178 
IOWA ACADEMY OP SCIENCES 
Texas, Colorado, and California. In addition to this, speci- 
mens are at hand from Oregon, Utah, Arizona and Nebraska, 
and it has been collected at Ames rather commonly. 
The adults are six or seven millimeters long by two millime- 
ters wide across the pronotum; the head is slightly narrower 
than the pronotum; eyes small; vertex flat, produced and round- 
ingly angled in front, anterior margin very thin. The elytra 
are long and angularly pointed behind, the claval area is nearly 
flat while the corium is strongly deflected, becoming perpen- 
dicular at the tip, giving the insect a wedge-shaped appearance. 
The entire dorsal surface is coarsely pitted. The females are 
bright green with the tips of elytra lighter, sometimes clouded 
or minutely dotted with darker along the margins; the males 
have in addition a broad median smoky line on the vertex and 
an irregular transverse dark band on the pronotum more or 
less strongly margined with lighter before. 
Genitalia: The last ventral segment of the female is divided 
medially to its base and consists of two long, roundingly pointed 
lobes; male valve broadly, obtusely rounding, length and 
breadth about equal; plates narrow, spatulate, two and one- 
half times the length of the valve. 
Larvm : Similar in form to the adult but with a broader body 
and longer head; vertex one-half longer than wide, acutely 
angled before, margin very thin, whole depth of head less than 
one-fourth the length of the vertex; abdomen short, dorsally 
carinate; color green, the entire surface covered with short 
white hairs arising from minute black spots; a pair of larger 
black spots near the base of the wing pads and another pair on 
the posterior margin near the inner angle. 
Larvm were found nearly full grown in August; the adults 
w^ere taken from the second week in August until October. 
They were swept from a native grass pasture where they were 
fairly abundant. Specimens from Nebraska and Utah bear 
dates from May to July, indicating that the species is two- 
brooded. Observations were not made upon the field where it 
occurred during the first half of the season, which would 
account for its not being found sooner. 
This species agrees in every particular with Burmeister’s 
description and figure of grisea Germar, from Brazil, and 
undoubtedly it should be placed as a synonym of that species. 
But Fabricius’ description of viridis from “Americae insulis” 
precedes both, and though brief, agrees well with them and 
