Memoirs on the coleoptera

CERAMBYCID^: 259
head deeply and closely punctured;
1
antennae (c? ) moderately thick,
filiform, extending about to the middle of the body, coarsely, densely
sculptured, brown, black at base, the second joint two-thirds as long
as the third, which is slightly longer than the fourth, fifth one-half
longer .than the fourth but not thicker, tenth two-fifths longer than
wide, the last rather abruptly narrowed and rapidly pointed in nearly
apicalihalf ; prothorax two-fifths wider than long, slightly swollen at the
sides behind the middle, thence rapidly narrowing to the base which
is much narrower than the apex, unimpressed, rather strongly,
densely, vernacularly rugose, more finely medially; elytra about a
fourth wider than the prothorax, scarcely twice as long as wide,
parallel and straight at the sides, abruptly rounding and very obtuse
at apex, not very finely, extremely densely punctate, the raised lines
as in moestum; fifth ventral shorter than the fourth, rounded. Length
(c?) 9-5 mm.; width 3.0 mm. Massachusetts (Wellesley), Frost.
amputatum n. sp.
6 Color black or piceous-black throughout 7
Color black, the elytra more or less pale brown 8
7 Body rather stout and of somewhat larger size than any of the preceding,
black, feebly shining; head similar but not quite so densely
punctate; antennae (9) black, gradually dark brown distally, moderately
slender and pubescent, extending to about basal fifth
elytra, the fifth joint much longer than the fourth or sixth,
of the
which
is rather longer than the seventh, tenth fully three-fourths longer
than wide; prothorax well developed though distinctly narrower
than the elytra, barely one-half wider than long, the sides subangularly
swollen well behind the middle; surface convex, with a rounded
central impression and two or four which are more lateral and sometimes
obsolete; scutellum finely, densely punctate; elytra ample,
entirely covering the abdomen, parallel, arcuately narrowing in
nearly apical third, finely, very closely but not densely punctate,
the intervals generally subequally and feebly costuliform, shiningunder
surface minutely, not closely punctate, with the hairs rather
longer, coarser
13.0-15.0 mm. ;
and more distinct
width 4.2-5.0 mm.
than usual. Length
Washington State to
(cT, 9)
Nevada
and Utah. [^4. atrum Esch., Bull. Mosc., II, p. 66].. .atrum Esch.
Body much smaller and more slender, rather strongly shining and very
deep black throughout; head more densely punctured medially;
antennae (9) unusually small, slender, but little longer than the
head and prothorax, black throughout, of the usual structure but
with the outer six joints less considerably shorter than the fifth
than in the preceding; prothorax rather less than one-half wider
than long, widest and strongly rounded at the sides at or very near
the middle, and not posterior thereto as in the preceding, feebly
impressed medially and with a very faint impression at each side of
the medial sufficiently evident, the granules unusually large and
conspicuous, the general surface polished; scutellum rounded, shin-
ing, finely and loosely punctate; elytra more than twice as long as
wide but exposing the very narrow and subtruncate last dorsal, not
wider than the prothorax, very minutely and closely but not densely