NORTH AMERICAN COLEOPTERA. 
217 
free. Protliorax about oiie-half wider than long, gradually narrowed anteriorly, 
base feebly bisinuate; sides broadly rounded from base to apex, latter feebly 
constricted, transversely impressed in front; surface densely and rather coarsely 
punctured. Elytra about oue-tbiid wider at base than the prothorax; sides 
feebly rounded, gradually narrowed to and separately rounded at the apex, leav- 
ing the ])ygidium freely exposed, latter punctured ; rufous, sutural inters])ace 
darker; strife well impressed, punctures large and rather closely approximate ; 
interspaces slightly convex, smooth, shining with a few small, scattered punc- 
tures; underside with a few scattered ]ninctures, sparsely pubescent. Legs not 
very slender, dark ferruginous, thighs feebly clavate, armed with an acute tooth ; 
tarsi moderately slender. Long 1.8 — 2 mm.; .07- -.08 inch. 
Hab. — Southern, Middle and Western States. 
Varies in coloration ; fresh specimens have the elytra more bright 
red, which in dried specimens changes to a dark brown or even 
blackish color. The denuded spot can generally be recognized by 
its darker color, and being surrounded by a line of pubescence, 
which is liable, however, to abrasion. Why Prof Riley should con- 
sider this species identical with sir/natus (Agric. Report 1885, pp. 
276-282) I cannot understand, for, aside from the difference in length 
of the second joint of funicle which is always evident in fresh and 
can be demonstrated on old specimens that have been relaxed, the 
]>resent species is less robust, thorax less rounded on the sides, and 
suture always darker. According to Dr. John Hamilton it is rarely 
found after the first week in June, whereas signcdus is found always 
during the whole of Summer on various plants and shrubs, while 
the former is generally tidcen on Huckleberry. 
A. coiiciiiniis n. sp.— Oval, reciclish brown, thinly clothed with small, 
white, broadly ovate scales, intermixed with fine pubescence. Beak not very 
slender, slightly widened at apex, feebly curved, indistinctly striate, very finely 
punctured and pubescent. Antennfe slender, first joint of funicle not very 
stout, second and third slightly elonaate. former scarcely longer than the latter, 
outer joints slightly wider. Eyes moderately prominent, posterior margin free. 
Head finely, but not closely punctured, thinly clothed with scales and pubes- 
cence, frontal fovea rounded, marked. Protliorax more than one-half wider 
than long, strongly narrowed in front, liroadly but not strongly constricted at 
the apex and transversely impressed about one-third hehind the ajiical margin ; 
sides not strongly rounded, hind angles ohscurely rounded ; surface very closely 
and rather coarsely punctured, each puncture bearing a short scale-like hair, 
scales somewhat condensed on the sides and along the median line. Elytra oval, 
about one-fourth wider at the base than the prothorax, not wider hehind the 
middle, sides regularly rounded, strise well impressed, punctures large, apiiroxi- 
mate; interspaces convex, slightly roughened, each with a row of fine punctures 
bearing a fine recurved hair, space behind the scutelluni dusky, latter small, 
round; a large, blackish, semi-circular spot behind the middle, with the con- 
cavity outward and extending from the third interspace, deprived of scales; 
TRANS. AM. ENT. SOC. XVIII. 
( 28 ) 
JULY, 1891. 
