The egg-laying habits of this insect previous to 1897 having been 
merely a matter of conjecture, special effort was made to get the facts 
concerning this feature of the life history. A number of moths reared 
in the insectary were confined 
about May 10 with peach twigs 8 
to 10 inches in length, of this year’s 
growth. The examination of the 
material was unfortunately too 
long delayed, but on May 28 it was 
found that many eggs had been 
deposited on these peach twigs, 
an egg having been placed appar- 
ently just above the base of the 
petiole of nearly every leaf. When 
examined, most of the eggs had 
hatched and the larvee had entered 
the twigs at or near the crotch 
formed by the leaf and twig, the 
point of entrance being indicated 
by alittle mass of brown excrement. 
The egg had evidently been 
placed in the protection formed by 
ry 
i 
\ 
TA wae 
Usa” Yo \ 
u 

Fic. 3.—Anarsia lineatella: a, moth with spread 
wings; b and c, same with wings closed, illus 
trating position normally assumed—all much 
enlarged (original). 
by the two little spurs at the base of the petiole. Subsequently many 
other eggs were obtained from other moths, and they were, tor the most 

Fic. 4—Anarsia lineatella; a, egg; 
b, young larva; c¢, eye; d, tho- 
racic leg of larva; e, anal seg- 
ment from above—all greatly 
enlarged (original). 
part, similarly situated, namely, around the 
base of the leaves. In one instance nine eggs 
were deposited around the base of a single 
leaf, six of them close together under one of 
the bracts at the base of the petiole and 
three in the depression or sear left by the 
second bract, which had dropped. 
The recently deposited eggs are white in 
color and iridescent, but before hatching 
become distinctly orange. They measure 
about four-tenths of a millimeter in length by 
two-tenths of a millimeter in breadth, are 
somewhat ovoid, and are lightly attached 
lengthwise to the twig by a glue-like mate- 
rial. Under a high power they are seen to 
be coarsely and rather regularly reticulated, 
as shown in the illustration (fig. 4, a). 
In confinement the moths live about ten 
days, and most of the egg-laying is in the first 
half of this period. The habits above described are those of caged 
moths, but it is reasonable to suppose that in a state of nature the eggs 
are deposited in much the same way, and this is rendered almost cer- 
