BIRDS OF NORTH AND MIDDLE AMERICA. b51 
Young male.—Pileum, hindneck, back, scapulars, and rump uni- 
form prouts brown; ‘under parts pale brownish gray, washed with 
prouts brown, the abdomen grayish white or very pale gray; wings 
and tail as in adult female. 
Young female——Not essentially different in coloration from the 
adult female but texture of plumage different (much softer). 
British Honduras (Toledo District), Honduras (Puerto Cabello; 
Medina; Rio Segévia; Chamelicén; Rio Blanco; Céiba), Nicaragua 
(Rio Escondido; San Emilis), Costa Rica (Angostura; Pacuare; San 
Bernardo; Siptrio; Siquirres; Rio Reventazén; Jiménez; Old 
Harbor; Orosi; El Hogir; Cuébre; Guacimo; La Cristina), Panama 
(Santiago de Verigua; Chepo; Lion Hill; Panam&; Sabana de 
Panama), western and central Colombia (Rio Truando; Bucara- 
manga; Bonda, Cacagualito, Minca, and Don Diego, Santa Marta; 
Nechi, Antioquia; Ofiaca; Bogoté),? and western Ecuadér? (Baba- 
hoyo; Esmeraldas; Balzér Mts.; Santa Rita; Chimbo; Vinces; 
Foreste del Rio Peripa). 
Thamnophilus nevius (not Lanius nevius Gmelin) SciaTER, Proc. Zool. Soc., 
Lond., 1855, 148 (Bogot4); 1858, 213 (monogr.); 1860, 278 (Babahoyo, w. 
Ecuad6r), 294 (Esmeraldas, w. Ecuadér; crit.); Cat. Am. Birds, 1862, 173 
(Colombia; Esmeraldas, w. Ecuadér); Cat. Birds Brit. Mus., xv, 1890, 197 
(Puerto Cabello and Medina, Honduras; Angostura, Costa Rica; Verdgua, 
Chepo, and Panam4, Panam4; Minca and Nechi, Colombia; Esmeraldas, 
Balzdr Mts., Santa Rita, and Chimbo, w. Ecuadér).—Cassin, Proc. Ac. Nat. 
Sci., Philad., 1860, 188 (Rio Truando, Colombia).—SciatEer and Satvin, 
Proc. Zool. Soc., Lond., 1864, 355 (Lion Hill, Panamé; crit.); 1879, 524, 
Nechi, Antioquia, Colombia).—Satvin, Proc. Zool. Soc., Lond., 1867, 144 
(Santiago de Verdégua, Panam4).—Lawrence, Ann. Lyc., N. Y., ix, 1868, 
107 (Angostura and Pacuare, Costa Rica).—Franrzius, Journ. fiir Orn., 1869, 
305 (Costa Rica).—Boucarp, Proc. Zool. Soc., Lond., 1878, 60 (San Carlos, 
Costa Rica)—Sanvin and Gopman, Ibis, 1880, 171 (Minca, Santa Marta, 
Colombia, 2,000 ft.) —Brriepscu and TaczanowskI, Proc. Zool. Soc., Lond., 
1883, 564 (Chimbo, w. Ecuadér; crit.).—BrERLEPscH, Journ. fiir Orn., 1884, 307 
(Bucaramanga, Colombia; crit.); Zeitschr. Orn., 1887, 185 (Bogot&).—Ripe- 
way, Proc. U.S. Nat. Mus., x, 1887, 590 (Segévia R., Honduras).—ZrLEpD6N, 
Anal. Mus. Nac., Costa Rica, 1887, 114 (Angostura, Costa Rica) —Banes, 
Proc. Biol. Soc., Wash., xii, 1898, 188 (Santa Marta, Colombia); Proc. New 
Engl. Zool. Club, ii, 1900, 24 (Loma del Leén, Panam4); Bull. Mus. Comp. 
Zool., xxxix, 1903, 150 (Céiba, Honduras). —Atten, Bull. Am. Mus., N. H., 
xiii, 1900, 161 (Bonda, Santa Marta, Colombia). 
(?) Thamnophilus cxrulescens (not of Vieillot) Larresnaye, Rev. Zool., 1853, 
338. 
Thamnophilus amazonicus (not of Sclater) Lawrence, Ann. Lyc. N. Y., vii, 1862, 
325 (Lion Hill, Panam). 
[Thamnophilus] nevius ScLaTER and Satvin, Nom. Av. Neotr., 1873, 70, part. 
Thamnophilus atrinucha Satvin and GopmaN, Biol. Centr.-Am., Aves, ii, sig. 25, 
Feb., 1892, 200 (Panam4; coll. Salvin and Godman).—Ricumonp, Proc. U. 8. 
Nat. Mus., xvi, 1898, 500 (Rio Escondido, Nicaragua; habits)—SaLvaporI 
“Specimens of beth this form and what I am not able to distinguish from true Z. 
punctatus occur in Bogoté collections. 
oI have not seen a specimen from western Ecuador. 
