536 Mr. T. Vernon Wollaston on the 



tricarinated, and constricted in front (instead of being 

 convex and simple), its antennae are more elongated and 

 slender, inserted nearer to the apex of the rostrum, and 

 with the (less compact) funiculus-joints (especially the 

 second one) longer, its legs also (particularly as regards 

 the tibiae) are longer and thinner, and its feet have the 

 third articulation more evidently expanded and bilobed, 

 and the claws conspicuously more developed. The body 

 moreover, instead of being coarsely, though sparingly, 

 pubescent (with the pubescence developed on the elytra 

 into elongate, erect setae), is bald.* 



37. COTASTER (Motschoulsky, Guer. Rev. Zool. 425. 

 1851). In primd facie aspect this is one of the most 

 remarkable genera of the Cossonidcs with which I am 

 acquainted; and, although European, it appears to be 

 somewhat scarce in collections. I am however indebted 

 to Mr. Gray and to Mr. E. "W. Janson for the opportunity 

 of examining several types which, judging from labels 

 which are appended to them, appear to have been 

 captured by M. Hampe in Croatia. Before an accurate 

 inspection, it has much the appearance of a small and 

 rather narrow Acalles, its convex, ovate body, and nearly 

 opake, reddish-brown surface (which is sparingly clothed 

 with decumbent fulvo-cinereous pile, which however is 

 developed on the alternate interstices of the elytra into 

 elongate erect bristles), giving it a character which is 

 strongly suggestive of certain members of that group. Its 

 rostrum is rather long and cylindrical ; its prothorax 

 (which is narrower than the elytra, at any rate than the 

 widest portion of them) is suboval, closely punctured, and 

 even (being scarcely at all constricted behind the apex) ; 

 its elytra are ovate and punctate-striated, with the inter- 

 stices convex and remotely studded (at any rate as regards 

 the alternate ones) with the elongate setas to which I have 

 above alluded; its antennas (which have their scape robust, 

 slightly curved, and considerably thickened towards the 

 apex, and their second funiculus-joint not at all lengthened) 

 are inserted a little before the middle of the rostrum ; its 

 legs are a good deal incrassated ; its claws are exceedingly 



* I have had no opportunity of inspecting the citneipennis, Aube ; 

 but, judging from the diagnosis, my belief is that it will be found to be a 

 true Cotaster (and therefore congeneric with the uncipes), and not refer- 

 able to the group which I have established for the reception of the ex- 



