924 Annual Report of New York 
CURRANT-WORM. THE EGOS. THE YOUNG LARVJ5. 
facts relating to its habits and economy have incidentally been 
stated which it will be unnecessary to particularly repeat now, 
when we come next to treat upon its transformations and describe 
the different forms in which it appears. 
The flies break forth from the cocoons and emerge from the 
ground, in our State, the latter part of April. The exact date of 
their beginning to appear will vary in different years, as the season 
is early or late, and will be a week or more earlier in the Southern 
than in the northern sections of the State. Everywhere some of 
them will come forth in season for the sexes to pair and the females 
to commence the deposit of their eggs just as the leaves of the 
gooseberry and currant are bursting from their buds and beginning 
to unfold. 
The eggs are placed on the underside of the leaves. Mr. Curtis 
states they are placed close by the side of the larger veins. Those 
which I have observed have mostly been glued lengthwise along 
the summit of the ridges formed by the larger veins. They are 
shining, watery-white and translucent, of a short cylindrical form 
with rounded ends. Before hatching they become more opake, 
and swell and increase in thickness but not in length. They hatch 
in six or seven days, in summer, but in the cool weather of early 
spring the period is probably longer. 
The young larvae when they come out from the egg shells are 
watery-whitish and translucent, six times as long as thick, and one 
tenth of an inch in length. Their bodies are cylindric with tho 
heads thicker, more shiny and pale dirty yellowish-brown, with 
three conspicuous pairs of feet placed on the breast. When they 
begin to eat, their bodies immediately acquire a green tint and their 
heads become smoky. They, on leaving the egg, distribute them¬ 
selves over the disk of tho leaf, avoiding its margin, and each one 
eats a small round hole through the leaf, whereby it becomes rid¬ 
dled with these holes. They continue eating the edge of the hole, 
enlarging it, and as soon as it is sufficiently large to receive them 
they stand in it, with their backs strongly bent. They move back¬ 
wards as they continue to eat, each one along the edge of its hole, 
enlarging it more and more, till the holes meet and become con¬ 
fluent and oblong, occupying the spaces between the veins, and 
being of different sizes, with two, three or more worms now eating 
along the edges of each hole, until it extends to the outer margin 
of the leaf, thus taking all or nearly all of the parenchyma of the 
