521 
Birds of Paraguay. 
82. Dysithamnus mentalis. 
Myothera mentalis Temm. PI. Col. ii. pi. 179. fig. 3 (1823 : 
Brazil). 
Dysithamnus 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 ? inmi. Sapucay, November 20, 29, 1902. 
d. $ ad. Sapucay, April 1903. 
Bill black above, dark slaty below ; feet yellowish grey ; 
iris brown. 
e. $ imm. Sapucay, May 4, 1903. 
fig. $ $ imm. Sapucay, March 9, 31, 1904. 
h, i , k. £; l, m. $ ad. Sapucay, April 9-30, 1904. 
n, o. $ ? ad. Sapucay, May 1, 5, 1904. 
Mr. Bertoni has described this species as a new form under 
the name of Thamnophilus flavescens. This large series, 
however, agrees with TemminclCs 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 rufimarginatus. 
Myothera rufimarginatus Temm. PI. Col. ii. pi. 132. fig. 1 
(1823 : Brazil); Richmond, Proc.U.S. Nat. Mus. xxxv. p. 605 
(1908). 
Herpsilochmus rufimarginatus Sclater, Cat. B. Brit. Mus. 
xv. p. 247; Ihering, Revista Mus. Paulista, vi. p. 330 
(Paraguay). 
Dendrooecia erythroptera Bertoni, Aves Nuev. Paraguay, 
p. 138. 
