se P t.,i 9 °5] Bueno : Notonecta of North America. J53 



1900. Lugger, Bull. 69, Ent. Div., U. of Minn., Agr. Coll. Exp. Sta., p. 15. 



1901. Champion, Biol. C.-A., Rhynch., vol. II, p. 370, tab. 22, fig. 10, male 



1901. Howard, Insect Book, p. 275. 



1902. Bueno, Jour. N. Y. Ent. Soc, vol. X, pp. 231 and 233. 



1904. Kirk., Wien. Ent. Zeit. , pp. 94, 95 and 132. 



1905. Bueno, Jour. N. V. Ent. Soc, vol. XIII, p. 45. 

 N. americana. 



17S9. Gmel., in Linne Syst. Nat., ed. XIII, p. 21 18.* 

 1853. Herr. -Sch., Wanz. Ins., IX, p. 44, pi. 294, fig. 902 (nee Fabr).* 

 N. punctata. 



1851. Fieb., Abh. Bohm. Ges. Wiss. (5), VII, p. 476 (in part). 

 18S6. Uhl., Ch. List, p. 28. 



N. variabilis. 



1S51. Fieb., 1. c., p. 477 (in part). 



1856. Guer., in La Sagra's Hist, de Cuba, vol. VII, p. 176.* 

 X. virescens. 



1852. Blanch., in Gay's Chile, Zool., vol. VII, p. 233.* 

 N. pa ilipe's. 



1881. Leth., Ann. Soc. Ent. Belg., vol. XXV, p. 13 (nee l'abr. ). 



Description. — " Head diverging curvedly (varying in degree) from the synthlip- 

 sis, which is not quite two and a half times less wide than the vertex. Pronotum 

 very similar to that of N. glauca Linne, but the humeral margins as a rule not distinct. 

 Scutellum not quite one fourth shorter than the metanotum, varying in color from pale 

 luteous to black, with divers intermediate arrangements of the two colors ; similar 

 hemelytral markings occurring with dissimilarly colored scutella and vice versa. 

 Metanotum varying from luteous to black, with three or more dark castaneousst ripes ; 

 scutellar margin luteous. Hemielytra exceeding variable, giving rise to a number of 

 well-marked varieties, though these are linked together by intermediate forms." 

 (Kirk., Rev., p. 410.) 



Long., 10 to 13 mm., lat. 3 to 4 mm. 



Distribution. — My collection : Wood's Holl, Mass., Providence, R. I. ; Long 

 Island, N. Y., Staten Id., N. Y. ; New York City, N. Y. ; Putnam Co., N. Y. ; 

 Palisades, Rahway R. and Delair, N. J. ; Raleigh, N. C. ; Baltimore, Md. ; Wash- 

 ington, D. C. (also colls. Heidemann and U. S. N. M. | ; Laval Co., Quebec, 

 Canada ; Lake Forest, Chicago and Urbana, Ills. ; Onaga and Douglas, Kansas ; 

 Paige, Texas; Phoenix, Arizona; Bearfoot Mts., B C. ; Dilley, Oregon ; Pasadena, 

 Salton, and Three Rivers, California; Moscow, Idaho (coll. Van Duzee). Collec- 

 tion Heidemann : Maryland, Texas, and St. Kitt's, W. I. Collection U. S. National 

 Museum : Rhode Island, Illinois, Indiana, Kansas, Central Missouri, Virginia ; 

 Lincoln, Nebraska ; Louisiana, New Mexico, Colorado. Collection Ohio State 

 University: Cedar Bluffs, Nebraska; Ames, Iowa. Albany, N. Y. (Coll. N. Y. 

 State Mus. ). Mt. Katahdin, Me. " U. S." (49), Buffalo, N. Y. (53), Madison 

 and Caldwell, N. J. (38), Wauseon and Columbus, Ohio (31); Missouri and 

 Indiana (37) ; Tennessee (39); Milk River Region, Montana (44); Shasta Co., 

 California (51) ; Ft. Collins and Denver, Colorado (13) ; Sloan's Lake, Colorado 

 (42). Minnesota (34) ; Michigan; Kentucky; Utah. 



