Genera of the CossonidcB. 543 
squamose covering and smaller stature, its surface is more 
opake and closely sculptured, its rostrum is relatively more 
elongate and slender, its antennae are more medially in- 
serted, its scutellum is much less developed, and its legs 
are setose and proj)ortionately thicker, — with the posterior 
coxEe wider apart, and the third tarsal joint more evidently 
bilobed. 
47. CoPTORHAMPHUS (jiov. gen.). — The present genus 
is founded on two species which have been communicated 
by Mr. Pascoe (obtained, I presume, by Mr. Wallace), — 
one of them from Sarawak in Borneo, and the other from 
Java. Its affinities are extremely difficult to determine ; 
nevertheless I believe it to be a member of the Cossonidce, 
and am inclined to think that the rather inferior position 
of its transverse and greatly depressed eyes, in conjunction 
with the fact that its rostrum is conspicuously divided 
from the forehead, and its surface clothed, or setulose 
(though in one of the representatives very sparingly so), 
will tend to place it at no great distance from Himatium — 
an Indian genus (in the collection of Mr. Fry) from 
Malabar. Yet its rostrum is considerably longer, slenderer, 
and more curved than that of Himatium, and also very 
much more separated from the head, the extreme base 
being far more constricted than what we observe in the 
groups around even Catolethrus ; and its body, instead of 
being pubescent, is more or less scaly and setulose. Cop- 
torhamphus moreover is remarkable for many peculiarities 
which are not indicated in any of the types with which I 
have nevertheless considered it the most natural to asso- 
ciate it. Thus, for instance, its funiculus (which has the 
second joint appreciably elongated) is gradually much in- 
creased in Avidth, causing the club, although large, to be 
by no means abrupt ; its front coxte are nearly, if not in- 
deed altogether, contiguous (even more so than in Phloeo~ 
phagus) ; its femora are armed beneath with an acute 
tooth ; its tibiae are greatly curved, and are furnished to- 
wards their outer apex (more or less evidently), with a 
pectinated tuft of setse ; and its prothorax has a large, 
rounded, sharply-defined, and deep fovea just behind the 
middle of the disk. This last-mentioned character is so 
unusual, that I at first thought it must be the result of 
accident ; but since it is conspicuous in both of the species, 
I cannot but regard it as a generic eccentricity. 
