Genera of Humming Birds. 223 



I collected two male specimens at Naranjo, Costa Rica, in 

 April, 1877. 



317. Oreopyra calolaema, Salv., P.Z.S., 1864, p. 584. 



Metallura castaneiventris, Reich., Aufz. der Colib, 1853, 

 p. 8. 



Anthocephala castaneiventris, Gould. Mon. Troch., vol. iii., 

 p. 203. 



Purple-throated Humming-bird, Gould, Mon. Troch., 

 Suppl., 1886, p. 9. 



l'Oréopyre à queue d'un bleu d^ acier , Muls., Hist. Nat., 

 Ois. Mou., 1878, t. iv., p. 165. 



Habitat. — Veragua. 



Male. — Top of head brilliant metallic silvery-green. Upper- 

 side dark shining bronzy-green. Uppertail-coverts dark 

 shining green. Tail bluish-black. Throat metallic violet-red. 

 White line behind the eye. Auriculars verv dark green, 

 appearing almost black. Breast shining green, passing to 

 golden-green on flanks. Abdomen brown. Undertail-coverts 

 dark green, margined with grayish-white. Wings purplish- 

 brown. Bill black. 



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



Female. — Upperside shining grass-green. Median rectrices 

 bronze-green. Laterals bronze-green at base, passing to bluish- 

 black, the two outermost ones tipped with grayish-white. 

 Underside reddish-buff. Undertail-coverts brownish-green, 

 margined with gray or buff. Wings purplish-brown. Bill black. 



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



This fine species was discovered by Arcé, in Veragua, and 

 it is to this species, and to the next, that I attribute all the 

 reddish-buff females. 



318. Oreopyra pectoralis, Salv., Ann. Mag., Nat. Hist., 



i89i> P- 377- 

 Oreopyra calolaema, Boucard, P.Z.S., 1878, p. 69. 



Lilac throated Humming-Bird. 



r Oréopyre à gorge lilas. 



Habitat. — Costa Rica. 



Male. — Similar to that of O. calolaema, in all respects, 



