CALANDRIDA—CALANDRIN 2—SPH ENOPHORINI. 149 
as broad as the base, the surface apparently faintly punctate. Elytra 
terminating above the middle of the third abdominal segment, regularly 
striate, the striz rather broad, feeble, and impunctate, the interspaces 
slightly roughened. : 
Length, excluding snout, 9-35™"; elytra, 5°35"; breadth at base of 
elytra, 3:35"; greatest breadth, 4". 
Florissant, Colorado. One specimen, No. 14438. 
ORYCTORHINUS (opvxros, pz/s) gen. noy. 
The general appearance of this insect, with its long metasternum, 
throwiag the insertion of the hind legs well behind the middle of the body, 
makes it clear that it belongs to this family. Its great size, and the exposure 
of the pygidium, bring it into the subfamily Calandrinz, and the shape of 
the mesothoracic and metathoracic epimera requires that it should be referred 
to the Sphenophorini. That it can not be referred to any existing genera 
of this group—at least any regarding which I have been able to obtain 
information—is clear; for though the mesothoracic epimera are externally 
truncate, they are narrowed and rounded at the outer anterior angle, much 
reducing the breadth of the truncation, and, besides, the club of the antennz 
is oval and not wedge-shaped, in both features showing a decided affinity 
to the Calandrini. The antennze are unusually small and slender, the entire 
length of the funicle and club combined being hardly more than twice the 
width of the rostrum, and the scape being no longer than the distance of 
the insertion of the antennie beyond the base of the rostrum. The anterior 
coxze are separated by a little less than half the width of the coxal cavities, 
that is, not very narrowly ; the mesothoracic coxe by a little less than the 
entire width of the coxal cavities ; and the metathoracic coxe by a very 
little more, a feature which appears to be quite exceptional. 
I know of only a single species, from Florissant. 
ORYCTORHINUS TENUIROSTRIS. 
Ripe Mies LO! 
A large species, one of the largest of the Rhynchophora, represented 
by asingle specimen presenting a dorsal or ventral aspect, both surfaces 
