Coleopterological Notices, VI. 489 



dent apical angles; basal angles very broadly rounded, the base arcuate; apex 

 subtruncate; disk sparsely and very minutely punctate. Elytra scarcely more 

 than one-half longer than wide, nearly one-third wider than prothorax, par- 

 allel and straight at the sides, very obtusely rounded at apex, the humeri only 

 slightly tumid; punctures fine and rather close-set. Abdomen more polished, 

 finely punctulate and finely pubescent, the legs slender. Length 2.0 mm.; 

 width 0.75 mm. 



Arizona (Benson). Mr. Dunn. 



The four specimens before me are perfectly uniform, and are 

 apparently females. The species is quite distinct because of its 

 small size, feeble punctures and very coarse elytral pubescence, 

 as well as in antennal structure. 



23. T. iiidigens n. sp. — Narrow, parallel, strongly convex, highly pol- 

 ished, black, the upper surface with a dull subseneous lustre; legs pale rufo- 

 f erruginous throughout ; antennte dark testaceous, gradually piceous-black be- 

 yond the middle; pubescence cinereous, moderate in length, rather abundant 

 and conspicuous though not very coarse. Head two-thirds as wide as the pro- 

 thorax, polished, finely, sparsely punctate, the frontal impressions small and 

 very feeble; labrum small, rounded; mandibles pale except toward apex; eyes 

 moderately large and not very prominent; antenme one-third longer than the 

 prothorax, rather slender and distinctly serrate internally throughout, the 

 outer three joints but slightly wider, fifth distinctly dilated, tenth slightly 

 transverse and asymmetric, the inner apical angle more prominent, joints with 

 tufts of short erect seta? within. ProfJwra.v three-fifths wider than long, the 

 sides parallel and broadly, strongly arcuate, becoming more convergent and 

 straighter in about apical third; angles obtuse ; apex arcuato-truncate, slightly 

 narrower than the base; disk strongly convex, finely, sparsely punctate. Elytra 

 three-fifths longer than wide, fully one-fourth wider than the prothorax, par- 

 allel, obtuse at apex, the humeral callosities small and feeble; punctures some- 

 what fine but strong, rather close-set. Abdomen finely pubescent, the legs 

 slender. Length 2.1-2.3 mm. ; width 0.75-0.85 mm. 



^o"- 



California (Sta. Clara Co.). 



The description is drawn from the male, and in that sex the 

 fifth ventral is truncate at apex, with the punctures denser in the 

 middle toward base, the fourth with a few stiffer spiniform setifi 

 in a cluster at the middle near the apex, and the genital segment 

 is broadly emarginate and medially impresso-canaliculate as usual. 

 The female scarcely differs at all, being merel}' a little stouter, 

 with a just visibly smaller head. Five specimens. 



24. T. incipient n. sp. — Oblong-oval, dilated behind, feebly convex, 

 rather dull, the elytra shining, black, the elytra with a feeble subieneous 

 lustre; legs rufo-testaceous, the femora picesceut; antennae testaceous, the last 

 three joints feebly dilated and gradually blackish; pubescence rather short and 



