NORTH AMERICAN COLEOPTERA. 
280 
A. !'«i!«*cii»Oiiiiis Gory. — Head and thorax cupreous, elytra black, opaque. 
Anteuufe piceous with brassy lustre, nearly attaining the hind angles of the 
thorax, serrate from the fourth joint; head rather deeply concave from the oc- 
ciput to the clypeus, closely coarsely punctate, slightly pubescent; across the 
base of the clypeus a slight cariua, and above each antennal fossa a rather deep 
groove. Thorax nearly twice as wide as long, sides irregularly arcuate, lateral 
marginal line sinuous, disc irregularly convex ; a broad, vague, lateral depression, 
median line rather broadly concave, slightly interrupted at middle, hind angles 
not carinate ; surface with short, transverse, rather coarse strigse. with granulate 
aspect at the sides; scutellum transversely carinate; elytra with slight post- 
humeral sinuation, behind which there is a slight broadening; apices rounded, 
minutely serrulate, basal depressions moderate, disc slightly flattened; surface 
closely, acutely granulate; body beneath more shining than above, olive-bronze, 
the sides of the sterna cupreous; prosternum rather broad between the coxae, 
parallel, the apex obtuse, the lobe short and obtuse, propleurte coarsely punctate, 
slightly strigose; metasternum coarsely punctate at middle, becoming strigose at 
the sides; abdomen rather coarsely and closely punctate, becoming strigose on 
the sides of the first two segments, the vertical portion of the segments sparsely 
golden pubescent their entire length ; pygidium coarsely punctate, indistinctly 
carinate ; claws similar on all the feet in both .sexes. Length .40 — .,50 inch. ; 10 — 
12.5 mm. 
Male. — Prosternum densely punctate and pubescent along the 
middle ; metasternum convex ; first ventral segment slightly de- 
pre.ssed at middle posteriorly. 
Female. — Prosternum more sparsely punctate and not ])uhescent, 
first ventral segment convex at middle, le.ss closely punctate in the 
male. 
Variations :. — So few specimens have been collected that hut little 
variation has been observed. The thorax is entirely cupreous, the 
median line more golden, and on each side of this is a longitudinal 
space of darker color, which varies in its intensity of color and 
extent. 
Of its habits nothing is known. 
Hab. — Tennessee and Georgia. 
.V. riitirollis Fab. — Black, or blue-black; head and thorax usually bright 
cupreous. Autennse black, serrate from the fourth joint, the serrate joints as 
wide as long; occiput rather deei)ly impressed, the line extending to the base 
of clypeus, occiput .somewhat strigose, front simply punctate. Thorax broader 
than long, apex slightly wider than base, sides regularly arcuate, disc convex, a 
moderately deep, oblique lateral depression ; another, feeble, in front of scutellum ; 
surface, in a general manner, transversely strigose ; hind angles without trace 
of Carina in either sex; margin, viewed laterally, strongly .sinuous ; scutellum 
transversely carinate; elytra slightly sinuate behind the humeri, a little broad- 
ened behind the middle, nearly entirely concealing the sides of the abdomen 
from above, apices separately rounded, distinctly serrulate; disc flat, a basal 
depression on each side; surface closely subgranulate, o])aque, without trace of 
TRANS. AM. ENT. SOC. XVIII. 
(37) 
SEPTEMBER, 1891. 
