Memoirs on the coleoptera

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MEMOIRS ON THE COLEOPTERA
not quite so prominent as the eyes, or ( 9 ) very large, nearly two-
thirds as wide as the prothorax, smoother and less punctate, strongly
swollen at base, the tempora more prominent than the eyes, which
are less convex than in the male, the eyes separated by two-fifths
more than their own width; elytra ( 9 ) nearly three-fifths longer than
wide. Length (cf) 27.0-30.0, (9) 33.0-39.0 mm.; width (cf ) ll.o-
12.0, (9) 15.0-18.0 mm. Northern New York and New England
to District of Columbia. [P. laticollis Drury, 111. II, 1773, Ind.;
I, p. 83; brevicornis Fabr., Syst. El. II, p. 260; LeConte, Journ.
Acad. Phila., 2nd ser., II, p. 109] laticollis Drury
A Similar to laticollis, except that the head (c?) is less developed,
not quite three-fifths as wide as the prothorax, with the eyes
separated by evidently less than their own width, or ( 9 ) not quite
so large, rather more than three-fifths as wide as the prothorax,
the eyes separated by but little more than their own width, the
tempora parallel, nearly straight and equally prominent
as the
eyes, the elytra ( 9 ) notably shorter than in laticollis and not
entirely covering the abdomen, barely one-half longer than wide.
Length (cf) 21.5-25.0, (9) 30.0-38.0 mm.; width (cT) 9.5-10.7,
(9) 14.0-16.0 mm. The length as in all the other species of
Prionus being measured from the apex of the mandibles to the
end of the elytra. Indiana, Levette oblongus n. subsp.
Prothorax much narrower than the elytra, distinctly narrower at base
than at apex; elytra much narrowed from base to apex. General
color and sculpture throughout as in laticollis; head, prothorax and
elytra increasing progressively and almost uniformly in width, the
first two-thirds as wide as the prothorax, the eyes convex, separated
by about two-thirds their width, the tempora much less prominent
and feebly converging to the base; antennae nearly similar but shorter
and apically more slender; prothorax very much smaller, very short,
about three-fourths as wide as the elytra, as in laticollis except that
the sides behind the medial teeth rapidly converge to the base, the
basal angles much more than right but with their apices more acute
and prominent than in laticollis; elytra narrower and tapering, with
more arcuate sides, the apex much less broadly obtuse. Length
(cT) 19.8 mm.; width 8.7 mm. A single specimen of unknown
origin and unindicated locality parvus n. sp.
5 Hind angles of the prothorax wholly obliterated, very broadly and
evenly rounded. Body very stout, convex, the pronotum not much
more so than the elytra, black, slightly picescent posteriorly and
beneath, the abdomen testaceous throughout, head very large,
fully three-fourths as wide as the prothorax, the eyes scarcely at all
convex, the tempora parallel, feebly arcuate, slightly swollen beyond
the eyes, the latter separated by a little less than their own width;
antennae black, very stout basally, rather rapidly tapering and feebly
picescent distally, the last joint a little longer than the preceding,
almost four times as long as wide, widest near tip, its inner face
oblique in more than apical fourth; prothorax a little more than twice
as wide as long, rather strongly but sparsely, irregularly punctate,
the median tooth rather strong, very acute and slightly reflexed;