REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 457 
1897.—SmitTH, Catalogue of the insects of New Jersey, p. 365, 1900.—F att, 
and COocKERELL, Trans. Amer. Ent. Soc., vol. 38, p. 218, 1900.—Swainr, New 
York State Mus, Bull. 134, p. 180, 1909; Canada Dept. Agr., Ent. Branch, 
Bull. 14, pt. 2, p. 70, 1918—W. J. CHampBrertin, Bark and timber beetles of 
North Amer., pp. 170, 171, 1939. 
Male (type).—Black, with elytra dark piceous brown; 3.74 mm. 
long, about 2.05 times as long as wide (but type specimen distorted 
from old pinning). 
Frons rather wide between eyes; surface piceous, closely, sub- 
longitudinally rugose-granulate at sides and above; rather weakly, 
transversely concave (or broadly transversely impressed), with a 
rather distinct elevated median carina. Eye about three times as 
long as wide, more than half divided by a V-shaped emargination. 
Antenna elongate, yellowish brown, sericeous, about twice as long 
as wide, with all sutures oblique. 
Pronotum widest behind middle, sides arcuate, subinflated behind, 
strongly constricted just behind the broadly rounded anterior mar- 
gin, and distinctly impressed across dorsum; surface piceous black, 
moderately shining, deeply, very closely, moderately coarsely 
punctured, more finely and densely in front; median line indistinct, 
with punctures as on rest of disk; lateral calli small; vestiture 
inconspicuous. 
Elytra wider than pronotum, about 1.32 times as long as wide; 
sides subparallel, broadly rounded behind; surface shining, piceous 
brown, striae of moderate width, deep, with moderate-sized punc- 
tures; interspaces moderately wide, rugose-granulate-punctate with 
moderately short, decumbent, testaceous hairs. Declivity with first 
interspace convex, with large, black, closely placed serrations on 
lateral half, surface punctured, rugose; second interspace narrowed 
posteriorly, shining, nearly fiat, closely, rugosely punctate, with a 
single tubercle near apex; third interspace elevated, with a row of 
black serrations slightly smaller than in first; fifth, seventh, and 
ninth interspaces each with a few serrations; vestiture consisting of 
hairs and rather narrow scales, neither very numerous. 
The foregoing description was made from the unique type in the 
LeConte collection, Museum of Comparative Zoology, Harvard Uni- 
versity, partly from my own notes made about 10 years ago and in part 
from notes recently made by P. J. Darlington, Jr., in comparing 
specimens sent to him with the type of Phlocosinus serratus. 
In his original mention of the species LeConte records it from 
New York. The only locality label on the specimen is a pink disk 
indicating that it came from the “Middle States.” Although much 
collecting has been done in this area since the time of LeCente, no 
specimen at all closely related to serratus has ever been taken. How- 
