318 REPORT OF NATIONAL MUSEUM, 1890. 



1 1 . Wiug more than 2.40; adult males without a brilliant 



gorget, or else the latter neither red, purple, nor violet. 

 m 1 . Tail partly rich chestnut, glossed with bright purple; 



bill rather distinctly curved Lampornls* 



ra 2 . Tail without chestnut or bright purple; bill straight. 

 » l . Tail wholly (male) or partly (female) greenish bronze- 



Eugenes. (P. 319.) 

 n 2 . Tail wholly or chiefly black Cwligena. (P. 323.) 



1 2 . Wing less than 2.25 ; adult males with a brilliant gorget of 



metallic red, purple, or violet. 

 to 1 . Middle tail feathers narrower near end than at base. 

 n l . Exposed culmen 0.60 or more ; outer tail feathers tip- 

 ped with white only in females. 



1 . Outer tail feather not decidedly shorter than middle 



pair, and not; conspicuously narrower than the 

 next; adnlt males with six innermost quills ab- 

 ruptly much smaller and narrower thau the rest. 



Trochilus. (P. 325.) 



2 . Outer tail feather decidedly shorter than the middle 



pair and abruptly narrower than the next (except 



in C. helence) ; adult males with innermost quills 



normal. 



p l . Tail without any rufous; adult males with tail 



forked (but feathers not pointed) and top of head 



brilliantly metallic, like gorget. Calypte, (P. 333.) 



p 2 . Tail partly rufous, more or less graduated, in both 



sexes; adult males with top of head greenish or 



bronzy, totally unlike gorget (except in S. flo- 



resii) Selasphorus. (P. 339. ) 



ft 2 . Exposed culmen not more than 0.50 ; outer tail feathers 



tipped with white in both sexes.. ..Atthis. (P. 379.) 



Hi 2 . Middle tail feathers broader near end than toward base. 



Stellula. (P. 354.) 



k 2 . Feathering of forehead scarcely extending beyond posterior 



portion of nostrils, the scale over latter therefore naked for 



the greater part at least ; bill very broad at base. 



I 1 . Tail blue-black in male, deeply emargiuated, the middle 



feathers tipped with dull grayish ; in female shallowly 



einargiuate, green basally, blue-black terminally, the 



outer feathers tipped with grayish white; adult males 



metallic green beneath, the throat bluish. 



Iache. (P. 371.) 

 P. Tail Dot blue-black, etc. 

 m 1 . Exposed culmen more than half as long as tail. 



n 1 . Tail rufous or chestnut, the feathers usually with dusky 



or brouzy teruiinal margins Amazilla. (P. 302.) 



w a . Tail dull greenish, with dusky subterminal band (ex- 

 cept on middle feathers), the outer feathers tipped 

 with dull, light grayish brown; plumage in gen- 

 eral very dull, the lower parts dull brownish 



gray PhwuptilaA 



to 2 . Exposed culmen not more than half as long as tail. 



Basili na. (P. 3 '8.) 



* Lampornis Swains., Zool. Jour. in. 1827, 358. Type, Trochilus mango Linn. 

 (One Mexican, several West Indian, and several South American species.) 



t Phceoptila Gould, Iutr. Mon. Troch. Oct. ed., 1861, 169. Type, Cyanomyia (?) sor- 

 dida Gould. (The single known species peculiar to Mexico.) 



