March, I9I3-] Davis : Dragonflies OF New York City. 23 



Genus EPICORDULIA Selys. 

 E. princeps Hagen, 



Greenwood Lake, VI, VII (Watson) ; Newfoundland, N. J., VI, 



VII; Hopatcong, N. J., IX, 14 (Dr. Calvert, N. J. list) ; Singac, N. J., 



VI; New Brunswick, N. J., VII (Coll. N. J. Agri. Exp. Sta.) ; N. Y. 



City, VI (Woodruff). 



Genus NEUROCORDULIA Selys. 

 N. obsoleta Say. 



Lake Hopatcong, N. J., VI, VII, IX (N. J. list). 



Genus HELOCORDULIA Needham. 

 H. uhleri Selys. 



Newfoundland, N. J., V, 28; Lakehurst, N. J., V, 24. 



Genus TETRAGONEURIA Hagen. 

 T. spinosa Hagen. 



Great Notch, N. J., V, 5 (Dr. Love, N. J. list) ; Old Bridge, N. J., 



IV, 23. 



T. spinigera Selys. 



Greenwood Lake, N. J., VI, 30 (Watson) ; Newfoundland, N. J., 



V, 28 (Davis). This is an addition to the New Jersey list. 



T. semiaquea Burmeister. 



Yaphank, N. Y., V, 29 ; Ramapo, N. Y., V, VI ; Ramsey, N. J., VI ; 

 Newfoundland, N. J., V; Lakehurst, N. J., V, VL 



T. cynosura Say. 



Pocantico Hills, N. Y., VI (Woodruff) ; West Point, N. Y., VI; 

 Ramapo, N. Y., V; N. Y. City, Wall St., VI (Woodruff); Staten 

 Island, V, VI, VII; Hewitt, N. J., VI. On May 28, 1910, there was a 

 remarkable gathering of this species, together with an occasional 

 spinigera and semiaquea, along the road leading from Newfoundland, 

 N. J., to Cedar Pond. The air was full of these dragonflies, and on 

 one small dead bush we counted twenty-two individuals, and there 

 were other bushes and stems of plants that also had a great many rest- 

 ing upon them. 



Genus DOROCORDULIA Needham. 

 D. lepida Hagen. 



Jamesburg, N. J., VII (Daecke, N. J. Hst) ; Lakehurst, N. J., V, 

 VI. 



