450 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



De Schauensee " records specimens from Bua Yai, Chiengmai, 

 Keng Koi, under the name Muscicapula tickelliae indochina; the female 

 from Konken, with only the tail washed with blue, most likely belongs 

 to some other form; he also records it from Tamuang and Sriracha 

 under Muscicapula tickelliae sumatrensis,*^ but whether these two 

 nominal races are synonymous I do not know. Certamly I have seen 

 no female of C. tickelliae sumatrensis that is as bright above as depicted 

 upon the plate by Chasen and Kloss cited above, but I have not ex- 

 amined any specimens from the Malay States. The females that I 

 have called sumatrensis are more like the Chasen and Kloss's figure of 

 Indochina. 



Stresemann and de Schauensee *^ have exandned the type of C. 

 ruheculoides chersonesites Oberholser and pronounced it an aberrant 

 sumatrensis, but I hardly believe this is the correct solution. The 

 type of chersonesites is darker than sumatrensis, and the dark blue of 

 the cheeks extends onto the throat and occupies more space on the 

 chin, leaving the russet of the chest to extend forward in a narrow 

 wedge-shaped line; the chest is much darker. It most certainly 

 belongs to the ruheculoides group of forms, and it is close to if not 

 identical with glaucicomans. 



CYORNIS RUBECULOIDES GLAUCICOMANS Thayer and Bangs 



Cyornis tickelliae glaucicomans Thayer and Bangs, Bull, Mus. Comp. Zool., vol. 



52, p. 141, 1909 (Tanswioyah, Hupeh, China). 

 Cyornis ruheculoides chersonesites Oberholser, Proc. Biol. Soc. Washington, vol. 



33, p. 85, 1920 (Trang, Peninsular Siam). 

 Cyornis anak Robinson and Kloss, Journ. Federated Malay States Mus., vol. 10, 



p. 261, 1922 (Trang, Peninsular Siam). 



One male Tha Lo, Bandon, September 22, 1931. 



Dr. W. L. Abbott collected an adult male at Lay Song Hong, 

 Trang, November 11, 1896, and the type of chersonesites at Trang, 

 February 15, 1897. 



These specimens have been compared with a small series of poorly 

 prepared skins of glaucicomans from Szechwan with which they agree 

 fairly well, except the type of chersonesites, which is lighter blue above, 

 but below it agrees. In Szechwan specimens the blue does not extend 

 down the chin so far as it does in the three Peninsular Siamese speci- 

 mens. 



Robinson and Kinnear ^° give the range of this form as Hupeh, 

 Szechwan, and Yunnan, China, apparently wintering in the Malay 

 Peninsula. They also record it from Ayuthia, Koh Lak, and Trang in 

 their list of specimens under the form. 



" Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 215, 1034. 

 «8 Ibid., p. 216. 



" Proc. Acad. Nat. Sci. Philadelphia, vol. 88, p. 341, 1936. 

 M Nov. Zool., vol. 31, p. 234, 1928. 



