between lepidopterous larve and their surroundings. 337 
IV. G. quercifolia. 
The larvz with green leaves and shoots were very 
varied, showing tendencies in the direction of all the other 
groups, but chiefly resembling the chequered black-and- 
white larvee with the black twigs of Turkish oak, although 
the ground-colour was not nearly so dark. A few tended 
towards the greater development of the light markings 
which was characteristic of the group with the lichen- 
covered sticks, while all of them approached the larvae 
with the brown stems in the dusky tint of the dark ground- 
colour. There was no reason for painting any of these 
larve, 
ARRANGEMENTS FOR HYBERNATION AND FINAL 
JOMPARISON OF THE QUERCIFOLIA LARVA 
BEFORE HYBERNATION. 
I. G. quereifola. 
October 3rd. Larvie with black twigs. It was evident 
that the larvae were ready to hy bernate. They had eaten 
very little, and some of them were spinning a foot-hold. 
The size was that shown on Plate XVII, figs. 1 to 3. A 
great change had taken place since the last comparison on 
September 21st: only 3 larve instead of 9 were now 
chequered black-and-white, 6 having become nearly as dark 
as 5 out of the 6 darkest members of the group. The 
white patches of the chequered individual painted on 
September 25th were now far duller and less conspicuous. 
The larvee of this and all the other series were specially 
arranged so as to test for the existence of any susceptibility 
to the colours of the environment during hybernation. All 
were enclosed in muslin sleeves upon a large hawthorn 
tree, with pink double flowers, in the garden of Wykeham 
House, Oxtord. It should be noted that the branches 
enclosed in the sleeves were very dark, although not so 
intense a black as the twigs of the Turkish oak. 
A. The 3 chequered black-and-white larvee were enclosed 
with an abundance of black twigs of Turkish oak. 
B. The 5 darkest were similarly placed with lichen- 
covered twigs. 
C. Six dark larvae, but not quite so dark as the last lot, 
were similarly enclosed with black twigs. 
