REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 431 
Location of type series —LeConte collection, Museum of Compara- 
tive Zoology, Cambridge, Mass. 
Remarks.—In the LeConte collection the first four specimens are 
marked as types (cotypes). Three of these are from Oregon and 
agree with the short description; the fourth so-called type is from 
Lake Superior and is a different species. Ten additional specimens 
from California are in LeConte’s composite series. Of this number, 
four represent a different, slightly smaller species. 
The United States National Museum collection contains several 
hundred specimens of punctatus taken in Washington, Oregon, and 
California. The hosts are Libocedrus decurrens Torrey, Thuja 
plicata D. Don, and Juniperus occidentalis Hooker. 
PHLOEOSINUS RUBICUNDULUS Swaine 
PLATE 388, FIGURE 9 
Phloeosinus rubicundulus SwAINE, Can. Ent., vol. 56, pp. 144, 145, 1924.—W. J. 
CHAMBERLIN, Bark and timber beetles of North America, p. 176, 1939. 
Male—Piceous to black, with elytra reddish brown to piceous 
brown; 2.5 to 3.42 mm. long, about 2.07 times as long as wide. 
Frons very wide between eyes, frontal rectangle about 0.70 as 
long as wide, epistomal lobe very short; surface piceous, shining, 
densely, moderately finely granulate-punctate at sides, more sparsely 
punctured, not granulate, above; broadly, rather deeply concave in 
central area between eyes, concavity shining, smooth and nearly de- 
void of punctures and granules, median carina poorly developed, 
variable, often appearing as an indefinitely elevated area on epistoma; 
hairs short, fine, and inconspicuous. Eye more than three times as 
long as wide, more than half divided by a rather narrow emargina- 
tion. Antenna with club nearly exactly two times as long as wide, 
first and second sutures oblique, third suture very strongly oblique. 
Pronotum about 1.1 times as wide as long, widest at posterior 
angles; sides nearly straight and feebly converging on posterior 
half, then strongly, arcuately narrowed to the definite constriction 
just behind the broadly rounded anterior margin; surface piceous 
black, brightly shining, with deep punctures of moderate size, notably 
sparser than usual as in punctatus; sides more closely and roughly 
punctured, subgranulate; lateral calli small, inconspicuous; median 
line faint, indefinitely impressed at each side near posterior border; 
hairs fine, short on disk, longer at sides. 
Elytra wider than pronotum, about 1.41 times as long as wide; 
sides nearly straight and subparallel on anterior two-thirds, broadly 
rounded behind; surface shining; striae deeply impressed, much nar- 
rower than interspaces, strial punctures of moderate size, shallow, 
rather closely spaced, interspaces wide and convex, rugose-granulate- 
