Genera of the Cossonidce. 535 
36. Styphloderes {nov. gen. ; Cotaster, Mots., 
pars). — In its exceedingly abbreviated metasternum, 
obsolete scutellum, and elongated antenna3 (whicli are 
implanted considerably before the middle of the rostrum), 
as well as in its more or less pallid hue and subellijDtical 
elytra, Styphlodercs has much manifestly in common with 
Raymondionymiis and Alaocyha, of the preceding sub- 
family ; nevertheless it differs very essentially from them 
both, not only in its much larger size, and in its funiculus 
being 7- (instead of 6-) articulate, but likewise in its eyes 
being developed, and in the structure of its much longer 
legs, — the tibia3 of which (instead of being spinulose, cora- 
23ressed, fossorial, and apically unarmed) are elongate, 
narrow, and (as in all the Cossonidce except the Notio- 
mimetides and the Oiiycholipides) uncinated at their outer 
angle ; whilst the feet, instead of being simple and (juadri- 
articulate, are on the ordinary pseudotetramerous type, — 
the third joint being expanded and bilobed, and the fourth 
one minute and hidden. With these most important dis- 
crepancies, it seems to me quite impossible (despite the 
opinion of Lacordaire) to admit Styphloderes into the 
same actual section as those two genera ; yet I have never- 
theless acknowledged the points of agreement between the 
three (which consist mainly in their much-abbreviated 
metasternum and pallid hue) by placing them almost in 
juxta-position, — namely at the end and nearly at the 
beginning, respectively, of two distinct subfamilies. In 
its mode of life, no less than in its structural details, 
Styphloderes does not appear to be fossorial; though it is 
nevertheless stated by Motschoulsky {vide Guer. Rev. de 
Zool. 427. 1851) to have been found beneath marine 
rejectamenta on the sea-shore near Marseilles. It belongs 
essentially to Mediterranean latitudes, having been captured 
in the south of Europe and the north of Africa. 
The only member of this genus with which I am 
acquainted (viz. the exsculj)tus, Boh., or littoralis, Mots.) 
has been hitherto associated with Cotaster; but if we are 
to regard the Phloeophagus uncipes, of Boheman, as the 
type of the latter (and it is expressly stated to be so), it 
seems absolutely necessary to propose an additional group 
to receive the former, — which differs essentially, in nearly 
every one of its details, from the uncipes. Thus, not only 
is it larger, and more pallid and depressed, but its rostrum 
is relatively very much longer, and rather narrower, its 
eyes are considerably smaller, its prothorax is uneven, 
