Coleopterological Notices^ VI. 52T 



Texas. The above description is from the female, but the male 

 does not greatly differ, simply haA-ingthe head nearly four-fifths as 

 wide as the prothorax. The fifth ventral of the male is broadly 

 sinuato-truncate at apex, the genital segment broadly emarginate, 

 with its surface broadly impresso-canaliculate, and the horizontal 

 under part of the dorsal pygidium is concave, with its anterior 

 margin in the form of a straight transverse ridge. This species 

 may be readih* known b}^ its coarse punctuation and lather 

 elongate prothorax. 



78. T. llicidus n. sp. — Elongate and rather nanow, convex, highly pol- 

 ished, black with a feeble subseneous lustre; legs pale rufo-ferrugiuousthrongh- 

 ont; antennic testaceous, the first joint darker and the outer joints Idackish; 

 pubescence somewhat short, cinereous and very sparse, intermixed with erect 

 black setfe which are conspicuous anteriorly Ijut on the elytra short, very 

 sparse, inclined and inconspicuous on the disk though more distinct laterally, 

 with the marginal cilia in great part cinereous. Head rather small, two-thirds 

 as wide as the prothorax, distinctly rugose toward the sides, sparsely punctate 

 in the middle, the impressions very feeble; epistoma rather long and only 

 moderately transverse; labrum but slightly wider than long, dark, strongly 

 roiinded; eyes moderate in size but quite prominent and distant from the 

 base, the neck feebly constricted; antenna.' slender, distinctly longer than the 

 prothorax, the last three joints abruptly wider, the penultimate transverse, 

 fifth feebly dilated. Prothorax two-thirds wider than long, Avidest at basal 

 two-fifths, where the sides are obtusely but somewhat prominently rounded, 

 feebly convergent and almost straight thence to the apex, more convergent and 

 straight to the basal angles, which are very obtuse but scarcely rounded and 

 distinct; apical angles obtuse and rounded; apex and base subequal, arcuato- 

 truncate; disk finely, sparsely punctate, feebly rugose very narrowly along the 

 lateral edges. Elytra three-fifths longer than wide, only just visildy wider 

 than the prothorax, parallel, the apex evenlj- and not very broadly rounded; 

 disk very coarsely, deejily and not closely punctate, the interspaces highly pol- 

 ished and smooth. J/xZomeH thinly cinereo-pubescent. Length 2.7-3.3 mm.; 

 width 0.8.5-1.2 mm. 



Lower California ; Guadalupe Island. 



The male described above has the fifth ventral broadly arcuato- 

 truncate at apex, the genital segment emarginate as usual 

 throughout the width, with the surface broadly impresso-canali- 

 culate, and the lower surface of the pygidium nearly flat. The fe- 

 male, of which I have but a single specimen from Guadalupe, is 

 much larger than the male and with shorter antennae, but other- 

 wise scarcely differs at all. 



79. T. revei'SUS n. sp. — Elongate, moderately convex, polished, black 

 with a slight grayish lustre; femora pale rufo-ferruginous, the tips blackish 



