11. ALECTRFEUS. 39 



hardly apparent. In both species the outer primary is abnormally 

 shortened, and terminates in the male in a pointed end turning 

 inwai'ds. In A. risorius the male in the breeding-season altogether 

 loses the feathers on the throat and sides of the head below the 

 eyes, and the naked skin becomes of a bright orange colour (see 

 ex. c). (Cf. Barrows, Bull. Nutt. Orn. CI. ii. p. 140.) 



Key to the Species. 



A. Smaller ; black breast-collar imperfect ; external 



rectrix of male slightly elongated and broadened 1. tricolor, p. 39. 



B. Larger ; black breast-collar broad ; external rectrix 



of male much elongated, not broadened 2. risorius, p. 39. 



1. Alectrurus tricolor. 



Gallito, Azara, Apunt. ii. p. 240. 



Alectrurus tricolor, Vieill. Nouv. Diet. p. 408; id. Enc. Metk. p. 860 ; 



Bp. Consp. i. p. 194; a" Orb. Vol/., Ois. p 341; Burin. Si/st. Ueb. ii. 



p. 511 ; Scl. Cat. A. B. p. 201 ; Pelz. Orn. Bras. p. 98 ; Scl et Salv. 



P. Z. S. 1870, p. 611 (Bolivia) ; iid. Nomencl. p. 43 ; Scl. et Huds. 



Arg. Orn. i. p. 122. 

 Alectura azara?, Sw. Nat. Libr., Flycatch. p. 96, pi. 6. 

 Muscicapa alector, Max. Beitr. iii. p. 874 ; Licht. Doubl. p. 53 ; 



Temm.Pl. Col. 155. 

 Muscicapa alectrura, Vieill. Gal. Ois. p. 211, pi. 132. 

 Gallita tricolor, Vieill. Anal. p. 68. 

 Alectrurus alector, Less. Tr. cF Orn. i. p. 387. 



Above black ; rump greyish ; sides of the head, scapularies, lesser 

 wing-coverts, and outer margins of secondaries white ; tail black, 

 outer rectrix on each side produced, expanded, fan-shaped : beneath 

 white, patch on each side of the breast forming an incomplete collar, 

 black ; bill horn-colour ; feet black : whole length 7"2 inches, 

 wing 2-8, tail, outer rectr. 2-5, middle rectr. 1-5. Female. Above 

 brown ; rump and lesser wing-coverts pale : beneath dirty white ; 

 sides of breast brown ; tail short and even. 



Hah. Pampas of South Brazil, Paraguay, Uruguay, and Argentine 

 Republic. 



a, b. $ ad. ; c. 2 Pelotas, Rio Grande do Sul, Salviu-Godman Coll. 



ad. sk. Brazil (Joyner). 



d,e.(S 2 ad. ;/. ? Brazil. Salvin-Godman Coll. 



ad. sk. 



y. 3 jr. sk. Brazil. Sclater Coll. 



h. c? ad. sk. Brazil. Purchased. 



k, I. S ad. sk. S. America. Jardine Coll. 



m, n. Ad. st. Brazil. Dr. J. E. Gray [P.]. 



2. Alectrurus risorius. 



Cola rara pardo y bianco, Azara, Apunt. ii. p. 244. 



Le guira-yetapa, Vieill. Nouv. Diet. xii. p. 409; id. Enc. Meth. p. 861. 



Muscicapa risoria, Vieill. Gal. Ois. i. p. 209, pi. 131 (1825). 



