New York AGRICULTURAL EXPERIMENT STATION. 283 
Treatment.—Ag thé insect works within the leaf, arsenical or 
other sprays would have little if any effect. The only vulnerable 
point seems to be in the method of passing the winter. By 
destroying the fallen leaves, as by plowing them under, the 
insects within them will be destroyed, and thus the species held 
in check. 
TISCHBRIA MALIFOLIBLLA Golem. 
Orver Lepidoptera. Faminty Tineide. 
The mines of this species were very common in the leaves in 
the apple orchards examined at Albion and Geneva and were 
received from Brockport. At Albion at least forty per ct. of 
the leaves were infested. 
The mines are in the upper side of the leaf and are somewhat 
trumpet shaped. The small end is often curved and marked with 
crescents of white. The dead and dried leaf tissue turns reddish 
brown in sharp contrast to the green color of the healthy leaf. 
At Plate XLI, Fig. 1, an external view of a mine enlarged to 
twice natural size is shown. | 
The caterpillars feed and pupate in the same mine. Brunn’states 
that this species probably passes the winter within the mine in the 
larva state. Our observations were similar, except in one case, 
when on Oct. 29 a larva was found evidently about to pass to the 
chrysalis stage,as shown much enlarged at Plate XLI, Fig. 4. 
At Fig. 3 one of the mines cut open exposing the caterpillar is 
shown, and at Tig. 4 a single caterpillar. Both are much 
enlarged. But little is known of the life history of this species 
and the pupa has not been described. In this State we have 
found it in Ontario, Wayne and Monroe Counties, 

7Cornell Univ. Agr. Exp. Sta., 2d Rept., p. 156. 
