w 

 O 

 X 



CERTAIN TAXONOMIC CHARACTERS OF GRYLLUS. 



TABLE 32. 

 OVIPOSITOR. 



35 



(4) NEW YORK. 



A special study of the crickets of Cold Spring Harbor, Long Island, 

 New York, was made with a view toward determining the effects of local 

 differences in the environment. The data presented here are from 

 material collected during September and October, 1904. For a descrip- 

 tion of the three areas from which collections were made see pages 17 

 and 18. The seriations are given in table 33. 



TABLE 33. Variation curves of the Cold Spring Harbor collections. 



These curves give the constants shown in table 34. 



