648 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



(Z). enicura), the lateral rectrices cinnamon-rufous basally and 

 tipped with white. 



Range. — Southeastern Mexico to Guatemala. (Two species.) 



KEY TO THE SPECIES OF DORICHA. 



a. Throat bright metallic purple or violet; tail deeply forked, the lateral rectrices 

 without whitish tip. {Adult males.) 

 b. Chin black, throat violet; outermost rectrices wholly black; wing not more than 



34, tail more than 50. (Guatemala.) Doricha enicura, adult male (p. 648). - 



bb. Chin and throat reddish purple (solferino); outermost rectrices with inner web 

 broadly edged with light cinnamon-rufous; wing more than 34, tail less than 



40. (Southeastern Mexico.) Doricha eliza, adult male (p. 650). 



aa. Throat whitish or buffy; tail slightly forked, the lateral rectrices broadly tipped 

 with whitish. {Adult females .) 

 b. Under parts cinnamon-buff or vinaceous-cinnamon; lateral rectrices cinnamon- 

 rufous basally; middle rectrices less than 19, exposed culmen less than 22. 



Doricha enicura, adult female (p. 648). 

 bb. Under parts dull buffy whitish; lateral rectrices grayish cinnamon basally; 

 middle rectrices more than 19, exposed culmen 22 or more. 



Doricha eliza, adult female (p. 650). 



DORICHA ENICURA (Vieillot). 



SLENDER SHEAR-TAIL. 



Adult male. — ^Above metallic bronze-green, the back sometimes 

 decidedly bronze or golden; four middle rectrices bronze-green, the 

 next pair bronze-green terminally, purpUsh black or dusky basally; 

 other rectrices dull black, with a faint gloss of bronzy purplish, the 

 inner web of pair next to the outermost edged with pale rusty or cin- 

 namon; remiges purplish dusky, the inner secondaries glossed with 

 bronze-greenish; chui and upper throat, together with malar, sub- 

 orbital, and auricular regions, dusky metalhc bronze-greenish; 

 throat (except upper part) bright metallic violet or phlox purple; 

 chest varying from dull brownish white to pale vinaceous-cinnamon; 

 sides and flanks (broadly) metallic bronze-green; median line of 

 breast and abdomen pale dull brownish gray; under tail-coverts 

 metallic bronze or bronze-green centrally, margined with pale 

 brownish gray or dull whitish; femoral tufts white; bill dull black; 

 iris dark brown; feet dusky; length (skins), 103-121 (110); wing, 

 31-34 (32.7); tail, 55-61.5 (58.4), middle rectrices 9.5-14 (11.5); 

 exposed culmen, 18-20.5 (19).'^ 



Adult female. — Above similar to the adult male, but two outer 



rectrices (on each side) broadly and abruptly tipped with white, this 



preceded by a broad subterminal area of blackish, the remamder 



mostly light cinnamon-rufous or vinaceous-cinnamon, the third rec- 



trix similar but (usually at least) without any white at tip; a post- 



• 



oTen specmiens. 



