184 THE CANADIAN ENTOMOLOGIST 



rounded on the front margin; the asperities of the cephalic half 

 numerous and subconcentric; the caudal half moderately deeply, 

 closely punctured, densely on the sides; the median line smooth, 

 and narrowly carinate from the summit to the base; the lateral 

 oblique depressions connected across the dorsum. 



The elytra are elongate, with the sutural stria' slightly, broadly 

 impressed, a little more widely behind; the other stria^ not im- 

 pressed; the strial punctures very small, moderately close and 

 deep; the interstrial punctures nearly as large and nearly as close 

 as those of the stride, finely granulate behind; the suture elevated 

 except at the base and granulate towards the declivity. The 

 declivity con\e.\ from the side, steep, the sutural stria* deeply 

 widel\- sulcate, wider towards the apex, terminated before the 

 apex of the elytra by the obtuse, narrow, apical projection; shining, 

 very minutely rather sparsely piunctured; with a few minute 

 denticles on each side in the usual position on the crest of the 

 lateral convexity, the 1st on the end of the 2nd interspace, the 

 2nd on the 3rd interspace, and two close together on the 5th and 

 Oth interspaces. The second \isible abdominal sternite is as long 

 as the two following ones united. The male has the front as in 

 the female; it differs only in having the declivital denticles of the 

 2nd, 3rd and 6th interspaces developed into small acute teeth, 

 and the declivital impression apparently deeper thereby. The 

 genitalia have the "trough" a very long spiral band and the pro- 

 cesses (feet) very long and slender, very much as in sparsus. 



This species is of the size of jasperi, but more slender, and is 

 allied to the species of Pityokteines in the small si/e, the elytral 

 punctuation, the poorly developed apical projection of the elytra, 

 the long second visible abdominal sternite, and the characters of 

 the male genitalia. The antennal club, however, although flattened 

 considerably, has the apical segments incompletely telescoped, 

 showing distinctly at the apex from the upper side, the apex of 

 the declivity, too, is distinctly though obtusely margined; and the 

 female lacks the strong tuft of hairs on the front; these characters 

 unite the species rather definitely with the genus Orthotomicus. 



Type series from Rogers' Pass, British Columbia, abundant in 

 Abies lasiocarpa; Edmonton, Alta., abundant in Larix americana. 

 The type is in the collection of the Entomological Branch, Ottawa. 



