322 Bulletin American Museum of Natural History. [Vol. XXXVI, 



bird while it does apply to the bird from the eastern slope. The latter is 

 distinguished chiefly by the comparative blackness of all but the central 

 tail-feathers, seen from below, a character which at once separates it from 

 the other Colombian forms. Moreover, compared with specimens from 

 west of Bogota (which in the color of the upperparts agree with true Colum- 

 biana) mesura as, Cabanis states, has the upperparts "wenig lebhafter als 

 bei C. (= P.) cohmbianus." 



A specimen from La Palma, in the Central Andes at the head of the 

 Magdalena Valley, has the tail longer than in Buena Vista and Quetame 

 specimens, but, in color, I can detect no differences between two specimens 

 from this locality, two from Andalucia (w. slope E. Andes, 3000 ft.) and 

 others from the eastern slope of the Eastern Andes. In view of the fact 

 that this species ranges upward to the Subtropical Zone, it is not improbable 

 that this race has entered the upper Magdalena region over the Andalucia 

 pass of the Eastern Andes," the altitude of which is only 7000 feet. 



La Palma, 2; Andalucia (w. slope, 3000 ft.), 2; Quetame, 3; Buena 

 Vista, 2; Barrigon, 2. 



(1490) Piaya rutila rutila (III.). 

 Cuadus rutilus III., Abh. Berl. Ak. Wiss., 1812, p. 224 (Cayenne). 



Two specimens from Villavicencio are somewhat darker and have the 

 belly grayer than one from Cayenne but agree essentially with several from 

 Trinidad. 



Villavicencio, 2. 



(1490o) Piaya rutila gracilis (Heine). 



Coccyzusa gracilis Heine, J. f. O., 1863, p. 356 (Esmeraldas). 

 Piaya minuta ScL. & Salv., P. Z. S., 1879, p. 537 (Medellin). 



Eight specimens from the Cauca Valley and two from the Magdalena 

 Valley agree with a series from western Ecuador including six from Esmeral- 

 das. This form may be distinguished from true rutila and from P. r. pana- 

 mensis Todd^ by its paler colors, particularly below, and by the greater 

 restriction of the rufous breast-area. 



Call, 6; La Manuelita, 1 ; Rio Frio, 1; Malena, 2. 



' Piaya rutila panamemis Todd,' Ann. Carnegie Mus., VIII, No. 2, 1912, p. 212. 



