14 
GEO. H. HORN, M. D. 
€. «lellinibi« n. sp.— Oblong, narrowed posteriorly, rather strongly arched, 
when viewed laterally, convex ; color above ochreous, the thorax ferruginous, 
the head darker, elytra with vague fuscous spaces, often absent, beneath piceous 
or brown, the last ventral segment and prosternal lobe pale; antennje entirely 
pale, the outer joints scarcely longer than wide; head flat, granular; thorax 
disti!ictly longer than wide, sides slightly arcuately narrowed from middle to 
apex, nearly straight posteriorly, angles not divergent, the carina well marked, 
but short, disc convex, the median line finely elevated and smooth ; surface 
closely granular, not forming strig® ; elytra acutely oval, narrowed almost from 
the base, humeri obliquely rounded; disc deeply striate, stri® rather wide, 
coarsely not closely punctate, intervals convex, flatter at apex ; surface submu- 
ricately punctate; prosternum closely and rather roughly punctate, distinctly 
transversely impressed in front, the lobe moderately prominent, but obtuse ; pro- 
pleur® closely punctate; metasternum rather short, coarsely and closely punc- 
tate; abdomen densely submuricately punctate, becoming granulate on the last 
two segments; legs pale yellowish testaceous. Length 4 — 5 ram. ; .16 — .20 inch. 
This species is remarkable in its sharply arched form when viewed 
laterally, as well as by the pale color of the surface. The elytra are 
usually pale ochreous, but some specimens have a fuscous space on 
the declivity of broadly crescentic form extending forward by its 
outer angle parallel with the margin. The carina of the hind angles 
is short, i.e., extending but little in front of the angles themselves, 
while in all the other species of the group it extends nearly or quite 
three-fourths to the ajiex. 
Specimens were sent me many years ago by Mr. F. G. Sanborn, 
collected by him in some numbers at Truro, Mass., a town on the 
Cape Cod peninsula. It should occur in other places on the Atlantic 
coast. 
C. choris Say. — Form moderately elongate, distinctly narrowed posteriorly, 
moderately convex, black, opaque, sparsely clothed with cinereous or golden 
hairs, each elytron with an angulate sub-basal band, which extends to the 
humeri, another transverse posteriorly yellow; anteun® slender, feebly serrate, 
piceotis, the three basal joints pale yellowish testaceous; head feebly convex, 
coarsely and closely granulate; thoi-ax very little longer than wide, sides feebly 
arcuately narrowed in front, behind the middle nearly straight, or with a very 
feeble sinuation in front of hind angles, these divergent, the carina long, ex- 
tending fully three-fourths to apex ; disc convex, a smooth, median, elevated 
line; surface rather coarsely and closely granulate, elytra widest in front of 
middle, thence gradually narrowed to apex, humeri obtuse ; disc deeply striate, 
stri® punctured, intervals convex, flat near apex, roughly, not closely punctate 
and somewhat wrinkled ; prosternum closely punctate, but smoother in front; 
two feeble transverse grooves in front, lobe moderately prominent, obtuse; pro- 
pleur® more densely punctate, but not opsique; nietasternum and abdomen 
densely and moderately coarsely punctate, but somewhat shining; legs pale 
rufo-testaceous, the femora rarely slightly darker. Length 3 — 5 mm.; .12 -.20 
inch. 
