September, 1941 
cous. Genital claspers distinctive, fig. 134. 
FEMALE.—Length 3.60, width 1.60. More 
robust than male, but very similar in color 
and pubescence. 
Known DIstrisuTIon. — Illinois, New 
Jersey, New York. 
Illinois Records.— AsHLEY: Aug. 7, 
1917,19. Mereposia: Aug. 22, 1917, sand 
pit, 19. 
Ceratocapsus sericus Knight 
Ceratocapsus sericus Knight (1923d, p. 530). 
Mave.—Length 3.90, width 1.56. Dor- 
sum clothed with rather sparsely set, erect, 
yellowish, pilose hairs; scutellum, clavus 
and inner half of corium covered with closely 
appressed, sericeous or scalelike pubescence. 
General color very dark brown; legs and 
antennae yellowish; third and fourth an- 
tennal segments dark reddish brown. Mem- 
brane and veins uniformly pale fuscous, a 
small clear spot bordering apex of cuneus. 
Genital claspers distinctive, fig. 134. 
FEMALE.—Length 4.10, width 1.66. Very 
similar to male in color and pubescence. 
Known DistriputTion.—lIllinois, Michi- 
gan, New Jersey, New York, Pennsylvania, 
Wisconsin. 
Illinois Records. — GALEsBURG: | 2 ; 
ay 16, 1892, 19 . 
Ceratocapsus incisus Knight 
Ceratocapsus incisus Knight (1923d, p. 532). 
Mave.—Length 3.70, width 1.50. Anten- 
nae with second segment slender at base and 
gradually thickened toward apex; third 
brownish, nearly equal in thickness to second 
segment; fourth brownish, equal in thick- 
ness to third segment. Disk with fine, black 
punctures similar to those on clavus and 
corium. Dorsum clothed with prominent, 
suberect, yellowish pubescence, intermixed 
on scutellum, clavus and corium with closely 
appressed, silvery, sericeous or scalelike pu- 
bescence. General color very dark brown, 
more yellowish on clavus, embolium and 
base of pronotum; membrane and veins pale 
fumate, apical half fuscous, margins slightly 
paler. Legs yellowish to greenish; femora 
scarcely darker. Genital claspers distinctive, 
fig. 134. 
FEMALE.—Length 4.00, width 1.70. An- 
tennae with second segment slender, slightly 
thicker apically, yellowish; third brownish, 
paler at base; fourth brownish. Very simi- 
KNIGHT: PLANT Bucs, or MirIpAgz, oF ILLINOIS 
I13 
lar to male in pubescence and coloration. 
Foop PLants.—Occurs on willow (Salix 
sp.), alder (Alnus rugosa) and hornbeam 
(Carpinus caroliniana). 
KNown DIstTRIBUTION. 
New York, Ohio. 
Illinois Records.—NorTHERN ILLINOIS: 
1¢. EicHorn: June 24, 1932, Hicks 
Branch, on Alnus rugosa, Ross, Dozier & 
Park, 19. ELIZABETHTOWN: June 22-24, 
1932, Ross) Dozieteas bark. 262) O. HAR 
RISBURG: June 25, 1932, on Carpinus caro- 
liniana, Ross, Dozier & Park, 64, 79. 
KARNAK: June 14, 1934, DeLong & Ross, 
Aa, 
Illinois, Iowa, 
Ceratocapsus husseyi Knight 
Ceratocapsus husseyi Knight (1930c, p. 196). 
M ave.—Length 4.00, width 1.57. Anten- 
nae with second segment yellowish, fuscous 
on apical one-third; third fuscous with a 
narrow yellowish area at base; fourth fus- 
cous. Pronotum impunctate, alutaceous. 
Dorsum clothed with two types of pubes- 
cence; sparsely set with rather long, erect 
hairs; and scutellum, clavus and corium also 
bearing closely appressed, silvery, scalelike 
hairs. General color very dark brown; 
inner half of clavus, narrow area at base 
of corium, entire embolium, and base of 
pronotum, yellowish. Membrane uniformly 
fuscous, paler within areoles and on areas 
bordering cuneus. Genital claspers distinc- 
tive, fig. 134, differing from sericus Knight 
particularly in left clasper. 
FEMALE.—Length 4.40, width 1.60. Very 
similar to male in color and pubescence. 
KNown  DiIstripuTion. — Illinois and 
Michigan. 
Illinois Record.—Gatespurc: July 16, 
1892, Stromberg, 29. 
Ceratocapsus uniformis Knight 
Ceratocapsus uniformis Knight (1927c, p. 
47). 
The dorsum of this species is more sparse- 
ly covered with yellowish, simple pubescence 
than in pumilus (Uhler), and the pubescence 
in uniformis is intermixed with silvery, seri- 
ceous hairs; the punctation in uniformis is 
stronger and more distinct than in pummilus. 
Mave.—Length 3.00, width 1.50. Ros- 
trum reaching middle of hind coxae. Anten- 
nae yellowish, with fourth segment brown- 
ish. General color uniformly dark reddish 
