476 CALIFORNIA ACADEMY OF SCIENCES. 



posterior margin of the head; eye prominent, with a 

 longish hair; temporal margin with one hair behind, but 

 close to the eye, and two other hairs and two prickles; 

 occipital margin sinuous, bare; signature indistinct, with 

 anterior margin emarginate ; no distinct posterior point; 

 occipital bands brown, forking: antennal bands pale 

 smoky brown, interrupted. • 



Prothorax with rounding sides and angles, rather long, 

 and with a single hair near each. end of posterior margin; 

 a broad, even, translucent, lateral band. Metathorax 

 rather long, angulated on abdomen, with a series of pus- 

 tulated hairs along posterior margin and a broad, lateral, 

 brown band along the antero-lateral sides. Legs robust, 

 pale brown, with dark brown marginal markings and few 

 scattered hairs. 



Abdomen broadly elliptical, segments projecting slightly 

 laterally, with one to two or three long hairs in the pos- 

 terior angles ; dorsal surface with numerous weak hairs 

 arranged in transverse lines, a single series on each seg- 

 ment; segments 1—7 with large, dark brown, transverse, 

 lateral blotches, each blotch with an uncolored stigmatal 

 spot, and a few demi-pustulations with hairs along the 

 posterior margin; segment 8 with a curving transverse 

 blotch entirely across segment, and segment 9 wholly 

 colored; a broad uncolored suture between segments 8 

 and 9; the chitinized parts of the genitalia distinct, short, 

 broad; posterior margin of ninth segment rounded (para- 

 bolic) with a few longish hairs. 



Female. Body, length 2 mm., width .84 mm.; head, 

 length .56 mm., width .56 mm.; last segment of abdomen 

 with slight angular emargination; genital blotch large, 

 conspicuous. 



