THE STRIPED PEACH WORM. 9 
and none deeper. The larve in the rearing cages cocooned from July 
17 to August 9, but nearly full-grown larvee collected on sand cherry 
August 11 were cocooning from August 12 until September 14. The 
dates of cocooning for the season of 1916 are shown in Tables IV 
and V, and the length of the period in the cocoon for 17 individuals 
is shown in Table VI. The average length of the period in the 
cocoon was determined to be 12.4 days; the longest period, 21 days; 
and the shortest period,.9 days. 
TABLE VI.—Length of time spent in the cocoon by the first brood of the striped 
peach worm, 1916. 
Date of Date of 
Number . Number A 
= moth Days in : moth | Daysin 
Date of cocooning. ren ns; emer- | cocoon. Date of cocooning. ea emer- | cocoon. 
“| gence. *| gence. 
Rut hale eS eee 2| July 28 WE WP ANU NA PTS 5 eo aaroesos 1 | Aug. 11 
Litik72 Daa ees s 3 ug 12 DOP see ce sace 1 | Aug. 9 13 
uly? SEV SAT oe 2| Aug. 2 11 || July 28.. 1 | Aug. 18 21 
Osea Ep 1} Aug. 4 135} | ANI SALE ays ee 1 .do.. 17 
ulys2e Se 1} Aug. 6 1S :| | PAUSHOS Se AS ess ae Ie adons 15 
Uibihy 2s oes eee 1} Aug. 4 10 
juve 2oees ete 2|...do.... 9 Total....2... AU? al Se ASO RIE NEES 
Maximum length of time in the cocoon....................--.-----------00-- days.. 21 
Minimum length of time, im the\cocoom. 3. os -sc.sessssseo- sce ces sceeetonee cece do.. 9 
Average length of time in the Cocoon... ... 2-2 2..-sccs sce ecsssncccceceeteccccess do.. 12.4 
EXMERGENCE OF FIRST-BRoop MOTHS. 
TABLE VII.—Hmergence of first-brood moths of the striped peach worm at 
Benton Harbor, Mich., 1915. 
Date of emergence. | Number of moths. || Date of emergence. | Number of moths. 
Male. | Female. Male. | Female. 
SAG Nia Sea es 0 4 ae 0 3 
VANE ve bie ettsctsias 0 1 1 0 
IN oD ae aes eee 0 3 1 0 
PAUL Oe Tava trinhayn setae 0 4 0 2 
JNO ae SO Eee 0 3 1 1 
AVIS. AOE: eosee 0 9 1 0 
ENERO Eee ewees 3 1 0 2 
PATIO PAL DS Bo Saipan 2 0 2 0 1 
Aug. 14........-. 0 1 2 3 
9 40 
Table VII shows that first-brood moths were emerging rrom 
August 4 until September 12 in 1915, with the largest number on 
August 10. From 683 larvee collected on sand cherry July 28 only 
two moths subsequently emerged that season—one on August 28 and 
the other on September 9. The dates of emergence of first-brood 
moths in 1916 are shown in Table VI. 
