16 Genera of Humming Birds. 



thigh, pure white. Wings dark purple. Tail purplish-black. 

 Bill black. 



Total length, 3|in. Wing, If. Tail, \\. Culmen, f . 

 Female. — Upperside golden-green, excepting the rump which 

 is buff. Throat, breast and abdomen deep buff. Sides of 

 the neck and breast brown. Median rectrices buff at base, 

 then black slightly tipped buff, lateral buff with a black 

 spot in centre of internal edge. Bill black. Same length 

 as male. 



22. Acestrura heliodori, Bourc, Rev. Zool., 1840, 



p. 275. 



Mellisuga heliodori, Gray, Gen. Birds. Vol. I., p. 113. 



Calothorax heliodori, Bon, Consp. Gen. Av., 1850, Vol. I., p. 85, 



Lucifer heliodori,, Reich, Troch. Enum., 1855, p. 10. 



Chaetocercus heliodori, Cab and Heine, Mus. Hein., 1860, p. 60. 



Heliodorës Wood star, Gould, Mon. Troch. Vol. III., p. 117. 



L'Acesture dHeliodore, Muls, Hist. Nat. Ois., m. t. iv., p. 121. 



Habitat, Columbia. 



Male. — Upperside, abdomen and undertail-coverts dark 

 grass-green. Throat metallic violet-red, feathers elongated 

 on the sides. Breast greyish- white. A patch of white on the 

 flanks. Wings purplish-brown. Tail brownish black. 



Total length, 2| in. Wing, 1 J. Tail, J. Culmen, J, 



Female. — Upperside golden-green. Lores and ear-coverts 

 dark brown. Underside deep buff. Tail deep buff with sub- 

 terminal black bar. Bill black. 



Same length as male. 



Very abundant in Columbia. 



23. Acestrura decorata, Gould, P.Z.S., 1860, p 1309. 



Decorated Wood star, Gould, Mon. Troch. Vol. III., p. 146. 



Habitat, Mérida (Venezuela). 



Both sexes of this species are exactly like the preceeding, 

 but the feathers of the throat are not so prolongated, and 

 the colour is of a more metallic lilac red ; but I doubt very 

 much if this is sufficient to consider it as a distinct species. 



I have several specimens of both sexes sent to me from 

 Merida, Venezuela. 



