PHYLLOSCOPTJS PROKEGTJLUS. 



(PALLAS'S WILLOW- WARBLER.) 



Motacilla proregulus, Pallas, Zoogr. Ross. -As. i. p. 499 (1811). 



Regulus modestus, Gould, B. of Eur. ii. p. 149 (1837, partim). 



Begulus proregulus (Pall.), Keys. & Bias. Wirbelth. Eur. p. 184 (1840). 



Abrornis chloronotus, Hodgs. MS. Drawings of B. of Nepal, Passeres, pi. 57. fig. 5, no. 839. 



Abrornis chloronopus, Hodgs. in Gray's Zool. Misc. p. 82. no. 839 (1844). 



Regulus chloronotus (Hodgs.), Gray, Gen. of B. i. p. 175 (1848). 



Reguloides chloronotus (Hodgs.), Blyth, Cat. B. Mus. As. Soc. p. 184 (1849). 



Phyllobasileus proregulus (Pall.), Cab. Mus. Hein. i. p. 33 (1850). 



Phyllobasileus chloronotus (Hodgs.), Cabanis, Journ. f. Orn. 1853, p. 96. 



Sylvia (Phyllopneuste) proregulus (Pall.), Midd. Sib. Reise, Vog. p. 183 (1853, partim). 



Phylloscopus proregulus (Pall.), Blyth, Journ. As. Soc. Beng. 1854, p. 498. 



Reguloides proregulus (Pall.), Swinhoe, Ibis, 1860, p. 54. 



Sylvia (Phyllopneuste) superciliosa (Gmel.), Radde, Reise Slid. Ost-Sibir. ii. p. 264 (1863, 



partim). 

 Sylvia proregulus (Pall.), Finsch, Journ. fur Orn. 1863, p. 30. 



Phyllopneuste (Phyllobasileus) proregulus (Pall.), Homeyer, Journ. f. Orn. 1872, p. 208. 

 Phyllobasileus proregulus (Pall.), Bolau, Journ. fiir Orn. 1880, p. 116. 

 Phylloscopus newtoni, Gatke, Ibis, 1889, p. 579. 



Figures notabiles. 

 Gould, B. of Eur. ii. pi. 149; Fritsch, Vog. Eur. Taf. xix. fig. 3. 



Ad. corpore supra viridi-olivaeeo, capite saturatiore : fronte, stria pilei ad nucham ducta, et striis superciliari- 

 bus sulphureis : loris et stria per oculos ducta, fusco-olivaceis : uropygio flavo : cauda et alis saturate 

 fuscis, plumis extus viridi-flavo marginatis : alis cum duabus fasciis flavidis riotatis : corpore subtiis 

 albo lateraliter vix griseo tincto : abdomine imo lateraliter et subcaudalibus pallide sulphureo tinctis. 



Adult (Kultuk, September 12th). Upper parts olive-green, the upper tail-coverts rather paler; rump 

 bright yellow ; crown darker than the back ; forehead, a mediau line extending to the nape, and a 

 tolerably broad superciliary stripe over each eye sulphur-yellow ; lores and a broad line bordering the 

 superciliary stripe dark brown; wings and tail dark brown, the feathers externally margined with 

 yellowish green ; the wings crossed by two distinct yellowish-white bars ; underparts white, tinged 

 with grey on the flanks, and very faintly with pale sulphur on the lower flanks and under tail-coverts : 

 bill dark brown, the base of the lower mandible yellowish ; legs greenish brown ; soles yellowish green ; 

 iris dark brown. Total length about 3 - 5 inches, culmen - 4, wing 2"1, tail 15, tarsus 0"67 : first 

 primary 07 shorter than the second, which is equal to or a trifle longer than the eighth ; third and fifth 

 equal ; the fourth a trifle longer, this being the longest. 



The spring plumage is a trifle duller than the autumnal dress above described. In the summer the plumage 



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