552 Coleopterological Notices, VI. 



three-jointed club, the tenth joint transverse. Prothorax two- 

 fifths wider than long, the sides but 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, Xew Mexico and Arizona. The measure- 

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

 ventral of the male is rather more than one-half longer than the 

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

 fectly unmodified, the pubescence white, normal and decumbent 

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

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

 l)roadly, 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 probably this which was observed by LeConte (1. 

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



13. L.. clavicoi'nis n. sp. — Elongate-oval, strongly convex, moderately 

 shining, black with a feeble a;neous-nietallic lustre; pubescence moderately 

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

 the prothorax, the eyes prominent, surface densely and rugosely sculptured, 

 the punctures polygonally crowded and rather sliallow; antennae black 

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

 verse. Prothnrnx 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 olituse and rounded; apex wide and 

 broadly arcuate ; base broadly and feebly jtedunculate; marginal fringe short 

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

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

 in apical third; punctures moderately large, deep and decidedly spjirse. Leys 

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



Arizona. 



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

 larger or greatly different in form, but with a decidedly smaller 

 head. In the male the fifth ventral is sparsel}" clothed with ordi- 

 nary pubescence throughout, truncate at apex and unmodified. 

 This species is allied to senilis, 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. I.,. iiiiiforiiiiK n. sp. — Elongate, parallel, convex, moderately shin- 

 ing, Itlack witb a dull leneous lustre; legs and antennic piceous-black ; pubes- 



