516 Mr. T. Vernon Wollaston on the 
and sometimes minute, Insects for wlilcli the present genus 
is proposed appear to have been confounded hitherto Avith 
Catolethrus — into Avhich they seem to have been admitted 
as abnormally small members ; and, in accordance with 
this, a very pallid and diminutive one, from Cuba, has 
been communicated by ]\Ir. Pascoe with a very old label 
appended to it, bearing the name "Catoleth-us palmeuSf 
Schon." There is no species, however, of supposed Cato- 
lethrus, so far as I can ascertain, which bears that specific 
title, either in the ' Genera Curcuhonidum' or the Munich 
catalogue ; and I am compelled, therefore, to conclude 
that it is an unpublished one ; yet the fact itself tends 
nevertheless to prove that the exponents of the present 
genus have, as just mentioned, been associated inadver- 
tently Avith the Catolcthri. But in reality, Avhen closely 
inspected, they avIU be seen to belong to even a dift'ereut 
suhfcanih/ from the latter, — their o-jointed funiculus as- 
signing them at once to the Pentarthrides. In addition, 
hoAvever, to this primary distinction, Stc7iotrujns recedes 
from Catolethrus in the Insects which compose it being 
smaller and narroAver ; in their head being much longer, 
thicker, more OA^al and very much more exserted (or ex- 
posed) ; in their rostrum being slenderer stiU, a little 
Avidened toAv^ards the tip, and not appreciably divided from 
the forehead; in their prothorax being more triangular, 
and less constricted behind its apex ; in their scutellum 
being less conspicuous ; in their elytra being minutely 
pubescent at the apex ; In their four hinder legs being 
shorter ; in all their coxa3 being equally separated, or 
apart ; and in the third joint of their feet being uncx- 
panded and simple. 
In point of fact, hoAA'CA^er, Stenotrupis is much nearer 
to Pentnrthrum, — particularly to such members of it as 
, the P. ayigiistissimum, from Japan ; yet its species arc 
still narroAvcr and more depressed ; their head is longer, 
thicker, oval and exserted ; their rostrum (particularly in 
the female sex) Is more elongated and slender, and ajipre- 
ciably Avidened In front; their eyes (instead of being 
rounded and prominent) are completely sunken, ovate 
and more approximated above ; their prothorax is more 
triangular and less constricted behind Its apex ; their 
elytra are minutely pubescent at the tip ; their legs, par- 
ticularly the four posterior ones, are much shorter ; and 
IlioiL' coxro are, all of them, equalbj separated. 
In all probability Stenotrupis Avill be found to have a 
