REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 411 
Host.—Picea canadensis (Mill.) B.S. P. 
Type material—Holotype, allotype, and 14 paratypes, U.S.N.M. 
No. 55396. 
The holotype, allotype, and 14 paratypes bear the labels ‘“Hopk. 
U.S. 1170c; Eagle, Alaska; Picea canadensis; W. N. Osgood, Colr.” 
PHLOEOSINUS HOPPINGI Swaine 
Phloeosinus hoppingi Swaine, Can. Ent., vol. 47, p. 364, 1915; Canada Dept. 
Agr., Ent. Branch, Bull. 14, pt. 2, p. 67, 1918.—W. J. CHAMBERLIN, Bark and 
timber beetles of North America, p. 175, 1939. 
Male.—Black, with elytra piceous brown, their declivity reddish 
brown; 1.68 to 2.15 mm. long, about 2.08 times as long as wide. 
Frons wide between eyes, frontal rectangle about 0.77 as long as 
wide, epistomal lobe very short, surface black, moderately shining, 
finely, densely granulate-punctate at sides, roughly punctured, sub- 
granulate above; deeply, not broadly concave, with concavity shining, 
impunctate at center, finely punctured on periphery, with a fine, 
distinctly elevated median carina on lower half; vestiture of fine, 
short hairs, inconspicuous except in profile. Eye less than three 
times as long as wide, less than half divided by a wide emargination. 
Antenna with club less than twice as long as wide, first and second 
sutures subtransverse, third suture oblique. 
Pronotum about 1.18 times as wide as long; sides strongly arcuate 
on posterior two-thirds, constricted just behind very broadly rounded 
front margin; surface black, shining, transversely impressed across 
anterior dorsum; disk with very deep, rather close, moderate-sized 
punctures which are much smaller and denser near anterior margin, 
punctures close, rough, subgranulate at sides; median line weakly 
elevated on posterior third, lateral calli very small or lacking; vesti- 
ture of moderately short, moderately abundant hairs, only slightly 
longer at sides. 
Elytra wider than pronotum, about 1.32 times as long as wide; sides 
subparallel on anterior two-thirds, very broadly rounded behind; 
surface shining; striae deep, moderately wide on disk and sides, 
punctures distinct, moderately small; interspaces wider than striae, 
convex, confusedly, rather closely granulate-punctate on anterior 
portion of disk and sides, granules becoming uniseriate posteriorly; 
vestiture of moderately short, fine, distinct hairs, more abundant on 
posterior half of disk and sides. Declivity with first and third inter- 
spaces strongly convex, with rather close, coarse, actite serrations, 
mesal half of first interspace very finely and densely punctured, third 
interspace finely punctured; second interspace narrower than first, 
slightly narrower than third, nearly flat, shining, finely, moderately 
closely punctured, devoid of serrations; fifth, seventh, and ninth 
