September, 1941 
Foop PLANT.—Cup plant (Silphium per- 
foliatum). 
Known Distrisution.—lllinois, Iowa, 
Kansas. 
Illinois Records.—CHarLEsTon: June 
fro ttt. Ross, | @. Harpin: June 
peeez. LH. Dozier; 1 4. West UNION: 
June 14, 1930, on Silphium sp., T. H. Frison, 
eee 2 June’ 26, 1932, Ross. & Dozier, 
aed eke 
Strongylocoris mohri new species 
This species is allied to hirtus Knight, 
but is distinguished by its longer pubescence, 
more arcuate hemelytra, and shorter second 
antennal segment, which does not equal the 
width of the head across the eyes. 
Femace.—Fig. 115. Length 4.30, width 
2.50. Rostrum, length 1.00, reaching to 
Fig. 115.—Strongylocoris mohri, 9. 
middle of intermediate coxae, black, with 
second segment pale. Antennae, first seg- 
ment, length 0.30, black, slightly pale on 
apex; second, 0.99, cylindrical, tapering to 
become more slender on basal than on apical 
half, pale, apex black, base brownish, pu- 
bescence pale; third, 0.65, black, pale on 
base; fourth, 0.43, black. Pronotum, length 
0.95, width at base 1.73. Hemelytra strong- 
ly arcuate, costal edge sharp, slightly re- 
flexed, cuneus approximately triangular. 
General coloration black, moderately shin- 
ing, clothed with long, rather fine, erect, pale 
KNIGHT: PLANT Bucs, or MiriIpAgz, oF ILLINOIS 81 
to brownish pubescence. Legs mostly black, 
with tips of femora slightly paler; tibiae 
pale to brownish, darker on basal half, hind 
pair nearly black; tarsi pale, apical segment 
black. 
Holotype, female.—Hamilton, IIl.: June 
9, 1932, Ross & Mohr. 
Paratype. —CENTRAL ILLINoIs: 1 @. 
Named for Dr. Dr. Carl O. Mohr, who 
made many of the illustrations for this work. 
Strongylocoris ambrosiae Knight 
Strongylocoris ambrosiae Knight (1938, p. 5). 
Not yet collected in Illinois; known from 
Iowa, Kansas, South Dakota, Texas. Male 
genital claspers as in fig. 114. 
Orthocephalus Fieber 
No Illinois species; Orthocephalus muta- 
bilis (Fallen) occurs in Maine, New York, 
Pennsylvania. 
LABOPINI 
Labops Burmeister 
No Illinois species; Labops hirtus Knight 
is known from Colorado, Maine, Massa- 
chusetts, Montana, New York, Ontario. 
ORTHOTYLINI 
KEY TO GENERA 
1. Posterior margin of vertex with a high, 
transverse ridge extending from eye 
to eye and bearing stout, black 
bristlestetic (il Gute ge eat wie bore 
tee ty ae each 5 Hadronema, p. 84 
Posterior margin of vertex not having 
a ridge extending from eye to eye 
which bears stout, black bristles... 2 
A well-defined, oblique suture on 
gena extending from antennal fossa 
to beneath eye, fig. 117, this suture 
frequently outlined by a dark stripe; 
red-orange and black species...... 
Ne cca ona eeins Scud Lopidea, p. 84 
Genal suture absent, or extending di- 
rectly from antennal fossa to eye, 
fig. 118, or present, but vague and 
not outlined by a dark stripe...... a 
3. Base of tylus markedly produced and 
located considerably ventrad of the 
i 
