354 ISLAND LIFE 



62. Apion ryei (Blackburn). Shetland Islands. Several specimens. 



Perhaps a var. of A. fagi. 



Chrysomelid^, 



63. Chrysoniela staphylea, ran shaepi (Fowler). Sohvay district. 



Halticid^. 



64. LoxGiTARSiTS AGiLis (Rye). South of England ; many specimens. 



65. ,, DiSTiNGUEXDA (Rye). South of England ; many speci- 

 mens. 



66. PsYLLiODES LCRiDiPENNis (Kutscliera). Lundy Island. A very 



curious form, not uncommon in this small island, to which it 

 appears to be confined. "An extreme and local variety of 

 P. clirysoccijhala " (Fowler). 



COCCINELLII)^. 



67. ScYMXI^s LiviDUS (Bold). Northumberland. A doubtful species. 



Of the sixty-seven species and varieties of beetles in the 

 preceding hst, a considerable number no doubt owe their pre- 

 sence there to the fact that they have not yet been discovered 

 or recognised on the continent. This is almost certainly the 

 case with many of those which have been separated from 

 other species by very minute and obscure characters, and 

 especially with the excessively minute Trichopterygidse 

 described by Mr. Matthews. There are others, however, to 

 which this mode of getting rid of them will not apply, as 

 they are so marked as to be at once recognised by any 

 competent entomologist, and often so plentiful that they 

 can be easily obtained when searched for. The peculiar 

 species of Aj^ion in the Shetland Islands is interesting, and 

 may be connected with the very peculiar climatal con- 

 ditions there prevailing, which have led in some cases to a 

 change of habits, so that a species of weevil {Otiorhynchus 

 mcmrus) always found on mountain sides in Scotland here 

 occurs on the sea-shore. Still more curious is the occur- 

 rence of two distinct forms (a species and a Avell-marked 

 variety) on the small granitic Lundy Island in the Bristol 

 Channel. This island is about three miles long and twelve 

 from the coast of Devonshire, consisting mainly of granite 

 with a little of the Devonian formation, and the presence 

 here of peculiar insects can only be due to isolation with 

 special conditions, and immunity from enemies or com- 

 petir.g forms. When we consider the similar islands off 



