Memoirs on the coleoptera

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MEMOIRS ox THE COLEOPTERA
to a less degree in aztecus; prothorax but little more than twice as
wide as long, the two anterior teeth small, the basal angles right,
feebly upturned and obtusely subprominent; punctures fine and
sparse, but little larger laterally; base broadly, feebly arcuate medially,
the sublateral sinuses rather deep; scutellum very obtuse;
elytra barely three-fifths longer than wide, about a third wider than
the prothorax, parallel, with but feebly arcuate sides which converge
but very slightly near the broadly obtuse apex; punctures rather
large, deep, impressed and stellate, close-set posteriorly, smaller
and sparser basally, the raised lines fine but distinct; sterna densely
pubescent; abdomen glabrous and yellowish, the apical margin
of all the segments very finely piceous; tarsi slender. A
Length (cf)
34.0 mm.; width 13. 3 mm. New York. [CerambyximbricornislAnn.,
Syst. Nat., ed. XII, p. 622] imbricornis Linn.
-Much smaller and relatively narrower though similar in coloration
and sculpture, the antennae (c?) less elongate, extending but
slightly behind the middle of the elytra; prothorax similar but much
shorter, two and one-half times as wide as long, the hind angles
less blunt but not prominent; elytra more than three-fourths
longer than wide, about a fourth wider than the prothorax, similarly
parallel, the two inner raised lines stronger; tarsi still more
slender, the posterior more lineiform, with the second joint sub-
B
parallel and twice as long as wide. Length (cf) 27.5 mm.; width
10.0 mm. A single male without indication of locality.
mimus n. subsp.
Form nearly as in imbricornis, very parallel though narrower,
similar in color but with coarser and much stronger elytral sculpture;
antennae (cf) extending to apical fourth of the elytra; head
small; prothorax still shorter than in mimus, more nearly three
times as wide as long, the median tooth relatively longer and very
acute, the anterior smaller and only obtusely prominent, the sides
behind the middle tooth more converging to the basal angles,
which are right and not everted though very sharp; lateral sinuses
of the base much shallower than in either of the preceding; elytra
nearly three-fourths longer than wide, more than a fourth wider
than the prothorax, very parallel, rapidly rounding at apex, the
latter very obtusely rounded; punctures notably large, deeply
impressed, rather close but irregular, smaller basally, the surface
more shining than in the two preceding, the two inner raised
lines strong; hind tarsi very slender, the pads beneath as in other
forms of this subgenus, much narrower and less dense than in
Prionus proper, the sulcus relatively wider. Length (c?) 25.0
mm.; width 9.6 mm. North Carolina (Southern Pines), Manee.
brunneus n. subsp.
Eyes much more distant, separated by three-fifths to nearly three-fourths
their own width; head black, rufescent anteriorly, the prothorax dark
testaceous, the elytra much less strongly sculptured and of a pale
tawny-yellow color, sometimes feebly rufescent basally. Body narrow,
small in size, the elytra evidently narrowed from base to apex,
with feebly arcuate sides and not parallel or nearly so as in the three