THE ENTOMOLOGIST. 373 
size and tapering off again ; the general colour is pale green, 
with a pale yellow line above the spiracles, which are black ; 
in each segment there is the appearance of a black ring under 
the skin, so that if it changed skin again it would be black- 
ringed. I found it domiciled between two leaves of nettle.— 
A. C. Hervey; Colmer Rectory, Alton, July 23, 1871. 
I think it is Pyrameis Atalanta. 
Mould on Insects.—Can you kindly tell me what to do in 
the following fix? viz.:—I have a case of moths, many of 
which have become covered with a white mould, more parti- 
cularly the antenne and edges of the wings; I can remove 
this by brushing, or benzine will take it away for a short 
time, but it returns again, bad or worse than ever. Can you 
give me any idea of the cause, and if there is any remedy? 
The case is kept in a room where there is a fire daily, so that 
I do not think it proceeds from damp: many of the insects 
are valuable, and I am quite at a loss what to do.—W. H. 
Pearson ; Ivy Hall, Solihull, July 25, 1871. 
The insect in the condition described should be touched 
with a camel’s-hair pencil dipped in a weak solution of cor- 
rosive sublimate in alcohol; after one or two applications the 
mould will certainly disappear, and is not likely to return. 
Rearing Zeuzera from the Kgg.—The other day I found 
a number of the leopard moth’s eggs, which I wish to rear. I 
looked in your moth book, and found that the leopard cater- 
pillars fed on solid wood. I should feel much obliged to you 
if you would tell me the most practicable method by which I 
could rear the caterpillars, for I have not got in my collection 
a single good specimen of the leopard moth.—Cecil Brooks ; 
6, Kent Terrace, Regent’s Park, July 29, 1871. 
I believe the attempt to rear Zeuzera A‘sculi from the egg 
is almost sure to fail. The only mode I can suggest is to 
confine the moth, by means of a loose muslin covering, to the 
stem or branch of an apple-tree, and thus compel her to deposit 
her eggs on the bark: these will hatch in process of time, 
gnaw little holes in the bark, and feed for a year, at least, on 
the solid wood, as I have so fully described (Entom. ii. 92), 
remaining entirely out of sight until the final change to a 
moth takes place. It will be difficult, if not impossible, to 
exercise that care over the larve of Zeuzera which we do 
over the leaf-eating larve. 
