; lorae long, nearly as
jong and half as broad as clypeus; genae
narrow, outer margin concave benea’h
eyes, convex below the lorae where they
are very narrow, touching the clypeus at
the broadest part; front but little longer
than broad, superiorly very broadly and
evenly rounded. Vertex very slightly
transversely depressed, anterior margin
carinately elevated, not longer at middle
than at eyes. Pronotum transversely
wrinkled, minutely scabrous, two dis-
tinct pits behind anterior margin near
the median line, thee-fourths wider than
long, anterior curvature three-eights of
length. Scutellum finely and_ trans-
versely wrinkled and minutely scabrous,
longer than head and pronotum, twice
longer than wide. Elytra with a fine,
thickly set, golden pubescence, entirely
finely, densely punctured. Color pale
rufous throughout, tinged with olive
green On pronotum and clavus, beneath
more yellowish.

Length 5.5 mm. Described from two
females. Large, but somewhat narrower
across the hemelytra than is u ual in
this genus.

Manitou, July 24th on oak (Gillette). Cheyenne Canon,
Colorado Springs, July (Tucker).

Lepyronia angulifera Uhl. Det. VanDuzee.
Howe’s Gulch, June 14th and September Ist (Gillette).
Lepyronia quadrangularis Say. Det. VanDuzee.

Canon City, and the irrigated region west of Denver, August 6th to 17th
(Uhler, 5). Colorado (VanDuzee, 6).

Fort Collins, September 27th on Solidago, Clematis ligusti-
elfolia, and Carex (Gillette). Fort Coliins, August 26th to
September 14th, on Solidago (Baker).

Aphrophora permutata Uhl.
Colorado (Uhler, 6), Colorado (Snow—see VanDuzee, 5).
Manitou Park (Snow).

Pachyopsis laetus Uhl.

At Manitou and near Canon City, upon small bushes near water August
11th to 16th (Uhler, 5). Custer County, midalpine (Cockerell, 10). Colorado
(Snow—see VanDuzee, 5). Colorado (VanDuzee, 4).

2 PRELIMINARY LIST

Pachyopsis robustus Uhl. Det. VanDuzee.

Colorado (VanDuzee, 4).

Dolores, June 18th; Estes Park, July 10th; North Park,
July 20th; Steamboat Springs, July 26th; Fort Collins,
September 27th on Bigelovia (Gillette). Mountains south-
west of North Park, on Grizzly Creek, July 10th on Artemisia
tridentata (Baker).

Bythoscopus fenestratus Fitch. Det. Osborn.
E-tes Park, July 12th (Gillette).
Bythoscopus pruni Prov. Det. Osborn.

Mountains of Colorado (VanDuzee, 4).

The Rustic, Larimer County, August 11th (Gillette).

Pediopsis hifasciata VanD.

Steamboat Springs, July 15th on willow (Baker). Mont-
rose. June 24th (Gillette).

Pediopsis erythrocephala i. sp.

Female: Largeand robust. Face nearly
as long as wide; clypeus short and broad,
suddenly broadened and widely depressed
before the rounded apex, sides parallel) on
basal two-thirds; front slightly constricted
before antennae, rapidly narrowing towards
clypeus. Clypeus, face, vertex, pronotum,
and scutellum, feebly rugose. Vertex one-
third longer at eyes than at middle, width
between eyes nearly twenty times length at
middle. Pronotum little more than twice
wider than long, curvature nearly the entire
length. Last ventral segment with hind

margin distinctly notched. Head. pronotum,
and scutellum dull red, concolorous. Elytra
hyaline. Abdomen greenish. Eyes reddish
brown. Legs greenish shading into reddish
towards base. Propleura with a large black
spot. :

Length 6 mm. Described from two fe-
males.

Fort Collins, August I1th
(Baker). Colorado Springs,
August (Tucker).

HEMIPTERA OF COLORADO. 73

Pediopsis fumipennis 0. sp.

Female: Form of bifasciata. Face little more than one-sixth wider than long;
clypeus short and broad, suddenly croadened and widely depressed before the rounded
apex, sides nearly parallel on basal two-thirds, but slightly broadening towards base;
front slightly constricted before
antennae, rapidly narrowing
towards clypeus. Front and ver-
tex finely rugose, with scattered
inconspicuous punctures. Vertex
one-fifth longer at eyes than at
middle, width between eyes nearly
eleven times length at middle.
Pronotum two and one-fourth
times wider than long, curvature
three-fourths of length, sculptur-
ing like that of front but coarser.
Scutellum finely rugose, basal
angles shagreened. Last ventral
segment with hind margin slightly
emarginate. Head, pronotum,
legs and venter green, or yellowish
green. Elytra deep smoky brown,
costal margin greenish. Propleura
without a black spot. Valves of ovipositor yellow at base, green at tip.

Length 5.5mm. Described from one female.

Steamboat Springs, July 15th (Baker).

Pediopsis sordida VanD. Det. VanDuzee.

Colo. (VanDuzee, 4).

Estes Park, July 12th; North Park, July 20th; Steamboat
Springs, July 26th; Gore Pass, July 29th (Gillette). Steam-
boat Springs, July 15th on willow (Baker).

Pediopsis viridis itch.

Canon City; Clear Creek Canon, on willow (Uhler, 5). Colorado (Uhler—see
VanDuzee, 1). Colorado (VanDuzee, 4).

Dolores, June 18th (Gillette). Fort Collins, August 11th;
Steamboat Springs, July 15th on willow (Baker). Colorado
Springs, August (Tucker). Some slightly smaller, more
yellowish specimens from Montrose, June 24th (Gillette),
we had considered distinct, but aside from these differences
there are no characters on which they can be separated.
Idiocerus alternatus Fitch.

Colorado (VanDuzee, 4). West Cliff, Custer County, July 31st; a'so high
alpine (Cockerell, 10).

Spring Canon, May 11th; Horsetooth Gulch, April 21st to
May 18th; Rist Canon, June 12th; Fort Collins, June 14th;
Estes Park, July 12th; Steamboat Springs, July 26th; Lead-

74 PRELIMINARY LIST

ville, August 23d; Trinidad, May 14th; Montrose, June 24th
(Gillette). Fort Collins, October 7th; Dixon’s Canon, May
6th; Steamboat Springs, July 15th, on willow (Baker).

A common species everywhere. There seems to be con-
siderable variation in the form of the last ventral segment
in the female.

Idiocerus amoenus VanD. Det. VanDuzee.

Colorado (VanDuzee, 4).

Horsetooth Mountain, July 4th; Steamboat Springs, July
26th: Montrose, June 24th (Gillette). On Red Stone Creek
twelve miles south-west of Fort Collins, August Ist (Baker).

Idiocerus interruptus n. sp.

Female; Face about a ninth wider than long; clypeus one-half longer than broad,

gradually broader towards the almost truncate apex, basal suture straight: lorae a litle
longer and almost as broad as the clypeus: genae rather narrow, the outer margins
straight, attaining tip of clypeus, moderately broad
below the lor: e; front o1e-fourth longer than
broad and nearly three times as long asthe clypeus.
Face, pronotum and scutellum finely shagreened.
Vertex finely, transversely wrinkled, about one-
fourth longer at the eyes than at the middle, dis-
tance between the eyes a little less than five anda
half times the length at the middle. Pronotum a
little more than twice as broad as long, and three
and a half times the length of the vertex; the
curvature a little more than two-thirds the length
of the pronotum; transverse groove of scutellum
angularly bent forward and obsolete at the center,
appearing as two oblique lunate depressions. Last
ventral segment with the hind margin shallowly
notched and the posterior angles obliquely cut off.
Color pale yellow marked with brown and black;
face mottled above with brown; eyes brown. Vertex
brown with a yellowish white line next the eyes,
and a median longitudinal white line, and a small
black spot on-either side. Pronotum brown with a
broad median longitudinal white band, anterior
margin whitish with about four small blackish spots
on either side; scutellum whitish with a large black
spot just within the basal angles on either side; a
median brown line between base and transverse
groove, forked beyond and extending nearly to the
tip: a small black spot on either side just bi fore the
ends of the transverse groove. Elytra whitish sub-
hyaline, with an oblique brown band on the middle
extending down and forward, veins brown inter-
rupted with white, a large white spot on the middle
of the clavus, with a smoky spot in front and another on the tip: all beneath uni-
colorous, legs slightly washed with rufous, propleura with a black spot. Length 5mm.

Male: Differs from female as follows: Below deeper yellow, white lines next the
compound eyes obsolete, other light marking on the vertex and pronotum yellowish, most
of the dark markings darker: front margin of anterior coxae with a large black spot, and
narrow black lines on the outer sides of all the tibiae; compound eyes jet black; black

HEMIPTERA OF COLORADO 7)

spots on propleura much larger. Length 4.75 mm.
Described from two females and one male.

Idiocerus distinctus n. sp. *

Female: Form that of asmall and slender alternatus. Facea little less than one-
eighth wider than long; clypeus two-fifths longer than broad, broadest at base; lorae a
little longer than clypeus, and two-thirds as broad;
genae rather deeply depressed beneath the eyes,
lateral margins nearly straight, attaining the tip ep
of the clypeus and broad beneath the lorae. Front /
but little longer than broad, two times as
long as the clypeus, rapidly narrowing below the
antennae; facerather coarsely shagreened. Vertex
finely transversely wrinkled, length at the middle
the same as at the eyes, width between eyes a little
less than five times the length at the middle, apex
very broadly rounded. Pronotum two times as
broad as long, three times as long as vertex, curva-
ture little more than two-thirds of the length;
slightly concave behind; disc finely transversely
shagreened, transverse groove as in interruptus.
Last ventral segment with the hind margin broadly
rounded, notched at the center, posterior angles
rounded. Color brown and white above, yellowish
beneath. Face and vertex pale yellow washed with
pale rufous. Vertex with small round black spots
on crest. Pronotum pale brown with about eight or
ten small pale bluish spots. Scutellum rufous,
dark near the posterior angles, with two small spots
on the disc, and the apex pale. Elytra white next
to stutellum and at tip of clavus deep smoky; two
or three lines on the nervures below tip of clavus,
and nervures at tip of corium, blackish. Venter
yellow. Legs pale yellow, concolorous,

Length 4.75 mm. Described from one female.

Steamboat Springs, July 15th on willow (Baker).
Fort Collins, September 26th on elm (Baker), and Septem-
ber on grass (Gillette).

Variety A. We have a single female, identical in all
respects with this species except that it is strongly suffused

*The lines drawn on the ac-
companying figure indicate
where the measurements which
are given in these descriptions
are made. For example, a-b
would be the length and c-d th
breadth of the face; a-o the
length and e-f the breadth of
the front, &c. The width of the
clypeus is always taken at its
base, and the width of the lorae
where they are widest measured
atright angles to the median line of the front. By lengthof vertex at the eye, we mean the
shortest distance across the vertex at this point. By curvature is meant the distance w-z.
The width of the front is always given where it is greatest. In Idiocerus the length of
the front is taken from base of clypeus to the ocelli.

76 PRELIMINARY LIST

with rufous throughout and has no black on the propleura.
Colorado Springs, August 3d (Gillette).

Idiocerus lachrymalis Fitch. Det. VanDuzee.

Colorado (VanDuzee, 4).

Estes Park, July 12th; Steamboat Springs, July 26th;
Rist Canon, July 30th (Gillette).

Idiocerus mimicts nh. sp.

Female: Face one-fifth wider than long, faintly shagreened: clypeus a little less
than two-thirds longer than broad, moderately broadened at the rounded apex; lorae
considerably longer and almost as broad as the
clypeus; genae moderately depressed beneath the
eyes, lateral margins straight, attaining tip of
clypeus, broad beneathlorae; front slightly longer
than broad, nearly twice as long as the clypeus.
Vertex finely transversely wrinkled, length at
middle same as next the eyes; width between the
eyes five times the length at middle. Pronotum
finely transversely shagreened, a little more than
two and one-third times broader than long, three
times longer than vertex, curvature little more
than two-thirds of the length Scutellum finely
shagreened and with the transverse groove as in
interruptus. Last ventral segment as in rufus. To mimics. x 25
Color pale yellowish brown, unicolorous except two
distinct black spots on the crest of the vertex, and
the nervures of wings and basal angles of scutellum
rufous.

Length 4.5 mm. Described from one female.
Form of alternatus but more robust.

~ Fort Collius, August 18th on black-
walnut (Baker).
Idiocerus nervatus VanD. Det. VanDuzee.

Colorado (VanDuzee, 1).

Lamar, May 7th; Trinidad, May
14th (Gillette). On Redstone Creek, twelve miles south-
west of Fort Collins, August Ist; Fort Collins, September
14th on Solidago (Baker). The dark nervures of the wings
are not a distinguishing characteristic of this species as
certain forms of pallidus also possess them.

Idiocerus pallidus Fitch.

Quite common in Clear Creek Canon, also near the South Platte and its
tributaries near Denver, and at Manitou and Colorado Springs, chiefly upon
willows, August 6th to 1Isth (Uhler,5). Mountains, June (Carpenter—see
Uhler, 6). Colorado (VanDuzee, 4).

Female: Face an eighth wider than long, finely shagreened; clypeus one-half longer
than broad, broadest near the tip where it is suddenly widened, apex rounded and broadly

HEMIPTERA OF COLORADO. rig’

depressed within; lorae as long as clypeus
and narrower than clypeus at base; genae
narrow, narrowly but rather deeply depressed
next to the compound eyes and beneath the
antennae, lateral margins almost straight,
slightly concave, not attaining the tip of
clypeus, moderately broad beneath the lorae;
front one-third longer than wide, two times
the length of the clypeus, sides below the
antennae nearly straight but rapidly in-
curved near the clypeus. Vertex minutely
transversely wrinkled, apex very broadly
rounded, length at middle slightly less than
that at the eyes, width between the eyes four
and a half times the length at the middle.
Pronotum two and five-sevenths times the
length of vertex, two and one-fourth times
broader than long, curvature five-ninths of
the length, posterior margin slightly con-
cave, disc minutely transversely rugulose.
Scutellum finely indistinctly shagreened,
transverse groove rather broadly depressed O 2
and strongly angled forward. Last ventral
segment with hind margin moderately pro-
duced at the middle, truncate, the edge
either side gently curving to the rounded
lateral angles. Color uniform pale green.
Eyes brown. Basal angles of scutellum
sometimes pale yellow. Nervures of elytra
and wings colorless. ‘p

Length 5.5-6.5 mm. Described from seven
females.

Male: With the greenish color below
much more pronounced. Spots at basal angl2s of scutellum sometimes nearly obsolete.

Lengthimm. Described from five males.

Colorado Springs August 3d (Gillette). Fort Collins
August 26th on Helianthus annuus; Steamboat Springs,
July 15th on willow (Baker). These specimens were
examined by Mr. VanDuzee and said by him to be identical
with the eastern form generally known under the name
pallidus.

Variety A. We also have numerous males and females
which correspond exactly in structure and general coloration
with this species, which have the dark wing nervures of
nervatus. Steamboat Springs, July 15th on willow (Baker).

Variety B. We have further three females which also
correspond in structure, but are quite yellowish and have
large spots within the basal angles of the scutellum black,
and the tips of the elytra smoky. Leadville, August 23d
(Gillette).

78 PRELIMINARY LIST

Idiocerus perplexus 0. sp.

Near pallidus, differing from that species as fellows: Genaesharply incurved beneath
the eyes, then rounded to clypeus, and the clypeus more broadened out towards the tip.
Last ventral segment produced on Posterter margin very much as in pallidus, but rounded
at extreme tip, not truncate. c
Color pale yellow, unicolorous
throughout. This may prove to
be only « variety of pallidus but
the specimens we have examined
seem quite distinct.

Length of female 6-7.5 mm., of
male 5.25-6 mm. Described from
two females and one male.

Fort Collins, August
26th on cottonwood,
and September 20th
ovipositing in box-elder
(Gillette). Cheyenne
Canon, Colorado
Springs, August (Tuck-
er).

We have one male of IL. perplexus.
the same structural
characters, quite dis-
tinctly greenish. Colo-
rado Springs, August
od (Gillette).

Idiocerus productus n. sp.

X a4

Male: Face as long as wide,
finely shagreened; clypeus four-
fifths longer than broad, much
widened towards the rounded
apex, basal suture curved; lorae
slightly longer and nearly as wide
as the clypeus; genae deeply de-
pressed beneath the eyes, lateral
margins straight, not attaining
tip of clypeus and narrow below
the lorne; front nearly one-half
longer than wide, alittle less than
twice the length of clypeus. Ver-
tex finely transversely wrinkled, length at middle a half longer than next the eyes, width
between the eyes little more than three times the length at the middle, apex rounded, but
the angle nearly aright angle. Pronotum slightly more than twice as wide as long and
two and one-fifth times as long as the vertex, curvature little less than five-sevenths of
the length, disc finely transversely shagreened. Scutellum finely shagreened, trans-
verse groove as in interruptus, except that it is more strongly depressed and with several
transverse wrinkles just back of it. Color yellowish below, whitish above. Crest of ver-
tex with a large black median longitudinal spot, disc whitish with a small black spot on
either side next the compound eyes. Pronotum black with the posterior margin and a
few small spots wn disc whitish. Scutellum black with more or less of the lateral margins

HEMIPTERA OF COLORADO. 79

and apex, and two small spots next the pronotum
whitish. Elytra dark smoky, nervures black, on
inner margin at middle of clavus a white spot, on
second sector of corium two small white spots, and
an indistinct whitish transverse band on the corium
just beyond the tip of the clavus. Venter blackish,
tips of basal segments and all of the last two
segments yellow. Legs sordid yellow, tibiae slightly
infuscate, femora having a black line on outer
margin, tarsi infuscate..

Length 6mm. Described from two males. Dif-
fers from all other species of the genus in the
remarkable form of the head.

Leadville, August 23d (Gillette).
Steamboat Springs, July 15th on
willow (Baker).

Idiocerus ramentosus Uhl, Det. VanDuzee.

On willows in Denver; also in Clear Creek
Canon and at Manitou (Uhler, 5). Colorado
(VanDuzee, 4).

Steamboat Springs, July 15th
(Baker). Spring Canon, May 11th
to June 30th; Estes Park July 12th;
Steamboat Springs, July 26th;
Manitou, September 29th on willow (Gillette).

Idiocerus snowi 0. sp.

Face slightly more than one-third wider than long, indistinctly shagreened, and
sparsely set with short, white, very weak hairs; clypeus slightly more than one-half
longer than broad at tip, nearly as broad at base as at apex, strongly constricted at
middle, truncate at the tip, basal suture nearly straight; lorae slightly longer and some-
what narrower than the clypeus;
genae broad, outer margin slight-
ly concave, attaining tip of cly-
peus and moderately broad below
the lorae; front as long as broad.

Vertex finely transversely rugose,
as long at middle as next eyes,
width between the eyes three
and five-sevenths times the
length at middle. Pronotum very
minutely transversely wrinkled,
with numerous fine scattered
punctures, two and one-third
times broader than long, two and
one-fourth times the length of
the vertex, curvature a little less
than two-thirds of the length.
Seutellum with the transverse ie
groove as in interruptus. Last
ventral segment with the hind
margin broadly rounded. Color
pale green, tips of tibiae, tarsiand pygofers, bluish green. Vertex with two round black

80 PRELIMINARY LIST

spots on either side near anterior edge, nearer to the compound eyes than to the median
line.

Length of female 6 mm., of male 5mm. Described from three females and two males.
Readily distinguished from pallidus by the two black spots on the vertex.

Idiocerus rufus 0. sp.

Female: Face one-fifth wider than long, finely shagreened; clypeus little less than
one-half longer than broad, broadened towards
the rounded tip; lorae a little longer and
nearly as broad as the clypeus; genae slightly
depressed beneath the eyes, the lateral margins
almost straight, attaining the tip of the clypeus,
broad beneath the lorae; front about one-fifth
longer than broad and twice the length of the cly-
peus. Vertex finely transversely wrinkled, length
at the middle thesame as at the eyes, width between
the eyes nearly four times the length at the middle.
Pronotum finely transversely shagreened, with
numerous shallow, scattered punctures, slightly
more than twice as broad as long, two and one-half
times as long as the vertex, curvature slightly less
than three-fifths of the length. Scutellum finely
shagreened, transverse groove as in interruptus.
Last ventral segment with hind margin broadly
rounded, with a narrow median notch. Color bright fe
chestnut, with the face, three small spots either
side of the pronotum, a few spots on the scutellum,
venter and all below, except the pygofers and some-
times the legs light yellowish.

Length 5 mm. Described from two females.

Form of alternatus.

Rist Canon, September 27th on
Solidago; Manitou, September 29th y
on oak (Gillette). | |

Colorado Springs, August (Tucker).

Idiocerus suturalis Fitch. Det. VanDuzee.

Colorado (VanDuzee, 4).

Spring Canon, June 380th; Estes Park, July 12th; Steam-
boat Springs, July 26th (Gillette). Steamboat Springs, July
12th (Baker). Manitou, July (Tucker).

Idiocerus verticis Say.

Upon willows at Denver, August 9th to 18th (Uhier, 5). Colorado (Van-
Duzee, 4).

Estes Park, July 12th (Gillette).
Agallia novella Say.

Colorado (VanDuzee, 4).
Agallia 4-punctata Prov. Det. Gillette.

Fort Collins, June 4th to 14th (Gillette).

HEMIPTERA OF COLORADO 8l

Agallia sanguinolenta Proy. Det. VanDuzee.
Colorado, July 19th to September 6th; Eagle River, August; Denver, June
(Carpenter—see Uhler,6). Inhabits summits of high mountains (Uhler, 6).
Fort Collins, hibernating under boards during March;
Spring Canon, March 12th under stones; Fort Collins,
October 15th; Montrose, June 24th; Dolores, June 18th
(Gillette). Fort Collins, May 16th to June 9th on alfalfa;
Steamboat Springs, July 12th,on Solidago (Baker). Colo-
rado Springs (Tucker).
Agallia uhleri VanD. Det. VanDuzee.

Fort Collins, May ¢th to October 15th, and August 15th at
electric light; foot-hills five miles west of Fort Collins, July
12th to September Ist; Colorado Springs, August 2d;
Manitou, June 25th; Lamar, May ‘th; Trinidad, May 14th;
Dolores, June 18th; Grand Junction, August 26th on sugar
beet; Glenwood Springs, August 24th (Gillette). Fort
Collins, June Sth on Sisymbrium canescens, May 16th to
July 14th on alfalfa, and July 29th on cultivated beet
(Baker).

Oncometopia costalis Fabr. Det. VanDuzee.

Widely distributed throughout the region of Colorado less remote from the
foot-hills. Extraordinarily numerous near Colorado Springs on low plants
August 18th to 17th. On low hills west of Denver, near Golden, in Clear Creek
Canon and in Manitou Park, less abundant (Uhler, 5). Larva at Boulder,
June 29th (Packard—see Uhler, 5). Colorado (Uhler, 6), Ula, Custer County,
November 12th; West Cliff, March 31st; also subalpine (Cockerell,' 10).
Manitou Park (Snow—see VanDuzee, 5).

