70 
THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
loss to account, as they all received the 
same treatment aud were all in the same 
jar. Here I should observe that mine is 
not a solitary instance of their doing so, 
as the very same circumstance came 
under the notice of a friend who was 
breeding the insect at the time. On the 
21st I found that the females who had 
deposited their eggs at the bottom of the 
jar had covered them with a kind of 
down : my first impression upon observing 
this downy covering was that it was in- 
tended for the protection of the eggs, 
hut, on cutting open two or three of the 
cases, inside of which the eggs were de- 
posited, I found them snugly ensconsed 
in the midst of a quantity of the same 
kind of down as that I had observed 
placed over the eggs at the bottom of the 
jar. What purpose this down was in- 
tended to answer completely puzzled me 
until, on the 11th of July, finding several 
young larvae crawling up the side of the 
jar, 1 examined them by the aid of a 
lens, when I found that the down (the 
use of which I could not comprehend) 
had been so placed over the eggs for the 
young larvae to envelop their bodies with, 
for on comparing the down round the 
bodies of the young larvae with that at 
the bottom of the jar I found it was pre- 
cisely the same material. I also find the 
following communication by Mr. R. S. 
Edleston, in the ‘ Zoologist ’ for January, 
1857, p.5406, respecting a genus closely 
allied to T. pseudo-bombycella : — 
“ Diplodoma marginepunctella. The fe- 
male covers her eggs with a thick coating 
of fur, in a similar manner to Porthesia 
uurijluaP 
And further to illustrate my assertion 
I send you a quill containing a quantity 
of young larvse of T. pseudo-bombycella, 
for your inspection. — Charles Healy, 
74, Napier Street, Hoxton, N.; Nov. 27. 
EXCHANGE. 
Exchange. — I have duplicates, in good 
condition, of the following species, as 
numbered in the Appeudix to the ‘ Ma- 
nual Nos. 74, 85, 91, 103, 137, 141, 
145, 147, 165, 172, 179, 184, 189, 190, 
204, 205, 211, 213, 224, 253,259,263, 
284, 290, 312, 337, 366, 373,376,402, 
415, 430, 432, 473, 512, 520, 525, 531, 
623, 633, which I should be glad to ex- 
change for Nos. 42,43, 68,88,89,90,92, 
93,94, 96, 97, 98, 100, 101, 102, 108, 109, 
1 10,1 1 1 , 1 13, 115, 1 17, 1 19, 120, 121, 122, 
123, 127, 128, 130, 131, 132,134, 140, 
142, 143, 149, 151, 152, 155, 156, 162, 
170, 174, 175, 176, 187, 191, 192,194, 
195, 196, 197, 198, 199, 200, 201, 202, 
203. I have also a quantity of pupte 
which I will exchange for any of the 
above insects, L. Quercus, E. Laneslris, 
S. Pavonia -minor . — James Varley, Al- 
mondbury Bank, Huddersfield ; Nov. 24. 
Exchange. — I have the following spe- 
cies in duplicate, for which I shall be 
glad to receive offers: — 
Psilura Mouacha 
Apamea Connexa 
Cerastis Vaccinii 
Polia Chi 
Aplecta Nebulosa. 
— B. Gibson, Alms-house Lane, Wake- 
field ; Nov. 22. 
RESPECTING LITHOSIA COMPLANA. 
To the Editor of the ‘Intelligencer.' 
Sir, — At p. 45 of the ‘Intelligencer’ 
you try to correct an error of Mr. Edle- 
ston’s, in his observations on Lithosia 
Complana ; permit me to correct you 
both. You there say, “ The grey tinge, 
we presume, not the hind wings them- 
selves,’’ when you ought to have said the 
yellow tinge, as the yellow in some speci- 
mens is entirely replaced by the dark 
greyish colour. 
I would also call attention to Mr. 
Edleston’s assertion that “in fact, the 
