362 TROCHILIDA. 
1. Stellula calliope. 
Trochilus (Calothorax) calliope, Gould, P. Z. 8S. 1847, p. 11°. 
Calothorax calliope, Gould, Mon. Troch. iii. t. 142 (Sept. 1857)*; de Oca, La Nat. iii. p. 27°. 
Stellula calliope, Gould, Intr. Troch. p.90*; Elliot, B. N. Am. i. t. 23°; Villada, La Nat. ii. 
p. 859°; Salv. Cat. Birds Brit. Mus. xvi. p. 413”. 
Trochilus calliope, Herrera, La Nat. (2) i. p. 322°. 
Supra nitenti-aureo-viridis, capite summo obscuriore: subtus alba, gule plumis lateralibus valde elongatis, 
macula ovali rosaceo-rubra terminatis, colore ad basin albo (pracipue in mento) obvio, hypochondriis 
pallide cinnamomeis et viridi lavatis ; caude rectricibus mediis dorso concoloribus, lateralibus nigricantibus 
haud albo terminatis sed ad basin stricte cinnamomeo limbatis: rostro nigro. Long. tota circa 2°9, 
alz 1:5, caude 0:9, rostri a rictu 0-65. (Descr. maris ex Ajusco, Valley of Mexico. Mus. nostr.) 
2 subtus alba, gula maculis discalibus aureo-viridibus notatis, hypochondriis et tectricibus subcaudalibus 
cinnamomeo lavatis ; caude rectricibus lateralibus ad basin griseis, albo terminatis et fascia lata subtermi- 
nali nigra notatis. 
Hab. Nortu America, Western States from Oregon southwards to Arizona.—MExIco 1, 
Valley of Mexico (de Oca, Herrera®), Tetelco in the Valley of Mexico (F. Ferrari- 
Perez), Ajusco in the Valley of Mexico, Calvillo in Aguas Calientes (W. B. Rich- 
ardson'), Amula in Guerrero (Mrs. H. H. Smith’), Cerros de Guadalupe Pedregal 
(Villada®). 
Stellula calliope is by no means a common bird in Mexico, where it appears to be 
strictly confined to the highlands, from the mountains of Guerrero and the Valley of 
Mexico northwards. 
Within the United States it would appear to be much more numerous, at least 
during the summer months, when no doubt it breeds. 
The colour of the throat readily distinguishes this species, no other showing the 
white bases of the feathers of the throat amongst the glittering rosy spots at their 
ends. The female much resembles that sex of Atthis heloise, but may be recognized 
by its longer bill and by the bases of the lateral rectrices being greyish rather than 
cinnamon. 
d'. Cauda rotundata aut furcata haud cuneata; dorsum posticum JSascia transversa 
albida notatum; cervix interdum plumis lateralibus elongatis ornatis. 
m'. Cauda rotundata vic furcata ; plume cervicales laterales elongate. 
LOPHORNIS. 
Lophornis, Lesson, Hist. Nat. Ois.-Mouches, p. xxxvii; Salv. Cat. Birds Brit. Mus. xvi. p. 419. 
Telamon, Muls. & Verr. Class. Troch. p. 75. 
Paphosia, Muls. & Verr. Class. Troch. p. 75. 
Diaha, Muls. Ann. Soc. Linn. Lyon, xxii. p. 228. 
Lophornis is one of the most remarkable genera of Humming-Birds, on account of 
