Coleopter^olor/ical Notices, VI. 529 



cidedl}- narrower than the base, the latter broadly arcuate ; apical 

 angles obtuse ; disk finely and remotely punctate, not rugose lat- 

 erally except at the immediate edges. Elytra two-thirds longer 

 than wide, scarcel}' at all wider than the prothorax, parallel, 

 rather acutely rounded behind ; disk subexplanate externally at 

 apex, with the apical edges finely serrate ; punctures coarse, deep 

 and sparse. Abdomen thinly but rather coarseh* pubescent- 

 Length 3.1-3.25 mm.; width 1.2-1.3 mm. 



California (Sta. Catalina Island). I have only seen the female 

 of this species, which may be readily recognized hy the dark and 

 «rect vestiture, pale legs, polished surface and coarse elytral 

 punctures. The prothorax is much larger and less transverse 

 than in lucidus or senescens. 



81. T. nigrinus n. sp. — Elongate, siibparallel, sti'ongly convex and pol- 

 ished, black with a scarcely perceptible ijeneous lustre; legs piceous-black, the 

 tarsi paler; anteniiie pale piceo-testaceous, scarcely darker toward tip; pubes- 

 cence blackish, sparse, coarse and suberect, slightly cinereous on the elytral 

 flanks toward base, long and bristling especially anteriorly and along the 

 margins. Head three-fourths as wide as the prothorax, smooth throughout, 

 con^•ex, finely and spaisely punctate, the frontal impressions rather narrow, 

 widely separated and distinct; ejiistoma short; labrum acutely parabolic, 

 gradually pale toward apex; eyes large Imt only moderately prominent; an- 

 tenna- much longer than the prothorax. gradually and perceptibly incra.ssate to- 

 ward tip, the penultimate joints strongly transverse, fifth distinctly dilated. 

 Prothorax but slightly more than one-half wider than long, the sides perfectly 

 parallel and broadly arcuate at the middle, where the disk is widest, 

 straight toward the basal angles which are obtuse and not rounded and dis- 

 tinct; apical angles feebly obtuse and distinct, only slightly blunt; disk 

 finely, sparsely punctate, not rugose near the sides. Elytra three-fifths longer 

 than 'uide, distinctly wider than the prothorax, subparallel and straight at the 

 sides, evenly rounded at apex; humeri tumid, the intra-humeral impression 

 strong; punctures fine but strong and rather sparse. Abdomen somewhat 

 thinly cinereo-pubescent. Length 2.75 mm.; width 1.2 mm. 



California ? 



The male has the inner spur of the two anterior tibia? strongly 

 dilated, and the fifth A-entral one-half longer than the fourth and 

 truncate at tip. The single specimen before me has no indication 

 of locality, but is without much doubt from the region suggested. 



82. T. aenescens Lee. — Proc. Acad. Nat. Sci., Phila., YI, p. 170 (Da- 

 sytes); 1. c, 1866, p. 355 ( Pristoscelis ) . 



Narrow, convex, highly- polished, deep black with a very feeble 

 seneous lustre; legs black, the tibire and tarsi dark rufo-piceous ; 



