120 CALIFORNIA ACADEMY OF SCIENCES. 



spot just outside the mandibles connected with them 

 by a narrow brown band; mandibles dark, showing 

 through the head; ocular blotches small, narrowing 

 posteriorly; occipital margin with a narrow brown band 

 and small occipital blotches. 



Prothorax with anterior angles slightly produced, a 

 short prickle and a long hair in the angle, a series of 

 long hairs on the rounding posterior margin; trans- 

 verse and longitudinal chitin bars pale yet distinct; no 

 blotches. Metathorax with slight lateral emargination; 

 posterior margin nearly straight, with a series of spiny 

 hairs; a pale golden, narrow, mesothoracic, transverse 

 band, and similarly colored, wider, metathoracic bands. 

 Legs pale golden; femora thick. A median prosternal 

 blotch, shield-shaped, with a lateral process projecting 

 backward and outward; metasternum with a pale median 

 blotch from which short spiny hairs arise. 



Abdomen elliptical, with posterior angles of the seg- 

 ments slightly produced, a few short spines on the lat- 

 eral margins, and one or two long hairs and short 

 spines in the posterior angles; a series of stiff hairs 

 along the posterior margin of the segments, those on 

 the last segments being longer; on the ventral surface 

 two transverse series of short spiny hairs on each seg- 

 ment; pale golden transverse bands extending across 

 the segments to shiny brown subcircular marginal 

 blotches; last segment rounding behind, without marg- 

 inal blotches, and with a few longish hairs. 



Female. Body, length 1.74 mm., width .67 mm.; 

 head, length ,27 mm., width .45 mm., thus being much 

 longer than the male; transverse bands of the abdomen 

 rather more distinct than in the male, the uncolored 

 sutural bands being thus made also more distinct, each 

 segment with posterior series of hairs; last segment 



