-1286] Gerridae 427 



Bueno, Trans. Am. Eut. Soc, xxxvii, p. 244, 1911. 



Hygroirechus Stsil, Of. Vet. Akad. Forh., xxv, p. 395, 1868 (type nnjas 

 Piiton, Synop. Ileter. Fr., i, p. 154, 1879. DeG.). 



Uhler, Stand. Nat. Hist., ii, p. 267, 1884. 



1283. Gerris remigis Say 

 Say, Hetor. N. Harm., p. 35. 1832; Fitch reprint, p. 806; Comjil. Writ., i. p. 362. 

 Uhler, Hayden's Surv. Terr., Eept. for 1871, p. 422, 1872, Hygrotrechiis. 

 Uhler, Bui. U. S. Geol. Geog. Surv., i, p. 335, 1876; iii, p. 453, 1877, Hygro- 

 Uhler, Wheeler's Eept. Chief. Eng. for 1877, p. 1331, Hygrotrcehus. [trechm 

 Uhler, Proe. Bost. Soc. Nat. Hist., xix, p. 435, 1878, Hygroirechus. 

 Uhler, Stand. Nat. Hist., ii, p. 267, fig. 322, 1884, Hygrotrechus. 

 Provaneher, Pet. Faune Ent. Can., iii, p. 195, 1888. 

 Van Duzee, Bui. Buf. Soc. Nat. Sci., v, p. 184, 1894, Hygrotrcehus. 

 Gillette and Baker, Hemip. Colo., p. 60, 1895, Hygrotrcehus. 

 Champion, Biol. Centr. Am., Heter., ii, p. 145, 1898. 

 Bueno, Jl. N. Y. Eut. Soc, xiii, p. 40, 1905. 



Van Duzee, 20th Kept. N. Y. St. Ent., p. 550, 1905, Hygrotrcehus. 

 Bueno, Jl. N. Y. Ent. Soc, xvi, p. 233, 1908. 

 Smith, Cat. Ins. N. J., edn. 3, p. 151, 1910. 

 Bueno, Trans. Am. Ent. Soc, xxxvii, p. 246, 1911. 

 ■\aptera Walker, Cat. Heter., viii, p. 165, 1873. 



Localities: Quebec, Out., Me., N. H., Mass., Conn., N. Y., N. J., 



Pa., Md., N. C, Ga., La., Mich., 111., Colo., Texas, N. Mex., 



Ariz., Calif., Ore. (Mexico, Centr. Am.) 



1284. Gerris orba Stal 

 Stal, Freg. Eugen. Resa, Ins., p. 264, 1859. 



Van Duzee, Trans. San Diego Soc Nat. Hist., ii, ]>. 32, 1914, H ygrotrcehus. 

 Van Duzee, Univ. Calif. Publ., Div. Ent. Tech Bui., i, p. 235, 1916. 

 Localities: Calif. Ore., Nev. 



1285. Gerris conformis T"hl. 



Uhler, Proc Bost. Soc Nat. Hist., xix, p. 435, 1878, Hygroirechus. 

 Bueno, Jl. N. Y. Ent. Soc, xiii, p. 40, 1905; xvi, p. 233, 1908; xviii, p. 31, 

 Smith, Cat. Ins. N. J., edn. 3, p. 151, 1910. [1910. 



Bueno, Trans. Am. Ent. Soc, xxxvii, p. 247, 1911. 

 Parshley, Psyche, xxi, p. 144, 1914. 



Localities: Me., Mass., N. Y., N. J., Md., N. C. (Mexico.) 



1286. Gerris robusta (Uhl.) 

 Uhler, Am. Jl. Sci., ser. 3, i, p. 105, 1871, Hygroirechus. 



Uhler, Proc Calif. Acad. Sci., ser. 2, iv, p. 288, 1894, Hygrotrcehus. 

 fCliampion, Biol. Centr. Am., Heter., ii, p. 146, 1898. 

 Bueno, Ent. News, xxiv, p. 21, 1913. 



Localities: Calif. (Mexico.) 



Subgenus Gerris Fabr. 

 Kirkaldy, Trans. Am. Ent. Soc, xxxii, p. 155, 1906. 

 Bueno, Trans. Am. Ent. Soc, xxxvii, p. 244, 1911. 



Limnotrechus Stal, Of. Vet. Akad. Forh., xxvii, p. 395, 1868. 

 Uhler, Stand. Nat. Hist., ii, p. 268, 1884. 

 Uhler, Check List, p. 26, 1886. 

 I'uton, Cat. Hemi]). Palao., ]>. 37, 1886. 



