PHYLLOSCOPUS. 401 



colour fail the next best guide will be dimensions and the pro- 

 portions of the primaries, but these are by no means constant. 



In Phylloscopus there are two moults a year, the sexes are alike, 

 and the young are more brightly coloured than the adults. 



Key to the Species*. 



a. Upper plumage uniformly of one colour. 



a'. Under wing-coverts and axillaries yellow. 



a 1 '. Lower plumage deep yellow P. affinis, p. 401. 



b". Lower plumage pale dull yellow .... P. tytleri, p. 402. 



c". Lower plumage buff P. tristis, p. 403. 



b'. Under wing-coverts and axillaries brown ; 



lower plumage huffish yellow P. indicus, p. 404. 



c'. Under wing-coverts, axillaries, and lower 



plumage dusky oil-green P. fuliginwentris, p. 404. 



d'. Under wing-coverts, axillaries, and lower 



plumage rich buff P. fuscatus, p. 405. 



e. Under wing-coverts and axillaries yel- 

 lowish white or white ; lower plumage 

 very pale buff. 



d'. Smaller ; wiug 1 '85 to 2*1 P. neglectus, p. 406. 



e". Larger ; wing 2'05 to 2'4 P. sindianus, p. 406. 



b. Crown darker than back, and variegated with 



coronal bands. 



/'. Lower portion of rump bright yellow. 

 /". Inner webs of outer tail- feathers white. 



a'". Throat and upper breast grey P. macuhpennis, p. 400. 



b'". Throat and upper breast yellow. ... P. pulcher, p. 407. 

 (/''. Inner webs of outer tail-feathers not 



white P. proregulusj p. 408. 



g '. Lower portion of rump not yellow, but 



coloured like upper portion. 

 /*". Lower plumage rather deep yellow 



tinged with ochraceous P. subviridis, p. 409. 



i'. Lower plumage very pale yellow or 



yellowish white. 

 c'". Supercilium greenish yellow ; both 



winof-bars distinct P. super ciliosus, p. 409. 



d'". Supercilium pale buffer brown, very 

 distinct ; upper wing-bar less dis- 

 tinct than lower P. humii, p. 410. 



e'". Supercilium brownish buff, distinct ; 



upper wing-bar indistinct P. mandettii, p. 411. 



405. Phylloscopus affinis. Tickets Willow- Warbler. 



Motacilla affinis, Tick. J. A. S. B. ii, p. 576 (1833). 



Phylloscopus affiuis (Tick.), Myth, Cat. p. 185 ; Jerd. B. I. ii, p. 194 ; 

 Blanf. J. A. S. B. xli, pt. ii, p. 54 ; Brooks, J. A. S. B. xli, pt. ii, 

 p. 81 ; Anders. Yunnan Exped., Aves, p. 025 ; Hume, Cat. no. 561 j 



* P. trochiliis, L. (Jerd. B. I. ii, p. 192), is omitted from this work as its 

 occurrence iu India is more than doubtful. 



VOL. I. 2 D 



