89 



minutely closely granulate punctate and minutely pubescent. The 

 elytra are densely clothed with short, recumbent scale-like hairs, the 

 scales not so dense on the middle portions of the elytra, and with a small 

 more or less shining area on the humeri which is devoid of scales, the striae 

 not evident, rows of punctures distinct; scattered, short, bristle-like hairs 

 slightly longer than the general pubescence on the elytra ; the ventral surface 

 sparsely, faintly punctate and sparsely pubescent. Legs dark; antennse 

 lighter. Front flattened and roughened feebly." 



Described from one specimen collected by me from Ahies lasiocarpa 

 at Rogers' Pass, British Columbia, September 28, 1915. 



Cryphalus balsameus Hopk.; The Subfamily Cryphalinae, U.S. Dept. Agric. 

 Office of Secy., Rept. 99, p. 41. 



Length, 1-5 mm. to 2 mm.; moderately stout; dark-broAvn, subopaque 

 with grey pubescence; the front plano-convex, closely roughly punctured, 

 with rather coarse hairs, strongly transversely impressed, the epistoma 

 with the median line wide, impunctate and slightly elevated in front, 

 forming a coarse granule on the epistomal margin; the antennal funicle 

 4-segmented, 1st longer than the distal three, club nearly twice as long as the 

 funicle, with 3 distinct sutures on each side and an indistinct fourth 

 near the base, the segments oblique and the tip obliquely truncate; the 

 pronotum subtriangular, very broadly rounded and finely margined behind, 

 widest near the caudal angles, then arcuately strongly narrowed to the 

 rather narrowly rounded front, the cephalic margin with two wide adjacent 

 serrations on each side, with one or two smaller lateral serrations, the median 

 line very narrow, the disc strongly convex, the rugose area obscure reddish, 

 delimited behind by an angle of about 90°, the asperities rather coarse, 

 moderately numerous and not concentric, densely finely granulate- 

 punctate on the sides and behind, the pubescence minute behind, coarser 

 on the sides and in front; the elytra as wide as the pronotum and slightly more 

 than twice as long, the sides subparallel for a Httle over half the length 

 then arcuately narrowed to the rather narrowly rounded tip, rather faintly 

 punctate-striate, the striae rather evidently impressed towards the base, 

 the strial punctures close, shallow, moderate in size, bearing minute setae; 

 interspaces densely minutely granulate-punctate, bearing minute grey 

 scale-like pubescence not completely concealing the surface, and a median 

 row of minute but distinct sparse setae slightly coarser than those of the 

 strial punctures, and much coarser and conspicuous towards the lateral 

 margin but not upon the declivity. 



The male is usually smaller than the female, about 1 • 5 mm. long. 



Host tree. — Balsam Fir. 



Distribution. — Eastern Canada and Eastern United States; widely 

 distributed. Not taken by the writer west of the Great Lakes, though 

 it probably occurs throughout the range of its host. 



This species has usually been referred to striatulus Mannh. It is 

 probably Hopkin's balsameus, although the latter was described as " with- 

 out interspacial hairs "; both the species before me and abietis Ratz. of 

 Europe, to which it is very closely allied, have a row of minute hairs on 

 the interspaces, very distinct at the base and on the sides. 



Bostrichus terminalis Mannh., Bull. Mosc. II, 298, 1843, California, is 

 unknown to me. 



It is described as " oblong, closely and deeply punctured, brownish 

 black, with greyish, erect, small hairs, the apex of the thorax and of the 

 elytra reddish, the elytra entire, the antennae and feet rusty red. 



Length, f lin., width | lin. California." 



It has been referred to Cryphalus in literature. 



