CANARIAN COLEOPTEKA. 337 



it is identiccal with our present species. It is, however, a rather 

 small, rabhed, and not quite mature (male) example, in which the 

 prothoracic keel is but slightly developed. These facts may account 

 in some measure for the excessive badness of Boheman's description, 

 though they cannot justify absolute misstatements, in which the 

 diagnosis and description are made to contradict each other. 



The A. canariensis appears to be confined to very lofty altitudes 

 in TenerifFe, never descending (so far as I have observed hitherto) 

 even into the wooded districts, but occupying the elevated regions 

 which are specially characterized by the presence of the Spartlmn 

 nuhigena, or '' Retama " — the superb Broom pecuHar to those upland 

 tracts. In such situations I took it abundantly, during May 1859, 

 from beneath stones and scoriae, on the Cumbre adjoining the Caiiadas, 

 above Ycod el Alto (from about 8000 to 9000 feet above the sea) ; 

 as well as on the opposite Cumbre, above the Agua Mansa. In the 

 former of those localities it has been also found, more recently, by 

 Dr. Crotch. 



§ II. Corpus sat m%gnum ; scrobe postice lata divaricatd ; ocuUs modice 

 prominentibus. Fades sexiialis hand valde dissimiUs, sed pedibvs 

 secundum sexum plus minus dlversis. (Subg. Canopus, WoU.) 



526. Atlantis subnebulosa, n. sp. 

 A. fusco-nigra, subopaca, parce et minute submetallico-squamoso- 

 tessellata; rostro parallelo, minute et leviter subpimctato, late 

 concave, canalicula (antice tenui sed postice inter ociilos parvos 

 prominentes profuiidfi foveoeformi) impresso ; prothorace angustulo, 

 profunde et dense ruguloso-punctato, carina antice evanescente 

 instructo ; scutello parvo ; elytris profunde punetato-striatis, in- 

 terstitiis exterioribus postice subelevatis ; antennis pedibus<iue vix 

 dilutioribus. 

 Mas adhuc latet. 

 Foem. tibiis posticis simplicibus. — Long. corp. lin. 5. 



Habitat Canariam Grandem, tempore vernali a.d. 1858 semel tan- 

 tum lecta. 



Judging from the unique example (a female one) of this insect 

 now before me, I think it will be impossible to regard it as an insular 

 modification of the A. tibialis, though in size and general proportions 

 it has certainly much in common with it. Nevertheless its rather 

 browner and more opake surface, which is sparingly tessellated all over 

 (though particularly on the elytra) with minute palish-metallic scales, 

 in conjunction with its more rugose prothorax (on which there is a 

 distinct central keel, which vanishes in front), its rather less dimi- 

 nutive scutellum, the somewhat smaller punctures of its striye, and 



