160 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



coverts, plain brownish olive-green, the rump lighter and more 

 decidedly olive-green, the back browner; wings and tail dusky with 

 light olive-green edgings, the outer webs of greater wing-coverts and 

 tertials mostly grayish brown (hair brown); a very distinct super- 

 ciliary stripe of dull white, becoming pale brownish gray at posterior 

 extremity; below this a dusky brown loral or anteorbital triangular 

 spot and a rather broad brown postocular streak; lower portion of 

 postocular region pale brownish gray; suborbital and malar regions, 

 chin, throat, and upper portion of chest grayish white, sometimes 

 faintly tinged with pale yellow; rest of under parts, including axillars 

 and under wing-coverts, pale ^^ellow (pale lemon to between sulphur 

 and straw yellow), the sides and flanks faintly tinged with olivaceous; 

 bill brown, the mandible paler; iris brown; legs and feet grayish 

 dusky (grayish blue or bluish gray in life?). 



Ymtng. — Pileum, hindneck, back, scapulars, rump, upper tail- 

 coverts, and smaller wing-coverts, plain pale wood brown or fawn- 

 color; remiges and rectrices as in adults; greater wing-coverts as in 

 adults, but more olive-greenish and indistinctly tipped with pale yel- 

 lowish olive; superciliary stripe and under parts white, passing into 

 very pale olive yellow on sides, flanks, and under tail-coverts. 



Adult male.—laength (skins), 121-124 (122.5); wing, 62-68 (65); 

 tail, 46-51 (48.*5); exposed culmen, 10.5-11 (10.7); tarsus, 17-17.5 

 (17.2); middle toe, 9.5-10 (9.7)." 



Adult female. — Length (skin), 124; wing, 67; tail, 49; exposed 

 culmen, 10.5; tarsus, 16.5; middle toe, 10.* 



Highlands of Costa Rica (San Jose, Dota, Barranca, Rancho 

 Redondo, etc.) 



Vireo josephx (not of Sclater, 1859) Salvin and Godman, Biol. Centr.-Am., 

 Aves, i, 1881, 194, part (Barranca, Eancho Redondo, and DotaMts., Costa 

 Rica).— Gadow, Cat. Birds Brit. Mus., viii, 1883, 297, part (Costa Rica).— 

 Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 108 (Raucho Redondo de San 

 Jos^, Costa Rica). 



Vireosylvia josephx Baimd, Review Am. Birds, May, 1866, 344, part (Barranca 

 and Dota, Uosta Rica). —Lawrence, Ann. Lye. N. Y., ix, 1868, 96 (Barranca, 

 Rancho Redondo, and Dota Mts., Costa Rica).— FSantzius, Journ. fur 

 Orn., 1869, 295 (Costa Rica).— Boucaed, Proc. Zool. Soc. Lond., 1878, 53 

 (Naranjo, Costa Rica). 



IVireosylvia] josephas Sclatek and- Salvin, Nom. Av. Neotr., 1873, 12, part 

 (Costa Rica). 



V[ireosylvia gilva] yslt. josephic Ridgway, Am. ,Tourn. Sci., iv, Dec, 1872, 456, 

 in text, part (Costa Rica). 



Tlireosylvi.a] griZna var. josep/ja; Baikd, Brewer, and Ridgway, Hist. N. Am. Birds, 

 i, 1874, 360, footnote, part (Costa Rica). 



a Two specimens. b One specimen. 



