136 On Birds collected in Argentina , Paraguay , fyc. 
c. ad. 10 miles above Villa Pilar, Paraguay. Aug. 7, 
1909. 
d. ? ad. 10 miles below Boca de Homiguera, Brazil. 
Oct. 12, 1909. 
e. d ad. Curuzu Chica, Paraguay. Oct. 29, 1909. 
/. ad. Near Goya, N. Argentine. Nov. 13, 1909. 
$ . Irides red; bill slate-coloured, black at tip ; legs and 
toes slate-coloured. 
$ . Irides deep rich orange; bill, legs, and toes slate- 
coloured. 
Commonly observed, frequenting the low scrub anc 1 
undergrowth in the forests and the edges of the swamps. 
132. Thamnophilus c^rulescens. 
Thamnopkilus ccerulescens Scl. Cat. B. xv. p. 200; Arg. 
Orn. i. p. 204. 
a. d ad. Arjerichi, Paraguay. Aug. 9, 1909. 
Irides hazel; bill, upper mandible black, lower slaty; 
legs and toes slaty. 
Call a loud and clear “ qua qua.” 
133. Thamnophilus radiatus. 
Thamnophilus radiatus Scl. Cat. B. xv. p. 210; Chubb, 
Ibis, 1910, p. 520 (Paraguay). 
a, b. <$ $ ad. Boca de Homiguera, Brazil. Oct. 9, 1909. 
c . d ad. Cabo Emma, Paraguay. Oct. 20, 1909. 
S ? . Irides yellow; bill, legs, and toes blue-slaty, 
culmen black. 
134. Formicivora rufa. 
Formicivora rufatra Scl. Cat. B. xv. p. 250. 
Formicivora rufa Allen, Bull. Amer. Mus. ii. p. 253 (1889); 
Sharpe, Hand-1. B. iii. p. 25. 
a. $ ad. Albuquerque, Brazil. Oct. 1, 1909, 
Irides hazel; bill, legs, and toes blue-slaty. 
135. Cercomacra melanaria. 
Cercomacra melanaria Scl. Cat. B. xv. p. 268. 
<*,b. £ ? imm. & ad. Albuquerque, Brazil, Oct. 1,1909. 
