2 



of the importance of scientific invesiigations. The specimens were 

 kindly given me by Mr. Reineckc. 



Tliis species is more nearly related to C. humeralis than to the 

 others in my collection, l)ut differs from it as from them, by the 

 very finely punctnred elytra. A table of the differences between 

 the species will be found in my Xew Species of Coleoptera (Smith- 

 sonian 8 vo.) p. 169. 



In the smaller specimen, there is a, faint and perhaps illusive 

 iippciirance of a lateral prothor:vcic tubercle, which is produced 

 mainly by the projection of hairs. 



LAEMOPHLOEUS, Lap. 



L. convexulus. Lee. Eobust, in form like L. adu.stun, Lcc, slightly 

 convex, piceous, finely and s})arsely pubescent. Head together with 

 the eyes, as wide as the prothorax, eyes small, convex ; anterior 

 margin of front slightly emarginate, surface finely punctured, front 

 with a broad vague transverse impression. Prothorax very trans- 

 verse, narrowed behind, finely punctured ; sides finely margined, 

 rounded in front, with a small tooth near the front angles, which 

 are subacute, oblicjue behind; hind angles obtuse, with a small 

 prominent tooth or cusp at their tips ; the discoidal line each side 

 is well marked and nearly parallel with the side margin. Elytra not 

 wider than the prothorax, sutural stria impressed ; the other striae 

 ivre re})resented by rows of punctures, and the interspaces are 

 sparsely punctured. Under surface shining, sparsely punctured. 

 Length 2 — 2.7 mms. 



,fj . Antennae slender, nearly as long as the body; mandibles long 

 and slender, not toothed near the tip, 



? . Antennae about half as long as the body, three (niter joints 

 slightly thicker ; mandibles long, less slender, with an acute tooth 

 near the ti]). 



Buffalo, N. Y., and Port Huron, Mich. Collected l)y Mr. Eeinecke 

 iind by Messrs. Hubbard and ScliAvarz. I have mentioned this 

 species by name in the List of Michigan Coleoptera (Proc. Am. Phil. 

 Soc. 1878, G82. H- differs from L. adudus chiefly by the dark color, 

 denser punctuation and more distinct pubescence, but h;!s no 

 resemblance to any other species in our fauna. 



TROGLODERUS, n. g. [Tenebrioxidae.] 



Belongs to the tribe Scaurim. Body elongate, rough, opake. 

 Head densely cribrate, slightly prolonged behind the eyes, Avhich 



