96 PROCEEDINGS OF THE ACADEMY OF [1896. 



the small thorax, when seen from the front almost precisely circu- 

 lar. Front quite hairy, with white hairs ; cheeks hairy. Antenna 

 dark brown above, pale yellowish beneath. Clypeus rather cocked- 

 hat-shaped. Pale markings of face cream color, confined to clypeus 

 and sides of face, with, of course, the labrum and basal portion of 

 mandibles. Seen all together, they suggest the head of one of the 

 long-eared bats, whence the specific name. The darkened upper 

 portion of the labrum represents the bat's mouth. Clypeus cream- 

 color, with the usual dots obscui'e. Lateral face-marks broadly tri- 

 angular, the inner angle opposite the clypeal dots, the upper one 

 (of al)out 45°) on a level with the antennal sockets. Thorax shin- 

 ing, smooth, tolerably hairy. Prothorax, including tubercles, dark, 

 the tubercles brownish. Teguloe hyaline ; wings hyaline, irides- 

 cent, nervures colorless, stigma margined with very pale yellowish. 

 JNIarginal cell fairly long and narrow, the poststigmatal portion a 

 little the longer. Second submarginal subtriaugular, narrowed a 

 little more than half to marginal. Third discoidal absent. 



Legs dark brown with the tarsi brownish-white ; anterior tibiae 

 yellowish except a suftused brownish patch behind, middle tibiae pal- 

 lid in front. 



Abdomen short and broad, above dark brown without pale mark- 

 ings, but the distal margins of the segments more or less pale. 

 Venter brown, 



Hab. — Las Cruces, N. M., Oct. 5, 1895, one specimen on Chry- 

 sopsis villosa. No more could be seen. The locality is about a mile 

 southeast of the Agricultural College. This little species has some 

 resemblance to californica and its allies, but a glance at the face 

 will distinguish it. 



Three -yjecies ivith larr/e heads, from New Mexico, found on Compositce. 

 60. Perdita grandiceps n. sp. 



$. — Length about 5 mm. Form stout; head quadrate, ex- 

 tremely large, larger than the thorax, eyes nari'ow, cheeks armed 

 with blunt teeth. Face flattened, very sparsely and inconspicuously 

 hirsute, cheeks hairy beneath. Color of head very dark bottle- 

 green ; vertex granular, it and front looking almost silky, cheeks 

 much more shiny. Mandibles stout, curved, scimitar-shaped, base 

 pale yellowish, end rufescent, blackish on inner side. Antennre 

 blackish above, yellowish-brown beneath ; scape piceous, with a 

 light yellowish spot at base in front. Clypeus rather low, anterior 



