Todd — Studies in the Tyrannidce. 25 



1882, 312 ("S. America"; references). — Taczanowski, Proc. Zool. Soc. 

 London, 1882, 21 (Yurimaguas, Peru). — Taczanowski, Orn. Perou, 

 II, 1884, 298 (Xeberos, Chyavetas, and Yurimaguas, Peru; descr.; 

 references). — Salvin, Ibis, 1885, 297 (Bartica Grove, Merum^ Moun- 

 tains, Camacusa, Mount Roraima, and Atapurow River, British Gui- 

 ana). — Tristram, Cat. Coll. Birds, 1889, 124 (Cayenne, French Guiana). 

 — Sharpe, Hand-List Birds, III, 1901, 131 (range). — von Bbrlepsch 

 and Hartert, Nov. Zool., IX, 1902, 49 (Suapure and La Pricion, 

 Caura River, Venezuela; British Guiana; crit.). — Dubois, Syn. Avium, 

 I, 1902, 245 (references; range). — Snethlage, Bol. Mus. Goeldi, V, 1907, 

 49, part (Bom Lugar, Rio Purijs, Brazil). — von Berlepsch, Ornis, 

 XIV, 1907, 481, in text (crit.).— von Berlepsch, Nov. Zool., XV, 1908,. 

 129 (Ipousin, Rio Approuage, and Oyapoc, French Guiana). — Penard, 

 Vogels van Guyana, II, 1910, 254 (Guiana; descr.; habits; crit.). — Todd, 

 Ann. Carnegie Mus., VIII, 1912, 208, in text (crit.). — Brabourne and 

 Chubb, Birds S. Am., I, 1912, 296 (ref. orig. descr.; range). — Snethlage, 

 Bol. Mus. Goeldi, VIII, 1914, 391, part (St. Antonio do Cachoeira and 

 Obidos, BrazU).— Chubb, Birds Brit. Guiana, II, 1921, 215 (British Gui- 

 ana localities and references; descr.). 

 Myiobius barbata Bonaparte, Consp. Avium, I, 1850, 187 (range; refer- 

 ences [part]). 

 Myiobius xanthopygius (not Platyrhynchus xanthopygus Spix) Sclater, 



Proc. Zool. Soc. London, 1866, 189 (upper Ucayali River, Peru). 

 [Myiobius barbatus] h. subsp. Ujpica Sclater, Cat. Birds Brit. Mus., XIV, 

 1888, 200, part (Bartica Grove, Atapurow River, Camacusa, and 

 Mount Roraima, British Guiana; Oyapoc, French Guiana; references). 

 Myiobius sulphureipygius (not of Sclater) Menegaux, Bull. Mus. d'Hist. 

 Nat. Paris, 1904, 118 (Saint Georges d'Oyapock and Saint Jean du 

 Maroni, French Guiana; range). 

 Myiobius barbatus barbatus Hellmayr, Abhand. K. Bayerischen Akad, 

 Wiss., II Kl., XXII, 1906, 642 (ref. orig. descr.; diag.; range; Natterer's 

 specimens).— RiDGWAY, Bull. U. S. Nat. Mus., No. 50, IV, 1907, 487 

 (diag.; references). — Hellmayr, Nov. Zool., XIII, 1906, 362, part 

 (British Guiana and Caura River, Venezuela; crit.); XIV, 1907, 357, 

 part (British Guiana); XVII, 1910, 299 (Borba, Rio Madeira, Brazil, ex 

 von Pelzeln; crit.). — Hellmayr, Proc. Zool. Soc. London, 1911, 1135, 

 1136 (range; crit.). — Cherrie, Mus. Brooklyn Inst. Sci. Bull., II, 1916. 

 242 (Caura River, Venezuela, ex von Berlepsch and Hartert). — Chap- 

 man, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 465 (Florencia and 

 La Morelia, Colombia; British Guiana). — Bangs and Penard, Bull. 

 Mus. Comp. Zool., LXII, 1918, 78 (Jaraweg, Dutch Guiana). 

 Mijiobius barbatus subsp. Snethlage, Journ. f. Orn., LVI, 1908, 11 (Bom 



Lugar, Rio Purtis, Brazil; crit.). 

 Myiobius barbatus xanthopygus Snethlage, Bol. Mus. Goeldi, VIII, 1914, 

 391 (Bom Lugar, Rio Puriis, Brazil; diag.). 



Description. — Male: above olive green, the pileum with a partially con- 

 cealed median vertical spot of lemon chrome; rump Martins yellow; wings 

 dusky brown, externally buffy brown or buffy olive, the secondaries- 



