26 I 



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

 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, carinte white. The two 

 median carinse 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 Mu.seum, III, p. 353, 1S50. 



Hab. Jamaica. 

 Delphax luteivitta, Walk. Homup. 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. 



Alex. No. 360.) Hab. Mexico. 



