Coleopterological Notices, VI. 633 



at the sides to the base; apical constriction fine, deep, entire, tlie lobe short, 

 two-thirds as wide as the base; canaliculation barely traceable; lateral impres- 

 sions feeble. Elytra scarcely more than twice as long as wide, more than twice 

 as wide as the prothorax, parabolic in apical fourth; sides parallel; impression 

 within the humeri feeble; humeri obliquely truncate at base; disk moderately 

 strongly punctate, with the interspaces finely punctulate. Abdomen finely, 

 densely punctate and pubescent; legs rather slender. Length 6.3 mm.; 

 width 1.9 mm. 



California (Los Angeles Co.). 



The type appears to be a male. Incanus is related to py'u- 

 inosus, but differs in its more obese form and much denser vesti- 

 ture. 



S. Tariipes. — Eather slender and convex, black, the elyti-a shining, with- 

 out any kind of metallic lustre; pubescence rather sparse, not concealing the 

 surface sculpture even on the anterior parts. Head not coarsely but very 

 densely rugoso-punctate, much wider than long, the eyes separated by about 

 twice their own width ; tempora large, rather more prominent than the eyes 

 and three-fourths as long ; antennae very slender, much longer than the head 

 and prothorax together, the basal joint not paler. Prothorax sculptured like 

 the head, not quite as long as wide, strongly rounded at the sides anteriorly, 

 thence deeply sinuate to the base, which is but slightly narrower than the maxi- 

 mum width; apical constriction evident, the lobe short; canaliculation fine, 

 very distinct; lateral impressions distinct but situated on the extreme flanks. 

 Elytra distinctly more than t\\ice as long as wide, barely twice as wide as the 

 prothorax, parabolic in apical fourth; sides parallel; humeri broadly, obliquely 

 rounded at base; punctures modei-ately coarse, deep, separated I)}' about their 

 own widths. Under surface minutely, densely punctate and pubescent. 

 Length 8.0 mm.; width 2.0 mm. 



California (Yreka, Siski^'ou Co.). 



Allied only to indutus, but differing in its larger size, heavier 

 prothorax with much stronger median sulcus, differently colored 

 legs, larger tempora and several other features; it is represented 

 by a single specimen of undetermined sex. 



S. iiicltitus. — Moderately slender and convex, black throughout, the 

 polished lustre of the elytra feebly appearing through the close even vestiture 

 of cinereous tint. Head slightly transverse, densely, not coarsely rugoso-puuc- 

 tate and dull; eyes large, separated by twice their own width on the front; 

 tempora one-half as long as the eye; autennic slender, much longer than the 

 head and prothorax com))ined. Prothorax about as long as wide, sculptured 

 like the head, rounded on the sides anteriorly, sinuate posteriorly, tlie base 

 dilated as usual and but slightly narrower than the anterior parts of the disk; 

 apical constriction fine, entire; canaliculation fine or subobsolete; lateral ini- 

 j[)ressions distinct and extending obliquely on the disk. Elytra twice as wide 



