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



Of p. browni I have only one immature female (?), but comparison with 

 the type and three female topotypes of the species has been made for me by 

 Mr. Thomas Barbour. 



Our single specimen of browni (Onaca, Santa Marta) in the general color 

 of the upperparts, wings and tail is much nearer our one specimen of citrina 

 than either is to antioquioe. The specimen of citrina is from Mt. Roraima, 

 whence Sharpe (Cat. Bds. B. M. XII, p. 779) records additional specimens. 



Brabourne & Chubb, however, (Bds. S. A., I, p. 381) include Guiana in 

 the range of browni and restrict citrina to Brazil. I am not aware on what 

 ground this view is based and in the absence of Brazilian specimens of 

 citrina and a larger number of specimens from Guiana I am unable to con- 

 firm or disprove it. 



Barro Blanco, 5. 



(3925a) Phrygilus unicolor grandis Chapm. 



Phrygilus unicolor grandis Chapm., Bull. A. M. N. H., Vol. XXXIV, 1915, p. 651 

 (Santa Isabel, 12500 ft., Cen. Andes, Colombia). 



Char, subsp. — Larger and with a longer, heavier bUl than any known race of the 

 species; male paler, particularly on the underparts, which have a whitish cast, than 

 the male of P. u. unicolor, which is nearly the same color below as above; female with 

 the auricular region usually grayish or tinted with buffy instead of dark oUve-buff as 

 in P. u. geospizopsis; not certainly distinguishable in color from the much smaller 

 P. u. nivarius (Bangs). 



Inhabits the Paramo zone of the Central Andes of Colombia southward 

 at least to Chimborazo, Ecuador. 



Santa Isabel, 8 cfads., 3 9 ads., 2 9im. 



(39266) Phrygilus unicolor geospizopsis (Bonap.). 



Passerculus geospizopsis Bonap., Compt. Rend., XXXVII, 1853, p. 291 (Colom- 

 bia = 'Bogota' cf. ScLATBR, P. Z. S., 1855, p. 160). 



Phrygilus unicolor Wtatt, Ibis, 1871, p. 328 (Vetas; 10,000-11,000 ft.). 



Char, suhsp. — Distinguished from P. «,. grandis by its smaller size, from P. u. 

 nivarius by its larger size; from both grandis and unicolor by its oUve-bulf, instead of 

 grayish or buffy auricular region and by the suffusion of olive-buff on the chin and 

 throat, in the female. 



Thanks to the kind offices of Brother Apolinar Maria, I am in possession 

 of nine topotypical specimens of this currently unrecognized race, from the 

 Paramo of Choachi near Bogota. Of six adult females taken in October and 

 November, and in partly worn plumage, all but one have the auricular 

 region and throat markedly buffy-olive, a character which appears to dis- 



