130 
ISLAND LIFE. 
[part II. 
59. L. caledoniella. North Britain (1854). A local variety of the more 
widespread L. corylifoliella. 
60. L. dunningtella. North of England (1852). A somewhat doubtful 
species. 
61. Bucculatrix demaryella. Widely distributed (1848). Rather 
common. 
62. Trifurcula squamatella. South of England (1854). A doubtful 
species. 
63. T. atrifroittella. South of England, also in Lancashire (1854). Very 
rare and peculiar. 
64. Nepticula ignobiliella. Widely scattered (1854). On hawthorn, 
not common. 
65. N. poterii. South of England (1858). Bred from Larva? in Poterium 
scinguisorba. 
66. N. QUiNQUELLA. South of England (1848). On oak-leaves, very local. 
67. N. apicella. Local (1854). Probably confused with allied species on 
the continent. 
68. N. headleyella. Local (1854). A rare species. 
Pteropiiorina. 
69. Agdistis bennettii. East coast (1840). Common on Stalice limonium. 
We have here a list of sixty-nine species, which, according 
to the best authority, are, in the present state of our know- 
ledge, peculiar to Britain. It is a curious fact that only five of 
these have been described less than twenty years ago ; and as 
during all that time they have not been recognised on the 
continent, notwithstanding that good coloured figures exist of 
almost all of them, it seems highly probable that many of them 
are really confined to our island. At the same time we must 
not apply this argument too rigidly, for the very day before my 
visit to Mr. Stainton he had received a letter from Professor 
Zeller announcing the discovery on the continent of a species of 
our last family, Pterophorina, which for more than forty years had 
been considered to be exclusively British. This insect, Platyptilia 
similidactyla (Pterophorus isodadylus, Stainton’ s Manual), had 
been taken rarely in the extreme north and south of our islands — 
Teignmouth and Orkney, a fact which seemed somewhat indica- 
tive of its being a straggler. Again, seven of the species are 
unique, that is, have only been captured once ; and it may be 
supposed that, as they are so rare as to have been found only 
once in England, they may be all equally rare and not yet found 
on the continent. But this is hardly in accordance with the laws 
