September, 1941 
tant) by the sharp outer edge of its embo- 
lium. 
Mave.—Length 2.90, width 1.37. Head 
width 0.63, vertex 0.37. General color 
black; juga and lora more brownish. Ros- 
trum, reaching hind margin of mesosternum, 
length 0.67. Antennae, first segment, length 
0.27; second, 0.60; third, 0.57; fourth, 0.68; 
first three segments pale, fourth fuscous. 
Pronotum, length 0.86, width at base 1.20, 
height from basal angle 0.53. Punctation, 
pubescence and coloration nearly as in dila- 
tatus, but hemelytra not so broadly dilated; 
apical pale spot on embolium sometimes 
nearly obsolete. Membrane and veins dis- 
tinctly fuscous, darker at base and on veins, 
apical margins paler and more brownish. 
Legs pale; front coxae except apex, and 
apical half of femora, fuscous to black. 
FEMALE.—Fig. 101. Length 2.80, width 
1.36; similar to male in form and coloration. 
Known DistriputTion.—Described from 
the Ozarks of Missouri, and now found in 
southern Illinois. 
Illinois Records.—ALton: July 19-21, 
1932, Ross & Dozier, 1 @ ; June 27, 1934, 
DeLong & Ross, 1¢. ELIZABETHTOWN: 
May 22-24, 1932, Ross, Dozier & Park, 19. 
Pycnoderes drakei Knight 
Pycnoderes drakei Knight (1926e, p. 106). 
Not yet collected in Illinois; known only 
from Mississippi. 
CYLAPINAE 
Represented in Illinois by two tribes, 
the Cylapini and Fulviini keyed out on pp. 
19 and 20. 
CYLAPINI 
Cylapus Say 
Cylapus tenuicornis Say 
Cylapus tenuicornis Say (1832, p. 26). 
Aputts.—Length 5.50-6.00, width 2.20. 
General color brownish gray, marked with 
white. Distinguished by the long, slender 
antennae and prominent, protuberant eyes. 
Hapits.—This is a very active species, 
usually to be found on dead and fungus- 
covered tree trunks. 
Known DistrisuTion. — Originally de- 
scribed from Indiana, and since recorded 
KNIGHT: PLANT Bucs, or MiripAE, oF ILLINOIS 61 
from Illinois, Maryland, New York, Penn- 
sylvania, Ontario, Virginia. 
Illinois Records. — Mount CarMev: 
June 30, 1906, 1 @. OrkEcon: July 9, 1925, 
(eel ee cisonss 16m = SAVANNA: © july? 29, 
1892, base of bluff, 19. 
FULVIINI 
KEY TO GENERA 
Tarsi three-segmented; lateral margins of 
pronotum rounded near anterior angles, 
not shelflike, fig. 68...... Fulvius, p. 61 
Tarsi two-segmented; lateral margins of 
pronotum sharp and shelflike for their 
entire length, fig. 102...Peritropis, p. 62 
Fulvius Stal 
REY LOSS EE CLES 
Second antennal segment uniformly pale 
yellow; scutellum brown with a pale spot 
Ata Dex. eee teen See brunneus, p. 61 
Second antennal segment brown, white at 
apex; scutellum uniformly brown...... 
5 ea a ee Aare el tae imbecilis, p. 61 
Fulvius brunneus (Provancher) 
Lygus brunneus Provancher (1872, p. 104). 
Apu tts.—Length 3.40, width 1.10. Gen- 
eral color brown, marked with yellowish 
and white. Second antennal segment pale 
yellowish; femora brown like pronotum, 
basal half of cuneus white; apex of scutel- 
lum and an area on hemelytra pale. 
Known DistripuTion. — Originally de- 
scribed from Ontario, and since reported 
from Colorado, District of Columbia, Ili- 
nois, lowa, Kansas, Massachusetts, Virginia. 
Illinois Records.—OLIvE BRANCH: Sept. 
29, 1909, W. J. Gerhard, 19, FM. WEsT 
PULLMAN: July 13, 1902, W. J. Gerhard, 
135 Oct. 2/1912, ANB. Wolcott, 11607 EM: 
WILLow Sprincs: Aug. 4, 1912, W. J. 
Gerhard, 19, FM. 
Fulvius imbecilis (Say) 
Capsus imbecilis Say (1832, p. 25). 
Aputts.—Length 4.00, width 1.20. Very 
similar to brunneus (Provancher), but 
larger. Second antennal segment brown with 
apical third white; femora yellowish brown; 
scutellum dark brown. 
