20 CALIFORNIA ACADEMY OF SCIENCES. 



lateral abdominal blotches on dorsal aspect, and chest- 

 nut-brown transverse median blotches on ventral aspect 

 of abdomen. 



Head, length .37 mm., width .37 mm.; front truncate 

 or with a very shallow concavity; a few small hairs on 

 sides of forehead; trabeculse long; antennae slender, 

 segment 5 distinctly longer than either segments 3 or 

 4; eye distinct, slightly pendulous; temples not much 

 expanded, margins flatly rounded, with one long hair 

 and a few prickles; occipital margin straight; ground 

 color whitish to uncolored; broad black antennal bands 

 running to anterior angles of head and bending in 

 angularly at base of trabecular; rest of forehead and 

 trabecules uncolored; no colored clypeal signature; an- 

 tennae with segment 1 uncolored, other segments en- 

 tirely blackish brown; ocular bands narrow, blackish; 

 anterior part of temporal margins narrowly blackish; 

 a brown, shield-shaped occipital signature showing 

 through; mandibles and oesophageal sclerite showing 

 through, brown. 



Prothorax quadrangular, with rounded posterior an- 

 gles with one hair in angle; segment whitish with 

 broad lateral blackish brown borders. Metathorax 

 angulated on abdomen; lateral angles obtuse; five long 

 hairs on each latero-posterior margin; segment whitish, 

 with uneven broad blackish lateral borders. Legs 

 whitish with blackish brown blotches and semiannula- 

 tions. Sternal markings consisting of distinct, chest- 

 nut-brown intercoxal lines, with expanded inner ends 

 touching a small median blotch. 



Abdomen elongate-ovate, with not very long hairs in 

 posterior angles, and two hairs on the posterior margin 

 of the dorsal aspect of each segment; ground color clear 

 to whitish; broad lateral bands, from which project 

 inwards the outlines of lateral transverse blotches which 



