(( We) 
Braconid parasite far more clearly than the more crowded 
examples that he had sent before and had been exhibited to 
the Society by Prof. Poulton. 
He also exhibited two cocoons of the Lymantriid moth 
Euproctis lanaria, Holl. He had observed that, in the con- 
struction of the cocoon, the pupa itself was hidden in the 
lower part, close to the leaf upon which the structure was 
built, and that the larva spun above this foundation a spherical, 
thin-walled fabric which remained perfectly empty. The 
chrysalis itself was of a pale greenish colour and very well 
hidden within the yellow silk with which the larval hairs were 
interwoven. The upper portion of the cocoon was, on the 
other hand, free from hairs and transparent, so that an enemy 
could easily see into it. 
Prof. Poulton, after studying these Lymantriid cocoons with 
him in the Hope Department, had inquired of Dr. Jordan and 
Mr. E. Meyrick, F.R.S., but neither of these naturalists knew 
of any example at all similar to the ones now exhibited. Prof. 
Poulton had also written to Dr. Chapman who (Dec. 26, 1912) 
called his attention to the cocoon spun by the larva of P. 
auriflua, L., which, when going into hibernation, spins a very 
fair cocoon and then sheds its skin and spins another cocoon, 
leaving the cast skin in the outer one. Dr. Chapman also 
mentioned the cocoon of Orgyia aurolimbata, Gn., described by 
him in the “ Entomologist’s Record ”’ (xv, No. 5, 1903). In this 
species ‘‘ the interior of the female cocoon is furnished by the 
larva when constructing it with a longitudinal partition, separ- 
ating it into two chambers. One of these is occupied by the 
pupa, and when the moth emerges she leaves this chamber 
containing the empty pupa case and enters the other, and so 
is separated by the diaphragm or partition from the empty 
pupa case... .” Dr. Chapman also mentioned Hastula 
hyerana, Mill., which “ hibernates in its cocoon as a larva. 
After making the cocoon the larva rests for a time, then casts 
its skin and completes its cocoon in which the cast larval skin 
is embedded. Some months later the larva pupates. In 
spinning their cocoons, most larvae make an outer hammock 
in which the real cocoon is slung. This is a necessity to make 
a place in which the true cocoon can be laid down properly, 
