ATTHIS HELOISJ. 
HELOISA’S HUMMING-BIRD. 
ORNYSMIA HELOISA. Less, et De Latt. Rev. Zook, 1839, p. 15. 
MELLISUGA HELOISA. Gray & Mitch. Gen. of Birds, Yol. I., p. 113. 
TRYPHANA HELOISA. Bonp. Rev. et Mag. de Zool. (1854), p. 257. 
SELASPHORHS HELOISA]. Gould. Mon. Troch., Yol. III., pi. cxli. 
ATTHIS HELOISA. Gould. Introd. Mon. Trochil., p. 
The temperate regions of Mexico are the resort of this beautiful species of humming-bird. M. De Lattre, its discoverer, obtained 
the first specimens between Jalapa and Quatepec, and he says that the male rises very early, does not search for food after nine o’clock 
in the morning, seldom leaves the female and young, and confines himself to the forests, but does not disdain field flowers. 
In the Introduction to his Monograph of the Trochilkhe. Mr. Gould has instituted a new genus for this bird, as it seemed to possess 
characters separating it from Calothorax and Selasphorus, to whose members it was nearest allied, and his term Atthis, I have retained. 
Although it is now generally represented in collections, nothing more is known of its economy and habits than the few facts already 
given below. 
The male has the head and upper surface golden green; wings brown. Throat glistening filaceous red, the feathers considerably 
lengthened on the sides. Flanks buff, tipper part of breast, abdomen and under tail-coverts white. Tail has the central feathers bright 
green, the remaining ones are red at base, succeeded by a band of black, and terminating with an oval white spot. Bill is black, feet 
flesh-color. 
Female similar to the male, but is destitute of the brilliant gorget, the throat being white spotted with brown. 
The figures are life-size. The plant is the Begonia Biserrata. 