Steamboat Springs, July 26th; Colorado Springs, August
Ist; Leadville, August 23d; Minturn, August 24th; Fort
Collins, March 20th to May 16th (Gillette). Fort Collins,
during winter hibernating under dead leaves, stones, and
boards, coming out to bask in the sun on warm bright days;
taken copulating on March 2d (Baker).

Oncometopia limbata Say.
Custer County, midalpine (Cockerell, 10), Colorado (VanDuzee, 4).
Tettigonia hieroglyphica Say. Det. Osborn and VanDuzee.

Beaver Brook Gulch, near Golden, in Denver, abundant near Colorado
Springs, at Manitou, in Manitou Park, and less common near the mouth of

$2 PRELIMINARY LIST

the canon of the Arkansas (Uhler, 6). Foot-hilis and plains, August to
October (Carpenter—see Uhler, 6).

Horse-tooth Gulch, May 18th to June 5th; Rist Canon,
May 19th to August 8th; The Rustic, Larimer County,
August llth; Steamboat Springs, July 26th; Colorado
Springs, August 3d; Manitou, June 25th to September 29th
on willow and oak; Montrose, June 24th; Dolores, June I5th
(Gillette). Fort Collins, June 13th to October 7th; on Red-
stone Creek, twelve miles south-west of Fort Collins, August
Ist, exceedingly abundant, flying up ina cloud as one walked
through the low herbage (Baker).

Diedrocephala mollipes Say.

Very abundant on grass and weeds in low spots near Denver, and near
Golden, August 5th and later in the month (Uhler, 5). Colorado (Uhler, 6).
Custer County, midalpine (Cockerell, 10).

Diedrocephala novaeboracensis Fitch. Det. VanDuzee.

Near East River, August 29th (Carpenter—see Uhler, 6). More particularly
a foot-hill and mountain spocies; Clear Creek Canon and Golden, Audust 5th
to 7th; west of Denver, August 9th (Uhler, 5). Colorado (VanDuzee, 4).

Glenwood Springs, August 24th; Steamboat Springs, July
26th; Fort Collins, September 27th on grass and Carex
(Gillette). Steamboat Springs, July 12th on Carex (Baker).
Helochara communis Fitch. Det. VanDuzee.

Very common in grassy marshy spots in the bed of the creek passing
through Denver, also in similar situations on farms west of Denver (Uhler, 5).

Fort Collins, April 7th to October 15th; Steamboat
Springs, July 26th; Dolores, June 18th (Gillette). Steam-
boat Springs, July 12th on Carex; Fort Collins and the
adjoining foot-hills, during winter, hibernating under stones
and boards (Baker). Colorado Springs, August (Tucker).
Xerophiloea peltata Uhl. Det. VanDuzee.

Clear Creek Canon, August 7th (Uhler, 5). Custer County, midalpine
(Cockerell, 10). Colorado (VanDuzee, 4).

Fort Collins, June 14th to October 15th; foot-hills five
miles west of Fort Collins, March 12th to September Ist;
Glenwood Springs, August 24th (Gillette). On Redstone
Creek, twelve miles south-west of Fort Collins, August Ist;
Fort Collins, August 26th on Helianthus annuus (Baker).

HEMIPTERA OF COLORADO. 83

Gypona angulata Spang. Det. VanDuzee,
Colorado (VanDuzee, 4).

Dolores, June 16th; Rist Canon, June 12th (Gillette.)
Gypona cinerea Uhl.
Near Manitou, August 13th (Uhler, 5).
Gypona flavilineata Fitch. Det. Osborn,
Colorado Springs, August 3d (Gillette. )
Gypona octolineata Say.

Clear Creek Canon, August 7th; Denver; Manitou, August 13th; in the
mouth of the canon of the Arkansas (Uhler, 5). Foot-hills and plains (Car-
penter—see Uhler, 6).

Kagle River and Two Elk Creek, Eagle County, September
7th (Cockerell—see Riley, in litt.).
Gypona rugosa Spang. Det. VanDuzee.
Colorado (VanDuzee, 1).

Fort Collins, September 30th (Baker). Manitou, Septem-
ber 29th, on oak (Gillettte).

Penthimia americana Fitch. Det. Osborn.

Fort Collins, May 16th (Gillette).

Acocephalus maculatus 0. sp.

Female: Face one-tenth wider than long; clypeus rectangular, once and a third as
long as broad, round-d anteriorly, narrowly depressed before apex, medially elevated on
posterior half; lorae as long and two-thirds as broad as clypeus. Entire head and scutel-
lum finely shagreened. Front about one-fifth longer than
wide, little less than two times the length of the clypeus,
with sides rectilinear and almost parallel, gradually con-
verging towards clypeus. Vertex with anterior margin
distinctly elevated, length at middle once and three-fifths
that at eyes, width between the eyes little less than two
times the length at middle. Pronotum two and one-fifth
times broader than long, once anda half the length of the
vertex, curvature three-eights of length, finely transversely
wrinkled on posterior two-thirds, finely shagreened on a) }
anterior third except on the extreme anterior margin Ne ee
which is transversely wrinkled and without punctures,
posterior margin broadly emarginate. Scutellum with a
distinct transverse groove at middle. Elytra smooth,
entirely witho't rugae. Last ventral segment with the
hind margin deeply notched. Entire body, except the
venter and elytra, black, irregularly marked with numer-
ous small light yellow spots. Eyes black margined with
reddish yellow. Ocelli rufous. Elytra black with tips
paler, small white spots along the nervures and paler areas \
between. Venter black, tip of last segment yellowish
Legs less spotted than other portions. j

A maALAiAtus
x» 22

Lengthimm. Described from two females. Tage =e
Ouray, June 22d; Dolores, June 18th wa

(Gillette).

84 PRELIMINARY LIST

Paramesus vitellinus Fitch.
(Paramesus twiningi Uhl.)

Estes Park, July 12th; Manitou, June .25th; Colorado
Springs August 3d (Gillette).

The type of twiningi isa slightly faded male of vitellinus.
In this species the second transverse nervure between the
first and second sectors of the elytra is sometimes absent.
Paraimesus jucundus Uhl.

(Hutettx gucundus Uhi.)

Manitou, August 13th (Uhler, 5). Colorado (VanDuzee, 4).

Manitou, June 25th (Gillette).
Parabolocratus viridis Uhl. Det. VanDuzee.

Near Golden, and on highlands west of Denver. Apparently rare (Uhler, 5).
Colorado (VanDuzee, 4),

Lamar, May 7th; Dolores, June 18th; Rist Canon, June
I3th (Gillette). Fort Collins, July 29th (Baker).
Platymetopius acutus Say. Det. VanDuzee.

Manitou, August 13th, swept from herbage near Fountain creek (Uhler, 5).

Rist Canon, June 12th to August Sth; Fort Collins, Sep-
tember 27th on Rhus trilobata; Steamboat Springs, July 26th;
Manitou, July 24th on Clematis, and September 29th on oak:
Grand Junction, August 26th on sugar beet (Gillette). Fort
Collins, August 18th; Steamboat Springs, July 14th (Baker).

Deltocephalus affinis n. sp.

Female: Face one-seventh wider than long; clypeus one-third longer than broad,
somewhat more than one-half the length of the front, gradually narrowing to the
rounded apex, basal sutures nearly straight; lorae subovate, as long and one-half as
broad as the clypeus, genae broadly obtusely angled below the eye, rather broader than
usual below the lorae, attaining the tip of the clypeus; front one-seventh longer than
wide, gradually narrowing to clypeus, superior angle aright angle. Face and anterior
half of vertex finely shagreened. Vertex one-
half longer on the middle than at the eyes, width
between the eyes once anda fourth the length at
the middle, disc with the two depressed areas
near the hind margin. Pronotum two and one-
fourth times wider than long, but little longer
than the vertex, curvature three-fifths of the
length, posterior margin very slightly concave,
anterior third glabrous with two distinct pits
near the median line, posterior two-thirds indis-
tinctly rugose. Scutellum as usual, transverse
groove quite indistinct. Elytra barely exceed-
ing abdomen. Last ventral segment with the
hind margin very deeply and broadly notched:

)

HEMIPTERA OF COLORADO. 85

posterior angles subacute and somewhat inclined towards the center. Color pale ashy
green. Face slightly dusky with indistinct lighter transverse lines above. Genae with a
small black spot near the loral suture. Vertex and pronotum concolorous, with a broad
light median stripe and a dark stripe on either side, on the vertex the median light stripe
with a median dark line. Scutellum darker on the disc. Elytra ashy subhyaline with a
few faint fuscous markings aiong the middle of the disc and on the median portion of the
clavus. Venter pale yellowish. Legs pale yellow.
Length 3.25mm. Described from one female. Related to melsheimeri.

Leadville, August 23d (Gillette).

We have also a single male which probably belongs to this species. It differs from
the female as follows: Front one-fourth longer than wide, two and a haif times as long
as the clypeus. Face darker on discs of clypeus and genae, front very light chocolate
brown, the light transverse lines above distinct. Elytra with costa and veins more dis-
‘ttinctly yellowish, the apical cells faintly margined with fuscous. Venter black. Legs as
in monticola.

Length 3.6mm. Described from one male.

Estes Park, July 12th (Gillette).

Deltocephalus argenteolus Uhl.

Quite common on willows at Colorado Springs and near Manitou (Uhler,
5). Colorado (VanDuzee, 4),

Deltocephalus auratus 0. sp.

Female: Face an eleventh wider thanlong. Clypeus about a third longer than wide,
gradually narrowed to the rounded apex. Lorae subovate, as long as the clypeus and
half as broad. Genae broadly and very obtusely angled, attaining the end of the clypeus.
Front one-eighth longer than wide, about two times
the length of the clypeus, sides nearly straight,
rapidly narrowing to the clypeus below, superior
angle rather strongly produced and rather more
than aright angle. Face and anterior third of ver-
tex finely shagreened. Disc of vertex with a de
pressed area on either side next the compound eye,
length at middle once and a half that next the eye,
width between eyes once and a seventh times the
length at middle. Pronotum twice wider than long,
as long as vertex, curvature two-thirds of length,
with the glabrous anterior margin somewhat
elevated, posterior margin slightly concave, pos-
terior three-fourths obscurely rugose and sparsely
and indistinctly punctate. Scut2llum broader than long, very minutely sculptured.
Last ventral segment with the hind margin deeply and broadly notched, posterior angles
rounded. Color pale yellow throughout. Tip of rostrum, eyes, spots at bases of tibial
spines, and ungues, black. Ocelli rufous. Elytra exceeding abdomen by somewhat less
than one millimeter, yellowish subhyaline, nervures lighter.

Male: Differs from female as follows:—Color deep golden yellow. Elytra yellowish
subhyaline, nervures and costa bright yellow. Genital organs below tipped with black.

Length 3.25mm. Described from two males and one female.

Fort Collins, June 14th (Gillette). Steamboat Springs,
July 15th (Gillette).

Deltocephalus bilineatus 0. sp.

Face a twelfth wider than long; clypeus long and narrow, one-half longer than broad,
nearly one-half as long as the front, sides parallel, apex rounded, basal suture straight;
lorae subovate, nearly as broad and long as the clypeus; genae very broadly and obtusely
angled outwardly, attaining the end of the clypeus; front two-fifths longer than wide,

S6 PRELIMINARY LIST

sides rectilinear, gradually narrowed towards theclypeus, superior angle rather Jong, and
more than a right angle. Face and vertex finely
shagreened. Disc of vertex with two distinct pits near
the eyes, nearer to the eyes than to each other, length
at middle a half longer than that next the eye, width
between the eyes equal to the length at middle. Pro-
notum twice as wide as long, one-seventh longer than
the vertex, curvature four-ninths of the length, pos-
terior margin very slightly concave, anterior one-
fourth glabrous, posterior three-fourths transversely
subobsoletely wrinkled and with scattered indistinct
punctures. Scutellum broader than long, shagreened
more coarsely than the face. Last ventral segment
with the hind margin broadly and deeply notched, the
sides of the notch slightly sinuated. Color ashy gray
sometimes tinged with fuscous. Face light yellow to
dusky, the sutures sometimes darker. Two broad dark longitudinal lines extending over
vertex and pronotum, these bands on the anterior two-thirds of vertex bordered inter-
nally with black, and adjoined externally by a black spot. Vertex with a fine
black median line on the p>sterior two-thirds. scutelium varying from brown-marked
to black. Elytra little longer than the abdomen, whitish, nervures white throughout,.
bordered with dusky or testaceous, apex with three black spots, one internally and two:
externally, each elytron with seven white spots, two on the external apical border, two in
the center, one large one basally and two on the internal border of theclavus. Venterlight
to dark yellow, sometimes bordered with blackish, the last segment with black spots on
the sides of the notch. Legs yellow, tibial spurs arising from black spots, posterior tibiae
black tipped internally.

Length of female 4 mm., of male 3.5 to 3.75 mm. Described from four males and three
females.

Steamboat Springs, July 12th on Carex (Baker).

Deltocephalus bimaculatus 0D. sp.

Female: Face about as long as wide; clypeus short and broad, one-seventh longer
than broad, not quite half as long as the front, gradually narrowing towards the rounded
apex, basal suture straight: lorae subovate, two-fifths as wide and nearly as long as the
clypeus; genae broadly rounded outwardly, attaining the end of the clypeus; front one-
| Saquypeaem

S

~

eighth longer than wide, sides almost
straight, superior angle nearly a right
angle. Face and vertex roughly sha-
greened. Disc of vertex slightly trans-
versely depressed, length at middle once
and a half that next the eye, width be-
tween eyes once and two-sevenths the
length at middle. Pronotum two times
wider than long, length slightly less than
that of vertex, curvature nearly one-ha f
of length, pesterior margin very slightly
concave, anterior fourth glabrous, pos-
terior three-fourths very finely trans-
versely wrinkled. Hind margin of last
ventral segment with a broad short tooth,
on either side of which is a shallow notch, Z
posterior angles rounded, obtuse. Pale yellowish green. Face with sutures black, four
or five transverse black dushes on either side of the front above, which may run together
form'ng a longitudinal band just within the margin. Vertex with two large oval black
spots on the apex nearer the center than the eyes. Elytra greenish, subhyaline. Tergum
black. Venter black with lateral and apical margins of segments yellowish. Ovipositor
black, pygofers more or less streaked with black longitudinally. Legs light yellow.

Male: Differs from the female as follows: Front without black markings except in
some specimens u spot on either side beneath antennae. Front two and a half times as

HEMIPTERA OF COLORADO. S7

long as the clypeus. Sutures, other than those bounding the front, lighter. A small black
spot on either pygofer.

Length of female 4.5 mm.,of male 4 mm. Described from three females and ten
males

Kstes Park. July 12th (Gillette). Steamboat Springs, July
138th on Carex and willow (Baker).
Deltocephalus concentricus VanD. Det. VanDuzee.

Mountains of north-western Colorado (Gillette—see VanDuzee, 3). Colo-
rado (VanDuzee, 4).

North Park, July 20th (Gillette).

Deltocephalus configuratus Uhl. Det. Osborn.
Steamboat Springs, July 14th (Baker).

Deltocephalus debilis Uhl. Det. VanDuzee.

Sides of high mountains, and near Fair Play, South Park, July (Carpenter—
see Uhler, 6). Colorado (VanDuzee, +).

Horsetooth Gulch, June 5th; North Park, July 20th;
Steamboat Sprinys, July 26th; Estes Park, July 12th; Gray-
mont, July 16th (Gillette). Steamboat Springs, July 15th on
Carex and Solidago (Baker).

Deltocephatus flavo-virens 0. sp.

Face one-seventh wider than long: clypeus one-fourth longer than broad, about
three-fifths the length of the front, gradually narrowing to the rounded apex, basal
suture slightly convex; lorae subovate, nearly as loag and about one-half as
broad as the clypeus; genae broadly rounded at the sides, attaining the apex of the
clypeus and broad below the lorae; front nearly as wide as long, sides straight past

ae the antennue, narrowing to the clypeus be-
low, superior angle considerably more than a
right angle. Face and anterior margin of
vertex finely shagreened. Disc of vertex
rather strongly depressed on posterior half,
length at middle about once anda half that
next the eyes, width between the eyes about
one and athird times the length at middle.
Pronotum nearly twice wider than long,
about one and a fourth times the length of
the vertex, curvature four-sevenths of the
length, posterior margin very slightly con-
cave, anterior fourth glabrous, posterior
three-fourths very faintly transversely
wrinkled. Scutellum faintly scabrous. Last
ventral segment with the hind margin greatly produced at the center, ending in two short
acute points. Color greenish yellow. Face smoky with lighter concentric lines above,
sutures of the front black. Vertex yellow, ocelli with a very small black spot on the sides
next the eyes. Pronotum greenish yellow, darker on the disc. Scutellum im-
maculate. Elytra yellowish hyaline, nervures yellow. Basal segments of venter with
apical and lateral margins narrowly yellowish, the apical segments yellow, the last one
with the produced part black. Ovipositor black, pygofers very hairy. Legs yellow, ex-
cept small black spots at base of tibial spines.

Length, female, 4.75 mm., male, 4.25mm. Described from one male and one female.

+o

x

——

D Jlavo-virens.

88 PRELIMINARY LIST

Steamboat Springs, July 12th on Carex (Baker).
Deltocephalus melsheimeri Fitch. Det. VanDuzee.

Colorado (VanDuzee, 4).

Fort Collins, June 4th to October 15th; Horsetooth Gulch,
June dth; Rist Canon, April 25th to June 12th; North Park,
July 20th; Steamboat Springs, July 26th; Lamar, May 7th;
Minturn, August 24th; Montrose, June 24th; Dolores, June
18th (Gillette). Fort Collins, May 16th to June 13th on
alfalfa; Steamboat Springs, July 12th on Carex and Solidago
(Baker).

Deltocephalus monticola n. sp.

Female: Face nearly as long as wide; clypeus nearly as broad as long, slightly more
than three-sevenths the length of the front, rapidly narrowing to the rounded apex,
basal suture straight; lorae subovate, nearly as long, and two-fifths as broad as the cly-
peus; front one-sixth longer than wide, sides nearly
straight above, superior angle obtuse, more than a right
angle. Face and anterior half of vertex finely shagreened.
Disc of vertex flat, length at middle once and two-thirds
that next the eye, width betweeen the eyes one-fifth more
than the length at middle. Pronotum two and one-eighth
times wider than long, length about the same as that of
the vertex, curvature about three-fifths of the length,
posterior margin very slightly concave, smooth on the
anterior third, posterior two-thirds feebly rugose. Scutel-
lum minutely sculptured. Elytra scarcely exceeding the

TD. monticola abdomen. Hind margin of last ventral segment with a
See large median tooth, posterior angles strongly produced,
swollen, rounded and somewhat exceeding the tooth.
Color yellowish green, about the same as in melsheimeri.
Face smoky with concentric broken light lines above.
Disc of clypeus, margins of lorae, and genae next the eyes,
darx brown. Vertex light, with four short oblique black
dashes on the apex. Pronotumdarkenedon thedise. Ely-
tra pale greenish subhyaline, nervures lighter. Venter
except last segment, with apical and lateral margins of the
segments yellow. Last ventral segment yellow at thesides and black on the disc. Oviposi-
tor black, pygofers yellowish green and slightly streaked with black. Legs yellowish,
anterior and middle femora spotted and annulated with black. Posterior femora with a
black line down the outside. Tibiae more or less spotted with black.

Length 3mm. Described from one female. Near melsheimeri.

Leadville, August 28d (Gillette).
Deltocephalus sayi Fitch. Det. VanDuzee.

Colorado (VanDuzee, 4).

Fort Collins, July 4th (Gillette). Steamboat Springs,
July 14th (Baker).
Deltocephalus sexmaculatus 0. sp.

Female: Face nearly as long as wide; clypeus about a fourth longer than broad, half
as long as the front, considerably narrowed towards the rounded apex, basal suture

HEMIPTERA OF COLORADO. 89

straight; lorae large, subovate, as long and one-half as broad as the clypeus; genae
unusually narrow, narrow below the lorae and attaining the tip of the clypeus. Front
two-ninths longer than wide, broad below, the superior angle more than a right angle.
Face and anterior third of vertex coarsely shagreened. Disc of vertex deeply depressed,
length at middle once and about two-thirds that next the eye, width between the eyes
once and a fifth the length at middle. Pronotum two and one-
sixth times wider than long, length slightly less than that of the
vertex, curvature about one-half of the length, posterior margin
slightly concave, anterior fourth glabrous, posterior three-fourths
obscurely transversely wrinkled with scattered feeble punctures.
Scutellum finely scabrous. Last ventral segment with the hind
margin very broadly and deeply emarginated, the emargination
nearly rectangular at the bottom, posterior angles obliquely slop-
ing backward. Color ash gray, head and pronotum tinged with
rufous. Face black, clypeus with one median and two lateral
light spots, lorae with one median light spot, and genae with a
transverse light spot next the lorae. Front with about six short Dp. sexmaculatus
transverse light lines on each side. Eyes black. Vertex with two
large black spots posteriorly, in front of these two smaller black
spots on either side, the anterior ones extending nearly to the
crest of the vertex. and a narrow median line not attaining
the apex. Pronotum dusky rufous. Scutellum with four large
black spots on the disc. Elytra scarcely exceeding the tipof the
abdomen, pattern of coloration the same as in bilineatus, white
spots at base very small. Venter dark, marked with yellowish. NS
Legs yellowish, coxae and basal half of anterior and middle
femora blackish, posterior femora with a longitudinal black stripe beneath. Tibiae
all dark with a longitudinal yellowish stripe on the outer margin. Tarsi blackish.
Length 2mm. Describedfromone female. Readily separated from weedi by the form
of the last ventral segment in the female.

Leadville, August 25d (Gillette).

Deltocephalus signatifrons VanD. Det. VanDuzee.

Colorado (VanDuzee, 4).

Fort Collins, July 2d on beans; Horsetooth Gulch, June
5th; Estes Park, July 12th; Steamboat Springs, July 26th;
Lamar, May 7th; Trinidad, May 14th; Montrose, June 24th
(Gillette). Fort Collins, May 16th on alfalfa; Steamboat
Springs, July 14th (Baker).

Deltocephalus unicoloratus 0. sp.

Female: Differs from the female of auratus as follows: Face one-twentieth longer
than wide; clypeus nearly as wide as long and rapidly narrowing to the rounded tip;
front one-fifth longer than wide and two times as long as the clypeus. Vertex greatly
produced, the angle in front slightly less than
a right angle, once and two-thirds as long at
the middle as next the eyes, width between
the eyes the same as the length at the middle,
with a narrow black median line on the pos-
terior two-thirds. Ocelli jet black, margined
on the side towards the eyes by a small black 4
spot. Hind margin of last ventral segment
truncate with a median, slightly sunken,
obtuse tooth, the immediate region of the tooth thin and coriaceous, posterior angles
obtuse Color light lemon yellow.

90) PRELIMINARY LIST

Length 3.25 mm. Deseribed from one female. Distinctly separated from auratus by
the last ventral segment and by the proportions of the head.

Pleasant Valley, six miles north-west of Fort Collins, June
12th (Gillette).
Deltocephalus vanduzei 0. sp.

