370 BULLETIN IS 6, UNITED STATES NATIONAL MUSEUM 



more northern peaks, for Smith collected six examples on Langka 

 between November 10 and 17, 1930, while de Schauensee's men shot ten 

 on Pha Horn Pok between February 6 and 24, 1938. 



Smith took a specimen in post juvenal molt on Doi Hua Mot, August 

 30, 1931 ; his November birds from Langka are all adults in postnuptial 

 molt. 



From the preceding race this one differs (in our provinces) in having 

 the front, crown, and nape more strongly suffused with violet-blue 

 (this color so deep immediately above the supercilium as to form a 

 definite stripe), the forehead and forecrown with ill-defined blackish 

 shaft streaks; the whole mantle strongly suffused with fulvous; the 

 white underparts more or less suffused everywhere (except on the lower 

 belly and the under coverts of wings and tail) with violet-ashy. 



SIVA CYANOUROPTERA WINGATEI OgUvie Grant 

 YUNNANESE BLUE-WINGED SlVA 



Siva toingatei Ogilvie Grant, Bull. Brit. Orn. Club, vol. 10, 1000, p. 38 (Yunnan-fu, 

 Yunnan). 



Three specimens taken by me at high elevations on Phu Kha, April 

 9 and 10, 1936, are in badly worn and somewhat discolored plumage 

 but seem to be inseparable from S. c. wingatei. 



A bird of April 9 had the ovaries greatly enlarged. 



From the examples that 1 have called oatesi these differ in having 

 the supercilium edged above by a blue-washed black stripe and the 

 feathers of front and forecrown with clearly defined black shaft 

 streaks; the mantle olivaceous-brown, with rather less fulvous suf- 

 fusion ; the suffusion over the underparts somewhat stronger and more 

 vinaceous-ashy. 



For a discussion of the difficulties attendant upon subspecific de- 

 termination of northern Thai populations of the blue-winged siva, cf. 

 Deignan, Notulae Naturae Acad. Nat. Sci. Philadelphia, No. 100, May 

 1942. 



SIVA CASTANICEPS STRIATA (Blyth) 



Tenasserimese Striated Siva 



Ixulus strlatus Blyth, Journ. Asiat. Soc. Bengal, vol. 28, 1859, pp. 413-414 

 ("Mountainous interior of the Tenasserim provinces"; type specimen "ob- 

 tained . . . near Tretoungplee, a place at an elevation of about 3,000 feet, 

 about 10 miles W. N. W. from the Peak of Mooleyit," fide Hume, Stray 

 Feathers, vol. 6, 1878, p. 374) . 



Staphidia striata striata, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 

 1929, p. 535 (Doi Suthep) ; 1934, p. 195 (Doi Suthep).— Chasen and Boden 

 Kloss, Journ. Siam Soc. Nat. Hist. Suppl., 1932, p. 245 (Doi Suthep).— Riley, 

 U. S. Nat. Mus. Bull. 172, 1938, p. 357 (Khun Tan, Doi Langka). 



