THE ENTOMOLOGIST. 457 
garden, and in the following June found the empty pupz 
cases sticking out of the mortar on the outside (not one, but 
a dozen or more). I next tried them by putting some larve 
in a large garden-pot, about fifteen inches deep, with a little 
mould in the bottom, then some pieces of decayed willow, 
and covered it with glass. I found this plan succeed 
admirably, rearing all the larvae. Cossus larve invariably 
feed in the trunks of large trees, seldom going higher than 
five feet from the ground, and in the autumn months may be 
found full fed under the bark of the trees infested with them, 
some inch or two under the ground. With Atsculi it is very 
different, as they are found at the top of high ash or elm 
trees; they feed on the sap or centre of the small branches, 
varying in thickness from one’s finger to one’s wrist. Their 
presence may be ascertained by the small pellets of pink 
frass lying about under the trees. I[ noticed some trees so 
infested two years since in Tuffnell Park. Myself and others 
obtained permission to cut some of the branches, which we 
kept in a damp place, and from which we succeeded in 
rearing many of the perfect insect. I went to the same trees 
in July, and took twenty dozen imagos from one tree; they 
were all in the topmost branches of a large elm. I divided 
the specimens | secured with two or three brother entomolo- 
gists who accompanied me, and we could have taken as many 
more if we had required them. I notice that the trees in my 
neighbourhood are much infested with the larve this autumn. 
I have found the larve of A¢sculi in the branches of elm, ash 
and pear, and in the small trunks or stems of whitethorn, 
lilac and box.—J. Russell; 18, Mount Pleasant Road, 
Hornsey. 
Larve of Bombya Quercus feeding on Ivy.—It may be 
interesting to some of your readers to know that some little 
time ago | found the larve of B. Quercus feeding on ivy in 
the garden. Is not this a very unnatural food-plant for this 
species? The larve in question must, I think, have been 
produced from some eggs which | threw away during the 
summer. I suppose, on being hatched, they began to 
feed on the first thing that came to hand, which happened to 
be the ivy. I cannot otherwise account for their strange 
choice.—WM. A. J. Pitman; Oxford House, Kidbrooke Park 
Road, Blackheath. 
