388 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



OTOCOMPSA JOHNSONI (Gyldenstolpe) 



Rubigvla johnsoni Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., vol. 50, 

 no. 8, p. 25, pi. 1, fig. 3, 1913 (Sakerat, Korat Plateau, eastern Siani). 



Two females, Knong Phra, near Pak Chong, February 25, 1924, 

 April 16, 1929; four males and eight females, Pak Chong, May 9, 18, 

 1925, November 19, 1925, May 5, 10, 1926, November 19-29, 1929; 

 one male. Pang Sok, August 21, 1926; one unsexed, Tha Chong, 

 March 14, 1929; two males and two females, Lat Bua Kao, July 30- 

 August 6, 1929; three males, Hin Lap, December 6, 1931, October 2, 

 1932. 



All these localities are in eastern Siam. One of the Pak Chong 

 males taken on November 27 has a black thi'oat like Jlaviventris but 

 is acquiring a few red feathers on the lower throat. A male taken 

 by C. Boden Kloss at Lat Bua Kao, October 16, has a few red barbs 

 to some of the feathers of the lower throat. A young female taken 

 by Dr. Smith at the same locality has the throat yellow and the red 

 coming in without the intervening black stage. This does not agree 

 with Kloss's remarks.^" It seems possible that the black-throated 

 specimens showing a few red barbs to the feathers are not really 

 hybrids but immature birds acquiring the adult plumage. 



So far as known, 0. johnsoni is confined to eastern Siam. Kloss " 

 thinks it is confined to the Korat Plateau and later ^^ defines the range 

 more precisely as east of the Menam Chao Phaya and north of the 

 latitude of Bangkok. 



It resembles 0. dispar of Java in having a red throat, but is a duller 

 colored bird. 



Gyldenstolpe's *'^ inclusion of Nakon Sritamarat in the range of 

 this species is undoubtedly erroneous and that of de Schauensee *' for 

 the same locality also; the latter states that it has a black throat.. 

 His specimens from Kengkoi and Nakon Nayok are evidently correct, 

 as they have red throats, but they are in the range of the species. 



It is strange that, if red-throated specimens ever occur in south- 

 eastern, southern, and Peninsular Siam, none appears in the large 

 scries of 0. j. minor, consisting of nearly 40 specimens, in the United 

 States National Museum. 



EUPTILOSUS EUTILOTUS ( Jardlne and Selby) 



Brachypus eulilotus J.-vrdine and Selby, Illustrations of ornithology, new ser., 

 no. 1, pi. 3 and text, 1837 (Singapore). 



Dr. W. L. Abbott took one unsexed specimen, Lay Song Hong, 

 Trang, September 28, 1896; one male, Dungun River, Trengganu, 



«» Ibis, 1918. p. 202. 



M Journ. Nat. Hict. Soc. Siam, vol. 3, p. 450. 1919. 



•' Journ. Nat. Hist. Soc. Siam, vol. 4, p. 52, 1921. 



»» Ibis, 1920, p. 492. 



•• Proc. Acad. Nat. Scl. Philadelphia, vol. 86, p. 203, 1934. 



