Genera of the Cossonidce. 535 



36. STrniLODERES (nov. gen. ; COTASTER, Mots., 

 pars). In its exceedingly abbreviated metasternum, 

 obsolete scutellum, and elongated antennse (which are 

 implanted considerably before the middle of the rostrum), 

 as well as in its more or less pallid hue and subelliptical 

 elytra, Styphloderes has much manifestly in common with 

 Raymondionymus and Alaoci/ba, 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 tibiaa of which (instead of being spinulose, com- 

 pressed, fossorial, and apically unarmed) are elongate, 

 narrow, and (as in all the Cossonida except the Notio- 

 mimetides and the Ony cholipides) uncinated at their outer 

 angle ; whilst the feet, instead of being simple and quadri- 

 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 exsculptus, Boh., or littoralis, Mots.) 

 has been hitherto associated with Cotaster; but if we are 

 to regard the Phlozopliagus 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, 



