40 KANSAS UNIVERSITY SCIENCB BULLETIN. 



which has two yellow stripes on the mesonotum, but, after 

 more careful study and comparison with specimens of pullipes, 

 I recognized in it a new species. The cheeks are much broader 

 than in pullipes, and the coloration of the legs and abdomen 

 different. 



Chlorops cinerapennis, n. sp. 



Head yellow, middle of occiput, frontal triangle narrowly, 

 the rounded third antennal joint, except inner side of base, and 

 base of arista, black, face, cheeks and mouth-parts light yellow ; 

 thorax yellow, mesonotum with the usual three broad black 

 stripes plus the two narrow ones above base of wing, pile yel- 

 lowish brown, dense but extremely short, causing a pollinose 

 appearance on the black parts, pleurae and scutellum immacu- 

 late, halteres yellowish white ; abdomen fuscous, posterior 

 margins of segments and spot on anterior angles of second seg- 

 ment darker, venter yellow, pile black ; legs yellow, with the 

 tip of the tarsi fuscous ; wings intense grayish hyaline, second 

 and third veins about straight, hind cross-vein twice its length 

 from the small. Length, 3.5 mm. 



Two specimens ; Riley county, Kansas. Marlatt. 



Chlorops bilineata, n. sp. 



Head yellow, occiput, except upper and lower angles, frontal 

 triangle, antenna^, with base of arista, and clypeus, black, face 

 on sides with two narrow brown lines, third joint of antennae 

 rounded, arista with terminal portion white ; mesonotum black, 

 lateral margins yellow, humeri each with a black spot, pleura? 

 reddish yellow with four black spots, scutellum brownish, hal- 

 teres yellow ; coxse yellow, femora and tibiae, except each end, 

 black, tarsi fuscous towards tip ; abdomen black, narrow lateral 

 margins and posterior border of last segment yellow ; wings 

 hyaline, second and third veins curving forward, hind cross- 

 vein slightly lesst han its length from the small. Length, 4 ram. 



One specimen; North Park, Colo. Collected by Dr. F. H. 

 Snow. 



Chlorops liturata, n. sp. 



Head yellow, occiput in the middle and narrowly on sides, 

 frontal triangle, except two oval yellow spots, antennae except 

 arista, clypeus on sides, and palpi, black ; third joint of an- 



