Memoirs on the coleoptera

358
MEMOIRS ON THE COLEOPTERA
represented only by a fine subsutural dot and the apices not at all
yellow. Length (cT) 22.5, (9) 23.5 mm.; width (cf) 7-3, (9) 7-5
mm. New Mexico (Fort Wingate) and Colorado, .biformis n. sp.
Female nearly as in biformis but blacker, the elytra much deeper black
and more velvety, the head between the antennae more elevated and
more deeply, longitudinally sulcate, the last antennal joint, not
acutely oval and as long as the preceding as in biformis, but obtuse
and much shorter than the tenth, the prothorax of similar form and
sculpture but less transverse and smaller, much narrower than the
elytra, the latter of nearly similar form and ornamentation, except
that the ante-apical fascia is broken near the suture and the solid
apical yellow area replaced by a fine transverse fascia near the tip,
the apices not at all truncate but with the sutural angle evenly and
broadly rounded; under surface with the prosternum more evenly
punctate and less rugose, the denser apical hairs of the lateral part
of the ventral segments paler yellowish-cinereous; legs nearly similar.
Length ( 9 ) 22.0 mm. width ; 7.2 mm. New Mexico (Jemez Springs).
muliebris n. sp.
Female smaller, narrower, more parallel and less convex than in any of
the preceding, dull black, the elytra piceous-brown; head nearly as
in biformis, the antennae paler, pale rufous, but little more than twofifths
as long as the body, with the outer joints still shorter, the tenth
but very slightly longer than wide, the eleventh oval and a little
longer; prothorax finely, evenly and densely sculptured, more globular,
only between a fourth and fifth wider than long, otherwise
similar, distinctly narrower than the elytra, the latter almost parallel,
rather more than twice as long as wide, the sutural margin rounding
outwardly at apex to meet the rounding sides in a very blunt angle;
ornamentation nearly as in biformis, except that all the spots are
smaller, and that the subbasal fascia is narrower and more basal
than in any other, being on the basal convex declivity; the ante-apical
is broken at the suture as in muliebris; legs and under surface nearly
similar. Male more slender, the prothorax more strongly rounded
at the sides, the nubilous feeble marking of the elytra nearly as in
the male of biformis, the antennal joints shorter than in that species.
Length (c?, 9) 18.0-19.5 mm.; width 5.6-5.8 mm. Colorado.
coloradensis n. sp.
4 Form broader, more oblong and subparallel, the elytra more depressed,
the color throughout deep black, the head and prothorax nearly as
in biformis; prothorax (c? ) as wide as the elytral base, strongly con-
vex, not densely, confusedly rugulose as in all the preceding species,
but with small and irregular, very close-set but definite punctures
and more shining interspaces, the abruptly outlined arcuate sublateral
crescent somewhat depressed and very coarsely punctate;
elytra without ornamentation in the male, the apices minutely and
obliquely truncate at the sutural angles; under surface less densely
punctate and pubescent and more shining; vestiture throughout very
short, only moderately dense, dusky and barely visible. (cf)
Length
22. o mm.; width 7.1 mm. California lorquini Buq.