518 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



safTron yellow, ])assin<>: into paler yellow (straw to maize) on abdomen, 

 anal region, and under tail-ccn^erts; chin dull buffy whitish, passing 

 into saffron yellowish on lower throat; axillars and under wing- 

 coverts light olive medially, liroadly edged with dull saffron yellowish 

 or tawnv-ochraceous; maxilla brownish black, mandible yellowish 

 sometimes with a little dusky at tip; iris (hirk l)rown; legs and feet 

 brownish black. 



Adult male. — Length (skin), 154; wing, 90; tail, 71.5; exposed 

 culmen, 17.5; tarsus, 16.5; middle toe, 10." 



Adult /maZf.— Length (skin), 152-155 (153); wing, 84.5-90 

 (86.3); tail, 68-72.5 (70); exposed culmen, 17-17.5 (17.1); tarsus, 

 15.5-17 (16.3); middle toe, 9.5-10.5 (10. l).'^ 



High mountains of Costa Rica (^'olcan de Irazii; Yolcan de 

 Turrialba). 



Contopus ochraceus Sclater and Salvin, Proc. Zool. Soc. Lond., xxxvii, 1869, 419 

 (Costa Rica; coll. Salvin and Godman).— Salvin, Ibis, 1870, 115; 1874, 313.— 

 RiDGWAY, Ibis, 1883, 401 (crit.).— Sclater, Cat. Birds Brit. Mus., xiv, 1888, 

 237.— Salvin and Godman, Biol. Centr.-Afn., Aves, ii, 1889, 84, pi. 38, fig. 2. 



[Contopus] ochraceus Sclater and Salvin, Noni. Av. Neotr., 1873, 52. 



Horizopus ochraceus Oberholser, Auk, xvi, Oct., 1899, 332. 



[Horizopus] ochraceus Sharpe, Hand4ist, iii, 1901, 141. 



MYIOCHANES VIRENS (Linnaeus). 

 WOOD PEWEE. 



Adults {sexes alike). — Above plain olive, slightly paler on rump and 

 upper tail-coverts, slightly darker on pileum, where the feathers are 

 more or less distinctly darker centrally; tail deep grayish brown the 

 outer webs of rectrices passing into lighter grayish brown or olive 

 along edges; wings dusky, the middle and greater coverts tipped with 

 pale grayish and with still paler gray terminal margins, the secondaries 

 edged (except basally) with whitish, these edgings broader on inner 

 secondaries (" tertials " ) ; sides of head and neck similar in color to 

 back, etc., but rather lighter, especially on lower portion; a more or 

 less distinct narrow whitish orbital ring (interrupted on upper eyelid) ; 

 lores intermixed, more or less, with whitish; chin and throat dull white 

 or yellowish white; chest (at least laterall}") and sides of breast pale 

 grayish olive, becoming still paler on sides and flanks; rest of under 

 parts yellowish white or very pale primrose yellow,'^ the longer under 

 tail-coverts with a central cuneate or sagittate mark (mostly con- 

 cealed) of pale olive; axillars and under wing-coverts pale grayish olive 

 margined into yellowish white or ver}^ pale yellowish; maxilla blackish 



a One specimen. 

 6 Four specimens. 



cThe yellow tinge usually more pronounced in autumnaV specimens, especially 

 young. 



