102 Coleoiolerological Notices, III. 



alutaceous ; pubescence coarse, short, pale ochreous but sparse and not very 

 conspicuous. Head rather large, polished, the epistoma flat, the vertex strongly, 

 abruptly, longitudinally convex, and finely, sparsely punctate ; eyes large, 

 separated by one-fifth tlieir width in the male and two-fifths in the female ; 

 antennae rather long and slender, two-fifths as long as the body in both sexes, 

 feebly but distinctly attenuate, joints six to ten strongly obconical, the former 

 a little less, the latter a little more than twice as long as wide, third distinctly 

 longer than the fourth. Prothorax two-thirds wider than long, the apex 

 broadly, strongly arcuate and continuous in curvature with the sides, the 

 latter broadly, strongly arcuate anteriorly, parallel or very feebly convergent 

 and feebly arcuate from the middle to the basal angles, which are slightly 

 obtuse and very narrowly rounded ; base transverse, the sinuation at each 

 side of the middle narrow but strong ; disk convex, not distinctly impressed, 

 finely, rather densely punctate, the punctures round and separated by about 

 their own diameters. Elytra fully three times as long as the prothorax and 

 equal to the disk of the latter in width, gradually ogival at apex from slightly 

 behind the middle ; sides parallel and nearly straight in basal three-fifths ; 

 disk with very fine, feebly impressed series of fine but rather deep, close- set 

 punctures, the intervals finely, confusedly and sparsely punctate. Abdomen 

 finely, sparsely punctate. Legs moderate in length, rather robust, the basal 

 joint of the hind tarsi subequal in length to tlie remainder. Length 6.4-7.5 

 mm. ; width 2.3-2.8 mm. 



Texas (El Paso). Mr. Dunn. 



A distinct species, somewhat resembling rotimdicollis, but much 

 larger, more sparselj' punctate and with larger, more approximate 

 eyes which differ sexually. 



The remarkable porous system of the antenna is extremely devel- 

 oped in the present species. The pores are large and uniformly, 

 rather sparsely distributed over the entire surface of the joints four 

 to eleven ; they are circular, rather deep, quite independent of the 

 hairs or bristles, and are filled with a peculiar white stellated mate- 

 rial, of a spongy-pubescent nature, somewhat similar to the sensi- 

 tive structure filling the pronotal foves in many pselaphides. 



This species approaches the genus Menoeceus, but the thoracic 

 angles are not in the least prolonged posteriorly. 



20 H, intermedins n. sp. — Oblong-oval, moderately convex, blackish- 

 castaneous, the under surface and antennse rufo-fuscous ; legs paler and more 

 flavate ; lustre rather shining, feebly alutaceous ; pubescence moderate in 

 length, pale, somewhat dense, very easily removable. Head very small, 

 rather coarsely and densely punctate, the eyes large, separated by about one- 

 half their width ; antennje fully two-fifths as long as the body, rather robust, 

 feebly attenuate, the intermediate joints strongly obconical and scarcely more 

 than one-half longer than wide, the third slightly longer than the fourth. 



