Page:Birds of North and Middle America partV Ridgway.djvu/235

Rh :: c. Superciliary stripe buff or ochraceous-buff, different from color of throat. (Southern Mexico to western Panamá.) Xenicopsis variegaticeps (p. 207).
 * cc. Superciliary stripe pale yellowish buff, concolor with throat.
 * d. Throat pale dull buffy or buffy whitish.
 * e. Chest broadly streaked or flammulated with pale buffy; color of pileum browner. (Colombia to Peru and Bolivia.)

Xenicopsis striaticollis (extralimital).
 * ee. Chest plain light buffy brown, or with very indistinct (obsolescent) streaks; color of pileum more olivaceous. (Western Colombia to Ecuadór and Bolivia.)

Xenicopsis temporalis (extralimital).
 * dd. Throat light buff-yellow. (Santa Marta district of Colombia.)

Xenicopsis anxius (extralimital).
 * bb. Hindneck, upper back, and chest, conspicuously streaked; upper tail-coverts chestnut, like tail. (Xenicopsis subalaris.)
 * c. Pileum and back more distinctly streaked, under parts more broadly streaked, chestnut of upper tail-coverts and tail much darker; slightly smaller. (North-western Colombia to western Ecuadór.)

Xenicopsis subalaris subalaris, adults (extralimital).
 * cc. Pileum and back much less distinctly streaked (the former much browner), under parts more narrowly streaked, and chestnut of upper tail-coverts and tail much lighter; slightly larger. (Costa Rica and Panamá.)

Xenicopsis subalaris lineatus, adults (p. 209). aa. Throat and chest tawny or tawny-ochraceous. Xenicopsis subalaris lineatus, young (p. 210).

XENICOPSIS VARIEGATICEPS (Sclater).

Adults (sexes alike). — Pileum and hindneck grayish olive, the feathers with narrow shaft-streaks of dull whitish or buffy (at least on crown) and very indistinctly margined terminally with dusky; back, scapulars, rump, upper tail-coverts and wings plain brown (between mummy and raw-umber), the secondaries more russet-