358 



CHRYSOMELID^:. 



A Canarian Chrysomela which is widely spread over the inter- 

 mediate and rather lofty elevations of Teneriffe, where it occurs 

 principally in sylvan spots. I have not myself detected it in any of 

 the other islands ; but a single example was communicated by Dr. 

 Crotch, obtained (as he believes) in Gomera during his first sojourn 

 there in 1862. 



M. Hartung cites the C. obsoleta as found in Lanzarote; but I 

 have not the slightest hesitation in regarding this habitat as erro- 

 neous the species being emphatically a sylvan one and confined 

 to the central portion of the archipelago. The mistake must 

 undoubtedly have arisen from his having failed to take sufficient 

 precautions against the after-intermixture of the material which he 

 collected in the various islands, a fact on which I have already 

 been compelled to comment, in the case of several insects concerning 

 the localities of which there could be no room for question. It is a 

 grievous misfortune for the subject of topographical distribution 

 when travellers omit to take that amount of care in the separation 

 of their specimens which can alone enable them, afterwards, to 

 report faithfully on the exact districts in which the latter were found. 



983. Chrysomela fortunata. 



Chrysomela fortunata, Wott., Cat. Can. Col. 402 (1864). 

 Habitat Canarienses (Palma), in montibus semel capta. 



A single example of this Chrysomela, taken by myself in Palm 

 of the Canarian Group (on the mountains above S ta Cruz), embodies 

 all that I know about the species of which it is the exponent. I 

 scarcely think that it can represent any insular phasis of the obsoleta ; 

 nevertheless until further material has been obtained for inspection 

 it would be unsafe to regard its diagnosis as satisfactorily established. 



984. Chrysomela rutilans. 



Chrysomela rutilans, Wott., Cat. Can. Col. .402 (1864). 

 Habitat Canarienses (6rom.), rarissima. 



A noble Canarian species which has been found hitherto only in 

 Gomera. It was taken by Mr. Gray and myself in the Barranco 

 above San Sebastian, and recently in greater abundance by the 

 Messrs. Crotch. Its large size, and brassy, unalutaceous, brilliant 

 surface, added to its subquadrate and considerably developed protho- 

 rax (which is very deeply impressed on either side), will at once 

 abundantly distinguish it. 





