522 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



[Juliamyia] typica Sclater and Salvin, Nom. Av. Neotr., 1873, 93, part. 



Damophilajulise{notOrms7nyiajuUaeBourciei) Sclater and Salvin, Proc. Zool. 

 Soc. Lond., 1864, 365 (Panama).— Salvin, Proc. Zool. Soc. Lond., 1870, 211 

 (Calov^vora, Panamd). — Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., 

 ii, livr. 1, 1875, 56, part (Panama). 



D[amophila] panamensis Berlepsch, Journ. fiir Orn., 1884, 312 (Panama and 

 Verdgua); Proc. U. S. Nat. Mus., xi, 1888, 563, in text. 



Damophila panamensis Salvin, Cat. Birds Brit. Mus., xvi, 1892, 237 (Lion Hill, 

 Paraiso, PanamA, and Chepo, Panama) .—Salvin and Godman, Biol. Centr.- 

 Am., Aves, ii, 1892, 309 (Calovevora, Lion Hill, Paraiso, and Chepo, 

 Panama; Costa Rica?).— Bangs, Proc. New Engl. Zool. Club, ii, 1900, 20 

 (Loma del Leon, Panama). 



Juliamyia panamensis Boucard, The Hum. Bird, ii, 1892, 80 (Panama). 



D[amophila] Julie panamensis Hartert, Das Tierreich, Troch., 1900, 71 (monogr.). 



[Damophila] panamensis Sharpe, Hand-list, ii, 1900, 112. 



Genus POLYERATA Heine. 



Polyerataa Heine, Journ. fiir Orn., March, 1863, 194, in text. (Type, Trochilus 

 amdbilis Gould.) 



Kather small Trochilidse (length about 80-90 mm.) related to 

 Agyrtria, but differing in broader median and relatively narrower 

 lateral rectrices, narrower and relatively longer bill, and more varied 

 coloration; adult males with pileum brilliant emerald green and 

 throat bright metallic violet-blue; adult female essentially similar 

 but much duller, with no blue on throat or at most with merely 

 spots of that color, pileum less brilliantly green, and rectrices tipped 

 with gray. 



Bill nearly half as long as wmg, straight, narrow (terete), not dis- 

 tinctly if at all widened basally, the culmen broadly rounded except 

 mesorhinal portion, where narrowly ridged; tomia smooth; median 

 lateral sulci of maxilla and mandible fairly distinct. Nostril narrow, 

 slit-like, overhung by a ratlier narrow, partly (sometimes mostly) 

 feat] lered operculum. Tarsus completely covered with short feathers ; 

 middle and inner toes equal m length, the outer decidedly shorter; 

 hallux decidedly shorter than outer toe; toes small, but claws rela- 

 tively large. Wing more than twice as long as exposed culmen, the 

 outermost primary longest. Tail more than half as long as. wing, 

 slightly to decidedly rounded, the middle rectrices rather broad, the 

 lateral rectrices (especially outermost pair) much narrower, all con- 

 tracted terminally into a rounded pomt. 



Coloration. — Above metallic green or bronze-green, the upper tail- 

 coverts bronzy, the middle rectrices dull bronze or greenish bronze, 

 the lateral rectrices dull black, more grayish termuially; abdomen 

 grayish white. Adult male with pileum brilliant metallic green, 

 throat metallic violet-blue; adult female with pileum less brilHant 

 green and throat spotted with dull green or blue. 



Range. — Costa Rica to western Ecuador. (Four species, including 

 subspecies.) 



a "Von TioXuijpaxog, sehr erwunscht." (Heine.) 



