Page:Birds of North and Middle America partV Ridgway.djvu/145

KEY TO THE SPECIES AND SUBSPECIES OF FORMICARIUS.

a. Pileum and hindneck rufescent or tawny, conspicuously different, from color of back; outer web of exterior feather of alula light tawny or buff.

b. Forehead bright tawny or rufescent, like crown, etc. (Southeastern Brazil.)

Formicarius colma (extralimital).^[1]

bb. Forehead black or dusky. (Amazon Valley to Cayenne and Colombia.)

Formicarius nigrifrons (extralimital).^[2]

aa. Pileum dull brownish, not very different from color of back, or else black; outer web of exterior feather of alula grayish brown.

b. Chest black, brownish gray, or slaty.

c. Sides of neck similar in color to hindneck, not rufescent or cinnamomeous.

d. Pileum brown, like back, with only centers of feathers blackish; chest slate-gray in contrast with black of throat. (Bolivia to northeastern Peru.)

Formicarius analis (extralimital).^[3]

dd. Pileum and chest black. (Costa Rica and western Panamá.)

Formicarius analis nigricapillus (p. 118).

cc. Sides of neck rufescent or cinnamomeous. (Formicarius moniliger.)

d. Under tail-coverts only partly, if at all, rusty, tawny, or cinnamomeous, the longer (posterior) ones being dusky margined with brown.

e. A distinct rusty or cinnamomeous collar across foreneck.

f. Darker, the back, etc., bright mummy brown to chestnut-brown, the chest sooty slate-gray. (Southeastern Mexico, except Yucatan, to Guatemala)

Formicarius moniliger moniliger (p. 119).

ff. Paler, the back, etc., raw-umber to light olive-brown, the chest mouse gray to drab-gray.

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1. Formicarius colma Boddaert, Tabl. Pl. Enl., 1783, 44 (=young; based on Le Colma. de Cayenne Daubenton, Pl. Enl., pl. 703, fig. 1); Sclater, Cat. Birds Brit. Mus., XV. 1890, 302. — [Turdus] colma Gmelin, Syst. Nat., 1, pt. 2, 1789, 827. — Myrmothera colma Vieillot, Tabl. Enc. Meth., 1822, 681, 683. — Myiothera colma Cabanis, in Schomburgk's Reis. Brit. Guiana, iii, 1848, 686. — Formicarius cayanensis Boddaert, Tabl. Pl. Enl., 1783, 50 (= adult; based on Le Tetéma, de Cayenne Daubenton, Pl. Enl., pl. 821); Ridgway, Proc. U. S. Nat. Mus., xvi, 1893, 670 (monogr.). — M[yrmornis] cayanensis Cabanis and Heine, Mus. Hein., ii, 1859, 7. — Myiothera tetema Burmeister, Syst. Ueb. Th. Bras., iii, 1856, 46. — Myioturdus tetema Maximilian, Beitr. Naturg. Bras., iii, 1831, 1030. — Myrmothera fuscicapilla Vieillot, Nouv. Dict. d'Hist. Nat., xii, 1817, 112. — Myothera ruficeps Spix, Av. Bras., i, 1825, 72, pl. 72, fig. 1 (locality not given; coll. Munich Mus.). — Formicarius ruficeps Pelzeln, Orn. Bras., ii Abth., 1869, 90, part. — Formicanus ruficeps rnficeps Hellmayr, Orn. Monats., x, March, 1902, 35 (geog. range).
2. Formicarius nigrifrons Gould, Ann. and Mag. N. H., ser. 2, xv. May, 1855, 344 Chamicuros, e. Peru; coll. J. Gould); Proc. Zool. Soc. Lond., 1855 (pub. May 16),) 68; Sclater, Cat. Birds Brit. Mus., xv, 1890, 303; Ridgway, Proc. U. S. Nat. Mus., xvi, 1893, 672 (monogr.). — Formicarius colma nigrifrons Snethlege, Journ. für Orn., Jan., 1908, 17 (Rio Purús, w. Brazil). — (?) Formicarius nigrifrons glaucopectus Ridgway, Proc. U. S. Nat. Mus., xvi, no. 961, Nov. 28, 1893, 673, in text (British Guiana; coll. U. S. Nat. Mus.).
3. M[yothera] analis D'Orbigny and Latresnaye, Synop. Av., in Mag. de Zool., 1837, 14; cl. ii, pls. 77-79 (Yuracares and Chiquitos, Bolivia); D'Orbigny, Voy. Amér. Mérid., Ois., 1839, pl. 6 bis, fig. 1. — Formicanus analis Sclater, Proc. Zool. Soc. Lond., 1857, 46; Cat. Birds Brit. Mus., xv, 1890, 304, part; Ridgway, Proc. U. S. Nat. Mus., xvi, 1893, 673 (monogr.). — Formicarius analis analis Hartert, Novit. Zool., ix, Dec, 1902, 613 (Bolivia to e. Peru; diagnosis). — M[yrmornis] analis Cabanis and Heine, Mus. Hein., ii, 1859, 7.