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



Rhoads at CMmbo, Ecuador, near Riobamba, and hence essentially topo- 

 typical, has the flanks barred and thus agrees with Sclater's description 

 (P. Z. S., 1858, pi. 550). None of my twenty-five Colombian specimens is 

 thus marked, and only one, a female from Valle de las Pappas, has the 

 breast as heavily washed. 



Munchique, 2; Laguneta, 6; Santa Isabel, 4; El Eden, 1; Rio Toche, 

 1; Almaguer, 4; Valle de las Pappas, 2; La Palma, 1; El Roble, 2; El 

 Pifion. 2. 



(3455) Henicorhina leucosticta (Cab.). 



Cyphorhinus leiicostictus Cab., Arch, fur Naturg., XII, 1847, p. 206 (Guiana). 



I am unable to find in our collections the Panama R. R. specimen from 

 the Lawrence collection which Baird (Rev. Am. Bds., p. 117) referred to 

 this species, but our more recent collections show that it at least reaches 

 eastern Panama, where Anthony, Ball and Richardson secured nine speci- 

 mens at Tacarcuna and Tapaliza. From the eastern side of the Atrato 

 Miller and Boyle also took a small series of seven specimens, and our explo- 

 rations thus materially extend the definitely known range of this species. 



Four specimens from La Morelia and four from Florencia agree closely 

 with thirteen from the Essequibo River, British Guiana, which may be 

 considered as typically representing this species, but have, as a rule, no 

 black on the malar region, whereas in Guiana specimens the black not infre- 

 quently encroaches on the side of the throat. In specimens from northwest 

 Colombia and eastern Panama the malar region is still more frequently 

 streaked and the inner wing-quills are more distinctly barred than in Guiana 

 or southeast Colombia birds; but these differences are too inconstant to be 

 of racial value. 



All the adults in our large series have the crown and nape black with 

 occasionally a trace of the color of the back. A specimen in juvenal plumage 

 from La Morelia has the entire crown the color of the back but in a juvenal 

 specimen from Tapaliza it is black lightly tinged with brownish. 



While we have yet to find leucosticta and prostheleuca at the same place, 

 the indications are that these birds do not intergrade. 



Alto Boriito, 6; Dabeiba, 1; La Morelia, 4; Florencia, 4. 



(3455a) Henicorhina prostheleuca eucharis Bangs. 



Henicorhina leucosticta eucharis Bangs, Proc. Biol. Soo. Wash., XXIII, 1910, p. 

 74 (Pavas, w. Col.). 



Apparently confined to the lower part of the Subtropical Zone and upper 

 border of the Tropical Zone of the Pacific slope of the Western Andes. It 



