GRAPHOLITHIDS. 249 
the granules larger, and on either side there is a clear, white, 
oval space about one-third the length of the egg. In about 
two days more the outer edge of the center is of the same 
color as in the last stage, and inside this is a narrow, lighter 
band, while in the center is seen the form of a cylindrical 
larva larger at one end, and both ends slightly curved 
towards each other; and in one or two days more the whole 
form of the larva is visible, the head, thoracic and anal 
shield being black. The egg stage lasts from eight to eleven 
days. 
“When the young larva hatches it does not eat the shell 
of the egg, but goes on to the tenderest leaves, and almost 
immediately begins spinning a microscopic layer of silk, 
under which it eats the outer layer or epidermis of the leaf. 
The larva is then about three millimeters in length, of a 
creamy-white color, with head, thoracic 
and anal shields blackish-brown, and a few 
minute pale hairs on the body; the head 
is very large for the rest of the body. In 
a week the larva is nearly four millimeters 
Bee ee long, light vellowish-brown, with the head, 
ocellana Schiff. thoracic and anal shields dark-brown, and 
it eats minute holes through the leaf, its 
silken web now being visible to the naked eye. The larva 
gradually becomes a trifle more brownish, increases in size 
and enlarges its web along the side of the midrib. 
“Tate in fall the silken web is quite heavy and thick, 
and the larva deposits its excrements in little black pellets 
in the form of a tube under the web, within which it hiber- 
nates during the winter. Not unfrequently two leaves are 
fastened together by the silk of the web and sometimes a 
leaf is secured to a branch of the tree in the same manner. 
“About the first of May the larva measures seven milli- 
meters when resting, and eight when in motion. It is 
cylindrical in form, with the head dark brown and of medium 
size. The body is dark yellowish-brown, and the head, 
