1917.] Chapman, Distribution of Bird-life in Colombia. 335 



Inhabits the Subtropical Zone of the Western Andes, except at the north- 

 ern end. 



Hellmayr (P. Z. S. 1911, p. 1213) has shown that Gould's phwokemus is 

 based on the Concordia, Antioquia bird and not on the one occurring at 

 Merida, Venezuela, which Gould erroneously referred to Tphaeolcemus. The 

 latter form is described by Gould as having the " throat deep grayish blue," 

 whereas, the Merida bird, Hellmayr states, has the throat white and is 

 referable to albivitta. 



An error has evidently been made, therefore, in the Catalogue of the 

 British Museum (Vol. XIX, p. 158) in designating as the type of phaolcemus 

 a specimen in the Gould collection from Venezuela, rather than one from 

 Concordia. The case is further complicated by the fact that the form of 

 this bird inhabiting the western slope of the Central Andes and northern 

 end of the Western Andes can be referred to neither albivitta nor phaeolcemus, 

 and I have therefore described it under the name Aulacorhamphus albivitta 

 griseigularis. 



San Antonio, 4; Cerro Munchique, 1; Florida, 1; Cocal, 1. 



(15766) Aulacorhynchus albivitta griseigularis Chapm. 



Aulacorhynchm albivitta griseigularis Chapm., BuU. A. M. N. H., XXXIV, 

 1915, p. 639. (Sta. Elena, Cen. Andes, Col.). 



Char, svhsp. — Similar to A. a. 'phceoloimus (Gould) but the throat gray with a 

 faint bluish tinge instead of deep grayish blue; distinguished from A. a. albivitta by 

 the color of its throat, by the greater width, apically, of the blackish stripe on the 

 maxilla, and (in skins) by the absence of reddish at the end of this stripe and tip of 

 the mandible. 



Inhabits the Subtropical Zone of the western slope of th» Central Andes 

 and northern end of the Western Andes. 



Paramillo, 1; Sta. Elena, 4; Salento, 3; Miraflores, 3. 



(1577) Aulacorhynchus hsematopygius (Gould). 



Pteroglossus haematopygus Gould, P. Z. S., 1834, p. 147 (locality unknown). 

 Aulacorhamphus hcematopygius Scl. & Salv., P. Z. S., 1879, p. 537 (Concordia; 

 Remedios). 



Inhabits the Subtropical Zone of all the three ranges of the Andes. I 

 can discover no racial differences in our series of twenty-three specimens. 



La Frijolera, 4; Salencio, 1; San Antonio, 10; Gallera, 3; Ricaurte, 2; 

 Buenavista, Narino, 1; Miraflores, 1; Salento, 1; Andalucia, 3; west of 

 Honda (5000 ft.), 3 ; near Fusugasug^ 1 ; Buena Vista, 3. 



