97 
THe Peach Tree Lear-Rouuer. 
(Ptycholoma persicana, Fitch). 
Order Leprpoprmera. Family Torrricips. 
This species, which has also been known to economic entomo- 
logists under the name Lozotenia fragarie, has not been ascertained 
to occur in Illinois, its recorded localities being limited to New York 
and New England; neither has it been anywhere, as yet, reported 
especially destructive either to the strawberry or the peach, upon 
both of which it feeds. 
It appears early in the spring, during May and June, webbing 
and folding the leaves of the plants together, and feeding upon them 
while thus concealed. Within the clustered leaves it pupates about 
the middle of June, the moth emerging early in July. 
The larva is pale green, with a whitish streak along each side of 
its back, and a pale, dull yellowish head. The moth is said by Dr. 
Fitch, who described the species from the peach, to have the fore 
wings rusty yellow. varied with black, their basal third much paler 
tawny yellow; a large triangular white spot on the middle of the 
outer margin; and a transverse white streak forward of the middle 
of the hind edge, which is divided by the veins crossing it into 
about four spots, and is bordered on its anterior side by a curved 
black band. Width, 0.65 in. 
‘A more elaborate description may be found in the monograph of 
Dr. Packard, cited in a preceding article. 
2. Piercing the tissue and draining the sap. 
a. Forming a gall on the leaf stem. 
StrawBerrRY Lear-StTem Ga... 
Concerning this species, all the information which I have is con- 
tained in the following extract from Saunders’ “Insects Injurious to 
Brat” ; 
“This is an elongated gall, an inch or more in length, found on 
the stalk of the leaf of the strawberry near its base, produced by 
an undetermined species of gall-fly. Its surface is irregular and its 
color red, while the internal structure 1s spongy. If these galls are 
opened about the middle of July, there will be found in each, about 
the center, a small, milk-white, footless grub, semi-transparent, with 
a smooth, glossy skin, a wrinkled surface, and a few fine, short 
hairs. Its jaws are pale brown, and its length at this period is 
about one-sixteenth of an inch, the body tapering a little towards 
each extremity. ‘This insect doubtless changes to a chrysalis within 
the gall, from which the flies escape later in the season, or early 
the following spring.” 
