September, 1941 
frequently collected at light. In New York, 
Dr. C. P. Alexander in letter reports this 
species as flying up in large numbers from 
the grass after sundown. In Iowa I found 
this species abundant in closely cropped 
pasture land where the little brown ants 
Lasius alienus var. americanus Emery were 
abundant. 
Known DIistrRIiBUTION.—Connecticut, 
Illinois, Iowa, Maryland, Massachusetts, 
Michigan, Minnesota, Montana, New York, 
North Carolina, Ohio, Ontario, Pennsyl- 
vania, South Dakota, Utah, Washington, 
Wyoming. 
Illinois Records.—Seventeen males, tak- 
en May 10 to Aug. 22, are from Algonquin, 
Siicazo, Oak Lawn, Palos Park, Urbana, 
Willow Springs. 
Cyrtopeltocoris Reuter 
Cyrtopeltocoris illini new species 
This species is to be distinguished from 
allied species by the pointed, conical develop- 
ment of the scutellum, fig. 137. 
Mace.—Fig. 137. Length 3.60, width 
0.91. Head width 0.75, vertex 0.52; eyes 
scarcely raised above contour of frons, a 
sharp carina at base of vertex. Rostrum, 
length 1.40, reaching to middle of hind coxae. 
Antennae, first segment, length 0.28, pale to 
white; second, 1.25, nearly cylindrical, fus- 
cous brown, with fine, pale pubescence; 
third, 0.86, equal in thickness to second seg- 
ment, dark brown; fourth, 0.60, thickness 
equal to that of preceding segments, dark 
Zz, KEE E . 
1h 
Ss LF, 
KNIGHT: PLANT Bucs, or MirIpaAg, OF ILLINOIS 
ALLL, 
117 
brown. Pronotum, length 0.73, width at base 
0.95, disk strongly convex on basal half, 
collar distinctly narrowed, not equal to 
width of vertex. Scutellum remarkably de- 
veloped into a vertical cone with an acumi- 
nate point, mesoscutum broadly exposed and 
sloping downward to base of scutellum. 
General color medium brown to dark brown, 
smooth or only very minutely punctate, mod- 
mtr ie 
. 137.-- Cyrtopeltocoris illini, dorsal and lateral aspects. 