Female: Face one-ninth wider thanlong; clypeus two-fifths longer than broad, three-
fifths the length of the front, gradually narrowing to a rounded apex; lorae subovate
nearly as long and two-thirds as wide as clypeus; genae normal except the outer margin
which is strongly obtusely angled, attaining the end of theclypeus. Front as long as
wide, sides below the antennae rapidly narrowing to the clypeus,
superior angle more than a right angle, obtusely rounded. Face and
vertex coarsely shagreened Disc of vertex slightly convex, sloping
tc the margins, length at the middle once anda half that next the
eye. Pronotum two and a fourth times wider than long, an eighth
longer than the vertex, curvature halfof the length, posterior margin
slighly concave, anterior fourth finely scabrous and elevated, pos-
terior three-fourths very finely transversely wrinkled, disc with two
small distinct pits near the anterior margin. Scutellum finely sca-
brous. Hind margin of last ventral segment with a broad deep median
notch, posterior angles rounied. Color dark smoky above, black be-
low. Eyes black. Face black, above with a row of transverse light
dashes on either side, genae mostly margined with yellowish. Vertex
yellow with two large black spots behind the apex which is margined
with black, a broad black transverse me liun band, produced posteri-
orly at the sides to near the hind margin, running between ocelli and
along the margins of the eyes, and two bluck spots on either side
within the hind margin near to each other, posteriorly a dark median
longitudinal line. Ocelli black on a circular yellow field. Pronotum dark yellowish
sinoky, anteriorly with a black spot near the median line, and laterally, near the anterior
margin, two elongate black dashes. Scutellum with a median spot and two spots within
the basal angles black, extreme posterior point jet black. Elytra smoky, nervures
lighter, narrowly margined with darker. Venter black. Legs black, extreme tips of
coxae, distal half of anterior and extreme tips of middle and posterior femora yellow.
anterior tibiae yellow, infuscated; middle tibiae yellow annulate with black, hind tibiae
black with spines yellow, tarsi ail dark.

Male: Differs from female as follows:—Clypeus somewhat longer. Yellow markings
on the face much heavier, a small yellow spot on the median line of the front near the
clypeus, also two on the clypeus near the basal angles. The parts of the transverse band
near the apex of the vertex of the female are here separated as two large rectangular black
spots

Length of female, slightly exceeding 2.5 mm., of male 2.5mm. Described from one
male and one female. Near weedi.

Leadville, August 24th (Gillette).

iv)

HEMIPTERA OF COLORADO 91

Allygus coloradensis Ni. sp.

Male: Clypeus less than twice as long as broad, constricted in the middle, nearly as
broad at apex as at base, half as long as the front, basal suture somewhat curved; lorae
subovate, as long and as broad as theclypeus; genae gently and evenly rounded at the sides
and attaining the tip of the clypeus: front a fifth longer than wide, sides inwardly curved
at the antennae, narrowed towards the clypeus, superior
angle very obtuse; face and anterior margin of vertex
finely shagreened. Disc of vertex slightly transversely
depressed, length at middle nearly once and a half that
next the eyes; pronotum broadly rounded in front, dis-
tinectly concave behind, twice as broad us long, posterior
A. coloradensis angles very broadly rounded, opaque, not distinctly
sculptured. Scutellum broader than long, transverse
suture arcuated. Color dull smoky yellow; eyes dark;
face somewhat smoky with narrow concentric light lines
above: on genae at middle of loral suture a small black
spot; vertex smoky yellow mottled with darker shades;
two small black spots within hind margin near compound
eyes and a narrow black median line; pronotum with
anterior fourth lighter, and with four short black dashes
on either side, posterior three-fourths heavily and some-
what transversely mottled with dark; scutellum yellowish
with basal angles and transverse grwove blackish; elytra
subhyaline, nervures dark brown, clavus with cells mot-
tled with blackish and with three distinct pearly white
spots on the inside margin, two more indistinct ones on the
outside; disc of elytra with scattered black mottling
within the cells; transverse veins on costal margin broadly
black; elytra pearly, wings brilliantly iridescent; venter
yellow with apical margins of segments black; legs light yellow, anterior coxae with a
large black spot on anterior portion, anterior femora with numerous small black spots;
tibiae with spines arising from black spots, posterior tarsi annulate with black.

Length 4mm. Described from one male.

Glenwood Springs, August 24th (Gillette).
Athysanus anthracinus VanD. . Det. VanDuzee.
Colorado (VanDuzee, 4).

Montrose, June 24th (Gillette).

Athysanus artemisiae 0. sp,

Female: Clypeus one-half longer than broad, broadly and shallowly depressed below
‘the middle, sides nearly parallel, tip truncate; lorae about as long but not quire as broad
as the clypeus; genae broad, scarcely depressed beneath the eyes, outer margin broadly

angled, attaining the tip of the clypeus and f
\

broad beneath the lorae; front one-fifth
longer than broad, superior angle rounded
and more than a right angle, face and ante-
rior half of vertex finely shagr+ened; eye
with a narrow and acute ewarginatlion with-
in near the antennae; disc of vertex not de-
pressed, sloping at sides, length at middle
onceand a half that at eyes. Pronotum with I
two small approximate pits near the an erior
margin, posterior two-thirds very indistinctly
transversely wrinkled; scutellum finely sha-
greened; hind margin of last ventral segment
with posterior angles broadly rounded, slight-
ly produced, with a rather large narrow
notch having at its center a small blunt
tooth. Color black; front with about six

A artemisias

92 PRELIMINARY LIST

narrow transverse yellowish lines on either side; clypeus with a small yellow spot on
either basal angle; genae laterally margined near the eyes with yellow. Vertex witha
broad transverse band on the posterior margin between the eyes, and a narrow band
along anterior margin of vertex yellow, the latter having three black spots upon it, one
at the middle and one at either end. Pronotum and scutellum yellowish, indistinctly
mottled with black; elytra dark smoky with the nervures and central portions of cells
paler; abdomen black; legs black, knees and tibiae yellowish, the tarsi streaked with
black.
Length 3mm. Described from one female.

On Grizzly Creek, in mountains south-west of North Park,
July 10th, on Artemisia tridentata (Baker).

Athysanus comma VanD. Det. Osborn.

Fort Collins, July 4th (Gillette), and July 24th to August
18th (Baker).

Athysanus curtipennis 0. sp.

Female: Clypeus about one-fourth longer than broad, transversely depressed before
the tip, sides nearly parallel, apex truncate, basal suture slightly curved; lorae as long
and nearly one-half as broad as the clypeus; genae broad, strongly depressed beneath the
eyes, outer margin broadly and
evenly rounded, attaining tip of
clypeus and rather broad beneath
the lorae; front one-eighth longer
than broad and twice the length
of the clypeus; superior angle
broadly rounded; face finely sha-
greened. Disc of vertex smooth
and shining, broadly transversely
depressed on posterior half, length

\ RR RIOT So ot eae a
at middle once and one-third that

\ ———

ee
=

at eyes. Pronotum short and <a

broad, somewhat shorter than the a -

vertex, anterior one-fourth very ‘a Edi

finely rugose, posterior three- va

fourths rather coarsely rugose '

with broad scattered punctures. j

Scutellum very small, shorter than

pronotum, transverse groove wanting. Elytra subquadrate, as broad as long, not attain-
ing the tip of the second segment. Hind margin of last ventral segment with posterior
angles long and subacute, entire central portion between the angles wanting; ovipositor,
beneath, half the length of the whole body; valves a third longer than pygofers, the latter
with a row of short stout spines, the former with numerous fine hairs near the tip. Color
pale yellowish with dark markings; front with several short transverse darker lines on
either side, lower angles each with a black spot; vertex with a large black spot on either
side at crest and a small black spot at the apex; disc of vertex with two large black spots
near the middle and with a narrow black line next the compound eyes; pronotum almost
concolorous, a rather distinct dark spot just back of the compound eye and another out-
side of the basal angle of the scutellum, two minute approximate black spots close to
anterior margin; scutellum concolorous; elytra with about four longitudinal dark lines
on corium between the nervures; tergum with three longitudinal black bands on either
side, outer ones narrow, inner broadest and containing a row of irregular pale green
spots; venter with middle portion of three basal segments black; pygofers with two black
lines on sides, valves black, margins brown; legs coucolorous.
Length5mm. Described from one female.

Colorado Springs, August 3d (Gillette).

HEMIPTERA OF COLORADO. 93

Athysanus gammaroides VanD. Det. VanDuzee,
Colorado (Gillette—see VanDuzee, 3). Colorado (VanDuzee, 4),

Foot-hills, five miles west of Fort Collins, April 25th
(Gillette).

Athysanus instabilis VanD. Det. VanDuzee..

Colorado (VanDuzee, 4).

Steamboat Springs, July 26th; Leadville, August 23d
(Gillette).
Athysanus plutonius Uhl.

Clear Creek Canon, August 6th (Uhler, 5). Colorado (VanDuzee, 4).
Athysanus relativus 0. sp.

Near obsoletus. Female: Clypeus fully one-third longer than broad, sides nearly
parallel, apex nearly truncate; lorae as long and nearly as broad as clypeus; genae
broad, slightly depressed, outer margip broadly ty
rounded, attaining tip of clypeus and moder- | sai hel
ately broad beneath the lorae; front as long as
broad, less than twice as long as the clypeus,
superior angle rather sharply rounded; face and
anterior third of vertex rather coarsely shagreened,
posterior two-thirds of vertex medially longitudi-
nally wrinkled; disc of vertex nearly flat, at middle
nearly two-thirds longer than at the eyes. Prono-
tum smooth on anterior third, transversely wrinkled
on posterior two-thirds, width more than twice the
length, anterior margin broadly rounded, posterior
rather strongly concave, posterior angles rounded,
sides feebly carinated. Scutellum coarsely sha-
greened, transverse groove curved forwards. Hind
margin of last ventral segment with posterior
angles produced, acute, with a broad shallow me-
dian notch, having a short blunt tooth at the center.
Color pale sordid yellowish; face with six smoky
transverse lines on the front; vertex unicolorous;
pronotum without distinet marking; scutellum with
two small, more or less distinct, darker spot- near
base: elytra with nervures whitish, areoles more or
less distinctly broadiy margined with fuscous or
blackish; venter yellow; lateral margins and apex
of last ventral segment black; legs nearly concolor:
ous, spots at bases of tibial spines black, tarsi infus-
cate. Length 5mm.

Male: Clypeus a little narrower than in female:
venter sometimes almost entirely black.

Described from two females and one male,

Fort Collins, September 27th on grass (Gillette).
*Athysanus 6-vittatus VanD. Dat. Van Duzee..

Colorado (VanDuzee, 4).

*In Trans. Amer. Ent. Soc, XIX, Mr. VanDuzee separates Athysanus on ‘‘Elytra short,
without an appendix,” giving no exceptions. In his arrangement of the species of the

94 PRELIMINARY LIST

Acinopterus acuminatus VanD. Det. VanDuzee.
Colorado (VanDuzee, 4).

Steamboat Springs, July 26th (Gillette).

Scaphoideus immistus Say. Pet. VanDuzee.
Fort Collins, August 18th, on black walnut (Baker).
Phlepsius cinereus VanD. Det. VanDuzee.

Colorado (VanDuzee, 4).

Fort Collins, August 25th (Baker).
Phlepsius excultus Uhl.

Denver, August 18th; Pueblo (Uhler, 5). Colorado (VanDuzee, 4).
Philepsius irroratus Say.

Suburbs of Denver and Valley of the Arkansas (Uhler, 5).

Phlepsius ovatus VanD. ; Det. VanDuzee.

Colorado (VanDuzee, 4).

Horsetooth Gulch, ten miles south-west of Fort Collins,
April 25th to May 15th; Rist Canon, eight miles north-west
of Fort Collins, June 18th; Dolores, May 18th (Gillette),
Fort Collins, October 7th; foot-hills five miles west of Fort
Collins, during the winter hibernating under stones (Baker).
Thamnotettix atridorsum VanD. Det. VanDuzee.

Colorado (VanDuzee, 4).

Spring Canon and Dixon’s Canon, June 30th; Montrose,
June 24; Dolores, June 18th (Gillette ).

Thamnotettix belli Uhl. Det. VanDuzee.

Manitou (Uhler, 5). Colorado (VanDuzee, 4).

Fort Collins, May 8th; Soldier Canon, five miles west of
Fort Collins, May 19th; Estes Park, July 11th; North Park,
July 20th; Steamboat Springs, July 26th; Trinidad, May
14th; Silverton, June 20th; Ouray, June 22d; Dolores, June
18th (Gillette). Fort Collins. May 18th to August 18th on
alfalfa and July 29th on cultivated beet; Horsetooth Gulch,

genus in Can. Ent. XXV, p. 285, one division is stated as having “longer elytra with well
developed appendix.’ It would seem that in the former paper the genus is properly
characterized while, between those species which have elytra as long as abdomen or
longer and with a well developed appendix, such as anthracinus, bicolor, striatulus,
instabilis and obtutus, and some species of the genus Thamnotettix, we find no good
generic differences.

HEMIPTERA OF COLORADO. 95

ten miles south-west of Fort Collins, May 21st; mountains
south-west of North Park on Grizzly Creek, July 10th, on
Artemisia tridentata; Rabbit Ears Pass, Routt County, July

20th; Steamboat Springs, July 12th,on Artemisia tridentata
(Baker).

Thamnotettix citrinifrons nN. sp.

Face one-ninth longer than broad; clypeus two-thirds longer than broad, constricted
at the sides, widened near the apex, basal suture curved; lorae as long and nearly as
wide as the clypeus; genae very slightiy depressed be!ow the eyes, feebly rounded at
the sides, attaining the tip of the clypeus, moderately wide —
below the lorae; front one-fourth longer than broad, once and Wt has.
three-fourths the length of the clypeus, gradualiy narrowing (aN =
below, superior angle very obtusely and evenly rounded. Face ea
and anterior one-half of v2rtex finely shagreened. Dise of ver- 3, NOE Os
tex slightly depressed, length at middle but little more than at WES ats
the eyes, width between the eyes two and one-fifth times the bee a
length at middle. Pronotum about twice wider than long, length \
about twice that of the vertex, curvature five-ninths of the length,
slightly concave behind, sides short and not carinated. Scutel-
lum shagreened. Color yellow and deep smoky. Face, anterior
and middle legs, and posterior femora, deep yellow. Vertex yel-
low with a transverse black band not attaining the eyes. Prono-
tum dark smoky, the tip tinged with yellow. Elytra smoky sub-
hyaline, nervures darker. Tergum and venter black with nar-
row lateral and apical margins yellow. Posterior tibiae and tarsi
dark smoky yellow. Sternum black.

Length 4.5mm, Described from one ma‘e.

Leadville, August 23d (Gillette).

Thamnotettix caricis 0D. sp.

Tt vbr frome.

Female: Face somewhat more than one-eighth wider than long; clypeus about one-
fourth longer than broad, gradually narrowed to the rounded apex, basal suture nearly
straight; lorae one-half as wide and nearly as long as the clypeus; genae broad, hardly
depressed beneath the eyes, outer margin evenly rounded, attaining the tip of the clypeus
but much wider below the lorae than in longula; front one-eighth longer than broad, twice
the length of the clypeus, gradually narrowing below, superior angle obtuse and broadly
rounded. Face and anterior third of vertex finely shagreened. Disc of vertex flat, slop-

ing, length at middle once and three-fifths that at eyes, width between eyes a third
greater than the

length at middle.
Pronotum two times
wider than long, the
length once and a
third that of the ver-
tex, curvature three-
fifths of length,
finely transversely
wrinkled and with|
scattered shallow
punctures on the posterior three-fourths, hind margin very slightly concave, sides short
and not carinated. Scutellum coarsely shagreened. Hind margin of last ventral seg-
ment with the posterior angles produced, medially but little produced, with two blunt,
short and broad, black teeth. Color pale yellowish green. Face slightly dusky with
in distinct transverse lines on either side of the front. Vertex pale yellowish with a

96 PRELIMINARY LIST

median dark line on the posterior three-fourths, and a small more or less distinct dark spot
on either side of the zenter close to the posterior margin. Ocelli black. Pronotum greenish
on the disc, the margin yellowish. Scutellum yellow. Elytra hyaline, nervures more or
less yellow. Venter and eyes pale yellow. Tibial spines arising from black spots, tips of
the tarsi infuscate.

Male: Face, vertex, venter, and legs sulphur yellow.

Length of female, 4.25 mm., of maie4mm. Described from four males and one female.

Steamboat Springs, July 12th on Carex (Baker).
Thamnotettix clitellaria Say.

Custer County, midalpine (Cockerell, 10).

Thamnotettix emarginata N. sp.

Face one-seventh wider than long; clypeus one-half longer than broad. sides parallel,
apex rounded, basal suture nearly straight; lorae as long as the clypeus and two-thirds as
broad; genae strongly depressed below the eyes, the outer margin strongly obtusely
angled, attaining the tip of the clypeus, very narrow be-
low the lorae; front one-fourth longer than broad, once
and three-fifths the length of the clypeus, gradually nar-
rowing below, rapidly near the clypeus, the superior
angle broadly rounded. Face and anterior half of vertex
finely shagreened. Eye distinctly and narrowly emargi-
nate within at the antennae. Disc of the vertex flat,
length at the middle once and a third that at the eyes,
width between the eyes one and four-fifths times the
length. Pronotum twice wider than long, the length once
and three-fifths that of the vertex, curvature one-half of
the length, indistinctly transversely wrinkled posteriorly,
hind margin concave, sides short and very feebly cari-
nated. Scutellum finely rugose, transverse groove curved
forward. Color pale greenish yellow. Face pale yellow
with a small speck on the genae next the lorae and a large
spot beneath the antennae, black. - Front slightly infus-
cate, with about six pale dashes on each side. Vertex yel-
low with a large dark spot near the compound eyes just
within the hind margin. Pronotum yellow, disc darker.
Secutellum unicolorous. Elytra smoky subhyaline, veins
yellowish basally, smoky apically. Venter yellow, with the
. middle basal portion and narrow lateral margins of each
segment, black. Pronotum and meso-sterna black. Legs yellow, bases of tibial spines
and tips of tarsi blackish.

Lengthimm. Decribed from one male.

Steamboat Springs, July 26th (Gillette).

Thamnotettix flavicapitata VanD. Det. VanDuzee,

Colorado (VanDuzee, 4).
Steamboat Springs, July 26th ( Gillette).

Thamnotettix favomarginata N. sp.

Face one-fourth wider than long; clypeus one-half longer than broad, sides concave,
apex obbusely rounded, basal suture nearly straight, lorae subovate, three-fourths as
broad and four-fifths as long as the clypeus; gemae not distinctly depressed beneath the

HEMIPTERA OF COLORADO. 97

eyes, outer margin broadly angled, attaining the tip of the
clypeus, unusually broad beneath the lorae; front one-sixth
longer than broad, twice as long as the clypeus, gradually nar-
rowing below, superior angle rather broadly rounded. Face
and vertex fine!y shagreened. Eyes with a small but distinct
emargination at the antennae. Disc of the vertex shallowly
and broadly depressed, length at middle once and one-
third that at the eyes, width between the eyes once and a third
the length at the middle. Pronotum about two and two-fifths
times wider than long, length one-seventh greater than that of
the vertex, curvature two-fifths of the length, feebly wrinkled
on the posterior three-fourths, slightly concave behind, sides
short and not carinate. Scutellum finely shagreened. Hind
margin of the last ventral segment truncate, with a median
slit, the hind angles produced and broadly rounded. Color
black, with yellow markings. Front with five light dashes on
either side andthe lower margin yellowish. Crest of the vertex
yellow, back of this are two black and two yellow lines extend-
ing from eye to eye, a black median line on posterior one-half.
Pronotum with a median transverse band and the hind margin
yellow. Scutellum with the sides yellow. Elytra dark smoky,
nervures and a broad line on the costal margin bright yellow;
middle of the cells paler. Abdomen black. Propleura with a yellow spot. Legs black,
distal end of anterior femora and a line on outside of posterior tibiae, yellow.
Length 4.5mm. Described_from one female.

Leadville, August 23d (Gillette).

Thamnotettix longula 0. sp.

T. flavormarginata,

Face one-ninth wider than long; clypeus two-thirds longer than broad, gradually

broadening to the apex, sides nearly straight; lorae as wide as the clypeus, and one-
fourth longer; genae broad, nearly flat beneath the eyes,
outer margin sharply rounded, hardly attaining the tip of
the clypeus, very narrow below the lorae; front one-fourth
longer than broad, twice the length of the clypeus, gradu-
ally narrowing below, superior angle obtusely rounded.
Face and vertex finely sbagreened. Disc of vertex flat,
sloping, one-third longer at the middle than at the sides,
width between the eyes little less than twice the length at
the middle. Pronotum one and three-fourths times wider
than long, length two and one-fourth times that of the d
vertex, curvature about one-half of the length, smooth on
anterior one-fourth, finely transversely wrinkled and with
shallow scattered punctures on posterior three-fourths,
hind margin slightly concave, sides carinate. Scutellum
finely shagreened, transverse groove curved forwards.
Color fulvous brown, nearly immaculate. Face with
about six indistinct transverse bands on either side of the
front. Vertex with a median dark brown line, and a dark
spot near the compound eyes on either side just within the
posterior margin. Pronotum with a faint yellow longitudi-
nal line, anterior margin whitish in the center. Scutellum
with two longitudinal pale lines running forwards from
ends of transverse groove, between these lines are two
dark spots, tip pale. Elytra uniform smoky subhyaline
with nerves and central portions of cells pale. Venter and
legs unicolorous.

Length5mm,. Described from two males,

Fort Collins, September 26th on Carex (Gillette).

98 PRELIMINARY

Thamnotettix geminata VanD.

Colorado (VanDuzee, 4).

Dolores, June 18th (Gillette).
Thamnotettix gillettei VanD.

LIST

Det. VanDuzee.

Det. Var Duzee.

Colorado (Gillette—see VanDuzee, 2). Colorado (VanDuzee, 4).

Steamboat Springs, July 26th (Gillette).

Thamnotettix infuscata 0. sp.

Face about an eighth wider than long; clypeus one-fourth longer than wide, not at all
contracted in the middle, sides parallel, very slightly narrowed towards the tip, basal

suture slightly curved; lorae as long and slightly
more than one-half as broad as the clypeus; genae
broad, somewhat concave below the eyes, outer
margin evenly rounded; front scarcely longer than
broad, four-fifths longer than the clypeus, gradually
narrowing below, superior angle littie greater than
aright angle and rather pointed. Face and anterior
half of vertex shagreened. Disc of vertex with a
transverse median depression and with a small pit
on either side basally close to the eyes, length at
the middle once and two-thirds that next the eyes,
width between the eyes once and three-fourths the
length at the middle. Pronotum eight-ninths
wider than long, length once and two-thirds that of
the vertex, curvature five-elevenths of the length,
smooth anteriorly, posterior two-thirds finely trans-
versely wrinkled and with numerous scattered sub-
obsolete dark punctures, posterior margin slightly
concave,sides little longer thanin T. atridorsum, and
witha distinct carina. Scutellum finely shagreened,
the transverse groove curved forwards. Last ven-
tral segment with hind margin concave, posterior
angles subacute, obliquely cut off. Color yellowish.
Face and vertex smoky yellow. ‘’Pronotum dark
with yellow snterior and lateral margins. Scutel-
lum yellow, within the posterior angles smoky, two
dark dots before the posterior line. Elytra dark
smoky, subhyaline, darker on the shoulders, veins
yellowish. Abdomen with segments black, mar-
gined apically and laterally with yellow. Venter
with two last segments and pygofers yellow. Legs
sordid yellow, tips of tarsi infuscate, black spots
at baae of tibial spines.
Length6mm. Described from one female.

