Ridgway New Forms of Micropodidx and Trochilidse. 55 



Anthracothorax prevosti gracilirostris subsp. nov. 



Type from Unison, Costa Rica. No. 22,<i2<>, coll. K. A. and<). Bangs. 

 Adult male. December 16, 1907, C. F. I'nderuood. 



Differing from A. p. prevosti in decidedly shorter and more slender bill, 

 less bronzy or golden green upper parts, and darker under tail-coverts; 

 from A. p. hendersoni in more slender bill and very much less bron/y 

 color of upper parts and lateral under parts. 



Costa Rica and Nicaragua. 



Average measurements of the three forms are as follows: 



Males. 



Florisuga mellivora tobagensis subsp. nov. 



Type from Tobago. No. 74,908, U. S. Xat, Mus. Adult male. F. A. 

 Ober. 



Similar to F. m. mellivora, but decidedly larger. 

 Measurements of type. Wing, 70.5; tail, 38.5 mm. 



Nesophlox gen. nov. (Trochilidtv). 



Type. Trochilus evelynx Bourcier. 



Similar to CalUphlox Boie, but uing relatively much larger, with outer- 

 most primary not attenuated terminally; adult males with lateral rectrices 

 broadly edged with rufous on inner webs, and adult females with tail more 

 than half as long as wing. 



( 1/770-0?, island ; </>X6, a flame. ) 

 Species: 



Nesophlox evelyinv ( Bourcier). 

 Nesophlox lyrura (Gould). 

 Nesophlox bryantse ( Lawrence ) . 



