OF PAPILIONACEOUS INSECTS. 45 
Professor Rennie mentions having picked up some 
specimens of the Gipsy Moth in the Netherlands, 
and enclosed them in chip boxes. On opening one 
of these some time afterwards, he found that one of 
the moths had deposited her eggs ; but, owing to the 
situation not being favourable, they were laid in the 
form of a wheel, of which her body was the radius, 
as represented in the following figure : 
The rim of this wheel was about a quarter of an 
inch broad, and regularly sloped like a candle shade, 
and had down laid all around it in an imbricated 
manner. Another of these captives, although in a 
box of the same size as the other, instead of forming 
a wheel, laid the eggs in a conical form, like a little 
mound. ‘The Professor conceives that this form 
might have been assumed in consequence of the 
moth, in all probability, having laid part of the eggs 
before being captured, as it did not contain above a 
sixth of the number which the other deposited. The 
same general slope was, however, preserved, and it 
was as regularly thatched as the other, as represented 
in the following figure : 