Estes Park, July 12th (Gillette).

Thamnotettix kennicotti Uhl.

Colorado (VanDuzee, 4).

Det. VanDuzee.

Fort Collins, May 8th; Spring Canon, May 11th (Gillette).

Thamnotettix laeta Uhl.

Det. VanDuzee.

From mountains near Beaver Brook, August 6th (Uhler, 5). High mount-
ains, June 19th to September 6th (Carpenter—see Uhler, 6). Colorado (Van-

Duzee, 4).

HEMIPTERA OF COLORADO. 99

Steamboat Springs, July 26th (Gillette).
Thamnotettix longiseta VanD. Det. VanDuzee.

North-western Colorado (Gillette—see VanDuzee, 2). Colorado (VanDuzee,
4).

Steamboat Springs, July 26th (Gillette).
Thamnotettix montanus Vanl. Det. VanDuzee.

Mountains of South-western Colorado »(Gillette—see VanDuzee, 2):
Colorado (VanDuzee, 4).

Steamboat Springs, July 26th (Gillette). Steamboat
Springs, July 14th on Carex, Solidago and Delphinium occi-
dentale (Baker).

Thamnotettix punctiseuta 0. sp.

Face about one-ninth wider than long; clypeus one-third longer than broad, sides
almost parallel, broadly rounded at the apex, basal suture nearly straight; lorae two-
thirds as wide and almost as long as the clypeus; genae moderately depressed beneath
the eyes, outer margin evenly
rounded, attaining the tip of
the clypeus, very narrow below
the lorae; front nearly as broad
as long, once and three-fifths
the length of the clypeus,
rapidly narrowing below, su-
perior angle very obtuse. Face
and vertex finely shagreened.

Disc of vertex flat, sloping,

length at the middle once and

a half that at the eyes, width

between the eyes once and © @

four-fifths the length at the

middle. Pronotum twice wider

than long, length once and

three-fourths that of the ver-

tex, curvature three-sevenths of the length, posterior two-thirds finely transversely
wrinkled and with scattered shallow punctures, hind margin slightly concave, sides
rather long and tarinate. Scutellum finely shagreened, transverse suture nearly straight.
Coler. yellowish and smoky. Face yellow with sutures und a spot beneath the antennae
black, a small brown spot on the upper end of the lorae and one on the genae beneath the
eyes. Vertex yellow with two small approximate brown spots on the disc. Pronotum
with disc dark green, front and lateral margin yellow. Scutellum yellow with two black
spots in frontof the transverse groove. Elytrasmoky tinged with green, nervures yellow.
Tergum black, margins yellow. Venter black, segments apically margined with yellow,
next to the last segment with two large yellow spots on either side. Genital organs
yellowish below. Legs light yellow.

Lengthimm, Described from one male.

Steamboat Springs, July 26th (Gillette).

100 PRELIMINARY LIST

Thamnotettix sonorae 0. sp.

Face one-sixth wider than long; clypeus one-half longer than broad, slightly con-
stricted at the middle, basal suture curved; lorae three-fourths as broad as the clypeus
and slightly longer; genae broad, hardly depressed beneath the eyes, outer margin
broadly rounded; front a third longer than broad, two eae
times the length of the clypeus, gradually narrowing to
the clypeus, superior angle rather sharp. Front and an-
terior half of vertex rather coarsely shagreened. Disc of
the vertex scarcely depressed, a third longer at the middle
than next the eyes, width between the eyes twice the length
at the middle. Pronotum two times wider than long, length
little less than twice that of the vertex, curvature one-
half of the length, scattered shallow punctures on the pos-
terior two-thirds, posterior margin concave, sides short.
Scutellum with a small depression just before the apex.
Last ventral segment with the hind margin truncate
with a deep narrow notch. Color pale yellow. Face
pale yellow. Two small transverse spots on the base
of the clypeus, and a large spot beneath the antennae,
black. Vertex pale yellow with two large approximate
black spots on the apex, and a small black spot on either
side back of the ocelli. Pronotum greenish yellow washed
with sulphur yellow. Scutellum pale sulphurous yellow
with transverse groove broadly black. Elytra smoky sub-
hyaline, nervures sometimes darker towards the tip. Ven- T. sonoras
ter pale yellow, first segment black. Legs pale yellow,
tips of tarsi infuscate.

Length 4.5mm. Described from two females. ® 2

Dolores, June 18th (Gillette).

Thamnotettix (Jassus) tenella Uhl. Det. VanDuzee.
Grand Junction, August 26th, common on sugar beet.

This species, the description of which we have not seen, is
referred to Thamnotettix on Mr. VanDuzee’s suggestion,
though it seems to be a Limotettix.

Eutettix clarivida VanD. Det. VanDuzee.

Colorado (VanDuzee, 4).

Montrose, June 24th (Gillette).

Eutettix (Limotettix) exitiosa Uhl.
Colorado (VanDuzee, 4).
Colorado Springs, August (Tucker).

Eutettix incerta 0. sp.

Face one-eleventh wider than long; clypeus fully one-half as long as broad, consid-
erably constricted on the basal two-thirds, broadest near the rounded apex; basai suture
curved; lorae as long and nearly as broad as the clypeus; genae broad, feebly depressed

HEMIPTERA OF COLORADO 101

beneath the eyes, outer margin concave near
the eyes, broadly rounded below, attaining the
tip of the clypeus, quite narrow below the lorae:
front two-fifths longer than broad, twice as
long as the clypeus, superior angle very obtuse
and evenly rounded, Face and vertex finely
shagreened. Disc of vertex not depressed, one-
third longer on the middle than next the eyes,
width between the eyes twice the length at the
middle. Pronotum two and one-eight times as
broad as long, length onc: and six-sevenths
that of the vertex, curvature three-sevenths of
the length, smooth anteriorly, posteriorly with
scattering obsolete punctures. Scutellum as
in querci. Hind margin of the last ventra
segment with the tooth more nearly rectangu-
lar than in querci. Color fuscous. Vertex,
anterior margin of pronotum, and all beneath
pale yellowish. Elytra smoky subhyaline with
an indistinct darker band extending down and
forward from the tip of the clavus. Inner mar-
gin of the clavus with two oblique pale spots.
Length5mm. Described from one female. Near querci.

Manitou, July (Tucker).

Fuutettix querci 0. sp.

{ }

eS

Female: Face one-sixth wider than long; clypeus fully two- thirds longer than broad,
constriced in the middle, broad near the apex, basal suture curved; lorae as long and
four-fifths as broad as the clypeus: genue broadly expanded laterally, a broad shallow
furrow extending from eyes to lorae, outer margin sharply rounded; front nearly one-
third longer than broad, fully twice as long as the
clypeus, rapidly narrowing below the antennae,
superiorly very obtuse and evenly rounded. Face
and vertex finely shagreened. less distinctly on the
latter. Disc of the vertex transversely and nar-
rowly depressed just back of the anterior margin,
slightly longer on the middle than next the eyes,
width between the eyes once and five-sixths the
length at the middle. Pronotum little more than
twice wider than long, length two times that of the
vertex, curvature six-elevenths of the length,
anterior one-fourth smooth, posterior three-fourths
faintly transversely rugose, posterior margin
slightly concave. Scuteitlum with the black trans-
verse groove curving forward. Hind margin of the
last ventral segment with two deep sharp notches,
including between them a large blunt median tooth,
posterior angles rounded. Color fulvous brown.
Face and vertex pale yellow, a small black spot on
the genae next to the lorae, vertex with an indis-
tinct brown mottling. Pronotum fulvous brown,
yellowish on the anterior margin, with an indis-
tinct pale median line. Scutellum yellowish with
the basal angles, two spots between, and apex, ful-
vous brown. Elytra uniform pale smoky brown,
subhyaline. Abdomen except the first ventral seg-
ment, yellowish brown, pygofers reddish, pale on
the lower margin, with whitish hair arising from
black spots. Prosternum with a large black spot.
Legs pale yellow, tibial spines arising from black
spots, tips of tarsi infuscate.

102 PRELIMINARY LIST

Male: Differs from the female as follows:—Generally darker colored. Basal joint of
antennae distinctly margined internally with black. Vertex more strcngly depressed.
Elytra with veins dark brown. Venter black with tips of segments yellowish. Plates.
yellowish brown streaked with black. Black spots on tibiae larger.

Length of female 6-6.5mm, of male5mm. Described from seven females and one male.

Glenwood Springs, August 24th; Manitou, September 29th
on oak (Gillette).

Eutettix seminuda Say.

Montrose, June 24th; Fort Collins, September 11th on
appie (Gillette).
Eutettix terebrans 0. sp.

Face one-eighth wider than long; clypeus one-sixth longer than broad, narrowing to
a truncate apex, deeply transversely depressed near the apex and broadly and shallowly
depressed near the base, the lateral margins curv.d; lorae as long and one-half as broad
as the clypeus; genae slightly depressed near
the eyes and toward the lorae, outer margin
rounded, strongly margined, and slightly ex-
ceeding the clypeus; front scarcely longer
than broad, once and four-fifths the length
of the clypeus, gradually narrowing to near
the clypeus, superior angle obtusely rounded.
Face and anterior third of vertex coarsely
shagreened with scattering shallow punc-
tures. Disc of the vertex with a small de-
pression at the tip and a broad transverse
depression before the tip and between the
compound eyes, length at the middle once
and a fourth that next the eyes, width be-
tween the eyes once and a half the length at
the middle. Pronotum considerably more
than twice as broad as long, length once and
a fourth that of the vertex, curvature about
one-half of the length, shagreened on the an-
terior third, transversely wrinkled on the
posterior two-thirds, posterior margin slight-
ly concave. Scutellum coarsely shagreened, slightly shorter than the pronotum. Last
ventral segment with the hind margin broadly and very deeply notched, the notch with a
short, strong, rounded tooth at the center, the lateral angles produced and subacute-
Ovipositor extremely long, as long as the body back of the head, exceeding the vygofers by
aboutlmm., and the wings by .8mm. Color tawny yellow. Face light brownish yellow,
about six transverse dark dashes on either side of the front; genae with a dark spot below
the eyes and a dark point near the lorae. Vertex with a large rectangular spot either
side next the eyes and a smaller one at the apex, the sunken pit just back of this spot
blackish, and about four indistinct infuscated spots between the eyes near the hind
margin. Pronotum with two small transverse black spots near the median line and abeut
one-third of the length back of the front margin, back of the compound eyes on either
side are about six small black spots, back of these spots the disc is brownish yellow-
Scutellum yellowish, transverse groove black. Elytra yellowish subhyaline. Tergum
yellowish with six longitudinal black bands. Venter yellowish with basal segment black.
Pygofers yellow streaked with black, valves yellow on the lower margins, black at the
sides. Legs dirty yellow, tibial spines brown, tips of tarsiinfuscate. Propleura with a
black spot.

Length 4.75 mm. Described from one female. This unique form introduces a very
novel element into the genus Eutettix.

North Park, July 20th (Gillette).

HEMIPTERA OF COLORADO. 103

Eutettix vanduzei 0. sp.

Face two-elevenths wider than long; clypeus one-third longer than broad, slightly
constricted at the middle, nearly as broad before the apex as at the base, basal] suture
curved; lorae somewhat shorter and much narrower than the clypeus; genae broad,
nearly flat, very broadly rounded outwardly; front about one-fourth longer than wide
almost twice the length of the clypeus, gradually narrow-
ing to the clypeus, superior angle very broadly rounded.
Face and vertex finely shagreened. Disc of the vertex
flat, two shallow pits immediately back of the large black
spots near the anterior edge, once and a half as long on
the middle as next the eyes, width between the eyes little
more than twice the length at the middle. Pronotum two

and a sixth times wider than long, length once and a half
that of the vertex, curvature about one-half of the length,
posterior two-thirds finely transversely wrinkled, with
scattering shallow black punctures, posterior margin shal-

5 1 lowly concave. Scutellum finely shagreened. Last ven-
PT vanduzer. tral segment of the female with the hind margin nearly
truneate, posterior angles oliquely cut off. Color pale
greenich yellow. Face light yellow, sutures, spot beneath
antennae, two transverse spots at the extreme base of the
clypeus, two V-shaped marks on the genae, and two large
curved spots immediately beneath the crest of the yertex,
black. Vertex pale yellow with two large black spots on
the disc, a little nearer to the eyes than to each other.
Pronotum yellowish, with two more or less distinct trans-
verse black lines, one just before the middle and the other
next the posterior margin. Scutellum light yellow, trans-
verse suture black. Elytra greenish subhyaline with nerv-
ures yellowish. Tergum black, with broad lateral and
narrow apical margins yellow. Venter pale yellow with median basal portions of first
two segments black. Ovipostor black. Legs pale yellow with minute black spots at
bases of tibial spines, tips of tarsi infuszate.
Lengthimm. Described from one female.

Rabbit Ear Pass, Larimer County, July 20th (Baker).

_ This species may prove to be Thamnotettix (sensu strict.).
It is certainly congeneric with E. clarivida.

Chlorotettix unicolor Fitch. Det. Van Duzee,

Steamboat Springs, July 26th; Colorado Springs, August
dd (Gillette).

Neocoelidia n. gen.

Allied to Tinobregmus. Body short and robust. Head narrower than pronotum, short
conical, rather obtuse and tumid; vertex expanded posteriorly behind the eyes, ocelli on
extreme front edge, front very broad below, the sides nearly parallel. Antennae as long
as head, pronotum, and scutellum together. Pronotum short, length at middle four-
fifths that of vertex, anterior and posterior margins nearly parallel. Scutellum large,
normal. Elytra semicoriaceous, without an appendix, but extending beyond the tip of
the abdomen; the first sector but once forked in the proximal two-thirds, the inner
branch connected with the second sector by a single transverse nervure, the latter
entering an anteapical cell; apical areoles four. Wings well developed, margined, the
nervures very strong, second and third sectors uniting before the marginal nervure, thus
forming but one apical cell; a transverse nervure between second and third sectors form-
ing a single, short, triangular, apic.l cell. Rostrum longer than the clypeus., Posterior
tibiae outwardly with two rows of mo lerate spines. Type, N. tumidifrons.

104 PRELIMINARY LIST

Neocoelidia tumidifrons 0. sp.

Face a thirteenth wider than long; clypeus two-thirds longer than broad,
sides nearly parallel, apex nearly truncate, basal suture strongly curved; lorae
nearly as long and two-thirds as broad as the clypeus; genae broad, somewhat depressed

. below the eye-, outer margin broadly rounded, very broad be-
low the lorae; front tumid, sides nearly parallel, broad below,
one-fourth longer than broad, nearly twice the length of the
clypeus, superiorly obtusely rounded. Face shagreened. Ver-
tex tumid, elevated, coarsely shagreened, a shallow longitu-
dinal depression on either side, three-fifths longer on the
middle than next the eyes, width between the eyes once and
two-sevenths the length at the middle. Pronotum coarsely
transversely rugose, three times 2s broad as long, four-fifths
the length of the vertex, curvature three-sevenths of the
length. Scutellum with lateral margins broadly, sharply, and
deeply depressed, the scutellar suture subobsolete, nearly
straight. Last ventral segment long, narrowing to an acute
point, nearly equalling the pygofers. Color light green, unicol-
orous below, except the black tips of the pygofers. T’wo small
black spots within the basal angles on the edge of the elevated
portion of the scutellum.

Length 3.5mm. Described from two males.

Fort Collins, June 6th (Baker). Pleasant
Valley, seven miles north-west of Fort
Collins, June 12th (Gillette).

Gnathodus abdominalis VanD.
Det. VanDuzee.

Colorado (VanDuzee, 4).

Colorado Springs, August
2d; Glenwood Springs, August
24th; Grand Junction, August
26th, on sugar beet (Gillette).
Fort Collins, June 9th on bar-
ley; Steamboat Springs, July
16th (Baker). Colorado City,
August (Tucker).

ne tumidifrons,

NM tumififrons

Gnathodus confusus 0. sp.

Face one-fifth wider than long; clypeus twice as long as broad,

basal suture strongly curved, somewhat constricted near the base,

6 broadest near the tip; lorae about three-fourths as broad and
three-fourths as long as the clypeus; genae broadly depressed be-

5 neath the eyes, margin beneath the eyes inverted, broadly round-
ed below, moderately broad below the lorae and attaining the tip
of the clypeus; front one-fifth longer than broad, once and two-
thirds the length of the clypeus, superiorly broadly rounded.
Face, vertex, and pronotum finely shagreened. Vertex scarcely
longer on the middle than next the eyes, width between the eyes
slightly more than four times the length at the middle. Pronotum
slightly less than twice as broad as long, length nearly four times
that of the vertex, curvature about one-half of length, consider-

HEMIPTERA OF COLORADO. 105

ably wider than the head, hind margin slightly concave. Transverse groove of scutellum
black. Hind margin of last ventral segment of female truncate. Color yellowish
green. Face sordid yellow, basal angles of the clypeus with an infuscated spot. Ver-
tex of the same colorasthe face, with three indistinct longi’ udinal smoky bands, the
ocelliin light areas. Pronotum light yellowish green on the anterior and lateral margins,
darker green on the middle, two dark brown spots medially just back of the anterior
margin, the latter in some specimens entirely obsolete. Scutellum pale yellow, basal
angles darker. Elytra greenish subhyaline, slightly maculate with brown near the cla-
vus, somewhat smoky towards the tip. Tergum black with the apical margins of the
segments yellow. Venter yellow with the first two or three segments black at the base,
pygofers yellowish. Sternum black. Legs yellowish throughout, with infuscated lines
on the outside of the femora. .
Length 3.75 mm. Described from seven females.

Pleasant Valley seven miles north-west of Fort Collins,
June 12th; Estes Park, July 12th (Gillette). Steamboat
Springs, July 12th on Carex (Baker).

We have a single female specimen which seems distinct from this species, but to which
at this time we hesitate giving a name. It differs as follows: The color more yellowish.
Pronotum distinctly less than twice broader than long. Length 4mm.

Estes Park, July 12th (Gillette).

Gnathodus manitou 0. sp.

Face finely shagreened, a seventh wider than long; clypeus nearly twice as long as
broad, rounded at the tip, slightly constricted before the base, basal suture strongly
curved; lorae nearly as long and three-fourths as broad as the clypeus; genae moder-
ately broad, rather deeply depressed beneath the eyes, outer
margin angularly incised below the eyes, sharply rounded A
below, attaining the tip of the clypeus; front one-haif longer
than broad, twice as long as the clypeus, gradually narrowing
below, obtusely rounded above. Vertex one-half longer on the
middle than next the eyes, width between the eyes two and
one-half times the length at the middle. Pronotum five-sixths
broader than long, two and three-fifths times longer than the
vertex, curvature two-fifths of the length, posterior margin
very slightly concave, anteriorly smooth, posteriorly with
scattered feeble punctures, on the posterior median portion
finely obliquely rugose, the lines converging backwards.

Last ventral segment feebly rounded behind, nearly truncate, =

pygofers with numerous stout hairs along the whole ‘ength.
Color pale green, unicolorous. Elytra hyaline.
Length5mm. Described from one female.

Manitou, July (Tucker).

Cicadula arcuata 0. sp.

Female: Face finely shagreened, one-sixth wider than long; clypeus one-half longer
than broad, sides parallel, rounded at the apex, basal suture curved; lorae three-fourths
as long and one-half as wide as the clypeus; genae moderately broad, somewhat depressed
beneath the eyes, outer margin angled above, straight below, attaining the tip of the
clypeus, moderately broad below the lorae; front one-fourth longer than broad, once and

106 PRELIMINARY LIST

three-fourths the length of the clypeus, superiorly very obtusely
and evenly rounded. Vertex a third longer on the middle than
next the eyes, width between the eyes two and one-third times
the length at the middle, finely shagreened anteriorly. Pronotum
little lessthan twice as broad as long, and little more than twice
the length of the vertex, curvature one-half of the length, pos-
terior margin straight, disc with scattered shallow punc-
tures. The black scutellar suture nearly straight. Hind mar-
gin of the last ventral segment nearly truncate, posterior angles
obliquely cut off, pygofers with stout hairs on the distal half.
Color greenish yellow. Face yellow, sutures of the front and cly-
peus and sockets of the antennae black, above dusky with sev-
eral rather indistinct transverse lines. Vertex yellowish to
brownish with a fine black median line on the basal half, and two
large black spots anteriorly between the compound eyes. Prono-
tum greenish yellow, anteriorly with a transverse black line
nearly parallel with the anterior margin, its lateral ends bent
forward. Elytra pale greenish, hyaline, nervures yellowish.
Tergum black, segments narrowly margined with yellowish.
Venter and pygofers yellow. valves black. Sternum black. Legs
pale yellow.

C.AYCUALA _

Male: Sutures of the face more heavily biack, the face above
darker with a small black spot on either side above antennae. Vertex with a black line
margining the eyes. Basal angles of the scutellum with black spots within. Venter
black, posterior margins of segments broadly yellow. One specimen lacks entirely the
black are on the pronotum.

Length of female 4.75 mm., of male 4.5mm, Described from two males and one female.

Estes Park, July 12th; Leadville, August 23d (Gillette).
Steamboat Springs, July 12th, on Solidago (Baker).

Cicadula divisa Uhl.

Abundant upon low herbage in damp fields near Denver, and near Sloan’s
Lake, west of Denver, August 17th (Uhler, 5).

Estes Park, July 12th; Leadville, August 23d; Minturn,
August 24th (Gillette). Fort Collins, September 2d, on Soli-
dago; Steamboat Springs, July 12th, on Carex (Baker).
Colorado Springs (Tucker).

This species will probably prove to be, at 2».
the most, but a form of C. 6-notata.
Cicadula lutea Nn. sp.

Face one-seventh wider than long; clypeus one-third longer than
broad, tapering to the rounded apex. sides nearly straight; lorae a
little shorter and about one-half as broad as the clypeus; genae
broad, outer edge incurved beneath the eyes, broadly rounded
below, moderately broad below the lorae; front one-sixth longer
than broad, three-fourth slonger than the clypeus, superiorly broadly
rounded. Face finely shagreened. Vertex shagreened, punctured
on a small median area, with an oblique pit on either side near the
hind margin, one-third longer on the middle than next the eyes, width
between the eyes little more than once and a half the length at
middle. Pronotum smooth anteriorly, posteriorly finely transversely
wrinkled with scattered punctures, four-fifths wider than long, one-
half longer than the vertex, curvature six-tenths of the length

C. lutea.

HEMIPTERA OF COLORADO. 107

Color deep lemon-yellow. Face and all belovy concolorous. Vertex with a narrow
median liueand a smallspot in the position of each ocellus black. Pronotumposteriorly
dark greenish yellow. Scutellum greenishyellow. Elytra hyaline, nervures yellow, wings
iridescent. Tergum black, with narrow apical margins of segments and the whole of the
last segment yellow. Extreme tips of valves black.

