Genus Platystira and its Allies. 157 



length of the culmen ; beak rather com- 

 pressed 3. Lanioturdm. 



b. Wing more than double the length of tail 4. Diaphorophya. 



c. Tail equal to wing 5. Stenostira. 



Genus 1. Platystira. 

 Platysteira (lege Platystira), Jard. & Selby, 111. Orn. ii. 

 Addenda (c. 1830) : type P. cyanea. 



Key to the Species. 



a. Vertical line of white down the wing. 



a'. Forehead black, like the crown 1. cyanea. 



b'. Forehead white 2. albifrons. 



b. No white at all on wing 3. peltata. 



1. Platystira cyanea. 



Gobe-mouche a collier du Senegal, Briss. Orn. ii. p. 370, 

 pi. xxxvi. fig. 1, ? (1770). 



Gobe-mouche a gorge rousse du Senegal, Buff. PL Enl. v. 

 pi. 567. fig. 3,2(1778). 



Muscicapa cyanea, P. L. S. Miiller, Syst. Nat. Suppl. p. 170 

 (1766) ; Cassin, Proc. Phil. Acad. 1864, p. 256. 



Collared Flycatcher, Lath. Gen. Syn. ii. pt. 1, p. 330, $ 

 (1783). 



Muscicapa melanoptera, Gm. Syst. Nat. i. p. 939 (1788). 



Platyrhynchus collaris, Hahn u. Kiist. Vog. aus Asien, &c. 



' Lief. xx. Taf. 1 (1822) ; Bonn, et Vieill. Enc. Meth. ii. p. 836, 



$ (1823) ; Jard. & Selby, 111. Orn. i. pi. ix. fig. 1, £ (1830). 



Platyrhynchus melanoleucus , Bonn, et Vieill. Enc. Meth. 

 ii. p. 835, (J (1823). 



Platyrhynchus desmaresti, Jard. & Selb. 111. Orn. i. pi. ix. 

 fig. 2,$(c. 1830). 



Platysteira collaris et desmaresti, Jard. & Selby, 111. Orn. 

 ii. Addenda (c. 1830). 



Platystera lobata, Swains. B. of W. Afr. ii. p. 49 (1837) ; 

 id. Monogr. Flyc. p. 187, pi. xxii. $ (1837) ; Jard. Contr. 

 Orn. 1849, p. 8. 



Platystira melanoptera, Hartl. Orn. W. Afr. pp. 93, 272 

 (1857) ■ Cass. Pr. Philad. Acad. 1859, p. 50; Hartl. J. f. O. 



