North American Siiecies of Trogopliloeus. 343 



Head one-fourth narrower than the prothorax, rather convex, finely^ 

 feebly, rather densely punctate, shining; prominences short, strong; an- 

 tennaB very slender, as long as the head and prothorax; club very grad- 

 ual and feeble; joints two to four, decreasing uniformly, very rapidly in 

 length, the latter distinctly longer than wide, tenth very slightly 

 longer than wide; eyes moderate, not very prominent, rather more 

 finely faceted than usual; tempora nearly one-half as long, strongly 

 rounded and slightly prominent. Pro^/iorao? widest at anterior two- 

 fifths; sides evenly rounded and coarctate to the apical angles, which 

 are obtuse, not rounded, and very slightly and laterally dentiform when 

 viewed sublaterally, strongly convergent and straight to the base, which 

 is very feebly arcuate, two-thirds as wide as the disk, and distinctly 

 narrower than the apex; the latter truncate; basal angles obtuse ,^ 

 slightly rounded; disk one- third wider than long, feebly convex, finely, 

 rather sparsely punctate in the middle, the surface- becoming more 

 granulose toward the sides, and with the punctures larger but still 

 rather sparse; impressions distinct. Elytra distinctly wider and two- 

 fifths longer than the prothorax, quadrate, each feebly impressed along 

 the suture, somewhat coarsely and densely punctate. Abdomen dis- 

 tinctly narrower than the elytra, parallel; sides very feebly arcuate; 

 border moderately thin and deep; surface feebly convex, shining, 

 minutely granulose, sparsely and very minutely punctate. Legs slen- 

 der. Length, 3.0 mm. 



New York 1. Dr. Hamilton. 



The more broadly, evenly rounded sides of the prothorax 

 anteriorly easily distinguish this and the following species from 

 quadripunctatus Say. This species is further distinguished from 

 the others of tliis immediate part of the genus by its much 

 sparser abdominal punctuation. 



17 T. spretus n. sp. — Rather slender, black ; legs throughout pale 

 rufo-testaceous ; antennae piceous-brown, gradually rufo-testaceous to- 

 ward base ; pubescence short, fine, sparse ; integuments polished. Head 

 rather small, scarcely three-fourths as wide as the prothorax, rather 

 convex, finely, feebly, moderately densely punctate ; prominences 

 strong; antennae distinctly longer than the head and prothorax, slender, 

 very feebly incrassate ; second joint slender, elongate, distinctly longer 

 than the third, the latter subequal to the fourth, nearly twice as long as 

 wide, tenth very slightly longer than wide ; eyes rather large, moder- 

 ately prominent, not very coarsely granulate; tempora strongly rounded 

 and about one-half as long as the eye. Prothorax widest just behind 

 anterior third, where the sides are evenly rounded, and thence coarctate 

 to the apex, and strongly convergent and straight to the base; the latter 

 feebly arcuate, nearly three-fourths as wide as the disk and slightly 



