122 BULLETIN 111, UNITED STATES NATIONAL MUSEUM. 



(4387) THLYPOPSIS RUFICEPS (d'Orbigny and Lafresnaye). 



Sylvia ruficeps d'ORBioNY and Lafresnaye, Syn. Av., pt. 1, 1837, p. 30 (Yura- 



cares, Bolivia). 

 Thlypopsis ruficeps Berlepsch and Stolzmann, Ornis, 1906, p. 82 (Idma). 



Our specimens agree with a topotypical series. 



Idma, 1; San Miguel Bridge, 3; Torontoy, 6; Galea, 1. 



(4397) CHLOROSPINGUS FLAVIGULARIS FLAVIGULARIS (Sclater). 



Pipilopsis fiavigularis Sclater, Rev. Zool., 1852, p. 8 (New Grenada). 



Chlorospingus fiavigularis parvirostris Chapman, Bull. Amer. Mus. Nat. Hist., 

 vol. 14, 1901, p. 227 (Inca Mine=Santo Domingo, southeastern Peru). — Ber- 

 lepsch and Stolzmann, Ornis, 1906, p. 82 (Idma). 



The acquisition of additional topotypical material of both fiavi- 

 gularis and "parvirostris" shows that the latter form is based on an 

 average difference quite lost by individual variation. It is not in 

 my opinion worthy of recognition. Inhabits the Subtropical Zone. 



Idma, 5; San Miguel Bridge, 4. 



(4404) HEMISPINGUS ATROPILEUS AURICULARIS (Cabanis). 



Chlorospingus auricularis Cabanis, Journ. fiir Ornith., 1873, p. 318 (Maraynioc, 

 Peru). 



The difference between the northern and southern forms of this 

 species appears to be subspecific. Inhabits the humid Temperate 

 Zone. 



Occobamba Valley, 2. 



(4409) HEMISPINGUS SUPERCILIARIS NIGRIFRONS (Lawrence). 



Chlorospingus nigrifrons Lawrence, Ibis, 1875, p. 384 (Ecuador). 



Inhabits the humid Temperate Zone. Our specimens agree with 

 several from southern Colombia. 



Occobamba Valley, 2 (1, July 29, breeding); above Torontoy 

 (9,500 feet), 1 (May 4, breeding). 



(4412) HEMISPINGUS FRONTALIS FRONTALIS (Tschudi). 



Hylophihis frontalis Tschudi, Wiegm. Arch., 1844, vol. 1, p. 284 (Peru). 

 Chlorospingus frontalis Berlepsch and Stolzmann, Ornis, 1906, p. 83 (Santa 

 Ana). 



Inhabits the Subtropical Zone. I am unable to separate the 

 Colombian from the Peruvian birds. H.f. oleagineus should, there- 

 fore, in my present opinion, be synonymized with frontalis.^^ 



San Miguel Bridge, 6. 



(4421) PSEUDOSPINGUS XANTHOPHTHALMUS (Taczanowski). 



Dacnis xanthophthalma Taczanowski, Proc. Zool. Soc, 1874, p. 510 (Maraynioc, 

 Peru). 



Heller secured a male of this rare species heretofore known only 

 from two males and three females from Maraynioc and a female 



»s See Bull. Amer. Mus. Nat. Hist., vol. 36, 1917, p. 621. 



