694 Annals of the Carnegie Museum. 



range of the subspecies as given by Mr. Nelson, true lawrencei being con- 

 fined to Mexico and northern Guatemala. 



This is one of the commonest flycatchers in Costa Rica, covering the 

 whole of the Caribbean lowlands and slope, the lower portions of the cen- 

 tral plateau region, and the whole of the Pacific slope with the exception 

 of the extreme southwestern portion, probably from the Dota Mountains 

 southward. It is not found in the heavy forest, but in open woodland, 

 isolated clumps of trees, gardens, and orchards. 



447. Myiarchus ferox actiosus Ridgway. 



Myiarchus panamensis (not of Lawrence, 1862) Lawrence, Ann. Lye. N. Y., 

 IX, 1868, 115 (Costa Rica). — Frantzius, Jour, fiir Orn., 1869, 308 (Costa 

 Rica). — Boucard, P. Z. S., 1878, 64 (Puntarenas). 



Myiarchus ferox Sclater, Cat. Birds Brit. Mus., XIV, 1888, 253, part (in synon- 

 ymy). — Salvin and Godman, Biol. Centr.-Am., Aves, II, 1889, 92, part 

 (in synonymy). 



Myiarchus ferox actiosus Ridgway, Proc. Biol. Soc. Wash., XIX, 1906, 116 

 (Pigres, Gulf of Nicoya, Costa Rica; coll. of U. S. Nat. Mus.); Birds N. and 

 Mid. Amer., IV, 1907, 642 (Pacific coast of Costa Rica: Pigres, San Lucas, 

 and Puntarenas). 



This form must be very scarce and local in Costa Rica, Neither Under- 

 wood nor I succeeded in securing specimens, so that practically all the 

 skins representing it in this country are in the U. S. National Museum. 



448. Myiarchus brachyurus Ridgway. 



Myiarchus nutlingi (not of Ridgway) Nutting, Proc. U. S. Nat. Mus., VI, 1883, 



374 (San Juan del Sur, Nicaragua). 

 M[yiarchus\ brachyurus Ridgway, Man. N. Am. Birds, 1887, 334 (Ometepe, 



Nicaragua; coll. U. S. Nat. Mus.). — Allen, Bull. Am. Mus. Nat. Hist., 



IV, 1892, 346, in text (crit.). 

 Myiarchus brachyurus Salvin and Godman, Biol. Centr.-Am., Aves, II, 1889, 



92, footnote. — Nelson, Proc. Biol. Soc. Wash., XVII, 1904, 40 (monogr.). 



— Bangs, Proc. Biol. Soc. Wash., XXII, 1909, 34 (Costa Rica; critical). 

 Myiarchus nuttingi brachyurus Ridgway, Birds N. and Mid. Amer., IV, 1907, 



630 (southern Mexico to Costa Rica: Miravalles, San Lucas, Mojica Pacifica, 



Bahia de Salinas). 



Bangs Collection: Miravalles, Coralillo, Bolson, Cerro de Santa Maria, 



Tenorio (Underwood). 



Mr. Ridgway, in his "Birds of North and Middle America," (IV, p. 630), 

 makes this form a subspecies of M. nuttingi, at the same time giving the 

 ranges of the two birds as practically the same and occurring together. 

 The form is either a good species or a synonym of M. nuttingi, for birds 



