11 
abandoned. At the time of the appearance of the first brood of moths 
during the month of May the fruit of the peach is of considerable size, 
especially by the end of the month, but is green, hard, and densely 
hairy, and is probably rarely if ever chosen by the parent moths as a 
nidus for her eggs. The normal location of the eggs and the point at 
which larval development begins is indicated by the foregoing notes, 
and there is no reason to doubt but that at all seasons of the year 
larve develop in the new growth, entering normally at the axils of the 
leaves or in the stems of the green fruit. In these situations the eggs 
are placed and the young larvie construct their little oval chambers, 
which they abandon from time to time to make new ones, rarely doing 
enough damage in the later broods at any one point to be noticeable. 
As they attain larger size they travel more and often bore into fruit near 
the stem, where the greater exudation of gum and more serious character 
of the injury draw attention to them. In the case of the burrows in the 
twigs the more abundant new growth and more mature condition of the 
wood render the injury much less noticeable, nor are the results of 
the attacks so marked as in the injury to the new growth in April. 
Our records for the first suminer brood indicate a period of about 
six weeks as necessary for its complete development. The time neces- 
sary in the warmer months for the later broods is probably even less, 
and it is evident that there are certainly three broods of larv annually, 
if not four. ye See 
One of the important points remaining to be cleared up in regard to 
this insect is whether the larvee found in the crotches of the branches 
in late summer and fall come from eggs placed in these situations or 
are migrants from some other parts of the plant. Mr. Ehrhorn’s suppo- 
sition that the eggs were placed by the moth where the larval chambers 
are afterwards found is borne out by the small size of the larvie, which 
are not much larger than when newly hatched. The comparatively 
large size of the egg, and its striking appearance, and the lack of any 
attempt at concealment of it should enable one, where the insect is 
abundant, to clear up this uncertain feature without difficulty. 
THE STRAWBERRY CROWN-MINER A DISTINCT INSECT. 
The generally held belief hitherto that the lepidopterous crown-miner 
of the strawberry is the same insect as the twig-borer of the peach 
will have to be abandoned. If there were no other evidence on which 
to base this conclusion, the habits of the twig-borer, as now known, 
throughout the year are so peculiar and distinctive as to render very 
improbable the supposed strawberry infesting habit. 
That we have two distinct insects is also convincingly shown by a 
comparative study of the larvie from the strawberry and from the 
twigs of stone fruits, obtained from various parts of the country, made 
in connection with an examination of the published descriptions of 
larvee and their habits from both sources. So dissimilar are the larvee 
