32 

 Eccoptogaster tsugae, n. sp. 



A small black species; length, 3.4 mm. The female has the front convex, 

 aciculate-punctate and finely hairy, deeply impressed on the middle line behind, 

 strongly transversely impressed on the epistoma. The pronotum is as wide as 

 long, arcuate on the sides, narrowed towards the front, constricted behind the 

 front margin, finely punctured on the disc, more coarsely and densely along the 

 cephalic constriction and on the sides; finely margined about the sides and 

 behind. The elytra have the striae rather .strongly impressed, the punctures 

 rather coarse but not densely placed and somewhat irregular; the interspaces 

 evidently striate with the punctures fine and somewhat irregular on the disc 

 towards the suture; all the punctures moderately coarser and scabrous towards 

 the base. The venter of the abdomen is finel3^ moderately closely punctured, 

 the second segment vertical, convex, with the ventral border finely margined 

 and nearly semicircular, the third and fourth segments as long as the fifth, 

 which is deeply concave and strongly elevated on the caudal margin. The 

 male has the front flat, more strongly and coarsely aciculate-punctate, the elytra 

 hardly scabrous at the base, and the second visible abdominal sternite is some- 

 what more coarsely margined in front. 



Host trees. — -Tsuga mertensiana, Pseudotsuga mucronata. 



Distribution. — Cherry Creek valley, Vernon District, British Columbia; 

 Glacier, B.C., Jasper Park, Alta. (P. mucronata). Probably generally distri- 

 buted. Found in dying bark. 



Eccoptogaster monticolae, n. sp. 



A small black species allied to suhscaher, but constantly much smaller and 

 with distinct elytral and ventral characters. The length is 2 . 8 mm. The elytral 

 punctures are small and variably somewhat scabrous and coarser at the base; 

 the interstrial punctures usually distinctly smaller than those of the strise, which 

 are feebly impressed; the ventral declivity with the second visible sternite 

 convex, shining, vertical, with the caudal fifth slightly oblique, finely sparsely 

 punctured, feebly margined in front or below, with no trace of a ventral spine; 

 the other sternites sericeus, finely punctured, the third and fourth short, the 

 fifth hardly longer than the third and fourth together, and strongly margined 

 behind; the first visible sternite with the median part of the disc strongly 

 convex when viewed from the side. The male has the front flattened and 

 strongly aciculate, the second visible abdominal sternite more strongly margined, 

 and the elytra less scabrous at the base. The series from Douglas fir, is appar- 

 ently the same species. 



Host trees. — Pinus monticola; Pseudotsuga mucronata. 



Distribution. — Arrowhead, B.C., White pine; Creighton valley, British 

 Columbia (Douglas fir). 



