142 
robust than male; dark color more brown- 
ish than black. 
Foop PLant.—White ash (Fraxinus 
americana). 
Known DistriBUTION.—lIllinois, Iowa, 
Michigan, Minnesota, Ohio, Pennsylvania, 
Quebec, South Dakota, Texas. 
Illinois Records.—NorTHERN ILLINOIS: 
June, 39. FRANKFORT: June 8, 1933, on 
Fraxinus sp., Mohr & Townsend, 7 ¢, 35¢@. 
Patos Park: June 19, 1909, A. B. Wolcott, 
1 ¢@, rm. RocKForp: June 11, 1933, Mohr & 
Townsend, 19. UrpBana: June 1, 1889, 
Lode, leOse 
Neoborus populi Knight 
Neoborus populi Knight (1929c, p. 4). 
Matre.—Length 4.20, width 1.70. Head 
yellowish; tylus, spot above each antennal 
socket, and mark either side of median line 
of frons, black. Rostrum, length 1.06, nearly 
attaining hind margin of sternum, yellowish, 
apex black. Antennae with first and second 
segments black, third brownish, fourth yel- 
lowish. Calli prominent, black, surrounded 
by yellowish, posterior half of disk black, but 
this not joined with black on calli; lateral 
margins of disk slightly sinuate, not dis- 
tinctly carinate. Body clothed with prom- 
inent, erect, pale pubescence, hairs longer 
Fig. 156.— Neoborus popult, 9. 
ILttino1is NATuRAL History SuRVEY BULLETIN 
Vol. 22; Aria 
and more prominent than in pubescens 
Knight. General color pale to yellowish, 
shaded with black; scutellum yellow, with- 
out vitta; calli, mesoscutum, inner apical 
half of clavus, all except apex of embolium, 
outer margin of corium exterior to radial 
vein, line extending across apical area of 
corium to inner angles, pleura, and sternum, 
black. Cuneus clear; membrane and veins 
very dark, almost black. Legs yellowish, 
apical halves of hind femora and bases of 
tibiae becoming almost black. 
FEMALE.—Fig. 156. Length 4.60, width 
1.90. Very similar to male in pubescence 
and coloration, except black areas some- 
what reduced; hind femora each with two 
incomplete, subapical black annuli; mem- 
brane fuscous to almost black. 
Foop PLant.—Cottonwood (Populus 
SDi)e 
KNown  DistriBpuTION.—Illinois. 
Illinois Records.—ILuiNots: 12, 39. 
GaLEsBuRG: July 16, 1892, 22,29. UR- 
BANA, BROWNFIELD Woops: July 19, 1926, 
Vera G. Smith, 1 ¢, 19, Kc; July Zoe eee 
CSA art ice 
Neoborus vittiscutis Knight 
Neoborus vittiscutis Knight (1923d, p. 566). 
Mave.—Length 4.00, width 1.86. Head 
almost black; bucculae, and margins of juga 
and lora, paler. Rostrum, length 1.16, reach- 
ing to middle of intermediate coxae, pale, 
apex black; antennae pale except second 
segment, which is reddish or dusky apically. 
Pronotum coarsely punctate, with an erect, 
pale hair arising from each puncture; black, 
shining, spot on median line, an indistinct 
ray behind each callus, and carinate lat- 
eral margin, pale. Scutellum pale with a 
narrow, black area at base and a median 
black line, median line more slender apically; 
mesoscutum black, clothed with pale pubes- 
cence; sternum and pleura black. Hemely- 
tra with emboliar margins slightly sinuate; 
black, shining, coarsely punctate, slightly 
paler and somewhat translucent along claval 
veins at a spot near base of corium; cuneus 
pale translucent, apex with a narrow fus- 
cous area. Membrane uniformly fuscous, 
scarcely paler near apex of cuneus. Legs 
uniformly pale. 
FEMALE.—Length 5.00, width 2.30. An- 
tennae pale. Pronotal disk yellowish testa- 
ceous with a black line bordering lateral 
carina and an indistinct, fuscous line be- 
