KUNGL. SV. VET. AKADEMIENS HANDLINGAR. HAND 56. NIO 2. 77 



Iii colouration it vcry much rescmbles C. tickellice. Blytii hut is distinguished by 

 a smaller sizc au<l by having fche abdomcn, under tail-coverts, axillaries and under 

 wing-coverts pure whitc. 



The female specimen I. obtained agrees exactly with the description given by Ro- 

 binson and Kloss (Ihis 1911 p. 52). 



140. Cyornis banyumas tickelliae. Blytii. - TickelFs Blue Flycatcher. 



Cyornis tickellice: Gyldenstolpe I p. 37. 

 Cyornis banyumas tickclli: Robinson III p. 743. 



J Koon Tan 18 /s 1914. L = 137 mm.; W == 73 mm.; T = 68 mm.; C = 12 mm. - J 1 Koon Tan 

 18 /n 1914. L = 129 mm.; W = 70 mm.; T = 64 mm.; C = 12 mm. — Irides: brown. Bill: black. Legs: 

 plumbeous grey. 



Tvvo male specimens of TickelFs Blue Flycatcher were obtained among the Hills 

 near Koon Tan. i 



As I have already stated about C. sumatrensis Sharpe., which this species closely 

 resembles, it is distinguished by its greater size. Both the specimens obtained are in 

 moult and have a very abraded plumage. 



141. Cyornis pallidipes. Jerd. — The White-bellied Blue Flycatcher. 



Cyornis pallidipes hainana; Robinson III p. 743. 



J Koon Tan, May 1914. W = 69 mm.; T = 63 mm.; C = 10,3 mm.; Tarsus = 16 mm. — J Pak 

 Koh 15 /i 1914. L = 132 mm.; W = 67 mm.; T = 61,5 mm.; C = 11 mm.; Tarsus = 16 mm. — Irides: 

 black. Bill: black. Legs: påle brown. 



Two male specimens of this beautiful Flycatcher were obtained in Northern Siarn. 

 Boden Kloss collected one male at Klong Menao in South Eastern Siarn during his re- 

 cent journey and this specimen has been referred by Robinson to Cyornis pallidipes 

 hainana Grant, originally described from Hainan (Proc. Zool. Soc. 1900 p. 480). 



As compared with the measurements given by Grant (tom. cit. ) my specimens 

 are practically intermediate between the Hainan form and typical Cyornis pallidipes 

 Jerd. from Southern India. 



Tlie Siamese specimens show a close relation to the Hainan form, as is also the case 

 with several other species. This close relationship seems to indicate that a centre of distri- 

 bution was situated somewhere east of the Salween river thus including South Eastern 

 China, Hainan, Annam, Tonkin, Cambodia, Cochin China, Siarn, Yunnan and parts of 

 Burma. From this centre the different forms have then spread out in a western 

 direction, while the Himalayan forms made their way southwards. 



The specimens of Cyornis pallidipes obtained by me are neither typical Cyornis 

 pallidipes Jerd. nor Cyornis pallidipes hainana Grant, and as the difference between 

 these two forms are very slight I think it wisest not to give a subspecific name to the 

 Siamese form until more material has been obtained. 



