Horn.] 584 [April 19, 
P. hzematodes Fab. (Colydium) Syst. El. II, p. 562; Say (Lyctus) 
Journ. Acad. V, p. 262; Am. Entom. edit. Lec. II. p. 323. 
Moderately elongate, brownish, shining. Head coarsely punctured, front 
on each side impressed. Thorax slightly wider than long, not narrowed 
posteriorly, apex feebly emarginate, base broadly arcuate, the angles 
slightly prominent posteriorly, sides sinuate at middle, margin moderately 
reflexed, disc with a feeble longitudinal impression divided by a slightly 
elevated median line, surface coarsely, deeply and densely punctured. 
Elytra slightly wider than the thorax, base feebly emarginate, disc flat- 
tened, surface deeply and broadly striate, the strise coarsely, deeply and 
closely punctured, intervals very narrow. Body beneath coarsely and 
deeply punctured. Length .14 inch; 3.5 mm. 
Occurs from Pennsylvania to Texas, but not common. 
P. reflexa Say, (Zyctus) Journ. Acad. V, p. 262; Am. Ent. edit. Lec. 
822; nitidus Lec, (Hndectus) New Species, p 69. 
Thorax longer than wide, hind angles distinct but not prominent, sides 
extremely feebly sinuate at middle, straight or even slightly arcuate, 
margin narrowly reflexed, disc coarsely, deeply and densely punctured, 
median line sometimes smooth for a short distance at middle. Length .16 
—.20 inch; 4—5 mm. 
In all other characters this species agrees with hematoces. 
Occurs from Pennsylvania to Georgia. 
PYCNOMERUS Erichs. 
The only real difference between this genus and Penthelispa is, that the 
eleventh joint of the antenne is closely united with the tenth, so that the 
club is solid and apparently one-jointed, glabrous at base, pubescent at tip. 
P. sulcicollis Lec. New Species, 1863, p. 69. 
Moderately elongate, castaneous, shining. Head sparsely punctured, 
front deeply impressed each side. Thorax slightly longer than wide, base 
very little narrower than apex, hind angles rectangular, sides very feebly 
arcuate, margin slightly reflexed, more distinctly in front, disc with two 
broad grooves at middle, which do not attain the apex or base, separated 
by the finely elevated median line, surface sparsely punctate. Elytra very 
little wider than the thorax, disc convex, striate, stris: with coarse, deep, 
elongate punctures. Body beneath coarsely and moderately densely punc- 
tured. Length .14 inch; 5.5 mm. 
This insect has considerable resemblance to P. hematodes. 
Occurs in the Southern States. 
Tribe VI. BOTHRIDERINI. 
Antenne capitate, retractile, at base free, insertion almost frontal, and 
close to the eye. Head deflexed, eyes coarsely granulated, rounded or 
slightly transverse. Anterior cox small, rounded, widely separated, 
