536 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



yellow, more or less concealed by long yellowish-gray feathers grow- 

 ing from the sides of the lower back ; the upper tail coverts and the 

 basal two-thirds of the greatly elongated central pair of rectrices 

 metallic blue, their apical third and the remaining rectrices dull black 

 (some narrowly edged with metallic blue) ; the wings dull black; a 

 long mustachial streak (extending to the upper breast) at each side 

 of the throat metallic blue or violet-blue; the sides of the head, the 

 chin, throat, and center of the upper breast black; the lower breast 

 and upper abdomen bright light yellow, irregularly and finely 

 streaked with blood-red, changing to uniform olivaceous-yellow on 

 the remaining underparts. The adult female has the rump band 

 light yellow; the remaining upperparts olive-green, grayer on the 

 head and nape (the remiges edged rufescent) ; the chin, throat, and 

 upper breast olivaceous-gray, changing to pale olivaceous-yellow on 

 the remaining underparts; the rectrices indistinctly tipped white 

 beneath. 



AETHOPYGA GOULDIAE DABRYII (Verreaux) 

 SZECHWANESE BLUE-THROATED SUNBIRD 



Nectarinia Dabryii Verreaux, Rev. Mag. Zool., ser. 2, vol. 19, 1867, pp. 173-174, 

 pi. 15 ("le nord de la Chine"; type locality corrected to "the hills above 

 Ta-tsien-leou, which border the eastern [sic] boundary of the Chinese prov- 

 ince of Sechnen [sic]," by Sclater, Ibis, 1870, p. 297; see Deignan, Auk, 1944, 

 pp. 133-135). 



AEthopyga dabryi, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1928, p. 

 561 (Doi Suthep) ; 1929, p. 563 (Doi Suthep).— Deignan, Journ. Siam Soc. 

 Nat. Hist. Suppl., 1931, p. 155 (Doi Suthep). 



AEthopyga gouldiae dabryi, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 

 1934, p. 241 (Doi Chiang Dao). — Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 

 1936, p. 124 (Doi Suthep). 



AEthopyga dabryii dabryii [partim], Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 498 

 (Doi Suthep, Doi Langka). 



AEthopyga gouldiae harrietae, Delacour and Greenway, L'Oiseau et la Revue 

 Frangaise d'Ornithologie, 1940, p. 69 (Doi Ang Ka). 



The blue-throated sunbird is an uncommon winter visitor to the 

 higher mountains of the provinces west of (and including) the Khun 

 Tan range, from 4,500 to 5,500 feet ; a male collected by de Schauensee 

 on Doi Suthep at 1,500 feet (March 11, 1928) must be considered a 

 straggler from the top of the mountain. The extreme dates for its oc- 

 currence with us are November 4 (1930) on Doi Langka and March 18 

 (1937) on Doi Chiang Dao. 



At suitable elevations, this species may be seen at the same places as 

 A. s. sanguinipectus, although, of course, always in inferior numbers. 



The sequence of molts in this form is difficult to understand. A 

 young male of November 4 is already beginning to acquire the first- 

 nuptial plumage; an apparently adult male of November 11 is near 



