BANGS AND PENARD: SURINAM BIRDS. 83 



255. Stelgidopteryx ruficollis cacabatus, subsp. nov. 



Type.— M. C. Z. 80,924 (1,348 Penard Coll.). Adult d". Vicin- 

 ity of Paramaribo, Surinam, 19 June, 1913. E. Graanoogst. 



Seven specimens, both sexes, all from Vicinity of Paramaribo, 

 April, May, and June. 



Characters. — Similar to S. r. ruficollis (Vieillot) but the whole upper 

 parts including wings and tail much darker, more blackish, less brown- 

 ish; size, slightly smaller. Differs from S. r; uropygialis (Lawr.) 

 in having the rump not conspicuously paler than the back, but the 

 upper parts of about the same color. 



Remarks. — Ridgway (Birds of North and Middle America, 1904, 

 3, p. 58, 64) has already called attention to the difference between the 

 Guiana and Colombian birds. Hellmayr (Nov. zool., 1906, 13, p. 13) 

 gives a brief review of the South American forms of -S. ruficollis, but 

 appears to have had no birds from Surinam. Brabourne & Chubb 

 (The birds of South America, 1912, 1, p. 328) do not include Surinam 

 in the geographical distribution of any form of S. ruficollis. Berlepsch 

 (Nov. zool., 190S, 15, p. 110) lists S^ ruficollis (Vieill.) from Cayenne, 

 but he had no specimens and refers only to Cayenne skins of the 

 Sclater collection in the British Museum. F. P. and A. P. Penard 

 (De vogels van Guyana, 1910, 2, p. 506) refer the Surinam bird to 

 S. r. aequalis Bangs, which it certainly is not, the latter ranging only 

 as far south as British Guiana. 



Mniotiltidae. 

 256. Dendroeca aestiva aestiva (Gmelin). 

 Three specimens, Vicinity of Paramaribo, January, and December. 



