1917.] Chapman, Distribution of Bird-life in Colombia. 289 



river southward, leaving the Atrato, lower Cauca and Magdalena Valleys 

 as the home of tzacatl. 



Dabeiba, 10; Puerto Valdivia, 2; Puerto Berrio, 1; west of Honda, 2; 

 Fusugasuga, 1 ; " Bogota region," 8. 



(1112) Amizilis tzacatl jucunda (Heine). 



Eranna jucunda Heine, J. f. O., XI, 1863, p. 188 (Babahoyo, Ecuador). 

 Amazilia rieferi Simon & Dalm., Ornis, XI, 1901, p. 221 (Naranjo). 

 AmaziKa tzacatl jucunda Hellm., P. Z. S., Wll, p. 1183 (R. Sipi; Noanamd; 

 N6vita). 



Tropical Zone of western Ecuador northward to the San Juan river in 

 Colombia. Western Ecuador specimens average larger; the males have the 

 abdomen tinged with rusty; females have this region paler than in tzacatl. 

 I can detect no diagnostic differences in the color of the upper mandible. 

 On the whole the Colombian birds are intergrades between tzacatl and 

 jucunda and, as stated above, it is purely a matter of opinion where the line 

 bounding the ranges of the two forms be drawn. 



Juntas de Tamana, 1; Noanama, 1; San Jose, 1; Los Cisneros, 1; Las 

 Lomitas, 1; Tumaco, 4; Barbacoas, 3. 



(1119) Hylocharis grayi {Delatt. & Bourc). 



Eucephala grayi Simon & Dalm., Ornis, XI, 1901, p. 219 (Espinal de Dagua; 

 Naranjo; El Carmen; La Tigra; Las duces). 



Trochilus grayi Delatt. & Bourc, Rev. Zool., 1846, p. 307 (Popayan). 

 Hylochans grayi Obebh., Proc. U. S. N. M., XXIV, 1902, p. 317 (Patia Valley). 



Found in open and arid or semi-arid places at Caldas, in the Cauca 

 Valley up to the borders of forest, and southward through the Patia Valley 

 to northern Ecuador. It is apparently an arid-zone representative of H. 

 humboldti which inhabits the humid coastal region. 



Caldas, 1; San Antonio, 18; Cah, 2; Miraflores, 2; Popayan, 3; La 

 Sierra, 1. 



(1120) Hylocharis humboldti {Bourc. & Mvls.). 



■ Trochilus humboldti Boubc. & Muls., Ann. Soo. Agric. Lyon, Ser. 2, IV, p. 142 

 (Esmeraldas, Ecuador). 



Eucephala humboldti Simon & Dalm., Ornis, XI, 1901, p. 219 (Buenaventura). 



Found in the Tropical Zone of the Pacific coast from at least Buena- 

 ventura southward. Females differ from those of H. grayi chiefly in having 

 the throat white, unspotted, the tail green. 



Buenaventura, 2; Tumaco, 3. 



