1920 J Cory, New Species and Subspecies of Tyrannidce. 109 



Remarks. — I have dedicated this new form to Mr. Robert H. 

 Becker who collected the type specimen. 



Euscarthmus impiger cearse subsp. nov. 



Type from Jua, near Iguatu, Ceara, N. E. Brazil. Adult female, No. 

 50,834, Field Museum of Natural History. Collected by R. H. Becker, 

 August 20, 1913. 



Description. — Allied to E. impiger impiger Sclater & Salvin and E. i. 

 inornatus (Pelzeln), but nearer the latter. This form agrees very well 

 with the description of inornatus (a form which I have not seen) as given 

 by Pelzeln, except that Pelzeln describes the abdomen as "flaviscente 

 indutis," whereas in ceraroz the abdomen is pure white. It is probable 

 that on account of the very different environment of the two forms cearm 

 will show other differences in coloration. From impiger impiger the present 

 form differs in having the upper parts dark grayish olive (not brownish), 

 crown slightly darker than back; wing bands white; under parts more 

 whitish; abdomen and under tail coverts much purer white, and wing 

 shorter. 



Measurements. — Wing, 43; tail, 37; tarsus, 19; exposed culmen, 12 mm. 



Remarks. — It should be noted that all of the specimens I have 

 seen from Venezuela (including two from Caracas) and which I 

 assume are typical impiger impiger have the ends of the wing 

 coverts (forming the wing bands) practically white, the yellowish 

 tinge mentioned by Sclater being very faint and hardly noticeable. 

 None of the specimens have the wing bands distinctly yellowish 

 white and not at all tawny buff as shown in the original plate or 

 in the plate given in the 'Catalogue of Birds of the British Museum.' 

 Field Museum Nat. Hist., Chicago. 



