Carriker : List of the Birds of Costa Rica. 515 



k. Under tail-coverts concolorous with abdomen. 



Chalybura melanorrhoa, 9 • 

 kk. Under tail-coverts white. Chalybura isaurce, 9 • 



jj. Lower parts not as in (j). 



k. Throat glittering green, or lilac, or flame-color, or violet, 

 with or without acuminate, elongated plumules on 

 head, or else throat whitish, each feather with a dusky 

 or bronzy spot, or else throat and abdomen buff, the 

 latter with golden spots, or else breast with a black 

 patch. Size small (wing not more than 43; bill not 

 more than 16). 

 I. Throat glittering green, or violet, or flame-color. 

 m. Throat green, some of feathers on head elongated 

 and acuminate. 

 n. Green of throat followed (posteriorly) by black. 



Lophornis helence, $ . 



nn. Gieen of throat followed (posteriorly) by white. 



o. Abdomen cinnamon, sides washed with green. 



Lophornis adorabilis, $ . 

 00. Abdomen gray, washed with gieen. 



Lophornis delattrii, $ . 

 mm. Throat of a brilliant glittering color, but not green. 

 n. Tail without rufous area or edgings (dark purple) ; 

 throat deep flame-color. 



Trochilus colubris, $ . 

 nn. Tail with more or less rufous. 

 o. Median rectrices shining green. 



p. Throat pinkish rose-color, without leaden 

 tinge. 



Selasphorus flammula flammula, $ . 

 pp. Throat lilac-red, with a leaden hue. 



Selasphorus flammula torridus, $ . 

 00. Median rectrices purplish-black or largely 

 cinnamon. 

 p. Throat violet-purple; tail long (35 mm.). 



Calliphlox bryantce, $ . 



pp. Throat rosy- red or flame-color; tail shorter 



(26 mm.). 



q. Throat flame-color; median rectrices 



largely rufous, only a stripe of purplish 



on outer web next to shaft. 



Selasphorus scintilla, $ . 

 qq. Throat rosy-red; median rectrices largely 

 purplish-black. 

 r. Median rectrices edged with cinnamon 

 basally (bill, 16 mm.). 



Selasphorus simoni, <? . 



