74 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult female. — Similar to the adult male but whole throat plain 

 bufFy, and general color of wing-coverts dusky olive instead of 

 blackish; length (skins), 86-107 (99); wing, 48-52.5 (50.5); tail, 

 31.5-36 (34.2); culmen, 14-15.5 (14.6); tarsus, 16-17 (16.6); middle 

 toe, 10.5-11.5 (11).« 



Southern Honduras (Rio Segovia) through Nicaragua (Rio Escon- 

 dido; San Emilis, Lake Nicaragua), Costa Rica (Angostura; San 

 Jose; San Carlos; Jimenez; Rio Reventazon; Rio Matina; Pacuare; 

 Siquirres; Sipurio; Cuabre; Guapiles; Carrillo; El Hogar; Guacimo; 

 La Vijagua; La Cristina), Panama (Lion Hill) and Colombia (Reme- 

 dios, Antioqula; Naranjo, Bucaramanga; Rio Truando) to western 

 Ecuador (Esmeraldas; Foreste del Rio Peripa).'' 



Myrmotherula gularis (not Thamnophilus gularis Spix) Sclater, Proc. Zool. Soc. 

 Lond., 1860, 294, part (Panamd). 



Myrmotherula ornata (not Formicivora ornala Sclater) Cassin, Proc. Ac. Nat. Sci. 

 Philad., 1860, 191, part (Rio Truando, Colombia). 



Myrmotherula, sp. no. 216, Lawrence, Ann. Lye. N. Y.,vii, 1862, 325 (Lion Hill, 

 Panama). 



Myrmetherulafulviventris Lawrence, Ann. Lye. Nat. Hist. N. Y., vii, Feb., 1862, 

 468 (Lion Hill, Panamd; coll. G. N. Lawrence). 



Myrmotherula fulviventris Sclater and Salvin, Proc. Zool. Soc. Lond., 1864, 356 

 (Lion Hill; crit.); 1879, 525 (Remedios, Antioquia, Colombia). — Lawrence, 

 Ann. Lye. N. Y., ix, 1868, 108 (Angostura, Costa Rica). — Frantzius, Journ. 

 fiir Orn., 1869, 305 (Costa Rica).— Wyatt, Ibis, 1871, 331 (Naranjo, Colom- 

 bia). — Salvin, Ibis, 1874, 311 (Rio Truando, Colombia; crit.). — Berlepsch, 

 Journ. fiir Orn. 1884, 318 (Naranjo, Bucaramanga, Columbia). — Ridgway, 

 Proc. U. S. Nat. Mus., x, 1887, 590 (Rio Segovia, Honduras).— Zeled6n 

 Anal. Mus. Nac. Costa Rica, 1887, 115 (Pacuare and Jimenez, Costa Rica). — 

 Sclater, Cat. Birds Brit. Mus., xv, 1890, 234 (Angostura, Costa Rica; Verd- 

 gua; Panamd,; Bogotd; Remedios, Antioqula; Esmeraldas, Ecuad6r). — 

 Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 210. — Richmond, 

 Proc. U. S. Nat. Mus., xvi, 1893, 501 (Rio Escondido, Nicaragua).— (?) Sal- 

 vadori and Festa, Boll. Mus. Zool., etc., Torino, xv, 1899, no. 362, 29 

 (Foreste del Rio Peripa, w. Ecuad6r; crit.). — Carriker, Ann. Carnegie Mus., 

 vi, 1910, 607 (Caribbean lowlands up to 1,500 ft., Costa Rica; habits; descr. 

 nest and eggs). 



[Myrmotherula] fulviventris Sclater and Salvin, Nom. Av. Neotr., 1873, 71. — 

 Sharps, Hand-list, iii, 1901, 21, part. 



« Thirteen specimens. 



^ I have not seen a specimen from Ecuad6r. 



