Coleopterological Notices, VI. 501 



long, -wide, truncate; labium obtusely ogival at apex, bristling with long setae; 

 eyes rather large and convex, not quite attaining the base; antennae broad and 

 compressed, a little longer than the jirothorax, the penultimate joints very 

 strongly transverse. Prothomx two-thirds wider than long, the sides sub- 

 parallel, evenly and moderately arcuate from base to apex, the latter broadly 

 arcuate with a very obsolete entering angle at the middle, the apical angles 

 obtuse and rounded ; basal angles, obtuse but not rounded and minutely, feebly 

 prominent; base arcuate; disk minutely and sparsely punctate, smooth and 

 polished throughout. Elyirn scarcely one- half longer than wide and only just 

 visibly wider than the prothorax, parallel, evenly rounded at apex, rather 

 finely but strongly and closely punctate. Length 2.6-3.2 mm.; widtli 1.15- 

 1.4.') mm. 



Utah. 



The description refers to the male, in which sex the intromit- 

 tent organ is in the form of a flattened cylindrical sheath, ob- 

 liquely truncate at apex, with the inferior surface produced at tip 

 in a fine slender cusp-point. In the female the head is not more 

 than two-thirds as wide as the prothorax. Numerous specimens. 



Several specimens apparenth' not diftering otherwise, have the 

 legs and antenna rufous throughout, the apical joint of the latter 

 blackish. 



49. T. sobriniis n. sp. — Oldong-suboval, moderately convex, polished 

 throughout, the head and pronotum not at all rugose even at the sides, l)lack; 

 legs and antennae rufous, the eleventh joint of the latter dusky; pubescence 

 ochreo-cinereous, moderately long and coarse, dense and intermingled with 

 erect, pale and coarse hairs on the eh^tra, more decumbent and sparser anteri- 

 orly; marginal cilia pale, somewhat long, dense and fimbriform on the protho- 

 rax, scarcely longer but more distant on the elytra. Head three-fifths as wide 

 as the prothorax, convex, minutely and sparsely punctate, the frontal impres- 

 sions very feeble; epistoma rather long and narrower than usual, pale and 

 •coriaceous; labrum almost as long as wide, strongly and nearly evenly rounded 

 and pale at apex ; eyes rather large, slightly prominent, not attaining the base, 

 the tempora behind them opacjue and asperate; antennae somewhat stout, dis- 

 tinctly longer than the ijrothorax, the penultimate joints strongly transverse, 

 fifth not dilated. Prothorax nearly three-fourths wider than long, parallel and 

 very feebly arcuate at the sides to basal third, there more prominently rounded 

 and thence more convergent and nearly straight to the basal angles, which are 

 obtuse but distinct and minutely prominent; apical angles obtuse and broadly 

 rounded; apex and base broadly arcuate; disk minutely and sparsely punctate. 

 Elytra not quite one-half longer than wide, scarcely perceptibly wider than 

 the prothorax, parallel, evenly rounded at apex, finely and closely punctate. 

 Abdomen finely cinereo-pubescent. Length 3.3 mm.; width 1..2-1.3 mm. 



California. 