Length 3.5mm. Described from one male.

Steamboat Springs, July 12th, on Carex (Baker).
Cicadula 6-notata Fall. Det. Van Duzee,

Montrose, June 24th; Colorado Springs, August Ist
(Gillette). Fort Collins, July 24th (Baker). :

Cicadula variata Fall.

Leadville, August 25d (Gillette). Steamboat Springs, July
16th (Baker).

Empoasea aspersa 0. sp.

Female: Clypeus one-third,longer than broad, basal suture straight; lorae half as

broad and two-thirds as long as the clypeus; genue long

and narrow, moderately furrowed beneath the eyes, the

furrow extending to the lorae, outer margin somewhat con-

cave; front two-thirds longer than broad, twice as long

as the clypeus, superior angle little more than aright angle

and broadly rounded. Face and vertex without sculptur-

ing, the latter glabrous. Disc of vertex once and a half

as long on the middle as next the eyes;

pronotum slightly 1 ss than twice

wider than long, front margin broadly

rounded, hind margin slightly con-

cave, dise very finely longitudinally

aciculate. Scutellum broader than

long, transverse groove straight and

E Aspersa haat Last ventral segment with the

nd margin evenly rounded and the

A posterior angles sloping. Color green-

ish; face yellowish green, front more

or less distinctly marked with a pale

median line and with transverse con-

centric pale lines; vertex and prono-

tum whitish or pale yellowish green,

with ubout four more or less distinct

deeper yellowish green and variously

Se bent, nearly longitudinal lines, some-

times orange on the former and dusky on the latter; scutellum with basal angles

dark or yellowish green, median portion whitish mottled with greenish; elytra

greenish, hyaline at tip, nervures whitish, basal two-thirds finely spotted with dusky

green; tergum black with more or less of sides and apical margins yellowish; venter pale
green, pygofers darker; legs pale greenish shading to bright blue at tips. Length 3mm.

Male: Markings which in the female are dark yellowish green, are dusky here
Described from six females and two males.

Fort Collins, on Bigelovia, September 27th (Gillette). In
mountains south-west of North Park July 10th, and at
Steamboat Springs July 12th, on Artemisia tridentata
(Baker).

108 PRELIMINARY LIST

Empoasca aureo-viridis Uhl.

In large numbers at Denver and in Clear Creek Canon, on willows, August
4th to 18th (Uhler, 5). Colorado (VanDuzee, 4).

Empoasca clypeata Nn. sp.

Male: Clypeus one-half longer than broad, basal suture straight; lorae as in T.
Sanguinea: genae very narrow, attaining the clypeus as a very narrow line, lateral
margins nearly straight; front nearly twice as long as its greatest width between the
eyes, twice the length of the clypeus, superior angle very broad and obtusely rounded.
Face and vertex finely shagreened. Disc of
vertex flat, sloping, scarcely longer on the
middle than next the eye. Pronotum slightly
wrinkled on posterior two-thirds, glabrous in
front, slightly more than twice as broad as long, Zann an
anterior margin broadly rounded, posterior JP? rt if
margin concave, posterior angles’ sharply Ag
rounded, sides long. Scutellum normal, trans-
verse suture straight. Color yellowish; in light
specimens, face, vertex, pronotum, and scutellum yellowish, conzolorous; in dark speci-
mens front with a median white line, pronotum dusky on posterior half, scutellum with
basal angles and transverse groove dark; elytra in light specimens yellowish subhyaline,
in dark specimens shaded into deepsmoky subhyaline; venter and legs entirely pale
yellow, sometimes tibiae and tarsi slightly smoky.

Length 4.5mm. Described from six males.

Kstes Park, July 10th (Gillette). Steamboat Springs, July
10th on willow (Baker).

Empoasca nigra vn. sp.

v

Male: Clypeus about one-half longer than broad, basal suture straight: lorae as in
T. sanguinea; genae suddenly broadening close to eye, lateral margin almost straight,
attaining the clypeus in a very narrow line; front nearly one-half longer than broad,
once and two-thirds the length of clypeus, superior angle
broadly obtusely rounded. Face coarsely and obsoletely
shagreened. Disc of vertex sloping, with a slight median
depression on the posterior half opening into a slight de-
Aaa pression on the anterior margin of the pronotum, length
at the middle slightly more than next the eyes. Prono-
tum opaque, on anterior third smooth, on posterior two-thirds indistinctly transversely
rugose; slightly less than twice as broad as long, anterior margin broadly rounded,
posterior margin somewhat concave, posterior angles sharply rounded. Scutellum
Opaque, with a median pit just in front of the transverse groove, posterior half irregularly
wrinkled. Color black; antennae whitish; ocelli surrounded by a narrow pale margin;
elytra black, posterior third fading into smoky subhyaline; anterior tibiae, and all the
tarsi, smoky.
Length 2.75 to 3mm. Described from five males.

Mountains south-west of North Park, July 10th, on Arte-
misia tridentata (Baker).

Empoasca nigroscuta 0. sp.

Female: Clypeus minutely transversely rugose, one-

Gi half longer than wide, basal suture straight, apex rather
o . pointed; lorae two-thirds as long, and one-halfas wide as
clypeus, distant from tip of clypeus; genae narrow, a deep

sunken furrow beneath the eyes extending to the lorae,

not attaining tip of clypeus, outer margin nearly straight,

very narrow below lorae; front smooth, nearly twice longer

HEMIPTERA OF COLORADO. 109

than wide, once and three-fourths the
length of the clypeus, superior angle
somewhat greater than a right angle,
rather sharply rounded. Disc of ver-
tex smooth, once and a half as long on
middle as next eyes. Pronotum very
minutely transversely wrinkled on ;
posterior three-fourths, anterior E nigroscuta
margin broadly rounded, hind margin

ay

2 a

nearly straight, sides short. Scutel- es
lum broader than long, transverse (eS Se ie

groove slightly curved backward. va

Last ventral segment with hind mar-

gin nearly truncate, Color pale yel- Ciena. oo

low marked with smoky; face and py ya

vertex pale yellowish, posterior one- Ta ah

half of latter with a median black line; pronotum pale yellow on anterior and lateral
margins, remainder darker; scuteilum black. basal angles sometimes yellowish; elytra
yellowish, subhyaline, apex smoky, clavus with a large deep smoky blotch at tip; venter
blackish, last segment yellow; tergum blackish, with tips and lateral margins of seg-

ments more or less yellowish; prosternum black; legs pale yellow.
Length38 mm. Described from two females.

Dolores, June 18th (Gillette).
Empoasca obtusa Walsh. Det. Gillette.

Fort Collins, June 23d on Virginia Creeper; Estes Park,
July 12th; Colorado Springs, August 23d; Manitou, Septem-
ber 29th, on willow; Minturn, August 24th; Leadville,
August 23d (Gillette). Fort Collins, June 9th. on alfalfa, and
August 4th on cottonwood; Steamboat Springs. July Ldth,
on willow (Baker). Colorado Springs, August “(Tueker).

Empoasca pulchella vt. sp.

Female: Clypeusa third longer than wide, basal suture

straight; lorae long and narrow, scarcely grooved, attain-

(Gel ing the end of the clypeus; front two-thirds longer than
broad, nearly twice the length of the cly peus, superior angle

obtusely rounded. Face und vertex without sculpturing,

opaque. Disc of vertex scarcely longer on the middle than

at the sides. Pronotum twice as wide as long, front margin
broadly rounded, hind) iargin decidedly concave, posterior
angles broadly, rounded, sides rather
short, without distinct sculpturing but
with two small pits near the median
line one-fourth of the Uistance bacls
Peek from the anterior margin. scutellum
broader than long, trunsverse groove
/ black. Last ventral segment with the

a ee hind margin deeply anu broadly notch-
ed, posterior angles rounded. Color

steel blue varied with smoky and

orange: head pale orange, genae anda

large triangular mark on front extend-

Mi 2 eA
ing onto and ucross vertex medially,
ivory white; disc of vertex with a
black median line on posterior two-
a hirds; ocelli rufous and distant from

the eyes; pronotum pale blue washed

pulthella

110 PRELIMINARY LIST

‘with white and pale orange on anterior and lateral margins; scutellum orange with
whitish mottling; elytra subhyaline, smoky at base across median portion, and at tip,
forming three broad indistinct trans verse bands, clavus and corium posteriorly, each
with a pale orange stripe, veins whitish apically; last ventral segment almost entirely
whitish, pygofers rufous below; legs sordid white.

Length 3mm. Described from one female.

In mountains south-west of North Park, July 10th, on
Artemisia tridentata (Baker).

Although we would think it unadvisable,as a rule, to
describe Typhlocybidae from single specimens, we have con-
cluded to do so with a few well marked uniques that we
took the past season.

Empoasca pura Stal. Det. Gillette.

Fort Collins, June 24th,and September 27th on Clematis
ligusticifolia; Manitou, September 29th, on oak (Gillette).

Our specimens referred to this species may prove to be
new as we have not seen types. Our specimens answer to
the description of pura.

Empoasca (Kybos) smaragdula Fall. Det. Gillette.

“Colorado (VanDuzee, 4).

Spring Canon, eight miles south-west of Fort Collins, June
“30th to July 12th; The Rustic, Larimer County, August 11th
(Gillette. Steamboat Springs, July 15th on willow (Baker).
Cheyenne Canon, Colorado Springs, July (Tucker).

The genus Kybos must fall under the older name
Empoasca. Specimens of K. smaragdulus received through
Mr. VanDuzee from France (Lethierry) show a typical
Empoasca wing and elytron and we can find no generic
characters to separate it from that genus.

Empoasca typhlocyboides 0. sp.

Mate: Clypeus subacute at apex, one-fifth longer than broad, basal suture straight;
lorae one-half as wide and two-thirds as long as clypeus; genae narrow, not attaining tip
of clypeus, furrow shallow, outer margin slightly concave over coxae, slightly convex

along lorae; front one-fourth longer than broad, nearly
twice the length of clypeus, superior angle broadly
rounded. Face and vertex nearly smooth. Length of ver-
tex at middle nearly once and a half that next the eyes.
ip Pronotum slightly less than twice as broad as long, pos-
terior two-thirds minutely transversely rugose, front
margin broadly rounded, hind margin concave, posterior
angles broadly rounded. Scutellum broader than long, transverse groove straight.
Color pale bluish or yellowish green; face and vertex pale yellow: pronotum pale yellow

HEMIPTERA OF COLORADO 1

or bluish green, with front and lateral margins yellowish, hind margin sometimes whitish;
disc of pronotum sometimes with three faint longitudinal orange lines; scutellum
yellowish, sometimes posterior angles bluish, elytra milky subhyaline, clavus with two
faint longitudinal orange marks, another near tip, a faint broken longitudinal orange
line on corium, veins whitish towards apex; abdomen pale greenish yellow; legs pale
yellow at base shading into deep blue at tips.

Length 2.6mm. Described from three males.

Steamboat Springs, July 12th, on Artemisia tridentata
(Baker).

Empoasca viridescens Walsh. Det. Gillette.

Fort Collins, September 27th, on Solidago spectabilis
(Gillette).

Typhlocyhba bifasciata 0. sp.

Near tricincta. Female: Clypeus once and a quarter as long as broad, basal suture
straight; genae long and narrow, with a broad deep groove from eye to clypeus, slightly
concave outwardly, broadest at eye, attaining tip of clypeus; lorae as long and some-
what narrower than clypeus; front three-fourths longer than broad between eyes,
three times as long as clypeus, superior angle more than a right angle and broadly
rounded. Face and vertex very finely and obsoletely Dame uineds more distinctly on
upper part of front. Disc of vertex, flat, sloping,
slightly less than one-half longer at middle than at
eyes. Pronotum slightly less than twice as broad as
long at middle, broadly rounded before, slightly
concave behind, posterior angles rather sharply
rounded, lateral margins long; disc of pronotum
with anterior third smooth, posterior two-thirds
very indistinctly transversely rugose; scutelliim
slightly shorter than pronotum, broader than long, transverse groove straight, black,
ends bent backwards; last ventral segment with hind margin broadly rounded. Color
yellow: face, vertex, and pronotum, light )emon yellow, concolorous; scutellum dark
smoky; elytra light lemon yellow with a broad smoky transverse band just in front of
middle, broader on inner margins, another broad smoky band at apex, lighter on middle
portion; venter pale yellow; legs pale whitish yellow. Length 4mm.

Described from one female. Minturn, August 24th,
(Gillette). Wealso have specimens from New York (Lint-
ner) IlJinois (Forbes) and lowa (Osborn).

Typhlocyha comes Say. Det, Gillette.

Canon City, August 31st, on plum; Manitou, September
29th on oak (Gillette).

Typhlocyhba flavomarginata 0. sp.

Tr. bifasciata

Female: Clypeus a third longer than broad, basal suture straight, sides nearly
parallel; lorae and genae as in bifasciatus: frout three
times the length of clypeus, one-third broader than
long, superior angle greater thana right angle, broadly

(> rounded. Face, vertex, and pronotum, sculptured as
in bifasciatus. Proportions of vertex, pronotum and
scutellum, same as in bifasciatus. Last ventral seg-
ment with posterior angles produced, acute, a broad
deep emargination between them, the base of which is

112 PRELIMINARY LIST

notched. Color

pale yellow or

whitish; face,

po Rite a) i vertex, and pro-
notum whitish,

concolorous,

scutellum whitish

with basal angles

T. flavomarginata, darker; elytra
whitish subhya-

line, nervures
lighter, costal
ep re i and internal mar-
gins flavescent,

deeper on inner
margin; venter
and legs pale yel-
low; pygofers,
sheaths of ovi-
positor, proster-
num. and tip of

rostrum tinged with flavescent.
Length 4mm. Described from three females.

Manitou, September 29th, on oak (Gillette).
Typhlocyba obliqua Say. Det. Gillette.

Foot-hills, five miles west of Fort Collins, April 25th;
Canon City, August 31st, on plum; Manitou, September 29th,
on oak (Gillette).

Typhlocyba rosae Harr. Det. Gillette.

Fort Collins, October 11th, on apple; Denver, September
Ist, on apple; Manitou, September 29th, on oak (Gillette).
Cheyenne Canon, Colorado Springs, July (Tucker).

Typhlocyba sanguinea 0. sp.

Near coccinea. Female: Clypeus one-half longer than broad, basal suture straight;
lorae very long and narrow, a half longer than clypeus, reaching half the distance be-
tween base of clypeus and antennae; genae long and narrow, lateral margin concave,

slightly grooved along sides of lorae. Front nearly
twice longer than wide at widest place between
eyes, two and one-fifth times as long as clypeus,
superior angle greater than a right angle, very ob-
tusely rounded; face and anterior half of vertex
very finely rugose; length at middle of disc of ver-
fy" tex one-fourth more than length at eyes. Pronotum
glabrous with obscure transverse wrinkles on pos-
terior one-half, four-fifths broader than long, anterior margin broadly rounded, posterior
margin distinctly concave, sides normal; scutellum broader than long; last ventral seg-
ment with hind margin broadly produced, very slightly notched at apex. Color pale yel-
low; face tinged with sanguineous above; vertex, pronotum except at sides, and
scutellum, bright sanguineous; elytra hyaline, veins very light yellow; vertex at sides,
and tergum, tinged with sang uineous; legs unicolorous.
Length 4mm. Described from one female.

oe SANAUINEA

HEMIPTERA OF COLORADO. 1i3

Manitou, September 29th, on Salix (Gillette).
Typhlocyha tricincta Fh. Det. Gillette.
Fort Collins, September 27th, on grass (Gillette).

Typhlocyha vititex Fh. Det. Gillette.

Fort Collins, September 4th, on Virginia Creeper (Baker).
Fort Collins, September 27th, on grass; Spring Canon, eight
miles south-west of Fort Collins, May 11th (Gillette).
Typhlocyha vitifex Warr. var. coloradensis Gill. Det. Gillette.

Fort Collins (Gillette, 6),

Fort Collins, Mareh Sth, hibernating under dead leaves
in vineyard (Baker). Fort Collins, May 18th to August 19th,
on grape (Gillette).

Typhlocyha vitis Harr.

Colorado (Van Duzee, 5).

This record is certainly a doubtful one, and probably
refers to vitifex.
Typhlocyba vulnerata Fiteh. Det. Gillette.
Spring Canon eight miles south-west of Fort Collins, May
11th; Fort Collins, June 23d on Virginia Creeper (Gillette) -
Fort Collins, Mareh Sth, hibernating under leaves in
vinevard, and September 4th on Virginia Creeper (Baker).
Psyla coryli Riley Ms. ; Det. Riley.
Steamboat Springs, July 26th (Gillette). Manitou, July
(Tucker),
Psylla gillettei Riley Ms. Det. Riley.
Fort Collins, May 23d; Rist Canon, April 10th (Gillette).
Rist Canon, April 20th on willow; Fort Collins, May 7th on
alfalfa; Cameron Pass July, 5th, above timber on a dwarf
Salix (Baker).

Psylla negundinis liiley Ms. Det. Riley.

Fort: Collins, June 4th (Gillette). Fort Collins, June 9th
on alfalfa (accidental), and September 26th, abundant on
box-elder; on the latter date a black ant was found carrying
a living specimen from the tree to the ground (Baker).

114 PRELIMINARY LIST

Psylla purshiae Riley Ms. Det. Riley.
Rist Canon, May 29th; Steamboat Springs, July 26th;

Trividad, May 14th (Gillette).

Psylla 4-lineata Fitch. Det. Riley.
Soldier Canon, five miles west of Fort Collins, May 19th

(Gillette).

Psylla ribis Riley Ms. Det. Riley.
Spring Canon, May llth and June 5th; Fort Collins,

October 15th and May 9th; Trinidad, May 14th (Gillette).

Dixon’s Canon, May 6th on Ribes cereum (Baker).

Pachypsylia celtidis-umbilicus Riley. Det. Riley.
Golden, April 80th (Gillette).
Fuphyllura arctostaphyli Riley Ms. Det. Riley.

Spring Canon, July 24th, imagos and nymphs on Arctos-
taphylos uva-ursi (Cowen).
Aphalara angustipennis Riley Ms. Det. Riley.

North Park, July 20th; Steamboat Springs July 26th;
Montrose, June 24th; Fort Collins, July 4th; Dolores, June
18th; Estes Park, July 11th; Colorado Springs, August 2d
(Gillette). Fort Collins, June 12th, on alfalfa (Baker).
Aphalara calthae L. Det. Riley.

Fort Collins, May 8th; Rist Canon, May 29th (Gillette).
Fort Collins, May 16th to 31st on alfalfa, and May 7th on
gooseberry; Steamboat Springs, July 12th on Carex ( Baker).
Canon City, October 15th in all stages on tomato (John
Gravestock). Green Mountain Falls, Colorado Springs, July
(Tucker ).

Aphalara epilobii Riley Ms. Det. Riley.
Ouray, June 22d (Gillette).
Aphalara harrisii Riley Ms. Det. Riley.

Near West Cliff, Custer County (Cockerell, 10).

North Park, July 19th; Fort Collins, June 14th; Estes
Park, July 12th (Gillette).
Aphalara marginata Riley Ms.

Custer County, midalpine (Cockerell, 10).

HEMIPTERA OF COLORADO. 115

Aphalara occidentalis Riley Ms. | Det. Riley.
Ouray, June 22d (Gillette).

Aphalara solidaginis Riley Ms. Det. Riley.
Fort Collins, July 4th (Gillette).

Aphalara utahensis Riley Ms. Det. Riley.

Steamboat Springs, July 12th on Artemisia tridentata
(Baker). Green Mountain Falls, Colorado Springs, July
(Tucker).

Trioza amelanchieris Riley Ms. Det. Riley.
Horsetooth Gulch, May 21st (Baker).
Livia vernalis Fitch. Det. Riley.

Trinidad, May 14th; Fort Collins, June 4th (Gillette).
Chermes sp.*

“Winged female: Body very dark brown, about1mm.long. Alar extent about 3.75
mm. Antennae about 0.20 mm. long, the third, fourth and fifth joints with about nine
annulations each. Wings rather long and narrow. Fore wing with subcostal vein wavy,
first and second discoidals s!ender, stigmatal obsolete at base, stigma sharp pointed and
oblique at base. Hind wings with the discoidal obsolete. Legs short.” ‘

Fort Collins, June 19th, winged and wooly apterous
individuals on Pseudotsuga douglassi (Cowen).

Pemphigus fraxinifolii Riley.

Fort Collins, July 17th in typical pseudo-galls on fraxinus
americana. Mostly wingless (Cowen).

Pemphigus populicaulis Fitch.

Fort Collins, July 12th, in typical galls on Populus
monilifera. In several cases Chaitophorus populicola was
found associated with this species in the partly open galls
(Cowen).

Pemphigus populi-conduplifolius Cowen na. sp.

“Winged viviparous female: Length 1.8-2.2 mm. Alar jexpanse 6.85 mm. Nearly
black, pruinose. The abdomen is deep green when the glaucous matter is removed by
placing the insect in alcohol. Antennae 1mm. long, joints slender, fifth and sixth with
about six or seven annulations each. Stigma short and broad. Unguis usually with a
constricted neck. Similar to ramulorum but larger and the antennal joints not nearly so
strongly annulated.

Apterous individuals yellowish, with a thick mat of wooly secretion enveloping the
abdomen. Eyes black.”

Nee ee eee ee ee ee —————E—EEeeeeeeee

*In the Aphididae all the determinations were made by Mr. Cowen, who also wrote
all the decriptions and collated the records. The undetermined and undescribed species
mentioned in the Custer County List (see Cockerell, 10) are not referred to except in cases
where there is a probability of their being identical with species mentioned in this list.

116 PRELIMINARY LIST

Fort Collins, July 12th, on Populus monilifera, forming a
pseudo gall by causing the upper surfaces of the leaf to fold
together along the midrib( Cowen).

Pemphigus populi-monilis Riley and Monell.

In Colorado, on narrow leaved cottonwood (Riley and Monell, 1).

Fort Collins, July 17th, in typical moniliform galls on
leaves of Populus angustifolia; Hotchkiss, Delta County,
July 14th. on the same host plant. Only one individual was
found in each gall (Cowen).

Pemphigus populi-ramulorum Riley and Monell.

On Populus balsamifera, Colorado (Riley—see Riley and Monell, 1).

Fort Collins, July 12th, on Populus monilifera, in galls at
base of petiole and on twigs. Sometimes the galls of this
species are far enough up the petiole to be almost distinct
from the twig, and are then quite similar to those of P.
populi-transversus (Cowen).

Pemphigus populi-transversus Riley and Monell.

On Populus monilifera and P. balsamifera, Colorado (Riley —see Riley and
and Monell, 1).

Fort Collins, July 12th, in typical galls with transverse
openings. on petioles of Populus monilifera (Cowen).
Pemphigus vagabundus Walsh.

Fort Collins, galls on Populus (Blinn).

Colopha ulmicola Fitch.

Fort Collins, July Sth, in “cockscomb”’ galls on Ulmus
americana. Five of the specimens examined have the
eubital vein of fore wings simple (Cowen).

