72 THE UNIVERSITY SCIENCE BULLETIN. 



characteristic connective rather than a second pair of styles. To a 

 point near the middle of these latter organs is fastened the oedagus, con- 

 sisting of a large, triangular dorsal piece, when viewed laterally, from 

 the base of which there extends caudad the lower portion of the oedagus, 

 which consists of two slender processes very much shorter than the 

 styles. In the sides of the pygofers are imbedded two long chitinous or- 

 gans as illustrated. 



Distribution: Douglas county is the only place within the 

 state where this species has been taken. There are specimens 

 in the Snow collection from Kansas City, Mo. It should occur 

 wherever its host is found. 



Hosts: Seemingly confined to honey locust. 



Genus Macropsis Lewis. 



In this genus the vertex forms only a narrow margin to the 

 pronotum, the head being almost entirely deflexed. It is as 

 wide as the short and broad pronotum, the anterior margin of 

 which is distinctly produced beyond the anterior margin of the 

 eyes. The lateral margins of the pronotum are short, the pos- 

 terior margin broadly or angularly concave, and its surface is 

 distinctly and obliquely striated. The scutellum is broadly 

 triangular and with a transverse depression before the apex. 

 Elytra are thin and rather long. 



Seven species of this genus likely occur in Kansas, five of 

 which have been taken here. These may be separated by the 

 following key : 



KEY TO SPECIES * 



A. General color above fuscous or rusty brown. 



B. Face marked with fuscous. tristis. 



BB. Face unicolorous. trimaculata. 



AA. General color, orange or green. 



B. Elytra brownish or with dark brown median stripe. 



C. Pronotum green, elytra with broad median band. 



suturalis. 

 CC. Pronotum yellow, elytra brownish. crocea. 



BB. Elytra greenish or slightly fuscous in male. 



C. Larger species, vertex pointed, propleuras of both sexes 

 marked with black spots. erythrocephala. 



CC. Smaller species, vertex more obtusely angled, propleurae 

 of female unmarked. 

 D. Females 5 to 6 mm. long, males with spots on pro- 

 pleura, viridis. 

 DD. Females less than 5 mm. long, males with pro- 

 pleui^ unmarked. gleditschiae. 



* Adapted from Osborn & Ball, Proc. Dav. Acad. Sci., vii, p. 114, 1898. 



