172 Trans. Acad. Sci. of St. Louis. 



about eight black spinules. Length 3.5 mm.; width 0.65 mm. Cali- 

 fornia (near San Francisco) gulare n. sp. 



Body nearly similar in form aud coloration to the preceding, the head and 

 abdomen blackish, the elytra brighter rufous and less clouded; head 

 finely, less closely punctate, similar in form but with the eyes evidently 

 larger, more obviously wider than the prothorax, the latter very dis- 

 tinctly wider than long, nearly parallel at the sides, the angles moder- 

 ately rounded; elytra about as long as wide, a third wider and three- 

 fifths longer than the prothorax; gular sutures broadly arcuate and 

 slightly impressed, nearly as in gulare in form, the under surface of 

 the head more coarsely, closely and subscabrously punctate. Median 

 process of the fifth segment broader, nearly half as wide as the sinus, 

 its apex truncate, becoming only just visibly sinuate toward the middle, 

 its lateral angles rather broadly rounded and with the sides becoming 

 parallel only at the base; fimbriate sides rather strongly curved, each 

 with about six or seven porrect black spinules, surface with a sparse 

 arcuate series of bristles before the process. Length 3.4 mm.; width 

 0.65 mm. California (probably the middle coast region).. distans n. sp. 



19 — Head narrow, somewhat longer than wide and not wider than the 

 prothorax in the female, the sides long, straight and parallel behind the 

 moderately developed eyes, the basal angles moderately rouuded. Body 

 slender, the anterior parts finely, sparsely punctured and polished, 

 piceous-black, the abdomen blackish, the elytra paler and brownish- 

 rufous; prothorax only just perceptibly wider than long, nearly par- 

 allel and straight at the sides, the angles rather broadly rounded; 

 elytra relatively much smaller than usual, about a fourth wider and 

 scarcely one-half longer than the prothorax, scarcely as long as wide; 

 under surface of the head polished, finely, sparsely punctured and 

 convex, the gular sutures parallel and straight through the greater part 

 of their extent aud distinctly impressed. Male unknown. Length 4.0 

 mm. ; width 0.65 mm. California (San Francisco) Inctuosum Csy. 



Head perceptibly wider than the prothorax in both sexes, rather wider than 

 long, the sides parallel and straight behind the eyes, the basal angles 

 moderately broadly rounded 20 



20 — Smaller species, pale flavo-testaceous in color, more or less feebly 

 clouded with piceous — notably on the posterior parts of the abdomen. 

 Head only very slightly wider thau the prothorax, finely, not densely 

 puuctate; prothorax rather large and well developed, notably wider 

 than long and unusually strongly obtrapezoidal in form, the angles 

 narrowly rounded; elytra rather small, quadrate, a fifth wider and 

 about one-half longer than the prothorax; gular sutures straight. 

 Median process of the fifth ventral short, about two-fifths as wide as 

 the sinus, the latter relatively somewhat smaller and deeper than 

 usual, the process very feebly, almost evenly sinuate at apex, its lateral 

 angles narrowly rounded and with its sides parallel at base; fimbriate 

 sides strongly curved and having unusually coarse black spinules; sur- 

 face without the arcuate series of bristles before the process but 

 clothed with very coarse black hairs throughout. Length 3.4 mm.; 

 width 0.6 mm. California (Siskiyou Co.) pallescens n. sp. 



Larger species, piceous-black, the prothorax and elytra rufo-piceous, the 



