14 PROCEEDINGS OF THE ACADEMY OF [1895. 



each side; sides of face, in front of eyes, yellow, the yellow extend- 

 ing upward about the length of scape above the level of insertion of 

 antenna?. Scape yellow, funicle and flagellum yellowish below and 

 above brownish below. 



Abdomen shining, smooth, with a very few hairs near apex ; sepia 

 brown, with broad, yellow bands (not reaching the lateral margin 

 on second segment) occupying the anterior halves of the 2d, 3d, and 

 4th segments, with another obscurely indicated at hind margin of 

 4th. The bands are somewhat suffused, not clean cut, at their edges. 



Underside of abdomen yellow, brownish towards the tip. Legs 

 yellow and black. Anterior tibia? and tarsi canary-yellow, femora 

 yellow with a black blotch on inner side, and mostly black without. 

 Middle legs duller, femora mostly black, tibise partly so. Hind legs 

 with femora and tibia? black except their ends, tarsi darkened. 



Wings hyaline ; stigma almost, veins quite, colorless. Third dis- 

 coidal absent. 



Recognized among the species with partly yellow face by the 

 yellow extending above level of insertion of antenna? along the 

 margin of the eyes but not in the median line, and by the small size 

 and suffused tints. 



Hab. — Las Cruces, N. M., on campus of N. M. Agric. Coll., 

 September. (CklL, 2,398.) 



Mr. Fox writes of austini that it is " near zebrata but differs by the 

 more slender legs, 2d submarginal cell narrower at the top; the head 

 retreats more rapidly behind the eyes. It differs principally from 

 ventralis by this latter character." 



Perdita martini n. sp. d ■ 



About 4 mm. long; head and thorax dark metallic-blue 

 moderately hirsute with white hairs. Crown very finely punctured. 

 Face up to level of anterior ocellus, including clypeus, entirely pale 

 primrose-yellow ; except for a black dot close to anterior margin of 

 eye on each side, as far from nearest lateral ocellus as that is from 

 the opposite lateral one. 



Antenna? pale primrose-yellow, and with first 8 joints of flagellum 

 above largely dark brown. Cheeks below middle of eyes pale yellow. 



Thorax, except the minutely roughened metathorax, sparsely 

 punctured. 



Prothorax pale primrose-yellow with a median transverse metallic- 

 blue band. 



