ENTOMOLOGICAL NEWS. 351 
les and seventeen males (six slides) and five females 
»s (six pins) from the same series have been marked 
Sad are*in the collection of the Massachusetts Ag- 
‘al College, as are also slides of the early stages. 
sct may ultimately prove to belong to another genus, 
Dr. Felt (in litt.) in referring it tentatively to 
a 
LIFE HISTORY. 
‘The adult insect emerges from the ground from May 1 to 
ll have disappeared by June 1. In the spring of 1908, the 
or five adults May 4, and by May 11 the insects were found 
, ‘ ¢ tree in thousands, being so numerous that it was only neces- 
0 sweep an open cyanide jar over the top of and through the grass 
in all the specimens desired. The adults appear just as the leaves 
o unfold. For a time, after emerging, large numbers will be 
wi the early morning and on wet days especially, under the tree, 
ut a as it gets warmer and the dew dries off, they rise among the 
They have a feeble flight, however, and do not fly out beyond 
of the tree. When the leaves are one to two inches long, the 
to the leaves and begin to lay their eggs, for the most part 
he under side. 
ge: - eggs are laid without any regular order, attached to the 
the posterior pole and placed diagonally to the plane of the 
is minute, appearing to the eye like a reddish 
tuberance. Under the microscope it is seen to be almost perfectly 
: , 27 mm. long and 09 mm. wide. The surface is smooth and the 
"egg shell transparent, the reddish color more intense at one end, being 
due to the larva inside. Most of the eggs are scattered irregularly 
_ betw the veins on the lower surface, but a few are generally laid, ap- 
_ parently by chance, on the upper side. From fifty leaves, an average 
of ry nty eggs was obtained for cach, with not over six on the upper 
pal but the total number varied from forty to one hundred and 
twenty. On one leaf, an inch and three-quarters of an inch wide, 
there were two hundred and eighty-one eggs on the lower su:face and 
One hundred and seventy-five on the upper. This, however, is an 
sonal case. 
L ‘The larva hatches in from four to six days, the time varying 
with the weather. The body is pale orange, the head a shade darker. 
Length 27 mm.; width .1o mm. They go at once to the edge of the 
‘Teaf, or to any hole in it, and begin to feed on the upper surface. 
After about four days of this feeding, the edge beings to curl over 
"on to the upper surface, forming a roll, the upper side of which becomes 
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surrey 
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