Genera of Humming Birds. 141 



speckled with shining purplish-blue feathers. Undertail-coverts 

 fawn. Size as that of male. 



I think this species was discovered by Delattre in Guatemala. 

 It was dedicated to Madame Elicia Alain, by MM. Bourcier 

 and Mulsant. 



197. Chrysuronia chrysura, Less. Ois. Mou. Suppl., 1831, 



p. 107. 

 Polytmiis chyrsurus, Gray, Gen. Birds, vol. i., p. 100. 

 Ramphodon cJirysurus, Reich., Aufz. der Col., p. 15. 

 Golden Tail, Gould, Mon. Troch., vol. v., p. 329. 



La Chrysuronie a qneiie d'or, Muls., Hist. Nat. Ois. Mou., 

 1875, t. ii., p. 5. 



Habitat.— ^xTK-LxX. (?) 



Male. — Upperside, including the tail, shining golden-bronze. 

 Throat, breast, upper part of abdomen, and flanks, metallic 

 golden-red. Rest of abdomen reddish-gray. A tuft of white 

 feathers on each side of anal region. Undertail-coverts golden 

 with gray edges. Wings purplish-brown. Bill flesh colour, 

 with black tips. 



Total length, 3iin. Wing, 2\. Tail, if. Culmen, -|-. 



Female. — Upperside golden-bronze. Underside, like that 

 of male, but less brilliant. Same size as male. 



It is a very rare species. 



198. Chrysuronia ruficollis, Veill., N. Diet. Hist. Nat., 



vol. vii., p. 362. 



Ornisymia ruficollis, d'Orh.d.nd Laf., Syn. Av., 1838, p. 30. 



Rufous-Throated Golden-Tail. 



la Chrysuronie a gorge rousse. 



Habitat. — Bolivia, Paraguay. 



Male. — Uppersidegolden-green. Tail bronze. Throat-rufous. 

 Breast, sides of abdomen and flanks shining golden-green. 

 Centre of abdomen grayish-buff. Undertail-coverts golden- 

 rufous with gray edges. Wings purple-brown. Bill flesh 

 colour with black tips. 



Total length, 3fin. Wing, 2\. Tail, \\. Culmen, |. 



Female. — Upperside golden-green. Tail bronze, with gray 

 tips on lateral feathers. Rest as male. 



