BIKDS OF NOKTH AND MIDDLE AMERICA. 



463 



(?) Trochilus atricapillus Vieillot, Noixv. Diet. d'Hist. Nat., vii, 1817, 354 (Para- 

 guay; based on delfaxa negra a lo largo Azara). 



(?) Lampornis obscura Boucard, The Hum. Bird, i, no. 4, April 1, 1891, 25 (Brazil; 

 coll. A. Boucard; = melanism?). 



'?) Lampornis violicauda var. Boucard, Proc. Zool. Soc. Lond., 1879, 178 (=mel- 

 anism?). 



ANTHRACOTHORAX PREVOSTH PREVOSTH (Lesson). 



PREVOST'S MANGO. 



Adult male. — Above metallic bronze-green or greenish bronze; 

 middle pair of rectrices dull dusky bronze-green, varying to dull cop- 

 pery bronze, the other rectrices deep purplish maroon strongly 

 glossed with metallic violet-purple, margined terminally (rather 

 broadly) with black; remiges dusky brownish slate; median portion 

 of chin and throat (broadly) velvety black; sides of chin and throat 

 (narrowly), malar region, lower foreneck, chest, and median portion 

 of breast and abdomen metallic bluish green, the feathers dull black 

 or dusky beneath surface, auricular region, sides of neck, sides of 

 chest and breast, sides, and flanks bronze-green; under tail-coverts 

 dusky, often intermixed with deep purplish chestnut (the latter 

 sometimes prevailing); femoral and lumbar tufts white; bill dull 

 black; iris dark bro\m; feet dusky; length (skins), 110-120 (115); 

 wing, 63.5-68.5 (66); tail, 34-37 (35.6); culmen, 24-29 (26.2).« 



Adult female. — Above much less bronz}^ than adult male, often 

 nearly pure metallic green; lateral rectrices with brownish gray and 



a Twenty-four specimens. 



Locality. 



Ex- 

 posed 

 culmen. 



MALES. 



Ten adult males from Tamaulipas, Vera Cruz, and Oaxaca 



Two adult males from Yucatan 



Ten adult males from Cozurai^l Island 



One adult male from British Honduras 



One adult male from eastern Guatemala 



Three adult males from Nicaragua (^. p. grarilirostiis) 



Six adult males from Costa Kica(^. p. gracilirostris) 



Four adult males (A. p. hendersoni) from Old Providence Island. 



FEMALES. 



Five adult females from Tamaulipas, Vera Cniz, and Oaxaca 



One adult female from Yucatan 



Four adult females from Cozumel Island 



One adult female from British Honduras 



One adult female from eastern Guatemala 



One adult female from Chiapas (Pal(5nque) 



Two adult females from Nicaragua(^. p. graciliTostm) 



Eight adult females from Costa RicaiA. p. gracitirostTis) 



Two adult females {A . p. hendersoni) from Old Providence Island 



26.5 



^5.2 



26 



26 



2?- 



24.7 



24.3 



22.9 



29.5 



28 



28.2 



28.5 



25 



26.5 



25.5 



25.4 



22.7 



