THE CODLING MOTH IN THE OZARKS. 29 
NUMBER OF MOLTS. 
A large number of larve were reared separately in pieces of apple 
in vials. Immediately after hatching they were transferred to the 
vials, and were examined daily, or at least every second day. At 
each examination they were changed to fresh food. 
Either the frequent disturbance or the lack of apple seeds in their 
diet caused the larve to develop very slowly and to become dwarfed. 
’ The mature larve were very much undersized, and some of the moths 
that developed from them were scarcely larger than adults of the 
lesser apple worm (Hnarmoma prunwora Walsh). 
The normal number of molts is apparently 6 (7 instars), though 
3 of the 12 larve that reached maturity molted 7 times (8 instars). 
The period of development was so much lengthened and the larve 
were so dwarfed that no conclusions can be given as to the normal 
length of the various instars or the size of the larva in each. 
In Table XXXYV are given the individual records (omitting meas- 
urements) of the 12 larve that reached maturity. 
TaBLE XXXV.—Number of molts of the codling moth—laboratory observations on 
larve reared in pieces of apple in vials. 
Molts. Dee 
ante 7 arva 
Individual | When dee Ba 
No. hatched. 
3 II. III. IV. Vv. VI. War, * || Reems 
ils5e Cees Aare diss) Ags Y= ese fs amin Sept. 2 | Sept. 9 | Sept. 16 | Sept. 26.|.......... Oct. 13 
7 aes Sea eaOObees =| 505 ace Aug. 28 | Sept. 1} Sept. 7 | Sept. 14 | Sept. 21 |.......... Oct. 6 
Deke Se eee eo = aaLOE S22 Aug. 23 | Aug. 29 | Sept. 4 | Sept..10 | Sept. 16 | Sept. 27 |.......... Oct. 15 
(eer. Pe Ose 26 el O seria sen ene DeEDUse 2h PSC plan S| Oepts LON ls see te Ieee oe Oct.) 7 
CSE Searasers LCOS eS Aug. 24 | Aug. 29 | Sept. 4} Sept. 11 | Sept. 17 | Sept. 27 |._........ Oct. 16 
OSs eee So bdo 5) Aug. 23 | Aug. 28 | Sept. 1] Sept. 8 Goze. Sept. 30 | Oct. 19 | Oct. 26 
(Scat eens = Aug. 18 | Aug. 24 | Aug. 29 | Sept. 3 | Sept.10 | Sept.19 | Oct. 3 |..........] Oct. 21 
eee anee Sept. 3 | Sept. 9 | Sept. 14 | Sept. 21 | Sept. 29 | Oct. 13 | Oct. 30 | Nov. 20 | Dec. 4 
OA eiccmtecs eo CO Wee ee d0:--s- ee COxeen «|= eijcc esc ae Oct. 2) Oct. 11 | Oct. 23 | Nov. 9] Dec. 2 
LO Sees iae,s doweas Septsor | seOtalovlee-saeenee NODe sn | POCin ts: | Othe 2bilee-cssecee Nov. 20 
thes Seeeeaee goss) Septet ado cael oe seen soe Octs 72 POet. 15) 1200s, 28 hose se- cee Nov. 27 
VS o Wopee dOssca- Sept. 8 | Sept. 13 | Sept. 20 | Sept. 28 aes esis OGtss. 20) |Pesctences Nov. 17 
NATURAL ENEMIES. 
On May 6, while bagging fruit and collecting codling-moth eggs, 
about a dozen specimens of a red mite (determined by Mr. N. Banks as 
Trombidvum sp.) were observed crawling about the twigs and leaves. 
By accident one of them got into the box of collected codling-moth 
eggs on leaves. On examining the eggs in the laboratory later, the 
mite was found in the act of eating one of them. The egg upon 
which it was operating was in the black-spot stage. When the mite 
had finished, the egg had the appearance of having hatched, except 
that the black head and cervical shield of the embryo remained visible 
underneath the egg shell. The mite was then allowed to attack a 
larva that was just issuing from the egg, having crawled nearly all the 
