Birds of Paraguay. 521 



82. Dysithamnus mentalis. 



Myothera mentalis Temm. PI. Col. ii. pi. 171). fig. 3 (1823 : 

 Brazil). 



D'jsithamnus mentalis Sclater, Cat. B. Brit. Mus. xv. p. 221 

 (1890) ; Allen, Bull. Amer. Mus. v. p. 118 (1893: Matto 

 Grosso); Salvad. Boll. Mus. Torino, xv. n. 378, p. 18 (1900: 

 Paraguay) ; Ihering, Revista Mus. Paulista, vi. p. 330 (Para- 

 guay). 



Thamnophilus flavescens Bertoni, Aves Nuev. Paraguay, 

 p. 136. 



a. <$ ad. Sapucay, October 28, 1902. 



b, c. S ? imm. Sapucay, November 2;), 29, 1902. 

 (I. J ad. Sapucay, April 1903. 



Bill black above, dark slaty below ; feet yellowish grey ; 

 iris brown. 



e. ? imm. Sapucay, May 4, 1903. 



/, g. J ? imm. Sapucay, March 9, 31, 1904. 



//, i, k. <$ ; I, m. ? ad. Sapucay, April 9-30, 1904. 



n, u. $ 2 ad. Sapucay, May 1, o, 1901. 



Mr. Bertoni has described this species as a new form under 

 the name of Thamnophilus jlavescens. This large series, 

 however, agrees with Temminck's description and plate of 

 D. mentalis, and also with the series in the collection of 

 the British Museum. I agree, therefore, with Dr. Ihering 

 in placing Thamnophilus flavescens of Bertoni as a synonym 

 of the present species. 



[This species, like the last, is very abundant through the 

 whole of Central and Southern Paraguay. — W. F.~\ 



83. Herpsilochmus rufi.marginatus. 



Myothera rii-fimarginatus Temm. PI. Col. ii. pi. 132. fig. 1 

 (1823 : Brazil); Richmond, Proc.U.S. Nat. Mus. xxxv. p. 605 

 (1908). 



Herpsilochmus rujimarginatus Sclater, Cat. B. Brit. Mus. 

 xv. p. 247 ; Ihering, Revista Mus. Paulista, vi. p. 330 

 (Paraguay). 



Dendrocecia erythroptera Bertoni, Aves Nuev. Paraguay, 

 p. 138. 



