Page:Birds of North and Middle America partV Ridgway.djvu/150

122 Adult (sex not determined). — Length (skin), 173.5; wing, 93; tail, 55; culmen, 22; tarsus, 31; middle toe, 20.

Yucatan (Tizimin).


 * Furnarius pallidus, Ann. N. Y. Acad. Sci., ii, no. 9, May 29, 1882, 288 (Yucatan; coll. G. N. Lawrence).
 * Formicarius pallidus, Ann. N. Y. Acad. Sci., ii, no. 9, 1882 (index). — , Proc. Zool. Soc. Lond., 1883, 450 (Tizimin, Yucatan; crit.). — and , Journ. für Orn., 1884, 388 (reprint of orig. descr.). — , Proc. U. S. Nat. Mus., xvi, 1893, 684 (monogr.).
 * [Formicarius] pallidus, Hand-list, iii, 1901, 39.
 * F[ormicarius] m[oniliger] pallidus, Proc. Biol. Soc. Wash., xxi, Oct. 20, 1908, 194, in text.
 * [Myrmornis] pallidus and, Nomencl. Mus. Hein. Orn., 1890, 124.
 * Formicarius moniliger (not of Sclater, 1856), Cat. Birds Brit. Mus., xv, 1890, 303, part (Tizimin, Yucatan). — and , Biol. Centr.-Am., Aves, ii, 1892, 233, part (Tizimin).

FORMICARIUS MONILIGER UMBROSUS (Ridgway).

Similar to F. m. moniliger but without any chestnut across foreneck, the black of throat giving way, more or less abruptly, on chest to dull slate color or sooty gray; under tail-coverts darker, more castaneous, brown; terminal portion of auricular region, together with supra- auricular region (sides of occiput) and sides of neck, varying from chestnut to vinaceous-cinnamon.

Young. — Much like adults but malar region, chin, and throat dull whitish or buffy, transversely mottled or barred with dusky, or else uniform dull sooty blackish; whitish abdominal area transversely spotted or clouded with grayish dusky.

Adult male. — Length (skins), 158-180 (164); wing, 86-93 (90.2); tail, 49.5-57 (53.7); culmen, 19-23.5 (21.4); tarsus, 31-36 (33.5); middle toe, 18-20.5 (19.1).

Adult female. — Length (skins), 146-170 (161); wing, 86-91.5 (88.3); tail, 48-55 (51.7); culmen, 19-22 (20.3); tarsus, 31.5-33.5 (32.3); middle toe, 17.5-20 (18.8).