BIRDS OF NORTH AND MIDDLE AMERICA. 125 
dios, Antioqufa, Colombia).—Satvin, Proc. Zool. Soc. Lond., 1866, 75, 
part \Panam4; monogr.).—ScuaTeR, Cat. Birds Brit. Mus., xv, 1890, 304, 
part (Panamé and Chepo, Panam4).—Satvin and Gopmaw, Biol. Centr.-Am., 
Aves, ii, 1892, 234, part (Lion Hill, Obispo, and Paraiso stations, and Chepo, 
Panam4; Colombia?).—Ripaway, Proc. U. 8. Nat. Mus., xvi, 1893, 679, 
part (monogr.).—Satvapori and Frsra, Boll. Mus. Zool., etc., Torino, xiv, 
1899, no. 339, 7 (Laguna del Pita, Panamé4).—Banas, Proc. New Engl. Zool. 
Club, ii, 1900, 24 (Loma del Leon, Panama). 
[Formicarius] hofmanni Scuater and Savin, Nom. Av. Neotr., 1873, 75, part 
(Panam4).—SuHarre, Hand-list, iii, 1901, 39, part (Panamé; Colombia?). 
Formicarius moniliger panamensis Ripaway, Proc. Biol., Soc. Wash., xxi, Oct. 
20, 1908, 195 (Lion Hill station, Panamé; coll. U. S. Nat. Mus.). 
FORMICARIUS RUFIPECTUS Salvin. 
RUFOUS-BREASTED ANTTHRUSH. 
Adult male.t—Pileum and hindneck dark chestnut, the feathers 
dull black beneath the surface (partly exposed on crown); rest of 
upper parts dark olive or olive-sepia, passing into deep reddish 
chestnut or bay on upper tail-coverts; tail dull black, the rectrices 
edged (especially toward base) with olive-brown; remiges, primary 
coverts, and alula dark sooty brown; loral, orbital, auricular, sub- 
orbital and malar regions, chin, and throat uniform black; whole 
chest uniform chestnut, passing into tawny-chestnut on breast, this 
into tawny on abdomen, the chestnut of chest extended laterally as 
a narrow band behind auricular region to merge into the dark chest- 
nut of hindneck; sides and flanks olive, indistinctly streaked on 
inner portion with dull tawny or tawny-chestnut; under tail-coverts 
bright chestnut; bill black; iris brown; legs and feet dark horn color; 
length (skin), 182; wing, 90; tail, 56; culmen, 21; tarsus, 38.5; middle 
toe, 23.° mee 
Adult female.-—Similar to the adult male, as described above, but 
color of back, etc., less olivaceous (more slaty) sides and flanks dull 
slate color or dark mouse gray instead of olive, and chestnut of chest 
lighter (tawny-chestnut), passing through tawny or tawny-olivace- 
ous on lower breast into deep buff or clay color on abdomen; under 
tail-coverts also lighter chestnut; length (skin), 163.5; wing, 88.5; 
tail, 56.5; culmen, 23.5; tarsus, 38; middle toe, 23. 
Western Panama (Santiago de Verégua); Costa Rica (Juan Vifias); 
northwestern Colombia (San Antonio) ? 
4 Description from no. 28,203, Carnegie Museum; Juan Viifias, Costa Rica (Atlantic 
slope), May 7, 1907; M. A. Carriker, jr. (Type of Formicarius castaneiceps Carriker.) 
b One specimen (type of F. castaneiceps Carriker). : 
¢ Described from no. 20,656, coll. E. A. and O. Bangs; San Antonio, Rio Cali, north- 
western Colombia; Nov. 8, 1907; Mervyn G. Palmer. (Possibly representing a dis- 
tinct subspecies). 
