BIRDS OF NORTH AND MIDDLE AMERICA. 69 
life); length (skins), 89-96 (90); wing, 47-54 (50.6); tail, 29-34 (31.5); 
culmen, 12.5-14 (13.3); tarsus, 15-16 (15.3); middle toe, 8.5-9 (8.9).% 
Southern Honduras (Rio Segévia), Costa Rica (Angostura; Naranjo 
de Cartago; Rio Reventazén; Jiménez; Pacuare; Orosi; Siptrio; 
La Balsa; San José; Rio Sicsola; El Hogar; Guapiles; La Junta; 
Carrillo; Las Trojas; Rio Frio; La Vijégua), and Panamé (Pan- 
ama; Lion Hill; Chepo), through Colombia (Rio Truando; Turbo; 
Nechi, Antioquia; Bogotaé) and Ecuadér (Sarayacu; Foreste del Rio 
Peripa; Santo Domingo) to Peru (Rio Huallaga; Lower Ucayali; 
Xeberos; Chyavetas; Chamicuros; Pebas; Moyabamba) and Venezuela 
(Maipures; Perico; Bichaco; Munduapo). 
Formicivora axillaris not Myrmothera axillaris Vieillot) ScuarzR, Proc. Zool. 
Soc. Lond., 1855, 147 (Bogota). 
Myrmotherula avillaris CaRRIKER, Ann. Carnegie Mus., v, 1908, 8 (Rio Sicsola, 
Talamanca, Costa Rica; crit.). 
Formicivora melena ScuatErR, Proc. Zool. Soc. Lond., 1857, 130 (Bogotd, Colom- 
bia; coll. P. L. Sclater).—Lawrencr, Ann. Lyc. N. Y., vili, 1863, 484 
(Lion Hill, Panama). 
Myrmotherula melena ScuateR, Proc. Zool. Soc. Lond., 1858, 237 (monogr.; 
Bogot4); Cat. Am. B. 1862, 180 (do.).—Scuater and Sanvin, Proc. Zool. 
Soc. Lond., 1864, 356 (Lion Hill; crit.); 1866, 186 (Rio Ucayali, e. Peru); 
1867, 750 (Rio Huallaga, e. Peru); 1873, 274 (lower Ucayali, Xeberos, 
Chyavetas, Chamicuros, e. Peru); 1879, 525 (Nechi, Antioqufa, Colombia).— 
Lawrence, Ann. Lyc. N. Y., ix, 1868, 107 (Angostura and Pacuare, Costa 
Rica)—Franrzius, Journ. fir Orn., 1869, 305 (Costa Rica) —PrLzELn, 
Orn. Bras., ii, Abth., 1869, 82.—Satvin, Ibis, 1874, 311 (Rio Truando, Co- 
lombia; Panamd; Costa Rica; synonymy).—Bovucarp, Proc. Zool. Soc. 
Lond., 1878, 61 (Costa Rica).—TaczanowskI, Orn. du Pérou, ii, 1884, 48.— 
ZELEDON, Anal. Mus. Nac. Costa Rica, 1887, 115 (Pacuare, Naranjo de 
Cartago, and Las Trojas, Costa Rica).—Scuarer, Cat. Birds Brit. Mus., xv, 
1890, 239 (Angostura, Costa Rica; Panam& and Chepo, Isthmus Panama; 
Antioquia and Bogoté, Colombia; Sarayacu, e. Ecuadér; Xeberos, Yquitos, 
Pebas, and Chamicuros, e. Peru).—Satvin and Gopmay, Biol. Centr.-Am., 
Aves, li, 1892, 211.—Ricumonp, Proc. U. 8. Nat. Mus., xvi, 1893, 501 (Rio 
4 Fifteen specimens. 
: é Cul- Tar- | Middle 
Locality. Wing. | Tail. | men. | sus. toe. 
MALES. 
Ten adult males from Costa Rica............-.2-.2-2--222-2200- 51.6 31.5 13.4 15.3 9 
One adult male from Panama.............222-202--22--2022 eee 52.5 31 14 15.5 8.5 
Two adult males from n. w. Colombia (Rio Truando)..-...-.-- 53 33.5 13.5 16 9 
Two adult males from central Colombia (Bogoté).........--..- 56 36 14.2 16 9.2 
One adult male from Peru...........2....22- 022 e eee eee eee eee 53 33.5 14 16.5 9.5 
FEMALES. 
One adult female from southern Honduras (Rio Segovia)... ..- 49.5 32 13.3 15.3 8.5 
Ten adult females from Costa Rica................2.2+-22--++-+ 50 31 13.2 15.2 8.9 
Two adult females from Panamaé.............---22---2220200e= 50.5 32.2 13 16 9 
Two adult females from n. w. Colombia (Turbo)...........---- 53.7 32,7 13.5 15 8.7 
