9°) RErPoRT OF THE DEPARTMENT OF EnrvroxwoLoGY OF THE 
economic entomology seldom ,occurs in sufficient numbers to 
attract much attention. One of the earliest references is by 
Brunn', who in 1888 found it in apple leaves in Tompkins County, 
but not in sufficient numbers to do material injury. During the 
past season we have received specimens from Monroe and 
Orleans Counties. Its distribution in the United States is indi- 
cated by Forbes’ report? in which he states that it is widely 
distributed in Illinois, and-in addition to New York is found in 
Colorado, Kentucky, Michigan and Massachusetts. 
Appearance in Western New York in 1900.—This species was 
first brought to the writer’s attention early in October, when 
some infested leaves were received from Brockport. The corre- 
spondent stated that nearly all the apple orchards in the vicinity 
of Brockport were badly infested. October 29 an infested apple 
orchard at Albion was examined. On nearly every tree two- 
thirds or more of the leaves were distorted by the mines of the 
larve. In many of the leaves from two to four mines were 
found. Most of them were old, indicating that the larve had 
been working in the leaves several weeks. The owner of the 
orchard stated that he had first noticed them about the middle 
of October. In the vicinity of Geneva a number of apple 
orchards were mildly infested, but no case of serious infestation 
was found. 
Notes on life history and habits of the larve.—The life history 
of this species has not been fully determined. Probably the 
most complete account is by Forbes,’ who states that the eggs 
are laid on the leaves, and that the young caterpillars feed on 
the parenchyma. When full grown they leave their old mines 
and form new ones in which to pupate and pass the winter. No. 
cescription of the egg is given, and the time of egg laying is 
not stated. No eggs were found on the branches received, and, 
although a careful search was made, none in the orchards at 
Cornell Univ. Agr. Exp. Sta., Second Ann. Rept. (1883), pp. 155-157. 
*Wifteenth Ann. Rept. State Ent., LL, p. 59. 
*Tifteenth Ann, Rept. State Ent., TIL, p. 57. 
