170 U.S. NATIONAL IMUSEUM BULLETIN 226 



Subfamily SYLVIINAE 



Genus SEICERCUS Swainson 



Seicercus burkii tephrocephalus (Anderson) 



Culicipeta tephrocephalus [sic] Anderson, Proc. Zool. Soc. London, 



for 1871, pt. 1, June 1871, p. 213 (Bhamo, Bhamo District, 



Kacbin State, Upper Burma). 



Range: A visitor from the North, reported on migration or in winter 



from the northern plateau, the northwestern portion of the eastern 



plateau (Loei), and the southeastern provinces (Chanthaburi) . 



Seicercus burkii distinctus (La Touche) 



Cryptolopha burkii distincta La Touche, Bull. Brit. Orn. Club, 



vol. 43, No. 272, Nov. 29, 1922, p. 41 (Mengtsz [lat. 23°23' N., 



long. 103°27' E.], Yunnan Province, China). 



Range: A visitor from the North, reported on migration or in winter 



from the northern plateau (Chiang Rai, Mae Hong Son, Chiang Mai, 



Lampang, Nan, Uttaradit) and the northwestern portion of the 



eastern plateau (Loei, Phetchabun). 



Seicercus poliogenys (Blyth) 



C[ulicipeta]. poliogenys Blyth, Journ. Asiatic Soc. Bengal, vol. 16, 

 pt. 1, [not earlier than May] 1847, p. 441 (Darjeeling, Dar- 

 jeeling District, Bengal State, India). 

 Range: Reported only from the eastern portion of the northern 

 plateau (Nan). 



Seicercus castaniceps collinsi Deignan 



Seicercus castaniceps collinsi Deignan, Proc. Biol. Soc. Washing- 

 ton, vol. 56, No. 5, Feb. 25, 1943, p. 29 (Doi Langka=Khao 

 Pha Cho [lat. 19°00' N., long. 99°25' E.], Cliiang Mai Province, 

 Thailand). 

 Range: Mountains of the western portion of the northern plateau 

 (Chiang Mai) . 



Seicercus castaniceps youngi (Robinson) 



Cryptolopha youngi Robinson, Joum. Federated Malay States 

 Mus., vol. 5, No. 3, March 1915, p. 100 (Khao Nong [lat. 8°55' 

 N., long. 99°38' E.], Surat Thani Province, Thailand). 

 Range: Mountains of the peninsular provinces south of the Isthmus 

 of Kra (Surat Thani, Nakhon Si Thammarat). 



Genus ABROSCOPUS Stuart Baker 



Abroscopus superciliaris draslicus Deignan 



Abroscopus superciliaris drasticus Deignan, Proc. Biol. Soc. 

 Washington, vol. 60, No. 4, Apr. 3, 1947, p. 20 (Margherita, 

 Lakhimpur District, Assam State, India). 



