1917.] Chapman, Distribution of Bird-life in Colombia. 539 



specimens most of them agree essentially with Plate II, in the Biologia 

 Centrali Americana, and both above and below are therefore much more 

 richly colored than four old Guatemalan sldns, the pale colors of which 

 Salvin tells us (l. c.) are due. to fading. Comparison with freshly collected 

 Central American specimens is needed to determine the status of the Andean 

 form for which the name Catharus maculatus (Scl., P. Z. S., 1858, p. 64, 

 Napo) is available. 



La Candela, 8; Andalucia (5000 ft.) 3; Buena Vista, 4. 



Family VIREONIDtE. Vieeos. 



(3563) Vireosylva olivacea (Linn.). 



Musdcapa olivacea Linn., Syst. Nat., I, 1766, p. 327 (Carolina). 



Vireosylvia olivacea Scl. & Salv., P. Z. S., 1879, p. 495 (Medellin; Remedios). 



Vireo oUvaceus Allen, Bull. A. M. N. H., XIII, 1900, p. 173 (Santa Marta). 



A specimen taken March 13, is in full prenuptial molt and is renewing 

 both wings and tail. 



Sta. Elena, 1, Dec. 1; Chicoral, 1, Oct. 9; Villavicencio, 1, March 13. 



(3564) Vireosylva flavoviridis flavoviridis Cass. 



Vireosylvia flavoviridis Cass., Proc. Acad. N. S. Phila., 1851, p. 152 (Panama). 

 Vireo flavoviridis Allen, Bull. A. M. N. H., XIII, 1900, p. 173 (Bonda). 



Two specimens from Chicoral, are the only ones obtained. 



(3565a) Vireosylva chivi caucse Chapm. 



Vireosylva chivi caucce Chapm., Bull. A. M. N. H., XXXI, 1912, p. 159 (Cali, 

 Col.). 



Char, subsp. — Differing from Vireo chivi chivi (Vieill.), as represented by a series 

 of twenty-two specimens from Chapada, Matto Grosso, in being slightly darker, 

 more olive-green above, with the crown deeper, more slaty, the superciliary whiter, 

 the auricular region more olive-gray, less yellow; differing from V. c. agilis (Licht.), 

 as represented by a large series from eastern Venezuela, Trinidad, and Santa Marta, 

 Colombia, in being much darker above, olive-green rather than yellow-green, with 

 the auricular region averaging more olive-gray, less yellow. Male, wing, 70; tail, 

 52; tarsus, 17; culmen, 12 mm. Female, wing, 66; tail, 48; tarsus, 17; culmen, 

 12 mm. 



Inhabits the Tropical Zone in the Cauca Valley. 



