INTRODUCTION.

 

Ixxxvill
{ats
Licht. in Mus. Berlin. a

Trochilus lasiopygus; oe
Cab. et Hein. Mus. Hein. Theil iii. p. 74.

Heliotryphon Parzudaku,
Habitat. New Granada ; and Ecuador, where it is rare.
Jol. IV. Pl. 2

266. HELIOTRYPHA VIOLA, Gould Vol. IV. Pl. 241.

Heliangelus viola, Gould.

Parzudakia viola, Reichenb. Aufz. der Col. p. 12.

Ramphomicron viola, Id. Troch. Enum. p. 10.

Heliotryphon viola, Cab. et Hein. Mus. Hein. Theil i. p. 74.

Habitat. Ecuador.

Genus Hexiancexus, Gould.

(‘Hnuos, sol, et ayyedos, angelus. )

Generic characters.
Male.—Bill straight, about the same length as the head, and. cylindrical ;
; hind toe and nail the same length as the middle

wings somewhat powerful ; tail t

rather round in form and of medium size ; feet moderately strong

toe and nail ; gorget luminous, bounded below by a crescent of white.

Female.—Destitute of luminous colouring.
(

This is perhaps a better-defined genus than any other of those into which the Andean groups of Humming-
Birds have been divided. Its characteristics are a moderately long bill surmounted by a band of lustrous colour
on the forehead, and a deep luminous gorget separated from the general colour of the body by a semicircular band

of white. Like the Helianthee and Heliotryphe, the species of this form range along the Andes on both sides of the

equator.

Vol. IV. Pl. 242.

267. HeLIANGELUS CLaRISs@

Trochilus Clarissa, Reichenb. Troch. Enum. p. 10.
Heliangelus Clarisse, Cab. et Hein. Mus. Hein. Theil ii. p. 75.
Anactoria Libussa, Reichenb. Aufz. der Col. p.12; Id. Troch. Enum. p. 10.

Habitat. The high lands of New Granada. Plentiful in collections from Bogota.

268. HrLIANGELUS STROPHIANUS, Gould Vol. IV. Pl. 243. 4
Trochilus Strophiana, Reichenb. Troch. Enum. p. 10.

Habitat. Ecuador.

269. HELIANGELUS SPENCEI : : : : ; : : : : / s : Vol. IV. Pl. 244.
Trochilus Spencet, Reichenb. Troch. Enum. p. 10.

Habitat. The ranges of Sierra Nevada de Merida in New Granada.

270. HeELIANGELUS AMETHYSTICOLLIS : : : ‘ : : : ; 5 : Vio le Verge 2Ar
Trochilus amethysticollis, Reichenb. Troch. Enum. p. 10.
Habitat. Peru.

271. Hexiancetus Mavors, Gould . : : : ; : : : : Vol. IV. Pl. 246
Trochilus Mavors, Reichenb. Troch. Enum. p. 10.

Habitat. The Paramos of Portachuela and Zumbador in New Granada.

That almost terra incognita, so far at least as its zoological productions are concerned, the Andes of La Paz
} fr is ' ‘ : : 9 ’
. given a through the researches of M. Warszewicz, one of the most distinct as well as one of the most beautiful
orms yet discovered among the Trochilide. This remarkable bird is the type of my genus Diphlogena, to which I

have since added a Sec nd Ss ie RU Yr NV eserv y ove
. 0 Speci Ss under he name of D. Au ora, V ith a mark of reser ation in case it ma pr V
Oo de e ema c oO . ris 5 tt 7 re j 1 1

th f f D I ; for the pt esent, howev er, I reg ard it as dist inct.

Genus Diputogana, Gould.

(é:-, duplex, et dro
: X, et drAoyawvos, fl
Generic characters. BND, > Uovemtanteius)

Male.— Bill straight ¢ er |
aight and longer than the head ; wings very long and pointed ; tail lengthened and deeply forked ;