( 372 ) 



These skins agree perfectly with the typical series from Teffe. Both specimens 

 have the under wing-coverts and a distinct edge along the inner web of the 

 primaries white. There is no trace of a white interscapular hlotch. 



No. 1053 has a few minute whitish apical dots on the median and greater 

 upper wing-coverts. 



T. c. persimilis apparently ranges all over Western Brazil from the Rio 

 Madeira to the south bank of the main valley of the Amazons. The bird obtained 

 on the Jurna and mentioned by Ihering s. n. T. caesius is also referable to the 

 present form. 



83. Myrmelastes luctuosus (Lcht.). 



Cf. supra, p. 17. 



Thamnophilus luctuosus Pelzeln, Zur Ornith. Bras. ii. 1868. p. 7lj (Borba). 



Nos. 1139, 1140. c? ? ad., slightly moulting, Humaytha, 22. viii. 00. "Iris 

 brown, feet plumbeous, bill black." — Wing 80, 78 ; bill 21 mm. 

 Identical with specimens from Para and .Santarem. 



84. Cercomacra nigrescens approximans Pelz. 



Cf. supra, p. 18. 



Nos. 1338, 1450. <?c? ad., Borba, 16. xi., 7. xii. 06. "Iris brown, feet 

 plumbeous, bill black."— Wing 67, 66 ; tail 63, 59 ; bill 18 mm. 



No. 1354. (<?) juv.j Borba, 17. xi. 06. "Iris grey, feet pale plumbeous, bill 

 black." 



The adult males agree fully with those from Santarem and Central Peru in 

 the Tring Museum. 



85. Formicivora rufa (Wied). 



Myioihera rufa Wied, Beitr. Notary. Bras. 3. ii. p. 1095 (1831.— Interior of Bahia). 



Nos. 1237, 1257. Si ad., Humaytha, 14, 17. ix. 06. " Iris dark brown, feet 

 and bill black."— Wing 54, 51 ; tail 57, 53 ; bill 15, 14| mm. 



No. 1285. c? vix ad., Humaytha, 22. ix. 06. " Iris brown, feet blackish grey, 

 bill black." 



No. 1238. <S jnv., Humaytha, 14. ix. 06. " Iris dark brown." 



No. 1236. ? ad., Humaytha, 14. ix. 06. "Iris brown, feet blackish grey, bill 

 black."— Wing 51 ; tail 53 ; bill 14 mm. 



No. 1260. S jnv., Humaytha, 17. ix. 06. "Iris brown, feet bluish black, 

 bill black." 



According to Mr. Hoffmanns' observations this species never occurs in the 

 " vargem " or on the "terra firms," but lives exclusively in the campos, where 

 also the six above specimens were shot. They agree with a female from Itapura, 

 Rio Tiete, state of S. Paulo, in having the flanks rather bright ochraceous 

 buff. In a series from Bahia and Goyaz the sides of the belly are somewhat 

 paler and duller. 



F. rufa was already known to occur in the Amazonian region, flfr. Chapman * 

 having recorded a specimen from Santarem, procured by Williams. 



* Auk, 1891. p. 29. 



