BIRD LIFE IN THE URUBAMBA VALLEY OF PERU. 123 



from Tamiapampa (altitude, 9,000 feet). The bird agrees with 

 descriptions.^* 



Occobamba Valley, 9,100 feet, 1. 



(4423) MICKOSPINGUS TRIFASCIATUS Taczanowski. 



Microspingm trifasciatus Taczanowski, Proc. Zool. Soc, 1874, p. 132, pi. 19, 

 fig. 1 (Maraynioc, Peru). 



Heller secured this uncommon species at timber line in the humid 

 Temperate Zone. 

 Cedrobamba, 3. 



(4437a) SCHISTOCHLAMYS ATRA OLIVINA (Sclater). 



Tanagra olivina [female] Sclater, Proc. Zool. Soc, 1864, p. 607 (Cuyaba, Brazil) — 



Sclater and Salvin, Proc. Zool. Soc, 1876, p. 16 (Maranura). 

 ISchistochlamys atra grisea Cory, Field Mus. Pub. 190, 1916, p. 346 (Rioja, Peru). 

 Orchesticus ater [male] Sclater and Salvin, Proc Zool. Soc, 1876, p. 16 (Huiro), 

 Schistochlamys atra Berlepsch and Stolzmann, Ornis, 1906, p. 83 (Idma). 



Inhabits the Tropical Zone. A large series from Matto Grosso 

 averages slightl}^ darker, especially below, than specimens from 

 Cayenne and northeastern Venezuela (which may be considered 

 typically to represent a ^ra), but the black throat areas are not so 

 intense and the black of the forehead grades insensibly into the gray 

 of the crown or hind head and is not therefore sharply defined from 

 it as it is in our specimens of true atra. Our Peruvian specimens 

 average slightly darker in general coloration than those from Matto 

 Grosso, but agree with them in the color of the black frontal areas 

 and gradual change from black to gray on the crown. They should 

 therefore unquestionably be referred to the southern rather than the 

 northern form of this species and it seems probable that S. a. grisea 

 Cory should also be placed here. 



Santa Ana, 2; Idma, 2 (Oct. 20, breeding). 



Family ICTERIDAE. 



ORIOLES, CASSIQUES, Etc. 



(4J45a) OSTINOPS DECUMANUS MACULOSUS Chapman. 



Ostinops decumanus maculosus Chapman, Proc. Biol. Soc Wash., vol. 33, July 



24, 1920, p. 26. 

 Ostinops decumanus Berlepsch and Stolzmann, Ornis, 1906, p. 84 (Pampa de 



Derrumbe; Santa A^ia). 



Rio Cosireni, 1; Chauillay, 1. 



(4447) OSTINOPS ATROVIRENS (d'Orbigny and Lafresnaye). 



Cassicus atrovirens d'ORBiONY and Lafresnaye, Sjtq. Av., pt. 2, 1838, p. 1 



(Yungaseni, Bolivia). 

 Ostinops atrovirens Sclater and Salvin, Proc. Zool. Soc, 187G, p. 16 (Huiro).— 



Berlepsch and Stolzmann, Ornis, 1906, p. 85 (Idma). 



Locally common in the Subtropical Zone. 

 Idma, 5; San Miguel Bridge, 3. 



w See Berlepsch and Taczanowski, Proc. Zool. Soc, 1896, p. 346. 



