( V ) 
thought that if Lepidoptera generally were well collected 
in Australia and New Zealand, it would be found that this order 
was not so poor in species as was supposed. He instanced 
the case of the Sandwich Islands, where it was supposed that 
there were very few species of Lepidoptera, and yet some 
500 species, or perhaps more, had been recently found there 
by Mr. E. C. L. Perkins, who had been sent to investigate 
the islands by a committee appointed by the Koyal Society 
and British Association. 
Mr. McLachlan said he was of opinion . that no definite 
demarcation of regions existed, but that all the regions over- 
lapped ; in any case, the retention of Palsearctic and 
ISTearctic as separate provinces was not warranted on Entomo- 
logical data. He thought that at the close of the Glacial 
Period some insects instead of going north dispersed south- 
wards, and that the present Geographical Distribution of 
some forms, especially as regards Chili, might thus be 
accounted for. 
Mr. Osbert Salvin said he thought we were only just 
beginning to acquire sufficient facts to enable us to arrive at 
any conclusions as to the Geographical Distribution of insects. 
We required a much greater knowledge of Meteorology and 
Geography, also of the boundaries of Forests and Mountain 
ranges. 
Mr. J. J. Walker said he could corroborate, from recent 
experience, the remarks made by Dr. Sharp, as to the extreme 
isolation and peculiarity of the fauna of Australia, especially 
as regards the Coleoptera ; and he then spoke of the compara- 
tive poverty of Australia in strictly endemic types of butter- 
flies. Mr. Walker stated that with reference to the point 
raised by Mr. Elwes on pp. Ixxii, Ixxiii of his address 
(Part V. Trans.), respecting the small number of species of 
butterflies found in South Africa, according to his experience 
this poverty of species is general throughout the higher 
southern latitudes of the globe, and especially in the Southern 
Islands. Tasmania has only about twenty-five species of 
butterflies as yet recorded, although a splendidly wooded 
island with a very varied surface, enjoying a genial climate, 
and possessing a very rich Coleopterous fauna. It has h\ii 
one Fcqnlio, one Fieris (the widely distributed P. teutonia)^ 
