OF WASHINGTON, VOLUME XIV, 1912. 31 



costae; elytra flattened, slightly narrowed towards base, in- 

 terspaces 1, 3, 5, and 7 obtusely elevated, even interspaces 

 slightly narrower than strial punctures, the latter close set, 

 regular, deep, subquadrate, head with side margins scarcely 

 reflexed, divergent posteriorly, front densely granulate, the 



granules coarser towards the sides schwarzi, n. sp. 



British Columbia (Vancouver). 



SUBSERIES D2. 



Length 3 mm. Head coarsely densely granulate, prothorax 

 longer than wide, sides nearly parallel and straight, anterior 

 angles rather obtuse, posterior angles sharply rectangular. 



vegrandis Horn 

 California (Berkeley). 



SERIES C4. 



Pronotum without distinctly elevated costas between median 



impression and the margin SUBSERIES D3 



Pronotum with a distinct costa between median impression and 



margin SUBSERIES D4 



SUBSERIES D3. 



Length 2 mm. Median impression of pronotum strongly im- 

 pressed, the hooked-formed elevations on anterior margin 



distinct, easily traceable referendarius Zimm. 



District of Columbia to Florida. 



SUBSERIES D4. 



Length 3 mm. Punctures of elytra striae about as wide as even 

 interspaces; pronotum longer than wide, sides very broadly 

 curved and narrowed posteriorly, median impression dis- 

 tinctly impressed, costa between margin of pronotum and 

 margin of median impression strongly sinuate anteriorly, 

 joined in a broad U curve to elevated margin of concavity, 



surface coarsely evenly granulate servus Horn 



California 



Length 2.5 mm. Punctures of elytra strias comparatively large, 

 even interspaces obsolete or nearly so. Body very slender, 

 castaneous, legs and antennae a little lighter; pronotum a 

 little longer than broad, its sides nearly straight or slightly 

 convergent posteriorly, anterior angles broadly rounded, 

 posterior subrectangular to rounded, a fine, straight, very 

 feebly elevated costa between median impression and mar- 

 gin, median impression suboval, shallow, its margins re- 

 tuse; extending into the impression for about one-fourth its 

 length are two pairs of acutely elevated lines, the one from 

 the anterior and the other from the posterior margin, the 

 latter pair joined by a transverse curved ridge; surface 



