PASSERES 
Geographical Distribution. Central America from Mexico southwards, and 
South 
America down to Southeastern Brazil, but absent in Paraguay, Argentina and Chili. 
IL: 
I2. 
KEY TO PAE SPE ClES AND SUBS PB EGEE Sia) 
. Back (except the rump in some species) black. 
Vo black whatever in the plumage. Back always green . 
2, Rump black like the back or washed with dull bluish or violet . 
eis and upper tail coverts bright azure blue or whitish blue . 
white band across the inner web of the quills . 
No white band acyvoss thequlls . . . . . 
. Whole abdomen bright yellow, under tail coverts yellow, tipped with 
black. Lateral tail feathers x 
Sides of the abdomen and under tail coverts black, 
uth a broad yellowish white cross band. 
no white band 
across the tail. 
. Central tail feathers like the lateral ones with a yellowtsh white cross- 
Gap aieees Pee) re 5 sip a 
Central tail feathers uniform Hee 
. A narrow frontal band, cheeks and antertoy portion of throat orange 
yellow . Spee ey ce sk, monies 
Anterior part of the head as fay as the eyes, sides of the head and 
neck, and the whole throat bright yellow . 
. Head bright yellow . 
Head above white 
Head above blue . 
Head red. 
. Feathers of the occ hae but slightly elongated. blackish at the ae 
Tail not exceeding 34 mm. in length . 
Feathers of the occiput snow white to the base and so much elongated 
as to form a long, full crest. Tail 36 mm. 
. Plumage above and below strongly glossed with metallic blue. Wing 
60-67; 
Plumage opaque velvety black. 
Tail 25 30 mm. 
. Size larger. Wing 68-70 ; tail 30-32 mm. Black of upper and under 
surface more intense and more bluish . , 
Wing 60 64 ; tail 24-28 mm. Black of spate duller 
and less bluish 
Size smaller. 
Abdomen and under tail coverts dull es eee 
Abdomen slightly glossy like the vest of the body. Longer under ‘tail 
coverts tipped with greyish or yellowish eae 
Back, sides of the head and throat deep black, rump washed with dull 
bluish ; middle of the belly and under tail coverts dull olive yellow. 
All the under surface uniform black. 
General colour and a broad frontlet deep black . 
On 
3. P. FASCIICAUDA FASCIICAUDA CO. 
4. P. FASCIICAUDA PURUSIANA Gy. 
1. P. AUREOLA AUREOLA (. 
2. P. AUREOLA FLAVICOLLIS &. 
5. P. ERYTHROCEPHALA &. 
8. 
Tae 
13) 
Q. 
15. P. LEFUCOCILLA COMATA GO. 
11. P. LEUCOCILLA LEUCOCILLA @. 
10. 
14. P. LEUCOCILLA CORACINA &. 
oc Tate 
12. P. LEUCOCILLA BAHIZ O. 
13. P. LEUCOCILLA ANTHRACINA (&%. 
21. P. HOFFMANNSI G. 
1g. P. CORONATA VELUTINA &. 
(1) The females of Pipra isidorei leucopygia & P. leucocilla anthvacina, unknown to the author. are not included in the key. 
