REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 421 
pronotum regularly, arcuately narrowed from base to lateral con- 
striction; elytral declivity similar to that of male but with notably 
smaller serrations and more abundant scalelike vestiture. 
This species is closely related to swainei. It is similar in size, pro- 
portions, and general habitus. It can, however, be readily separated 
by differences in the frontal concavity and frontal carina, the shape 
and sculpture of the pronotum, the width of the elytral striae, the 
sculpture of the discal interspaces, and the declivital characters. 
Perhaps the most readily grasped difference is in the declivital vesti- 
ture, which in swazne? is entirely hairlike while in granulatus it is 
largely scalelike in both sexes. 
Type locality—Santa Ana Canyon, Orange County, Calif. 
Host.—Cupressus forbesti Jepson. 
Location of types.—Private collection of C. R. Brouck. 
Remarks.—The foregoing description was prepared from a male 
and a female paratype kindly loaned by J. N. Knull. I have seen 
no other specimens of this species. 
PHLOEOSINUS FRONTALIS Bruck 
PLATE 38, FIGURES 3, 3a 
Philoeosinus frontalis Bruck, Can. Ent., vol. 65, p. 55, 1983.—W. J. CHAMBERLIN, 
Bark and timber beetles of North America, p. 173, 1839. 
Male.—Black, with elytra reddish brown to piceous; holotype 2.08 
mi. long, about 1.82 times as long as wide. 
Frons piceous black, brightly shining, moderately broad between 
eyes, frontal rectangle about 0.8 as long as wide, epistomal lobe short; 
deeply, very broadly concave, with concavity extending from above 
eyes to epistomal margin, polished and impunctate in median area, 
finely, closely granulate-punctate at sides, punctured and subgranu- 
late above; median carina on lower half, ending in a small tubercle 
at epistomal margin; vestiture of fine hairs, rather longer than usual 
at sides and above concavity. Eye nearly three times as long as 
wide, more than half divided by a rather wide emargination. An- 
tenna with club slightly less than twice as long as wide, first suture 
slightly, the others progressively more oblique. 
Pronotum about 1.25 times as wide as long, widest through pos- 
terior angles; sides nearly straight, feebly arcuate and feebly con- 
vergent on posterior half, then much more strongly arcuate and 
convergent to lateral constrictions just behind very broadly rounded 
front margin; surface shining, transversely impressed across anterior 
third of dorsum; disk with deep, close, rather rough, moderate-sized 
punctures, finer, closer, and subgranulate near anterior margin, mod- 
erately coarse, dense, subgranulate at sides; median line not elevated; 
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