NOTES ON SOUTH AMERICAN BIRDS, WITH 

 DESCRIPTIONS OF NEW SUBSPECIES 



BY CHARLES B. CORY 



Since the publication of my previous paper on South American birds 

 received from Museum expeditions, further study of the collections has 

 brought to light several apparently new forms which are here described. 

 In this connection I wish to express my thanks to the authorities of 

 various museums and individuals for the loan of specimens for com- 

 parison, and especially to Prof. Robert Ridgway and Dr. C. W. Rich- 

 mond of the United States National Museum, Washington, D. C., to 

 Dr. F. M. Chapman of the American Museum of Natural History, New 

 York, to Dr. Witmer Stone of the Academy of Natural Sciences of 

 Philadelphia, and to Mr. J. Rodway of the Royal Agricultural and Com- 

 mercial Society of British Guiana. 



Threnetes leucurus rufigastra subsp. nov. 



Type from Moyobamba, Peru. Adult female, No. 47153, Field 

 Museum of Natural History. Collected by W. H. Osgood and M. P. 

 Anderson, January 24, 1912. 



Similar in size and general markings to T. I. leucurus from Guiana, 

 but differs in having the sides, flanks and abdomen decidedly more 

 brownish buff; back somewhat more bronzy green than in leucurus. 



Leucippus fallax richmondi nom. nov. 



In 1895 (Auk, XII, p. 369) Dr. C. W. Richmond separated the 

 Margarita Island form of Leucippus fallax, naming it Doleromya pallida. 

 It is apparently a perfectly good subspecies, the characters given for it 

 being well marked in a good series. Unfortunately, however, Dr. 

 Richmond's name pallida can not be used for it, being antedated by 

 Leucippus pallidus Taczanowski (Proc. Zool. Soc. Lond., Part 4, 1874 

 [1875], p. 542; and again in Orn. Perou, I, 1884, p. 402). I therefore 

 propose to name the pale Margaritan bird Leucippus fallax richmondi. 

 I have examined thirteen males and a female from Margarita Island, 



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