Schizoneura ainericana ltiley.

Fort Collins, June 17th, on Ulmus americana (Cowen).
Schizoneura lanigera Ilausm.

Boulder, Denver, Canon City, Delta, and Grand Junction,
on apple, common (Gillette). Hotchkiss, Delta County,
August 23d, on young shoots of erab-apple (Cowen).
Schizoneura gquerci itch.

“Wingless form: Largest a little over 1mm. long, very wooly, uniformly pile green.
except eyes Which are red, and black tip of beak. Beak reaching slightly beyond second

HEMIPTERA OF COLORADO 117

eoxae. Antennae smooth. No fully develuped individuals were obtained, so that the
determation is somewhat questionable.”

Hotchkiss, Delta County, August 19th, in wovly patches
on young shoots of Quercus undulata (Cowen).
Lachnus pini L.

“Length 3.15 mm., width 1.80 min. Legs and antennae slightly pubescent with short
fine hairs. Body scarcely at all pubescent. Rostrum extending . beyond middle of

abdomen. Lengths of antennal joints: III, 0.60 mm.; LV, 0.20 mm.; V,(.25 mm.; VI, 0.15
mm.”

Estes Park, July 15th on twigs of Pinus ponderosa var.
scopulorum (Gillette). These specimens differ from the
description given by C. M. Weed (Art. V. Aphididae, p 118)
in the characters given above (Cowen).

Melanoxanthus bicolor Oestl.

Fort Collins, September 30th on Salix (Baker).
Melanoxanthus salicis L.

Fort Collins, October Sth on Populus balsamifera var.
candicans (Baker). p
Chaitophorus negundinis Thos.

Fort Collins, common on Negundo aceroides throughout .
the season (Cowen).

Chaitophorus nigrae Oestl.

Fort Collins, June 21st on Salix longifolia (Cowen).
Chaitophorus populicola Thos.

Fort Collins, July 5th, on Populus monilifera (Gillette).
Fort Collins, June 24th, on young shoots on Populus
angustifolia (Cowen).

Drepanosiphum acerifolii Thom.

Fort Collins, July 2d on under side of leaves of Acer
dasycarpum. Flies quickly when disturbed in the warmer
part of the day (Cowen).

Aphis albipes Oestl.

Fort Collins, July 12th, on under side of curled leaves of
Symphoricarpos occidentalis (Cowen).

Aphis armoraciae Cowen 0. sp.

“Apterous viviparous female: Length of body 1.90 mm. Length of antennae about
119mm. Antennae, head, extremity of beak, femora, tarsi, and honey tubes, deep dusky

118 PRELIMINARY LIST

to black. Beak reaching second coxae. Abdomen plump and obtuse, dark dusky green,
with a marginal row of dots and otherwise barred and mottled with black on dorsum and
pleurum. Honey tubes cylindrical, slightly larger at base than at apex, length 0.20 mm
Style conical. Tibiae and upper portion of tarsi white. Younger individnals of a pale
reddish brown. Winged viviparous females: Length 2mm. Length of wing 2.90 mm.
Length of antennae about 1 mm., joint III 0.25-0.32 mm., IV 0.15-0.16 mm., V 0.15-0.16 mm.,
VI 0.12-0.18 mm., WII 0.23-0.27 mm. Head, thorax, and greater part of appendages
brownish black. Third joint of antennae with an irregular row of about ten sensoria,
fourth joint with fewer sensoria. Lateral tubercles of prothorax sometimes barely
apparent. Wings rather broad, second branch of cubital nearer tip of wing than to base
of first branch. Abdomen rounded and plump. pale yellowish brown, with small spots of
black on dorsum and a row of three larger round black spots on each pleurum. Honey
tubes about 0.18 mm. long, cylindrical, broadening at base. Style short conical, acute.
Tibiae and upper portion of beak white.”

Hotchkiss, Delta County, July 18th in large colonies on
the petioles of horse-radish (Cowen).

Aphis asclepiadis Fitch.

Hotchkiss, Delta County, August 1st in small colonies on
under side of leaves of Asclepias speciosa (Cowen.)

Aphis bakeri Cowen nN. sp.

: “Winged viviparous female: Length 1.80 mm.. to tip of wings 3.30mm. Antennae with
all the joints annulated, third and fourth joints strongly tuberculate and with numerous
sensoria, joint III 0.27 to 0.832 mm., IV 0.16 mm,, V 0.14 to 0.145 mm., VI0.10mm. A frontal
prominence between the antennae. Head and thorax black, venter green, dorsum darker,
appendages dark. Venation of wings normal, second branch of cubital midway, stigmatal
eurved throughout. Honey tubes short, 0.09 mm. long, and 0.045 mm, thick at the some-
what swollen lower third. Style 0.08 mm., long, conical.

Apterous female: Length1.7to2mm. Some of the smaller individuals are of a rusty
color. It resembles Aphis marutea Oestl.”

Fort Collins, June 20th, on stems of Trifolium pratense in
large colonies (Cowen).
Aphis brassicae L.

Custer County, midalpine, on cabbage (Cockerell, 10).

Abundant on cabbage wherever cultivated. Specimens
from Hotchkiss, Delta County, differ in being lighter in
color (Cowen).

Aphis cephalicola Cowen n. sp.

“Winged viviparous female: Length1.70mm.,totip of wings3.60mm. Head, antennae,
joints of legs, thorax, spots on abdomen, and honey tubes, dark. A large quadrangular
gray to green spot on dorsum. Back part of pronotum and most of abdomen yellowish.
Third joint of antennae tuberculate with numerous irregular sensoria, fourth with few
irregular sensoria, all joints strongly imbricated, joints III 0.33 mm., IV 0.14 mm., V 0.12
mm., VI 0.11 mm., VII 0.24 mm. Beak hardly reaching second coxae. Thorax arched,
Jateral tubercle present. Second branch of cubital midway. Honey tubes 0.10 mm.
Style about 0.66mm. Tarsi 0.10 mm.”

Fort Collins, June 30th, usually solitary in heads of
Trifolium repens (Cowen),

HEMIPTERA OF COLORADO. 119

Aphis cerasi Fabr.

Fort Collins, July 16th on under side of leaves of Early
Richmond Cherry, not abundant. Hotchkiss, Delta County,

July 28th, a single individual on the same host plant (Cowen).
Aphis cerasifoliae Fitch.

Rist Canon, July 19th on under side of leaves of Prunus
virginiana, causing them to curl (Cowen).
Aphis chenopodii Cowen 0. sp.

“Winged viviparous female: Length, not including style, 1.30 to 1.70 mm. Alar
expanse 4.60 to 5.20 mm. Head, thorax, and the larger portion of the appendages black,
thorax green. Antennae strongly annulated, with a few short hairs, third joint with
numerous irregular sensoria, succeeding joints of conspicuously less diameter and without
sensoria except the usual ones at tips of joints V and VI; joints III 0.30 mm., IV 0.16 mm.,
V 0.16 mm., VI 0.12 mm., VII 0.24 to 0.28 mm. A frontal elevation occurs between the
antennae. Beak about reaching the second coxae. Thorax arched, lateral tubercle small
or obso:ete. Cubital obsolete for only a very short distance at base, the base ot second
branch midway. Stigma rounded at apex but attenuate at inner end into the subcostal.
Honey tubes 0.12 mm., distinctly wider two-thirds of distance from base than at base.
Style constricted towards the base, with a few long hairs, 0.14mm.inlength. Legs black
at joints, shafts mostly lighter, hispid, with short hairs. Tarsi0.14mm. Apterous female:
Length 1.60-1.8:0 mm. Ovaland plump, green with black eyes. Antennae about 0.70 mm.,
third joint longest, the fourth, fifth, and sixth joints subequal.”

Fort Collins and Hotchkiss, Delta County, in July, in
pseudogalls on Chenopodium album, formed by the Aphids
locating on the upper surface of the leaf, causing the edges

to curl together.
Aphis eriogoni Cowen 0D. sp.

“Winged viviparous female: Length of body 1.50 mm., to tip of wings 2.732 mm. Head
and thorax black, abdomen lighter, somewhat hairy, femora mostly black, tarsi white
with black joints. Antennae about two-thirds the length of the body, joints III 0.40 mm.,
IV 0.20 mm., V 0.14 mm., VI 0.09 mm., VII 0.18 mm. Beak reaching third coxae. Second
branch of cubital midway. Stigmatal vein curved uniformly. Stigma long, attenuate at
basal end and acute at outer end. Border of abdomen nearly completely black, a sub-
quadrangular patch of yellow on dorsum. Style short conical. Honey tubes 0.10 mm.,
long, slightly incrassate. Apterous individuals: Smaller individuals bright red with
dark eyes, larger specimens nearly black, concolorous. Sensoria on third and fourth joints
of the antennae quite apparent. Abdomen with honey-comb like reticulations above and
below, often made more prominent by a white secretion. Interspaces about 0.02 to 0.03
mm, in diameter. Head also finely reticulated. Some parts of the thorax reticulated.
The winged individuals show this reticulation, but in much less degree.”

Horsetooth Mountain, July 24th, a good sized colony on
the stems and inflorescence of Eriogonum altatum. Speci-
mens of apparantly the same species were collected at
Steamboat Springs, July 13th on Eriogonum umbellatum
(Baker). These are somewhat smaller in size, perhaps due
to alcoholic preservation (Cowen).

120 PRELIMINARY LIST

Aphis gillettei Cowen nu. sp.

“Winged viviparous female: Length 170 mm. Antennal joints annulated, third joint
tuberculate with numerous sensoria, joints LEI 0.84 to 0.86 mm., LTV 0.18 to 0.23 mm., V 0.11 to
0.122mm.VIL023to080mm. A frontal prominence between the antennae. Keak nearly
reaching second coxae, about 0.45 mm long. Antennae, head, thorax, und greater portion
of appenduges black. Abdomen green, marked with transverse bars and with a marginal
row of dots of deeper green or black, shafts of legs light. Lataral tubercle of pronotum
small. Insertions of wings yellowish. Second brunch of cubitau: nearer to apex than
origin of first branch. Stigmu pointed. Honey tubes slightly enlarged at base, about
0.35 mm. long. Style 0.122 mm. long. Tarsi 0.14 mm. Apterous vivipurous female:
Length1.7)mm. Antennae about 1.10 mm. long. Pale green except eyes, tarsi, and tips
of honey tubes, which are black. Dorsum with patches of darker green. Body broad in
proportion to the length. Hceney tubes about 033 mn. long, cylinIirical. Style 012 mm.”’

Fort Collins, June 221, on Haltanthus petiolaris (Gillette).
Hotchkiss, Delta County, July 24th, on Helianthus sp. in
small colonies on the under side of the leaves (Cowen).
The same species was found on the under side of leaves of
Amarantus retroflexus, in colonies of one winged and two
or three small young, at Hotshkiss, Dalta County, July 26th
(Cowen).

Aphis heraclii Cowen n. sp.

“Winged viviparous female: Length 140 t01.509 mm. Head and thorax black, abdo-
men yellowish green with some deeper green spots on the dorsum, causing the whole
abdomen to appear deep green. Beak nearly reaching third coxae, 0.50 mm. long. Third
joint of antennae tuberculate and with numerous smiull sensorin, all the joints annul-
ated. the group of sensoria at apex of fifth joint conspicuously elevated, length of joints
III 0.35 to 0.40 mm.. IV 0.21 to 0.283 mm., V. 0.1) to 0.20 mm, VI 0.12, VII 0.27 to 0.31 mm.
Thorax archet, lateral tudercle of promotum smnuii. Second branch of cubital vein
nearer to the apex o° the wing than to the origin of the first branch. Legs light except
at the joints, length of tarsi0.l4 mm. Honey tubes 0.26 mm. long. Style 0.10 mm.”

Fort Collins, July 9th in colonies in the umbels of
Heracleum lanatum. A somewhat larger form of apparently
the same species was found in the umbels of Pastinaca

sativa at Fort Collins, July 28th.
Aphis maidis Fitch.

Fort Collins, September 14th on maize (Baker). Hotch-
kiss, July 27th on all parts of maize (Cowen).
Aphis iali Fab.

Hotchkiss, August 23d, colonies of apterous and winged
individuals on young leaves and shoots of apple (Cowen).
Fort Collins, on apple (Gillette).

Aphis medicaginis Koch.

Fort Collins, June 27th on Astragalus bisulcatus, prin-

cipally in the racemes of flowers, and on Glycyrrhiza lepidota

HEMIPTERA OF COLORADO. Lea

(Cowen). This may be No. 900 of the Custer County List
(see Cockerell, 10).
Aphis menthae-radicis Cowen nh. sp.

“Apterous viviparous femule: Length2mm. Head, thorax, und greater portion of
appendages black. Beuk reaching second couxe. Autennaue about one millimeter long.
Tibiae and upper portion of the beak white. Abdomen green, with a marginal row of
black spots and barred on the dorsum with black. This Aphis appears to be of a dull lead
color unmagnified. Honey tubes about as long as the tarsi, somewhat elongated at the
base. Sty'e short conical. Winged vivipzrous female: Size somewhat smaller than in
the apterous form. Of the same color and murking except that it is not so heavily barred
and dotted with black on the dorsum. Third joint of antennae with an irregular row of
sensoria, fourth and fifth joints with a sensoria, length of joints ILI 0.25 to 0.80 mm., LV 0.14
to 0.17 mm., V 1.13 to 0.14 mm., VI0.1) to 0.11 mm., VEI 0.20 to 0.25. Lateral tubercle of pro-
notum very short. Second branch of cubital midway. length of the wing 2.30 to 2.60 mm,
Honey tubes about 0.15 mm., slightly incrassate. Style short and conical.”

Hotchkiss, July 14th, on the roots of Mentha canadensis
and on the stems near the ground.

Aphis oenotherae Oestl.

Estes Park. July 1Sth on Oenothera biennis (Gillette).
Fort Collins, August 13th on Oenothera biennis (Baker).
Hotchkiss, July 27th, on Oenothera biennis; Crawford, July
29th, on Oenothera caespitosa (Cowen).

Aphis oxyhbaphi Oestl.

Fort Collins, July 26th on stems of Oxybaphus angusti-
folius (Cowen).

Aphis ruimicis L.

Fort Collins, June 27th on Rumex crispus; Hotchkiss,
July 2ist on Rumex crisptfs (Cowen). Very variable.

Aphis salicola Thos.

Fort Collins, June 20th on young twigs of Salix amygdal-
oides (Cowen). This may be No. 892 of the Custer County
List (Cockerell, 10).

Aphis valerianae Cowen n. sp.*

“Winged viviparous female: Length 1.8(-1.90) mm. Body black. Third to fifth joints of
the antennae with numerous irregular warty sensoria, length of joints [11 0.39., LV 0.24., mm,
V 0.21 mm., VI 0.18 mm., VLI 0.12-0.21 mm. Beak nearly reaching the third coxae. Lateral
tubercle of the pronotum prominent. Tarsi about 0.15 mm. Honey tubes about 0.19 mm,
Style 009 mm. Apterous female: Black; younger, half grown, with about six pairs of
white circular spots on the dorsum.”

Foot-hills five miles west of Fort Collins, July 19th, on
stalks of Valeriana edulis (Cowen).

*Measurements from specimens preserved in alcohol.

nO? PRELIMINARY LIST

Aphis veratri 0. sp.*

“Winged viviparous female: Length 2.20 mm. Length of wing 3.05mm. Color black,
the thorax somewhat lighter than the restof the insect. Anténnae about 1.35 mm. long,
the third joint with numerous rather large sensoria, fourth often with two or three
sensoria, fifth and sixth with usual groups of sensoria at the distal ends, length of joints
IIT 0.39 mm., IV 0.25 mm., V 022mm., VI0.14mm., VII 0.29mm. Beak about 0.60 mm. long
and reaching to the second coxae. Lateral tubercle of the pronotum prominent. Stigma
elongate, second branch of the cubital nearer the apex of the wing than to the base of the
first branch. Tarsi 0.12 mm. long. Honey tubes cylindrical, 0.28mm long. Style about
0.12 mm. long. Wingless form very dark.”

In south-west corner of North Park, July 22d very
abundant on leaves of Veratrum californicum (Baker). This
may be No. 895 of the Custer County List (see Cockerell 10).

Aphis yuccae Cowen 0. sp.*

Winged viviparous female: Length 2.2.0 mm. Head. thorax, and greater part of
femora, antennae and honey tubes, black; abdomen dull yellow with small black dots on
dorsum and pleurum. Third joint of antennae with numerous small sensoria, length of
joints ITI 0.42 mm., IV 0.25 mm. V 0.25 mm. V 0.23 mm., VI (0.15 mm., VII 0.30mm. Beak
black and nearly reaching the third coxae. Thorax strongly arched. Lateral tubercle of
pronotum present. Second branch of cubital nearer the apex of the wing than to the
origin of the first branch. Stigmatal vein curved for the first half and straight or
recurved for the remainder of the distance. Tibiae white, tarsi dark. Style conical,
hairy at the tip, a0.'t 0.15 mm. long. Wingless individuals from uniform dark green to
reddish yellow in color.

Fort Collins, July 9th on inflorescence and stems of Yucca
angustifolia.

This is probably the species found occurring on Yucca at
Greeley by Riley (see Riley and Monell, 1). It is also
perhaps the same species as that mentioned as Aphis
yuccicola n. sp. by T. A. Williams in his “Host-Plant List.”
Aphis sp.* A

“Winged viviparous female: Length 1.60 mm. Length of wing 2.99 mm. Color pale
Stigmashort. Honey tubes short and broad, about 0.9) mm. long. Style acute and about
as long as honey tubes. Apterous individuals with numerous black dots on the dorsum.”

Fort Collins, September 20th on cultivated radish (Baker).
This may be A. brassicae.
Aphis sp.*

“Winged viviparous female: Length 1.60 mm. Length of wing 2.70mm. Pale brown.
Veins robust. Honey tubes about 0.22 mm. long. Style slender conical, about 0.11 mm
long. Apterous individuals dark brown. Length about2 mm. Antennae 1.20 mm. long.
Honey tubes 0.30 mm.”

Fort Collins, August 6th, on cultivated radish (Baker).

Hyalopteris arundinis Fab.

Hwtchkiss, July 12th, very abundant on Phragmites com-

*Measurements from alcoholic material.

HEMIPTERA OF COLORADO. 1238

munis (Cowen).
Hyalopteris pruni Fab.

Hotchkiss, July 6th, on plum and prune (Cowen).
Siphocoryne xanthii Oestl.

Hotchkiss, July 26th, on underside of leaves of Xanthium
canadense( Cowen).

Myzus ribis L.

Fort Collins, July 9th, on leaves and young shoots of Ribes
aureum (Cowen).
Rhopalosiphum dianthi Schrank.

In college greenhouse, February 21st, on leaves and stems
of Calla Lily (Cowen).

Rhopalosiphum nymphaeae L.* ?

“Winged viviparous female: Length 2.20 mm. Length of wing 3.10 mm. Head and
thorax dark, abdomen lighter. Antennae on short frontal tubercles, third joint with
numerous irregular sensoria, no sensoria on the fourth joint, length of joints III 0.30 mm.,
IV 0.24 mm. Beak sbout 0.55 mm. long. Lateral tubercle of pronotum small. Stigma
elongate, widest at the base of the stigmatal vein. The second branch of the cubital near
the apex of the wing. Tarsi 0.14 mm. long. Honey tubes clavate, 0.35 mm. long. Style
about 0.13. mm. long.”

Fort Collins, September 15th, on Sagittaria variabilis
(Baker). This species is doubtfully referred to R. nym-
phaeae, as a description of that species is not accessible.

Nectarophora artemisiae Cowen 0. sp.*

“Winged viviparous female: Length 2 mm. Wing about 3.10 mm.long. Head and
thorax black, abdomen somewhat lighter with the upper dorsum marked with four
longitudinal rows of black spots. Antennae on distinct frontal tubercles, about 2.90 mm,
long, third joint with numerous small sensoria, length of joints III 0.65 mm., IV 0.55 mm.,
V 0.50 mm., VI 0.15 mm., VII 0.80 to 0.99 mm. Beak about reaching third coxae. Thorax
arched. Stigma dark, elongate. Honey tubes 0.55 mm. long. Style 0.20 mm. long and
curved upwards. Tarsi 0.20 mm. long.”

Estes Park, July 19th, on Artemisia tridentata (Gillette).
More Aphis-like than most members of this genus.

Nectarophora asclepiadis Cowen 0. sp.

“Winged viviparous female: Length 3.20 mm., to the tip of the style. Length of wing
4.50 mm. Head, prothorax, abdomen, and style uniform green. Mesothorax yellow,
appendages mostly dusky. Eyes brown black. Antennae longer than the body, third
joint with about ten or twelve sensora in one row, length of joints III 0.90 mm., 1V 0 85mm.,
V 0.70 mm., VI 0.20 mm., VII 110 mm. Beak black tipped, hardly reaching the second
coxae, about 0.50 mm. long. Honey tubes about 0.80 mm. long. Style long cylindrical.
Apterous viviparous female: Length 3 mm., to the tip of the style. Uniformly green,
eyes brownish-black, honey tubes and style of the same coloras the abdomen, Antennae

*Description from alcoholic materal.

124 PRELIMINARY LIST

about 3.80 mm. long, with a few short capitate hairs, and a few sensoria on the third joint.
Beak reaching the second coxae, tip black. Legs and antennae dusky. Style long and
falchion sharp ”

Hotchkiss, July 24th, in small colonies on underside of
leaves of Asclepias speciosa (Cowen).

Nectarophora erigeronensis Thos.

Fort Collins, July 22d, on Lactuca pulchella (Cowen).

Nectarophora rosae L.

Estes Park, July 16th, on rose (Gillette).

Nectarophora rudbeckiae Fitch.

Fort Coliins, July 18th, on Solidago; Hotchkiss, on an
unknown composite (Cowen). No. $96 of the Custer County
list may belong here (see Cockerell, 10).

Nectarophora sp.

“Winged viviparous female: Length 2.50 mm. To the tip of the wings 4.75 mm. Color
green, thorax yellowish. Third joint of antennae with a slight row of sensoria, remaining
joints smooth except for a few short hairs, seventh joint annulated, length of joints IIL
’ 0.62 mm.,1V 048 mm., V 050 mm., VI 0.10 mm, VII 100 mm. Stigma short and broad.
Honey tubes imbricated, cylindrical, 0.35 mm. long. Style 0.145 mm. long. Apterous vivip-
arous female: Length about 2.6 mm. Mostly green. The eyes, ends of joints of anten-
nae, tip of beak, and tarsi, black. Lower ends of femora, and tips of honey tubes darker
than the body.”

Fort. Collins, July 21st, on Gaura parviflora (Cowen).
Nectarophora sp.

“Only wingless individuals, singly, or in small colonies. Wholly green, except that
the eyes, tarsi, and ends of joints of antennae are black. Antennae longer than the
body.”

Horsetooth Mountain, July 23d on Arctostaphylos uva-ursi
(Cowen).

Neetarophora sp.*

“Winged viviparous female: Length 2.70 mm. Color apparently uniform green.
Stigma elongate, sharp pointed. Apterous femaie: Length 3.20 mm. Antennae longer
than the body. Beak short, not reaching the second coxae. Honey tubes about 1.00 mm.
long. Style 0.45 mm. long.”

