310 TROCHILID®. 
da". Major; rostrum longius ; pectus tantum cyaneo-micans. 
‘POLYERATA. 
'Polyerata, Heine, J. f. Orn. 1863, p. 194; Salv. Cat. Birds Brit. Mus. xvi. p. 237. 
Damophila, Gould, Mon. Troch. v.t. 341 ; Elliot, Syn. Troch. p. 233 (nec Reich., partim). 
This genus was generally merged with Damophila until Herr Heine separated it. 
The form of the tail distinguishes it, the rectrices being all of nearly equal length, the 
outer pair being equal to the middle pair and only very slightly shorter than the rest. 
The glittering colour of the under surface is confined to the breast. 
' Two species constitute the genus, one of which spreads from Costa Rica (missing a 
considerable portion of the State of Panama) to Colombia and Western Ecuador. ‘The 
other is restricted to the neighbourhood of Chiriqui. | 
1. Polyerata amabilis. 
Trochilus ( ?) amabilis, Gould, P. Z. S. 1851, p. 115°. 
Damophila amabilis, Gould, Mon. Troch. v. t. 341 (Sept. 1859)*; Lawr. Ann. Lye. N. Y. vii. 
p. 292°; ix. p. 128°; Scl. & Salv. P. Z. S. 1864, p. 365°; 1879, p.530°; Boucard, P. Z.S. 
1878, p. 71°; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 122°. | 
Polyerata amabilis, Heine, J.f. Orn. 1863, p.194°; Berl. J. f. Orn. 1884, p. 312°; 1887, p. 333”; 
Salv. Cat. Birds Brit. Mus. xvi. p. 237. 
Supra nitenti-graminco-viridis, tectricibus supracaudalibus purpureo-cupreis ; pileo et capitis lateribus micanti- 
viridibus, gula media nigra, pectore micanti-cyaneo; abdomine medio griseo, hypochondriis viridibus ; 
tectricibus subcaudalibus obscure fuscis pallide griseo limbatis ; cauda rectricibus mediis rufescente cupreis, 
reliquis chalybeis: maxilla nigra, mandibula carnea apice nigra. Long. tota 3°6, ale 2°1, caude 1:15, 
rostri a rictu 0°8. 
@ supra nitenti-gramineo-viridis, pileo vix obscuriore, tectricibus supracaudalibus et rectricibus intermediis 
sicut in mare: subtus griseo-alba, gutturis plumis macula discali viridi, rectricibus lateralibus griseo termi- 
natis. (Descr. maris et feminee ex Chepo, Panama. Mus. nostr.) 
Hab. Cosra Rica (Endres), Pozo Azul de Pirris (Zeledon 8), Pacuare (Carmiol +), San 
Carlos (Boucard "); Panama, Lion Hill (M*Leannan **), Paraiso Station (Hughes !*), 
Line of Railway, Chepo (drcé !*), Turbo (Schott).—Cotompra 16; Ecovapor. 
Gould’s description of this species was based upon a trade skin from Bogota 1. The 
bird is now known as not unfrequently represented in the collections of the bird-hunters 
of Bogota, and as occurring southwards in Western Ecuador and northwards to the 
Quindiu mountains and the State of Antioquia ® to the line of the Panama Railway. 
Here we seem to lose it in the rest of the State of Panama, but it reappears in Costa 
Rica, where several collectors have found it. Its place in Western Panama seems to 
be occupied by P. decora, a closely allied form. . 
