on 
New YorK AGRICULTURAL EXPERIMENT STATION. 24! 
Co., Syracuse, Onondaga, and points south in the Onondaga 
Valley. Doubtless there are many other localities in the State 
where this brood appeared that are not mentioned here. 
According to Marlatt! this brood also occurs in Wyoming Co., 
and in Pennsylvania in Allegheny and Washington counties. 
Date of first appearance.— The earliest date of the appearance 
of the adults of this brood which we have was June 1, when a 
few appeared near Victor, Ontario Co. But few emerged, how- 
ever, until June 4, when they appeared in swarms, increasing in 
numbers during the following two or three days. On June 9, the 
females were depositing eggs. Egg laying was continued actively 
during the following week and was observed as late as June 19. 
June 20 they had almost entirely disappeared. 
Localities in which the locusts were most ‘abundant.— The 
swarms of locusts were confined largely to woodlands and old 
orchards. Here and there a few appeared in cultivated fields, 
indicating that in previous years they had covered wider areas 
but had been reduced in numbers, probably by the cultivation 
of the soil. In the localities along Seneca and Cayuga lakes, 
especially the former, where the brood appeared, the local dis- 
tribution was sharply marked. They were found very largely 
in the wooded gulleys along the lake and in the orchards border- 
ing them. In a few instances they were also found in groves on 
high land. 
Evidence that the brood is decreasing in numbers.— Evidence 
that the brood is decreasing is furnished by its history. A num- 
ber of old residents state that the locusts were less abundant in 
1899 than 17 years previous. In the vicinity of Earls and Dres- 
den two old residents remembered them 34 years previous to 1899 
and one 51 years previous to that date. During the memory of 
these men the cicadas have become greatly lessened in numbers. 
The two previous swarms had appeared over much wider areas, 
extending from the lake back to the top of the hills, while the 
only areas occupied by the last swarm were back from the lake, 
and, as previously stated, confined largely to the gulleys. 
18UY S. Dept. Agr., Div. Ent., Bul. 14, n. s., p. 32. 
