106 
Antennae, first segment, length 0.34; second, 
1.05, yellowish brown, green at base; third, 
1.01, dusky brown; fourth, 0.43, fuscous. 
Pronotum, length 0.48, width at base 1.08; 
disk rather flat, anterior margin and calli 
Fig. 130.— Labopidea allii, the long-winged 
form. 
slightly arched. Body clothed with fine, 
erect, simple, pale hairs, this pubescence 
longest on clavus, base of embolium, mar- 
gins of pronotum, and frons; on pronotum 
and hemelytra minute, silvery, sericeous 
hairs which shine in certain lights also 
present. General color a pale blue green; 
antennae, except first segment, brownish; 
membrane uniformly pale fumate, veins 
Ittinois NATURAL History SuRvVEY BULLETIN 
Vol. 22, Arte@ 
about smaller areole green; tip of rostrum 
black. Male genital claspers distinctive for 
species, fig. 132. 
FEMALE.—Length 4.10, width 1.48. More 
robust than male, but very similar in color 
and pubescence. Brachypterous females are 
at hand from Iowa; in these the last two. 
segments of abdomen are exposed, cuneus 
short and membrane lacking. 
Host PLants.—Wild garlic (Allium can- 
adense) and wild onion (Allium cernuum) ; 
Fig. 131.—Labopidea allii, the short-winged 
form. 
this species often migrates to cultivated 
onions, where it becomes exceedingly abun- 
dant, often killing the plants. In southern 
Missouri from 1934 to 1936, many plantings 
of Bermuda onions were destroyed. La- 
bopidea alli is also reported as a pest in 
southern Iowa and eastern Kansas. The 
bug winters as an egg in old onion stems. 
Destroying the old onion tops and eradicat- 
