50 



TYRANNID-E. 



shaft-stripes on the head, back, and breast ; wings and tail black ; 

 outer web of outer rectrix whitish : below rather paler, and more 

 whitish on throat and under wing-coverts : whole length 9 inches, 

 win^ 4*3 ; tail, outer rectr. 4 - 4, middle 3. 

 Hub. ISouth-eastern Brazil. 



After examining a number of skins I have felt obliged to reduce 

 the number of recognizable species of this genus to two, as I find 

 intermediate forms between C. colonics and C. fuscicapillus, which I 

 formerly considered distinguishable. 



Copurus extends from Nicaragua southwards throughout 

 Colombia and Amazonia down to Paraguay. The curious elongated 

 pair of median rectrices render it easily distinguishable. It is said 

 to breed in holes of trees (Nutting, I. i. c). 



Key to the Species. 



A. Interscapulium uniform black 1. colonus, p. 50. 



B. Interscapulium variegated with greyish white 2. leucoiwtus, p. 51. 



1. Copurus colonus. 



Colon, Azara, Apunt. ii. p. 114. 



Muscicapa colonus, Vieill. Nouv. Diet. xxi. p. 448 ; id. Enc. Meth. 



p. 824. 

 Platyrhynchus platurus, Vieill. Nouv. Diet, xxvii. p. 17 ; id. Enc. 



Meth. p. 839. 

 Muscipeta leucocilla, Hahn, Ami. Vog. Lief. 9. pi. 2. 

 Platyrhynchus filicauda, Spix, Av. Bras. ii. p. 12, pi. 14. 

 Muscipeta monacha, Max. Beitr. iii. p. 925. 

 Copurus filicauda, Strickl. P. Z. S. 1841, p. 29; Tsch. Faun. Per. 



Aves,]>. 157; Burm. Si/st. Ueb. ii. p. 507; Bp. Consp. i. p. 194; 



Sclater, P. Z. 8. 1854, p. 113. 

 Copurus colonus, Cab. et Hein. Mus. ILein. ii. p. 41 ; Scl. P. Z. S. 



18(51, p. 381 ; id. Cat. A. B. p. 204 ; Pelz. Orti. Bras. p. 100 ; 



Scl. et Salv. Nomencl. p. 44; Hamilton, Ibis, 1871, p. 304; Tacz. 



P. Z. S. 1874, p. 533 ; id. Orn. Per. ii. p. 209. 

 Copurus funehris, Cab. et Hein. Mus. Hein. ii. p. 41. 



