Young male (nestrnig). — Above plain sooty blackish or blackish brown (nearly clove brown), rather lighter (dark sepia) on head, the wings and tail nearly black; greater wing-coverts rather broadly tipped with white but with a narrow terminal margin of dusky; rectrices (except middle pair) tipped with white, as in adults; under parts plain dark sooty brown, tinged with chestnut-brown or vandyke brown.
Southeastern Mexico, in States of Vera Cruz (Playa Vicente; Buena Vista), Oaxaca (Acatepec) and Tabasco (Teapa) through Guatemala (Choctúm; sources of Rio de la Pasión; Yzabál; Telemán; Los Amates; Uspantán, Quiché) to Honduras (Omoa; San Pedro; Rio Blanco) and British Honduras (near Manatee Lagoon; Toledo District).
- Formicivora boucardi Sclater, Proc. Zool. Soc. Lond., 1858, 241, 300 (Acátepec, Oaxaca; coll. P. L. Sclater); 1859, 383 (Playa Vicente, Vera Cruz); Cat. Am. Birds, 1862, 183, pl. 16 (Oaxaca; Choctúm, Guatemala); Cat. Birds Brit. Mus., XV, 1890, 254, part (Acátepec, Oaxaca; Choctúm and sources of Rio de la Pasión, Guatemala). — Moore, Proc. Zool. Soc. Lond., 1859, 55 (Omoa, Honduras). — Sclater and Salvin, Ibis, 1859, 119 (Omoa, Honduras; Proc. Zool. Soc. Lond., 1870, 837 (San Pedro, Honduras). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 216, part (Acátepec; Playa Vicente; Choctúm, Yzabál, and Telemán, Guatemala; Omoa and San Pedro, Honduras). — Dearborn, Pub. 125, Field Mus. Nat. Hist., 1907, 109 (Los Amates, e. Guatemala).
- [Formicivora] boucardi Sclater and Salvin, Nom. Av. Neotr., 1873, 72, part. — Sharpe, Hand-list, iii, 1901, 26, part.
- Formicivora boucardii {{sc|Boucard]], Ann. Soc. Linn. Lyon, 1878, 39 (Guatemala; Playa Vicente, Vera Cruz).
- D[rymophila] boucardi Richmond, Auk, xvi, Oct., 1899, 354, in text.
MICRORHOPIAS BOUCARDI VIRGATA (Lawrence).
PANAMA ANTWREN.
Similar to M. b. boucardi but adult male more intensely and extensively black (even the sides and flanks usually black or slate- black),[1] the adult female with color of under parts much darker (rufous-chestnut instead of rufous-tawny) and upper parts darker.
Adult male. — Length (skins), 96-113 (106); wing, 47.5-51 (49.5); tail, 40-49 (45.9); culmen, 13-14.5 (13.8); tarsus, 15-16 (15.7); middle toe, 8.5-9.5 (8.9).[2]
- ↑ A few specimens from Nicaragua and Costa Rica have the flanks slate color, much as in northern examples (M. b. boucardi), but all of the females seen from Costa Rica belong unmistakably to the Panamá form. (I have not seen any females from Nicaragua.) The white mesial streaks showing on the adult male described by Mr. Lawrence (and on which the name virgata was based) are an individual peculiarity, which I do not find repeated in any other specimen examined, even from Panamá. This form is distinctly intermediate in coloration between M. b. boucardi and M. b. consobrina of Colombia and Ecuadór.
- ↑ Twenty-one specimens.
