182 BULLETIN 50,. UNITED STATES NATIONAL MUSEUM. 
Adult male—Length (skins), 128-149 (137); wing, 59.5-70.5 
(63.8); tail, 58.5-65 (61.6); culmen, 12-15.5 (13.9); tarsus, 18.5-20 
(19.1); middle toe, 15-16 (15.7).¢: 
Adult female——Length (skins), 125-144 (133); wing, 57.5-65.5 
(61.2); tail, 55.5-65 (59.3); culmen, 13-15.5 (14.3); tarsus, 18-19.5 
(18.9); middle toe, 14.5-16 (15.5).® 
Highlands of Costa Rica (San José; Rancho Redondo de San José; 
San Mateo; Rio Sicio; Quebrada Honda; Birris, Azahar, and La 
Estrella, Cartago; La Hondura; Carrillo; Volcén de Irazi; Guayabo; 
Barranca; Coliblanco; Turrialba; Laguaéria; Santa Maria de Dota) 
and western Panama (Cordillera de Tolé; Cordillera del Chucu; 
Volcén de Chiriqui, 7,000-7,700 ft.; Boquete; Chitra; Calobre; 
Calovévora). 
Margarornis brunnescens (not of Sclater, 1856) Satvin, Proc. Zool. Soc. Lond., 
1867, 143 (Cordillera de Tolé, Verégua, Panamé4; crit.); 1870, 192 (Chitra 
and Cordillera del Chucu, Verdgua, Panamé; crit.)—Lawrence, Ann. 
Lye. N. Y., ix, 1868, 106 (San José, Rancho Redondo, Barranca, San Mateo, 
and Birrfs, Costa Rica)—Frantzius, Journ. fiir Orn., 1869, 304 (Costa 
Rica).—Ripeaway, Proc. U. 8. Nat. Mus., vi, 1884, 415 (Rio Sticio, Costa 
Rica).—ZeLepén, Anal. Mus. Nac. Costa Rica, i, 1887, 113 (Twrialba, 
Costa Rica).—SctaTeR, Cat. Birds Brit. Mus., xv, 1890, 123, part (Rancho 
Redondo, Costa Rica; Calovévora, Panam4).—Satvin and Gopman, Biol. 
Centr.-Am., Aves, ii, 1891, 170, pl. 47, fig. 2, part (San José, Quebrada 
Honda, Rancho Redondo, Barranca, San Mateo, Birrfs, and Rio Sticio, Costa 
Rica; Chiriqui, Chitra, Tolé, Cordillera del Chucu, Calovévora, and Calobre, 
Panamé4). 
[Margarornis] brunnescens ScuaTeR and Satvin, Nom. Av. Neotr., 1878, 67, part. 
[Sittasomus] brunnescens Gray, Hand-list, i, 1869, 180, no. 2476. 
Premnoplex brunnescens Banas, Proc. New Engl. Zool. Club, iii, 1902, 46 (Boquete 
and Volcan de Chiriquf, 4,000-7,700 ft., Panam4).—Frrry, Pub. 146, Field 
Mus. N. H., orn. ser., i, no. 6, 1910, 270 (Guayabo and Coliblanco, Costa 
Rica). 
= Fourteen specimens. b Seventeen specimens. 
Locality. Wing.) Tail. | CUP | Tarsus] Middle 
MALES, 
Ten adult males from Costa Rica..........2-.2.-2--0. eee ee eee 63.1 61.5 13.6 19.1 15.7 
Four adult males from western Panamé (Chiriquf)............ 65.6 61.8 15 19.1 15.7 
Three adult males (P. b. coloratus) from northeastern Colom- 
bia. (Santa Marta) o..ccicsecirsrccwicisines sedtisc couaeccvienice neta 61.2 60.7 15.8 19.3 15.8 
FEMALES. 
Ten adult females from Costa Rica..............2....eee eee eee 60.8 59.3 14.2 18.9 15.7 
Seven adult females from western Panamé (Chiriquf).......... 61.6 59.2 14.6 18.9 15.2 
One adult female (P. b. brunnescens) from northwestern Co- 
VOM DIA wa ce cision awokeceeesiionsceendnnas seraricolawecbessnatee 60 53 15 19.5 16 
Three adult females (P. b. coloratus) from northeastern Co- 
Tom Di sis ieiei sree sta civtane ais ste sierais ehh wtvicielaieing s ciees aac oReawleinceaee 59.5 55.5 15.5 19.2 15.7 
