350 THE CANADIAN ENTOMOLOGIST. 



The pronotiim is subtriangular in outline; as wide as the elytra; 

 with the base broadly rounded and finely margined ; the hind angles 

 broadly rounded; the sides sinuate, swollen behind, strongly con- 

 vergent cephalad, and the apex not very narrowly rounded. The 

 apical margin bears two larger recurved points on the median line, 

 with two or three smaller ones on each side. The asperations of 

 the front half of the pronotum are strong, wider and more strongly 

 compressed towards the centre and concentrically arranged. The 

 caudal half of the pronotum is coarsely, densely punctured, with 

 a few very fine punctures intermixed, but is not granulate. The 

 hairs of the pronotum are short, fine, and point towards the summit. 



The scutellum is triangular, distinct, not depressed, closely and 

 coarsely punctate, and surrounded by a narrow, transversely rugose 

 area. 



The elytra are slightly over twice the length of the pronotum, 

 16:7, with the sides parallel as far as the level of the top of the 

 declivity, then gradually rounded and narrowed to the narrowly 

 rounded tip. The elytra are punctured in rows, the striae hardly 

 impressed, with the interspaces confusedly punctured with very 

 fine punctures and with a row of widely separated, slightly larger 

 punctures which bear long, stout bristles. The punctures of the 

 striai rows are round, small at the bottom, large at the surface, 

 deeply impressed individually, so that the surface is somewhat 

 transversely wrinkled. The pubescence is short on the disc, longer 

 and more conspicuous on the sides and declivity. The interspaces 

 bear each a row of longer, stout bristles, with minute, slender setae 

 irregularly placed. The declivity is convex, with the striae dis- 

 tinctly impressed. 



The front coxae are prominent and contiguous. The proster- 

 num is short, with a sharp, slender, intercoxal process. The 

 metasternum is longitudinally sulcate on the median line. The 

 hind coxae are very elongate and sharp-pointed distally. The fore- 

 tibiae are strongly widened distally, the inner margin strongly 

 sinuate, the outer margin straight on the distal half and finely serrate. 



Can. Div. Ent. Col., No. 2087; Weymouth, N.S.; Alnus incana. 



Dryocoetes pubescens, n. sp. — This species is represented in our 

 collection from Colorado. It is allied to affaber Pvlannh., but is 

 distinctly more elongate, with the elytra more densely and coarsely 

 punctured on the declivity. 



The front of the female is densely clothed with long yellow 

 hairs, shorter at the centre; with a smooth median space extending 

 over the vertex. The front in the male is rather roughly granu- 

 late-punctate, thinly clothed with long hairs, with a distinct, smooth 

 median space extending from a moderate pit in the centre of the 

 front caudad to the vertex, very narrow at first and wider behind. 



