174 
nearly glabrous; scutellum either red or 
black. Propleura yellowish; rarely anterior 
half of pronotum yellowish. Legs mostly 
yellowish with basal halves of middle and 
hind coxae, tips of tibiae, and apical seg- 
ment of each tarsus, black; hind femora 
often with two fuscous annulations just be- 
fore apex; membrane and veins uniformly 
dark fuscous or black. 
FEemMaALeE.—Length 5.40, width 2.43. Some- 
what more robust than male, but very simi- 
lar in coloration. 
Host PLants.—A good series of nymphs 
and adults were taken on wild gooseberry 
(Ribes oxyacanthoides) in Iowa, May 18 
to 25; a few Illinois specimens were col- 
lected on willow (Salix sp.) and oak (Quer- 
cus sp.). . 
Known DrstripuTIoN.—lIllinois, Indi- 
ana, Iowa, Ohio, Pennsylvania, Wisconsin. 
Illinois Records.—Five males and 12 fe- 
males, taken May 9 to June 30, are from 
Algonquin, Dongola, Galesburg, Glen Ellyn, 
Urbana, White Heath, Willow Springs. 
Adelphocoris Reuter 
KREYSTOSSERCIES 
Hemelytra dark brown, broad pale area at 
costal margin, fig. 168; scutellum uni- 
formly dark brown, leng h 6.80-7.40... 
secgeeks Me ear ep Be loc ane at rapidus, p. 174 
Hemelytra pale, costal edge black; scutel- 
lum light with two dark longitudinal 
lines; usually apical area of corium 
darkened} fig) 169:-lenoth?3.00- an 2. 
SS idini ad ee, « eee lineolatus, p. 175 
Adelphocoris rapidus (Say) 
Capsus rapidus Say (1832, p. 20). 
ApULTs.—Fig. 168. Length 6.80—7.40. 
General color dark brown. Embolium and 
outer margin of cuneus light brown; prono- 
tum yellowish brown, basal half of disk us- 
ually with two black spots; these spots some- 
times fuse to form a transverse black mark. 
Host PLants.—Ordinarily breeds on 
dock (Rumex sp.) in the northern states, 
but may breed on several other plants; IlIli- 
nois specimens have been collected on clover 
(Trifolium sp. and Melilotus sp.) and yar- 
row (Achillea sp.). 
Known DistriguTIoN.—A common spe- 
cies in the eastern states and those west- 
ward to the 100th meridan; farther west it 
Ittino1is NATURAL History SURVEY BULLETIN 
Vol. 22, Artes 
is replaced by superbus Uhler, a quite vari- 
able species.  ; 
Illinois Records——Two hundred forty- 
two males, 253 females and | nymph, col- 
lected May 15 to Nov. 4, are from Albion, 
Algonquin, Allerton, Alton, Anna, Antioch, 
Fig. 168.— Adelphocoris rapidus. 
Arcola, Aurora, Beardstown, Beach, Bloom- 
ington, Blue Island, Bluff Springs, Borton, 
Browns, Bushnell, Carbondale, Champaign, 
Chicago, Darwin, Delavan, Dixon, Dolson, 
Dubois, Last St. Louis, Elgin, Elizabeth- 
town, Erie, Fairmount, Farmer City, Foun- 
tain Bluff, Freeport, Galena, Galesburg, 
Giant City State Park, Makanda, Glencoe, 
Glen Ellyn, Golconda, Grand Detour, 
Grand Tower, Grand View, Hamilton, 
Hardin, Hartsburg, Havana, Herod, Hilli- 
ary, Hinsdale, Homer Park; Iroquois, 
Jonesboro, Kankakee, Karnak, Keithsburg, 
Lawrenceville, Mahomet, Marshall, Mason 
City, Metropolis, Milford, Monticello, 
Mound City, Mount Carroll, Muncie, 
Normal, Oak Lawn, Oakwood, Ogden, 
Oquawka, Oregon, Palos Park, Pecatonica, 
Princeton, Pulaski, Rockford, Rockton, St. 
