New YorK AGRICULTURAL EXPERIMENT STATION, 309 
show first molt until October 1, while nearly al] the other half 
showed the second molt on the same date. The majority of the 
scales were dark gray in color at the time of first molt. 
Lot 2 consisted of six larvz born September 5. They showed 
first molt September 19. 
Lot 3 consisted of one larva born September 25. October 6 
showed first molt. The scale at time of first molt was white 
with white central nipple. 
Lot 4 consisted of 150 larve born September 3. October 8 
two individuals showed first molt. In both cases the scales 
were black. October 12 the same specimens showed second 
molt. On this date, also, all of the males showed second molt 
and the lateral projection of the scale was becoming apparent. 
Up to the time of writing, December 31, the remaining larve 
have not molted, but are dormant in the black stage. 3 
Lot 5 consisted of one larva born October 5, first molt October 
30. At the time of molting the scale was light gray in color 
with crater-like depression at the center. To December 31 there 
is no trace of a second molt. The insect is now dormant. 
Lot 6 consisted of ten larve born September 11. They were 
on a young apple tree in the insectary. October 12 no appearance 
of first molt. October 26 one female had passed second molt. 
The remainder are dormant (December 31) without showing first 
molt. 
Lot 7 consisted of one larva born September 25. By October 
14 it had passed the second molt. At this time the white central 
tuft still remained. By October 25 it had disappeared. The 
first and second molt-areas were dirty yellow and the remainder 
of the scale gray. 
Lot 8 consisted of five larve born August 25 and placed on 
young apple trees in the insectary. October 5 all showed second 
molt and were characterized by a central light-yellowish area 
and black band toward margin. October 7 a number of larvee 
were born from these females. 
Lot 9 consisted of one larva born August 31. There was no 
