- 
( xevil ) 
bred from the three Papilios, demodocus, Esp., nieuws, L., and 
cenea, Stoll. The parasitic larva, after leaving the host, spins 
a thread almost 14 inches long, attached by one end to the 
twig of a tree or to a wall. At the lower end of this thread 
it constructs a parti-coloured cocoon—grey-and-black. There 
is another species of Deilemera I found in the Comoros that 
makes its cocoon in the same way. I fancy it feeds there on 
the small fig-trees, as I found the pupae only on those trees.” 
THE SpHeERIcAL Bopies ON THE CocooNns or THE TINEID 
Genus Marmara.—Prof. Poutton said that he had been 
shown by Mr. J. H. Durrant the spherical bodies scattered 
over the cocoon of the Tineid moth Marmara salictella, 
Clemens, and had no doubt that they were secreted by the 
larva and passed by the anus as in Dedlemera. It would be 
interesting to observe whether any of the common parasites 
of Tineids construct cocoons to which the spheres bear any 
marked resemblance. At first sight the appearance suggested 
is rather that of a mass of spiders’ eggs such as are often seen 
in chinks of bark. Here, too, it is important to ascertain by 
experiment whether spiders’ eggs are in any way specially 
protected. 
Although the Tineid spheres are much smaller than those 
of Deilemera, each of them is similarly made up of several 
bubbles, and the resemblance is so remarkably close that it 
is appropriate to quote in this place the observations that 
have been hitherto recorded concerning them. The references 
to Marmara have been kindly given by Mr. Durrant. 
Clemens wrote of J. salictella in 1863 (‘ Ent. Soc. Phila.,” 
ii, p. 7; reprinted in Stainton’s ed. of Clemens’ papers on 
“Tin. of N. Am.,” 1872, p. 212)— 
‘Tt leaves its mine at maturity to weave a white, semi- 
transparent cocoon within some crevice of the bark of the tree 
on which it feeds or upon the ground. The exterior of the 
cocoon is covered with little froth-like globules, which resemble 
minute pearls.” 
Busck wrote of the same species in 1903 (‘ Proc. Ent. Soc. 
Wash.,” v, p. 210)— 
“The writer has bred it for several seasons, and gave some 
notes before the Washington Ent. Soc., on its unique mode 
