March, I9I3-] Davis : Dragonflies OF New York City. 19 



C. maculatus Selys. 



Yaphank, N. Y., V (Engelhardt) ; Nyack, N. Y., VI; Ramapo, 

 N. Y., V, 31; Bronxville, N. Y., VI (Woodruff) ; Staten Island, V, 

 VI; Greenwood Lake, N. J., VII; Newfoundland, N. J., VII; Lake- 

 hurst, N. J., V, 22 (Engelhardt). Often found flying up and down 

 brooks. 



C. erroneus Hagen. 



Bear Swamp, Ramapo Mountains, N. J., VII, 18, 1910, c? (Chas. 

 E. Sleight). This is an addition to the New Jersey list. 



C. obliquus Say. 



Pine Island, N. Y., VI; PaHsades, N. J., VI (Engelhardt); Van 

 Cortlandt Park, N. Y. City, VI (Watson) ; Lake Hopatcong, N. J., 

 VI (Watson). On June 19, 1898, two were captured in Bronx Park, 

 N. Y. City, near to where the bear dens have since been located. 



Genus GOMPHOIDES Selys. 

 G. obscura Rambur, 



Found on several occasions in May and June flying up and down 



a shaded ditch by the side of the railroad track at Lakehurst, N. J. 



Wading River, N. Y., Deep Pond, Aug. 7, 1912. 



Genus HAGENIUS Selys. 

 H. brevistylus Selys. 



Long Island (Engelhardt) ; Newfoundland, N. J., V, VII. On 

 the 4th of July, 1897, two of these dragonflies were observed on 

 Jefferson Mt., near Newfoundland, N. J., engaged in chasing butter- 

 flies. One of them was particularly active, and every Papilio or 

 Limenitis that came near was pursued, but it was not successful in 

 catching any of them. 



Genus OPHIOGOMPHUS Selys. 

 0. johannus Needham. 



Hewitt, N. J., VI, 19, 1904. 



0. rupinsulensis Walsh. 



Dover, N. J., (C. W. Johnson, N. J. list). Ramapo Mts.. near 

 Halifax, N. J., several found near a stream. 



