jgg SYNOPSIS OF THE HUMMING-BIRDS. 



Key to the species. 



A. Tuft of feathers on the breast pale buff. 



a. Entire under parts rufous. 1. A. ciipripennis. 



b. Breast dark bronzy-green ; abdomen buff. 2. A. caumatonola. 



B. Tuft of feathers ou the breast pure white. 



a. Rump metallic lilaceous-purplu. 3. A. castelnaudi. 



b. Rump metallic-greeu. 4. A. paviela. 



1. Aglseactis cupripennis. 



Trochilus cupripennis, Bouec. and Muls., Ann. Soc. d'Agr., Lyon (1843), t. vi, p. 46.— Id., Rev. Zool. (1843), 



p. 71. 

 Mellisuga cupripennis, (iBAT, Gen. Birds, vol. i, p. 112, sp. 25. 

 Aglceactis cupripennis, Bon., Consp. Gen. Av., vol. i, p. 73 (1850).— Id., Rev. and Mag Zool. (18.54), p. 253. 



Reich., Aufz. der Colib., p. 9 (1853).— Gould, Mon. Troch., vol. iii, pi. 179. — Id., Intr. Troch., octavo 



ed., p. 106. 

 Heltanthea cupripennis, REirn., Troch. Enuni., p. 6, pi. 737, figs. 4G89-90 (1855). 

 Aglaiactis cupripennis. Cab. and Hein., Mus. Hein. Th., iii, p. 69 (1860). 

 Aglaiactis ce.quatorialis. Cab. an(} Hein., Mus. Hein. Th., iii, p. 70 (note) (I860).— Gould, Intr. Troch, octavo 



ed., p. 106 (1861). 

 Aglceactis parvula, Gould, Intr. Troch., octavo ed., p. 106 (1861). 

 Aglaeaclis cupripennis, Muls., Hist. Nat, Ois. Mouch., torn, iii, p. 24 (1875). 



Hab, Columbia, Ecuador, and Peru. 



Male. Top of head and back blackish-brown. Viewed against the feathers, the 

 back is luminous purplish-crimson, grass-green on upper tail coverts; wings pur- 

 plish-brown; shaft of external feather rufous for three-fourths its length. A tuft 

 of pale buff feathers on the breast, rest of under parts rufous. Middle rectrices 

 rufous at their base, remaining portion bronze, lateral ones rufous margined and 

 tipped with bronze. Maxilla black, mandible flesh-color, tip black. Total length, 

 4| in. Wing, 3| in. Tail, 2g in. Culmen, ^ in. 



Female like the male, less luminous on the back. 



2. Aglaeactis caumatonota. 



Aglceactis caumatonotus, Gould, P. Z. S. (1848), p. 12. 



Aglaeactis caumatonotus, Bon., Consp. Gen. Av., vol. i, p. 73 (1850). — Reich., Aufz. der Colib., p. 9 (1853). 



Heltanthea caumatonota, Reich., Troch. Enum., p. 5 (1855). 



Aglaeactis olivaceo-cauda, Lawr., Ann. N. Y. Lye. Nat. Hist. (1867), p. 470. — Mui.s., Hist. Nat. Ois. Mouch., 



torn, iii, p. 26 (1875). 

 Aglaiactis caumatonota. Cab. and Hein., Mus. Hein. Th., iii, p. 70 (note 4) (1860). 

 Aglceactis caumatonota, Gould, Intr. Troch., octavo ed., p. 106 (1861).— Wuitely, P. Z. S. (1873), p, 190. 



ITah. Peru. 



3fale. Top of head, back, cheeks, and throat brownish-black. Loral space and 

 spot behind the eye rufous. Lower part of back and rump when viewed from 

 behind dark crimson, shading into green on the upper tail coverts. Upper part of 

 breast and sides of neck deep buff. Tuft of buff feathers on the breast. Lower 

 part of breast and flanks dark bronzy-green almost black. Abdomen and under 

 tail coverts roddisli-buff. Greater wing coverts olive-green, primaries and second- 

 aries purplish-brown. Shaft of outer primary rufous for three-fourths its length. 



