18. GEEANOSPIZIAS. 



1. Geranospizias caerulescens. 



81 



X. p. 318(1817); 



Aplomado, Azara, Apunf. i. p. 101 (1802). 

 Sparvius caerulescens, Vinll. X. Diet. d'Hist Nat 



Piicher. Her. Zool. 1850, p. 90. 

 Falco hemidactylus, Teimn. PL Col. i. pi. .3 (1820) ; Max Beitv \\\ 



p. 97 (18.30). • 



Falco gracilis, Temm. PL CoL i. pi. 91 (1824). 

 Astur hemidactylus, Viff. ZooL Joiini. i. p. .338 (1824). 

 Astur gracilis, i'if/. ZooL Journ. i. p. 338 (1824). 

 Nisus gi-acilis, Less. Man. d'Orn. i. p. 96 (1828) ; Bunn. Th Bras ii 



p. 124 (18.55). "" ' 



Nisus hemidactylus, Less. Man. i. p. 96 (1828); BOrb Von Am 



Mer. p. 86 (1835) ; SchL 31m. P.-B. Astures, p. 53 (1862) 

 Ischnosceles gracihs, StrkU.Ann. N. H. xiii. p. 409 (1844) -id Orn 



Syn. p. 124 (185.5). ^ > • 



Geranospiza gracilis Kaup, Lsis, 1847, p. 183 ; Gray, Cat. Accipitr. 



1848, p 68 ; ul Gen. B. p. 28 (1849) ; Bp. Consp. i. p. 30 (1850) 

 Ischnosceles hemidactylus, HartL Lid. Azara, p. 2 ; Gray, Geti. B. 



Geranopus gracilis, Kaup, Contr. Orn. 1850, p. 65; Pelz. Orn. Bras. 



Ischnosceles cajrulescens, StricM. Orn. Syn. p. 124 (1855) 

 Geranopus hemidactylus, Pelz. Orn. Bras. pp. 7, ,398 (1871). 

 Geranospizias hemidactylus, Sund. Av. Tent. p. 107 (1873). ' 



Tibia and foot of G. carulescens. 



Adult male (type of G. hemidactylus). Above slaty blue, the nape 

 slightly mottled with white, the upper tail-coverts also spotted with 

 white on the outer web ; sides of head and neck and entire under 

 surface bluish grey like the back, with slight remains of whitish cross 

 bars on the upper part of thighs and lower under tail-coverts, the 

 rest ot the latter white at base, shading into ochraceous, with au 



VOL. I. „ 



