REPORT OF THK STATE ENTOMOLOGIST 1902 113 



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 suffered to a less extent. 



Birch leaf Bucculatrix, Bucculatrix canadensisella 

 Chamb. The extensive depredations of this insect [pi. 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 

 vicinit}^ 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, 

 vfas 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 

 «'0. ; 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 



