September, 1941 
11. Pubescence on dorsum deep golden; 
tibiae without black spot at base. . . 
oh a fulvipes, p. 170 
Pubescence on dorsum silvery white; 
tibiae with black spot at base..... 
~ he e severini, p. 170 
12. Rostrum scarcely attaining hind mar- 
PieetronecOxaes) 42.4.0... 13 
Rostrum reaching behind posterior 
margins of front coxae, or nearly 
to middle of mesosternum........ 14 
13. Hemelytra uniformly black; dorsum 
clothed with silvery, silky pubes- 
Eun, ea a gerhardi, p. 171 
Hemelytra with embolium and edge 
of cuneus pale; dorsum clothed with 
golden, silky pubescence......... 
lee brevirostris, p. 170 
14. Cuneus black; second antennal seg- 
ment of male as thick as first seg- 
ment; coxae yellow in both sexes; 
dorsum black with scutellum and 
hemelytra clothed chiefly with black 
PaesCeNnCe: soe... . opacus, p. 170 
Cuneusryellowish or red....4....... ike 
15. Embolium black; cuneus orange; 
coxae of male black, of female yel- 
low; dorsum clothed with silvery, 
silky pubescence. . venaticus, p. 169 
Embolium pale brown to red........ 16 
16. Femora deep red, only narrow band 
at apices black; tarsi black; embol- 
tum and cuneus deep red......... 
a ae chrysopsis, p. 171 
Femora deep yellow, apical one-third 
black, a pale fascia showing on 
anterior aspect; tarsi mostly yellow, 
with apical segment and claws 
black; embolium pale brown to 
Wellow; cuneus orange............ 
on flavocostatus, p. 168 
Polymerus basalis (Reuter) 
Poeciloscytus basalis Reuter (1876, p. 73). 
Apvutts.—Length 3.70—4.80, width 1.70- 
2.30. General color pale brown to yellowish, 
darkened with fuscous and black; hemelytra 
mostly yellowish, with clavus and apical half 
of corium chiefly fuscous; scutellum black, 
variable area at apex not so dark; cuneus 
red; sometimes embolium and legs tinged 
with reddish; posterior femora with two 
subapical fuscous bands; dorsum clothed 
with silvery, silky pubescence that appears 
golden yellow in certain lights. A very dark 
KNIGHT: PLANT Bucs, or Miripag, oF ILLINOIS 
- 
167 
form of this species, variety fuscatus Knight 
(1926f, p. 167), has not been taken in IIli- 
nois. 
Foop PLants.—Dog fennel (Anthemis 
cotula); Illinois specimens were collected 
also on plantain (Plantago aristata), daisy 
(Chrysanthemum sp.), sunflower (Helian- 
thus sp.), oak( Quercus sp.), tickweed (Co- 
reopsis sp.) ; the oak record was certainly a 
“sitting” record. 
Known DistrinuTIoN.—Common in the 
eastern United States. 
Illinois Records—vTwo hundred ten 
males and 176 females, taken May 18 to 
Oct. 12, are from Albion, Algonquin, Alton, 
Antioch, Bloomington, Champaign, Chicago, 
Darwin, Delavan, Dubois, Elizabethtown, 
Elmira, Farmer City, Freeport, Galesburg, 
Grand Tower, Grayville, Herod, Karnak, 
Lawrenceville.e McHenry, Metropolis, 
Monticello, Mount Carmel, Muncie, Pax- 
ton, Rockton, Savanna, Seymour, Shawnee- 
town, Springfield, Starved Rock State Park, 
Urbana, West Union. 
Polymerus nigropallidus Knight 
Polymerus nigropallidus Knight (1923d, p. 
599). 
Known only from New Jersey. 
Polymerus unifasciatus (Fabricius) 
Lygaeus unifasciatus Fabricius (1794, p. 
Se 
Mate.—Length 5.60, width 2.60. Head 
width 1.04, vertex 0.47. Rostrum, length 
1.56, reaching to middle of intermediate 
coxae. Antennae, first segment, length 0.56; 
second, 2.08, black, with basal half dusky 
brown; third, 0.82; fourth, 0.78. Pronotum, 
length 1.04, width at base 1.86. Clothed 
with golden, sericeous, tomentose pubes- 
cence, intermixed with blackish hairs. 
Ground color black; apex of scutellum, 
basal angle of corium, anal ridge and area 
at inner angle of corium, apex of embolium 
and area of corium bordering cuneus, base 
and apex of cuneus, tibiae, apical one-third 
of front and middle femora, pale to testa- 
ceous; cuneus with inner half red, outer 
margin black except at base and apex; 
membrane fuscous, veins and central area 
less dark; a small clear spot bordering apex 
of cuneus. 
FEMALE.—Length 5.20, width 2.65; very 
similar to male in color and pubescence. 
