320 ' NORTH AMERICAN BIRDS. 



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

 Mexico (Mazatlan). 



I. magica (Muls. & Verr.). Magic Hummingbird.^ 

 V^. 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. Hab. Tres Marias 

 Islands, western Mexico. 



I. lawrencei Berl. Lawrence's Hummingbird.' 

 «^ 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 bell}^ deep bluish green, the sides more bronzy ; wing 1.90- 

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

 (Tehuantepec). 



I. doubledayi (BouRc). Doubleday's Hummingbird.' 



1 Hylocharis magica Muls. & Verr., Ann. Soc. Linn. Lyon, xviii. 1872, 110. lache magica Elliot, 

 Synop. Troch. 1879, 235. [Possibly the young male of /. latiroatria.'] 

 ' lache latcrencei Berlepsco, MS. 

 3 Trocliilus doubledai/i BouRC, P. Z. S. 187-1, -16. lache doubledayi Elliot, Synop. Troch. 1879, 235. 



