REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 433 
Pronotum about 1.18 times as wide as long, widest posteriorly, 
sides nearly straight and feebly converging on posterior third, middle 
third strongly arcuately converging, constricted just behind the 
broadly rounded front margin; surface shining, transversely im- 
pressed opposite anterior constriction; disk deeply, rather closely, 
moderately finely and roughly punctured, not granulate, punctures 
finer and closer in front; sides more strongly roughened, subgranu- 
late; slightly, indefinitely impressed at each side of median line on 
posterior third, median line not definitely elevated, with finer and 
closer punctures; lateral calli poorly developed; pubescence short, 
fine, and inconspicuous. 
Elytra slightly wider than pronotum, about 1.34 times as long as 
wide; sides nearly straight and subparallel on anterior two-thirds, 
moderately broadly rounded behind; surface brightly shining, red- 
dish brown; striae about half as wide as interspaces, impressed, strial 
punctures moderately small, very shallow and usually indistinct, 
much larger and plainer, but still shallow at sides and on declivity; 
interspaces convex, rugose-granulate, with fine punctures and a few 
very fine, short, inconspicuous hairs, granules confused on most of 
disk, but becoming uniseriate posteriorly. Declivity with first, third, 
and alternate interspaces strongly convex, first interspace with mod- 
erately small serrations, those on third larger and more numerous, 
fifth, seventh, and ninth interspaces with a few sharp asperities or 
granules; second interspace less convex, narrowed and nearly ob- 
olete posteriorly; declivital pubescence consisting of short, very fine 
hairs, lacking on second interspace, scanty on others. Anterior face 
of mesosternum slightly sloping. 
Female.—Similar to male in general habitus; frons wider and 
shorter, frontal rectangle about 0.70 as long as wide, densely and 
roughly granulate-punctate, with a broad, rather low carina on 
lower half; elytral declivity with first and third interspaces strongly 
convex, the serrations notably smaller than in male. 
Similar to punctatus but smaller, with more numerous and larger 
hairs on both pronotum and elytra and with smaller strial punctures 
and narrower striae on elytra. 
Type locality—Portland, Oreg. 
Additional locality Pinehurst, Oreg. 
Host.—Thuja plicata D. Don. 
Additional host—Libocedrus decurrens Torrey. 
Type material—Holotype, allotype, and 47 paratypes, U.S.N.M. 
No. 55403. 
Remarks.—The holotype, allotype, and 21 paratypes were collected 
from bark of western red cedar (Thuja plicata), at Portland, Oreg., 
by W. J. Buckhorn; and 26 paratypes were reared from Libocedrus 
decurrens taken at Pinehurst, Oreg., by W. J. Buckhorn. 
