THE LESSER PEACH BORER. 43 



of larva; Avhich 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 larvaj throughout 

 the fall of the year; these pass the winter and mature the following 

 spring. Hence two C3^cles 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 II. 



Table II. — iioicmtiouH of the lesser praeh horcr at Miirtlc (la.. l!Ki',-fi. 



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 pupa* became scarce, showing 

 that by this date the winter generation was practically' over. From 

 that date on we conclude (hat the larva' then present in the trees were 

 practically all of the next, or sunnner, generation. By the last week 

 in July pupa' 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 larva^ from eggs. deposited then had ample time to 

 obtain at least two months' steady groAvth before being disturbed by 

 cold weather. The foregoing statement is based on series of speci- 

 mens collected weekh' throughout the entire season of 1906, from 

 February to November, at Myrtle, Ga., by Mr. A. H. Kosenfeld and 

 the author, combined with records obtained b}^ Mr. James li. Beattie 

 during the investigations in 1905 at Fort Valk\v, Ga. 



Observations made in the vicinity of Odenton, Md., and Washing- 

 ton, D. C, shoAv that the pupa^ 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 pupa* continued present as late as May 8, 

 but thereafter we have no r-ecords. Mr. Fred Johnson, of this Bu- 

 reau, records seeing adults at North East, Pa., on May 29; and at 

 Niagara. Canada. June 2;^>, 1905. Mr. Quaintance found larva^ nearly 

 or quite full grown, and pupa' 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 



