320 NORTH AMERICAN BIRDS. 



lustre ; length 3.25, wing 1.90, tail 1.15, culmen .75. Sab. Western 

 Mexico (Mazatlan). 



I. magica (Mtjls. & Verr.). Magic Hummingbird. 1 

 b*. Under tail-coverts in adult male dusky gray, glossed with green, and bor- 

 dered with grayish white ; upper tail-coverts dull smoke-gray, like tips 

 of middle tail-feathers. 

 Adult male : Above bronze-green or greenish bronze ; chin and throat 

 metallic emerald-green (with a bluish cast only in certain lights) ; 

 remaining under parts bronzy green or greenish bronze; wing 

 2.10, tail 1.40 (forked for .25-.35), culmen .70. Sab. Tres Marias 

 Islands, western Mexico. 



I. lawrencei Berl. Lawrence's Hummingbird." 

 a'. Under tail-coverts in adult male uniform blue-black. 



Adult male: Above metallic bronze-green, including upper tail-coverts; 

 the hind-neck more grass-green, and the forehead brilliant metallic 

 greenish blue, passing into shining green on crown ; entire chin and 

 throat rich deep metallic blue, with a purplish cast in certain lights; 

 breast and belly deep bluish green, the sides more bronzy ; wing 1.90- 

 2.00, tail 1.30 (forked for .50), culmen .65. Sab. Southern Mexico 

 (Tehuantepec). 



I. doubledayi (Bourc.). Doubleday's Hummingbird." 



1 Hylocharia magica Muls. &, Verb., Ann. Soo. Linn. Lyon, xviii. 1872, 110. lache magica Elliot, 

 Synop. Troch. 1879, 235. [Possibly the young male of I. latirostrie.} 

 3 lache lawrencei Berlei\sou, MS. 

 3 Trochilus doubledayi Bonne, P. Z. S. 1874, 46. lache doubledayi Elliot, Synop. Trooh. 1879, 235. 



