Ridgway — New Forms of Micropodidae and Trochilidae. 55 



Anthracothorax prevosti gracilirostris subsp. nov. 



Type from Bolson, Costa Rica. No. 22,62i), coll. E. A. and O. Bangs. 

 Adult male. December 16, 1907, C. F. Underwood. 



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. hendersoui in more slender bill and very much less bronzy 

 color of upper parts and lateral under parts. 



Costa Rica and Nicaragua. 



Average measurements of the three forms are as follows: 



Males. 



A. p. prevosti (24 specimens) 

 A. 'p. gracilirostris (9 specimens) 

 A. p. hendersoni (4 specimens) 



26.2 

 24.4 

 22.9 



Females. 



A . p. prevosti ( 15 specimens ) . . 

 A. p. gracilirostris { 10 specimens) 

 A. p. hendersoni (2 specimens) 



28.1 

 25.4 



Florisuga mellivora tobagensis subsp. nov. 



Type from Tobago. No. 74,908, U. S. Nat. 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. iTrocliiiidn). 



Type.- — Trochilus evelynte Bourcier. 



Similar to CalliphJo.v Boie, l)ut wing 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. 



(v^ffos, island; ^X6?, aflame.) 

 Species : 



Nesophlox evelyuie (Bourcier). 

 Nesophlo.c lyrura (Gould). 

 Nesophlox bryantif (Lawrence). 



