166 
coxae. Antennae, first segment, length 0.32; 
second, 1.22; third, 0.56; fourth, 0.38. Pro- 
notum, length 0.56, width at base 1.03, with 
black, conspicuous pubescence. General color 
bright green; head, coxae and femora often 
becoming pale to brownish; cuneus green, 
apical halves of margins reddish; membrane 
fuscous, cell veins sometimes reddish. 
FEMALE.—Fig. 166. Length 3.30, width 
1.40; slightly more robust than male, but 
not differing in coloration. 
Host Priants.—Red cedar (Juniperus 
virginiana) and arbor vitae (Thuja occiden- 
talis). 
Known DistrinuTIon.—District of Co- 
lumbia, Illinois, Indiana, Iowa, Minnesota, 
Mississippi, New York, Ohio. 
Illinois Records. — Seventy-one males 
and 101 females, taken May 27 to Aug. 28, 
are from Antioch, Apple River Canyon State 
Park, Elizabethtown, Ernst, Freeport, Ga- 
lena, Golconda, Grandview, Grayville, 
Hillsboro, Kampsville, Keithsburg, Lake 
Villa, Monticello, Oquawka, Starved Rock 
State Park, Urbana, White Pines Forest 
State Park. 
Dichrooscytus suspectus Reuter 
Dichrooscytus suspectus Reuter (1909, p. 37). 
Not yet collected in Illinois, but should 
occur here. Known from Connecticut, Colo- 
rado, District of Columbia, Indiana, Maine, 
Maryland, Massachusetts, New Jersey, 
New York. Its host plants are pines (Pinus 
resinosa and P. virginiana). 
Dichrooscytus rufipennis (Fallen) 
Lygaeus rufipennis Fallen (1807, p. 84). 
A European species known from New 
York; may have been imported with the 
Scotch pine (Pinus sylvestris), on which it 
feeds. Not yet taken in Illinois. 
Polymerus Hahn 
KEYS LOSS REGLIES 
1. Rostrum reaching hind coxae, or 
slighty bevonder weit: eee eee 2 
Rostrum not reaching hind coxae.... 4 
2. Rostrum scarcely attaining hind mar- 
gins of posterior coxae; dorsum 
black and pale brown; femora with 
apical halves fulvous, tibiae pale. . . 
pi eat anes nee: nigropallidus, p. 167 
ILLINoIs NATURAL History SURVEY BULLETIN 
10. 
Vol. 22, Ari 
Rostrum reaching slightly beyond 
posterior coxae; body yellowish 
brown, with darkened areas; cuneus 
usually red, rarely paleriy) ae 3 
Hemelytra mostly yellowish........ 
Steere basalis var. basalis, p. 167 
Hemelytra mostly very dark brown, - 
almost black. {22ers 
eee basalis var. fuscatus, p. 167 
Rostrum reaching beyond anterior 
margins of middle coxaeé.. seam 5 
Rostrum not reaching posterior mar- 
gin of mesosternum. .), aaa 6 
Rostrum attaining hind margins of 
middle coxae; dorsum black, nar- 
row area at apex of cuneus and slen- 
der line on either side of fracture 
pale; tibiae uniformly black...... 
A eae nt oe proximus, p. 168 
Rostrum just attaining middle of in-_ 
termediate coxae; dorsum black and 
pale brown; tip of scutellum and 
basal angle of cortum pale; cuneus 
yellowish, red and black.......... 
unifasciatus var. lateralis, p. 16/7 
Rostrum nearly attaining posterior 
margin of mesosternum........75 
Rostrum not reaching beyond middle 
of mesosternum. 4)... ee 8 
Legs rather uniformly reddish yellow, 
but hind femora with a small group 
of fuscous points on anterior face at 
middle of apical half; cuneus with 
outer edge pale brown... 2am 
La heese. oe punctipes, p. 169 
Tibiae black, femora black on apical 
half of dorsal aspect; cuneus unt- 
formly red orange..... illini, p. 168 
Tibiae reddish yellow or with broad, 
pale areas. ...... 7 ann 9 
Tibiae black, rarely with some yellow- 
ish........ 05.06 0.0 12 
Legs mostly red, with apical one-third 
of femora black; tibiae yellowish, 
with apices and variable basal area 
black; second antennal segment 
yellowish with apex very dark 
brown. ,.4)o9 oe venustus, p. 170 
Legs orange yellow or fulvous....... 0 
Hemelytra uniformly black; length of 
second antennal segment equal to 
width of pronotum at posterior 
margin 2 eee nubilipes, p. 170 
Cuneus and embolium of hemelytra 
pale. or fulvous. ...... 7 1 
