THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER, 125 
ply its mandibles; but it is somewhat 
strange that in this species the end of the 
vostvuin is not dilated in the male more 
than in the female, as in several others 
of the same genus, the sexual difference 
in size of the mouth is very great. We 
do uot, however, know whether the tho- 
racic appendages may not assist in curl- 
ing up the leaf for the female to deposit 
her ovum. — E. C. Rye, 284, Kings Road, 
Chelsea, S. W. 
EXCHANGE. 
Slilpnotia Salicis. — I have several 
larvae of this species to spare, and I shall 
be happy to forward some to any gentle- 
man who may be in want of them, on 
receipt of a box and return postage. If 
any gentleman has anything to offer in 
return I will pay the postage back. 
Almost anything (larvae, pupae or imago) 
will be acceptable, as my wants are very 
numerous. I am in London at present, 
but I shall return to Yorkshire next 
Saturday, so gentlemen will please ad- 
dress to — R. T. Chalonee, at Rev. 
J. W. Chaloner’s, Newton Kyme Rectory, 
near Tadcaster, Yorkshire; July 16. 
Coleophora saturalella, — I have lately 
bred a very line series of this pretty spe- 
cies, some of which I should be happy to 
exchange for other Micro-Lepidoptera. — 
Charles Healy, 74, Napier Street, 
Hoxton, N.; July 16. 
Exchange. — Having images of Arctia 
Villica and pupae of Epunda Lichenea, 
I should like to exchange with any one 
willing to do so. My wants are mostly 
in the Spliingina and Bombyces, such as 
the Sesias, Sphinges and also Charocampa 
Porcellus and Anthrocera Trifolii ; but 
iny wants are too numerous to specify. 
Please to write first. — R. P. Haeivie, 
8, Keppel Place, Stoke, Devon; July 16, 
Exchange. — I shall be glad to exchange 
the larvae of N. Trepida for the healthy 
larvae or pupae of many other species. 
My larvae have been fed on the tree, and 
protected from ichneumons, and I should 
prefer larvs that have been kept in the 
same manner. Applicants must write 
first. — Rev. B. H. Birks, Stonor, Henley- 
on-Thames ; July 16. 
ON SOME PECULIAR FORMS 
AMONGST THE MICRO-LEPl- 
DOPTEROUS larva;. 
BY H. T. STAINTON. 
[Read at the Meeting of the British Association 
at Oxford.'] 
Ix is well known that the normal form 
of a Lepidopterous larva is a cylinder, 
flattened beneath, and slightly tapering 
and rounded at each end. To this, the 
typical form of a Lepidopterous larva, 
we have abundant exceptions in most 
groups; thus we have the woodlouse- 
shaped larvae amongst the butterflies, 
and again amongst the Bombycina; and 
in the latter group we have also numerous 
instances of larvae adorned with humps 
or large protuberances on several of the 
segments, atid in some of the Noctuae 
larvae we observe a protuberance on the 
eleventh segment. 
The normal number of legs is sixteen ; 
that is, six true legs and ten prolegs ; 
but two of the latter are wanting in some 
of the Bombycina and in some of the 
Noctuina, and in the whole group of the 
Geometrina from four to six of the pro- 
legs are wanting. 
In the group of the Torticina there 
are very few deviations from the typical 
form of the larva; but amongst the 
Tineina we find many genera which give 
instances of very considerable deviation 
from the regular cylindric form. 
