648 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
(D. 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, purplish 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; chin and upper throat, together with malar, sub- 
orbital, and auricular regions, dusky metallic 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 remainder 
mostly light cinnamon-rufous or vinaceous-cinnamon, the third rec- 
trix similar but (usually at least) without any white at tip; a post- 
«Ten specimens. 
