145 
DELALANDE'S HUMMING-BIRD. 
Trochilus Delalandii.— X ikillot. 
Plate X. 
Trochilus Delalandii, Vieillot , Dictionnaire d'Histoirc Na- 
turelle ; Temminck , Planches Coloriees , pi. xviii. figs. 1, 2. 
— Le Plumet bleu Omismya Delalandii, Lesson , Ilisloire 
Naturelle des Oiseaux-mouches , pi. xxiii. male; pi. xxiv. 
female. 
This remarkable humming-bird was discovered in 
Brasil by MM. Delalande and Menetrier, and has 
been dedicated by Vieillot to the first of these natu- 
ralists. The crown of the male is adorned with a 
beautiful crest, composed of short feathers, with ge- 
nerally one narrow and elongated, which rises in the 
centre to an inch in length ; it is of a rich and deep 
blue, tipped with white, and appears very graceful, 
either when erected, or reclining and folded at rest. 
Behind the eye, upon the auriculars, there is a small, 
nearly circular patch of clear white, which forms a 
conspicuous object. The forepart of the throat, breast, 
and belly, are rich azure blue, surrounded with gray ; 
the head, back, flanks, and wing coverts, bright and 
