THE BUTTERFLIES AND MOTHS OF AFRICA. 235 
I first bought a specimen of a Madagascar orchid, Angraecum viride, 
in Covent Garden, and then had an exact copy of its flower and 
leaves taken in wax, while retaining the real root of the orchid, as 
not liable to wither. I then had the plant, thus formed, as one of 
a parasitic nature, affixed to the supposed topmost bough of a dead 
tree, round which Uranias are flitting, while the foreground, 
intended to represent a plateau on the summit of the hill in front of 
the tree ascending from the vale beneath, is covered with a moun- 
tain Lycopodium accordingly. I also directed the bird-stuffer as to 
the attitude and position of each of the insects thus enclosed in a 
glass case. 
Page 231.—In reference to the particular species here mentioned 
as tending to illustrate my friend, Mr. Kirby’s paper, I shall be 
happy to show them to any one interested in the subject. I 
possess, and would have brought with me to-night, the greater 
part of the kinds that he speaks of, only for the risk involved 
in removing them from cabinet drawers for the purpose. 
Mr. W. J. Srater, F.H.S.—Mr. Kirby will doubtless have noticed 
the beautiful modifications which Daphnis Neri: takes in South 
Africa. The pretty green which the European specimens have on 
their wings, is there more of an olive colour, so that certain English 
collectors, to whom I have shown specimens I have received from 
Zululand, have declared they were not Daphnis Nerii, but a 
totally different insect. The question is, whether this change de- 
pends on climate or on difference of food, for I have not ascertained 
whether it there feeds on the oleander or some different plant. I 
may mention in connexion with the subject that the moth is also 
found in Ceylon, and there feeds on the Peruvian bark tree, though 
it belongs, botanically and chemically, to a totally different group 
from the oleander. 
A Visitor asked a question in regard to the disposition of butter- 
flies, and whether the different species were confined to different 
zones. 
The AvrHor.—With reference to Dr. Walker’s observations 
respecting Madagascar, I did not intend specially to discuss the 
question of Madagascar in the present paper; but I may say that 
there is a considerable connexion between its Fauna and that of 
India. Only the other day I was looking over some dragon-flies 
from Madagascar, and to my surprise I found a new species of a 
genus which I thought to be exclusively Indian, and also a new 
genus very peculiar in form and nearly resembling two genera 
