Coleopterological Notices, III. 1G9 



segment is shining, extremely sparsely punctate, broadly very feebly 

 impressed and feebly, narrowly sinuate at apex. Most of the speci- 

 mens have the elytra exactly equal in width to the prothorax, but 

 in one they are distinctly narrower throughout their length. 



A. erytliropilS Kirby. — Fn. Bor. Am., IV, 1837, p. 239 ; fusci/ies Melsh.: 

 Proc. Ac. Phil., Ill, 184(5, p. 60; luteipes, Lee: Sm. Misc. Coll., VI, p. 64.— 

 Elongate-elliptical, strongly convex, grayisli-black, dull, the legs throughout 

 pale luteo-testaceous ; antennae fuscous, paler near the base ; pubescence ex- 

 tremely short and dense, recumbent, cinereous in color and conspicuous. 

 Head and pronotum extremely minutely and densely punctate, the punctures 

 all narrowly separated, the head flat above, finely canaliculate along the 

 middle, the eyes small ; antennae long and filiform. Prothorax and elytra 

 nearly as in femoralis. Abdomen minutely rather densely punctate, the pubes- 

 cence rather more consj)icnoufi than m femoralis. Legs slender, shorter in the 

 female than in the male, and, in the former, much shorter than in the female 

 of femoralis. 



Male. — Eyes separated by nearly one-half more than their own width ; 

 antennae two-thirds as long as the body, the third joint but slightly longer 

 than the second ; anterior tarsi strongly compressed, the joints compactly 

 joined, the two basal very small and subequal, the fifth strongly bent, slightly 

 twisted and deformed, with tlie claws larger ; fifth ventral segment })t)lished, 

 scarcely punctate, deeply, widely, angularly emarginate, the emargination par- 

 tially filled with a depressed membrane ; lobes of the genital armature very 

 long and conspicuous, arcuate, approaching each other and turned downward 

 toward apex, deeply excavated along their exposed surface, corneous. 



Female. — Broader than the male, the prothorax more transverse, the basal 

 angles more prolonged posteriorly ; eyes separated by rather more than twice 

 their width ; antennae one-half as long as the body, the third joint more than 

 twice as long as the second and two-thirds as long as the fourth ; anterior tarsi 

 slender, longer than the tibiae, the basal joint as long as the next two together ; 

 fifth venti-al segment almost impunctate, imi^i-essed or broadly reflexed toward 

 apex, the latter feebly, narrowly sinuate. 



Length 8.2-10.0 mm. ; width 3.0-3.8 mm. 



Canada ; North Carolina ; Indiana. 



In most of the males the third antennal joint is very slightly 

 longer than wide, but in the two North Carolina specimens it is a 

 little longer, fully one-half longer than wide. There is absolutely 

 no difference in the sexual characters or in the minutest details of 

 structure other than that mentioned, and I therefore think that the 

 proposed synonymy cannot but be correct. In one specimen the 

 legs are clouded with a slightly darker tint from the middle of the 

 femora to the apex. 



A few females before mc from New York have the punctures 

 Annals N. Y. Acad. Sci., VI, Nov. 1891.— 12 



