Genera of Humming Birds. i [3 



Genus LII., Chlorolampis, Cab., Mus. Heine, i860, 1. iii., 



P- 47- 

 TYPE : Trochilus auriceps, Gould. 



Bill about as long as the head, straight, rather wide at base, 

 and terminating to a sharp point. Wangs long. Tail long 

 and forked, two of the median rectriees very short and even, 

 the next one, one-third longer, the two outermost ones narrow 

 and long, the last one twiee as long as the median reetrices, 

 all of them being semi-rounded at the points. Feet small. 

 Tarsi clothed. Sexes unlike. 



Habitat. — Mexico. 



156. Chlorolampis AURïCEPS, Gould, Jard, Contr., Orn., 



1852, p. 137. 



Spo radians auriceps, Bon., Rev. and Mag. Zool, 1854, p. 

 223. 



Chlorostiibon auriceps, Gould, Mon.Troch, vol. v., p. 350. 



Long-Tailed Emerald, Gould, Mon. Troch, vol. v., p. 350. 



Le Chlorolampe à tête d'or, Muls. Hist. Nat. Ois. Mou., 

 1875, to ii, p. 80. 

 Habitat. — Mexico. 



Male. — Crown metallic golden. Upperside golden-green. 

 Throat metallic yellowish-green. Breast and abdomen 

 metallic golden. Vent white. Wings purplish-brown. 

 Tail long, deeply forked, bluish-black, all but the outermost 

 feathers tipped with large gray spots. Maxilla flesh colour at 

 base, rest black. Mandible flesh colour with black tip. 



Total length, 3fin." Wing, ij. Tail, i~. Culmen, J. 



Female. — Upperside bronzy-green. Underside dull gray. 

 Median rectriees shining green ; lateral green at base, then 

 black with gray tips, outermost ones green at base, then gray, 

 then black with grayish tips. 



This very rare species was discovered by Mr. Floresi d' 

 Arcais. 



I have only one male specimen, Ex Coll Costa de 

 Beauregard. 



157. Chlorolampis forficata, Ridgw. Pr. U.S., Nat. Mus. 



vol. viii., p. 574. 



Forked Tail Emerald. 



