N0.125S. COLLECTION OF HrMMING BIRDS— OBERHOLSER. 317 
to the fauna of Ecuador, thus extending its range more than 500 miles. 
A careful comparison of these Ecuador birds with a series from Panama 
fails to reveal any tangible difference. 
AMIZILIS TZACATL JUCUNDA (Heine). 
Ermina jucunda Heine, Journ. fiirUrii., 1868, p. 188. 
Amazilia tzacntl jucunda Hartert, Tierreich, IX, 1900, p. 229. 
Three specimens from Santo Domingo, west Ecuador, apparently 
typical of this race. 
Generally seen feeding with A. dvmerilii. 
AMIZILIS DUMERILII (Lesson). 
Ornisnuja dumerilii Lesson, Hist. Nat. Colibris, suppl., p. 172, pi. xxxvi. 
AiniziUs dumeriU Oberholser, Proc. Acad. Nat. Sci. Phila., 1899, p. 207. 
Fourteen specimens from Santo Domingo, west Ecuador. These 
seem to be identical with examples from Puna Island and Guayaquil. 
There is considerable variation, aside from that ascribable to sex, in 
the extent and shade of the rufous on the lower parts. 
Found feeding in the small clearing of Santo Domingo, western Ecuador, on the 
low bushes and plants. 
HYLOCHARIS GRAYI (Delattre and Bourcier). 
Trochilus grayi Delattre and Bourcier, Rev. Zool. , 1846, p. 307. 
Ili/locharis grayi Bonaparte, Consp. Avium, I, 1850, p. 74. 
Twenty specimens, from Chota Valley; La Juna, above Chota Val- 
ley, north Ecuador; and Patia Valley, southern Colombia. 
The Chota Valley, where we obtained most of our specimens, is a hot, sandy, burnt- 
up valley in the north of Ecuador, with precipitous sides covered in parts with 
thorny bushes and acacias which during our visit were devoid of all trace of green; 
and it was a wonder what these birds could possibly find to feed on there. In life 
the bill is almost wholly pale tiesh color, and on two occasions when I saw them 
copulating the bill of the male became a diffused blood color. In Quito they are 
called "Chotas," but they are not found nearer to that city than the Chota Valley. 
^Ir. Hartert is apparently right in uniting Eucephala and Tlylocha 
r'lx, for structuralh" they can not be distinguished. 
CHRYSURONIA OENONE OENONE (Lesson). 
Oruismi/u oenone Lesson, Hist. Nat. Colibris, suppl., 1832, p. 157, pi. xxx. 
Cliri/suronia oenone Bonaparte, Consp. Avium, I, 1850, p. 75. 
Ten specimens, from Archidona, Baeza. and Rio Napo, east Ecuador. 
These are typical of true oenone^ as is shown bv comparison with birds 
from Trinidad and Colombia. 
