552 Coleo2oterological Notices^ VI. 



three-jointed club, the tenth joint transA'erse. Prothorax two- 

 fifths wider than long, the sides bnt feebly convergent from near 

 the base to the obtuse apical angles ; apex broadly arcuate. 

 Elytra two-thirds to three-fourths longer than wide, distinctly 

 wider than the prothorax. Length 2.5-3.2 mm.; width 0.8-1.2 mm. 

 Kansas, Colorado, New Mexico and Arizona. The measure- 

 ments appl}' to the extremes of a very large series. The fifth 

 ventral of the male is rather more than one-half long;er than the 

 fourth, truncate at apex, with the surface slighth' flat and per- 

 fectly- unmodified, the pubescence white, normal and decumbent 

 throughout, except the two iisual long black and erect ambula- 

 torial setae at each side near the apex; the genital segment is 

 broadly, feebl}^ bisinuate at apex, flat, with a fine median canali- 

 culation. The dorsal p3'gidium projects behind as seen from be- 

 low, its under surface being clothed with blacker and more erect 

 hairs, and it is probabl}- this which was observed by LeConte (1. 

 c, p. 358), and not the apex of the fifth ventral. 



13. L.. claTicornis n. sp. — Elongate-oval, strongly convex, moderately- 

 shining, black with a feeble seneous-metallic lustre; pubescence moderately 

 long, decumbent, evenly distributed and sparse. Head four-fifths as wide as- 

 the prothorax, the ej^es prominent, surface densely and rugosely sculptured, 

 the punctures polygonally crowded and rather shallow; antenntc l)lack 

 throughout, moderate in length, with a three-jointed club, the tenth joint trans- 

 verse. Prothorax transverse, rather more than one-half wider than long, the 

 sides feebly but distinctly convergent and only slightly arcuate from near the 

 base to the apical angles, which are obtuse and rounded; apex wide and 

 broadly arcuate; base broadly and feebty pedunculate; marginal fringe short 

 and dense; disk broadly, evenly convex. Elytra oblong, two-thirds longer 

 than wide, distinctly wider than the prothorax, parallel, rather acutely ogival 

 in apical third; punctures moderately lai'ge, deep and decidedly sparse. Legs 

 somewhat short, deep black throughout. Length 2.5 mm. ; width 0.8-0.9 mm. 



Arizona. 



The description is takeji from the male, the female being not 

 larger or greatly difl^erent in form, but with a decidedly smaller 

 head. In the male the fifth ventral is sparsely clothed with ordi- 

 nary' pubescence throughout, truncate at apex and unmodified. 

 This species is allied to se^iilis, but differs in its smaller size and 

 relatively shorter form, in its much sparser vestiture and much 

 shorter and more transverse prothorax. Five specimens. 



14. L,. lliiiforinis n. sp. — Elongate, parallel, convex, moderately shin- 

 ing, black with a dull ieneous lustre; legs and antenna; piceous-black ; pubes- 



