438 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 92 
closely, very strongly serrate, with serrations near summit notably 
higher; fifth, seventh, and ninth interspaces each with a few rather 
coarse, black serrations; each interspace with a median row of erect 
setae and more numerous short, broad, scalelike hairs. Mesosternum 
nearly flat, with anterior portion slightly oblique. 
Female—Similar in habitus to male; frons wider between eyes 
than in male, frontal rectangle 0.64 as long as wide; nearly flat, 
densely, rugosely granulate-punctate throughout, with a rather faint 
median carina on lower half, often interrupted by granules; elytral- 
declivity with first and third interspaces with strong, black, acute 
serrations, slightly larger midway on declivity; second interspace 
flat, closely, roughly punctured, only slightly narrower than others, 
serrate only at summit; all interspaces moderately closely clothed 
with short, nearly circular, appressed scales, with a few hairlike 
setae. 
The foregoing descriptions were prepared from the female and 
male types, U.S.N.M. No. 7517, and about 20 specimens bearing 
the same data, “Hopk. U. 8S. 1144; Tacubaya, D. F., Mexico; 
Baumann, Colr.” taken from Cupressus. Eight other specimens are 
from (. benthami Endl., Mexico, D. F. The writer has also studied 
two other lots comprising 14 specimens collected from: Cupressus at 
San Juan and Chalco, Mexico, by D. DeLeon. 
PHLOEOSINUS VARIOLATUS Bruck 
Prate 389, Ficures 14, 14a, 15, 15a 
Phloeosinus variolatus Bruck, Pan-Pacific Ent., vol. 7, p. 126, 1931.—W. J. 
CHAMBERLIN, Bark and timber beetles of North America, p. 174, 1939. 
Male—Piceous to black throughout except antennae and _ tarsi; 
3.0 to 4.0 mm. long, slightly less than twice as long as wide; very 
closely related to bawmanni Hopkins. 
Frons wide between eyes, frontal rectangle about 0.74 as long as 
wide, epistoma very short; surface piceous, strongly, densely granu- 
late-punctate; deeply, moderately broadly concave between eyes, 
concavity less closely granulate-punctate than rest of frons; median 
carina on lower half very strongly developed, rather broad and low 
above, but sharply elevated below to form a strong epistomal tooth; 
hairs fine, erect, somewhat longer than usual, unusually abundant on 
epistomal margin. Eye considerably more than three times as long 
as wide, more than half divided by a rather wide emargination. 
Antenna about twice as long as wide, with sutures oblique and 
sinuate. 
Pronotum about 1.16 times as wide as long, widest at posterior 
angles; sides evenly, convergently arcuate, constricted just behind 
