SELASPHORUS. 353 
2. Selasphorus rufus. 
Trochilus rufus, Gm. Syst. Nat. i. p. 4971. 
Trochilus (Selasphorus) rufus, Sw. Faun. Bor.-Am. ii. p. 324”. 
Selasphorus rufus, Gould, Mon. Troch. iii. t. 187 (May 1852)*; Scl. P. Z. S. 1864, p. 177°; 
Baird, Brewer, & Ridgw. N.!Am. B. ii. p. 459 (partim) *; de Oca, La Nat. iii. p.99°; Sumi- 
chrast, La Nat. v. p. 2507; Herrera, La Nat. (2) i. p. 322°; Salv. Cat. Birds Brit. Mus. 
XVi. p. 392°, 
Selasforus rufus, Dugés, La Nat. i. p. 141°; Villada, La Nat. ii. p. 855". 
Selasphorus henshawi, Elliot, Bull. Nutt. Orn. Club, ii. p. 102%; Syn. Troch. p. 111™. 
Supra (cervice postica et tectricibus supracaudalibus inclusis) cinnamomeo-rufus, capite summo obscure aureo- 
viridis, plumis singulis cinnamomeo limbatis: subtus gula micanti-rubra, pectore et abdomine medio 
albis, hypochondriis et tectricibus subcaudalibus cinnamomeis; cauda saturate cinnamomea nigro ter- 
minata, rectricibus medianis proximis ad apicem profunde excavatis in pogonio interno, minus profunde in 
pogonio externo: rostro nigro. Long. tota cirea 3-5, ale 1-6, caudex 11, rostri a rictu 0°75. 
? supra nitenti-gramineo-viridis, capite summo obscuriore: subtus alba, gula maculis discalibus fuscis notata, 
et plumis micanti-rubris irregulariter ornata, hypochondriis et tectricibus subcaudalibus cinnamomeo 
lavatis ; cauda ad basin cinnamomea, rectricibus mediis nitenti-viridibus saturatioribus et cerulescentiori- 
bus ad apicem, lateralibus late albo terminatis et fascia subterminali nigra notatis. (Descr. maris et 
feminse ex Zacatecas, Mexico. Mus. nostr.) 
Hab. Nortu America, western portion from British Colombia to Arizona.—MeExico, 
Guanajuato (Dugés !°), Zacatecas and Xeres in Zacatecas, Plains of San Luis 
Potosi, Sierra de Valparaiso, Ajusco in the Valley of Mexico (W. B. Richardson ®), 
Valley of Mexico (White*, Villada™, de Oca®, Sumichrast’, Herrera’), Tetelco, 
Valley of Mexico (/. Herrari-Perez®), Patzcuaro (F. D. G.°), Volcan de Colima 
(W. B. Richardson ®), La Parada, Oaxaca (Boucard), Mirador (Sartorius, in U.S. 
Nat. Mus.). 
Selasphorus rufus is a winter visitor to the highlands of Mexico, where it arrives in 
August and remains until the following spring. The remainder of the year it spends 
in the Western States of North America, reaching British Columbia in its northern 
migration. Its breeds during the summer months, and it is only in males from the 
north that the full beauty of its plumage is seen. All specimens of that sex from 
Mexico are in more or less faded and worn plumage. 
According to de Oca ° it is abundant in the Valley of Mexico in autumn, at which 
time Villada says it breeds 11; but this statement, we think, requires confirmation, The 
highlands of the State of Oaxaca are the extreme southern limit of the autumn 
migration of this species. It is quite unknown in the highlands of Guatemala. 
8. Selasphorus scintilla. 
Trochilus (Selasphorus) scintilla, Gould, P. Z. S. 1850, p. 162". 
Selasphorus scintilla, Gould, Mon. Troch. iii. t. 188 (May 1852)*; Cab. J. £. Orn. 1862, p. 165° ; 
Salv. P. ZS. 1867, p. 155°; 1870, p. 209°; Cat. Birds Brit. Mus. xvi. p. 395°; Lawr. 
Ann. Lyc. N. Y. ix. p, 1237; v. Frantz. J. f. Orn. 1869, p. 315°; Boucard, P. Z. S. 
1878, p. 70°. 
BIOL. CENTR.-AMER., Aves, Vol. II., September 1892. 45 
