A COLLECTION OF BLRDS FROM S E. SUMATRA. 125 



209. Buchanga leucophaea batakensis. subsp. nov. 



4 & , 2 2 , Bandar Baroe. Deli. X. E. Sumatra, 10th — Kth 



'April 1917 [Xos. 244-5, 280-2, 930]. 

 : . '=. . Sibajak, Sirueloengan. N". E. Sumatra, 18th June 

 1917 [Xos. 4:95. 497]. 



Wing, 6 . 127, 128, 126, 128, 126; 9, 126, 125 mm. 



These grey Drongos are amongst the most difficult of birds 

 to discriminate, but the present form is distinguished from 

 related races by having practically no black front band and 

 grey lores not very clearly defined but still paler than the 

 forehead and not bluish grey. 



Buchanga leucogenys. Walden, from the Xortk Malay 

 Peninsula is much paler with a longer tail, and the greater 

 part of the sides of the head white in adult birds. 



Buchanga stigmatops, Sharpe, is a pale bird with shortish 

 tail, a very clearly defined loral spot white and no black frontal 

 band. It is found in Borneo. 



Buchanga leucophaea, (Horsf.), is a darker bird with 

 dark lores, and a distinct black frontal band. It is found in 

 Java. 



Other forms occur in Indo-China but cannot at present 

 be dealt with. 



Buchanga leucophaea phaedra. Eeichnw.. Wissensch. 

 Ergebn. d. Deutsdi Tiefsee. Exped. Bd. VII, p. 356 (1904), 

 is closely related to B. stigmatops but has the white loral spot 

 less developed. 



Types of the sob-species ;' . ? , Bandar Baroe, X. E. Su- 

 matra, 10th October 1917 [Xos.' 245. 281]. 



210. Chaptia aenea mala\ ensis I A. Hay). 



ilayensiSj Hartert. p. 207. 

 : . 2 . Deli Toewa, Deli, X. E. Sumatra. 6th April 1317 



[No. 213]. 

 Wing, 2 . 100 mm. 



Apparently very small, a large series of males (curiously 

 enough we have no females) from the Malay Peninsula 

 measure 109-110 mm. with a much longer tail. 



211. Bhringa remifer Temni.). 



Eobinson and Kloss. p. 234. 

 £ . 2 . Bandar Baroe. Deli. X. E. Sumatra, tfth June 



1917 [Xos. 452. 453]. 

 :' . 2 . Tengkeh, Simeloengan, N". E. Sumatra. 2'»th Jane 



1917 [Xos. 521, 522]. 

 Wing, c , 128, 119 : 5 , 126, 127 mm. 

 The Sumatra n birds are probably strictly identical with 

 the typical Bh. remifer from Java bur out of the very large 

 number of specimens available practically none have the outer 

 rackets perfect so that it is at present impossible to arrive at 

 any definite conclusions. 



R. A. Soc. Xo. SO, 1919. 



