ORDER MACROCHIRES. 1 73 



425. Aeronautes melanoleucus (Baird). 



White-throated Swift. 



Cypselus melanoleucus Baird, Pr. Ac. Nat. Sci. Phila. June, 1854, 



118. 

 Aeronautes melanoleucus Hartert, Cat. Birds Brit. Mus. XVI, 



1892, 459. 



[B ro7, C 269, R 349, C 403.] 



Geog. Dist. — Western United States, from the Black Hills, 

 northern Wyoming, and southern Montana to the Pacific ; south, in 

 ■winter, to Guatemala. 



Suborder TROCHILI. Hummingbirds. 



Family TROCHILIDiE. Hummingbirds. 



Genus EUGENES Gould. 



Eugenes Gould, Mon. Troch. pt. xii. 1856, pi. 59. Type, Tro- 

 chilus fulgetts Swains. 



426. Eugenes fulgens (Swains.). 



Rivoli Hummingbird. 



Trochilus fulgens Swains. Phil. Mag. I. 1827, 441. 

 Eugenes fulgens Gould, Mon. Troch. II. 1856, pi. 59. 



[B— C274to, R334, C408.] 



Geog. Dist. — Southern Arizona and tablelands of Mexico to 

 Nicaragua. 



Genus C(ELIGrENA Lesson. 



Cceligena Less. Ind. & Synop. Gen. Troch. 1832, p. xviii. Type, 

 Omismya clemencicB Less. 



