from Einhudo, New Mexico. 511 



(1) Perdita Townsendi, Ckll. 



Both sexes, Sept. 25 and 26. Known before only from 

 the White tSands. 



(2) Perdita ojfinisj Cress. 

 Known before only from Colorado. Many taken, Sept. 26. 



{i^) Perdita rhodura, sp. n. 



? . — Length hardly 6 millim. 



Head and thorax dark olive-green, moderately hairy, face 

 not hairy ; abdomen banded. Head ordinary, front strongly 

 granular; antenna} dark brown, stripe on scape and flagellum 

 beneath dull yellowish or ochraccous ; labrum, mandibles 

 (except ti})s), and face-marks white; sides of clypeus with 

 large shallow punctures ; loAver half of clyj)eus white, the 

 white extending upwards in three to;)th-like projections, 

 the lateral ones having the clypeal dots at their base; the 

 U])per outline of the white on the clypeus is that of a W; 

 lateral face-marks broad below, gradually tapering to a blunt 

 point opposite the upper edges of the antennal sockets. 

 Tubercles white at ends; mesothorax granular and sparsely 

 punctured ; tegulaj hyaline, with a dull white spot ; wings 

 hyaline, iridescent ; nervures dark brown, stigma hyaline 

 except margin, poststigmalal portion of marginal cell a little 

 longer than substigmatal, second submarginal large, narrowed 

 more than half to marginal, third discoidal distinct. Legs 

 black; trochanters, knees, anterior and middle tibiae in front, 

 and anterior tarsi light yellow or yellowish white. Abdomen 

 above with segments 1 to o white, 4 and 5 brownish orange; 

 segments 1 to 3 with piceous bands at base and hind margin, 

 4 with similar but more suffused banding. Venter dull 

 yellowish, becoming orange at apex. 



cJ. — Length 5 millim. 



Antennae bright lemon-yellow, funicle and flagellum 

 (except last two segments) largely piceous above ; face all 

 bright lemon-yellow up to the level of the length of the scape 

 above insertion of antennae, the yellow including the ante- 

 orbital black spots; labrum and mandibles (except extreme 

 tips) lemon-yellow ; prothorax (except two spots anteriorly 

 and quadrate patch on pleura) yellow ; legs yellow, hind 

 tibiffi behind and hind tarsi piceous ; abdomen with the first 

 segment piceous at base, but no well-defined bands, only 

 suffused ones along hind margins of 1 and 2. 

 Hab. Embudo, Sept. 25. Many specimens. 



