350 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



to the nape; the mantle gray, the upper tail coverts tipped black; 

 the wings black, the primaries conspicuously tipped and edged along 

 the inner web with white, the inner secondaries with the outer web 

 deep golden, the inner web chestnut, and a narrow black tip ; the tail 

 black; the underparts white, more or less strongly washed with gray 

 on the throat, breast, and upper flanks, with vinaceous-pink on the 

 lower flanks. The adult female has the upper half of the head gray 

 (the supercilium merely indicated), this color changing on the nape 

 to the grayish olive of the mantle; the primaries black with white 

 tips and the outer web edged bright olive-green ; the inner secondaries 

 bright olive-green, strongly suffused with chestnut-rufous; the inner 

 pairs of rectrices bright olive-green, tipped with black, the outer pairs 

 similar but tipped apically with yellow and subterminally with black ; 

 the underparts white, more or less strongly suffused everywhere with 

 pale buff. Juveniles of either sex resemble the old female but have 

 the under tail coverts pale yellow. 



PTERUTHIUS ERYTHROPTERUS YUNNANENSIS Ticehurst 



YUNNANESE WHITE-BROWED SHRIKE BABBLER 



Pteruthius erythropterus yunnanensis Ticehurst, Bull. Brit. Orn. Club, vol. 57, 

 1937, p. 147 ( Shweli-Salwin Divide, northwestern Yunnan). 



A race, which may conveniently be placed under this name, is com- 

 mon on Phu Kha between 3,500 and 5,500 feet and will doubtless be 

 found on other suitably high mountains in Nan Province. 



From aeralatus, it may be known by having (in the male) the throat, 

 breast, and upper flanks washed with a much deeper gray and by 

 having the white mustachial line below the black ear coverts distinctly 

 set off, instead of scarcely demarcated from the color of the throat. 



The female differs from that of aeralatus in having the throat gray, 

 with little or no buffy suffusion. 



The population of Phu Kha is, in fact, intermediate between yim- 

 nanensis and aeralatus, having the coloration of the former and the 

 measurements of the latter. 



MESIA ARGENTAURIS GALBANA Mayr and Greenway 



Thai Silver-eared Mesia 



Mesia argentauris galbana Mayr and Greenway, Proc. New England Zool. Club, 

 vol. 17, 1938, pp. 3-1 (Doi Ang Ka, North Thailand). 



Mesia argentauris argentauris, de Schauensee, Proc. Acad. Nat. Sci. Philadel- 

 phia, 1929, p. 536 (Doi Suthep) ; 1934, p. 197 (Doi Suthep).— Chasen and 

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

 Deign an, Journ. Siam Soc. Nat. Hist. Suppl., 1936, p. 108 (Doi Suthep). 



Mesia argentauris, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1931, p. 139 (Doi 

 Suthep). 



