530 BULLETIN 50, UNITED STATES NATIONAL MUSEUMi 



Range. — West Indies, eastern South Americu, and Central America 

 to southern Mexico. 



KEY TO THE SPECIES AND SUBSPECIES OF EUETHEIA 



0. Head with more or less of yellow (indistinct in young). 



h. Chin yellow; no yellow on lower throat. {Eueiheiii oliiacea.) 

 c. Adult males with top of head olive-green, except forehead and a line along 

 upper edge of yellow supercilium, and with black 'of under parts not extend- 

 ing farther backward than breast. 

 (I. Smaller (wing averaging less than 50.80; tail averaging less than 38.10); 

 black on under parts restricted to chest. (Greater Antilles,) 

 e. Upper parts grayish olive-green; under parts without yellow suffusion; 

 larger (wing of adult male averaging more than 49.53). (Cuba; Grand 

 Cayman; Little Cayman; Jamaica; Haiti.) 



Enetheia olivacea olivaoea (p. 530) 

 ee. Upper parts ochreous olive-green or bright olive-green, lower parts suf- 

 fused with yellowish. 

 /. Above dull ochreous olive-green; beneath dull light grayish brown 

 laterally. (Cayman Brae, near Cuba.) . .Euetheia olivacea coryi (p. 532) 

 ff. Above bright yellowish olive-green, beneath light grayish olive later- 

 ally, yellowish white or light yellow medially. (Porto Rico.) 



Euetheia olivacea bryanti (p. 533) 

 d<l. Larger (wing more than 50.80; tail more than 38. 10) ; black on chest more 

 extended. (Cozumel and Holbox islands, Yucatan. ) 



Etietheia olivacea intermedia (p. 533) 



rr. Adult males with top of head black or mainly so, and with black of under 



parts extending over breast or beyond. (Southern Mexico to Colombia.) 



Euethela olivacea pnsilla (p. 534) 

 hh. Chin black (male) or chestnut (female); a broad yellow band across throat. 



(Cuba.) ,. Euetheia canora (p. 636) 



aa. Head without any yellow. 



h. Smaller (wing not more than 55.88, usually much less. {Euetheia bicoJor.) 

 I . Darker, the more anterior under parts black in adult males. 

 (/. Adult males with black extending to, sometimes overspreading, abdomen, 

 c Larger (wing averaging 53.34; tail 41.40); back more grayish olive-green. 



(Bahamas. ) Euetheia bicolor bicolor (p. 537) 



('!■. Smaller ( wing averaging less than 52. 07, tail less than 39. 37 ) ; back brighter 

 olive-green. (Cuba; Porto Rico; St. Thomas; St. Johns; Virgin Gorda; 

 Anegada; St. Croix; Lesser Antilles, except Barbados and Grenada; 



Tobago; Venezuela; Colombia?) Euetheia bicolor omissa (p. 538) 



<hl. Adult males with black terminating abruptly on chest. (Jamaica; Haiti; 



Barbados; Grenada; Colombia??) Euetheia bicolor marcni (p. 541) 



re. Paler, the more anterior under parts dusky slate color in adult male. (Is- 

 lands of Curasao, Bonaire, and Aruba. ) Euetheia bicolor sharpei (p. 543) 



hh. Larger (wing 58.42 or more). (Islands of Old Providence and St. Andrews, 

 Caribbean Sea) Euetheia gjrandior (p. 543) 



EUETHEIA OLIVACEA OLIVACEA (Linnaeus). 

 YELLOW-FACED GRASSOTIT. 



Adult male. — Above, including auricular region, plain grayish olive, 

 tinged with olive-green; anterior portion of forehead (extending back- 

 ward in a line along each side of crown), lores, malar region, lower 



