212 CANARIAN COLKOPTEEA. 



Habitat sub lapidibus in inferioribus Teneriifse, hinc inde baud in- 

 frequens. 



In theii' general outline and size, as weU as in their comparatively 

 globose prothoraces (which are very convex anteriorly and much 

 narrowed behind) and in their elytra being more truncated obliquely 

 at either shovilder, the present CoptostetJius and the following one 

 have a good deal in common. The C. canariensis however is, on the 

 average, browner (or less dark), as also a little more shining, than 

 the glohidicoUis ; its elytra are more finely crenate-striated, with their 

 interstices flatter, and their pubescence perhaps somewhat shorter and 

 less dense ; its antennae, palpi, and legs are always paler (being in- 

 variably pale-testaceous) ; and its prosternum is horizontal anteriorly, 

 instead of being bent downwards just behind the mouth. The C. 

 canariensis appears to occur in the hiver altitudes of TenerifFe — where 

 it is not uncommon, beneath stones, around the Puerto Orotava, from 

 the sea-level up to the elevation of about 800 feet. And although 

 it may very likely exist in spots of a rather higher altitude, it evi- 

 dently does not ascend into the regions of the C. glohulicollis. 



332. Coptostethus glohulicollis. 



C. niger elytris rarius dUutioribus, subcinereo-pubescens ; prothorace 

 convexo, basi angustato, antice lato, prosterno antice deflexo ; ely- 

 tris convexis, pube subdemissa tenui vestitis, ad humeros oblique 

 truncatis, sat profunde crenato-striatis, interstitiis subconvexis ; 

 antennis pedibusque subgracilibus, infuscato-testaceis, illis inter- 

 duni etiam subnigrescentibus. 



Variat elytris vel concoloribus vel versus humeros plus minus di- 

 stincte rufoscentioribus. — Long. corp. lin. 1|— 2|. 



Coptostethus glohulicollis. WoU., Ann. Nat. Hist. (3rd series) ix. 440 

 (1862). 



* Habitat sub lapidibus in montibus excelsis Teneriffae, a 3500' usque 

 ad 8000 vel 9000' s. m. ascendens. 



Whilst the C. canariensis occurs in the lower elevations of Tene- 

 rifFe, the globulicoIJis, on the other hand, would appear to be confined 

 to the higher ones of the same island, — attaining its maximum on the 

 lofty Cumbres, at an altitude of from about 8000 to 9000 feet above 

 the sea. It may be known from its ally by being, on the average, 

 darker and a little less shining (being often quite black throughout, 

 except the limbs) ; by its elytra being more deeply crenate-striated, 

 with their interstices more convex and their pubescence perhaps 

 somewhat denser ; by the front portion of its prosternum (which 

 covers the mouth) being more e\'idently bent downwards ; and by its 



