416 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 92 
strongly, arcuately narrowed, strongly constricted just behind broadly 
rounded anterior margin; surface black, shining, transversely im- 
pressed just behind front margin, with deep, close, moderate-sized 
punctures on disk, finer and closer in front, very closely, roughly 
punctured at sides; median line feebly elevated on posterior third 
only, lateral calli lacking; vestiture of short, fine, moderately abun- 
dant hairs. 
Elytra slightly wider than pronotum, about 1.37 times as long as 
wide; sides nearly straight and subparallel on anterior two-thirds, 
rather broadly rounded behind; surface shining, striae deep, of mod- 
erate width, with moderately large punctures; interspaces slightly 
wider than striae on disk and sides, convex, finely and closely granu- 
late-punctate, becoming coarser and uniseriate only near declivity ; 
vestiture of short, moderately fine hairs. Declivity with first, third, 
and alternate interspaces convex, finely, closely punctured, each with 
a uniseriate row of small, blunt, rather sparse serrations; second in- 
terspace nearly flat, narrower than first and third interspaces, finely 
punctured, entirely devoid of serrations, slightly narrowed toward 
apex; vestiture consisting of a few slender hairs from bases of serra- 
tions and numerous spatulate and scalelike hairs over the entire 
declivity. Anterior face of mesosternum steep. 
Female.—Similar to male in size and proportions, with frons wider 
between eyes, frontal rectangle about 0.73 as long as wide, finely, 
densely granulate-punctate throughout, transversely impressed, me- 
dian carina distinct, acutely elevated, pronotum not so strongly con- 
stricted anteriorly, elytral declivity similar to that of male, with 
serrations only slightly smaller and vestiture slightly more abundant. 
Type locality —Strawberry, Calif. 
Host.—Libocedrus decurrens Torr. 
Location of type——Canadian National Collection No, 731. 
Remarks.—The foregoing descriptions were prepared from 4 
paratypes lent by W. J. Chamberlin and 25 specimens bearing iden- 
tical data and all collected by Chamberlin, August 5, 1919. Addi- 
tional specimens are from Hackamore and Siskiyou County, Calif., 
and Pinehurst, Wapinitia, Phoenix, and Wonder, Oreg. All are from 
Libocedrus decurrens. 
PHLOEOSINUS CORONATUS Chapuis 
Phloeosinus coronatus CHAPUIS, Synopsis des Scolytides, p. 39, 1869; Extr. Mem. 
Soe, Roy. Sci. Liége, p. 247, 1873.—BLANprorD, Biol. Centr.-Amer., Coleop., vol. 
4, pt. 6, p. 160, 1897. 
“Ovatus, subopacus, pallide brunneus; capite nigro, subtiliter 
punctato, late depresso, depressione pilis flavis, subfasciculatis cir- 
cumdata; prothorace longitudine plus duplo latiori, summo apice 
