146 SYNOPSIS OF THE HUMMING-BIRDS. 



Fig. 83. 



Zesbia nuna. S • Tern. "Whitely, 



Ch. Bill short, straight. Tail very deeply forked, rectrices narrow, outermost 

 ones greatly exceeding the others in length. Feet rather large. Sexes different. 

 Range. Columbia, Ecuador, and Peru. 

 I recognize four species only belonging to this genus. 



Key to the species. 



A. Outermost rectrices on either side black glossed and tipped with green, the 



rest brownish-black at base, remaining portion mctallic-grecn. 1. L. gouldi. 



B. Rectrices black at base, apical half of all but the two outermost metallic- 



green, the outermost pair all black with luminous green tips. 2. L. nuna. 



C. Rectrices brownish-black, largely tipped with grass-green, except the outer- 



most which has a bronze tip. 3. L. eucharis. 



D. Rectrices black, their tips greenish-bronze. 4. L. amaryllis. 



1. Lesbia gouldi. 



Trochilus gouldi, Lodd., P. Z. S. (1832), p. 7. 



Ornismya sylphia, Less., Rev. Zool. (1840), p. 73. 



Trochilus [Lesbia) gracilis, Gould, P. Z. S. (1846), p. 86. 



Mellisuga gouldi. Gray, Gen. Birds, vol. i, p. 113, sp. 51 (1844-49). 



Mellisxiga gracilis. Gray, Gen. Birds, vol. i, p. 113, sp. 53. 



Cynanthus gracilis, Bon., Consp. Gen. Av. (1850). vol. i, p. 81. 



Cynanthus gouldi, Bon., Consp. Gen. Av. (1850), vol. i, p. 81.— Id., Rev. and Mag. Zool. (1854). p. 252. 



Lesbia gouldi, Reich., Aufz. der Colib., p. 8 (1853).— Id., Troch. Bnvim., p. 5, pi. 712, fips. 4615-17.— Goni.D, 



Men. Troch., vol. iii. pi. 167.— Id., Intr. Troch., octavo ed., p. 101 (1861).— Mui.s., Hist. Nat. Ois. Mouch., 



torn, iii, p. 293 (1876). 

 Agaclyfa gouldi. Cab. and Hein., Mhs. Hein. (1860) Th., iii, pp. 70, 71 (note). 

 Leshia gracilis, Reich., Aufz. der Colib., p. 8 (1853).— Id., Troch. Ennm., pi. 713, figs. 4618-19 (1855).— 



Gould, Mon Troch., vol. iii, pi. 168.— Id., Intr. Troch., octavo ed., p. 101 (1861).— Mcls., Ois. Mouch., 



torn, iii, p. 295. 

 Lesbia chlorura, Gould, P. Z. S. (1871), p. 504. 



Eab. Columbia and Ecuador. Peru.? 



Male. Upper parts, breast, upper part of abdomen, and flanks golden-green; 

 abdomen sometimes mottled Avith buff; throat metallic grass-green. Lower part 

 of abdomen buff, under tail coverts green margined with buff. Hectrices brownish- 

 black at base, remaining part metallic-green. Outermost one black, with a shining 

 green tip, the outer web buff for three-fourths its basal length. Wings purplish- 



