304 Genera of Humming Birds. 



tips on lateral and outermost rectrices are more conspicuous. 

 Throat black margined with white. Underside gray, washed 

 with golden feathers on sides of breast and on flanks. Centre 

 of abdomen white, rest like the male. 



Total length, 4Jin. Wing, 2|. Tail, i^. Culmen, i|-. 



This species is common in Guatemala. 



I have four specimens, three males and one female, collected 

 in Veragua bv Arcé, which are very distinct in the colouration 

 of the throat and the underside. The throat is metallic lilac 

 with steel-blue reflections, the underside is gray or grayish- 

 white, w^ashed sparingly with golden-green feathers on flanks, 

 remainder of plumage like H. pallidiceps. The female is 

 coloured the same, excepting the throat, which is black 

 margined with white. If it should prove a distinct species, I 

 propose for it the name of Heliomaster veraguensis. 



420. Floricola CONSTANTI, Delatt., Echo, du IMond. sav., 



1843, p. 1069. 



Trochilus leocardiae, Bourc, Ann. Sc. Nat. Lyon, 1852, 

 t. iv., p. 141. 



Selasopherus constanti, Reich., Aufz. der Colib, 1853, 

 P- 13- 



Heliomastes constanti, Bon., Rev. and Mag., Zool., 1854, 

 p. 251. 



Heliomaster pitiicola, Gould, Mon. Troch., vol. iv., p. 261. 



Selasphoriis iongirostrisy Reicb-, Aufz. der Colib, 1853, P- 

 13- 



Heliomastes leocardiae, Bon., Rev. and Mag., Zool., 1854, 

 p. 251. 



Constant's Star-throat, Gould, Mon. Troch., vol. iv., p. 260. 



Pine Star-throat, Gould, Mon. Troch., vol. iv., p. 261. 



r Héliomaste de Constant, Muls., Hist. Nat. Ois. Mou.; 

 1876, t. ii., p. 270. 



r Hêlioniaste de Léocardie, Muls., Hist. Nat. Ois. Mou., 

 1876, t. ii., p. 277. 



Habitat. — Mexico, Guatemala, and Costa-Rica. 



Male. — Upperside pale bronzy-green, golden when seen 

 from behind, with a patch of white feathers in the centre of 



