460 CLASSIFICATION OF THE RHYNCHOPHOROUS COLEOPTER 
The beak is short and stout, channelled above, feebly emagi 
at tip, with the antennal grooves narrow and deep, running ob- 
eee below the, eyes, which are transverse and pointed below. 
mandibular scar is small and triangular, not prominent. I 
on not seen the deciduous piece, but suppose it to be small, short 
and pyramidal. The mentum is retracted leaving a deep cavity, 
from the hind margin of which projects the gula in a small emar- 
ginate prominence, much like the mentum-tooth in certain Cara 
bide. The prothorax is broadly rounded at base, with the hind — 
angles nearly rectangular; the postocular lobes are large, and t 
front margin of the prosternum is nearly squarely truncate, 80 
to make a rounded right angle with the outline of the postocular 
lobe. The front coxe are contiguous, the side pieces of the mi 
thorax narrow, distinct ; the ventral segments 1st, 2d and 5th long, 
3d and 4th short; 1st and 2d sutures feebly sinuate, but in reverse 
directions. Legs moderate, tibiæ with a small terminal spur 
the inner side ; tarsi with 3d joint broadly bilobed, claws is 
imate, but not connate. 
A singularly isolated type, seeming to have no relations 
any other in our fauna. 
bas 3 Fe 
CURCULIONIDZ. 
After thus separating the families above defined, there 
a vast complex of genera having the sexual ha of 
series, the antenne geniculate (with rare exceptions), the 
always oval pointed and annulated, uniformly pubescent ; 
mandibles without deciduous piece, usually 3-toothed at ti 
is perpendicular. The mentum is always small or moderate 
not concealing the maxilla, and inserted upon a more OF 
gated gular peduncle. The beak varies in form, as will be 
out under the respective tribes; the antennal grooves ra 
tend to the front extremity of the beak (as in all the m 
of Otiorhynchide), but commence at a greater or less 
fye the tip (except in Sitonini). The front cox® m 
as or separated; the side pieces of the mets 
psn distinct : the pygidium is either covered by the 
The following principal divisions may be established : 3 
A. Antennal grooves extending to the base of the mandibles, £ 
duncle broad, not emarginate ; (Brachyrhyncht). 
