the Atlantic Cossonides. 381 



Iiave (up to tlie present date of discoveries) (ill nilli a 5-jomlcd 

 funiculus, the following eleven exponents of the sub-family Cos- 

 nonules : — two PcnUnthra (viz. from the west of England and the 

 island of Ascension respectively) ; two Mesoxeni (from Madeira 

 and the Canaries) ; one Pentatemnus (from the roots of sand- 

 j)lants in the Canaries) ; and including M. Clievrolat's original 

 type, which I have not inspected, six Microxtjlobii (from St. 

 Helena). 



The Micruxylobii now before me, although possessing (as lately 

 stated) the same essential characters amongst themselves, differ 

 so very much (specifically) in external contour, that we n)ay be 

 almost certain that many intermediate forms will yet be brought 

 to light, and that, like the INIadeiran Caulutrupidcs, they will be 

 found to be an extensive insular assemblage. So curious an 

 analogy, indeed, do they bear to the several members of Caulo- 

 tnipis, that 1 have given these five the same trivial names i/iler 

 sc, by way of calling attention still further to this singular (though, 

 perhaps, somewhat fanciful) parallelism. 



§ I. Femora Qii ulroque sexu?) mulica. 



A. Funiculi arliculus \mus secundo diitincle latior ; 2dus tcriio vix 

 longior. (^Microxijlohii lijpici.) 



21, Microxi/lvbius IVcslxvoodii, Chev. 

 Microxijlobius Wcslivoodii, Chev., Trans. Ent. Soc. Lond, i. 'J8, pi. 



X. f. 6(1836). 

 Having been unable to obtain a sight of this insect, I know 

 nothing of it beyond what may be gathered from M. Chevrolat's 

 original diagnosis. But I infer, from Mr. Westwood's excellent 

 figure which accompanies it, that it is a member of the former of 

 my two sections here indicated, — not merely in its unarmed 

 femora and diminutive bulk (it being described as only a line in 

 length, and therefore even smaller than the M. laccrlosus), but also 

 in the second joint of its funiculus being subequal to the tliird. 

 In its brassy hue it would seem to accord with the majority of the 

 species here characterised. 



22. Microxijlobius laccrlosus, n. sp. (PI. 18, fig. 5.) 

 M. elongato-ovatus, piceo-niger, sub-opacus, alutaceus ; capite 

 rostroque confcrtissime scd minus profunde punctatis (hoc 

 subconvcxo) ; prothorace longiusculo, subconvexo, confer- 

 tissime punctate, ad latera minus rotundato ; elytris sub- 

 seriatim tuberculatis (hand punctatis) et levitcr longitudin- 



