NORTH AMERICAN COLEOPTERA. 
215 
Smaller and less robust; second joint of fnnicle scarcely longer than the 
third ; prothorax not strongly rounded on the sides. 
Clothed above with pubescence only, pitchy black, elytra reddish brown, 
suture darker niiiseiiliis. 
Thinly clothed with broadly oval scales, intermixed with fine ])ubescence, 
yellowish brown, each elytron with two black spots. .coiiciiiiilis. 
Front sulcate. 
Pitchy-black, thighs feebly clavate, posterior toothed !<iiilcif rolls. 
Reddish brown, thighs strongly clavate, i)osterior not toothed. 
se.\$>;iittatns. 
Elytral interspaces alternately wider iiitorstitialis. 
A. sigiiatiis Say. Plate vi, fig. 15. —Robust, oval, ]iiceons ; elytra red, de- 
nuded fascia and scutellar space darker, thinly clothed with whitish pubescence. 
Beak moderately slender, feebly curved, subopaque and rather densely striato- 
punctate; median carina, smooth, distinct. Antennae testaceous, club darker, 
funicle rather stout, outer joints distinctly wider, second joint distinctly longer 
than the third, but not slender; joints 3-7 transversely rounded. Eyes moder- 
ately convex, free behind. Head convex, occiput somewhat shining, front with 
a few remote punctures, finely and indistinctly rugulo.se, frontal puncture dis- 
tinct. Prothorax wider than long, moderately narrowed in front; sides not 
strongly rounded, feebly constricted at the apex and transversely impressed 
behind the anterior margin; surface rather coarsely and densely punctured, 
pubescence condensed along the median line. Elytra less than one-fourth wider 
at the base than the prothorax and about one-half longer than wide, a little 
widened to behind the middle; sides feebly rounded ; strife impressed, punctures 
moderately large, close set and becoming smaller towards the lateral margin ; 
inter.spaces slightly convex, shining with an irregular row of fine punctures; 
the denuded fascia extends from the side to the third interspace, another de- 
nuded spot on the second interspace ; scutellar space and along the suture darker ; 
scutellnm and iutra-humeral spot densely pubescent. Thorax underneath more 
densely clothed with white, squamiform pubescence. Abdomen sparsely i>ubes- 
cent, segments transversely strigose, first and second segments rather long. Legs 
slender, femora feebly clavate, piceous, all armed with a sharp, well-marked 
tooth ; tibife paler, anterior feebly bisinuate, middle and posterior nearly straight ; 
tarsi pale, first joint elongate. Long. 2 — 2.9 mm.; .08 — .12 inch. 
Hub — Atlantic slope. 
Varies considerably in size, and still more so in coloration, from 
pale testaceous to almost pitchy-black ; the latter variation might 
readily be mistaken for the next species, from which it differs by the 
less rounded prothorax and stouter antennal funicle ; the beak also 
is more densely punctured and less curved. The following variety 
is well marked, and deserves special consideration : 
\bir. pallidus. — Testaceous ; head dark piceous ; rostrum and 
pectus infuscate. Prothorax nearly twice as wide as long ; the scn- 
tellar space is scarcely darker. I rvould consider this to be bislff- 
natus Gyll., but the expression — “ thorax latitndine baseos panlo 
