THE LESSER PEACH BORER. 43 
of larvee which reach full growth and begin to pupate and emerge as 
moths in the late summer and early fall. In turn these early fall 
adults oviposit, producing a mixed generation of larve throughout 
the fall of the year; these pass the winter and mature the following 
spring. Hence two cycles of this insect are clearly indicated during a 
calendar year in the latitude of Georgia. A clearer conception of 
the probable occurrence of these two generations may be obtained 
by consulting Table IT. 
TABLE I1.—Generations of the lesser peach borer at Myrtle, Ga., 1905-6. 
Generation No. | Larve. | Pupe. Moths out. ior okerele 
Pe NVUMberas elas Septs LO—Miay fos...) Mar. 1-May 20 (Apr.).| Apr. 1-June 20 (May) .| 74 months. 
2. Summer ...:| Apr. 10-Aug. 1 (May | July 20-Oct.15(Sept.).) Aug. 15-Nov. 20(Sept.| 4; months. 
and June). | and Oct.). 
In Georgia, in 1906, the first pupa of what may be called the winter 
generation was found on February 27, and by the middle of March 
-they were common. A month later, in April, the adults of that gen- 
eration were common, continuing so throughout May and part of 
June. By the latter part of May the pupe became scarce, showing 
that by this date the winter generation was practically over. From 
that date on we conclude that the larve then present in the trees were 
practically all of the next, or summer, generation. By the last week 
in July pup were again found in numbers, and continued to increase 
well into September, when adults of the summer generation were ob- 
served ovipositing. The winter generation, therefore, became estab- 
lished mainly in the latter part of August and during the whole of 
September, and the larvee from eggs deposited then had ample time to 
obtain at least two months’ steady growth before being disturbed by 
cold weather. The foregoing statement is based on series of ‘speci- 
mens collected weekly throughout the entire season of 1906, from 
February to November, at Myrtle, Ga., by Mr. A. H. Rosenfeld and 
the author, combined with records obtained by Mr. James H. Beattie 
during the investigations in 1905 at Fort Valley, Ga. 
Observations made in the vicinity of Odenton, Md., and Washing- 
ton, D. C., show that the pup were present in the spring as early 
as the first week in April and that adults issued from these during 
the first half of May. The pupe continued present as late as May 8, 
but thereafter we have no records. Mr. Fred Johnson, of this Bu- 
reau, records seeing adults at North East, Pa., on May 29; and at 
Niagara, Canada, June 23, 1905, Mr. Quaintance found larve nearly 
or quite full grown, and pupe and adults were present. Bailey 
(1879) found the moths as early as May 25, in 1879, at Buffalo, N. Y., 
and made a general statement to the effect that they issue during 
June and July. Kellicott (1881) reports the same months for New 
York and Smith (1900) for New Jersey, and similar statements 
