204 
WILLIAM G. DIETZ, M. I). 
anterior thigh varies in prominence, and in one specimen before 
me becomes almost obsolete, being replaced by several serratnres on 
the outer margin of the internal, or large tooth. This modification, 
however, could not give rise to confusion with the next species in 
which the antei ior femoral tooth is much larger, and the external 
margin perpendicular. In the majority of specimens examined the 
pygidium is entirely concealed by the elytra. 
.4. puinoriini Linne. Plate vi, fig. 12 . — Less robust than the preceding, 
dark brown or piceous, pubescence fulvous brovvn, intermixed with pale. Beak 
slender, subopaque, feebly striate, a median elevated line, pubescent at the base, 
fnnicle stouter than in nebuloms ; second joint but little longer than the third, 
joints 3-7 transverse. Eyes convex, posterior margin not free. Head short, 
conical, rather coarsely punctured and pubescent, more coarsely so and rather 
concave between the eyes; frontal puncture small, but deep. Prothorax about 
one-half wider than long, narrowed from the base, latter scarcely emarginate 
each side, median lobe almost obsolete ; sides feebly rounded and scarcely con- 
stricted at the apex, a curved impression behind the anterior margin ; surface 
densely punctured, pubescence coarse, hair-like, almost concealing the sculpture, 
brown with a median and lateral vittae paler. Elytra oblong, one-fourth wider 
at the base than the prothorax; humeri rounded, sides feebly so, conjointly 
rounded at the apex, declivity more oblique than in nebuloms, transverselv 
impressed behind the base; striae rather wide, but superficial; ]uinctures large 
and deep, and like tbe striae more or less concealed by the pul)escence, latter 
dense and less coarse than in the preceding species ; a subdenuded spot near the 
base of the third interspace; an oblique fascia behind the middle, extending 
from the seventh to the first interspace; a triangular spot on the declivity, with 
its base on the first interspace ; scutellum, a few small spots on the disc and along 
the margin of the oblique fascia, white. Beneath, thorax rather coarsely, abdo- 
men more finely ])unctured and thinly pubescent, exce])t the prothorax. Legs 
more slender, femora feebly clavate, unidentate, anterior femoral tooth very 
large, acutely triangular, external margin perpendicular; tibim and tarsi as in 
nebulosus. Long. 4 mm. ; .16 inch. 
Hab. — Ohio. 
A female specimen of this common European species was received 
some years ago among specimens of nebuloms, to which it hears a 
superficial resemblance. The less robust form and large, single tooth 
of the anterior thighs, will readily distinguish the present species. 
It is with some hesitancy that I introduce this species as occurring 
in our fauna, based, as it is, on a unique specimen. 
g’ularis Group. 
The species belonging to this group have the anterior thighs bi- 
dentate, the i)ygidium rather freely exposed, and the j)ubescence 
coarse or sparse, without any attemi)t at forming distinct j)atterns. 
