8 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



KKV TO SUBSPECIES OF BUDYTES FLAVUS. 



o. Under parts distinctly yellow; pilenin and hindnei-k gray, in contrast with olive- 

 greenish of back. (Adnlts. ) 

 I). Under parts deeper and purer yellow (lemon yellow), throat always (?) wholly 

 yellow, only the chin being white; back brighter olive-green. (Europe, etc.) 



Budytes flavus flavus (extralimital)« 

 bb. Under parts paler and duller yellow; throat always (?) more or less white 

 on upper portion; back duller olive-green. 

 c. Brighter yellow below, wdth less of dusky spotting on chest; back and rump 

 brighter olive-green; larger, especially the bill (adult male averaging wing 

 79.9, exposed culmen 12.6; adult female averaging wing 76.2, exposed 

 culmen 12.8). (Eastern Siberia and Kamchatka, south in winter to south- 

 ern Asia, etc. ) Budytes flavus leucostriatus ( extralimital ) '' 



cc. Duller and paler j'ellow below, with more of dusky (in chest; back and rump 

 duller olive-green (the back more grayish); smaller, especially the bill 

 (adult male averaging wing 77.4, exposed culmen 11.7; adult female aver- 

 aging wing 74.6, exposed culmen 11.7). (Western Alaska, north of the 

 Alaskan peninsula, in summer; probably migrating through eastern Asia 



to the Philii)})ine Islands in winter. ) Budytes flavus alascensis (p. 8) 



aa. Under parts dull buffy yellow or light yellowish buff, or dull whitish sometimes 

 I'louded with dusky on chest; pileum and hindneck olive or grayish brown, 

 like back. (Young, c) 



BUDYTES FLAVUS ALASCENSIS, new subspecies. '« 

 ALASKAN YELLOW WAGTAIL. 



Similar to B. f. Jciicostrlatus^ but slightly smaller, especially the 

 bill; coloration duller, the yellow of under parts paler and less pure, 

 the chest more distinctly clouded or blotched with grayish, the olive- 

 green of rump, etc., less pronounced. 



"■[Motadlla^flava Linngeus Syst. Nat., ed. 10, 1758,185. — Motacilln flava Naumann, 

 Vog. Deutschl., iii, 1823, 889, pi. 88; Dresser, Birds Europe, iii, 1875, 261, pi. 129, part, 

 figs. 1, 2; Sharpe, Cat. Birds Brit. Mus., x, 1885, 516, part. — Budytes flava Cuvier, 

 Regne An., 1817, 371; Eritsch, Yog. Eur., 1870, pi. 17, tigs. 17, 18. — Parus hiteus Gmelin 

 (S. G.), Reis. RussL, iii, 1774, 101, pi. 20, fig. 1. — Pants caspicus Gmelin (S. G.), 

 Reis. RussL, iii, 1774, 104, pi. 20, fig. 2. — Molacilla chrysogaslra Bechstein, Kurze 

 Uebers., 1811, 327. — MotadUaflavcscens Stephens, Shaw's Gen. Zoal., pt. 2, 1817, 559. — 

 MotacUla neglecta Gould, Proc. Zool. Soc. Lond., 1833, 129; Birds Europe, ii, 1837, 

 pi. 146.—Motacina goaldl Macgillvray, Man. Brit. Birds, i, 1840, \&i.— MotacUla flava 

 vidgaris Sundevall, Ofv. k. Yet.-Ak. Forh. Stockh., 1840, 53. — Budytes fasciatus 'Br ehvci, 

 Vogelf., 1855, 141. 



b MotacUla flaveola (part) Pallas, Zoogr, Rosso-Asiat., i, 1826, 501. — MotacUla. flava 

 (not of Linnteus) Middendorff, Sibir. Reise, ii, pt. 2, 1853, 168; Schrenck, Reise 

 Amurl., i, 1860, 345; Radde, Reisen Siiden Ost-Sibir,, ii, 1863, 229; Sharpe, Cat. 

 Birds Brit. Mus., x, 1885, 516, part. — Bndytes flava Swinhoe, Proc. Zool. Soc. Lond.) 

 1863, 274 (n. China; crit. ); Taczanowski, Journ. fiir Orn., 1875, 252 (Ussuri). — 

 Budytes flavus Swinhoe, Proc. Zool. Soc. Lond., 1871, 364 {China).— Budytes leucostri- 

 atus Homeyer, Journ. fiir Orn., xxvi, Jan., 1878, 128 (Baikal). — Budytes flavus 

 leucostriatus Stejneger, Bull. U. S. Nat. Mus., no. 29, 1885, 280 (Bering islands and 

 Petropaulski, Kamchatka; syn., crit., etc.). — Budytes leucostrkt Taczanowski, Bull. 

 Soc. Zool. France, 1882, 389. 



<'The series of young birds available is much too small to enable me to give sub- 

 specific characters. 



''Type no. 73231, coll. U. S. Nat. Mus., adult male, St. Michael, Alaska, June 1, 

 1877; L. M. Turner. 



