BIRD LIFE IN THE URUBAMBA VAULEY OF PERU. 97 



(3041) MYIOBIUS FASCIATUS SATURATUS Berlepsch and Stolzmann. 



MyioUus naevius saturahis Berlepsch and Stolzmann, Ornis, 1906, p. 88 



(Chirimoto; Santa Ana, Peru). 

 MyioUus naevius Sclater and Salvin, Proc. Zool. Soc, 1876, p. 16 (Potrero). 



Common in the Tropical Zone, ranp;ing upward to the lower border 

 of the Subtropical. Some of the specimens listed below can be 

 matched by others from Colombia. 



Santa Ana, 7; San Miguel Bridge, 3. 



(3055) MYIOBIUS GCHRACEIVENTER (Cabanls). 



Mitrephanes ochraceiventer Cabanis, Journ. fiir Omith., 1873, p. 320 (Tilotilo, 



Bolhda). 

 MyioUus subochraceus Sclater, Proc. Zool. Soc, 1887, p. 50 (Tilotilo, Bolivia). 



Identified from descriptions. As Sclater remarked, the generic 

 affinities of this species appear to be with Myiohms pulcJier. It is 

 certainly not referable to Mitrephanes. The adult male has an 

 orange-flame crest as in M. flavicans and M. pulcher. 



Idma (9,000 feet), 1 male adult. 



(3052) EMPIDOCHANES POECILURUS PERUANUS Berlepsch and Stolimann. 



Empidochanes poecilurus peruanv^ Berlepsch and Stolzmann, Proc. Zool. Soc, 

 1896, p. 366 (Garita del Sol, Peru). 



On comparison with Colombian specimens, a female exhibits the 

 characters ascribed to this race. 

 San Miguel Bridge, 1. 



(3056) MITKEPHANES OLIVACEUS Berlepsch and Stolzmann. 



Mitrephanes olivaceus Berlepsch and Stolzmann, Ibis, 1894, p. 391 (Garita del 

 Sol, Peru). 



Found in the Subtropical Zone. I have no specimens for compari- 

 son, but the species is said to range from central Peru to Bolivia, 

 and Idma is within the heart of this region. 



Idma, 2. 



(3058) SAYORNIS NIGRICANS LATIROSTRIS (Cabanis and Heine). 



Aulanax latirostris Cabanis and Heine, Mus. Hein., vol. 2, 1859, p. 68 (Bolivia). 

 Sayornis nigricans cineracea Authors (not Lafresnaye). See Bangs and Penard, 



Bull. Mus. Comp. Zool., 1919, p. 28. 

 Sayornis cineracea angustirostris Berlepsch and Taczanowski, Proc. Zool. Soc, 



1896, p. 357 (La Merced, Peru); Ornis, 1906, p. 85 (Santa Ana). 



In specimens from Colombia and Venezuela, the wing and tail 

 average shorter, the bill larger than in those from Peru and Bolivia ; 

 but I can detect no diagnostic difference in color which would sepa- 

 rate northern from southern birds, and consequently would apply 

 the name given to the Bolivian bird to all South American specimens 

 of Sayornis nigricans. 



San Miguel Bridge, 4. 

 2787—21 7 



