dusky usually replacing purplish on basal portion of outer webs, or with the purplish more restricted (on both webs), the tip (broadly on outermost rectrix) abruptly grayish white; primaries dusky brownish slate; median portion of chin and throat velvety black (this sometimes broken or irregular), the median portion of chest and breast metallic bluish green, passing into dusky on median line of abdomen; sides of chin and throat, malar region, and thence posteriorly to thighs, white; sides of neck, sides of chest, sides of breast, sides, and flanks metallic greenish bronze, sometimes washed or intermixed with purplish bronze; under tail-coverts grayish bronzy, tipped or terminally margined with white; femoral and lumbar tufts white; bill, etc., as in adult male; length (skins), 103-121 (114); wing, 62-69 (64.7); tail, 32-38 (34.3); culmen, 25-31 (28.1).[1]
Immature male and female. — Similar to the adult female, but chin and upper throat white, and sides of chin and throat (sometimes sides of chest and breast also) spotted or overlaid with chestnut (the feathers white beneath surface).
Southeastern Mexico in States of Tamaulipas (Tampico; Tantina; Alta Aira), Vera Cruz (Córdova; Jalapa; Misantla; Choapám; Catemaco; Tlalcotalpám ; Coatzocoalcos; Antigua), Oaxaca (Santa Efigénia; Tehuántepec), Chiapas (Palénque), and Yucatan (La Vega; Chichen-Itza ; Labna; between Ticúl and Uxmál; Cozumél, Meco, Mugeres, and Holbox islands), southward through British Honduras (Belize; Half Moon Cay; Isabella; Manatee Lagoon) and Guatemala (Santa Ana, Petén; Lake Petén; Escuintla; Hacienda de la Concepción) to Honduras (San Pedro ; Bonaca Island).
- Trochilus prevostii Lesson, Hist. Nat. Colibr., 1830-31, 87, pl. 24 (locality unknown); Index Gen. et Synop. Troch., 1832, p. xii (Surinam?). — ?Bourcier, Rev. Zool., vi. 1843, 99 ("Caracas").
- {?)T[rochilus] prevostii Bourcier and Mulsant, Ann. Soc. d'Agr. Lyon, vi, 1843, 39 ("Caracas").
- P[olytmus] prevostii Gray, Gen. Birds, i, Dec, 1848, 108.
- [Polytmus] prevostii Gray, Hand-list, i, 1869, 125, no. 1577.
- [Lampornis] prevosti Bonaparte, Consp. Av., i, 1850, 72; Rev. et Mag. de Zool., 1854, 250. — Sclater and Author:Osbert Salvin|Salvin]], Nom. Av. Neotr., 1873, 81, part. — Mulsant, Ann. Soc. Linn. Lyon, xxii, 1876, 203. — Sharpe, Hand-list, ii, 1900, 118, part.
- Lampornis prevosti Gould, Mon. Troch., pt. xv, 1858, (vol. ii), pl. 75, part; Introd. Troch., oct. ed., 1861, 65, part. — Sclater, Proc. Zool. Soc. Lond., 1856, 287 (Mexico); 1859, 367 (Jalapa, Vera Cruz), 385 (Choapám, Vera Cruz). — Sclater and Salvin, Ibis, 1859, 127 (Guatemala); Proc. Zool. Soc. Lond., 1870, 837 (Atlantic coast Honduras). — Mulsant and Verreaux, Classif. Troch., 1866, 24; Hist. Nat. Ois.-Mouch., i, livr. 3, 1874, 160 (Guatemala; Honduras; Mexico); iv, livr. 2, 1877, 156. — Salvin, Ibis, 1860, 272 (Escuintla, Guatemala); 1864, 380 (Half Moon Cay, Brit. Honduras); 1889,
- ↑ Fifteen specimens.
