epidopterous larvae and pupae and their surroundings. 147 
3 in. deep by | in. wide) with glass fronts, at an angle of 
about 45°. Both larvae and pupae were kept in a strong 
north light. _ 
The hut in which the experiments were carried out 
was roofed with iron, and was generally a good deal 
warmer than the outside air. This probably had the 
effect of hurrying on the stages, for the larvae never 
attained a greater length than about 1% in. 
TABLE V. 
RECEPTACLE. COCOON, IF ANY, PUPAL COLOURS. 
Black. Scanty. | 1 light reddish brown, 3 | 
| | very dark. 
Dark green. | 3 cocoons of variouslvy- | 
coloured paper and , 
leaf. | 
| 
Darkest form. | 
White paper. | 2 cocoons of paper 1 darkest form, 1 greyish. 
and leaf. 
White calico. 1 cocoon of white Lightest form (cream- _ 
threads, ' coloured). 
| Bark and grey | 2 cocoons of bits of Fairly dark. 
_ lichen. | paper, ete. 
Dead oak 1 cocoon of leaves, Exact colour of leaves | 
| leaves. | (Fig. 3, 3a). 
L2 
