188 Proceedings of the Biological Society of Washington. 



[Myiarchus] tyrannulus. Var. chlorepiscius Dubois, Syn. Avium, I, 1902, 

 250 (ref. orig. descr.; range). 



[Myiarchus] tyrannulus. Var. bretdpennis Dubois, Syn. Avium, I, 1902, 

 250 (ref. orig. descr.; range). 



Miyarchus tyranny^ (lapsi) Gcbldi, Bel. Mus. Paraense, III, 1902, 293 

 (Saraydcu, Ecuador, ex Sclater). 



Myiarchus tyrannulus tyrannulus Clark, Proc. Boston Soc. Nat. Hist., 

 XXXII, 1905, 276 (Colombia; Margarita I., Venezuela; crit.). — Hell- 

 MAYR, Nov. Zool., XIII, 1906, 26 (Chaguaramas and Laventille, Trini- 

 dad; Tobago; Cumandand Orinoco River, Venezuela). — Cherrie, Mus. 

 Brooklyn Inst. Sci. Bull., I, 1908, 364 (Pointe Gourde, Trinidad); II, 



1916, 243 (Las Barrancas, Ciudad Bolivar, and Caicara, Venezuela; 

 descr. nest and eggs). — Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 



1917, 474 (La Playa, Colombia).— Beebe, Zoologica, II, 1919, 232 

 (Bartica District, British Guiana). — Todd and Carriker, Ann. Carnegie 

 Mus.. XIV, 1922, 347 (Santa Marta region, Colombia; references; crit.; 

 habits). 



Myiarchus mexicanus chlorepisdus von Berlepsch and Stolzmann, Ornis, 



XIII, 1905, 89 (Santa Ana, Peru; crit.). 

 Myiarchus tyrannulus brevipennis Hellmayr, Nov. Zool., XIII, 1906, 



26, in text (crit.). — von Berlepsch, Ornis, XIV, 1907, 476 (in list of 



species).— Cory, Field Mus. Orn. Series, I, 1909, 200 (Aruba), 207 



(Curagao), 212 (Bonaire), 216 (Los Roques I.), 225 (Blanquilla I., 



ex Lowe). 

 {l)Myiarchus oberi nugator? Ridgway, Bull. U. S. Nat. Mus., No. 50, IV, 



1907, 619 (Tobago; crit.). 

 {?)Myiarchus tyrannulus tobagensis Hellmayr, Verh. Orn. Ges. Bayern, 



XII, 1914, 89 (Man-of-War Bay, Tobago; orig. descr.; type in coll. 



Munich Mus.). 



Description. — Above deep grayish olive, the pileum more or less shaded 

 with brownish olive ; wings dusky, the primaries with narrow external edg- 

 ings of argus brown, and the secondaries similarly margined with dull white 

 or cream color, the margins becoming wider on the tertiaries, and all the 

 remiges with buffy inner margins ; greater and middle wing-coverts narrowly 

 edged and broadly tipped with dull whitish or deep olive buff, forming two 

 bands across the wing; upper tail-coverts buffy brown or dull olive brown, 

 with more or less conspicuous margins of argus brown; tail dusky, with 

 indistinct paler brown tip and narrow pale outer margins to the outer rec- 

 trices; all the rectrices except the central pair with the inner webs largely 

 cinnamon brown ; throat pallid neutral gray, deepening into light gull gray 

 on the breast, and passing into naphthalene yellow on the abdomen and 

 crissum, the sides and flanks shaded with greenish; under wing-coverts 

 naphthalene yellow; "iris brown; feet and bill black." 



In Juvenal dress the upper parts are dull grayish brown, the rectrices 

 (including the middle pair) are more or less cinnamon on both webs, the 

 secondary edgings are largely rufescent, the wing-coverts are tipped with 

 buffy or rufescent, and the under parts from the breast down are almost 

 white, with only a faint yellow tinge. 



