March, 1905.] BUENO : HEMIPTERA FOUND NEAR NEW YORK. 45 



Although I have diligently sought this insect, I have not yet succeeded in taking 

 the adult. I have seen only two specimens, the ones recorded above. This would 

 appear to be very rare hereabout. 



Genus RANATRA Fabricius. 

 R. fusca de Beauvois. 



Central Park, New York City. This is commonly given in the text-books as the 

 common species in the East. I have, however, taken only the one specimen re- 

 corded, and have seen no others from this vicinity. 



R. quadridentata Stal. 



Central Park, New York City, March 12; Forest Pk., L. I., November 7 ; Ft. 

 Lee, N. J. , August 20 and 22, September 7 and 18 ; Putnam Co. , N. Y. , September 5 ; 

 Van Cortlandt Pk., N. Y. City, March 25 ; Railway R., Cranford, N. J., August 27. 



This form is by far the most abundant locally, as it seems to be throughout the 

 United States, to judge from material received from many quarters. 



R, kirkaldyi Bueno. (Ms.). 



Putnam Co., N. Y. , September 5. 



This is a very small species, with shorter air- tubes in proportion to the body than 

 either of the preceding. It will be described by me in a paper in preparation. I 

 have taken only one specimen of this, but have a large series sent in by a collector. 



Family NOTONECTIDvF. 



Genus NOTONECTA Linnaeus 

 N. undulata Say. 



Central Park, New York City, April 30 and March 11 and 12 ; Delair, N. T., 

 September I ; Bronx, New York City, September 9 ; Forest Park, R. I., November 

 7 ; Palisades, N. J., March 2 and 7, April 19, May I and 9, July 18, August 9, 

 September 7 and October 10 ; Putnam Co., N. Y., September 5 ; Staten Id., N. Y., 

 August 16, September 26 and October 25 ; Rahway R., Cranford, N. J., August 6 

 and 27 ; Ft. Lee Dist., N. J., September 18. 



This is by far the most abundant form throughout the United States and locally. 

 It occurs in common with the other species of the genus, from the time the ice melts 

 in spring until the late autumn. 



N. variabilis Fieber. 



Central Park, New York City, April 12; Delair, N. J., Lakehurst, N. J., May 

 23 and 26; Palisades, N. J., March 7, May 9, July 18, August 22, September 7 ; 

 Putnam Co., N. Y., September 5 ; Staten Id., N. Y., May 7 and 16, August 16, 

 September 26 ; Van Cortlandt Park, New York City, March 28, April II, 18 and 

 25, June 6, July 4 and 25, August 8, November 4, and October 1 ; Rahway R., 

 Cranford, N. J., August 20 and 27 ; Westfield, N. J., July 4, 9 and 16 ; Fort Lee 

 Dist., N. J., September 18. 



This is a good species, although Prof. Uhler has long been of the opinion that it 

 is conspecific with the preceding species. It also is very abundant where found. It 



