156 
9 a) 
— ae 
i) 
(nm 
Ittinots Natura. History SuRvEY BULLETIN 
spine longer and stouter than pos- 
terior spine, fig. 164. .ostryae, p. 164 
20. Length of second antennal segment 
scarcely exceeding width of poster- 
lor margin of pronotum; rostrum 
scarcely attaining apices of hind 
coxae; hemelytra greenish yellow 
with apical spot on corium and 
inner margins of clavus dark brown- 
ishitoralmostablickva ay een 
eae rpee. ore clavigenitalis, p. 163 
Length of second antennal segment 
much exceeding width of posterior 
margin of pronotum; rostrum ex- 
tending slightly beyond apices of 
hind coxae; clavus and corium dark 
brownish 7.o0 8 seneseensis, p. 159 
21. Pale greenish yellow; clavus and large 
spot on apical half of cortum very 
dark brown; femora greenish yellow, 
with faint, fuscous bands near 
ADICES 5 eee ha eee are ae eee 
canadensis var. canadensis, p. 164 
Color yellowish to brownish; apical 
half of corium brownish, but this 
colored area not forming a definite 
spot; femora brownish or reddish. .22 
Femora and, usually, sides of body 
distinctly reddish; hind femora with 
dark reddish bands before apices. . 
BER ere Sele quercalbae, p. 160 
Femora and sides of body dark brown 
to fuscous; hind femora with dark 
brown bands before apices........ 
Tor hake Mae ape omnivagus, p. 163 
. Pronotal disk dark, but without dis- 
finctira ys Wee ey. faeces e e eee 24 
Pronotal disk with distinct, dark rays 
ORspots behind icalliee, sae ene og 
. Sides of body and hind femora dis- 
tinctly reddish; femora with pale 
and dark red bands near apices... . 
ae ade ia quercalbae, p. 160 
Sides of body and femora not reddish. 25 
. Hind femora black, with paler bands 
near apices; hemelytra black, costal 
margin scarcely paler, cuneus clear, 
apex«darks Sephari usc. aes. eee 
A oe aah caryae var. caryae, p. 161 
Hind femora greenish to brownish, 
without subapical:bands.aseae eee 26 
. Embolium greenish, clavus and inner 
half of cortum dark fuscous to al- 
mosteblaciia ay aan ate tiliae, p. 161 
Embolium scarcely paler than corium, 
hemelytra and whole dorsum nearly 
Sao) 
30. 
SF 
34, 
V ol. 22, Ari 
uniformly dark brown) .5 79.) ae 
1 Tag's, Sale SO ee hirticulus, p. 163 
. Hind femora with two dark brown or 
pale bands near apicesy eee 28 
Apical halves of hind remora dark 
brown to black, but without two 
distinct bands, pale only at apices. 32 
. First and second antennal segments 
black; embolium, outer half of 
corium and cuneus, pale and trans- 
lucent. 2.9 ae johnsoni, p. 162 
First antenna] segment pale or only 
slightly brownish; apex of embol- 
ium and outer half of corium dark- 
ened; if not, then first antennal seg- 
ment distinctly pales’2) =e 29 
Sides of body and usually hind femora 
distinctly reddish. .communis, p. 159 
Sides of body and femora not reddish. 30 
Embolium and basal half of corium 
pale, a large black spot on Spica 
half of corium; clavus and a nearly 
quadrate spot behind each callus 
black; calli and areas just anterior 
to them not.black. a2. =.= 
canadensis var. binotatus, p. 164 
Embolrum usually darkened apically; 
if not, then calli and areas just an- 
terior to them black) 3.4) 3t 
. Apex of median line of scutellum and 
all but cuneus of hemelytra dark 
brown to black: 77299. 
tee a es.” caryae var. caryae, p. 161 
Scutellum and basal half of corium 
and embolium distinctly pale..... 
oe caryae var. subfuscus, p. 161 
2. Scutellum with a darkened median 
line; apex and inner margin of 
cuneus, femora and variable areas 
on sides of body, reddish. aaa 
Me eee eas. univittatus, p. 160 
Scutellum never with a dark brown 
median line. . ... .3 gee 33 
Pronotal disk with small fuscous mark 
behind each callus; venter dark 
brown, with a pale, lateral stripe. .. 
Heed eee semivittatus, p. 163 
Pronotal disk with distinct black ray 
or spot behind each callus; venter 
without pale, lateral stripe........ 34 
Pronotal disk with two conspicuous, 
nearly square black spots, one be- 
hind each callus; ground color yel- 
lowish brown; hind femora black 
except at tips. . .atrinotatus, p. 162 
