Genera of Humming Birds. 19 



28. Chaetocercus Bombus, G-ould, P.Z.S. 1870, p. 804. 



Potyxemus Bombus, Muls., Hist. Nat. des. Ois. m. 1877, t. 

 iv., p. 123. 



Little Wood Star, G-ould, P.Z.S. 1870, p. 804. 



Le Polyxeme Bourdon, Muls., Hist. Nat. Ois. m. 1877, t. iv. 

 p. 123. 



Habitat. — Ecuador. 



Male. — Upperside and abdomen dark bronze-green. Throat 

 metallic crimson. Breast rufous. Tail purplish black, inner 

 webs of third rectrices margined with buff at base. Wings 

 purplish brown. Tuft behind the thigh white. Bill black. 



Total length, 2i in. Wing, 1. Tail, f. Culmen, i. 



Female.— Upperside golden-green. Underside buff. Tail 

 buff with a subterminal black bar. Tuft behind the thigh 

 white. Bill black. Same size as male. 



This beautiful species was discovered in 1870 by Buckley, 

 the well known explorer, at Canelos, Ecuador. 



I have two males and one female in my collection, from which 

 the above descriptions were taken. 



*29. Chaetocercus Burmeisteri, Sclat, P.Z.S. 1887, p. 638. 



Burmeister's Wood Star. 



Le Chaetocerque de Burmeister. 



Habitat. — Tucuman. 



Male. — Upper side dark green metallic color. Wings purplish 

 black. Chin whitish. Throat metallic crimson red with green 

 reflections in certain lights. White spot behind the eyes 

 descending to breast. Breast whitish with dark spot on every 

 feather causing a greyish band on the middle of the breast. 

 Remainder of breast and abdomen white. Undertail coverts 

 yellow browD, spotted with green. The exterior rectrix black. 

 The second has a clear brown stripe on the inner border. The 

 third retrix is very short, only half an inch long and more than 

 eight lines shorter than the exterior, and quite black. The 

 two middle feathers are shorter than the third pair and partly 

 covered by the coverts ; they are of a metallic green colour like 

 the coverts. 



A single specimen of this species, which is very allied to 

 C. Bombus, is known. It is in the National Museum of Buenos 

 Ayres, Argentine Republic. 



