97 
! 
if 
The Peach Tree Leaf-Roller. 
f 
(Ptycholoma persicana, Fitch). 
Order Lepidoptera. Family Tortricidve. 
This species, which has also been known to economic entomo- 
iists under the name Lozotcenia fragarice , has not been ascertained 
occur in Illinois, its recorded localities being limited to New York 
d New England; neither has it been anywhere, as yet, reported 
>ecially destructive either to the strawberry or the peach, upon 
th of which it feeds. 
-t appears early in the spring, during May and June, webbing 
I folding the leaves of the plants together, and feeding upon them 
ile thus concealed. Within the clustered leaves it pupates about 
) middle of June, the moth emerging early in July. 
Che larva is pale green, with a whitish streak along each side o'f 
back, and a pale, dull yellowish head. The moth is said by JJr. 
ch, who described the species from the peach, to have the fore 
lgs rusty yellow, varied with black, their basal third much paler 
my yellow; a large triangular white spot on the middle of the 
;er margin; and a transverse white streak forward of the middle 
the hind edge, which is divided by the veins crossing it into 
)ut four spots, and is bordered on • its anterior side bv a curved 
ck band. Width, 0.65 in. 
^ more elaborate description may be found in the monograph of 
, Packard, cited in a preceding article. 
2. Piercing the tissue and draining the sap. 
a. Forming a gall on the leaf stem. 
Strawberry Leaf-Stem Gall. 
Concerning this species, all the information which I have is con¬ 
ned in the following extract from Saunders’ “Insects Injurious to 
lit”: 
‘This is an elongated gall, an inch or more in length, found on 
stalk of the leaf of the strawberry near its base, produced by 
undetermined species of gall-fly. Its surface is irregular and its 
3 r red, while the internal structure is spongy. If these galls are 
*ned about the middle of July, there will be found in each, about 
center, a small, milk-white, footless grub, semi-transparent, with 
mooth, glossy skin, a wrinkled surface, and a few fine, short 
rs. Its jaws are pale brown, and its length at this period is 
»ut one-sixteenth of an inch, the body tapering a little towards 
h extremity. This insect doubtless changes to a chrysalis within 
gall, from which the flies escape later in the season, or early 
following spring.” 
