Of 
Schwarz. ] 368 [Feb. 1, 
with the thorax also shining, but smaller, much shorter, and 
with the basal impression of the thorax much less evident. 
27. Chaetecnema crenulata, n. sp.—Broadly-oval, very convex, 
but little narrowed in front, elytra strongly and suddenly declivous behind, 
broadly rounded at apex ; head and thorax sub-opaque, dark brassy, elytra 
shining, dark seneous ; beneath black, antenne and tibisx testaceous, femora 
black. Head very little prominent, almost vertical, flat in front, very wide 
between the eyes, ocular sulci connected by a strongly curved line ; not pu- 
bescent in front, finely alutaceous, impunctate; eyes large, moderately 
convex, touching the thorax ; antenne slender, last joint infuscate at tip, 
labrum shining, impunctate, denticulate in front. Thorax twice as wide as 
long in the middle, at apex produced in the middle and slightly sinuate be- 
hind the eyes, at the sides almost straight, strongly margined, base broadly 
rounded, finely margined ; front angles rectangular, hind angles obtuse, 
rounded at tip; surface alutaceous, strongly, sparsely and unequally punc- 
tured. Scutellum shining, impunctate. Elytra regularly, coarsely punc- 
tate-striate, strize hardly impressed on the disc, scutellar stria not reaching 
the middle, interstices sub-convex on the disc, convex at the sides, finely 
and obsoletely punctulate. Pleurz of thorax and prosternum smooth, 
shining, the latter not margined between the coxee; mesoternum not visible, 
metasternum short, smooth, shining, strongly narrowed each side and 
emarginated by the middle and hind cox, anteriorly margined by a row 
of coarse punctures, posteriorly each side with an impressed, feebly punc- 
tured line, lateral marginal line impunctate, medial line very fine, side 
pieces opaque, impunctate. First and second ventral segment shining, 
sparsely punctate, the remaining segments less shining, alutaceous, punctu- 
late. Posterior femora strongly incrassate. 
Crotch, Proc. Acad. Nat. Sc. Phila., 1873, 74. 
‘ Sumter County, four specimens. Distinct by the form of 
the body, and by the characters of the underside mentioned 
above. 
28. Cheetocnema quadricollis, n. sp.— Ovate, less convex, 
shining, above seneous, head and thorax often brassy ; antenne and legs 
bright testaceous-red, hind femora more or less infuscate. Head prominent 
oblique, deeply transversely impressed in front, not very wide between 
the eyes, ocular sulci connected by a transverse impression, which is fovei- 
form in the middle ; very finely alutaceous with a few scattered punctures ; 
eyes smaller, convex, labrum with a transverse row of punctures in front ; 
antennee slender, last joint infuscate at tip. Thorax large, less convex, 
twice as wide as long, a little wider in front than at base, on the sides 
slightly rounded and distinctly margined, base rounded, finely margined ; 
front angles moderately deflexed, thickened, hind angles distinct, obtuse ; 
surface more or less distinctly alutaceous, sparsely punctulate. Scutellum 
small, shining, impunctate. Elytra at base evidently wider than the 
thorax, not acuminate at apex, regularly, moderately coarsely punctate- 
