Memoirs on the coleoptera

34
MEMOIRS ON THE COLEOPTERA
as a distinct genus. Although very poorly represented
in our
collections, this is probably not so much because of rarity as it is
owing to their obscure coloration, the frequent coating of earthy
matter and the habit of feigning death very persistently. My
collection includes only three specimens, representing three different
species. The six species known may be denned as follows:
Outline regularly oval in form 2
Outline oblong-suboval, more parallel and subrectilinear at the sides
medially 4
2 Elytra with many small distinct spots of condensed silvery scale-like
pubescence. Oval, attenuated before and behind, convex, black,
fusco-squamulate, hispid with erect blackish-piceous bristles, which
are shorter and less numerous than usual; head and prothorax densely
punctate, the latter more coarsely and densely than in echinata;
elytra with fine striae, the sutural posteriorly and the external deep.
Length 2.75 mm. Washington State, Ulke. One specimen. [Syn-
calypta albonotata Lee., Proc. Acad. Phila., 1861, p. 344].
albonotata Lee.
Elytra diffusely variegated with larger, more irregular patches of pale
squamiform decumbent hairs 3
3 Form broadly oval, pointed behind, convex, rather shining, the condensed
patches of paler squamiform pubescence more distinct
posteriorly, black, the erect bristles long, blackish and numerous;
head and prothorax rather coarsely, moderately closely punctate,
the elytra not longer than wide, rather acutely rounded and feebly
lobate at apex, the strife faintly impressed, obsolete and formed of
series of widely spaced punctures except posteriorly and laterally,
converging toward the more impressed sutural posteriorly as in
Simplocaria : surface finely, remotely punctate and shining; under
surface shining, with rather coarse, well spaced, perforate punctures
which are smaller on the duller abdomen. Length 2.3 mm.; width
i. 6 mm. District of Columbia. [Simplocaria stri go s a Mels., Proc.
Acad. Phila., 1844, p. 118 Georgia] strigosa Mels.
Form more elongate, evenly oval, convex, black, dull in lustre, the erect
bristles long, claviform, numerous, seriate in arrangement; head and
prothorax with only moderately coarse, rather close-set punctures;
elytra fully a fifth longer than wide, the sides evenly rounded and
gradually converging posteriorly from near the middle, the apex
rather acute; surface closely, coarsely punctate-scabrous through-
out, the striae fine and distinct to the base, the sutural strong posteriorly,
the others not so directed upon the sutural posteriorly as
in strigosa, the patches of denser squamiform decumbent hairs more
distinct and visible throughout though confused; under surface
duller, the punctures rather fine and close-set. Length 2.4 mm.;
width 1.6 mm. Lake Superior (Marquette and Eagle Harbor).
[Syncalypta echinata Lee., Agassiz, Lake Superior, p. 224].
echinata Lee.