140 
and median vittae on pronotal disk, 
all of scutellum except basal angles 
and median line at base, and cor- 
IU giMorc Or ess Nal meee eee 
....ameoenus var. signatus, p. 140 
Black; only cuneus and membrane 
Paley ia eters eee a ene 
...amoenus var. atriscutis, p. 140 
8. First antennal segment black........ 9 
First antennal segment pale........ (idl 
9. Scutellum very dark brown on either 
side of median line, basal angles 
paler; hemelytra translucent red- 
dish brown; cuneus colored similarly 
Lo-cOrU nen rufusculus, p. 143 
Scutellum testaceous, sometimes 
brownish on middle at base, never 
black with median line paler...... 10 
10. Second antennal segment yellowish 
brown, sometimes black near base; 
cuneus translucent yellowish to 
brownish.......canadensis, p. 141 
Second antennal segment uniformly 
black; cuneus clear and translucent 
B Sty 5 ROA tea cence me populi, p. 142 
11. Dorsum uniformly black, cuneus 
Clear iegsipalcane see tricolor, p. 143 
Dorsum more or less pale, scutellum 
always partly yellowish.......... 12 
12. Scutellum with a median black line 
extending from base to apex; female 
with embolium and outer margin of 
corium black and inner apical angle 
of cor1um dull yellow brown...... 
ae rete vittiscutis, p. 142 
Scutellum yellow, sometimes dark at 
middle of base, but never with a 
median black line; female with 
inner apical angle of corium black 
and embolium chiefly pale........ 
ere er Ml: pubescens, p. 141 
Neoborus geminus (Say) 
Capsus geminus Say (1832, p. 24; 1859, p. 
44), 
Abputts.—Length 4.80—-5.30, width 2.20. 
General color deep black, shining; legs, first 
antennal segment and base of second, and 
cuneus except apex, pale; front of head 
usually with pale marks. 
Foop PrLant.—White ash (Fraxinus 
americana). Usually occurs with amoenus 
(Reuter) during June. 
KNown DistriBpuTION.—Described from 
Indiana and since recognized from Illinois, 
Ohio, Ontario, New York. 
ILLINoIs NATURAL History SURVEY BULLETIN 
Vol. 22, Aria 
Illinois Records. —GALEsBURG: June 8, 
1893, 19. SHAWNEETOWN: May 27, 1928, 
‘PSH iirisonslece 
Neoborus amoenus (Reuter) 
Tropidosteptes amoenus Reuter (1909, p. 48). 
Aputts.—Length 4.30—-5.00, width 2.00. 
General color pale yellowish, marked with 
reddish and fuscous, and sometimes with 
black; pronotum with five to seven fuscous 
or reddish rays, clavus and apical area of 
corium marked with bright red, sometimes 
tinged with fuscous; apex of second antennal 
segment and sometimes third and fourth 
fuscous. 
The typical form of this species is mostly 
pale; darker specimens may be designated 
by varietal names. Of these, amoenus sig- 
natus (Reuter) (1909, p. 49) and scutellaris 
(Reuter) (1909, p. 49) and intergrading 
forms have been taken together in Illinois; 
variety atriscutis Knight (1929c, p. 10) has 
not yet been taken in the state. 
Foop PLants. — White ash (Fraxinus 
americana) and red ash (F. pennsylvanica), 
especially the latter. Nymphs occur on the 
trees from May to September; there are 
apparently two broods per year. 
Known DIstriBUTION.—Common from 
Texas and Kansas northward to North Da- 
kota and eastward to the Atlantic Coast. 
Illinois Records.—Ninety-six males, 107 
females and 2 nymphs, taken May 24 to 
Oct. 2, are from Antioch, Chicago, De Soto, 
Dubois, Elizabeth, Elizabethtown, Evanston, 
Gibsonia, Glen Ellyn, Golconda, Harris- 
burg, Havana, Iroquois, Kappa, Keithsburg, 
Monticello, Mound City, Normal, Oregon, 
Pinkstaff, Quincy, St. Joseph, Savanna, 
Shawneetown, Starved Rock State Park, 
Ullin, Urbana. 
Neoborus glaber Knight 
Neoborus glaber Knight (1923d, p. 563). 
Mave.—Length 4.60, width 1.90. Prono- 
tum grabrous, shining, coarsely punctate, 
lateral margins sharply defined, but not 
prominently carinate; yellowish testaceous 
with a large, flaring, dark brown ray ex- 
tending from each callus to posterior margin. 
Hemelytra with emboliar margin slightly 
sinuate, widest behind middle; very dark 
brown to piceous, shining, coarsely and rath- | 
er closely punctate, glabrous or with only a 
minute hair set in pit of coarse punctures; 
