1917.] Chapman, Distribution of Bird-life in Colomhia. 601 



Common in the Subtropical Zone of all three ranges. I can detect no 

 constant well-marked differences in our series from the appended localities. 

 Western birds have the bill larger and the females may be brighter, while 

 two males from La Candela have the greater wing-coverts externally mar- 

 gined with Antwerp-blue, but this may be an individual variation. 



An excellent series of ten males from Valparaiso in the Santa Marta 

 group averages greener than birds from the localities above mentioned. 



La Frijolera, 1; San Antonio, 5; Cerro Munchique, 2; Ricaurte, 3; 

 La Sierra, 6; Popayan, 2; Sta. Elena, 3; Barro Blanco, 3; Aguadita, 5; 

 ElRoble, 5; Subia, 7. 



(4232) Iridosornis dubusia dubusia (Bonap.). 



Tanagra dubusia Bonap., Consp. Av., I, 1850, p. 239 (Colombia). 

 Iridosornis dubusia Scl. & Salv., P. Z. S., 1879, p. 500 (Sta. Elena). 



Occupies the Temperate Zone of the Eastern Andes and southward into 

 Ecuador. A specimen collected by us at El Pifion agrees closely with two 

 old Bogota skins and with two old, and three recently collected skins said 

 to have come from west of Quito. In view, however, of the fact that we 

 have a specimen of /. d. ignicapilla from Loja, Ecuador, it seems not improb- 

 able that these "Quito" skins came from east of that city. All have the 

 crown-patch cadmium-yellow with a slight ochraceous tint rather than 

 cadmium-orange or orange-chrome as in /. d. ignicapilla. The male in 

 Iridosornis dubusia differs from the female in the greater extension poste- 

 riorly of the shiny purple-blue of the breast. 



El Piiion, 1. 



(4232a) Iridosornis dubusia ignicapillus Chapm. 



Iridosornis dubusia ignicapillus Chapm., Bull. A. M. N. H., Vol. XXXIV, 1915, 

 p. 656 (Andes w. of Popayan). 



Char, subsp. — Similar to I. d. dubusia (Bonap.) of the Bogotd, region but with 

 the crown-patch orange-chrome or cadmium-orange instead of cadmium-yellow 

 with a slight ochraceous tinge. 



Inhabits the Temperate Zone of the more southern part of the Central 

 and Western Andes. 



Andes w. of Popayan (10,340 ft.), 12; Almaguer, 6. 



(42326) Iridosornis dubusia cseruleoventris Chapm. 



Iridosornis dubusia cmruleoventris Chapm., Bull. A. M. N. H., XXXIV, 1915, 

 p. 657 (ParamiUo). 



Char, subsp. — Crest cadmium-orange, as in I. d. ignicapilla, but differing from 



