Key to the Species.
a. Upper plumage unstreaked T. immaculatus, p. 169. b. Upper plumage streaked. a'. No supercilium T. rubeculoides, p. 169. b'. A supercilium. a". Chin and throat black T. atriyularis, p. 170. b". Chin and throat white or fulvous. a'". Breast of same colour as remainder of lower plumage T. fttlvesceiis, p. 171. b'". Breast ferruginous, quite different to other parts of lower plumage. a 4 . Supercilium and breast deep ferru- N ginous ; crown and rump dis- tinctly streaked T. strophiatm, p. 171. 6*. Supercilium and breast pale ferru- ginous ; crown and rump obso- letely streaked T. jerdoni, p. 172.
714. Tharrhaleus immaculatus. The Maroon-backed Accentor.
Accentor immaculatus, Hodys. P. Z. S. 184-5, p. 34 ; Horsf. fy 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 horny (Hume Coll.}. Length about 6 ; tail 2-5 ; wing 3-2 ; 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.
715. Tharrhaleus riibeculoides. The Robin Accentor.
Accentor rubeculoides, Hodys., Moore, P. Z. S. 1854, p. 118 ; Horsf. 8f M. Cat. i, p. 361 ; Jerd. B. I. ii, p. 288; Stoliczka, J. A. S. B. xxxvii, pt. ii, p. 53 ; Blanf. J. A. S. B. xli, pt. ii, p. 64 ; Hume Sf Henders. Lah. to Yark. p. 234 ; Hume, Cat. no. 656 j Sharpe, Cat. B. M. vii, p. 657.
Coloration. Forehead, crown, nape, and sides of head brown ; back, scapulars, and rump reddish brown with broad black streaks ; upper tail-covert
