556 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



species captive in northern Thailand and feel that it must be accepted 

 as a valid addition to our avifauna. 



The bird is a male, acquiring the eclipse plumage, but retaining 

 enough of the nuptial dress to place it unmistakably with the nominate 

 form. 



It had the irides red ; the bill red ; the feet, toes, and claws flesh. 



The nuptial male has the feathers of the upperparts brown, broadly 

 tipped with crimson (which disappears with wear), the upper tail 

 coverts brighter, with concealed blackish bases and each feather with 

 a tiny white spot at the tip ; the wings dark brown, each feather (in- 

 cluding the coverts) with a round white spot at the tip ; the tail black, 

 each feather with an outwardly increasingly conspicuous white tip; 

 the underparts crimson, changing to black on the center of the abdo- 

 men, the lower flanks, thighs, and under tail coverts (each feather 

 of the sides of the breast and abdomen with a small white spot at the 

 tip). The female and the nonbreeding male differ in having the 

 crimson of the upperparts restricted to the upper tail coverts and the 

 underparts gray-brown, changing to buffy-cream on the center of the 

 abdomen and to whitish on the under tail coverts. Juveniles are like 

 the female but have the upper tail coverts concolorous with the remain- 

 ing upperparts. 



From E. a. punicea, which seems to be the resident race of Central 

 Thailand, this specimen is separable by having the wing longer 

 (46.5 mm.), the lores black instead of red, and the white dots every- 

 where larger. From fla/vidiventris of Burma and the Shan States 

 it is immediately distinguishable by having the abdomen black instead 

 of orange-yellow. 



LONCHURA STRIATA ACUTICAUDA (Hodgson) 



Himalayan White-rumped Munia 



M[unia] Acuticauda Hodgson, Asiatic Researches, vol. 19, 1836, pp. 153-154 



(Nepal). 

 Uroloncha acuticauda, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1913, 



p. 40 (Khao Phlung) ; Journ. Nat. Hist. Soc. Siam, 1915, p. 170 (listed). 

 Uroloncha acuticauda squamicollis, Gyldenstolpe, Kungl. Svenska Vet.-Akad. 



Handl., 1916, p. 28 (Khun Tan, Pang Hua Phong) ; Ibis, 1920, p. 457 (Khun 



Tan, Pang Hua Phong). 

 Uroloncha acuticauda acuticauda, Gyldenstolpe, Ibis, 1920, p. 457 ("Throughout 



the whole country"). 

 Uroloncha striata acuticauda, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1931, 



p. 152 (Chiang Mai, Doi Suthep) ; 1936, p. 126 (Chiang Mai, Doi Suthep).— 



de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1934, p. 235 (Chiang 



Mai, Doi Suthep). 

 Munia striata acuticauda, Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 528 (Doi 



Hua Mot, Ban Nam Khian). 



