Genera of the Cossonidce. 577 
elytra either altogether pale, or else (vv'hich would seem 
to be the normal condition) ornamented with suffused 
blackish markings. The head is naiTow, with the eyes 
consequently less wide apart than what is the case in most 
of these immediately-allied types; and the rostrum is 
somewhat short and robust, though by no means very 
broad, and gently, but appreciably, dilated towards the 
tip — which is, itself, rather straightly truncate. The 
prothorax (which is finely and densely punctulated) is a 
good deal narrowed, and much constricted, in front ; and 
the antennse and legs (the former of which have their club 
shortish, and tolerably abrupt) are comjjarativel}/ slender. 
The intermediate coxte are remotely separated (occasion- 
ing the four hinder ones to be equidistant) ; the femora 
are unusually thin towards their base ; and the tarsi (which 
have the terminal joint ordinary and clavate in the males, 
but subconical in the females) are very conspicuously 
lengthened. 
98. CoNARTHEUS {nov. gen.). — In the conical but not 
abbreviated last joint of its feet (wliich may, or may not, 
be indicated in iDoth sexes, — for I have only a single ex- 
ample of each species from which to judge), no less than 
in the densely punctured anterior portion of its surface, 
and its short, unacuminated club, the present genus 
(which is founded on two species Avhieh were captured by 
Mr. Wallace in the islands of the Malayan archipelago, 
and a third, from Cochin China, which has been com- 
municated by Mr. Fry) is more related, I think, to 
Heterarthrus and Eutormis than it is to the groups 
around Exonotus and Phacegaster — with the latter of 
which, nevertheless, in the proportions of its broad head 
and rostrum, as well as its large size and parallel, cylindric 
body, it almost entirely agrees. It may be known from 
the forms amongst which it seems to me most natural to 
associate it by its elongate, linear outline, black hue, sloping 
(or suh-perpendicular) scutellum ( — a character, however, 
which is less distinctly indicated in the C. vicinus from 
Cochin China), its exceedingly flexuose anterior tibiae, 
and its wide head and rostrum, — the former of which is 
also much exserted, whilst the latter vai-ies in the two 
Malayan examples now before (but which I nevertheless 
believe are both of them females), being in one instance 
perfectly parallel, and in the other not only a little longer 
but appreciably dilated anteriorly. It is possible however 
that I may be mistaken in regarding these two Malayan 
