714. Tharrhaleus immaculatus.
The Maroon-backed Accentor.
Accentor immaculatus, Hodgs. P. Z. S. 1845, p. 34 ; Horsf. & M. Cat. i, p. 361; Jerd. B. I. ii, p. 286 ; Hume, Cat. no. 651; Sharpe, Cat. B. M. vii, p. 656. Accentor mollis, Blyth, J. A. S. B. xiv, p. 581 (1845); id. Cat. p. 131.
Coloration. Forehead, crown, and nape dark ashy, the feathers of the forehead margined with white; upper back olive-brown tinged with rufous, gradually changing to maroon on the lower back, rump, scapulars, and outer webs of tertiaries and later secondaries ; upper tail-coverts olive-brown tinged with rufous; tail greyish brown ; wing-coverts dark grey; primary-coverts and winglet black; quills dark brown, the earlier primaries edged with grey on the outer webs above the emarginations; lores black; ear-coverts slaty brown; chin, throat, breast, sides of neck, upper abdomen, and sides of body ashy brown ; lower abdomen, vent, and under tail-coverts dark chestnut; thighs slaty.
Iris whitish yellow ; bill black ; legs homy (Hume Coll.).
Length about 6; tail 2.5; wing 8.2; tarsus .9; bill from gape .6.
Distribution. Nepal and Sikhim. The specimens of this species that I have examined from the latter country were killed from October to April. It extends to Western China and Moupin.