304 NORTH AMERICAS BIRDS. 



two-tbirds as long as wing, decidedly arched ; tail graduated, the middle pair 

 of feathers much longer than the others, all tipped with white. 



Pluniago ver^- dull, almost devoid of metallic colors Pha-thornis} 



a'. Anterior toes all cleft to the base ; bill never much compressed (usually broader 

 than deep), less than two-thirds as long as wing (except in Calothorax and 

 some species of Borifha'), usually- nearly straight (distinctlj- curved only in 

 Campijlopterus, Lampornis, Calothorax, and some species of Doricha); tail va- 

 riable in form, but, if graduated, the middle pair of feathei's neither elongated 

 nor white-tipped. 

 6'. Inner webs of two outer tail-feathers white, except at end. 



Secondaries rufous, tijiped with darker; wing about 2.10-2.40. 



Eupherusa.' 

 v. Inner web of two outer tail-feathers without white, except sometimes 

 at tip. 

 c". Exposed culmen not more than .45 ; tail even, two-thirds as long as 



wing, the latter 1.75-2.00 Abeillia? 



c'. Exposed culmen decidedly more than .45. 



J}. Tail nearly as long as wing, wedge-shaped, with feathers broad and 

 rounded at tips ; shafts of three outer quills much (sometimes 



enormously) thickened; wing about 2.60 Sphcnoproctus* 



(P. Tail much shorter than wing; if wedge-shaped, the feathers narrow 

 and pointed at tips. 

 e'. Exposed culmen less than one-fourth as long as wing. 



Quills and secondaries rufous, with darker tips or termi- 

 nal margins; tail plain dark purplish, tipped with dull 

 light grayish in female ; male with throat purplish 

 red, the remaining under parts rich purplish blue ; wing 



about 2.G5-3.20 Lamprolaima.^ 



e'. Ex]iosed culmen more than one-fourth as long as wing. 

 /'. Exposed culmen one-half as long as wing, or longer. 



<7'. Wing 2.20, or more ; tail rounded, the feathers 



fuct, at least two of them (Lumprolaima rhami J and Cnmp>ilnpHru» Iiemilcucunie .') have probably already been 

 Been by ornithologists. (See last foot-notes on pages 304 and 305.) 



' Phrthnrnif SwAixs., Zool. Jour. 1827, 357. Typo, Trochilna aupercHlomt Linn. (Two species in southern 

 Mc.\ico, and numerous species farther south.) 



' Euphcrusa GouLn, Mon. Troch. pt. xiv. 18.')7. Type OrniHrnijn eximin Dklattr. (One species in southern 

 Mexico, another in Ouatcmala, a third in Costa Rica and Voragua.) 



' Abeillia Bonap., Consp. i. 1850, 79. Type, Oniinmi/a abcillci Dr.i.ATTR. (One species in southern 

 Mexico and Central America.) 



* Sphrnoproctua Cad. A Hein., Mus. Hcin. iii. 1860, 11. Type, Onvamtjn pampn Leiss. (Ono species in 

 southern Mexico, another in Guatemahi.) 



' Lnmprnlnimn PvEicn., Aufz. dor Colib. ISo.l, 9. Type Oniitmi/a rhamI Less. (Ono species in highlands of 

 Mexico and Guatemala. This is possibly the species referred to in " Birds of the North-Wesl," p. 273, but 

 erroneously identified by Dr. Coucs as Eiignict fulgent, as follows : — " Mrs. Maxwell, of Boulder [Colorado], 

 . , . informs mo that she has seen on two or three occasions a Hummingbird with a flaniing-rcd throat and 

 breast, much larger than the present species [Selnnphorut plalijcercus], a. straggler from Mexico, jjcrhaps, as yet 

 andctcctcd within the limits of the United States.") 



