between lepidopterous larve and their surroundings. 333 
September 14th. Fifteen larve on black twigs, 2 
blackish, 13 black with white markings. 
September 16th. Fifteen larvae on black twigs. 
September 18th. Fifteen counted. 
September 21st. Fourteen larvee on twigs, and 1 little 
one on leaf. The larve were re-fed on September 26th 
and 30th. 
Il. G&. queretfolia. 
July 28th, 1893. Fifteen larvee of quereifolia placed with 
sticks profusely covered with lichen (probably Ramalina 
farinacea was employed thoughout) intermixed with their 
food-plant, hawthorn. They were re-fed and examined on 
the following dates. 
August 1st. One larva on lichen-covered stick ; all the 
others on leaves and leaf-stalks. All blackish-grey in colour. 
August 5th. Twelve larvee on lichen-covered sticks; 3 
on food-plant. 
August 9th. Fourteen larve on lichen-covered sticks ; 
1 on food-plant. 
August 14th. Fourteen larvee on lichen-covered sticks. 
Colours black with white and grey markings; the latter 
larger than on the larvee of the other experiments. 
August 19th. Thirteen larvee on sticks; 1 on food- 
plant. 
August 22nd, Thirteen larvie on sticks. 
August 26th. Thirteen larvee on sticks. 
August 31st. Thirteen larve on sticks. The white 
and grey markings had now developed to a much greater 
extent. 
September 4th, Thirteen larvee on sticks. 
September 9th, Thirteen larve on sticks. 
September 14th. Twelve larve on sticks Colours 
white and grey and black, except in the case of 2 larvee 
without any black. 
September 16th. Twelve larvee counted. 
September 18th. Twelve larve on sticks. 
September 21st. Nine larvie on sticks; 3 on the twigs 
of hawthorn. At this time of the year it was almost 
impossible to get a sufficient quantity of the green shoots 
of the hawthorn, so that darker twigs were sometimes 
included, and upon these the larve occasionally rested. 
The larve never rested upon the lichen itself, but on the 
surface of the bark between the masses. 
