Page:Birds of North and Middle America partV Ridgway.djvu/133

Rh bright cinnamon-rufous, more grayish (sometimes wholly gray) on pileum and hindneck, the wing-coverts sometimes spotted with black; sides of head, throat, and chest black, rest of under parts white medially, grayish and fulvescent laterally; adult females similar but without black on under parts.

Range. — Nicaragua to western Ecuadór, Amazon Valley, and British Guiana. (About six species.)

a. Under parts partly black.
 * b. Back, wings, etc., brown or cinnamon-rufous.
 * c. Abdomen white; back, wings, etc., cinnamon-rufous or rufous-chestnut. (Myrmeciza boucardi.)
 * d. Whole chest gray.
 * e. Pileum and hindneck wholly gray; no black spots or bars on wing-coverts. (Central Colombia.)

Myrmeciza boucardi boucardi, adult male (extralimital).
 * ee. Pileum and hindneck mostly rufous-brown; wing-coverts with conspicuous bars or transverse spots of black. (Central Venezuela.)

Myrmeciza boucardi griseipectus, adult male (extralimital).
 * dd. Upper chest black, like throat, the lower chest white medially.
 * e. Sides of chest paler and less extensively gray. (Coast district of Venezuela; Trinidád.)

Myrmeciza boucardi swainsoni, adult male (extralimital).
 * ee. Sides of chest darker and more extensively gray. (Eastern Panamá and Caribbean coast district of Colombia.)

Myrmeciza boucardi panamensis, adult male (p. 107).