REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 459 
each with a row of small serrations; entire declivity clothed with 
numerous, short, moderately stout hairs. Anterior face of meso- 
sternum rather steep. 
Female.—Similar to male in habitus; frons very wide between eyes, 
frontal rectangle about 0.64 as long as wide, convex, with a small 
subcircular or slightly curved, polished impression in median line, 
with a very fine, elevated, often indistinct mediun carma on lower 
half; elytral interspaces densely granulate-punctate and asperate, 
with asperities persistent throughout and becoming uniseriate on 
posterior half of disk; elytral declivity with first and third inter- 
spaces subequally, strongly convex, with rather small serrations, 
second interspace convex, finely and closely punctured, with a row 
of sparse, small teeth; with small asperities on the more lateral inter- 
spaces; entire declivity clothed with numerous, fiat, scalelike hairs 
and a few slender, erect hairs from bases of asperities and serrations. 
The species was described from 2 specimens from Stcckton, Utah. 
The writer has studied more than 40 specimens from Utah, Arizona, 
and New Mexico. The hosts are Juniperus pachyphloe« Torr. and J. 
utahensis (Engelm.) Lemmon. 
PHLOEOSINUS ACICULATUS Bruck 
Phoeosinus aciculatus Bruck, Pan-Pacific Ent., vol. 7, p. 127, 1931—W. J. 
CHAMBERLIN, Bark and timber beetles of North America, p. 174, 1939. 
Male.—Piceous black, with elytra reddish brown to piceous brown; 
2.0-3.0 mm. long, about 1.95 times as long as wide; closely allied to 
utahensis Swaine. 
Frons very wide between eyes, frontal rectangle about 0.62 as long 
as wide, epistomal lobe very short; surface brightly shining, broadly, 
rather shallowly, transversely impressed, somewhat deeper and im- 
punctate in median line, median carina weakly elevated on lower half, 
often nearly lacking, strongest in transverse impression, often inter- 
rupted by granules on epistoma; surface strongly, densely granulate- 
punctate; hairs fine and short, with those on epistomal margin longer. 
Kye three times as long as wide, nearly half divided by a sharp 
V-shaped emargination. Antenna with club nearly twice as long as 
wide, all sutures oblique. 
Pronotum about 1.20 times as wide as long, widest at posterior 
angles; sides regularly arcuate and convergent from base to lateral 
constriction Just behind very broad anterior margin, distinctly im- 
pressed across dorsum; surface brightly shining, finely, deeply, and 
moderately closely punctured (not so closely as in serratus), more 
finely and closely in front, sides subgranulately punctured; median 
Jine only feebly elevated on posterior third, more distinctly elevated 
