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Rh GRALLARICULA COSTARICENSIS Lawrence.

Adults (sexes alike.) — Pileum and hindneck plain grayish olive, more brownish on forehead; rest of upper parts plain brownish olive, the general color of wings, together with tail, decidedly browner (sometimes nearly prouts brown); outer web of exterior feather of alula buff or ochraceous-buff; wing-coverts sometimes with an indistinct terminal spot or terminal margin of light tawny or rufescent brown; an indistinct orbital ring of tawny; lores buffy or ochraceous, suffused with black or dusky in middle portion; suborbital and auricular regions olive tinged with tawny, the latter with very indistinct narrow shaft-streaks of paler; malar region, chin, throat, chest, and sides ochraceous or tawny-ochraceous, usually somewhat paler on chin and throat, the chest usually more or less distinctly marked (irregularly) with black or dusky; abdomen and median lower part of breast white or buffy white, the latter, as well as sides of abdomen, usually flecked with black or dusky; under tail-coverts pale buff or buffy whitish; under wing-coverts clear ochraceous, those over carpo-metacarpal joint, more or less extensively, dusky; inner webs of remiges rather indistinctly edged with brownish buff or pale wood brown; maxilla horn brown (more or less dark), mandible pale dull yellowish (wax yellow in life); iris brown or red; legs and feet pale yellowish brown (yellowish olive in life).

Adult male. — Length (skin), 97; wing, 66; tail, 26; culmen, 13.5; tarsus, 21.5; middle toe, 13.5.

Adult female. — Length (skins), 86.5-100.5 (92); wing, 61.5-64 (62.8); tail, 18-24.5 (21.7); culmen, 13.5-14.5 (14); tarsus, 20.5-21 (20.7); middle toe, 13.5-14 (13.7).

Costa Rica (Navarro; Barranca; Buena Vista; Rio Súcio; Cariblanco de Sarapiquí; base of Volcán de Turrialba, 2,000 ft.) and western Panamá (Chitra; Calovévora; Calobre; Cordillera de Tolé; Caribbean slope, Chiriquí).


 * Grallaricula costaricensis, Ann. Lyc. Nat. Hist. N. Y., viii, 1867, 346 (Barranca, Costa Rica; coll. U. S. Nat. Mus.); ix, 1868, 110 (Barranca). — , Proc. Zool. Soc. Lend., 1867, 146 (Cordillera de Tolé, Panamá);

81255° — Bull. 50—11——10