Coleopterological Notices, IV. 651 



hemi-elliptical in outline, the striae coarse, deep, remotely and dis- 

 tinctly punctate, but not at all crenulate, the intervals rather nar- 

 row, flat, uniseriately and more or less strongly punctate. Pro- 

 sternum broadly, strongly impressed, the impression short, disap- 

 pearing before the coxae, the edges not abruptly defined ; anterior 

 coxae rather large, very narrowly separated. Length 3.0-4.0 mm. ; 

 width 1.6-2.0 mm. 



New York, Pennsylvania, Indiana, Illinois and Florida, the 

 latter locality perhaps doubtful. Nine specimens, exhibiting con- 

 siderable variation, chiefly in regard to the magnitude and density 

 of the punctures. In some specimens the thoracic sculpture is 

 longitudinally and strongly rugulose. 



2 Idiostethus subcalvus Lee. — Proc. Am. Phil. Soc., XVII, p. 622 

 (Zygobaris). 



Oval, strongly convex, shining, black throughout, the antennae, 

 tibiae and tarsi more or less piceous ; pubescence very short and 

 sparse, slightly denser and nearly uniformly distributed beneath, 

 the elytra without dispersed squamules. Head finely, distinctly 

 punctate, the beak very densely, rugulosely so, substriate along the 

 line polished median subcarinate line, evenly, not very strongly 

 arcuate, slender and about as long as the head and prothorax, the 

 antennae inserted at the middle, the first funicular joint robust and 

 scarcely longer than the next two, second nearly as long as the 

 third and fourth, slender, almost three-fourths as long as the first, 

 outer joints stouter ; club small, robust, scarcely longer than the 

 preceding four joints together, with its basal joint constituting one- 

 half of the mass. Prothorax rather small, conical, tubulate at apex, 

 one-half wider than long, convex and finely, very densely, longitu- 

 dinally and confusedly rugulose throughout, without median line. 

 Scutellum small, quadrate, scarcely impressed. Elytra large, ab- 

 ruptly much wider than the prothorax, about two and one-half times 

 longer than the latter, hemi-elliptical, the humeral callus small but 

 unusually prominent; disk with fine but deep and abrupt striae, the 

 intervals somewhat feebly rugulose, nearly three times as wide as 

 the grooves, each with a more or less even series of somewhat dis- 

 tant, moderately small, very feeble punctures, each bearing a short 

 subrecumbent seta, often directed transversely or obliquely. Abdo- 

 men finely, extremely densely punctate and dull. Prosternum 

 tumid, declivous anteriorly, narrowly, strongly impressed along 

 Annals N. Y. Acad. Sci., VI, Nov. 1892.— 43 



