September, 1941 
basal annulus white; third, 1.55, black, 
pallid at base; fourth, 1.16. Pronotum, 
length 0.99, width at base 1.73. General 
coloration dusky to brownish; spots on base 
of pronotal disk, tip of clavus, apex of em- 
bolium and of cuneus, black; fuscous color- 
Bipeels 7. Aylocoris saitcts, o'. 
ation of hemelytra interspersed with pallid 
and brownish marks and dots; membrane 
clear, marked with patches of fuscous; cubi- 
tus white around apex of larger areole. Legs 
pallid; apical half of femora marked with 
reddish brown; hind pair chiefly dark brown, 
with numerous white spots, a larger white 
spot forming an incomplete subapical band; 
tibiae banded with fuscous; apices of middle 
pair pallid; hind pair chiefly dark fuscous. 
Dorsum clothed with pale to brownish, sim- 
ple pubescence thickly intermixed with sil- 
very to golden yellow, silky hairs. Genital 
claspers and flagellum distinctive for species, 
| fie. 176. 
 Femare.—Length 6.30, width 2.30. An- 
tennae, first segment, length 1.34, chiefly 
| white, irregularly marked with reddish 
KNIGHT: PLANT Bucs, or MirIpAez, oF ILLINOIS 
197 
brown; second, 2.98, yellowish brown, more 
fuscous at apex and next to pallid base; 
third, 1.47, black, pallid at base; fourth, 
1.12, black. More robust than male and 
usually lighter in color. 
Hasirs.—Breeds on willow (chiefly Sa- 
lix nigra) where the species appears to be 
predacious on soft-bodied insects. 
Known DistripuTIonN.—Connecticut, 
District of Columbia, Illinois, lowa, Maine, 
Maryland, Massachusetts, Michigan, Min- 
nesota, Mississippi, New Hampshire, New 
Jersey, New York, North Dakota, Ohio, 
Ontario, Pennsylvania, South Dakota. 
Illinois Records.—Seventeen males and 
15 females, taken June 11 to July 9, are 
from Alton, Antioch, Elizabeth, Galena, 
Galesburg, Golconda, Monticello, Savanna, 
Seymour, Waukegan. 
Phytocoris lacunosus Knight 
Phytocoris lacunosus Knight (1920, p. 56). 
Not taken in Illinois; known from Minne- 
sota and New York. Collected on the bark 
of hornbeam (Carpinus caroliniana). 
Phytocoris angustulus Reuter 
Phytocoris angustulus Reuter (1909, p. 29). 
Known from New York, North Carolina, 
Nova Scotia, Vermont; not yet collected in 
Illinois. 
Phytocoris buenoi Knight 
Phytocoris buenoi Knight (1920, p. 57). 
Not taken in Illinois; known from Massa- 
chusetts, New York, Ontario. Adults and 
nymphs have been collected on Norway 
spruce (Picea excelsa). 
Phytocoris nigricollis Knight 
Phytocoris nigricollis Knight (1923d, p. 636). 
Known only from New Hampshire and 
North Carolina. 
Phytocoris schotti Knight 
Phytocoris schotti Knight (1926g, p. 162). 
The coloration of this species is suggestive 
of that of salicis Knight, but the dark areas 
are black rather than brown; the apical 
half of the corium is largely pallid, except 
near the inner margin, and is without an 
oblique infuscation; the cuneus is almost 
