REPORT OF THE STATE ENTOMOLOGIST 1901 791 



line at a] are very thick and doing considerable damage. 

 July 17. 



Oswego county (0. D. Cook, Oswego Center) — Appletree tent- 

 caterpillars [Clisiocampa americana], bud moths 

 [Tmetocera ocellana] and cigar case-bearers [C o 1 e o- 

 phora fletcherella] appeared about the time the buds 

 began to develop, the two former being abundant, the tent-cater- 

 pillars being exceedingly so. No forest tent-caterpillars 

 [Clisiocampa disstria] have been observed thus far. 

 Plant lice [Aphis mali] are abundant on appletrees, and 

 many cigar case-bearers can be found. May 20. Currant worms 

 [Pteronus ribesii] and cutworms are numerous and 

 causing considerable injury. Plant lice are very abundant on 

 plum, pear and apple trees. Tent-caterpillars have not caused 

 much injury to the trees. The cold, wet weather has retarded 

 the development of insect life. June 5. Hessian fly [C e c i- 

 domyia destructor] has caused considerable damage in 

 this vicinity. June 19. The forest tent-caterpillar has been 

 very destructive in Yates county, the woods about Penn Yan 

 being brown and bare in places from their work. The appletree 

 tent-caterpillar has also been quite injurious about Penn Yan. 

 July 8. 



Otsego county (L. L Holdredge, Oneonta) — Willow and cabbage 

 butterflies [Euvanessa antiopa and Pieris rapae] 

 have made an early appearance this season, and the currant 

 plant louse [M y z u s r i b i s] is present in great numbers. 

 May 6. i 



Queens county (C. L. Allen, Floral Park) — Cabbage butterflies 

 [Pieris rapae] appeared in large numbers about May 10. 

 The rains have destroyed nearly all of them, however. Potato 

 beetles [Doryphora 10-lineata] are less numerous than 

 usual. June 21. The destructive pea aphis [Nectarophora 

 p i s i] appeared about June 18, and thus far it has done but lit- 

 tle damage. At the present time there are few or none to be 

 seen, the severe rains having apparently destroyed them. July 

 9. Fall webworms [Hyphantria cunea] appeared in im- 



