548 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



sole member of its genus to dwell in such environments. It possesses 

 the same swift, dashing flight and clicking notes as its lowland rela- 

 tives. 



Two specimens collected by Smith on Doi Hua Mot, August 21, are 

 in postjuvenal molt. 



The adult male has the entire upperparts metallic blue-green (rarely 

 metallic blue) ; the sides of the head and throat, neck, and breast 

 black; the underparts buff (washed with olive-green along the flanks), 

 with a large and not clearly defined patch of scarlet on the breast 

 and a narrow streak of black running mesially from the lower breast 

 to the middle of the abdomen or beyond ; the under wing coverts and 

 axillaries pure white. The adult female has the upper parts dull 

 olive-green, brightening to golden olive-green on the rump and upper 

 tail coverts; the rectrices black, glossed with blue-green; the sides 

 of the head and throat, neck, and breast olive-gray; the remaining 

 underparts buff (washed with olive-green along the flanks) ; the un- 

 der wing coverts and axillaries pure white. 



While Chasen (Handlist of Malaysian birds, 1935, p. 269) makes 

 D. monticolum a subspecies of sanguiiiolentum, Stresemann avers 

 (Journ. fiir Orn., vol. 88, 1940, p. 51) that U D. celeoicum gehort der 

 schwer zu gliedernden australisch-papuanischen Gruppe D. hirun- 

 dinaceum an, die nur mit einem einzigen Vertreter, D. monticolum 

 Sharpe vom Kina Balu, die Wallace'sche Linie westwarts iiberschritten 

 zu haben scheint." Outwardly, however, D. monticolum seems to be 

 no less distinct from either sanguinolentum or hirundinaceum than 

 these latter two are from each other. 



It is my opinion that conflicting views may most easily be reconciled 

 by the acceptance of a superspecies D. hirundinaceum, which will then 

 embrace all the forms treated by Chasen and Stresemann, as well as 

 certain forms of the Philippine Islands (one of which, D. luzoniense, 

 might be considered an intermediate between hirundinaceum and ig- 

 nipectusl). 



dicaeum chrysorrheum chrysochlore biyth 



Indo-Chinese Yellow-vented Flowerpecker 



Dicaeum chrysochlore Blyth, Journ. Asiat. Soc. Bengal, vol. 12, 1843, p. 1009 



(Arakan). 

 Dicaeum chrysorhoeum, Gyldenstolpe, Journ. Nat. Hist. Soe. Siam, 1915, p. 171 



(listed). 

 Dicaeum chrysorrhaeum [partim], Gyldenstolpe, Ibis, 1920, p. 465 ("Throughout 



the whole country" [partim]). 

 Dicaeum chrysorrheum chrysochlore, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 



1931, p. 156 (Doi Suthep) ; 1936, p. 125 (Doi Suthep). 



An unsexed and undated specimen from "Siam," sent by Eisen- 

 hofer to Hannover and listed by Gyldenstolpe (1915), probably came 



