432 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
punctate, becoming uniseriately granulate behind, coarser on first, 
third, and alternate interspaces, punctures rather sparse, each with 
a short, rather fine hair; interspaces at sides rugose but less strongly 
granulate. Declivity (pl. 38, fig. 9) less abrupt than in cupressi and 
nitidus, striae impressed, narrower than on disk, with smaller punc- 
tures; first interspace weakly elevated, wider than on disk, rather 
roughly, moderately closely punctured, with only two or three isolated 
serrations; second interspace narrower than first or third, feebly 
convex, with few punctures, devoid of serrations; third interspace 
moderately elevated, moderately strongly serrate; fifth and seventh 
interspaces each with a few serrations; hairs more abundant than on 
disk, most of them short, stout, and numerous, with a few longer 
setae arising from bases of serrations. Mesosternum with anterior 
portion moderately oblique. 
Female—Similar to male in habitus, frons wider between eyes 
than in male, frontal rectangle 0.67 as long as wide; epistomal lobe 
nearly lacking, surface convex, moderately shining, densely granu- 
late-punctate throughout, with a strongly elevaced, sharp median 
carina on lower half; elytral declivity with first and third inter- 
spaces subequally elevated, and subequally rather weakly serrate; 
clothed with numerous, small, short, scalelike, cinereons hairs. 
Type locality —Tulare County, Calif. 
Host.—Sequoia washingtoniana (Wins.) Sudw. 
Location of type-—Canadian National Collection. 
Remarks.—I have studied about 150 specimens, collected mostly 
from the giant sequoia but a few were from Libocedrus decurrens, at 
Yosemite, Wawona, General Grant National Park. Sequoia National 
Park, Mariposa County, Calif. The range seems to be limited to 
that of its principal host. 
PHLOEOSINUS BUCKHORNI, new species 
Male.—Black, shining, with elytra bright reddish brown; 1.9 to 
2.3 mm. long, holotype 2.21 mm. long, about 2.04 times as long as 
wide. 
Frons rather wide between eyes, frontal rectangle about 0.77 as 
long as wide; epistomal lobe short; surface black, shining, finely and 
densely granulate-punctate at sides and above; central area deeply, 
rather narrowly concave, with its central third smooth, impunctate, 
brightly shining, with a fine, sharply elevated, short median carina 
on less than the lower third; hairs at sides and above concavity short, 
fine, and inconspicuous. Eye slightly less than three times as long 
as wide, more than half divided by a U-shaped emargination. An- 
tenna with club less than twice as long as wide, first and second 
sutures distinctly oblique, third suture more strongly oblique and 
sinuate. 
