THE CANADIAN ENTOMOLOGIST. 217 



first and second striiie conjointly impressed, much as in lineatus \ first and 

 third interspaces of the declivity convex, forming the lateral margins of 

 the impression \ the stride tend to be impressed on the declivity and the 

 interspaces to be convex, as in li7ieattis ; interspaces of the declivity with 

 distinct, confused, setigerous punctures, making the declivity distinctly 

 though sparsely hairy ; the interstrial punctures often minutely granulate. 



Femora stout, distal lobes well developed ; fore tibia gradually 

 widened ; regularly curved on the hind margin from near the base to the 

 tip, and marked with a submarginal row of teeth distally, with small 

 tubercles towards the base, and with sparse long hairs ; front margin 

 nearly straight, mucronate at the tip, with stout distal-pointing hairs 

 apically ; outer face hairy, and with many sparse conical tubercles shorter 

 than the submarginal teeth. Inner face concave towards the tip and 

 sparsely hairy ; front margin bent inwards and tuberculate near the tip 

 (this shows only from the inner side). First three segments of the tarsus 

 stout, with few long hairs above, and pilose below ; the fourth segment 

 minute. 



The hind tibia is more slender, hind margin slightly curved unti- 

 near the tip which is broadly rounded at the outer angle, with submarginal 

 teeth as in fore-tibia; front margin nearly straight; apical mucro more 

 slender ; without tubercles on the outer face ; inner face with a row of 

 spine like hairs extending from the mucro diagonally to near the hind 

 margin. This row of stout hairs, with the distal part of the hind margifi 

 forms a groove for the reception of the tarsus. First three segments of 

 the tarsus stouter. 



The antenna is reddish-yellow ; scape slender and strongly curved 

 at the base, swollen at the apex, with the dorsal margin rather distinctly 

 bent at the distal fourth, but not strongly angulate as in lineaftis ; sparsely 

 hairy, with longer hairs from the dorsal surface. The funicle four, 

 segmented, first segment large, swollen distally ; second segment 

 pedunculate, widened distally, third and fourth segments wider and 

 shorter, saucer-shaped ; club longer than the funicle, oval, a little more 

 strongly narrowed proximad, densely pubescent on both sides, with an 

 acutely triangular, raised, more strongly chitinized portion at the basel 

 which is sparsely pubescent. The antenna of lineatus (from pine) differs 

 in that the dorsal margin of the scape is sharply angled at the distal fourth; 

 the second segment of the funicle is longer than in betnlcp., with the sides 

 nearly straight, except at the extreme base, and gradually widened ; the 

 club is more elongate than in betulce, with the sides slightly rounded and 



