( $15 ) 
[153. Attila brasiliensis brasiliensis Less. 
Attila brasiliensis Lesson, Traité d’Orn. livr. 5, p. 360 (end of 1830,—“ Brésil,” errore! the type is 
from Cayenne ; cf. Pucheran, Arch. Mus. Paris vii. 1855. p. 366); Hellmayr, Nov. Zool. xiii. 
1906. pp. 328-30 (crit.). 
Dasycephala uropygialis Cabanis in Schomburgk, Reisen in Brit. Guiana iii, p. 686 (1848,—British 
Guiana), 
Attila uropygialis Pelzeln, Zur Orn. Bras. ii. p. 96 (Salto do Girao). 
Left bank of Madeira: Salto do Girao (Natterer). 
The specimen obtained by Natterer is perfectly similar to russet-backed examples 
from Brit. Guiana and the Caura Valley. Lately I have been enabled to examine 
Cabanis’ type of D. uropygialis (ef. Lc. p. 328), and found it to be a young bird 
of the present species, with the back dull russet-brown, large rufescent margins to 
the wing-coverts, etc. } 
(154. Attila spadiceus rufigularis Pelz. 
Muscicapa spadicea Gmelin, Syst. Nat. 1. ii. p. 937 (1788.—based on “ Yellow-rumped Flycatcher,” 
Latham, Gen. Syn. Birds 2. i. p. 354: Cayenne). | 
Attila rufigularis Pelzeln, Zur Orn. Bras. ii. pp. 96, 170 (1868.—Salto do Girao). 
Left bank : Salto do Girao (Natterer). 
The type, an immature bird, is still the only known specimen. It is most 
closely related to A. s. spadiceus, but the throat and sides of the head are of a 
much clearer and brighter ferruginous (without any brownish admixture), the 
axillaries and under wing-coverts lighter ochraceous, and the middle of the 
abdomen is more extensively white. A good series from the Rio Madeira is 
required to establish the claims of this form to recognition. 
Moreover, I must confess that I have strong doubts about A. brasiliensis and 
A. spadiceus being specifically distinct, and should not be surprised if they should 
turn out to be merely phases of the same form !] 
[155. Attila thamnophiloides (Spix). 
Muscicapa thamnophiloides Spix, Av. Bras, ii. p. 19, pl. xxvi. fig. 2 (1825.—‘“in locis sylvaticis 
fl. Amazonum”), : ; 
Attila thamnophiloides Pelzeln, l.c. p. 95 (Borba) ; Hellmayr, Nov. Zool. xiv. 1907. p. 364 (Borba). 
Right bank: Borba (Natterer, Hoffmanns). | 
[156. Attila bolivianus nattereri Hellm. 
Attila nattereri Hellmayr, Verhandl. Zool. Bot. Gesellsch. Wien lii. p. 95 (1902.—Borba, Rio 
Madeira). 
A, bolivianus (nec Lafresnaye) Pelzeln, I.c. p. 96 (Borba, Para). 
Right bank: Borba (Natterer). Not obtained by Mr. Hoffmanns. 
A, b. nattereri differs from A. 4. bolivianus by its considerably darker coloration 
and smaller size. The distinguishing characters are fully given /.c.: cf. also my 
remarks in Nov. Zool. xiii. 1906. p. 330. Miss Snethlage has lately sent, for 
my inspection, two males taken at Monte Alegre, Lower Amazons, which agree 
perfectly with the types in the Vienna Museum. The range of the two races 
is as follows :— 
