This species has the under surface of the body white like C. viridipallens, but is easily distinguished from that bird by its amethyst-coloured throat. It has at present only been found in Costa Rica, where it replaces C. viridipallens of Guatemala.
The following is a translation of Mr. Salvin’s description:—
Back, sides, and lesser wing-coverts green; crown, sides of head, and chin brilliant glittering green; a long post-ocular streak of white extending as far as the nape, the latter blackish green; throat amethyst, the breast and the abdomen entirely white, the vent rather more ashy; wings dull purplish black; tail ashy green, the two centre feathers green, the others with a subterminal band of bronzy green, the tips themselves whitish; bill black; feet dusky. Adult female with the head and the throat plain, the terminal spot of the outer tail-feathers larger in size.
Total length 4 inches, wing 2·6, tail 1·45, long tail-feathers 1·55, bill from gape 0·95.
We have represented in the Plate two males and a female of the natural size.
[R. B. S.J
Featuring all 422 illustrated species from John Gould’s A Monograph of the Trochilidæ, or Family of Humming-Birds arranged by color.