268 
DOMICILES. 
Dec., 1892. 
I do not think that I can make any of my little observa¬ 
tions on the Rotifers and Polyzoa clear without my pictures ; 
so I will conclude this scrappy paper by saying that they, 
like the other animalcules which I have already mentioned, 
afford us examples of some individuals possessing skeletons 
and some without them. Of course, they have mouths, and 
far more highly organised digestive and reproductive apparatus 
than the Hydras, and may be considered to be quite highly 
organised animals. 
H. M. J. Underhill. 
DOMICILE S .* 
BY A. SIDGWICK, M.A. 
To prevent any disappointment from misplaced expecta¬ 
tions, let me say at once that I do not intend in this paper to 
give a general review of the domiciles of insects—a subject 
much too large for the modest limits of the time and the know¬ 
ledge at my disposal. But having, in the course of my rather 
desultory study of the ways of moths and butterflies, been 
latterly in the habit.of keeping the cases, cocoons, and shells 
of the larvae and the pupae that I bred. I thought it might be 
of some interest to show a few of these, and say a word or 
two in explanation of their peculiarities. 
The butterflies are for the most part open feeders, and 
are not in need of a special domicile to protect them from 
their enemies. They do their own protection either by the 
usual method of resembling the plant on which they live, 
like the larva of the small white butterfly, so hard to discern 
from the green nasturtium or cabbage leaf on which it lives ; 
or by the equally common means of being bright-coloured and 
nasty, like the large white butterfly larva, which, with its 
speckled and yellow-striped back, is so objectionable and con¬ 
spicuous an object in our kitchen gardens. But that common 
yet splendid butterfly, the Scarlet Admiral—which may be 
seen any sunny day now on the ivy blossom—has in the 
caterpillar stage a distinct domicile. If anybody will walk at 
the end of July along the nettle beds—say on the Woodstock 
Road—he will be pretty sure to see the leaves of some of the 
plants puckered or drawn-in rather near the top of the stem. 
If with a scientific disregard of being stung he will gently 
* Read before the Oxford Natural History Society, October 13th, 
1892. 
