576 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



or less distinotl}', with brown or dusk}^; breast and abdomen white; 

 under tail-coverts white, more or less tinged or suffused with brownish 

 buff, broadly barred with black or dusky; axillars and under wing- 

 coverts very pale grayish buff, with narrow and indistinct concealed 

 mesial streaks of pale grayish brown; maxilla dark brown or blackish, 

 with paler tomia; mandible pale brownish (in dried skins); iris brown; 

 legs and feet horn color (in dried skins). 



Young. — Essentially like adults, but flanks and under tail-coverts 

 plain buffy brown or cinnamon, and feathers of chest and anterior 

 portion of sides narrowl}' margined with brownish. 



Adult male.—l^Qngih (skins), 105-116 (110); wing, 48-59 (51); tail, 

 33-39 (37.6); exposed culmen, 11-15 (11.1); tarsus, 18-21 (19.7); middle , 

 toe, 12.5-14 (13.3).« 



Adult fejTiale.—ljQngih (skins), 110-113 (112); wing, 52-55 (53..5); 

 tail, 38-39 (38.5); exposed culmen, 14-15 (14.5); tarsus, 19-20.5 (19. T); 

 middle toe, 13.5-14 (13.7).^ 



Isthmus of Panama, from line of Panama Railway (Panama; Lion 

 Hill Station) to Chiriqui (David; Boquete; Divala) and Veragua (Chitra; 

 Calovevora). Southwestern Costa Rica? 



Troglodytes hypaedon (not of Sclater) Lawrence, Ann. Lye. N. Y., vii, 1861, 188, 



320 (Lion Hill, Panama R. R. ). —Sclater and Salvin, Proc. Zool. Soc. 



Lond., 1864, 346 (Lion Hill). 

 Troglodytes inquietus Baird, Review Am. Birds, Sept., 1864, 143 (Panama R. R.; 



coll. U. S. Nat. Mus.; ex "Lawrence, MSS.").— Lawrence, Ann. Lye. N. Y., 



viii, 186.5, 175 (David, Chiriqui); (?) ix, 1868, 93 (Costa Rica).— Bangs, Proc. 



New Engl. Zool. Club, ii, 1900, 26 (Loma del Leon, Panama R. R. ); iii, 



1902, 53 (Boquete, Chiriqui, 4,000 ft. alt); Auk, xviii, 1901, 368 (Divala, 



Chiriqui) . 

 Troglodytes muscidus inquietus Oberholser, Proc. U. S. Nat. Mus., xxvii, no. 



1.354, Jan. 23, 1904, 205 (crit.). 

 Troglodytes tessellatus (not T. tecellata Lafresnaye and D'Orbigny) Salvin, Proc. 



Zool. Soc. Lond., 1867, 135 (David, Chiriqui; crit). 

 Troglodytes furvus (not Motacilla furva Gmelin) Salvin and Godman, Biol. 



Centr.-Am., Aves, i, 1880, 101, part (David, Chiriqui; Chitra and Calovevora, 



Veragua; Obispo and Lion Hill, Panama R. R. ). 

 Troglodytes striatulus (not of Lafresnaye) Sharpe, Cat.- Birds Brit. Mus., vi, 1881, 



254, part (Panama, Lion Hill, Paraiso, and Colon, Panama R. R. ; Chitra 



and Calovevora, Veragua). 



TROGLODYTES MUSCULUS INTERMEDIUS (Cabanis). 

 COSTA RICAN HOUSE WREN. 



Similar to T. m. inquietus, but upper parts decidedly browner and 

 less distinctly barred (the bars on remiges and rectrices narrower), and 

 under parts much deeper in color (pale buffy cinnamon or cinnamon- 

 buff, paler, rarely approaching whitish, on abdomen or throat); decid- 

 edly smaller. 



Adtdts in spring and summer. — Above warm sepia or bistre brown, 



o Ten specimens. ^ Two specimens. 



