Genera of Humming Birds. 351 



ones gradually longer, the fourth much longer than the third, 

 •and the outermost one much longer, turning slightly outward 

 at the tip in some specimens. Sexes alike. 



Habitat. — Guiana, Brazil, Peru. 



474. EUPETOMENA MACROURA, Gmel, Syst., Nat., 1788, 



vol. i., p. 487. 



Trochilus forcipatns, Lath., Ind. Ornith., 1790, vol. i., 

 p. 304. 



Ornismya hiriindinacea, Less., Ois. j\Iou., p. gS. 



Polytmus macrouriis, Gray, Gen. Birds, vol. i., p. 107. 



Prognornis macroura, Reich., Aufz. der Colib., 1853, P- ^^^ 



Eupetomena hiriindinacea, Gould, Mon. Troch., vol. ii., 

 p. 42. 



Swalloiv Tail, Gould, Mon., Troch., vol. ii., p. 42. 



V Eupetomene Jiirondelle, Muls., Hist. Nat. Ois. Mou., 1874, 

 voL i., p. 112. 



Habitat. — Brazil. 



Male. — Head and neck metallic prussian-blue. Upperside 

 dark shining green passing to bronze on upper parts of upper- 

 tail-coverts ; these are dark steel-blue like the tail. Chin, 

 throat and breast metallic prussian-blue. Rest of underside 

 dark shining green. Tufts of feathers of anal region and on 

 sides of flank pure white. Undertail-coverts dark steel-blue. 

 Wings purplish-brown. Bill black. 



Total length, 7in. Wing, 3. Tail, 4. Culmen, \. 

 Female. — Slightly paler in colour, and the tail shorter. 

 Total length, 5fin. Wing, 2^. Tail, 3. Culmen, \. 

 Common in Brazil. 



475. Eupetomena hirundo, Gould, Ann. and Mag. Nat. 



Hist., 1875. 



Western Sivalloiv Tail, Gould, Mon. Troch. Suppl., 1S86, 

 p. 4. 



r Eupetomene hirondelle du Peroii. 



Habitat. — Peru. 



