522 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
[Juliamyta] typica ScLaTER and Satvin, Nom. Av. Neotr., 1873, 93, part. 
Damophila julie (not Ornismyia juliae Bourcier) ScLaTER and Satvin, Proc. Zool. 
Soc. Lond., 1864, 365 (Panam4).—Satvin, Proc. Zool. Soc. Lond., 1870, 211 
(Calovévora, Panam4).—Muusant and VERREAUR, Hist. Nat. Ois.-Mouch., 
ji, livr. 1, 1875, 56, part (Panam4). 
D{amophila] panamensis BertErscu, Journ. fiir Orn., 1884, 312 (Panamé and 
Verégua); Proc. U.S. Nat. Mus., xi, 1888, 563, in text. 
Damophila panamensis Savin, Cat. Birds Brit. Mus., xvi, 1892, 237 (Lion Hill, 
Paraiso, Panam4, and Chepo, Panam4).—Satvin and Gopmavn, Biol. Centr.- 
Am., Aves, ii, 1892, 309 (Calovévora, Lion Hill, Paraiso, and Chepo, 
Panam4; Costa Rica?).—Banas, Proc. New Engl. Zool. Club, ii, 1900, 20 
(Loma del Leén, Panam4). 
Juliamyia panamensis BoucarD, The Hum. Bird, ii, 1892, 80 (Panam4). 
D[amophila] julie panamensis Hartert, Das Tierreich, Troch., 1900, 71 (monogr.). 
[Damophila] panamensis SHarpz, Hand-list, ii, 1900, 112. 
Genus POLYERATA Heine. 
Polyerata® Heine, Journ. fiir Orn., March, 1863, 194, in text. (Type, Trochilus 
amabilis Gould.) 
Rather small Trochilide (length about 80-90 mm.) related to 
Agyriria, 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 wing, 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 rather narrow, partly (sometimes mostly) 
feathered operculum. Tarsus completely covered with short feathers; 
middle and inner toes equal in 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 point. 
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 terminally; abdomen 
grayish white. Adult male with pileum brilliant metallic green, 
throat metallic violet-blue; adult female with pileum less brilliant 
green and throat spotted with dull green or blue. 
Range.—Costa Rica to western Ecuadér. (Four species, including 
subspecies. ) 
@‘*Von zoduijpatoc, sehr erwiinscht.”” (Heine.) 
