A a 
eo BANGS — NOTES ON TANGARA GYROLOIDES. 75 
little yellower than the shining yellowish green of the coverts in 
gyroloides. If the bird of the Panama Railroad line must be 
called by one name or the other, I should unhesitatingly call it 
gyroloides. Thus it would seem all chance of bangsi having a 
continuous range to western Ecuador is precluded, and I do not 
hesitate to name the western Ecuador form. 
Chapman (The Distribution of Bird-Life in Colombia, 1917, 
p. 597) does not recognize the western Ecuador form, calling the 
bird ranging from Ricaurte, Colombia, to western Ecuador T’. g. 
bangs?, and cites this case as one of the many examples of broken 
distribution in range, in the region he is treating of. Perhaps he 
did not compare his birds very carefully with a sufficiently large 
series of the northern bangsz; at all events all skins I have seen 
from western Ecuador are constantly paler. 
There are four specimens in the Lafresnaye Collection, three 
of which certainly are the types of Lafresnaye’s name. They 
are not, of course, types of the species, which remain the origi- 
nal specimens or specimen in the Hooker collection, named by 
Swainson. They are, however, of some historical interest. All 
have original labels. No. 2916 has a tag on which only the 
word “ Bogota” is inscribed, not in Lafresnaye’s handwriting. 
It is the Colombian green-winged gyroloides. The other three, 
nos. 2917, 2918, and 2919, all have lengthy original labels 
written in the hand I take to be Lafresnaye’s. Discussion of 
synonymy almost always appears on the Lafresnaye labels, and 
is present as usual in the case of these three specimens. Besides 
this, no. 2917 has “‘Ag. gyroloides Nob. — Ag. peruviana Sw.” 
No. 2918 has “Ag. gyroloides Nob. Rio Negro ? — Cal. inter- 
medius Nob.” No. 2919 has ‘‘ Call. intermedius 9¢ Nob. in Mus. 
Nostra — Colombie.”” All three belong to the Peruvian form 
catharinae, with very large, bright yellow shoulder patches and 
greenish throat (between the blue of the neck and chestnut of 
the chin). I cannot find that the name ‘ intermedius’ was ever 
published, and I fancy it was an alternative manuscript name, 
which gave way to gyroloides in final naming of the species. 
