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Key to the Species.[1]
a. Lower plumage of two colours, black or billy with chestnut. a'. Chin and throat black P. erythrogastra <5, p. 143. b'. Chin and throat blue. a". Large white patch on wing. ... P. cmdorkyncha J, p. 144. //'. No white patch on wing P. solitaria cJ, p. 145. b. Lower plumage almost uniformly of one colour, barred or squamated with black or brown. c'. Upper plumage blue or suffused with blue. c". Under wing-coverts and ax- illaries blue, narrowly tipped white P. cyanus J , p. 140. d". Under wing-coverts and axil- Uries barred with black or , p Maria ? _ p J45 d'. Upper plumage olke-brown.' " ' ' P ~ c 'J anUS ? ' *' 146 ' c" . 13ack and rump barred ; wing o. P. erythrogastra $ , p. 143. f". Back plain, rump barred ; wing4. P. cinclorhyncha , p. 144.
630. Petrophila erythrogastra. The Chestnut-bellied Rock-Thrush.
Turdus erythrogaster, Vigors, P. Z. S. 1831, p. 171 ; Gould, Cent. pi. xiii. Petrocincla erythrogastra ( Viy. Blyth, Cat. p. 164 ; Horsf. $ M. Cat. i, p. 185. Orocetes ervthrogastra (FiY/.), Jerd. B. I. i, p. 514; Wardlaw Ramsay, P. Z. S. 1876, p. 077 ; id. Ibis, 1877, p. 463. Petrophila erythrogaster ( Viy.}, Hume, N. fy E. p. 227 ; id. Cat. no. 352 j Scully, S. F. viii, p. 282 ; Oates in Hume's N. $ E. 2nd ed. ii, p. 102. Monti cola erythrogaster ( Vig. Seebohm. Cat. B. M. v,p. 325; Oates, />'. B. i, p. 10.
The Chestnut-bellied Thrush, Jerd. j Ninyri-pho, Lepch. Coloration. Male. After the autumn moult, the lores, sides of the head and neck, and the mantle black, each feather margined with whitish ; remaining upper plumage brilliant cobalt-blue ; lesser and median coverts brown edged with cobalt-blue ; greater coverts and quills brown edged with duller blue ; tail bluish brown ; chin and throat black overlaid with blue; remainder of lower plumage maroon-chestnut. The white edges to the black portions of the plumage soon wear off, and in spring and summer these parts are usually black.
Female. Dull olive- brown, the feathers of the back, scapulars, rump, and upper tail-coverts with wavy black bars and paler fringes ;
- ↑ I cannot identify Petrocincla castancocollis, Lesson, Kev. Zool. 1840, p. 166, described as occurring in the Himalayas. Seebohm does not refer to this species in his Catalogue of the Thrushes. Stoliczka, J. A. S. B. xxxvii, p. 34 note, suggests that the type was a young Monticola saxatUis.
