Memoirs on the coleoptera

BYRRHID.E 27
closely punctate, with a fine impressed median line in posterior half.
Length (c?) 6.3 mm.; width 3.75 mm. Colorado (Leadville),
Wickham canterius n. sp.
Elytra without a closed common crescentiform figure; outline more
elongate 13
13 Form elongate-oval, more produced and pointed posteriorly than
anteriorly, black throughout, the antenna? black with a feeble
piceous tinge; head rather coarsely, very deeply and densely punctate,
with rather coarse pubescence which is slightly variegated;
prothorax distinctly less than half as long as its basal width, the
strongly converging sides somewhat swollen and arcuate basally,
compressed anteriorly, the punctures minute, deep and very dense,
the pubescence longer than usual, very coarse, black, much variegated
by aggregated lines and patches of fulvous, the scutellum with
coarse, dense, almost wholly black hairs; elytra one-half longer than
wide, parallel, the sides feebly arcuate, becoming gradually rounded
and converging in apical two-fifths, the apex rather narrowly parabolic
and somewhat produced; surface extremely densely opaque,
the hairs coarse, black, interspersed plentifully with fulvous, with
a small transverse solid transverse spot of yellow-cinereous hairs
at the middle of the suture and a small one at each side in nearly
the same line, at about lateral third; alternate intervals with denser,
almost wholly black hairs; abdomen strongly and closely but somewhat
finely asperate, the metasternum more coarsely, very densely
and rugosely punctate, the hairs very short but rather coarse, well
separated. Length 6.3 mm.; width 3.5 mm. Idaho (Cceur d'Alene),
Wickham centralis n. sp.
Form nearly similar but less produced and more evenly rounded behind,
smaller in size, almost similar in coloration and general nature of
the variegated vestiture; head small, convex, very densely punctate;
prothorax nearly as in centralis but less compressed apically and with
less minute and not quite so dense sculpture, the vestiture nearly
similar; elytra not more than a third longer than wide, parallel and
feebly arcuate at the sides, the latter evenly and more broadly
rounding behind from well behind the middle; surface less densely
punctate and slightly shining, the vestiture rather shorter, coarse,
black, with interspersed fulvous hairs, the alternate intervals with
shorter black condensations, the fulvous hairs tending to form
several posteriorly arcuate transverse common bands, the solid
yellowish spot at the middle of the suture transversely rhombiform;
abdomen similarly but less densely asperate. Length 5.3 mm.;
width 3.0 mm. Colorado. (Leavenworth Valley, 10000 to nooo
feet elevation), Wickham explicatus n. sp.
14 Elytral striae as usual, fine but continuous 15
Elytral striae very feeble, discontinuous, sometimes much interrupted. . 18
15 Form stout, oblong-parallel or very nearly parallel, very broadly
obtuse behind 16
Form parallel and oblong-elongate, obtusely rounded behind, much
narrower and smaller in size 17
1 6 Deep black throughout, the antennae black, picescent toward base