Page:Birds of North and Middle America partV Ridgway.djvu/159

Rh of pileum short; anteorbital and postocular regions (A. rufigula) or suborbital, postocular, and lower portion of loral regions (A. bicolor and allies) naked; latero-frontal feathers short and erect (denser, more plush-like in A. rufigula). Coloration. — Plain brown or olive, with throat tawny or rufescent, or with throat and median under parts white; sexes alike or nearly so.

Range. — Honduras to Amazon Valley and Cayenne. (Eleven or more species recognized. )

a. Underparts brown (no white), becoming tawny or rufous on throat and auricular region. (British Guiana to lower Amazon Valley.) Anoplops rufigula (extralimital). aa. Underparts broadly white medially, including throat; auricular region black or dusky.
 * b. Above bright tawny-chestnut, more rufescent on forehead.
 * c. Sides and flanks chestnut or rufous-chestnut. (Colombia.)

Anoplops ruficeps (extralimital).
 * cc. Sides and flanks olive-brown, becoming slate-grayish next to white of breast, etc. (Colombia and upper Amazon Valley.)

Anoplops leucaspis (extralimital).
 * bb. Above vandyke brown, not more rufescent on forehead.
 * c. Forehead and postauricular regions slate color. (Eastern Panamá.)

Anoplops bicolor (p. 132).
 * cc. Forehead and postauricular region brown, like pileum, etc. (Western Panamá, to eastern Honduras.)

Anoplops olivascens (p. 132).