BIEDS OF NORTH AND MIDDLE AMERICA. 125 



dios, Antioquia, Colom))ia). — Salvin, Proc. Zool. Soc. Lond., 1860, 75, 

 part vPanama; monogr.). — Sclater, Cat. Birds Brit. Mus., xv, 1890, 304, 

 part (Panama and Chepo, Panama). — Salvin and Godman, Biol. Centr.-Am., 

 Aves, ii, 1892, 234, part (Lion Hill, Obispo, and Paraiso stations, and Chepo, 

 Panama; Colombia?).— Ridg way, Proc. U. S. Nat. Mus., xvi, 1893, G79, 

 part (monogi-.). — Salvadori and Festa, Boll. Mus. Zool., etc., Torino, xiv, 

 1899, no. 339, 7 (Laguna del Pita, Panamd,).— Bangs, Proc. New Engl. Zool. 

 Club, ii, 1900, 24 (Loma del Leon, Panama). 



[Fonmcarius] hoffmanni Sclater and Salvin, Nom. Av. Neotr., 1873, 75, part 

 (Panamd). — Sharpe, Hand-list, iii, 1901, 39, part (Panamd; Colombia?). 



Formicarius moniligcr panamensis Ridg way, Proc. Biol., Soc. Wash., xxi, Oct. 

 20, 1908, 195 (Lion Hill station, Panama; coll. U. S. Nat. Mus.). 



FORMICARIUS RUFIPECTUS Salvin. 



RTTFOUS-BREASTED ANTTHRUSH. 



Adult male." — 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.^ 



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-oKvace- 

 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 Veragua); Costa Rica (Juan Vinas); 

 northwestern Colombia (San Antonio) ? 



a Description from no. 28,203, Carnegie Museum; Juan Vinas, Costa Rica (Atlantic 

 slope). May 7, 1907; M. A. Carriker, jr. (Type of Formicarius castaneiceps Carriker.) 



& One specimen (type of F. castaneiceps Carriker). 



c Described from no. 20,G50, coll. E. A. and O. Bangs; San Antonio, Rio Call, north- 

 western Colombia; Nov. 8, 1907; Mervyn G. Palmer. (Possibly rejsresenting a dis- 

 tinct subspecies). 



