238 KANSAS UNIVERSITY QUARTERLV. 



ing greenish black; spots of second segment small, oblong or triangu- 

 lar, situated a little anterior to the middle of the segment; spots of 

 third and fourth segments subquadrate, removed from the anterior 

 border of the segment by about half their width; the spots are widely 

 separated from each other and do not reach the lateral margin of the 

 segments; fourth and fifth segments with a narrow yellow posterior 

 margin. Legs black, tip of front and middle femora and front tibiae, 

 except a brownish ring, yellowish brown. Wings hyaline, faintly 

 tinged with yellow; stigma brownish. — Length 8 — 9 mm. 



Four males, Magdalena mountains, N. M. (Aug., 8000 ft.). 



The species is to be distinguished from 7i m b el/at arujn by the black 

 cheeks and by the less regularly quadrate shape of the abdominal spots. 



Didea fusciipes Loew. 



A male and a female from the Magdalena mountains, N. M., 

 (Aug.). The male was taken near the top of "Little Baldy" (9500 

 ft.); the female, in Hop Canyon (at about 8000 ft.) There seems to 

 be no previous record of the capture of this species west of Pennsyl- 

 vania. 



Didea laxa O. S. 



A single female, Hop Canyon, Magdalena mountains, N. M. (Aug., 

 at about 8000 ft.). — Occurs across the country in mountainous regions. 



Xanthogramma habilis, n. sp. 



Female. Upper part of the front metallic greenish black, emitting 

 a stripe of the same color, which for most of its length is distinctly 

 more than one-third the length of the front, but anteriorly it is ab- 

 ruptly narrowed; sides of front deep yellow. Antennae dark brown, 

 first joint lighter. Face and cheeks pale yellow with no darker mark- 

 ings. Pile of occiput silvery white, near the vertex yellow. Thorax 

 with well defined pale yellow lateral stripes and two large coalescent 

 spots of the same color before the scutellum; scutellum wholly sub- 

 translucent yellow, except on the sides near the base. Abdomen no 

 wider than thorax, subopaque, black; first segment with a large yel- 

 low spot under the halteres; segments 2 — 5, each with a pair of 

 widely separated yellow spots which do not reach the lateral margins 

 of the segments, except those on the fifth; spots of the second seg- 

 ment nearly round and about in the middle of the segment; those of 

 the third and fourth segment straight, subquadrate, and near the 

 anterior margin of the segment; the spots of the fifth segment are in 

 the anterior angles; fourth and fifth segments with a narrow yellow 

 hind border. Legs yellowish, front and middle femora with a basal 

 blackish ring, hind femora black except the base and tip; hind tibiae 



