22 
gp:o. h. horn, m. d. 
spicuous feature of tliis species. The two specimens before me are 
precisely alike above and show no traces of pale spots. 
Collected by IMr. D. W. Coquillett at Los Angeles. 
tiiiuesceiis Lee. — Oblong, convex, facies robust, piceous-black, with 
slight feneous surface lustre, sparsely cinereo-pubescent ; antennae either entirely 
piceons, or with joints 2-3 paler; joints subtriangular from 4-10; head convex, 
closely punctate ; thorax as wide as long, narrowed in front, sides rather strongly 
arcuate, sinuate in front of the hind angles, which are acute, slightly divergent, 
with the Carina extending nearly half to apex, disc convex, the median line 
smooth, surface moderately closely punctate, a little roughened near the apex 
only, gradually more finely posteriorly; elytra oval, widest a little behind the 
middle, humeri obtuse, disc convex, striate, strife punctate, intervals slightly 
convex near the base, sparsely punctate, more coarsely in front, the lobe obtuse, 
propleurfe more closely punctate; metasteruum more coarsely punctate; abdo- 
men more finely and closely punctate ; legs rufo-testaceous, the femora piceons. 
Length 3 — 4 mm. ; .12 — .16 inch. 
The prosteriial sutures, while doubled as usual in the group, are 
very narrow, although in the female they are distinctly wider than 
in the male. 
The form of this species is quite that of a diminutive Cardiopho- 
rus. The sculpture of the thorax does not have that marked rough- 
ness seen in the preceding species. The posterior coxal plates are 
not obliterated externally. 
Occurs on the north shore of Lake Superior (LeConte), upper 
Canada (Pettit) and New Mexico (Fuller); White Mountains 
(Blanchard). 
C. musculus Esch. — Oblong, convex, fscies robust, black, shining, surface 
distinctly seneous, sparsely pubescent; anteniife piceous, slightly serrate ; head 
convex, closely, subasperately punctate; thorax broader than long, very little 
narrowed in front, sides strongly arcuate, sinuate near the hind angles, which 
are acute, slightly divergent, and with a very short carina, disc convex, median 
line smooth, surface closely and slightly asperate in front, gradually more finely 
and s])arsely behind ; elytra oval, widest at middle, humeri rounded, disc convex, 
striate, less deeply at sides, strife punctate, intervals slightly convex near the 
base, moderately closely, but finely submuricately punctate, forming transverse 
ridges near the base; prosternum sparsely punctate, a distinct transverse groove 
in front, the lohe rather obtuse, propleurae similarly punctate; metasteruum a 
little more coarsely punctate ; abdomen punctate similarly to the propleuraj, but 
more densely; legs piceous, the tibife and tarsi paler. Length 2.5 — 3 mm.; .10 — 
.12 inch. 
The prosteriial sutures are not at all doubled in this species. The 
carina of the hind angles of the thorax is here very short and in- 
conspicuous, and might readily be passed unobserved. The posterior 