Estes Park, July 16th on Epilobium spicatum (Gillette).
Nectarophora sp.*

“Winged viviparous female: Length 2.20-2.40 mm. Wing about 3.40 mm. long,
uniformly pale, perhaps green, in life. Beak short, about reaching second coxae. Third
joint of antennae with a number of round sensoria, length of joints II! 0.60 mm., IV 0.48
mm., V 0.43 mm., VI 0.16 mm. First branch of the cubital closer than usual to the origin
of the cubital. Honey tubes 0.65 mm.long. Style about 0.25 mm. long.”

*Descriptions from alcoholic material.

HEMIPTERA OF COLORADO. 125

~

Fort Collins. September i5th on Mentzelia nuda (Baker).

2) | have also taken a very anomalous Aphid, for which I can give neither generic nor
specific determination, forming a gallon the leaves of Arctostaphylos uva-ursi. Oneside
of the leaf is turned back and thickened for about half its length, thereby forming a
smooth oblong gall about 10 mm. long and 3mm. in diameter, which is often of a reddish
color. Only apterous individuals were observed. Length about 1.50-1.80 mm. Beak
reaching the second coxae. Antennae six-jointed, the third joint longest, the sixth
second in length, all of the joints beyond the third with many fine annulations, sparsely
hairy; the antennae would reach a little beyond the base of the wings. Honey tubes
very small, broader than long, scarcely elevated above the abdomen. Legs short. Body
elongate, dull green, legs a little darker. Individuals examined later in the season,
which were evidedently pupae of winged forms have the body more ovate with numerous
short hairs. Antennae distinctly seven jointed and about one-half as long as the body.
Honey tubes somewhat longer.”

Foothills five miles west of Fort Collins, July 19th
(Cowen).
Aleyrodes pyrolae 0. sp.

Pupal seale. Length 1.25 mm.; width 1 mm. Color very paie straw yellow, some-
what darker toward the center. Elliptical, slightly broader at the center. Margin en-
tire, without fringe. Within the margin all around, finely and densely wrinkled, the
wrinkles extending radially inward about half way to the median
line along the sides. Central portion with fen more or less well
defined horizontal folds. Folds on anterior half, four in number,
first semilnnate, remainder linear. Lineseparating first and second
folds obtusely angled in center, the angle directed caudad; line
separating second and third straight; line separating third and
fourth obtusely angled cephalad. Folds on posterior half of dor-
sum linear and six in number. the line separating the first and
second folds with extremities bent cephalad; last three folds bent
caudad at extremities. Anal plate darker than surrounding
surface. unequally triangular, the longest angle directed caudad,

Described from several scales of different
ages. Four-mile Hill eight miles south of
Steamboat Springs, July 19th on Pyrola rotunditolia
(Baker).

Coceus cacti L. var. confusus Ckll. Det. Cockerell.

Probably this species (Acanthococcus confusus) in the midalpine of Custer
Sounty (Cockerell, 10).

Manitou, September 27th on Opuntia (Gillette).
Rhizococcus i. sp.

Under a rock at West Cliff, April 23d. Naked, pyriform, 2.25 mm long,
dull lilac, legs clear red-brown. antennae reddish-brown. Caudal filaments
short, but distinct (Cockereli, 10).

Dactylopius citri Boisd. Det. Baker.
On Habrothamnus and Solanum jasimoides in the college
ereenliouse, September LOth (Baker).

126 PRELIMINARY LIST

Dactylopius solani Cockerell. Det, Cockerell.

Fort Collins, August 23d on roots of Solanum rostratum
(Baker). Questionably this species on the crowns of sugar
beet roots at Grand Junction, August 26th (Gillette).

Kermes galliformis Riley. Det. Cockerell.

Manitou, November 27th on Quercus undulata (Gillette).
Kermes gillettei Cockerell.

“Scale of female 8 mm. long, 7.5 broad, 7 high. Distinctly sesmented; dorsum with
rounded tuberosities, not very shiny. Scale covered with minute dark brown specks.
Genera! color ivory-white and dark brown mottled, the extent of the white or the brown
variable, but usually a distinct white dorsal band, and more or less broken-up subdorsal
ones. Derm by transmitted light reddish brown, with large oval gland-pits. Young larva
very elongate, subfusiform. with the greatest breadth anterior to the middle; pale
purplish pink. Caudal tubercles large and broad, each presenting two stout bristles, of
which the inner (mesad) one is much the shortest. There is also a moderately long bristle
on the outer side of each tubercle, nearits base. Segmentation distinct; each segment
with a short spine or bristle on lateral margin. Antennae cylindrical, hardly at all
tapering, 6-jointed; 3 and 6 equal and longest; 4 and 5 equal and shortest, these being
about as long as broad; 2 very little longer than 4. and very much shorter than 3; 4 almost
as long as4plus5. Last joint rounded at the tip, bearing several hairs. Antennae color-
less. Rostral loop extending beyond base of third pairoflegs. Mentum at least two-
jointed. Legs quite ordinary. Claws long, sharp, and alittle curved. Tibia short.

Hab. Manitou, Colorado, U.S. A., on twigs of Quercus undulata. Collected by Prof.
C. P. Gillette. Very distinct from K. galliformis, Riley, the only Kermes hitherto
described from North America. Its nearest ally is evidently Kermes gibbosus, Signoret,
which was found on oaks near Vienna.

The larvae described above were found inside the scale of the female.”

We copy the above from a separate of Mr. Cockerell’s
paper in “The Entomologist,” which bears no date. The
practice of pubhshing original descriptions of single
American species in foreign journals which are to a large
extent inaccessible to American entomologists, cannot be
too strongly condemned.

Physokermes coloradensis Cockerell.

“Pemale scale with the same general shape as P. abietis and attached in the same
way tothe twigs. Diameter 7mm., smooth, shiney, rather pale brown, inflated, subreni-
form, with a median constriction. Derm yellowish brown, reticulate, the reticulations
hexagonal. Large gland-pits looking like perforations. Mouthparts small, rostral loop
short. Legs not to be found, apparently absent in the adult. Antennae small, six-
jointed, but the joints obscure. Last joint with several hairs. Joints subequal, except
the second and fifth, which are shorter; the second shortest, bearing a long hair; fourth
perhaps a very little longer than third, and longest; fifth constricted, simulating second
joints, the second of them shortest.

Habitat Manitou, Colorado, November 26th, 1894, on Pinus edulis. Collected by Prof.
©. P. Gillette. It is attacked by a brownish Chalcidid parasite.

From European P. abietis it is distinguished by its size and by the antennae. No
species of the genus has hitherto been found in America.”

This species was described in “The Entomologist” with
the preceding species. A spruce should have been given as

HEMIPTERA OF COLORADO T2¢

the host plant instead of Pinus edulis.

Orthezia annae Ckll. Det. Cockerel!,
Delta, August 30th on “greasewood” (Gillette).

Orthezia occidentalis Doug}. Det. Cockerell.

Custer County, midalpine, in the nest of a dark brown ant with large head
and shiny abdomen (Cockerell).

Near Fort Collins, at various times under stones in
company with certain ants (Baker).
Lecaniodiaspis yuccae Twns. var. rufescens Ckll. Det. Cockerell.
(Prosopophora rufescens Cockerell).

‘

Grand Junction, October 18th, on “greasewood” (Dr. 8. M.
Bradbury, President West Coiorado Acad. Sci.).
Pulvinaria bigeloviae Cockerell.

West Cliff, Custer County, June 16th, on Bigelovia (Frank Cusack—see
Cockerell, 10).

Pulvinaria innumerabilis Kath.

Denver, June 10th on box-elder, locust, and soft maple
(John Tobias). Common on soft maple and honey locust at
Fort Collins.

Lecanium (Bernardia) hemisphaericum Targ. Det. Cockerell.

College green house, May, on Neprolepsis exaltatus and a
liliaceous plant (Baker). Denver, November 24th on Cycas
in green house (Gillette).

Lecanium hesperidum L. Det. Cockerell and through Howard

College green house, September 10th on Arala, Abutilon,
Ficus elastica, and Rhynchespermum jasimoides; Fort
Collins, in open air on Veronica hendersonii (Baker).

Lecanium longulum Dougl. Det. Cockerell.

Denver, November 24th on rubber tree in green house
(Gillette .

Lecanium (Bernardia) oleae Bern. Det. Cockerell and through Howard.
College green house, May, on Solanum jasimoides (Baker).

Denver, November 24th on Platycerium in green house
(Gillette).

128 PRELIMINARY LIST

Lecanium perforatum Newstead. Det. Cockerell.

Denver, November 24th on Raphis in green house
(Gillette).

Lecanium sp.

Manitou, September 27th on rose (Gillette). Regarding
this species Mr. Cockerell (in litt.) says: “It seems not to
be rosarum, or the Santa Fe species, for its antennae are
seven-jointed. In the Santa Fe species the antennae have
eight joints. The antennal formula in your Manitou insect
is 3 (24) (17) (56).”

Leeanium sp.

Manitou, September 27th on oak (Gillette), Regarding
this species Mr. Cockerell says: ‘The antennae are eight-
jointed and the antennal formula is 3 (24) (18) (567).”
Aspidiotus aneylus Put. Det. through Riley.

Canon City, April 30th abundant on pear (G. M. DuBois).
Aspidiotus camelliae boisd. Det. Cockerell,

College greenhouse, September 10th on Japanese Quince,
Aralia, and Ficus elastiea (Baker).

Aspidiotus dictyospermi Morgan. Det. Cockerell,

College greenhouse, September 10th on Champaeropsis
elegans (Baker).

Aspidiotus ficus Ashm. Det. Cockerell.

Denver, November 24th on Phormium tenax in green-
house (Gillette).

Aspidiotus howardii Cockerell. Det. Cockerell.
Canon City, August 31st on fruit of plum (Gillette).
Aspidiotus nerii Bouche. Det. Cockerell.

On lemons exposed for sale in the shops (Cockerell, 10).

College greenhouse, September 10th on oleander and
Dracaena (Baker). Fort Collins, December 28th on Califor-
nia lemons and oranges in the market (Gillette).

Aspidiotus perniciosus Comst. Det. Cockerell.

Fort Gollins, December 30th on California pears in the

HEMIPTERA OF COLORADO 129

market (Gillette).
Lepidosaphes (Mytilaspis) citricola Pack. Det. through Howard.

On lemons exposed for sale in the shops (Cockerell, 10).

Fort Gollins, May, common on “rusted” oranges in market
(Baker), and December 28th on California oranges and
lemons (Gillette).

Chionaspis pinifolii Fitch. Det. Cockerell.

Fort Collins, October 6th, abundant on spruce; Manitou,
September 29th on spruce (Gillette).
Chionaspis ortholobis Comst. var.

On willow at West Cliff, as C. salieis L. (Cockerell, 10).
Chionaspis ortholobis Comst. var. Det. Cockerell.

Denver, June 10th on cottonwood (John Tobias).

In regard to the above record Cockerell (in litt.) says:—*The Wet Mountain Valley
salicis recorded by me, was not true salicis but ortholobis var.”

Regarding the spevies ortholobis and salicis Cockerell (in litt.) further says:—‘If you
look at Comstock’s descriptions you will find that he alludes to a difference in the

position of the median lobes of ortholobis and _ salicis. .
Ortholobis has these lobes close together (see figure), ;

whereas salicis has them divergent (see figure). Now we \

have a specimen of ortholobis from California, from Mr. B,. aN fs

W. Griffith, which shows the lobes close together as SaliciS

Comstock describes. But your Denver species show them
wide apart, asin salicis. Yet your Denver scales are like
the Nebraska ortholobis (see my article in Can. Ent.) to all
outward appearance, and are not like salicis. But at this lan lan

point we prepared some English salicis, from Mr. Newstead,
and they have the lobes close together as in ortholobis.
All this seems rather to confirm what I haye suspected for some time, that tlie so-called
salicis of this country ‘s not salicis at all, but a distinct species. If so, the synonymy of
the species discussed will probably stand thus:

(1.) C. salicis (L). Europe.

(2.) C. ortholobis Comst. U.S.

(3.) C. salicis-nigrae (Walsh.) U.S. or ‘equals ’salicis Comst., not L.

It is by no means clear, however, that your Denver scale is specifically distinct from
the Nebraska one, which we are calling otholobis (vide. Can. HMnt.) and as it is certainly
not true European salicis, I should advise you to call it C. ortholobis var. for the present.”

Aulacaspis boisduvalii Sign. Det. Cockerell.

Denver, November 24th on palm in greenhouse (Gillette).

Ortholobis Aster Chl.

Palaeococcus simplex Scudder.

Fossil at Florissant (Scudder, Tert. Ins. N. A.).

SUM ENae

Number of species previously reported froin the state...............0:-0..... 298
Number of additional species reported in this list....................... 349
Total number of described species known to occur in the state........... 647
Ceneramnysne st). s sascke thea: osu iss 36) Sad oO eae eee eee 261
INeGwacenera: GeSCTIDOM. << 28. : oss aacaw asses Gos «eee oe ee ee i)
INJGWASDEGICS eSCEIDCOs :% fors cs vc acon Sema ele oe Lee EE ene oe ree 111

ERK IMA:

On page 64, in seventh heading for Cidada, read Cicada.

On page 85, in sixth line from bottom, for Gillette read Baker.

On page 118, line 29, for marutae read marutea.

On page 119, in fifth line from bottom, insert (Cowen) after Eriogonum
alatum (not altatum). In line four from bottom for apparantly read ap-
parently.

On page 120, line 28, for promotum, read pronotum.

On page 124, sixth species, for Neetarophora, read Nectarophora.

MN SHE I Whe

abbreviata...... : Pa Ghavnehes Baoonse wee 12 DikaClatal see : 111
abbreviatus...... Kc) “ements occ ecuec 30) bigeloviaee.-...- : 127
abdominalis ..... 104 vanmulatal 25. 2: WL Jovy oa o eet ; 9
ADICCUUS eee. - 70 annulatus....... 51 bilineatus....... ‘ 85
ANCAWNTOWE, 5 oh onoe 96 annulicornis ..... dp) DimMAaculatuse) ses. 86
ACNE 5 6 opacoe 117 annulipes....... A (53, OMUM OLIN). «a5 6 Gbos 70
INCOMES boobs 59 antennator...... ily lonwoxeiwleniel eco a5ee 12
Acinopterus..... 94 Anthocoris ...... by Jorhat S665 ccb0cc 29
Acocephalus..... 88 anthocoroides ... J) IBIS) Soe ctoodso~ 23
acuminatus...... 94 anthracina...... ‘ 10 bohemani........ 24
JNCUIUPINE. . co oced - 67 Aphalara......... 14-11) baisduvalii. 2.2... 129
acutissimus ..... : ee eACD HIS 7.5 heteran 119-122 BRoltegia......5..- al
ACUUGUS Meese ot: 57 Aphrophora...... Zl VoORENS oc eccce = 23
ACMI JJ 55 sage ome oi EN OVENAUIS 3 6 Goan oos 53 brachycerus ..... 29
admirabilis ...... Patt SGVONCCEN IIS. toe a wee 18 Bbrachytropis .... 28
JNO else Seer eeenes 14 Apiomerus...... OOM bractatus ees ssee 46
aeneifrons....... OES AT AUS ee eee 57-08 bracteatus ..... ae 12
ACHMALS 5325222 .. 15 Archimerus ..... NA (OASISNIEE,. no acc5 ce 3 118
affiguratus..... Ae 50 arctostaphyli..... 1!4 Brochymena..... 14
HiT 5 osae ao ooSe COMmeAnG Ud) td aes eee 57 Bruchomorpha .. 17
AMM, Sooo ae Ser Gi! “ByKEMRNIE) 22 Gobooc 1055) bubalusiese eae ? 65
ALUMI Sh tse clots 3 2 84 argenteolus...... SD DUA Sean 23
JN@E WINE Se cab peice 80-81 arenarius ,....... 25 Bythoscopus..... 72
Agalliastes ...... d3-54 arquata.......... 68

SUOMI eye eyee srs << 46 artemisiae........ 23 C
Agrammodes.... 56 artemisiae ...... ; 91

albipennis....... 10) ehebiinw@linalis)5 455 SB. 22 GAC. se aereiee 125
Mileyrodes)-2-.... 125 asclepiadis...... : Mit} CRKESRYP s cn co cusue: 31
PAU VOSS Se eres cs 91 asclepladis..:..:. 23 Galcdrauaneeeeeeere 28
altermatus ....... S) GIDE do a cccec LOM Galcaralotimesenr 17
altermatus ......- 73 Aspidiotus ...... 128-129 californicus...... 21
PAULVICIUS alesis oe. << ile) PSSOPIRITSS. = 65.50% 54 californicus ..... 46
Ambrysus....... 63 Athysanus. .. 91-938 Calodemas......- > 33
amelanchieris..... 115 Atomoscelis...... 52) CalOGOnismer eres : 34
americana....... IIE Ke) ee eA Bi ala bo LO Caliuhiaey se eee - 114
americana ...-... y ONY Valrauar eee WIBY) GENIC Woman cee 6 ole 17
aMeniGamdme cs. - Son salrlCOLMIse wanes Ome Galivianye- see ase 63
americana....... 116 atridorsum...... dey Calvi ara sss. 67
americanum ..... 63 Aufelus ......... 20 camelliae....... ‘ 129
americanus...... 38 Aulacaspis ...... 129 campestris....... By)
americanus...... DOmecUIC CUSte en ee ae 85 Camptobrochis... 38- 39
Ammnestus....... 11 aureo-viridis..... 1°08 Compylenchia.... 68
SNOKOING: oy ono BAe 29 UTE GLS Weyer See eee 95
AMOSCMUS) | sen. =<: 47 B (CAV ATUNEE SF oe once : 14
AMOEDUS .-.... Apc 74 Carpocoris....... 16
antevolens...... ; Syn | ee P55 e doo ne Wis. Cavorhintha tere. 18
anthracinus ..... OIF (Bbanasaeeeee cece 17 celtidis-umbilicus 114
ATES) Oe oA ater ile} SPUN. woccadneoc 38 cephalicola...... ‘ 118
AMGVMISE ee cerca << Be Oasa lis ee aie S08 COLASIL a) see a4 119
angulatas........ 83 belfragei......... 19 cerasifolii....... C 119
angulatus ....... Ads) Wel ee reas ete Gi SONGS ae att ar 65-66
angulatus ....... 538 Belostoma....... 63 Chaitophorus ... 117
angulifera ...... : ils eBermandiideass sce 127 Chariesterus ..... 17
angustata ....... 42 tricinctura...... . 65 Chelinidea...- .. 17
angustatus ...... Pal loyeXoMWore 6 koe Ae 117 chenopodii...... é 119
angustatus...... : OCSmaDIChIC see P Ae AON ERINICS..* ape ere 115

angustipennis.... 114 bifasciata........ 72 Chionaspis....... 129

132

CIMOGISHeeeeeee soe ee 40
@hlonizaneeeeeeee 46
Chlorotettix...... 103
(CIIGRIGIR}. « Wacancescsnen 64
@icadulasese nee 105-107
Cilabaieeserte.c «oct 10
(CHINESE cocosaneee Cae 57
@imctusiey. 5.6... 28
CINChUS aoe... ..: 59
CINEREA ao. ees cies 56
GIMCTCA) Ges). eae ss 83
GIMETEUS 8y.0, . cso « 4
cireumeinctus ... 27
Cluck os ae 5
ChiaOOlBy so54 08506 129
CluEIMIrONS) .4. 25 - 5
(Oh: HUIS ao eee ee 68-69
Glanividareee- 4-6 100
Clastoptera...... 70
GIBWICNOS . 55666056 12
Claw enamine. 24
ehiteliianianss. sc. -- 96
Gly Weenies coo oases 108
Cnemodusme.-..- 25
coagulatus....... 50
WOCCUST Be a. shoe 125
WOCNMS)..4..-<-.< 15
coerulescens ....... 10
OOO 6a coos deere 32,
Colophiat a....- 116
coloradensis ..... 91
coloradensis ..... 126
coloradensis ..... 113
COMMES BE sen s.ccers sc 111
(COMMING) -.cd6nenaee 92
communis ....... 32
Compsocerocoris. 33
concentricus..... 87
CONCINNUS ......- 61
configuratus...... 87
confluens......... 12
confluens........ 30
confraterna....... 30
COMMMUSUSS es see 104
COMMUISUSI |... 125
COMAREXe 555550586 45
GOMOTUNUIS eee... = 11
Conomelus ...... 69
Coquillettia ..... 48
CONSOLES. eecieee by;

consimilis ....... 69
CONSpersus ...... : 19
conspicillaris .... 14
CONSRICTUSe..e ocr 2

COLCWIUS. | 4+ eee 17
(KOMMENKSE Fs boo aoe 62
Corimelaena..... 10-11
(CORE 6 aatieswaaes 63-64
(COMECUS ss6equecc 58-59
(CORWANES 2a 54c8n06e 20-21
ORV] Ss. te cesses ke 113
Corynocoris ..... 17

PRELIMINARY LIST

Corythuea <...... a7
Cosmocoma ..... 66
Cosmopepla ..... 14
COStalisieaeanee oe 81
COMES 6 5c55000 56
CGROCCIPES eeeeeee 45
Crophiisieeseaer 2:

cruentifera ...... 65
CUO) <5 c5 5000000 12
curtipennis .....: 92
CULTS eee 18
GWU oo sosaue 68
CUSTATOI eee 16
@iy.dimu Stan ee 11
(‘ymodema....... 23
(Cami Sieeeeeerrocre 2:

CVAMMGUWISE ooca0Gc00- 12
Cyntolobusmeseee 67
Cyrtorrhinus .... 43

D

IDEXGOUB) asec bocasc 44
Dactylopius..... 125-126
DarmMistusi a. ce: 19
WD ASVCOLIST eer eee 19
@ebilliseaseeercer 43
G@ebilisse ep eeeeer 58
Geiss ener 87
GECOlOM- eee ene: D4
decoratus........ 23
delicataeceere-cer é 70
ONE soos Soonosc 15
Delphacinus ..... 69
Deltocephalus ... 84-90
diadema ........ ; 59
Giiaimithiieeeee eee 123)
Diaphnidia....... 43-44
CHVOEIROS descancocc 66
dictyospermi .... 129
ID IKONS sone oose 46
Gudyimuseeseeeree 22
Diedrocephala .. . 2
GIGUSTISH eee 35
GUUTTWEWIS sc o5a5sec 38
Giimiudiataseseeeee 1%
Diommatus 2.2: 44-45
Di plodushe seer ; 60
CMEOONGR, sosdcacar 29
disconotus....... 24
GISPeNSaeenaseee 62
GIStinetuUStee sane. 17
GuUStiniGius! eeu eee 75
Givasateee eee 40
GUNABEY Soe85.000506 106
COGS aS eee 24
COMSAUINS os San cones 69
O\OEERIBD S 5 clo ooacot 6

Dorachosa ....... 26
Drepanosiphum . 117
GIUOUE ssodoncoocs 13

EB
Eecritotarsus .... 40
COMMUNI 65 550 ac 66
emarginata...... 96
Himblethis asses 25
Empoasca. . 107-111
GOUO ON 5 5 scosocs¢ 114
IBpPISCOPUS s+ eee ol
Eremocoris ....... 26
erigonensis...... : 124
EHO Goon cd oabox 119
erythrocephala.. . 72
pall plSEeeeeeee 66
Euphyllura...... 114
SWUANNUIS 55500505 18
CUnySastenss. eee oy
USchistustaeecee 14-15
Eutettix......84, 101-103
GxapUUSa. ee eee 12
OXCUGU Saas ee ; 24
EXiUOSdEEe eer 100
ExpPletaames. oe 63
ExtENSamee., ener 10

KF

Taceban devant ck 15
LACEEUSH eee Pati
lS Cliciuclace erate 58
FAS CLAGUUIMI eee Bi)
fenestratus....... 6

fenestratus ...... 72
fCrusSiseechwcsaces 26
AGTUSI Aerie ies ae 58
LESLIMNG tees eRe 66
bicandaeeeeeeee 18
HOWE) co s500c00% ane 129
IMILKCHIS: 36.64 soo5 ose 3 40
fSStl Se ; 14
JOGO, onebeccove 59
flavicapitata ..... 96
flavilineata ...... 83
flaviventris...... 60
flavimarginata... 96
flavimarginata... Il
flavovirens....... 87
iOVRNNIS 44,5500 0086 26
IMI@INCIBIS) se scacanc 69
franciscana...... 66
franciscanus..... oe 69
fraternus,........ 26
FALLIN Serer dL
TOMA GOAUICO 546 oc 115
fuliginosus ...... 23
AUOMUGUS Sees ‘ o4
fumipennis...... 73
US CLO 57

G
Galgulus ....... : 62

HEMIPTERA OF COLORADO.

