210 FORMICAKIIM?. 



tail mostly black, with white bars on the outer webs only, except 

 at the ends and in the middle pair : whole length 6 inches, 

 wing 3-2, tail 2*7. Female. Above rufoua : beneath white, with 

 slight black bars {Spiv). 



Bab. S.E. Brazil. 



I have only males of this species before me. If Spix is correct, 

 the female corresponds rather with that of T. albicans than with 

 that of T. doliatus. 



a. c? ad. sk. Rio, Brazil. Sclater Coll. 



b. S ad. sk. S.E. Brazil. Sclater Coll. 



c. d. (S ad. sk. Bahia, Brazil ( Wuchever). Salvin-Godman Coll. 

 e. S ad. sk. S.E. Brazil. Gould Coll. 



47. Thamnophilus radiatus. 



Batara listado, Azara, Apunt. ii. p. 19G. 



Thamnophilus radiatus, VieiU. Nunr. Diet. iii. p. 315 ; Scl Edinh. 



rhil. Joum. u. s. i. p. 237 : id. F. Z. S. 18o8, p. 218 ; id. Cat. 



A. B. p. 175; Scl. et Salv. Nomtncl. p. 70; Bed. J. f. O. 1887, 



P- !"• 

 Thamnophilus doliatus, Bariv. Zonl. Voy. ' Beagle, in. p. 58 (Uru- 

 guay) ; d'Orb. Vol/., Ois. p. 1(38; Scl. et Salv. P. Z. S. 1879, 

 p. 623. 



Above black, with white cross bands ; cap black : beneath white, 

 with narrow black cross bands ; middle of belly nearly white ; tail 

 black, with white cross bands on both webs : whole length 6 inches, 

 wing 3, tail 2-6. Female. Above ferruginous red ; sides of head 

 and nape pale fulvous, with black striations : beneath pale fulvous- 

 white, 



Hab. Paraguay and Bolivia. 



As shown by Graf v. Berlepsch (I. s. c.) this appears to be the 

 true T. radiatus of Vieillot, most nearly allied to T. albicans of 

 Colombia. 



a, b. (S 2 ad. sk. Bolivia. Sclater Coll. 



48. Thamnophilus albicans. 



Thamnophilus albicans, Lafr. Met: Zool. 1844, p. 82 ; Sd. P. Z. S. 

 1855, p. 148 (Bogota) ; Scl. et Salv. Nomencl. p. 70. 



Above black, with regular broad white cross bands ; cap black ; 

 tail black, with white bars on both webs throughout : beneath 

 white, with narrow black cross bands, except in the middle of the 

 breast and belly : whole length 5-5 inches, wing 3, tail 2-5. 

 Female. Above chestnut-red, with faint indications of blackish bars 

 on the neck and rump : beneath dirty white, narrowly barred across 

 with black ; tail uniform chestnut. 



Bab. Colombia. 



The amount of white barring varies slightly in different indi- 

 viduals ; but this species has always most white beneath of all 

 the group. 



