REPORT OF THE STATE ENTOMOLOGISrT 1902 1138 
appointed by the Bavarian government to discuss and advise 
measures to prevent the further spread of this species. The 
situation was so grave that the German government in 1891 
appropriated $350,000 to fight this pest, most of which was 
expended on banding with an insect lime. 
Walnut worm, Datana integerrima Gr. & Rob. This 
is our most common species belonging to the genus and one which 
is annually present in greater or less numbers in the western 
part of the State. It defoliated many butternut and walnut 
trees in Genesee county during last summer, as reported by 
Mr J. F. Rose, of South Byron; and our observations showed that 
it was also extremely abundant in Chautauqua county, where a 
considerable number of trees suffered severely from its ravages. 
Some of the smaller and worse infested trees lost most of their 
foliage, while the larger ones suifered to a less extent. 
Birch leaf Bucculatrix, Bucculatrix canadensisella 
Chamb. The extensive depredations of this insect [pl. 6, fig. 3] 
in 1901 were noticed in a previous report. The species has not 
been quite so abundant during the past season, though in the 
vicinity of Karner a large proportion of the birches were prac- 
tically skeletonized. State botanist Peck has also informed the 
writer that it was exceedingly injurious in the vicinity of Lake 
Placid. The work of the pest was so general in that section that 
clumps of birches could be recognized at a distance by their 
uniform brown color. } 
17 year cicada, Cicada septendecim Linn. The brood 
of this insect, due to appear in New York State the present year, 
was a very limited one; and the following localities, kindly com- 
municated to me by Mr Chester Young, of Ellenville, are placed 
on record. ‘The insects were observed by him at Wantagh, Nassau 
co.; also between Massapequa and Amityville, between Sayville 
and Oakdale, east of Patchogue to Brookhaven, and also to the 
north of Medford and Holtsville, and a small brood northeast of 
Riverhead, all in Suffolk county. 
The writer has been unable to verify the occurrence of the insect 
in either Monroe or Niagara counties, where it had been reported 
in earlier years. 
Household insects ; 
Webbing or southern clothes moth, Tineola biselliella 
Hummel. This species is a southern form, which is stated by 
