Memoirs on the coleoptera

CERAMBYCID^E 303
elytra more than three times as long as wide, similarly coarsely
and closely punctate but with the punctures more rapidly smaller
and fine apically, the sparse vestiture but feebly and loosely
nucleated; fifth ventral nearly semicircular. Length (9) 12.0
mm.; width 2.5 mm. Canada (Ontario). .. canadensis n. subsp.
B Nearly similar to the preceding in general form but larger, piceousblack,
the elytra brighter testaceous, the legs and antennae dark
red-brown; antennae (9) two-thirds as long as the body, very
slender, finely, sparsely punctured basally, with moderate spines,
the third joint a little longer than the fourth and correspondingly
shorter than the first, which is more densely pubescent; prothorax
(9 ) about as long as wide, the sides parallel but broadly, feebly
angulate at or just behind the middle, dull in lustre, the punctures
much smaller than usual in the female and very dense, with a small
impunctate area behind the centre, the pubescence short, coarse,
closely decumbent, rather abundant, nubilously aggregated toward
the sides and along the median line anteriorly; scutellum moderate;
elytra parallel, more than three times as long as wide, two-fifths
wider than the prothorax, the sinus at the tips as in the preceding
but rather larger, the punctures but very little larger though much
deeper than those of the pronotum, well separated, smaller but
distinct apically; fifth ventral very broadly and feebly arcuate at
apex. Length (9 ) 14.5 mm.; width 3.1 mm. Florida.
densicollis n. subsp.
Male with the densely and finely punctate pronotum even, except a
narrow short impunctate line just behind the centre; elytral apices
as in villosus 8
8 Male with the fifth ventral broadly and evenly rounded. Body very
slender, parallel, pale red-brown, the elytra, legs and antennas rather
paler and testaceous; head with rather small, close punctures and
a flat glabrous impunctate median line posteriorly, becoming finely
impressed anteriorly; antennae (cf ) very slender, not quite as long
as the body, loosely and not coarsely punctate, with small spines,
the third joint slightly longer than the fourth and almost as long as
the first; prothorax slightly wider than long, the sides broadly but
sharply angulate at the middle, thence rather strongly convergent
and straight to the base and less convergent and also perfectly
straight to the apex, which is evidently wider than the base; surface
very finely, densely and evenly though shallowly and irregularly
punctate and dull, the pale yellowish hairs sparse but condensed into
a subeven narrow sublateral line, bending outward slightly, from
the apical margin to behind the middle, this line from the middle to
the base feebly subtumid, more coarsely punctate and again pubescent
at base; elytra parallel, more than three times as long as wide,
only very little wider than the prothorax, the punctures moderately
close and strong, smaller apically, the vestiture rather sparse, feebly
condensed. Length n.o mm.; width 2.4 mm. A single unlabeled
male from the Levette collection defectus n. sp.
Male with the fifth ventral truncate at apex 9
9 Form slender, parallel, the coloration and sculpture nearly as in the