628 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



tail, 49-60.5 (49. Y); exposed culmen, 17-19 (18); tarsus, 24; middle 

 toe, 15-15.5 (15.2).'^ . 



Adult fejnah.^Length (skins), 123-135 (127.7); wing, 62-65 (64); 

 tail, 46.5^9 (47.5); exposed culmen, 17-18 (17.3); tarsus, 23-24(23.3); 

 middle toe, 15-16 (15.3).» 



Veragua (Bugaba; Bibala) and southwestern Costa Rica (Pozo Azul 

 de Pirris; Pozo Azul de Pital; Lagarto; Buenos Aires'; Palmar; 

 Cabagra; Pirris). 



Thryothorus semibadius Salvin, Proc. Zool. Soc. Lond., 1870, 181 (Bugaba, Vera- 

 gua; coll. Salvin and Godman), 



\_Thryophilus] semibadius Sclatbk and Salvin, Nom. Av. Neotr., 1873, 7. 



Thryophilus semibadius Salvin and Godman, Biol. Gentr.-Am. Aves, i, 1880, 88, 

 pi. 6, fig. 3.— Shakpe, Cat. Birds Brit. Mus., vi, 1881, 216 (BibaH, Vera- 

 gua). — Zeledon, Proc. U. 8. Nat. Mus., viii, 1885, 105 (Costa Rica); Anal. 

 Mus. Nac. Costa Kica, i, 1887, 105 (Pozo Azul de Pirris, s. w. Costa Rica).— 

 Cheekie, Proc. TJ. S. Nat. Mus., xiv, 1891, 520 (crit.); Expl. Zool. Val. Eio 

 Naranjo, 1893, 9 (Pozo Azul de Pital, s. w. Costa Rica); Expl. Zool. Merid. 

 Costa Rica, 1893, 11 (Palmar, Lagarto, Buenos Aires, and Cabagra, s. w. 

 Costa Rica, 25 to 600 m.; crit.). 



THRYOPHILUS THORACICUS (Salvin). 

 STRIPED-BREASTED WREN. 



Adults (sexes alike). — Above plain brown (varying from olive-brown 

 to nearly mummy brown), duller and more olivaceous on pileum, 

 more rufescent (mummj^ brown to nearly russet-brown) on rump and 

 upper tail-coverts; back and scapular sometimes showing very faint 

 narrow bars of dusky; wings and tail lighter and more grayish brown, 

 broadly barred with black; a narrow white superciliary stripe, mar- 

 gined above by a more or less distinct narrow line of black; auricular 

 region and suborbital region white, streaked with black, the upper 

 portion of the former uniform black, forming a more or less broad 

 and distinct postocular stripe; sides of neck streaked black and white; 

 throat, chest, and upper breast white, broadly streaked with black, 

 the streaks narrower on throat; abdomen also sometimes similarly 

 but more irregularly streaked; sides and flanks brown (varying from 

 grayish olive to rusty brown or nearly russet), usually immaculate, 

 but sometimes faintly and sparsely barred with dusky; under tail- 

 coverts pale rusty or pale brownish buffy, barred with blackish; max- 

 illa black or blackish brown, with paler tomia; mandible pale grayish 

 (bluish gray in life ?) ; iris brown; legs and feet horn color or dusky 

 (in dried skins). 



Young. — Essentially like adults in coloration of upper parts, but 

 under parts very different, the parts which are conspicuously streaked 

 in adults being deep brownish gray, indistinctly streaked with dull 



"Two specimens, s Three specimens. 



