448 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



c. Inner web of outermost rectrix with a white patch in middle or subterminal 

 portion; forehead yellow (male) or li^ht yellowish-olive, different from 

 color (gray) of crown (female); chest black (male) or grayish (female). 

 (Humid division of Lower Austral life-zone.) 



Helminthophila bachmani (p. 458) 

 cc. Inner weta of outermost rectrix without white patch; forehead not yellow, 

 if yellowish olive the crown also of that color; chest neither black nor 

 grayish. 

 d. Under tail-coverts and abdomen white. (Eastern North America, south 

 in winter to Colombia and Venezuela. ) .Helmintliopliila peregrina (p. 460) 

 dd. Under tail-coverts and abdomen yellow. 

 e. Head not gray; no white orbital ring; adult male with crown-spot orange- 

 rufous or ochraceous. {Helminthophila celata.) 

 f. Upper parts grayish olive-green, under parts pale olive-yellowish. 

 (Central and eastern North America, south in winter to Gulf States 



and eastern Mexico. ) Helminthophila celata celata (p. 462) 



ff. Upper parts bright olive-green, under parts bright olive-yellow or 

 canary yellow. 

 g. Tail shorter (averaging 47 in male, 46.2 in female); bill smaller 

 (exposed culmen averaging 9.4 in male, 10.2 in female). (Pacific 

 coast, from Alaska to Guatemala. ) 



Helminthophila celata lutescens (p. 466) 

 gg. Tail longer (averaging 49,8 in male, 49.5 in female); bill larger 

 (exposed culmen averaging 11.4 in male, 10.4 in female). (Santa 

 Barbara islands, California.) 



Helminthophila celata sordida (p. 467) 

 ee. Head (except chin and throat) gray; a white orbital ring; adult male 

 with crown-spot chestnut. {Hclininlliopliila nthrintpilla.) 

 f. Duller in color. (Eastern North America, .south in winter to Guate- 

 mala. ) Helminthophila rubricapilla rubricapilla (p. 468) 



ff. Brighter in color. (Western Ignited States, south in winter to western 



Mexico. ) Helminthophila rubricapilla gutturalis (p. 470) 



66. Rump and upper tail-coverts different in color from back, 

 c. Rump and upper tail-coverts yellowish olive-green; under tail-coverts yellow 

 or yellowish chestnut. 

 d. Back gray; under tail-coverts yellow. (Western United States.) 



Helminthophila virginiae (p. 471) 

 dd. Back brown; under tail-coverts yellowish I'hestnut. (Southwestern 



Mexico.) Helminthophila crissalis (p. 473) 



cc. Rump and upper tail-coverts chestnut (adults) or pinkish buffy (young); 

 under tail-coverts white. (Southwestern United States and northwestern 

 Mexico. ) Helminthophila luciae (p. 473) 



HELMINTHOPHILA CHRYSOPTERA (Linnaeus). 

 GOIDEN-WINGED WARBLER. 



Wing with a large patch of yellow, covering larger part of middle 

 and greater coverts; back, etc., gray, or merely tinged with olive- 

 green; breast and abdomen white, or merel}^ tinged with yellow; 

 entire auricular region and throat black (male) or gray (female). 



