358 i'sittacidj:. 



upper wing-coverts green, black in the middle ; primary-coverts 

 black along the middle, and edged with green on both webs ; 

 ijuills blackish, edged with green on the outer webs ; smaller under 

 wing-coverts uniform with the underparts ; the greater under 

 wing-coverts and inner webs of the quills below verditer-green ; 

 tail green, with the inner webs of the lateral tail-feathers brown- 

 orange, tinged with yellow ; tail below brown yellowish green : bill 

 lead-colour ; feet dusky. Total length about 7 inches, wing 5 - 5, 

 tail 2-35, bill 075, tarsus 0-45. {Mas. Berlepsch.) 

 Hab. Bogota. 



25. CAICA*. 



Type. 



Caica, Up. Consp. Ac i. p. 5 (18-50) C. melanocephala. 



Pionites, Heine, Ncmencl. Mm. Hein. Orn. p. 231 



(1890) 0. melanocephala. 



Range. Guiana and Amazon Valley. 



Key to the Species. 



a. Pileum black. 



«'. Thighs and flanks yellow, more or less orange, melanocephala, p. 358. 

 b'. Thighs and flanks lemon-yellow pallida, p. 360. 



b. Pileum like the nape rufous-orange. 



a'. Thighs and flanks green leucoyaster, p. 360. 



b'. Thighs and flanks lemon-yellow xanthomera, p. 361. 



1. Caica melanocephala. 



The White-breasted Parrot, Edw. Birds, iv. pi. 169 (1751); Lath. 

 Gen. Syn. i. p. 305 (1781) ; id. Gen. Hist. ii. p. 256, with var. A 

 (1822). 



Psittacus Mexicanus pectore albo, Briss. Orn. iv. p. 298 (1760). 



Psittacus melanocephalus, Linn. !$. N. i. p. 149, n. 41 (1706) ; Gm. 

 S. N. i. p. 346, n. 41 (1788) ; Lath. Ind. Orn. i. p. 128, n. 136 

 (1790); Shaw, Gen. Zool. viii. 2, p. 542 (1811); Bechst. Kurze 

 Ueb. p. 102 (1811-12) ; Vieill. N. D. xxv. p. 366 (1817) ; KtM, 

 Consp. Psitt. p. 70 (1820) ; Hahn, Vbg. aus As. Afr. etc. Lief. ii. 

 t. i. (1822) ; Vieill. Luc. Meth. iii. p. 1399 (1823) ; Spiv, Ar. Bras. 

 i. p. 46 (1824) ; Stcph. Gen. Zool. xiv. p. 101 (1826) ; Voitjt, Cm: 

 Uebers. p. 739 (1831) ; Less. Tr. a" Orn. p. 199 (1831); G. B. Or. 



* The generic name Caica, commonly attributed to Lesson, was not used by 

 him ; he only made use of the French name Les Caicas for a group (or rare , as 

 he calls it) of Parrots (Tr. d'Orn. p. 198, 1831), and Psittacus pileatus, Gm., 

 was looked upon as the type by him (Compl. de Buff. ix. p. 212, 1837) : later 

 on Lesson (Eev. Zool. f 842, p. 135 ; Descr. Mamm. et Ois. p. 197, 1847) inci- 

 dentally used the name Caica as a subgenus, while he was describing Psittacus 

 {Caica) chrt/sopoyon, which is a Brotoyeri/s. Bonajwrte was the first to use 

 the generic name Caica; he regarded P. mclanoccplmlvs, Linn., as the type, 

 but he included in it also P. pileatus, Gm. Although the name Caica evidently 

 refers to P. caica, Lath, {—pileatus, Gm.), which belongs to another genus, I do 

 not think we should be justified in not using it here. 



