THE CANADIAN ENTOMOLOGIST 365 



of the elytra, and the declivity reddish-brown, the antennae and 

 tarsi yellow. 



The head has the front and vertex shining, moderately, not 

 very closely, rather roughly punctured, rugosely on the sides; 

 with a rather deep transverse arcuate impression and an acute 

 well developed median carina between the impression and the epi- 

 stomal margin; the pubescence short, erect, not conspicuous except 

 the yellow dense epistomal fringe; the eyes deeply emarginate, 

 the antennal club wide, six-tenths as wide as long, with the first 

 two segments subequal in length and each nearly as long as the 

 outer part, the first two sutures nearly transverse, the third strongly 

 oblique, a strongly chitinized septum shown on the dorsal third of 

 the first and second sutures. 



The pronotum is wider than long, 6:5; with the hind margin 

 bisinuate; the sides very strongly arcuate behind, strongly arcuately 

 narrowed in front of the middle and bisinuate behind the broadly 

 rounded front margin, widest near the hind margin; the disc 

 rather coarsely, not densely, punctured, not distinctly granulate; 

 the pubescence short, suberect, forming a conspicuous median line 

 of hairs. 



The elytra are one-third longer than wide, 13:10; the bases 

 arcuate, elevated and serrate; the sides slightly wider at the middle; 

 the striae deep and moderately narrow; the strial punctures moder- 

 ately small but distinct; the interspaces convex, closely coarsely 

 granulate-punctuate, and coarsely uniseriately asperate on the 

 disc near the suture and alternately on the declivity; the 

 first interspace asperate only on the hinder half; the second 

 asperate only on the basal half, more coarsely towards the 

 base; the third asperate throughout, more coarsely towards 

 the base; the fifth and seventh interspaces distinctly asperate on 

 the hinder half; the declivity with the alternate interspaces more 

 strongly convex and moderately, rather closely, acutely serrate; 

 the 1st and 3rd punctured on the mesal side with the row of ser- 

 rations along the outer side; the second interspace on the declivity 

 hardly convex and narrower than the 1st and 3rd ; the 9th carinate 

 behind but hardly serrate; the pubescence fine but distinct, larger 

 on the sides, closer and minutely scale-like on the declivity. 



The male has the front rather coarsely roughly, closely punc- 



