LeConte.] 424. (Feb. 1; 
kindly given me by Dr. D. Sharp. The convex transverse 
ridge of the head causes the elypeal impression to appear 
very deep. 
196. Hypophiocus tenuis, n. sp.—Very slender, cylindrical, con- 
vex, red-brown, shining, antenne and, legs ferruginous. Head sparsely 
punctulate, transverse impression deep. Prothorax one third longer than 
wide, front and hind angles rounded at the extreme tip ; apex not emargi- 
nate, sides very finely margined, base indistinctly margined, surface 
sparsely punctulate. Elytra punctured, with indications of strie behind 
the middle, and near the suture. Pygidium sparsely punctured. Beneath 
sparsely punctulate ; 5th ventral segment more strongly punctured, not im- 
pressed. Length 2.2 mm. ; .09 inch. 
Lowell, Massachusetts ; collected by Mr. Frederick Blanch- 
ard, and kindly given to me by Dr. Horn. 
Table of the Species of HYPOPHL@US. 
Shining, sides of prothorax finely margined 
Shining sides of prothorax strongly margined, head with a faint inter- 
ocular transverse impression ; 5th ventral segment broadly impressed. 
l. substriatus, n. sp. 
Opaque, sides of prothorax very finely margined, head with a transverse 
elevated ridge ; 5th ventral segment with a small, apical tubercle.... 
8. opaculus, n. sp. 
. Entirely glabrous, prothorax not impressed 3. 
Clothed with long, erect hairs, prothorax broadly concave in front ; 5th 
ventral segment not impressed 2. cavus. 
With a few stiff, erect hairs; prothorax not impressed ; 5th ventral not 
impressed ; head with a shallow interocular impression 4. 
. Prothorax emarginate in front, apical angles acute ; 5th ventral slightly 
impressed, pygidium densely punctured 3. parallelus. 
Prothorax not emarginate in front, apical angles rounded ; 5th ventral 
segment slightly impressed ; pygidium densely punctured.......... : 
4. elaber, n. sp. 
Prothorax not emarginate in front, apical angles rounded ; 5th ventral 
segment not impressed, pygidium sparsely punctured..5. tenuis, n. sp. 
. Brown, elytra black, antenne and legs ferruginous 6. thoracicus. 
Uniform red-brown, erect hairs less numerous. ........7. piliger, n. sp. 
127. Strongylium simplicicolle.—Dlack, somewhat shining. 
Head sparsely punctured, vertex longitudinally impressed, epistome thick- 
ened, transversely impressed in front of the clypeal suture, foveate at the 
middle near the anterior margin. Prothorax quadrate, wider than long, 
slightly rounded on the sides in front, angles not rounded, sides not mar- 
gined, disc punctured, inflexed flanks’ sparsely and strongly punctured. 
Elytra with stris more finely punctured than in S. terminatum. Antennse 
—— — — e EE EE RATER HAE LE D - : 
0 re D cL Um m P 4 ۳ و۰۳۳3‎ 
a O IA od dal ill AED SAT AAN oe TNE EZ IR 1 
1878.] 425 
[LeConte. 
with the 2d and 3d joints united equal to the 4th, but not so wide. Length 
10.5 mm.; .42 inch. 
Enterprise; one mutilated specimen. Quite distinet by 
the prothorax being not margined at the sides, and by the 
3d joint of the antenne being much shorter than the 4th, 
which is as broad as the following ones, and subtriangular 
in form. The eyes, as in our other black species, are widely 
separated. | ^ 
Table of the Species of STRONGYLIUM. 
Black; eyes moderate, widely separated 
Greenish-bronze, very coarsely sculptured, prothorax not margined, 
sides slightly toothed ; eyes large, nearly contiguous. ...5. crenatum. 
. Prothorax finely margined at the sides; 3d joint of antennes longer 
than 4th 
Prothorax net margined ; 3d joint of antenne shorter than 4th; epis- 
tome thickened in front 4. simplicicolle, n. sp. 
. Epistoma net thickened in front; last joint of antenne yellowish....4. 
Epistoma thickened in front; strie of elytra very coarsely punctured. . 
3. anthrax Schwarz. 
. Thorax wider than long, feebly channeled 2. terminatum. 
Thorax longer than wide "f 1. tenu'colle. 
128. Xylophilus nubifer, n. sp.—Moderately elongate, black, 
densely and finely punctured, clothed with sub-erect pale pubescence. 
Head brownish in front, eyes large, coarsely granulated, hairy; front 
narrow. Antenne brown, longer than the head and prothorax, somewhat 
thickened externally ; 2d joint thicker and a little shorter than the 3d; 
11th as long as the two preceding wider, obliquely truncate at tip, with the 
apical angle acute. Prothorax wider than long, vaguely impressed. Elytra 
dark piceo-testaceous, with a scutellar cloud, a rounded spot one-fourth 
from the base, and a broad, angulated band about the middle. blackish ; 
this band is extended along the lateral margin almost to the humeral cal- 
lus ; punetures strong, not very dense ; wider than the prothorax base trun- 
cate, sides parallel, rounded behind. Beneath finely, sparsely pubescent; 
palpi, front tibi, and all the tarsi brown-testaceous. Length 2 mm.; .08 
inch. 
Enterprise; one specimen, probably ad. More allied to 
X. ater and fasciatus, than to any other species in my collec- 
tion. 
Table of Species of XYLOPHILUS. 
Eyes hairy p 
Eyes glabrous, widely separated, not oblique ES 
2. Hind angles of head rounded, not prominent; f antenns with the last 
joint elongate, cylindrical. 
PROC. AMER. PHILOS. SOC. XVII. 101. 34. 

