BIRDS OF NORTH AND MIDDLE AMERICA. 531 



Adult female. — Similar to the adult male and not always distinguish- 

 able, but averaging a little lighter in color; length (skins), Vl1-1\^) 

 (132); wing, 60-63 (61.5); tail, 47-51 (48.2); exposed culmen, 18-19 

 (18.8); tarsus, 22.5-23 (22.9); middle toe, 14-15 (14.8).« 



Costa Rica (Tucurrique; Pacuare; Jimenez) and Nicaragua (Gre}^- 

 town; E,io Escondido). 



Thryothoms airogularis Salvin, Proc. Zool. Soc. Lond., 1864, 580 (Tucurricfue, 



Costa Rica; coll. Salvin and Godman). — Richmond, Proc. U. S. Nat. Mus., 



xvi, 1893, 483 (Rio Escondido, Nicaragua; habits). — Zeledon, Proc. U. 8. 



Nat. Mus., viii, 1885, 105 (Costa Rica); Anal. Mus. Nac. Costa Rica, i, 1887, 



105 (Pacuare; Jimenez). 

 IThryothorns] atrogularis Sclater and Salvin, Nom. Av. Neotr., 1873, 7. 

 Thryothorus atrigularis Salvin and Godman, Biol. Centr.-Am., Aves, i, 1880, 91, 



pl.6, flg. 4.— Shaepe, Cat. Birds Brit. Mus., vi, 1881, 231 (Tucurrique). 

 Pheugopedius atrogularis f La whence, Ann. Lye. N. Y., A'iii, 1865, 180 ((irey- 



town, Nicaragua). 

 Pheugopedius atrogularis Lawkence, Ann. Lye. N. Y., ix, 1868, 92 (Tucurrique, 



Costa Rica). — Zeleden, Cat. Aves de Costa Rica, 1882, 3. 

 [^Troglodytes'] atrogularis Gkay, Hand-list, i, 1869, 190, no. 2590. 



PHEUGOPEDIUS FASCIAT0-VENT:^IS ALBIGULARIS (Sclater). 

 PANAMA BLACK-BELLIED WREN. 



Similar to P. f. fasciato-ventrls^ but auricular region wholly dusky, 

 under parts less extensively and less broadl}^ barred with white, breast 

 uniform black or dusky gray, and brown of upper parts darker. 



Adult male. — Above plain chestnut-brown, or between burnt umber 

 and mummy brown, the pileum duller, especial!}' on forehead, where 

 sometimes inclining to gi-ayish brown or dusky; upper tail-coverts 

 usually narrowly barred (more or less distinctly) with black; tail black, 

 narrowly barred on outer webs with light brown, the inner webs with 

 indications of similar bars along edge; wings narrowlj^and indistinctly 

 barred with dusky; loral, suborbital, and auricular regions entirely 

 dusky, the last sometimes finelj'^ streaked with paler; a more or less 

 distinct narrow superciliary line of white streaks; malar region, chin, 

 throat, and chest uniform white; breast black or dusky gray, some -of 

 the feathei's of lower portion usuallj' with narrow and indistinct dull 

 whitish bars; rest of under parts (except thighs) black or dusky gray 

 narrowlj' barred with whitish, the bars becoming brownish on flanks; 

 ,thighs brown, narrowly barred with dusky ; maxilla black with whitish 

 tomia; mandible pale grayish (in dried skins); iris brown; legs and 

 feet black; length (skins)", 143-158 (147.6); wing, 66-i)9 (67.3); tail, 

 52-54.5 (53.6); exposed culmen, 19-21.5 (19.9); tarsus, 22-25.5 (24.6); 

 middle toe, 15.6-18 (16.3). ■-■ 



Adult feiru til'. — Similar to the adult male, but black of under parts 

 averaging much duller (the color usuall}' dusky grayish or brownish 



a Five specimens. ^See footnote on page 529. <^ Seven specimens. 



