318 REPORT OF NATIONAL Ml'SEUM, 1890. 



/'. Wing more than 0.40; ailuU males without a brilliant 

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

 )/i'. Tail partly rieh chestnut, glossed with bright purple; 



bill rather distinctly curved I.auiporuis.* 



m-. Tail without chestnut or bright purple; bill straight. 

 «'. Tail wholly (male'i or partly (female) greenish bronze- 



Eugenes. (P. :U9.) 



»'-. Tail wholly or chietly black CicUgena. (P. 32:1.) 



1-. Wing less than •J.O."): adult males witli a brilliant gorget of 

 metallic red. purple, or violet. 

 hi'. Middle tail feathers narrower near end than at base. 

 «'. Exposed culnieu 0.00 or more : outer tail feathers tip- 

 ped with white ouly in females, 

 o'. Outer tail feather not decidedly shorter than middle 

 pair, and not conspicuously narrower than the 

 next: adult males with six iuuermost quills ab- 

 ruptly much smaller and narrower thau the rest. 



Trochilus. (.P- 325.) 



o'. Outer tail feather decidedly shorter thau the middle 



l>air and abruptly narrower than the next (except 



in C. helena') ; adult males with innermost quills 



normal. 



j>'. Tail without any rufous: adult males with tail 



forked (^but leathers not pointed) and top of head 



brilliantly metallic, like gorget. Cij/.i/2)/«. (P. 333.) 



p-. Tail partly rut'ous, more or less graduated, in both 



sexes; adult males with top of head greenish or 



bronzy, totally unlike gorget (except in i5. Jlo- 



rcsii) Sdasphorus. (P. 331*.) 



«-. Exposed culmeu not more than 0.50: outer tail feathers 



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



HI-. Middle tail feathers broader near end thau toward base. 



SieUula. (P. 354.) 



A.-. Feathering of forehead scarcely extending beyond posterior 



portion of nostrils, the scale over latter therefore naked for 



the gi-eater part at le;ist ; bill very broad at base. 



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



feathei-s tipped with dull grayish : in female shallowly 



emargiuate. green basally, blue-black terminally, the 



outer fejithers tipped with grayish white: adult males 



metallic green beneath, the throat bluish. 



lache. (P. 3T1.) 

 r-. Tail not bine-black, etc. 



wi'. Exposed culmen more thau half as long as tail. 

 m'. Tail rufous or chestnut, the feathers usually with dusky 



or bronzy terminal margins AmaziJia. (P. 362.) 



H-. 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 rhaoptilaJ 



m"-. Exposed culmen not more than half as long as tail. 



Bimli na. (P. 3.)8.) 



• Lampornis SwAixs., Zool. Jour. lu. Id27, 358. Type, JYochiln^ mango Linn. 



(One Mexican, several West Indian, and several South American specie^*.) 



t Phaoptihx Gort.r», Intr. Mon. Troch. Oct. ed., ISGl, 169. Type, Cyanomifia {f) sor- 

 d'KUi GoiLr>. (,The single known species peculiar to Mexico.) 



