80 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult female.— hength (skins), 96-109 (103); wing, 45-52 (48.2); 

 tail, 40-46.5 (42.1); culmen, 12.5-14 (13.5); tarsus, 15-17 (15.8); 

 middle toe, 8.5-10 (9.1).« 



Nicaragua (Chontales; Los Sabalos; Rio Escondido; San Emilis), 

 Costa Rica (San Carlos; Peje; Pacuare; La Balsa; Talamanca; 

 Sipurio; Rio Sicsola; Jimenez; Angostura; Guapiles; Guacimo; 

 Siquirres; La Cristina; Tuis; El Ilogar; San Jose; La Concepcion; 

 La Florida; Pozo Aziil de Pirris; Pozo del Pital; Pozo del Rio 

 Grande; Paso Real; Lagarto; Boruca; Buenos Aires; Palmar; EI 

 General; La Vijagua), and Panama (Divala and Bugaba, Chiriqui; 

 Panama ; Lion Hill) . 



Formicivora boucardi (not of Sclater, 1858) Sclater and Salvin, Proc. Zool. Soc. 

 Lond., 1864, 356 (Panamd; crit.).— Salvin, Proc. Zool. Soc. Lond., 1870, 

 195 (Bugaba, Panama); Ibis, 1872, 318 (Chontales, Nicaragua). — Boucaed. 

 Proc. Zool. Soc. Lond., 1878, 61 (San Carlos, Costa Rica). — Nutting, Proc, 

 U. S. Nat. Mus., vi, 1884, 405 (Los Sdbalos, Nicaragua; habits). — Sclater, 

 Cat. Birds Brit. Mus., xv, 1890, 254, part (Chontales, Nicaragua; Peje and 

 Angostura, Costa Rica; Pananid,, Bugaba, and Chiriqui, Panama). — Salvin 

 and GoDMAN, Biol. Centr.-Am., Aves, ii, 1892, 216, part (Chontales and 

 Los Sabalos, Nicaragua; Angostura, Pacuare, Peje, San Carlos, Jimenez, 

 La Balsa, and Pozo Azul de Pirris, Costa Rica; Chiriqui, Bugaba, and Lion 

 Hill, Panamd).— Richmond, Proc. U. S. Nat. Mus., xvi, 1893, 501 (Rio 

 Escondido, Nicaragua; habits). — Cherrie, Expl. Zool. Merid. Costa Rica, 

 1893, 43 (Palmar, Lagarto, Boruca, and Buenos Aires, s. w. Costa Rica; 

 habits). — Bangs, Auk, xxiv, 1907, 296 (Boruca, Paso Real, Pozo del Rio 

 Grande, and Lagarto, s. w. Costa Rica). 



[Formicivora] boucardi Sclater and Salvin, Nom. Av. Neotr., 1873, 72, part. — 

 Sharpe, Hand-list, iii, 1901, 26, part. 



Formicivora boucardii Lawrence, Ann. Lye. N. Y., ix, 1868, 108 (Angostura, 

 San Jose, and Pacuare, Costa Rica). — Frantzius, Journ. fur Orn., 1869, 305 

 (Costa Rica). — Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 115 (Pozo 

 Azul, Pacuare, Jimenez, and La Balsa, Costa Rica). 



Formicivora boucardi Cherrie, Anal. Inst. Fis.-Geog. Costa Rica, vi, 1893, 19 

 (Pozo del Pital, Costa Rica). 



Formicivora quixensis (not Thamnophilus quixensis Comalia) Lawrence, Ann. 

 Lye. N. Y., vii, 1862, 325 (Lion Hill Station, Panamd). 



Formicivora virgata Lawrence, Ibis, v, April, 1863, 182 (Lion Hill Station, 

 Panama; coll. G. N. Lawrence); Ann. Lye. N. Y., viii, 1863, 484 (Lion 

 Hill).— Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 217 (Chon- 

 tales, Nicaragua; Lion Hill, Panamd). 



D[rymophila] virgnta Richmond, Auk, xvi, Oct., 1899, 354, in text. 



[Formicivora] virgata Sharpe, Hand-list, iii, 1901, 26 (Panamd to Nicaragua). 



Formicivora boucardi virgata Carriker, Ann. Carnegie Mus., vi, 1910, 610 (Costa 

 Rica; crit.; habits). 



MICRORHOPIAS BOUCARDI CONSOBRINA (Sclater). 



ECITADORIAN ANTWREN. 



Similar to 31. h. virgata, but adult male with rectrices more broadly 

 tipped with white, the adult female with under parts deep chestnut 



o Fourteen specimens. 



