Birds of Paraguay. 591 
in the low trees bordering the small streams flowing through 
the open camp-lands. It feeds generally upon the insects 
flying over the water.— W. F.] 
149. Empidonax bimaculatus. 
Muscipeta bimaculata d ; Orb. et Lafr. Syn. Av., Mag. de 
Zooi. 1837, p. 48 (Yungas, Bolivia). 
Empidonax bimaculatus Berlepsch, J. f. O. 1887, p. 118 
(Paraguay); Sclater, Cat. B. Brit. Mus. xiv. p. 224 ; Ihering, 
B,evista Mus. Paulista, vi. p. 326 (Paraguay). 
Empidochanes fuseatus bimaculatus Berlepsch & Hellmayr, 
J. f. O. 1905, p. 22; Berlepsch, Proc. 4th Intern. Orn. 
Congr., 1 Ornis/ xiv. p. 480 (1907). 
a. ? ad. Sapucay, November 21, 1902. 
b. Imm. ,, March 29, 1903. 
c. S ad. Ybitimi, February 7, 1904. 
d-i. <$ ad. Sapucay, August 6-30, 1904. 
k-n. S ? ad. » September 2-12, 1904. 
The young bird differs from the adult in being pale rufous 
brown above instead of olive-brown; the head and sides of 
the face are cinnamon-rufous, somewhat paler on the latter; 
the throat and chest similar in colour washed with yellow, the 
remainder of the under surface is yellowish; the wing-coverts, 
inner secondaries, and tail-feathers are broadly margined 
with rufous instead of buff as in the adult. 
[This species is resident and not uncommon in the wooded 
districts of Central Paraguay. A lover of the gloomy thickets 
of the forest, it is never met with in the open parts, but 
seems to delight in the tangled undergrowth and low- 
growing trees, undoubtedly finding this a profitable hunting- 
ground.— W. F.~\ 
150. Empidonax euleri. 
Empidochanes euleri Cab. J. f. O. 1868, p. 195 (Canta- 
galla, Rio Janeiro) ; Berlepsch & Hellmayr, J. f. O. 1905, 
pp. 21, 22 ; Berlepsch, Proc. 4th Intern. Orn. Congr., 
f Ornis,’ xiv. p. 480 (1907). 
Empidonax bimaculatus Sclater, Cat. B. Brit. Mus. xiv, 
p. 224, part. 
