26 r 



So far this insect has been recorded only from Colorado. It is unknown 

 to me. 



Last June I took at Hamburgh, N. Y. a very immature little Delphacid 

 evidently pertaining to this genus. It is pale yellow becoming brownish 

 on the head and pronotum. Eyes and front black, carina; white. The two 

 median carina? of the front are distinct and parallel through their whole 

 length. 



UNCERTAIN SPECIES. 



The following species of doubtful position have been described from 

 our territory : 



Delphax vittata, Stal, Berliner Ent. Zeits., VI, p. 315, 1862. 



Hab. Carolina, Pennsylvania. 

 Delphax producta, Walk., Homop. British Museum, III, p. 353, 1850. 



Hab. Jamaica. 

 Delphax luteivitta, Walk. Homop. British Museum, III, p. 354, 1850. 



Hab. United States. 

 Delphax unicolor, Walk. Homop. British Museum, III, p. 354, 1854. 



Hab. Hudson's Bay. 

 Delphax pictilrons, Stal, Stal. Ent. Zeit., XXV, p. 50, 1864. (Hemip. 



Mex. No. 360.) Hab. Mexico. 



