Additions to the List of Staten Island Orthoptera 1 



By William T. Davis 



With the additions here recorded the list of Orthoptera so far 

 collected includes ninety species and named varieties. The orig- 

 inal list was published in Entomologica Americana, 5 : 78. Ap.. 

 1889, since which time additions have been noted in the Proceed- 

 ings of the Natural Science Association of Staten Island, and in 

 these Proceedings. 



As in every branch of zoology the variable forms are of much 

 interest and there are several Orthoptera native to the island 

 that might be considered as either species or varieties with ap- 

 parently equal propriety. All of the forms, however, may be 

 separated from one another by at least some characters, and so- 

 it is quite proper that they should be named. 



Melanoplus tribulus Morse. July, September. 



Scudderia texensis S.-P. August, September. 



Scudderia furcata Brunn. August, September. 



In the original list, 1889, printed before Mr. Scudder's revision 

 of the genus was published, 5". curvicanda De Geer was given. 

 While I have found this species at Jamesburg, N. J., and while- 

 it no doubt occurs on the island it must be omitted from the list 

 for the present. 



Xiphidium ensiferum Scudder. Some specimens have been 

 collected on the island, which are doubtfully referred to this 

 species, and which may be only a large form of X. brevipcnne. 



Xiphidium strictum Scudder. This species was found at Ar- 

 rochar in 1904 by Mr. Lewis B. Woodruff. In September, 1908, 

 numerous examples were found on the dry and rather barren hill 

 where it occurs most numerously. While nearly all of the indi- 

 viduals have abortive tegmina and wings about three or four 



1 Presented April 17, 1909. 



'93 



