Genera of Humming Birds. 93 



Tail purple-black. The three central rectrices black at base, 

 with their apical half metallic golden-green, the two next 

 purple-black, with metallic golden tip, and the two outermost 

 purple-black, with a scarcely visible golden tip, rufous-gray 

 on the basal outer web for about the third of its length. Bill 

 black. 



Total length, yirin. Wing, 2 J. Tail, 5^. Culmen, \. 



Female. — Unknown. 



The principal differences between this species and L. nuna 

 are the general colouration of its plumage, and the colour 

 of the throat and tips of rectrices, which are golden instead 

 of deep grass-green. 



It was discovered by Buckley in Bolivia. 



Tvpe in my collection. 



127. Lesbia gouldi, Lodd, P.Z.S., 1832, p. 7. 



Ornismya silphia, Less., Rev. Zool., 1840, p. 73. 



Mellisuga gouldij Gray, Gen. Birds, vol. i., p. 113. 



Cynanthiis goitldi, Bon., Consp. Gen. Av., 1850, vol. i., p. 81. 



Agaclyta gouldi, Cab. and Hein., Mus. Hein., i860, t. iii., 

 p. 70. 



Bogota Train-bearer, Gould, Mon. Troch., vol. iii., p. 167. 



La Lesbie de Gould, Muls., Hist. Nat., Ois. Mou., 1876, 

 vol. iii., p. 294, 



Habitat. — Columbia. 



Male. — Upperside, breast, flanks, and abdomen golden- 

 green, a patch of white feathers on each side of lower part 

 of abdomen. Under-tail coverts green, margined with buff. 

 Rectrices brownish-black at base, remaining part metallic 

 green. Outermost one, black with shining green tip, the outer 

 web grayish-buff to half its length, completely hidden by the 

 median rectrices. Wings purplish brown. Bill black. 



Total length, 6|^in. Wing, 2. Tail, 4^. Culmen, |. 



Female. — Upperside golden-green. Outer rectrices brown, 

 much shorter than those of the male, three fourths of the basal 

 outer web grayish buff, and hidden by the median rectrices, 

 tips gravish buff. Underside gravish, speckled with green. 

 Bill black. 



Common in Columbia. It was dedicated by Lesson to the 

 celebrated English Ornithologist, the late Mr. John Gould. 



