444 CANARIAN COLEOPTERA. 



sent one I have seen as yet but two exami^les, both of which were 

 captured in Gomera — one of them by Mr. Gray during February 

 1858, near San Sebastian, and the other during the spring of 1862 

 by Dr. Crotch. The A. ixirce])unctatiis may be known by its surface 

 being less opake than is the case in its allies, and sparingly but dis- 

 tinctly punctured all over — the elytral punctures, however, being a 

 trifle larger than the remainder. Its frontal carina is conspicuous, 

 but not greatly arcuated ; its prothorax is somewhat obliquely- 

 straight at the sides (or, if anything, even a little incurved behind 

 the middle), and rather coarsely margined ; its elytra are slightly 

 malleated ; and its epipleural costa is subabruptly terminated beliind. 



§ II. Epistoma apice vd fere vel omnino simpliciter emarginatum. 

 a. Epipleurce pAica Jmmeralis ohsoleta. 



678. Arthrodes subciliatus, n. sp. 



A. globoso-ovatus, subnitidus, in limbo (prasscrtim antice) parce fulvo- 

 pilosus ; capite prothoraceque dense et profunde punctatis, illius ca- 

 rina frontali recta valde elevata,epistomate antice obsoletissime sub- 

 tridentato (interdum quasi simphciter emarginato), hoc ad latera 

 fere baud (sed antice scnsim) marginato ; clytris convexis, subtilius 

 asperato-punctulatis, paulo mallcatis ; antennis pedibusque longi- 

 usculis, graciliusculis, ilHs una cum tarsis rufo-piceis, tibiarum an- 

 ticarum spinis duabus elongatis. — Long. corp. Hn. 25-vix 3. 



Hahitat Fuerteventuram, ad radices plantarum in aridis arenosis 

 submaritimis fodiens. 



Apart from its small size and subglobose body, which has the edges 

 (and the underside immediately beneath them) sparingly studded, as 

 in many other sand-insects, with a few fulvcscent hairs, and its epi- 

 plcurae greatly rounded and obtuse, with their lateral costa entii-ely 

 obsolete, this remarkable little species may immediately be known by 

 its rather shining surface, by its head and prothorax being densely 

 and very coarsely punctured, whilst the elytral punctules are smaller 

 and asperate, by its frontal keel being straight and much elevated, 

 and by its antennae and legs being comparatively rather long and 

 slender. The two spines of its anterior tibiae are acute and consi- 

 derably developed, and its epistome is so obsoletely tridentate in front 

 that even the rudiments of a central tooth (although sometimes ap- 

 parent) seem often to be totally inappreciable — when, of course, 

 there is merely an emargination. 



The A. subciliatus is eminently a sand-burrowing insect, occurring 

 at the roots of plants on the small hillocks of drifted sand adjoining 

 the sea-coast in Fuerteventura. In such situations it was taken by 



