122 CASEY 



surface very coarsely punctate and rugulose, the punctures well 

 separated except apically ; prosternum finely, sparsely punc- 

 tate, the process rather wide, only very feebly constricted at the 

 cox£e, semicircularly rounded at apex; hind femora and abdomen 

 very finely, remotely punctate. Length 11.3 mm.; width 5.2 



mm. (cf)- Precise locality not recorded convergens n. sp. 



Tarsi moderately stout as usual; prothorax less transverse n 



II — Form evenly elongate-elliptical, strongly convex, deep black, 

 alutaceous, the elytra polished ; head large, nearly half as wide as 

 the prothorax, strongly, rather closely punctate, the sinus only 

 moderately deep and wide, broadly parabolic, the lobes broadly 

 rounded, the anterior canthus narrowly rounded, very prominent, 

 somewhat more so than the posterior; prothorax unusually elon- 

 gate, less than one-half wider than long, the sides evenly con- 

 verging from base to apex, evenly and moderately arcuate, the 

 apex shallowly sinuate, fully two-thirds as wide as the base, the 

 angles right and narrowly rounded or blunt, the base broadly, 

 evenly, very feebly bisinuate ; surface finely and sparsely but 

 rather strongly punctate, somewhat coarsely and less sparsely so 

 laterally, the bead rather coarse, perfectly straight to the basal 

 angles; scutellum moderate, sharply triangular, not very trans- 

 verse ; elytra less than one-half longer than wide, scarcely more 

 than twice as long as the prothorax, the sides becoming rounded 

 behind the middle, the apex very obtuse from above; surface 

 very declivous posteriorly, very coarsely, moderately closely 

 punctate and rugose; prosternum very finely, sparsely punctate, 

 the process wide, broadly rounded at tip, feebly constricted; hind 

 femora finely but distinctly, remotely, the abdomen minutely, 

 punctate. Length 12.0 mm.; width 5.75 mm. San Francisco. 

 A single specimen, apparently female, from the suburbs, collected 



by the writer symmetrica n. sp. 



Form somewhat more oblong and scarcely so convex, deep black, 

 polished throughout ; head smaller, distinctly less than half as 

 wide as the prothorax, less coarsely, more sparsely punctate, the 

 sinus narrower and deeper, parabolic, the lobes less broadly 

 rounded, the anterior canthus similarly oblique and narrowly 

 rounded and very prominent though not more so than the poste- 

 rior ; prothorax nearly as elongate, barely one-half wider than 

 long, nearly similar but more narrowed from base to apex, the 

 latter similar but only three-fifths as wide as the base, with the 

 angles more broadly rounded, the sides of the base more posteri- 

 orly oblique; surface very sparsely, rather finely but strongly 

 punctate, gradually rather coarsely and less sparsely so laterally 

 though becoming dense near the hind angles, the bead similar but 

 rather less coarse; scutellum nearly similar ; elytra longer, one- 

 half longer than wide, more ogival at tip from above ; surface 

 less declivous posteriorly, a little less coarsely but otherwise sim- 

 ilarly punctate and rugose ; prosternum minutely, sparsely punc- 

 tate, the process semicircularly romided at tip, moderately con- 



