82 Coleopterological Notices, III. 



Ii, erythrocnemis Germ. — Ins. Spec; Nov., 1824, p. 164.— Oblong- 

 oval, moderately convex, polished, black above and beneath, the legs and 

 antennae throughout rufous ; pubescence coarse, fulvous, moderate in length, 

 sparse. Head somewhat strongly, very sparsely, unevenly punctate ; eyes 

 large ; antennae slender, about one-half as long as the body, the third joint 

 slightly shorter than the fourth in both sexes. Prothorax one-half wider than 

 long, the sides parallel or feebly convergent from the basal angles to anterior 

 third, then strongly rounded to the apex, the latter truncate and fully two- 

 thirds as wide as the base, the sinuations strong ; disk extremely obsoletely 

 impressed along the middle, not very coarsely, rather evenly and unusually 

 sparsely punctured, the basal foveae almost obsolete. Elytra but slightly wider 

 than the prothorax and about four times as long, the apex acutely ogival ; 

 sides nearly parallel and straight ; disk finely but deeply striate, the strial 

 punctures moderate, rather large and perforate toward base, smaller but still 

 distinct to the apex ; intervals finely, sparsely punctate. Abdomen finely but 

 distinctly, very sparsely punctate. Legs slender. 



Male. — Eyes separated by a narrow isthmus, the inner margins broadly, 

 evenly rounded ; tarsal characters as in punciulata. 



Female. — Eyes separated by one-third to nearly two-fifths their width. 



Length 8.5-9.5 mm. ; width 2.9-3.6 mm. % £ . 



Louisiana. 



The male above noted has the legs piceous-black, and the same 

 condition exists in one of the females. Two other females have the 

 legs normally red throughout, the species is apparently variable 

 therefore in this respect. It may be distinguished from punctulata 

 by its smaller size and much sparser, feebler pronotal punctures, as 

 well as the more approximate eyes of the female, although in the 

 male they do not appear to be quite as approximate as in the cor- 

 responding sex of punctulata. As remarked by Mr. Champion, 

 erythrocnemis is allied to the Mexican Isevicollis, but the latter 

 differs in its longer, more slender form and still sparser, more un- 

 evenly dispersed pronotal punctuation. 



JErytJwocnemis probably inhabits the Mississippi valley as far to 

 the northward as southern Illinois. 



Lr. atra Say. — Journ. Ac. Phil., V, 1827, p. 242; nigrans Melsh : Proc. 

 Ac. Phil., Ill, 1846, p. 60. — Elongate-oval, strongly convex, black throughout, 

 the tarsi alone paler, rufescent, polished throughout, the pubescence moderate 

 in length, coarse, fulvous, rather sparse. Head coarsely, very sparsely, un- 

 evenly punctate, the eyes moderate or small ; antennae slender and filiform. 

 Prothorax rather long, two-fifths wider than long, the apex truncate, fully 

 three-fourths as wide as the base, the latter transverse, with the sinuations 

 broad and deep ; basal angles right ; sides parallel and straight in basal two- 

 thirds, then arcuate and convergent to the apex ; disk unusually convex, not 



