386 | Bulletin American Museum of Natural History. [Vol. XXXIV, 
spilorhynchus from eastern Ecuador, Gould (P. Z.S., 1858, p. 149) states that 
it differs from nzgrirostris in having “obscure brownish red at the base of the 
upper mandible’’; and Sclater (P. Z.S., 1858, p. 75) writes that Napo speci- 
mens “have an obsolete orange band at the base of the upper mandible, 
which extends rather more forward in front of the nostrils.” Three speci- 
mens from the Central Andes, where singularly enough this species appears 
to inhabit the Temperate Zone, are evidently intermediate between spilo- 
rhynchus and occidentalis but are nearer the former. ‘They have more red 
on the maxilla than in a specimen from Ecuador, but none or practically 
none on the mandible. It appears therefore that A. n. nagrirostris is re- 
stricted to the Eastern Andes and occidentalis to the Western Andes of 
Colombia, while spilorhynchus, an intermediate form, inhabits the Central 
Range and extends southward into Ecuador. 
Chloronerpes rubiginosus buenavistze subsp. nov. 
Char. subsp.— Similar to C. r. meridensis, but upperparts and olive bars of under- 
parts darker, cheeks grayer, bill longer; similar to C. r. canzpileus (D’Orb.)! but with 
much more red and consequently darker, less golden in color. Similar to C. r. allent 
(Bangs) but olive bars of underparts wider and yellowish ones narrower; tail always 
(?) unbarred; posterior underparts, especially lower tail-coverts, less distinctly 
barred. 
Type.— No. 121768, Am. Mus. Nat. Hist., o’, Buena Vista (above Villavicencio, 
4500 ft.), Hastern Andes, Colombia, March 5, 1918; Geo. K. Cherrie. 
Remarks.— The unbarred tail-feathers distinguish this bird from true 
rubiginosus and its nearer allies and indicates its closer relationships with 
meridensis and canipileus of which it is the obvious geographical representa- 
tive. Of buenaviste we have five specimens all from Buena Vista and the 
characters separating it from meridensis are based on comparison of these 
specimens with the type and five topotypes of the last-named form. Of 
allent I have examined the type and topotype. Of canipileus, however, 
we have only a single authentic specimen; a female collected by Rusby at 
Reyes, Bolivia. This bird agrees with the Buena Vista specimens in size, 
but has the back less ruddy, more golden, as stated above. _ 
Possibly a large series may show that the bird for which I have here 
proposed the name buenaviste may not be separable from the Bolivian bird, 
but this seems improbable. In any event, the current reference of cani- 
pileus to rubiginosus is obviously incorrect since the Bolivian bird is a 
member of the group with unbarred rectrices. It should be added, however, 
1 Picus canipileus d’Orb. Voy. Am. Mer., IV, 1835-44, p. 379 (Chupé, Yungas, Bolivia). 
