186 Proceedings of the Biological Society of Washington. 



Pipromorpha oleaginea parca (Bangs). 



Mionedes assimilis? (not of Sclater) Lawrence, Ann. Lye. Nat. Hist. N. Y., 

 VII, 1861, 328 (Panama Railway, Panama; crit.). 



Mionedes oleagineus (not Muscicapa oleaginea Lichtenstein) Sclater 

 and Salvin, Proc. Zool. Soc. London, 1864, 358 (Lion Hill, Panama; 

 crit.); 1879, 512 (Remedies, Antioquia, Colombia). — von Berlepsch, 

 Journ f. Orn., XXXII, 1884, 299 (Bucaramanga, Colombia). — Salvin 

 and GoDMAN, Biol. Centr.-Am., Aves, II, 1888, 22, part (Lion Hill, 

 Panama; extralimital range, part). — Bangs, Proc. Biol. Soc. Washington, 

 XII, 1898, 136 ("Santa Marta," Colombia).— Allen, Bull. Am. Mus. 

 Nat. Hist., XIII, 1900, 149 (Bonda, Minca, and Cacagualito, Colombia). 

 — Bangs, Auk, XVIII, 1901, 28 (San Miguel Island, Panama; crit.). 



[Mionedes oleagineus] a. Subsp. assimilis Sclater, Cat. Birds Brit. Mus., 

 XIV, 1888, 113, part (Panama). 



Mionedes oleagineus parous Bangs, Proc. New England Zool. Club, II, 

 1900, 20 (Loma del Leon [Lion Hill], Panama; orig. descr.; type now in 

 coll. Mus. Comp. Zool.).— Bangs, Auk, XVIII, 1901, 362, in text (crit.). 

 Hellmayr, Nov. Zool., XIII, 1906, 22, in text (crit.). 



Mionedes parous Sharpe, Hand-List Birds, III, 1901, 114 (ref. orig. descr.; 

 range ) . 



Mionedes oleaginus oleaginus Thayer and Bangs, Bull. Mus. Comp. Zool., 

 XLVI, 1905, 151 (San Miguel Island, Panama; crit.). 



Pipromorpha oleaginea parca Ridgway, Bull. U. S. Nat. Mus., No. 50, IV, 

 1907, 454 (diag.), 457 (descr.; range; references; meas.; crit.). — Chap- 

 man, Bull. Am. Mus. Nat. Hist., XXXVI, 1917. 449 (Puerto Valdivia, 

 Honda, Chicoral, Andalucia, and "Santa Marta," Colombia; Colom- 

 bian references; crit.). — Stone, Proc. Acad. Nat. Sci. Philadelphia, 1918. 

 264 (Gatun, Panama; descr. nest and eggs). — Rendahl, Arkiv for 

 Zoologi, XIII, No. 4, 1920, 34 (Viveros, Pearl Islands; crit.). 



Subspecifio oharaoters. — Differs from Pipromorpha oleaginea pallidiventris 

 in its paler coloration throughout, this particularly evident in the lighter 

 tone of the upper tail-coverts and tail. The posterior under parts may be 

 described as deep buff yellow, which gradually passes into yellowish citrine 

 on the throat. 



Measurements— Male: wing, 60-64 (62); tail, 45-48 (46.5); bill, 10-11 

 (10.5); tarsus, 13.5-15.5 (14.5). Female: wing, 56-61 (59); tail, 41-47 

 (44);biU, 9.5-11 (10); tarsus, 12.5-14.5 (13.5). 



Range. — Tropical Zone of northern Colombia, including the Santa Marta 

 region, and the valleys of the Magdalena, Cauca, and Atrato Rivers, to 

 and including the Isthmus of Panama and the Pearl Islands. 



Remarks. — Lawrence remarked the peculiarties of Panama specimens 

 of this group as far back as 1861, but later authors discounted the signifi- 

 cance of their characters, and it was not until 1900 that Mr. Bangs came 

 to the conclusion that they were referable to a hitherto unrecognized race 

 of "Mionedes" oleagineus, which he proceeded to describe forthwith. At 

 that time he considered that the bird of the Pearl Islands was nearer true 



