THE CANADIAN ENTOMOLOGIST. 359 



Labels with the male type: I. Perrot, Que. 1912; cT 218; 

 <f type. Labels with the female type: I. Perrot, Que. 1912, 9 218; 

 9 type. Host of type series Pinus resinosa. 



Variations: The pubescence is somewhat abraded on the disc 

 of the elytra in the type; and in some specimens the interstrial 

 punctures of the disc are more numerous; the third discal inter- 

 space is frequently impunctateon the basal two-thirds; the frontal 

 tubercle varies greatly in size, being nearly obsolete in some females; 

 the strial punctures of the elytra vary considerably in size; the 

 length varies from 3.5 mm. to 4.25 mm. 



This species differs from tridens, boreaJis, and interrup us by 

 the characters of the front which lie between the much sparser 

 granulation of one sex of borealis and the extremely dense granula- 

 tion of interriiptus; from borealis in the longer, much more finely 

 punctured pronotum, more sparsely punctured elytral interspaces 

 and distinctly much more strongly developed declivital armature; 

 from interruptiis in the usually much smaller size and more slender 

 form, finer and sparser pronotal punctuation, the much more 

 abrupt declivity with strongly marked sexual variation, and the 

 fewer and smaller granules on the first and second interspaces. 



Dryocoetes sechelti, n. sp. — A very small species, with a 

 subcircular, strongly convex pronotum, coarse elytral punctures 

 and a flattened declivity. Length 2.1 mm.; comparative measure- 

 ments: Pronotum, length 9, width 9; Elytra, length 15, width 9. 



The head is more deeply embedded in the pronotum than 

 usual; with the front convex, rather coarsely, closely granulate- 

 punctate, with erect hairs from the punctures; the median carina 

 narrow but distinctly elevated and shining, from epistoma to 

 vertex; the epistomal fringe dense, longer and bright yellow on 

 the middle third; the eyes wide, coarsely granulate and rather 

 broadly emarginate in front; the antennal club much longer than 

 the funicle; the pedicel as long as the outer four segments; the last 

 segment as wide as the last four are long and the second very 

 narrow; the club nearly as wide as long; with the distal densely 

 pubescent part projecting strongly beyond the truncate tip of the 

 basal corneous part which covers about four-fifths of the under 

 surface, and is bounded distally by a distally convex suture, the 

 distal fifth densely pubescent, the basal corneous part with a few 



