318 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
longer and broader, with rounded instead of acuminate tip; a broad 
postocular (supra-auricular) streak, long rictal (subauricular) streak, 
of buff (more or less deep); auricular region dull blackish; median 
portion of chin and throat (broadly) ochraceous-buff to almost 
tawny, the lateral portions dusky; rest of under parts (except under 
tail-coverts) plain mouse gray or slate-gray, the sides usually glossed, 
more or less, with metallic bluish green; under tail-coverts grayish 
white, with a central V-shaped mark of grayish (sometimes glossed 
with bluish green or greenish blue); lateral rectrices margined ter- 
minally with white, especially on outer web; bill, etc., as in adult 
male; length (skins), 154-168 (158); wing, 57-62.5 (60); tail, 61-72 
(67.7); culmen, 38-42.5 (40.8).¢ 
Immature male.—Similar in coloration to the adult female but 
having the narrowed tip of middle rectrices much smaller, narrower, 
and (usually) more pointed, as in adult males. 
Young male.—Similar to the immature male (as described above) 
but feathers of rump and lower back, also those of hindneck (some- 
times those of whole upper surface) margined terminally with brown- 
ish buffy, those of sides of throat and chest also with indistinct 
buffy or paler tips or margins. 
Young female.—Similar in coloration to the young male but 
middle pair of rectrices with the narrowed terminal portion much 
longer and broader and more rounded at tip. 
Costa Rica (Angostura; Tucurriqui; Turrialba; Coliblanco; Per- 
alta; Carrillo; Volcén de Irazi; Juan Vifias; La Estrella de Cartago; 
Naranjo de Cartago; Tres Rios; La Hondura; Cariblanco de Sara- 
piqui;.La Vijégua; Peorsnada; Ojuras de Térraba; Dota Mountains; 
Los Reyes, Santa Maria de Dota; El General; Pozo del Rio Grande; 
Barranca) and Panama (Boquete; Volcén de Chiriqui; Laguna 
del Castillo; Calovévora; Cordillera del Chucu; Santa Fé de Verégua); 
northwestern Colombia (Truando Falls) ? 
« Fourteen specimens. 
Ex- 
Locality. Wing. | Tail. | posed 
iculmen. 
MALES, 
Ten adult males from Costa Rica.......---.- 02-2222 cee ee eee eee eee eee ee eee eens 61.4 54.8 42.8 
Ten adult males from Panamé.......-..--22. 220.0 ece eee eee eee eee ee eee teen ees 61.6 | 56.4 42.4 
Three adult males (P. g. emiliz) from central Colombia...................22.2-- 61.5 62.3 42.3 
FEMALES. 
Ten adult females from Costa Rica...........-- 2.2... .0 eee ee eee ee ee eee cee eee eens 60.1 67.1 40.7 
Four adult females from Panamd...... 2.222022 2 eee eee eee eee cee cence eeceeeees 59.7] 68.9 41 
Five adult females (P. g. emilix) from central Colomblia...................0.5-5- 62.3 60.1 41.5 
