52 
THE SUBSTITUTE. 
we secured about twenty beauti- 
ful specimens. — C. S. Gregson, 
Stanley; November 
Pupa-digging. — During the last 
few days’ pupa-digging I have 
taken the following : 
iEgeria Apiformis, 
Smerinthus Tiliae, 
„ ^ Populi, 
Ceruva Vinula, 
Notodonta Diclaja, 
Acronycta Megacephala, 
Taeniocampa iuslabilis, 
„ stabilis, 
Hibernia progemmaria, 
Biston hirtaria, 
„ Betularia. 
— William Farren, June., 
King’s Old Gateway, Cambridge; 
November 6 , 1856. 
COMMUNICATIONS. 
Phlogopliora empyrea. — Would 
you please to record in your next 
‘ Substitute’ my capture at sugar, 
near Lewes, of four Phlogophora 
empyrea, and my friends, who 
were with me, of thirteen others, 
beside the twenty-one which your 
Brighton correspondent mentioned 
as having been taken at the same 
place, making thirty - eight in 
all. Two of your correspondents 
from Brighton make some allu- 
sion to there being some foreign 
empyrea in Brighton. I have 
taken great pains to inquire of 
every entomologist in Brighton 
(with the exception of your two 
corre.spondents) if they have any 
knowledge in any way of any 
foreign empyrea being in Brigh- 
ton, and they all emphatically 
deny and repudiate the idea of 
there being any here, and I think 
it but justice that you should pub- 
lish this statement (which is the 
truthful one) to correct the error 
which I am afraid your corres- 
pondents have intentionally, 
through a little jealousy in our 
having taken the insect, imposed 
upon you. If your correspondents 
have any clue to there being 
foreign empyrea in Brighton they 
ought, for their own credit and to 
clear themselves from suspicion, to 
make it known immediately. — 
George Smith, 9, King Street, 
Brighton; November 5, 1856. 
Leiocampa Dictcea and Dic- 
tceoides. — Perhaps you could find 
room for the following in your 
next Number, as it is a matter of 
life and death. Ventilation v. 
Suffocation. — Having been in- 
formed by two eminent collectors 
of Lepidoptera, one in England 
and one in Scotland, who have 
had much experience in rearing 
moths, that they have never suc- 
ceeded in bringing Dicteeoides to 
perfection, and having noticed the 
bad success recorded by Mr. Cart- 
mel and others, in attempting to 
rear Notodonta DicUca and N. 
Dictaoides, perhaps the following 
hints may be useful. To succeed 
in rearing these species in con- 
finement the greatest care is re- 
quired with the pu])®. 'They 
should not be left in the earth. 
Prepare a large box, say 20 inches 
long by 15 wide and 12 deep, fill 
it half full with earth and make it 
very damp, cover the earth with a 
layer of dry moss, upon which 
place the pti])® ; then put another 
layer of dry moss ui>on them. 
Keep the box in a cool airy place 
till May, at which time it may be 
removed into a warmer spot to 
feel the heat of the sun. 'This 
