544 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



Unfortunately, despite the large number of specimens known from 

 our area, in no case has the condition of the gonads been noted. I 

 suspect that breeding takes place throughout both the hot weather 

 and the rains for, while Gyldenstolpe (1916) captured two young from 

 a nest at Khun Tan, September 11, 1914, I have myself collected a 

 bird already in postjuvenal molt on Doi Ang Ka, September 6, 1935, 

 and find postnuptial molt in an example obtained as early as May 4. 

 Postnuptial molt appears in others of June 4 and 13, September 6, 

 and November 20, but not in specimens of August 19 and 20, September 

 9, and October 4. 



Adults have the irides brown; the bill black; the interior of the 

 mouth and the concealed mandibular edges of the commissure yellow ; 

 the feet, toes, and claws orange-yellow. 



The streaked spider-hunter has the entire upperparts bright golden 

 olive-green, the feathers with black central spots which posteriorly 

 change to streaks; the rectrices olive-green, each with a broad black 

 subterminal band; the underparts creamy white, each feather with a 

 black central streak; the under tail coverts dark olive-green, broadly 

 tipped with pale yellow. 



I formerly believed that Arachnothera magna could not be divided 

 into subspecies. Specimens shown me by Ticehurst have convinced 

 me that the population of a limited portion of eastern Burma may 

 properly be separated as aurata, and a reexamination of Riley's remota 

 (South Annam) indicates that it also is distinguishable, at least in 

 series, from magna. 



Family DICAEIDAE 



DICAEUM CRUENTATUM SIAMENSE Boden Kloss 



Indo-Chinese Scarlet-backed Flowerpecker 



Dicaeum cruentatum siametisis [sic] Boden Kloss, Ibis, 1918, pp. 216-217 (Lat 



Bua Khao, East Thailand). 

 Dicaeum cruentatum, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, p. 171 



(listed). 

 Dicaeum cruentatum coccinea, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 



1916, p. 35 (Tha Chomphu). 

 Dicaeum cruentatum siamensis, Gyldenstolpe, Ibis, 1920, p. 465 ("Siam 



proper"). — de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1934, p. 243 



(Chiang Mai). 

 Dicaeum cruentatum ignitum, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 



1929, p. 564 (Doi Suthep, Chiang Mai, Chiang Saen). — Deignan, Journ. 



Siam Soc. Nat. Hist. Suppl., 1931, p. 155 (Chiang Mai). 

 Dicaeum cruentatum siamense, Deignan, Journ. Siam. Soc. Nat. Hist. Suppl., 



1936, p. 125 (Doi Suthep, Chiang Mai). 

 Dicaeum cruentatum ignitum [partim], Riley, U. S. Nat. Mus. Bull. 172, 1938, 



p. 513 (Mae Hong Son, Ban Nam Khian). 



