Memoirs on the coleoptera

CERAMBYCID^E 323
the last joint short, with constricted conical apex, the legs more
slender; thoracic punctures above and beneath extremely fine and
dense. Length (cf, 9) 18.0-22.0 mm.; width 4.8-6.1 mm. North
Carolina (Southern Pines), Manee coquus Linn.
A Similar but brownish-black, more slender in form, the elytral pale
spot always much smaller. Male with the antennae similar but
still more slender, very finely filiform apically, the last joint
scarcely one-half as thick as the third, the appendage feebly
differentiated; prosternal and pronotal punctures as strong but
distinctly separated, the interstices very finely, closely punctate;
abdominal punctures finer and less dense. Female much smaller
than the male, differing as in the same sex of the preceding.
Length (cf, 9) 16.0-21.0 mm.; width 4.5-5.5 mm. New Mexico
(Las Vegas) and Texas filicorne n. subsp.
B Similar in size to coquus but broader and rather less convex,
velvety-black, the elytra fulvous, blackish at the basal margin,
generally shaded with a slightly more obscure fulvous or brownish
tint outlining much the same extended maculation as in the female
of coquus; body much stouter and with relatively larger prothorax
than in filicorne, the antennae nearly similar, though not so
slender; vestiture of the almost similarly very densely punctate
pronotum much sparser. Length (cf, 9) 18.5-24.0 mm.; width
5.5-7.2 mm. Texas fulvipenne Say
C Smaller and much more slender than the preceding, with notably
shorter and very much more slender legs and more slender tarsi,
similarly colored and sculptured, except that the pale fulvousyellow
elytra have each a brown cloud, truncate before the middle,
where it extends almost to the suture, thence receding posteriorly
but attaining the suture at apex; antennae very slender but rather
shorter, the outer joints especially more abbreviated. Length
(cf ) 16.5 mm.; width 4.4 mm. Texas nubifer n. subsp.
D Still smaller, slender, parallel, colored and sculptured throughout
nearly as in fulvipenne; antennae as in nubifer; legs still shorter,
slender, the tarsi notably shorter than in any of the preceding, the
posterior scarcely more than half as long as the tibiae; elytra much
shorter than in nubifer, but little more than twice as long as wide.
Length (cf) 14.8 mm.; width 4.0 mm. New Mexico (Las Vegas).
levipes n. subsp.
Hind tibiae inwardly bent toward tip; appendage of last antennal joint \
in the male more arcuate than usual, with the tip gradually swollen
or subbulbiform. Body larger and stouter than in coquus or any
of the subordinate forms, the corneous processes between the an-
tennae more developed and the tarsi somewhat longer and stouter,
dull smoky-black throughout, the elytra each with a very minute
point of orange tint near the margin behind basal fourth; general
form and sculpture as in coquus, the vestiture shorter, thinner and
as
much less conspicuous; legs longer; prosternal punctures (cf 1
)
in the preceding forms, the antennae as in coquus but still more
elongate and with longer basal joint. Length (cf ) 26.5 mm.; width
7.3 mm. Texas apicatum n. sp.