2g6 Genera of Humming Birds. 



coverts green, margined with white. Wings purple. Bill 

 black. 



Total length, 7^ to 8Un. Wing, 3J. Tail, 2f. Culmen, 3-4. 



Female. — Upperside like the male, but usually more golden. 

 Lateral rectrices tipped with grayish-white, outermost ones 

 with the outer webs and tips gray. Throat white with a 

 central dark brownish-green streak. Underside shining green, 

 base of feathers white giving a scaly appearance to that part, 

 and more brilliant on breast. Centre of abdomen white or 

 pale buff, rest like the male. 



Total length, 7.^ to 8. Jin. Wing, 3. Tail, 2\. Culmen, 3-4. 



I cannot see any difïerence between the specimens from 

 Colombia and Ecuador. 



This remarkable species v/as probably discovered in 

 Colombia, by Mr. Boissonneau, who described it. I have 

 specimens from Colombia, Ecuador and Venezuela. Those 

 from Ecuador were collected by Buckley, and one specimen 

 only, collected by Mr. Briceno, in Merida, Venezuela, where 

 it seems to be very rare. 



Genus CXXI. Eugenes, Gould, Int. Troch., 1861, p. 57. 



Type : T. fulgens, Swainson. 



Bill straight, longer than the head. Wings long and pointed, 

 reaching the end of tail. Tail moderate and slightly forked, 

 rounded at tips, median rectrices shortest, lateral and outer- 

 most ones slightly and gradually longer. Tarsi clothed, feet 

 small, hind toe about equal in length to the middle one. 

 Crown and throat luminous in male. Sexes unlike. 



Habitat. — United States, Mexico, Guatemala and Costa 

 Rica. 



414. Eugenes fulgens, Sw., Phil. Magaz., 1827, p. 441. 

 Ornismya rivoli, Less., Ois. Mou., 182g, p. 48. 

 M ellisuga fulgens, Gray, Gen. Birds, vol. i., p. 112. 

 Delattria fulgens, Bon., Consp., Gen. Av. 1850, p. 70. 

 Coeligena fulgens, Reich., Aufz. der Colib., 1853, P- 7- 

 Eugenes viridiceps, Boucard, Ann. Soc, Linn. Lyon., 1878. 

 The Rivoli, Gould, Mon. Troch., vol. ii., p. 59. 



