42 KANSAS UNIVERSITY SCIENCE BULLETIN. 



and venter yellow ; wings hyaline, second and third veins about 

 straight, hind cross-vein one and a half times its length from 

 the small. Length, 2.5 mm. 



One specimen; Arizona. Collected by Dr. F. H. Snow, Au- 

 gust, 1902. 



Chlorops palpalis, n. sp. 



Head reddish yellow, occiput with two narrow lines above, 

 frontal triangle with ocellar dot, and a spot in each angle, the 

 rounded third antennal joint, except base, and palpi, black, 

 arista whitish with base yellow, face and cheeks light yellow ; 

 mesonotum reddish yellow, shining, with the usual three broad 

 black stripes and two narrow lateral ones, humeri without 

 black dots, pleurae without markings, scutellum reddish yellow, 

 halteres whitish ; legs, except the fuscous tips of the tarsi, yel- 

 low ; abdomen fuscous, posterior margins of segments and venter 

 yellowish ; wings hyaline, second and third veins straight, hind 

 cross-vein twice its length from the small. Length, 3.2 mm. 



Twospecimens ; Atherton,Mo. Collected by the writer during 

 May and July. 



Chlorops albifascies, n. sp. 



Head yellow, center of occiput above, frontal triangle, 

 rounded third antennal joint, with base of arista, black, frontal 

 triangle with a shallow longitudinal sulcus, first two joints of 

 antennae dark brown, distal portion of arista whitish, face 

 whitish, mouth-parts yellow; mesonotum yellow, marked with 

 five opaque black vittse, humeri without dots, pleurae and 

 scutellum yellow, immaculate, halteres whitish'; legs yellow, 

 tips of tarsi black ; abdomen largely obscure yellow, sutures 

 and spot in anterior angle of second segment black, venter yel- 

 low ; wings hyaline, second and third veins straight, hind cross- 

 vein over twice its length from the small. Length, 3,5 mm. 



Seven specimens ; Atherton, Mo. Collected by the writer 

 during May and June. 



Chlorops parva, n. sp. 



Head yellow, occiput except upper and lower parts of sides, 

 the small frontal triangle, distal portion of the rounded third 

 antennal joint, the short pubescent arista, and the clypeus, 

 black, palpi yellow; mesonotum yellow, with three opaque 



