186 
yellowish, black and white pubescence; em- 
bolium with an elevated black spot at apex, 
also with a black area at middle which is 
broken by pale marks; corium with a darker 
area bordering clavus and a dark spot at 
middle on outer margin; cuneus reddish to 
black along outer margin and at apex, with 
a black tuft of hairs at middle of inner 
margin and a second one near inner basal 
angle. Membrane rather densely marbled 
with fuscous; more uniformly fuscous api- 
cally and at base and with a somewhat 
light-colored area near apex of cuneus, this 
spot invaded by fuscous marks; veins fus- 
cous. Coxae white, with small lateral areas 
at base dusky red. Femora black, less dark 
at base; hind pair with light spots on ven- 
tral aspect and a rather distinct, subapical, 
light band on dorsal aspect; front pair 
mostly pale, with a longitudinal black bar 
on apical half of anterior face. Front tibiae 
reddish to black, with a pale annulus at 
middle of apical half, a narrower one near - 
middle of basal half and a third, nearly 
obsolete one, near base; intermediate tibiae 
chiefly light, but marked with dark reddish; 
hind pair light colored, with variable dark 
brown marks; tarsi fuscous. Venter black, 
sides irregularly tinged with reddish; geni- 
tal segment bearing, above base of left 
clasper, a broad, erect tubercle with a 
vague apical notch and another smaller 
tubercle above base of right clasper; clasp- 
ers distinctive for species. 
Fema_Le.—Length 6.20, width 1.90; more 
robust than male, but very similar in color- 
ation. 
Hasits. — Usually collected at lights; 
probably predacious. 
Known DistriBpuTion.—District of Co- 
lumbia, Illinois, Indiana, Massachusetts, 
Mississippi, New York, Oklahoma, Vir- 
ginia. 
Illinois Record. — CHAMPAIGN: June 
IS S886 Cr Amel iarte lier 
Phytocoris albifacies Knight 
Phytocoris albifacies Knight (1926g, p. 159). 
FEMALE.—Length 5.90, width 2.30. Head 
width 1.11, vertex 0.46. Lower half of face, 
or ventrad to a line running through base 
of tylus and lower margin of eyes, white; 
vertex more or less colorless, a curved, white 
mark touching inner margin of each eye. 
Rostrum, length 3.43, attaining base of 
ovipositor, white, with third and fourth 
Itttnois NaturAL History SURVEY BULLETIN 
Vol. 22, Arta 
segments black. Antennae, first segment, 
length 1.80, black, dorsal aspect with two 
smooth, white spots on apical half and four 
or five smaller spots on basal half, spines 
both fuscous and light colored, short, length 
scarcely equal to thickness of segment; sec- 
ond, 3.30, mostly black, almost colorless at 
base for a space of 0.23, and a pale annulus 
of equal length beginning at middle; third, 
1.77, black,. paler at base; fourth) )ieae 
black. Pronotum, length 1.06, width at 
base 1.69; black, with lower margin of pro- 
pleura, xyphus, and collar to a point behind 
lower margin of eye, white; disk more or 
less fuscous, basal margin somewhat pale, 
with two black, elevated spots on either side 
of median line. Scutellum fuscous to black; 
basal angles and apex pale. Hemelytra 
black ; with several small spots on embolium, 
base of cuneus, a triangular spot at apex of 
corium and spot near middle, tending to- 
ward pale. Membrane mostly very dark 
brown with paler areas sprinkled with fus- 
cous dots; cubitus almost entirely colorless. 
Sternum and pleura black, margins border- 
ing coxae pale. Venter principally black, 
with most of ventral area light except on 
last segment. Legs black with almost color- 
less marks much as in corticevivens Knight; 
femora black, with numerous minute, pale 
spots, a somewhat larger, light-colored spot 
indicating an oblique, subapical annulus. 
Dorsum clothed with rather short, black, 
simple pubescence intermixed with silvery 
and golden, silky pubescence. 
Mare.—Length 6.00, width 2.00. Very 
similar to female in coloration, although 
generally darker. Genital claspers distine- 
tive and indicating a close relationship to 
corticevivens. 
Hapits.—Occurs on the bark of pecan 
trees where it is probably predacious. 
Known DisrriputTion. — Illinois and 
Mississippi. 
Illinois Record. — Harrispurc: June 
15, 1934, at lights, DeLong & Ross, | 2. 
Phytocoris corticevivens Knight 
Phytocoris corticevivens Knight (1920, p. 63, 
pielanes 6): 
Mate.—Leneth 6.60, width 2.30. Head 
width 1.04, vertex 0.39. Rostrum, length 
3.03, reaching fifth abdominal sternite. An- 
tennae, first segment, length 1.60, black, 
basal half with five or six small, smooth, 
white spots, each bearing a few erect, short 
