150 CANAKIAN COLEOPTERA. 



doubtless imiversal at the Canaries, though I did not happen to meet 

 with it in Hierro ; for there can be but little question that it must 

 exist in that island also. It is found at nearly every elevation, and 

 in spots both sylvan and exposed. In Lanzarote and Fuerteventura 

 it would seem to be somewhat scarce ; but throughout the region 

 of El Monte in Grand Canary it is commoner ; in Teneriffe I have 

 taken it around S'*' Cruz, at Souzal, the Agua Garcia, the Agua Mansa, 

 and Tcod el Alto ; and in Palma I observed it, but sparingly. In 

 Gomera it was foimd, rather abundantly, by Dr. Crotch. In size it 

 is intermediate between the last species and the following one ; and 

 it may easily be recognized by its somewhat broad, compact, and 

 ovate outUne, rather wide and laterally-rounded prothorax (which 

 has the punctures comparatively remote, distinct, and weU defined, 

 a shallow, more or less rounded fovea in the centre of its base, and 

 its extreme hinder angles minutely prominent), by its redcUsJi-hrown. 

 hue (particidarly of the head and prothorax), and by its pallid limbs, 

 — even the antennal club not being infuscated. 



253. Corticaria tenella, n. sp. 



C. ovata, nigro-picea, minutissime et parce cinereo-pubescens ; capite 

 prothoracequc subopacis, hoc angusto, ad latera subintegro necnon 

 sequaHter et leviter rotundato, dense rugoso-pimctato, postice fovea 

 transversa subarcuata impresso ; elytris vix nigrescentioribus, sub- 

 nitidis, convexis, leviter punctate -striatis, interstitiis imiseriatim 

 punctulatis ; antennis pedibusque nifo-testaceis, illarum clava ob- 

 scuriore. 



Var. ft. Capite prothoraceque paulo rufescentioribus. [Insulce Gomera. 

 et Hierro.] — Long. corp. lin. i-vix g. 



Habitat in Canaria, TenerifFa, Palma, Gomera et Hierro, passim. 



In its minute size, convex, ovate body, and narrow, posteriorly- 

 impressed prothorax, the present insignificant little Corticaria is closely 

 aUied to the common European C. gibhosa. It is however, on the 

 average, still smaller than that species, and of a blacker (or less fus- 

 cous) hue ; its prothorax is not quite so narrow, a trifle rounder at 

 the sides, more closely, roughly, and less defijiitely punctured, and 

 with the hinder impression shallower; its head and prothorax are 

 often (at any rate in the var. j3, from Gomera and Hierro) of a rather 

 more piceous, or even subrufescent, hue ; and its antennae are a httle 

 less abbreviated. I have taken it sparingly, and in various positions, 

 in Grand Canary, Tenerifie, Palma, and Hierro ; and it was found, 

 rather plentifully, by Dr. Crotch in Gomera ; but it has not yet been 

 detected in the two eastern islands of the Group. 



