Genera of Humming Birds. i [3 



Genus LIL, Chlorolampis, Cab., Mus. Heine, i860, t. iii., 



p. 47. 



Type : Trochilns auriceps, Gould. 



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

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

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

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

 and long, the last one twice as long as the median rectrices, 

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

 Tarsi clothed. Sexes unlike. 



Habitat. — Mexico. 



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



1852, p. 137. 



Sporadiniis aiiriccps, Bon., Rev. and Mag. Zool, 1S54, p. 

 223. 



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



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



Le Chlorolampe a tete 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 wath large gray spots. Maxilla fiesh colour at 

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



Total length, 2i'n'\. Wing, if. Tail, i|. Culmen, \. 



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

 Median rectrices 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 b}' Mr. Floresi d' 

 Arcais. 



1 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. 



