MICROCHERA.—CALLIPHARUS. 269 
diminutive creature. After a considerable number of dippings it alighted on a twig 
near at hand, and commenced pluming its feathers.” 
Dr. Merritt considered that the flight of this species was not so persistent as that of 
other Humming-Birds, as it appeared to rest more frequently: this he attributed to 
the extreme shortness of its wings. 
Our collector Arcé procured us many specimens of I. albocoronata, most of which 
he obtained near Santiago de Veraguas. These include adults of both sexes, as well 
as young males in various states of advancing plumage. ‘The latter at first resemble 
the female, the dark feathers of the under surface are then gradually developed, and 
last of all the white crown is assumed. 
Gould’s drawings were taken from the typical specimens lent him by Mr. Lawrence. 
2. Microchera parvirostris. 
Panychlora parvirostris, Lawr. Pr. Ac. Phil. 1865, p. 391. 
Microchera parvirostris, Salv. P. Z. 8S. 1867, p. 154°; Ibis, 1872, p. 319°; 1892, p. 327*; Cat. 
Birds Brit. Mus. xvi. p. 67°; Lawr. Ann. Lye. N. Y. ix. p. 122°; Boucard, P. Z.S. 1878, 
p- 69"; Gould, Mon. Troch. Suppl. t. 30 (Aug. 1880)°; Zeledon, An. Mus. Nac. Costa 
Rica, 1887, p. 121°. 
M. albocoronate similis, sed colore plerumque letiore nitenti-cupreo-rubido ; caude fascia terminali latiore, 
margine suo interno male definito. 
2 femine M. albocoronate quoque similis, sed cauda ad basin angustiore, alba fascia subterminali latiore, et 
margine suo interno male definito. (Descr. maris et feminz ex Chontales, Nicaragua. Mus. nostr.) 
Hab. Nicaracua, Matagalpa (W. B. Richardson*+), Chontales (Belt?); Costa Rica, 
Tucurriqui (Arcé ?), Angostura ! °, La Balsa * (Carmiol), Rio Sucio (Zeledon®). 
Mr. Lawrence’s description ! of this bird was based upon a female which he con- 
sidered to belong to the genus Panychlora, and, having a shorter bill than usual in 
members of that genus, he called it P. parvirostris, a specific name that loses its 
signification now that the bird is better known, and proves to be a Microchera closely 
allied to, but quite distinct from, Jf. albocoronata. 
The range of this species extends from Costa Rica, where it was first discovered, 
to Nicaragua. In the latter country Belt obtained a series of beautiful specimens 
at Chontales*, and quite recently we have received a young male example from 
Mr. Richardson, who shot it near Matagalpa in the mountains near the sources of 
the Segovia river +. 
b®. Pileus niger, tegule nasales haud omnino plumis obtecte. 
CALLIPHARUS. 
Eupherusa (Clotho), Mulsant, Ann. Soc, Linn. Lyon, xxii. p. 205 (1875). 
Callipharus, Elliot, Syn. Troch. p. 211; Salv. Cat. Birds Brit. Mus. xvi. p. 67. 
The single species included in this genus was described by Mr. Lawrence as a 
