176 
Host Piants.—Orchard grass (Dacty- 
lis glomerata) and, to some extent, other 
grasses; Illinois specimens have been col- 
lected on orchard grass and_ timothy 
(Phleum pratense). 
KNown DistripuTion. — A European 
species now known from British Columbia, 
Illinois, Indiana, Iowa, Massachusetts, 
Michigan, Minnesota, Missouri, New 
Hampshire, New Jersey, New York, North 
Carolina, Ohio, Ontario, Oregon, Pennsyl- 
vania, Quebec, Tennessee, Wisconsin. 
Illinois Records. —One hundred twenty- 
six males and 158 females, taken June 1 to 
July 14, are from Antioch, Apple River 
Canyon State Park, Bureau, Elizabeth, Ga- 
lena, Hamilton, Hardin, Karnak, Marshall, 
Mason City, Monticello, Palos Park, Plain- 
view, Putnam, Urbana, Warsaw, Wauke- 
gan, Zion. 
Paracalocoris Distant 
KEYG LOSS REGLES 
1. Hind tibiae thickly clothed with long, 
erect hairs which obscure tibial 
spines and are easily confused with 
fhewienn eeeeete scrupeus, p. 177 
Hind tibiae with shorter and more 
appressed hairs, especially on inner 
side; hairs not easily confused with 
thueis pines anteater te aease Cee 2 
Ww 
Length of first antennal segment as 
great as or greater than maximum 
dorsal length of pronotum........ 5 
First antennal segment shorter than 
PrONnotumeas ca. es tae eee 6 
3. Length of first antennal segment !ess 
than width of head plus dorsal width 
of an eye; length 6.00-6.50... 
A Ee ee Oo 2g hawleyi, p. 178 
Length of first antennal segment equal 
to width of head plus dorsal width 
Of ane vey or freatcr pen eee 4 
4. Second antennal segment uniformly 
blackiae waa eee limbus, p. 178 
Second antennal segment pale yellow- 
ish to brown, sometimes dark 
brown, but never black; general 
coloration brownish, with minute 
pale spotssi) 3 Oates eae eee 5 
5. First antennal segment reddish brown, 
with pallid spots; gula and genae 
dark brown..... Pe Me ge 
..pallidulus var. pallidulus, p. 178 
ILLINOIS NATURAL History SURVEY BULLETIN 
10. 
ile 
Vol. 22; Arta 
First antennal segment more pallid 
than brown; gula and genae pallid 
..pallidulus var. albigulus, p. 178 
Length of first antennal segment equal 
to or greater than width of head... 7 
Length of first antennal segment less 
than width of head. >.) 33 9 
Pronotum and scutellum with three 
distinct yellowish stripes; first an- 
tennal segment: black, with few, if 
any, pale spots..... trivittis, p. 178 
Pronotum and scutellum without dis- 
tinct stripes; first antennal seg- 
ment pallid, marked with brown, or 
brown with pallid marks.......... 8 
Apical half of second antennal seg- 
ment black or very dark brown; 
scutellum with narrow, median, 
yellowish line, this line sometimes 
obscured by brownish coloration. . 
dg pie a evonymi, p. 178 
Second antennal segment rather uni- 
formly yellowish brown, in darkest 
specimens with black i only at 
apex; scutellum with light color 
irregularly distributed; brown 
largely broken by minute, light- 
colored spots: =) ae salicis, p. 177 
Dorsum dark brown, with several 
large yellow patches: on apical half 
of scutellum, apex of clavus, middle 
of corium, apex of Emibouen and 
outer half of corium, and three 
areas on pronotum. 7... .=——— 
ee es multisignatus, p. 180 
Ground color dark brown, light- 
colored areas taking the form of 
fine lines and small dots]=) yaaa 10 
Basal half of second antennal segment 
yellowish brown, but without nar- 
row white annulus at middle or 
base... 7). eee castus, p. 178 
Second antennal segment with a nar- 
row white annulus near the middle 
which separates black area on apical 
half from brownish basal half... .. 11 
Rostrum extending beyond hind coxae 
om oct gts ee celtidis, p. 179 
Rostrum not extending beyond hind 
COXAC.. 2.6.6 ee rr 1 
. Second antennal segment dark, with 
pale annulus at middle only; femora 
dark at base, apical half with one 
large and yee smaller white 
Spots) wk, ccteeaee sleditsiae, p. 180 
Second antennal segment with pale 
