6O APPENDIX. 



Hierro. Nevertheless if this be the case (as I cannot but think far 

 from impossible), it would perhaps tend to imply that the 0. navi- 

 cularis (from Teneriffe), the punctatissimus (from Palma), and the 

 calvus (from Hierro) are but insular phases of a single, somewhat 

 plastic, species. But, however this may be (for it is next to im- 

 possible to decide for certain), the G. calvus differs from the Palman 

 punctatissimus in being just appreciably more oblong and depressed, 

 entirety bald, and with its punctation (if anything) a trifle finer and 

 less dense. Its prothorax, likewise, which is not quite so convex, 

 has the basal angles perhaps somewhat less produced ; and its elytral 

 striae are a little more lightly impressed. 



Crypticus nitidulus, n. sp. 



(7. sat breviter oblongus, convexus, ater, omnino calvus, nitidus, 

 ubique paulo minus dense et (praBsertim in prothorace) multo pro- 

 fundius punctatus ; prothorace latiusculo, convexo, ad latera ro- 

 tundato, angulis posticis vix productis obtusis, intra angulos late 

 et conspicue impresso ; elytris distincte substriato-punctatis ; an- 

 tennis, palpis pedibusque piceo-ferrugineis. Long. corp. lin. 3J. 



Habitat Gomeram, a DD. Crotch repertus. 



A few examples now before me of a Crypticus, which were cap- 

 tured by the Messrs. Crotch in Gomera, are so distinct from the 

 other species recorded in this volume that I cannot possibly treat 

 them as an insular modification of any of their Canarian allies. In 

 their oblong outline and the rounded edges of their prothorax, they 

 are perhaps more on the type of the C. oblongus than of the more 

 elliptic members of the genus ; nevertheless they are very much 

 larger and broader than that insect, and their punctation is (espe- 

 cially on the prothorax) extremely coarse. Indeed the latter cha- 

 racter, in conjunction with their comparatively shining, intensely 

 black, and totally bald surface, and their broad, laterally rounded 

 prothorax, which is widely and conspicuously impressed posteriorly 

 towards either edge, and has its hinder angles somewhat obtuse, will 

 serve to separate them from the other Cryptici enumerated in the 

 present Catalogue. I believe that the Messrs. Crotch's specimens 

 were taken on the sylvan mountains above Hermigua. 



Fam. OPATEID^]. 



Genus HADRUS. 

 (Dej.) Wollaston, Ins. Mad. 502 (1854). 



