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tain by the great regularity noted in the manner of their deposition. 
In but one or two instances were the eggs placed in other situations— 
one being placed on the upper surface of a leaf close to the midrib, and 
two together placed in a groove at the side of the base of the leaf. 
From eggs deposited later than those first mentioned, viz, about 
June 3, larve appeared June 15, indicating a period of about twelve 
days between the laying of the egg and its hatching. 
The newly hatched larvee measure about 1 millimeter in length and 
are of a very pale yellow color, with the head and cervical and anal 
plates black and the thoracic legs dusky. When first noted they had 
excavated channels somewhat longer than themselves and about twice 
as broad into the twigs, the entrance being marked by a smali mass of 
excrement. By June3 most of the older larve had abandoned their orig 
inal burrows and were constructing new ones in similar situations on 
fresh branches of the peach, with which they were from time to time sup 
plied. This they continued to do, viz, to construct new burrows every 
few days until they were full grown. On June 23, of the three remain- 
ing individuals of this lot of larva, one had already pupated in a folded 
leaf and the other two were fully grown and about ready to transform, 
which they both did before the end of the month. 
About the end of June some peaches were received from Mr. Ehrhorn, 
said to’ be infested with the second brood of larvae. Some of the 
peaches had been bored into a little way near the stem by what was 
evidently, from the size and nature of the burrows, nearly full-grown 
larvee of the second brood. One of these was found, and also one pupa. 
On further examination, however, it was discovered that the larvie of 
what is undoubtedly the third brood (the second of the summer broods) 
were present in numbers, not in the fruit, but in the short stems of the 
fruit, which at this season are green and somewhat succulent. In these 
stems they had made their little chambers not unlike those in the twigs 
above described or those in the crotches in the fall, except that they 
were for feeding purposes and not lined with silk, as are the latter. 
Others were also found at the base of the leaf stalks, just as we had 
been finding them in our breeding cages. 
We were unable to carry our breeding-cage material farther than this 
point at Washington, D. C., and Mr. Ehrhorn was unable to furnish 
additional supplies, but he writes that he found the minute larvee in 
the crotches of the trees as early as August 21. It would seem from 
this last and very important observation that some, at least, of the 
fourth brood of larve, if not all of them, go into winter quarters, and 
at a period much earlier than would have been supposed. 
These facts go a long way toward clearing up the life history of this 
insect, and indicate a much more uniform habit in the different broods 
than has hitherto been supposed. 
The old idea that this insect is double-brooded, the first brood living 
in the twigs and the second brood affecting the ripening fruit, must be 
