50 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
The total time in the cocoon, from the date of full-grown larvee 
leaving the fruit to the emergence of the moths, varies from thirteen 
to thirty days, although normally it is about seventeen days. Seventy 
per cent of all moths emerged between thirteen and eighteen days 
after the larve left the fruit. 
Taking the normal or average figures for each stage, the complete 
life cycle requires approximately six weeks, but many individuals 
complete the life cycle in thirty days in early summer. During the 
period from August to October some individuals required as high 
as forty to fifty and a few to sixty days. 
DESCRIPTION OF EGG. 
Egg: Size, 0.53 to 0.70 mm. long by 0.51 to 0.55 mm. wide; oval 
in outline, varying to roundish, shghtly convex, and covered with a 
network of irregular ridges. At time of deposition it is pearly white, 
and resembles very closely in general appearance the egg of the 
codling moth, except for its smaller size, the ridges being somewhat 
closer together and not so prominent as with the latter. (See PI. III, 
fies) 
The eggs assume a yellowish cast one or two days after deposition, 
shortly after which a red ring appears; the black head of the larva 
usually appears in four days. 
Moths confined in rearing cages deposited eggs on both sides of 
the leaves, but mostly on the upper surface on the fruit, stems, and 
on the glass door and wooden uprights of the rearing cage. 
PARASITES. 
Only one parasite is recorded in literature from this species, viz, 
Mirax grapholithe Ashm. During the past season a specimen was 
reared from a larva infesting apple, which has been determined by 
Mr. H. L. Viereck as Phanerotoma, n. sp. 
CONTROL MEASURES. 
The usual treatment practiced against the codling moth has so 
far served to very effectively keep in check serious injury by this 
species. 
aSince this paper was submitted for publication the egg stage has been well 
described by E. P. Taylor in Journ. Econ. Ent., June, 1909, p. 237. 
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