ORDER PASSERES. 365 



b. Ixoreus nsevius meruloides (SWAINSON). Northern Varied Thrush. [763a.] 

 Orpheus meruloides SWAINSON, Fauna Bor.-Am., IT, 1831 (1832), 187, 

 pi. 38. (Fort Franklin, Great Bear Lake, Mackenzie.) 



RANGE. Western North America. Breeds in Hudsonian and upper 

 Canadian zones from the Yukon Delta, Kowak Valley, and Mackenzie Delta 

 south to Prince William Sound, Alaska, and southern part of Mackenzie Valley, 

 and south in mountains through eastern British Columbia to northwestern 

 Montana and northeastern Oregon; winters mainly in the interior of Cali- 

 fornia south to Los Angeles County. 



[GENUS CYANOSYLVIA BREHM. 



Cyano-sylvia BREHM, Isis, XXI, 1828, 920. Type, by monotypy, Mota- 

 tilla suecica LINNJEUS. 



Cyanosylvia suecica (LINNAEUS). 



RANGE. Northern parts of Europe and Asia. Breeds within the 

 Arctic Circle from the Scandinavian Peninsula to Siberia and south- 

 ward in the higher parts of central Asia; winters in Abyssinia and 

 southern Asia; casual in western Alaska. 



a. [Cyanosylvia suecica suecica. Extralimital.] 



b. Cyanosylvia suecica robusta (BUTURLIN). Siberian Red-spotted Blue- 



throat. [764.] 



Cyanecula suecica robusta BUTURLIN, Orn. Monatsber., XV, 1907, 79. 

 (Kolyma Delta, Siberia.) 



RANGE. Siberia, breeding from the Tunguska Valley eastward, and south 

 to China in winter; casual in western Alaska.] 



GENUS SAXICOLA BECHSTEIN. 



Saxicola BECHSTEIN, Orn. Taschenb. Deutschl., I, 1802, 216. Type, 

 by subs, desig., Motacilla cenanthe LINN^US (Gray, 1841). 



Saxicola oenanthe (LiNN^us). 



RANGE. Northern Europe and Asia, Alaska, Greenland, and 

 northeastern Arctic America; south in winter to Africa and southern 

 Asia. 