Palliformis .... ;. 126
gammaroides..... 93
Gargaphia....... 57
geminata ........ 98
geniculatus...... 60
Geoconisen ee 23-24
willetteis a. denn ; 12
milletiel. acc. -- 66
Pillettel. samacs ss 69
gillettel....... ie 8
CUlletvela ae aaa 119
Pillettels she onc. 118
eilletten. 6 35 .9.- 120
PULOCLEL.< scien 5 : 126
PIUDICEPS. ci vee. =. 42
Gnathodus.......104-105
goniphorus...... : 38
rae ish sce se 42
grammicus ...... y
SNAMMIS hs. cere Six: 38
OPISGUS! sacece cies Ze
OTOSSUSaere le rss 68
SUMGUU Awe oer as 18
guttulatus ....... 48
TMUGVACLPES sae) - 35
Gypolldieecen. 4. 83
H
Hadronema...... 31-82
haematoloma.... 21
Ealticuss....2... 46
Harmostes....... 19-20
MPAUGETS Weyeve ous¥e +5) 114
Tel@ OWS soc oo Beae 6
Helicoptera...... 69
J (2) bh 1 eee 67
Helochara......... 32,
hemisphaericum.. 127
ineneyelbil con eoeoe F 120
INGEACUS:c2-.4---. 24
MESPOLIA < e-.. . 44
hesperidum...... 127
hesperius ........ 46
hesperius ... 68
hieroglyphica. . 81
hirundinis ....:.. 56
MIStRIOMICa......- 17
Holeostethus..... 16
Homaemus..... : 9
Homaloporus.... 1]
INOMMNN, 5 66 Geaocting ae 62
OW CLM ces ea eto = te 66
INOW naace cess esas 129
humeralis.......... 13
IOUS rcecceces eens 19
RAULTUDIIN Se sate 40je0'0 5 62
hyalinus ..... ie 20
Hyalopteris ........ 122-123
Hygrotrechus .... HO
Hymenarcys -_.. 15

ictericus
MOOCELUS 63.5 .)-sceas
° . t
illuminatus........
Ma CGonaeseses
immistus ...
impictiventris...
impressicollis.....
upunelame
incerta .
inconspic wa
inconspicuus
OVEAMOUS) crosecols o Onc
MWR cc 5 coor
innumerabilis....
IBAOPOS dopasonseacc
inseripta
INSELIUPUUSeeeeeeae
insidiosus..........
ASTON Seestenee ee

MSSM Sone oBaKo4e 2
OSTA), caansae oC
MUSTO MTS ete

insitiva . Aan
NDS OMS ery oneresaee
insulata oe
intermedius ..... :
interruptus
interruptus......
interspersus......
interstitialis........
TUAW ANEUES) 456 ao ono

MEF ORAUStereseeeesse
Ischnorhyichus .
J
MACCTA cc aac eee
Daly SUStee cee so.
TaSSuUSi 4 8 ae
yukebaxdliRy 2 goers
juniperina .......
K
ASEVITINTN sc eeegnye eee
ea limi & Sse eee

kennicottil.........
TINERIMNES eee
Ky DOS haces ssc maton:

Labopidea.......
Labops
Lachnus.
lachrymalis......
lAGtal eee. tecnaice
LACUUS ences

laevis
Lamenia

lanigera
Largus
lateralis
latenalisies rea
Lecaniodiaspis Ae,
Wecaniuulmy os aae-
lectulantamjase. ae

Lepidosaphes ....

Weptocoris:.. .4-
Leptoglossus.....
Leptoterna
Lepyronia........
leucopterus......
Liburnia
iP ataieneis setae
iy ROCORISHeseee
limbata
Homi basse sereeee
limbolarius
Limnoporus......
Limnotrechus....
Limotettix...... :
Vea Sie eee
Lioderma .......
Otro piss sereer
lbnivay ecco be :

L omatopleura oe.
lonoucollisieeeaee
longicornis.......
longipennis......
longiseta

Wopideareee ase.
NUON Seeeeseer aes
URI CUS eee ;
Titi Gu Sweeesese
Galen

Lygus

Macrocoleus .....
Macrotylus... ..
Macrovelia.......
maculatus
maculicollis......
maildis
mali

aie tee 0. 60 le ase

MEAT ON aac es cosets
marginata
marginata
marginatus ......
marginatus ......
Margus. PSA Ee
Maurod: Xe ctylus *
MaVOLbUS lo... -.
IMOCIAL tc ing oe

se ee see

135

116
28
U1
20

127

.127-128

Db
129
21
17
29
71

0?

mie)
60
15
24
51
23
16
61
ol
100
Tu

27-28
35-386
16

134

medicaginis ..... 120
Megacoelum....... 35
Megaloceroea .... 28
Melampsalta 65
melanocephalus . 14
Melanocoryphus.. 27
melanopleurus. ... 27
Melanoxanthus. .. 117
melsheimeri..... 88
TMOVSIMC UCR) So446 aboneen 18
menthae-radicis. . 121
MeExTCaNa ........ 63
MMCRAMUUM Asse... 6:

Miecnoveliiass....... 61
MOVING HEUS, ceanobesasden 31
VIAN VitSee eters acs.z seo 5Y
TAMILTMNO WS asoopacconde 76
JM OTIENIS 5 eos 2,
MENTS oon 6 eaoen 22
VINEE Steep sc: ats ee 28
TOMOGKEIG, Gooemeeic 65
MMOGESUUS ee. = =o 13
MNOCTENS a2. cee D1
TAOKONIN EYES: o oe ebeeecon 82
Monalocoris...... 40
TINO MUA Sexes. < 99
MMNOMELC Olam nee... 67
MNOMIULCOlaee.. =. 6. 88
Mormidea....... 14
multispinosa..... oo
MEO aia. ss oF 17
MOUSCUWINWS ess. se YS)
HMO WISs 65 5 aos aor 19
Myodocha......... 2

IMOWINCUNS. Cee aac oe 69
Mytilaspis....... 129
INTGVZAUSiyereeetercisy so. 123

N

nebulosus. . 25
nebulosus ....... 38
Nectarophora ....123-124
negundinis....... Lhe

negundinis....... 117
INGIGES =. 22.5... 19
Neoborops...... 3 36
Neoborus ........ 37
Neoitiglossa..... 14
Neocoelidia.........103-104
TKS ee ere i 129
MCTAVAUUISe se secede: 76
Neurocolpus..... 33
MN OA foes mie ros orate 108
MUA Men chet Sa: 5 117
nigriclavus......... 30
TUeaTeK DIYS 6p gseqnodo 30
nigristernum..... 21
nigroscuta....... 108
nigrovittata...... 59
INTIME es eco adae 23
nitiduloides....., 10

PRELIMINARY LIST

Notonecta....... 63
novaeboracensis.. 82
MOVCllae ee eee 80
MULLIS ee 32
TNO Sees eee 3%
nymphaeae...... 12%
IN'YSIUS epee hee . 21-22
O

ONG WE, sos sscca- 112
ODLLG MUS ee eee 1!
ObITGgUUIS Tae eee 47
obliquus .... : 58
ODSCUIA ee 14
ODSCUTa see neee 31
OMBOMPUUS, cdasace : 52
ODGUSA Seen 70
OUI sos cokSec i 109
occidentalis ..... 115
occidentalis ..... : 127
octolineata ...... 8:
OCUIENEY 2 cansacac 70
OCWIPIGUIS .s56c050r 62
Oedaneala ....... 24
oenotherae....... 121
OleaGr ater eee 127
Olwarus eee 69
Oncerometopus. . 30
Oncometopia .... 81
Oncoiyluste ase 48-49)
Orectoderus...... 47
GHACEN DIS 5 <obied bane dL
Oxsilltts eee eee v2
(ONAIOVEVATE) . 5 aos 127
ortholobisis.. oo. 129
Oxchopsteaeeenecre 39
Orthotylus....... 48
OSbOLNIEE a eee 7

OVAGUSEe eee 94
oxy baphites= se. 12

12

Pachyopsis ...... 71-72
Pachypsyila...... 114
Pachytropis...... 32
ACC See ee 39
Palaeococeus..... 129
Dallenspee eee ‘ 2s
pallidicornis ... 33
pallidipes........ 70
pallidus eyes 76
Pallipesaeeseeeeor 62
Pallipess ss 5h eae 69
Dalniciineea ee 34
iRAMeraeeee eee 24
Pamerocoris 40
Paraboloeratus . . 54.
IERIE SUIS. 5 5550 S4
DAaLVAllapee eee 65
PECtOnaliSee eee 60

Rediopsisv-eaece 72-73

Peliopelta........
pellucida “2. 22
peltataeee eee
Pemphigus... 2227
Pentatoma,......
Penthimia.....

DELCUUOM ae eee
Reribalise esses
perfoliatum......
Perillus

PErIMUtAtal yee
DEMMICIOSUS sseee"
pereeue se este eas
Zkaenus 2s
Phimoderma .......
le psitisees-ctsee es
JANDA), 654 cen
Physokermes.... .
ny VOCOrISH saree
PICEUS Seesncse ss ee
DICCUSH tena
picta. rere
j ONKOL: Ac ene neeee Pec
DUCLUPES weeecree seca
Piesma...
lop honusmesess
DIN eco
POWANITOVTHL, cocogonaece c
Pissonotus.......
placidus
plagiatus
Plaviognathus. ...
Platymetopius...
Platypedia..........
DINIUOR ee sarertaceaeees
PLUCOMMUS eee
podopioides........
ROCODSieseer etn

eteee

Poeciloscytus ......
DOMMTUS eee eee
Populicaulis.....
DOPUWIHCOlas eee
populi-condupii-
HONS . 52 - mH!
populi-monilis. ...
populi-ramulo-
rum seeLae ces
populitrans—
VETSUS paver esteoer :
JOLANEC TOSI 3 5 cose oc
princeps sete
Prionosoma........
JEAROL EMG sccce ssoca0 a
productus
DLOCUG UNIS Heese
propinquus
Prosopophora....
Protenor ..
PLUNI 42. sss. evans

82

115-116

—

HEMIPTERA OF COLORADO. 135

UUM Sa sisetsactto se 123
Psylla. ~ .:.-40.-- Add—Li4
Ptochiomera....... 24-25
puUberulalee..ccdacee 3 25
Paro lailitale:-es-eseee ss 65
pulche lary ceccwe.. 109
MULT eter sesece- 28
pulverulenta..... 33
iPulyimaria...... 127
PUMNEHLPES soee=cer-1 21 24
punctipes.......... 51)
punctiscuta....... = 99
punctiventris ..... 21
FOWIE og anosadne 6 6 3c 110
DULSMIAC’. | <.-cc00.': 114
FOUNDA soc605 6 5 see 65
IBVCHOGECLES ls: -. 40
Pygolampis........ 6
pyramidata....... 67
DyLOlAGhereenseee- : 125
Q
quadrangularis .. 71
quadridenatta.... 63
quadrilineata.... 114
quadripunctata. .. ei)
quadripustulata... 14
querci......... .67-101-116
quinquespinosus. 18
R
ramentosus....... 79
IREnOGI NE Soe Abaoe ‘ 63
MAM ICUSie sss * 34
Mec lividilidieye «sess. 67
rechivatus).......... 27
FEChuS=....: eae 58
REM xMNIS = epeaes- 20
mollenih visions age one 93
renormata....... 11
TEMMOIS). 4 -)<cwees > s 60
NEPCLLUS -...--.5- -. 49
TS} OU OE Ve, 6 oe pnnoeeere 59
Resthenia......... 29-30
Rhizococeus ..... 125
Rhopalosiphum. . 123
Rhyparochromus, 26
Trill VIC rem pace Rea 114
MUD LS astra tyelieberd ai 2 123
TGUINMOS A geveayes a's 6) ors ; 65
HO JOURN gen Boheee 32
MOWUSGA joes ae a 45
MOWUSTUSs =< iesler0 39
EOOUSUUS .c./.. 5-6 4 72
OS AC stoic ve slave aia o's« y 282
OSA lrscrfeteis)cicisisic'e 124
MUDCCUIUS. . 6.6... 37
iNOS Gs Sees Soe 30
rubicunda....... : 28
PUDIGUS: 25... 20... 41

rudbeckiae.......
rufescens........
MU COLMIS: neice
rufoscutellatus. ..
MUMS As nae ee eee
MUMS CULULS eee
MUO A eoe sodoau
GUS WLOS aes ataresiel
PUINENS), soc Gacane

SAlICIS) 2455 e5c ee
salicis-nigrae. ....
SalicOlasea eters
sanguinea....... :
sanguinolenta....
Sayilinnen sovrserescie.s
SAWAlS Riots ainsi.
SGADrOSUS)....s « «se
Scalanishoma coco
Scaphoideus......
Schizoneura......
Scolopax o.o. 5.4.
Scolopocerus.....
Scolopsiseeees sect
Seutellatwsye4. oe
secundarius.......
Semunuday. ......-
semivittata ......
ROCEHAUEL, 4.4 sates A
SericanSeen ee eee
SELIGAUUS Henne:
serieventris.......
SCLrAlUSA a. saeco
SELEIDES haere eee
SenvillS se eee
sexmaculatus.....
SexmOlatde-saeeae
sexvittatus.......
signatifrons......
SIPMALUSe... a. eee
SIONOLEslleeeeeeee
HINO o 655 conoce

SINCAie ce acrrcretare
Siphocoryne..... :
smaragdula......

STOWitee eee F

SODLIMUS ee eevee
SOGIUSaeereraeriee :
Solani wane saci
solidaginis.......
SONOLTAG Hele
SOLU deere tee
TORO. Goce dace
Spilalonius.......
spinifrons........
spinosula........

SPINOSUSa. «. ace 13
SPINOSUS)5- 205 19
SISSIES ae cette 60
splendidus: .-2-. 12
Stalliven saccerssae 40
Stenocranus...... 69
SthenmanuSr see cis 41
Stictocephala .... 66-67
stigmatus........ 68
Stiphrosoma...... 45-46
SOM a rere ere 70
SULTAGA\. 26.- sie sree 64
Sha). 1s y ebS 46
subcoleoptratus. . 59
subferrugineus.. . 11
Subnitiddy. eae. 45
subvittatus ...... 19
SUCCINCTUS ...2..... 28
SUCH DOS sonbon sour 68
SUPCLOUS aerate a 3

MUU Sooo o oes ake oc 64
SUGUTa See secre 80
SylveStnisr aac eer 24
SVNOGLCAE Seaver 64
Systratiotus...... 38

ale

Gabid acer sci 23
GAUTASaersee inert a7
tenellayeeneeeeces 100
Melamonale ss. ees 67
Teratocoris...... 29
terebrans........ 102
Tettigoniad. 2.2... 81
Thamnotettix.... 94-100
AMG ]iai a. s Sees 67
AMinBhNUEes sac ono 16-17
hymn, ects ass ose 22
lay ABMs, oocoh 39
GUDICOM == 2. Perit 64
AMONG 6665 ous 65
GM CULLS serena te 3

UNE 8 Bema aoc aT
AMONIMOE NS on bodanace 18
Tinicephalus..... 42
WOHNCE. Gaceeenor 9
Trapezonatus.... 25
tricarinatus...... 69
Trichopepla...... 16
LAKEMAN NS aoe oe ac 118
Trigonotylus..... 28
ETIOZBn 4 eas 115
Arinphileps em. 5d
GLIStISS se ee 18
GLISUIO MINUS) 420. 15
CLUV LUAU Sees oe 21
TLOPICUS Ae eet : 25
tuberculifer...... 58
LLU Cl aera eres 64
tumidifrons...... 104

TPUpPONIA:.,.. «iy yates : 45

136 PRELIMINARY LIST

BUENOS os odocc050 66 valerianae ....... DAL AvabinGliss Os sooo oc
(HULAENCUWISK. 5 oococue 28) validusie... Zila VARICUS = ere
OMIM Gao bo ae 84 valvataynaseneees- 64 vitellinus........
plivilamden. A. 5). 5 Sh: 70' Vianduzear 22-2: OS) Avititexs see :
Typhlocyba...... 111-113 vanduzei......... GO avalbis see, eee
typhlocyboides ... LO vandizeeesreres 102 vittatus....-.:...
WAIBNIEY 5 soccodec HO \yalasleerehe sone cone
10 Vallolaniusrraecee IS) \/WUOVEANIB) 56 sos oke
Vid UL eee ae ee 67
UNAS eae 16 venaticus........ 38 xX
UIOUVSIE I, hy eect eee Si ventralispesseees 60
TMT COL ne HUG VKSERHAL. 6 o6 608 ob U2 SOWA, 5566006 a0
TU 0 as 5 4 ee een ZAS Wie Na LG Reese 115 Xerophloea......
WHOA. 6 ae Oe oe 14) vervicaliss.- snes. 51
mmenuilataeees os. OR) \WEIHIGIS, soon 4540sc 80 nYS
UM COLOGee ae | ae LOST SAVieS titel eee ees oe 68
unicoloratus..... SOM VESUIUUS aera re AG WiyllCCde hae scene
unifasciatus ..... 33 WAG) Soce s coc is)“ SWMWCORD, 50.00 a0 6 6c
WUOUAVIRGEN) saab ook Ol WWI | os coma cae 36
WUE) Gasnaaone fO)” VIRESCENS) 3250. --e 20 Ly,
utahensis........ 115 viridescens ...... lil
WAUEMOMGBNE 2s odo ser ly ZWENEY. « Ga ntoooot
V viridicatus....... ANG /SNOCIROING Ss 650000500
AVUCHODES Ga oaaooocd ANL YAOIMENLWIE). soo co ooe :
vagabundus..... WG} yells 5 ob soo e5 ce 67

MOANA NDE.

Abutilon—127. Chenopodium—119.

Acer—117. Cherry—119.

alfalfa—9, 20, 24, 27, 29, 34, 36, 45,56, 57, Clematis—13, 18, 56, 71. 84.
59, 60, 65, 69, 81, 88, 89, 94, 109, Cnicus—d7.

113, 114. corn—120.
Amarantus—120. cottonwood—28, 67, 78, 109, 129.
apple—24, 66, 102, 112, 116, 120. currant—l4.
Apocynum—6s, Cycas—127.
Aralia—127, 128. Delphinium—2]1, 382, 50, 52, 99.
Arctostaphylos—114, 124. Dracaena—128.

Artemisia—31, 39, 45, 47. 49, 50, 51, 65, Epilobium—l24,
72, 92, 95, 107, 108, 110, 111, 115, Kriogonum—119, 120.

2B: EKuphorbia—35, 58.
Asclepias—28, 118, 124. Ficus—127, 128.
ash—I4. Fraxinus—115.

Aster—66. Gaura—124.

Astragalus—120., Glyeyrrhiza—l0, 22, 30, 65, 68, 120.
barley—20, 29, 104. gooseberry—17, 114.

beet—81, 94. grape—19, 113.

beet. sugar—22, 24, 36, 81, 84, 100, 104, grass—59, 82, 93, 113.

126. greasewood—127.
Bigelovia—21, 38, 45, 52, 58, 68, 72, 127. Habrothamnus—125,
blackberry—55. Helianthus —65, 77, 82, 120.
black walnut—56, 76, 94 Heracleum—!20.
boxelder—13, 21, 38, 44, 78, 113, 127. horse-radish—118.
cabbage—118. Iva—65.
ealla lily—1238. Lactuca—124.

Carex—28, 29, 45, 59, 69, 71, 82, 86, 87, 88,. lemon—128, 129.

96, 97, 99, 105, 106, 107, 114. locust, black—127.

Champaeropsis—128. locust, honey—127

HEMIPTERA OF COLORADO

maple—h6b.
maple, soft—127.
Mentha—14, 121.
Mentzelia—125.
mustard—22,
Negundo—117.
Neprolepsis—127.

oak—14, 17, 80, 82, 83, $4, 102, 110, 111,

112, 128.
Oenothera—-20, 34, 121.
oleander—128.
Opuntia—18, 125.
orange —128, 129.
Oxybaphus—121
palm—129,
Pastinaca—120.
pear—128. :
Phormium—128.
Phragmites—122.

Pinus —24, 35, 46, 117, 126.

Platycerium—127.
plum—111, 112, 123, 128.
Populus—115, LL6, 117,
prickly pear —17.
Prune—123.
Pranus—119
Pseudotsuga —L15.

- Psoralea—s, 6».
Pyrola—125.
Quercus—I17, 12°.
quince (.Japanese)—_J28.
radish—122.
Raphis —128.

maize—120.
raspberry—4d.
Rhus—31, 58, 84.
Kthynehespermum—127.
Ribes--—) 14, 123.
rose—30, 31, 124, 128.
rubber-tree—127.
Kumex—121.
Sagittaria—123.
Salix—39, 56, 113, 117, 121.
Senecio—éa4,
Sisymbrium—20, 81,
Solanum—125, 126, 127.

Solidago —38, 52, 59, 65, 66, 71, 76, 81, 87,

88, 99. 106, 111, 124.
spruce—126,
squash—18,
sunflower—48.
Symphoricarpos—117.
timothy—9.
tomato—114.
‘Trifolium—t18.
Ulmus—116.
Valeriana—121.
Veratrum—122.
Veronica—127.
virginia creeper—67, 109, 113.
wheat—4, 10.

willow—14, 17, 31, 37, 38, 43, 45, 56, 72,
73, 74, 75, 77, 79, 80, 82, 85, 87,

108, 109, 110, 113, 129.
Xanthium—1 23.
Yucca—122.

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