m. 
309 [Sehw arz, 
with some scattered punctures, clypeus alutaceous, minutely and sparsely 
punctulate. Thorax in front but little wider than long, at the sides less 
rounded and less narrowed behind than in A. lucidula ; hind angles indi- 
cated by an interruption of the reflexed margin, transversely rugulose and 
sparsely punctulate, near the front margin more evidently punctate, punc- 
tures sometimes confluent in longitudinal rugosities. Elytra of a dark 
coppery color with an oblong yellow spot at the base of the 6th interval, 
finely but deeply striate, strie distinctly punctulate, interstices flat, aluta- 
ceous, sparsely and obsoletely punctured. Length 9.25 mm.; .37 inch. 
Of the same size as A. lucidula, but narrower and with a 
different form of the thorax; the sculpture of head and 
thorax is finer, the elytra are darker colored with the scat- 
tered punctures on the interstices less evident. 
Enterprise; three specimens, apparently females. 
CYCLONOTU M. 
The four North American species before me may be dis- 
tinguished by the following table: 
I. Antenne with more or less solid club; prosternum carinated in front, 
prolonged behind between the coxe and almost reaching the meso- 
sternum ; first ventral segment carinate; elytra with distinctly im- 
pressed sutural striz at apex : 
Antennal club solid, prosternum very short in front of the coxs: 
metasternum in the middle slightly but abruptly raised in an ob- 
long shining plate, which is narrowed in front. Size small, rows 
of punctures on the elytra very obsolete 0. palmarum. 
Antennal club less solid, prosternum moderately long in front of 
the cox&, metasternum with an oblong, not elevated, not pubes- 
cent, opaque spot. Size large, elytra with regular rows of punc- 
fures... E nn. Dach, 
II. Antenne with a loosely jointed club of three joints, prosternum feebly 
prolonged between the coxe; metasternum strongly longitudinally 
carinated, carina shining, more or less punctulate, but not sharply limited 
laterally ; first ventral segment not carinated ; elytra without sutural 
stria. | 
Larger, rounded-oval, elytra moderately densely punctulate, legs pice- 
ous black, tibie distinctly punctulate ......... <.. o o estriatum. 
Smaller, rounded, almost hemispherical, elytra less densely punctu- 
late, legs stouter, piceous red, tibiæ smooth. ........ semiglobosum. 
3. Cyclonotum palmarum, n. sp.—Rounded-oval, convex, 
above black, shining, anterior part of head, sides of thorax and tip of ely - 
tra sometimes red, beneath red, metasternum darker in the middle, anten- 
næ, mouth and legs bright rufo-testaceous. Head very finely aciculate and 

