Memoirs on the coleoptera

TENEBRIONID.E i6i
B In general outline rather similar to the preceding forms but with
the elytra piceous-brown and subopaque, black, anterior parts
and more or less piceous under surface feebly alutaceous in lustre;
head broadly and feebly impressed transversely, sparsely and not
at all coarsely punctate throughout; antennae long (cf) or
much shorter ( 9 ) ; prothorax
as in obovatus throughout, the sinuation
of the converging sides anteriorly still more the sinus at each side of the
perceptible,
base much broader and feebler;
elytra similar in form but more dilated and much duller, confusedly
creased and having each also two or three fine impressed longitudinal
lines formed of connected subsinuous creases, smooth externally,
having suturally small very feeble punctures; humeral
carinule much less abbreviated than in any of the preceding, sharply
elevated, laterally feebly sinuate behind the basal angle; legs
slender, very much longer in the male than in the female. Length
(cf, 9) 19.0-20.5 mm.; width 9.0-10.2 mm. Arizona (Sta. Rita
near the southern M^ts.,
boundary) gliscans n. subsp.
8 Body somewhat shorter and more oblong than usual, convex, aluta-
ceous, black, the elytra dark piceous-brown; head strongly impressed
transversely, with rather sparse and moderately coarse punctures,
becoming very fine basally; antennae with the third joint unusually
long, three to five rapidly and evenly decreasing, the latter one-half
longer than wide; prothorax fully two-fifths wider than long, evenly
convex and extremely minutely, sparsely punctulate, the parallel
sides evenly and rather strongly arcuate, the concave margins narrower
than in any other species, with moderately coarse, decidedly
sparse punctures; basal angles obtuse and almost obliterated, the
adjoining basal sinus subobsolete; elytra barely two-fifths wider
than the prothorax, three-fifths longer than wide, parallel and very
evenly rounded at the sides to the base as in gliscans, more rounding
posteriorly, the apical lobe distinct; humeral carinule very short,
slightly tortuous; surface feebly impressed along the suture, strongly
creased and opaculate, minutely, sparsely punctulate; legs slender.
Length (cf) 18.0 mm.; width 8.7 mm. Unlabeled in the Levette
collection but probably from southern Arizona consuetus n. sp.
Body only moderately inflated and rather convex posteriorly, with the
elytra only feebly flattened medially, feebly shining to rather dull
in lustre, black, the elytra dark piceous-brown; head feebly im-
pressed transversely, the punctures rather strong and close anteriorly,
sparse but distinct and deep elsewhere; prothorax two-fifths wider
than long, the parallel sides moderately rounded, feebly sinuate
anteriorly, the surface strongly alutaceous, with the fine sparse
punctulation very distinct, gradually or not very abruptly becoming
distinctly explanate and coarsely sparsely punctate laterally to
the strongly, abruptly elevated and rather thin punctulate edge;
basal sinus at each side very broad and feeble; elytra nearly threefourths
longer than wide, in outline somewhat as in consuetus but
less flattened and not at all impressed suturally, more or less dull
in lustre, with numerous irregular creases, sometimes decidedly
T. L. Casey, Mem, Col. Ill, Feb. 1912.