98 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
TaBLE 1V.—Third larval period of the peach and plum slug, Tallulah, La., 1910. 
Date of | Date of | Number} Third 
Lot No. second third ofindi- | larval 
molt. molt. viduals. | period. 
Days. 
JOS) So. Sadat ce Sa RES EE ae se scans Semele d Sok onde Domne ee eases Sept. 26 | Sept. 28 2 2.0 
i 8 2 Ee Ce ARR OE SAR cad cee ocL Raa Sapormciuasoseaderns Aug. 29 | Aug. 31 1 2.0 
UTD 7 eta eee wees ee s eae ae Stichetia eae Heo ee eee ee eter Sept. 23 | Sept. 25 5 2.0 
Sept. 26 4 3.0 
10 Py! RE SASS See A ea et a EE Re A ae Ps oe lhe dos: Sept. 25 16 2.0 
MIBN ss ccs cots s Seton bee cieactae seaman teesinee Cae ke teen ca eeee eee Sept. 26 | Sept. 28 1 2.0 
Totaland average. a3 54 sc dese aee co asen oon o soee Coe eas sees ee ee Capea naeiae 29 PAA 
TaBLeE V.—Fourth larval period of the peach and plum slug, Tallulah, La., 1910. 
Date of | Date of | Number! Fourth 
Lot No. third fourth of indi- larval 
molt. molt. viduals. | period. 
R Days. 
MO Rete FA oe Joc oie Soe ene SiS oe on gO acts eae eer ctereicteraine Aug. 20) Aug. 23 1 3.0 
TUDE er as PT SS a Soaks an ch iinesaicens aeabence teen esau ernee crm eeeeee Aug. 22 | Aug. 25 2 3.0 
1 DS Be hE Ae oS Aer oe ete ae een Airs eS pascse ache Sept. 28 | Oct. 1 1 3.0 
Oct. 2 1 4.0 
MDA ee. astoh me ides ga cles he tslasien See See Ee seen CELeE emcee eeeee Aug. 29 | Aug. 31 3 2.0 
TTD yf Rae ia ROAD i at mee Tee IE Re 2 LE I a a Sept. 25 | Sept. 27 1 1.5 
Sept. 26 | Sept. 28 1 2.5 
Sept. 29 1 3.5 
Sept. 30 3 4.5 
Oct. <1 2 5.5 
TEDOE Bcc Serciicrein eae sauces clonten ce Ones einstein eee Sept. 25 | Sept. 27 14 2.0 
Sept. 28 1 3.0 
108) eee aeRO! Ae See Ne Wi eRe RO or kT ASR oe oe Sept. 28 | Oct. 1 1 3.0 
Motaliandeaverageseas= = 5 = cee aseee eee neces ee eee ee ees See eee Ress pee aaa 32 2.8 
Tasie VI.—Total feeding period of the peach and plum slug, Tallulah, La., 1910. 
Date of Date of | Number} Total 
Lot No. ier fanin fourth | ofindi- | feeding 
BCE eeaniolte viduals. | period. 
Days. 
1 9.0 
2 9.0 
3 10.0 
4 11.0 
2 122.0 
1 8.0 
1 9.0 
1 10.0 
3 11.0 
2 12.0 
SUS See es COS RED ace case SORE oe eer eee Sept. /20)|22-dos--.. 1 11.0 
Motaliand‘averagel. =. 25252522 enee se ane eee eee eee eae Seer eee ate | 21 10.3 
1These 2 were developing during unusually cold weather for the season and are omitted from the 
average. 
THE PREPUPA. 
After molting for the last time the larva crawls or drops to the 
ground where it voids the entire contents of the alimentary canal, 
burrows into the soil from one-half an inch to 3 inches, and constructs 
