96 Proceedings of the Biological Society of Washington. 



Type, No. 41,927, Collection Carnegie Museum, adult male; LaTigrera, 

 Santa Marta, Colombia, May 8, 19115; M. A. Carriker, Jr. 



Myiarchus sordidus sp. nov. 



Nearest apparently to Myiarchus fortirostris Todd, but size smaller, 

 upper parts very much darker (dark olive), under parts slightly darker, 

 and bill more flattened. Very distinct also from any of the forms of 

 Myiarchus ferox (Gmelin), being much paler and dingier below. Wing 

 (type), 89; tail, 83; exposed culmen, 16. 



Type, No. 46,377, Collection Carnegie Museum, adult female; El Trom- 

 pillo, Carabobo, Venezuela, April 27, 1914; Samuel M. Klages. 



Empidonomus varius septentrionalis subsp. nov. 



Similar to Empidonomus varius varius (Vieillot) of southern Brazil, 

 Paraguay, and Bolivia, but darker above, more brownish, less olivaceous, 

 and much more heavily streaked below. Still more different in this 

 latter respect from Empidonomus varius rafinus (Spix) of northern and 

 eastern Brazil and Guiana. 



Type, No. 47,027, Collection Carnegie Museum, adult male; El Trom- 

 pillo, Carabobo, Venezuela. May 16, 1914; Samuel M. Klages. 



Idiotriccus secundus sp. nov. 



Pileum yellowish olive, with narrow front and superciliaries dull whitish, 

 becoming yellowish posteriorly; back warbler green, and rectrices with 

 narrow external margins of the same color; indistinct inner margins of 

 rectrices yellowish white; wings dusky, with narrow external margins of 

 dull greenish, becoming citron yellow on the innermost; inner webs of 

 remiges broadly pale yellowish white; middle and greater wing-coverts 

 tipped with citron yellow, forming two bands across the wing; lores 

 dusky; throat dull whitish, passing into olive yellow on the breast and 

 sides, and this into barium yellow on the abdomen and under tail-coverts. 

 Wing (type), 64; tail, 49; exposed culmen, 8.5; tarsus, 16. 



Type, No. 43,788, Collection Carnegie Museum, adult female; Rio 

 Surutu, Provence del Sara, Bolivia, September 6, 1910; Jose Steinbach. 



Attila idiotes sp. nov. 



Similar in general to Attila citreopygus citreopygus (Bonaparte), but 

 pileum and sides of head brighter green ; back paler brown ; chin, throat, 

 and breast strongly washed with pale lemon yellow; and bill smaller 

 (exposed culmen, 20 mm.). 



Type, No. 49,727, Collection Carnegie Museum, adult male; Fundacion, 

 Santa Marta, Colombia, October 19, 1915; M. A. Carriker, Jr. 



Tityra setnifasciata heteromeltena subsp. nov. 



Differs from all the other known races of this species in having the 

 black of the crown extending far behind the eyes, to a point even with 



