34 CANARIAN COLEOPTEKA. 



shining surface, fusco-x^iceous hue, and rather large size ; by its pro- 

 thorax (which is a little rufescent at the edges, and not much re- 

 curved) being about equally narrowed before and behind ; and by 

 the discal punctures of its elytra being well developed and distinct. 

 I took it in profusion, during May of 1859, from beneath stones on 

 the Cumbre adjoining the Canadas, above Tcod el Alto (where it has 

 subsequently been captured by Dr. Crotch), as also on the opposite 

 Cumbre above the Agua Mansa. In both instances, however, I ob- 

 served a few stray specimens at a rather lower altitude, — namely, 

 almost at the Agua Mansa and Ycod el Alto themselves ; but as even 

 those spots could not be less than some 5000 feet in elevation, there 

 can be no doubt that the C. ascendens must be regarded as an alpine 

 species. 



56. Calathus cognatus, n. sp. 



C. subconvexus ; capite prothoraceque nitidissimis, rufo-piceis, hoc 

 subconico (postice multo latiore), ad latera subpallidiore et paulo 

 recurve ; elytris jDiceis, vix (certe in sexu masculo) obscurioribus, 

 hnea basali in utroque rectissima, profimde striatis, interstitiis 

 convexis, tertio punctis 2 distinctis notato ; antennis pedibusque 

 rufo-testaceis. — Long. corp. lin. 5. 



Habitat Gomeram ; duo specimina in montibus supra Hermigua 

 deprehendit W. D. Crotch. 



The only two examples (both of them males) which I have seen of 

 the present Calathus were taken by Dr. Crotch on the mountains 

 above Hermigua, in Gomera, during the spring of 1862. In their 

 general aspect and colouring, as well as in the excessive straightness 

 of the basal rim of their elytra (extending from either shoulder to 

 the scutellum), and the fact of their male tibiae not being fringed in- 

 ternally with more hairs than is usual in the ordinary Calathi, they 

 are certainly more nearly related to the Teneriffan C. rectus than to 

 any other of the species here enumerated. They are, however, larger 

 and less depressed than that insect ; their prothorax is much more 

 conical (being relatively broader behind and narrower in front, and 

 with its sides consequently more oblique, causing the basal angles 

 to be less strictly right angles) ; their elytra are more shining (or 

 less alutaceous), much more deeply striated, and with the interstices 

 (down the third of which there appear to be but two impressed points) 

 more convex ; and their limbs are altogether more robust. 



57. Calathus rectus. 



Calathus fulvipes?, Brulle [nee Lat.\inWehhet Berth. (Col.) 56 (1838). 

 . rectus, Woll, loc. cit. 346 (1862). 



Habitat in locis inferioribus et intermediis Teneriflfe, passim. 



