326 Genera of Humming Birds. 



Polytmus caeruleogaster, Gray, Gen. Birds, vol. i., p. 108. 



Cyanocliloris caeruieiventris, Reich., Troch., Enum., 1855, 

 p. 7. 



Aygrtria caeruieiventris, Reich., Troch., Enum., 1855, p. 7. 



Chalybiira caeruieiventris, Cab. and Hein., Mus., Hein., 

 i860, t. iii., p. 20. 



Hypuroptila caeruleogaster^ Gould, Mon. Troch., vol. ii., p. 

 91. 



Lampornis caeruieiventris, Bon., Rev. and Mag., ZooL, 

 1864, p. 220. 



Blue-breasted Plumeteer, Gould, Mon. Troch., vol. ii., p. 

 91. 



le Chalybure à ventre bleu. 



Habitat. — Colombia. 



Male. — Forehead metallic golden-green, passing to golden 

 on neck. Upperside golden-green, very dark in certain 

 lights. Uppertail-coverts golden-green or purplish-golden. 

 Tail steel-blue. Chin and throat metallic-green, or golden- 

 green, passing to a bright dark blue on the breast and 

 abdomen. Flanks shining green. Undertail-coverts, vent, 

 and spot behind the flanks, pure white. Wings purple. Bill 

 black. 



Total length, 4fin. Wing, 2|. Tail, 2J. Culmen, i. 



Female. — Upperside golden-green. Underside pale gray, 

 w^ashed with green. Tips of lateral rectrices white. 



This species is rather rare. 



I have one male specimen from Colombia so distinct in its 

 colouration that a new species could be made wdth it ; but I 

 consider that it is only accidental. It is as follows : — Upper- 

 side dark green with a bluish tinge. Rectrices of tail steel- 

 blue. Underside purplish-gray, washed all over with bluish- 

 green feathers. Undertail coverts white. Wings purple. 

 Bill black. 



Total length, 4fin. Wing, 2\. Tail, 2. Culmen, i. 



Genus CXXXI. Lampornis, Swainson, Zool. Journ., 



1827, vol. iii., p. 358. 

 Anthracothorax, Boié., Isis., 1831, p. 546. 

 Smaragdites, Boié., Isis., 183 1, p. 546. 



