532 Mr. T. Yernon Wollaston on the 



hairs beneath, and (instead of being on the ordinary pseu- 

 dotetramerous type) strictly four-jointed. Its sculpture 

 is very peculiar, the punctures (which are lighter towards 

 the apex of the elytra) being exceedingly large and few in 

 number (somewhat after the fashion of what obtains in 

 Onycholips); its rostrum (as in Alaocyba and Lipom- 

 mata) is appreciably, and gradually, narrowed in the 

 middle ; its surface, although appearing at first sight to 

 be quite bald, will be seen beneath a high magnifying 

 power to be studded (at any rate behind) with a few short 

 bristles ; and its legs are eminently fossorial, and greatly 

 incrassated, the triangularly expanded tibiae being deeply 

 scooped-out, or emarginate, towards their external angle, 

 the excavation being more or less filled-up, or pectinated 

 (at any rate in the posterior ones), with strong cilice, or 

 bristles. Its antennas (which are elongate, and almost 

 terminal as regards their insertion) have the second joint 

 of their funiculus perceptibly, though slightly, longer than 

 those which follow it, and their club excessively large, 

 abrupt, and distinctly annulated ; and its tarsal claws are 

 considerably developed. The concave, or longitudinally 

 impressed, structure, also, of its first and second abdominal 

 segments should be noticed ; but this I think has been 

 made too much of as a peculiarity, since the same feature 

 exists (more or less expressed) not only in Alaocyba, but 

 likewise in several genera of the Pentarthrides, such as 

 Amaurorrhinus, Microxylobius, Acanthom,erus, and Lam- 

 prochrus ; and we also find it in Cotaster, of the true 

 Cossonides. In no genus, however, that I have yet 

 examined, is the concavity so deep, and so well defined, 

 as it is in Raymondionymus. In their modes of life the 

 species of Raymondionymus seem to be in entire accord- 

 ance with the members of the present curious subfamily, 

 their compressed, dilated, setulose, apically unarmed tibiaa 

 indicating fossorial habits ; whilst their total freedom from 

 eyes would tend still further to imply a partially subter- 

 raneous propensity. And it is not surprising therefore 

 that the few which have hitherto been brought to light 

 (principally in the south of France) should have been met 

 with in such situations as beneath stones deeply imbedded 

 in the soil, within crevices of clay, and in the nests of 

 ants. I should add that the particular species from which 

 my diagnosis is compiled, and for a type of which I am 

 indebted to John Gray, Esq., is the R. Marqueti, Aube, 

 from Narbonne. 



