SELASPHORUS.—TROCHILUS. 307 
7. Selasphorus flammula. 
Selasphorus flammula, Salv. P. Z.S. 1864, p. 586"; Cat. Birds Brit. Mus. xvi. p. 398*; Lawr. Ann. 
Lye. N. Y. ix. p. 123°; v. Franiz. J.f. Orn. 1869, p.815*; Boucard, P. Z. S. 1878, p. 70°; 
Sharpe, in Gould’s Mon. Troch., Suppl. t. 31 (Jan. 1883) °. 
S. ardenti similis, sed gula magis rosacea; caude rectricibus mediis nitenti-viridibus cinnamomeo limbatis, 
rectricibus lateralibus purpureo-nigris, apicibus albis in pogonio interno ad basin stricte cinnamomeo 
limbatis : rostro nigro, mandibule basi carnea. (Descr. maris exempl. typ. ex Volcan de Cartago, Costa 
Rica, Maus. nostr.) 
Hab. Costa Rica, Volcan de Cartago (Arcé}, Boucard®, Zeledon, in U. S. Nat. Mus.) 
Rancho Redondo (Zeledon, in U. S. Nat. Mus.), Candelaria Mts. (v. Frantzius*). 
A single male specimen sent us by Arcé from the Volcan de Cartago in Costa Rica 
formed the type of this species!. It is in rather faded plumage, but, when freshly 
moulted, males show a throat as brilliant as that of Selasphorus platycercus. Other 
collectors have since obtained specimens of this species, which appears to be restricted 
in its range to the higher mountains of Central Costa Rica. 
M. Boucard says® that it feeds from the flowers of mistletoe growing on small alpine 
trees near the summit of the Volcan de Cartago at an elevation of 10,000 feet and 
upwards above sea-level. 
ft, Nec remex extimus nec rectrices laterales ad apicem filiformes. 
TROCHILUS. 
Trochilus, Linnzus, Syst. Nat. i. p. 189; Salv. Cat. Birds Brit. Mus. xvi. p. 398. 
Neither the primaries nor the outer rectrices are filiform in the members of this 
_genus, and in this respect it differs from Selasphorus, to which it is otherwise closely 
allied. Thus restricted, Zrochilus contains two well-known species, and a third is 
included in it which we have not seen. 
Trochilus colubris, the best-known member of the genus, performs an extended annual 
migration from the British Provinces of North America to the Isthmus of Panama. 
T. alexandri is a more western bird, and its migrations are not so wide, and in winter 
do not pass the tablelands of Mexico. 
1. Trochilus colubris. 
Trochilus colubris, Linn. Syst. Nat. i. p. 191*; Gould, Mon. Troch. iii. t. 131 (May 1858) *; Sel. 
& Salv. Ibis, 1859, p. 129°; Scl. P. Z. S. 1859, pp. 367*, 386°; 1864, p. 176°; Salv. Ibis, 
1860, pp. 195", 263°, 266°; P. Z. S. 1870, p. 208%; 1889, p. 365 “; Cat. Strickl. Coll. 
p. 8364"; Cat. Birds Brit. Mus. xvi. pp. 399, 667"; Lawr. Ann. Lye. N. Y. ix. p.123"; Bull. 
U.S. Mus. no. 4, p. 32”; v. Frantz. J. f. Orn. 1869, p. 315“; Villada, La Nat. il. p. 352 MS; 
Baird, Brewer & Ridgw. N. Am. Birds, ii. p. 448"; de Oca, La Nat. ii. p. 22"; Boucard, 
