© Joseph Dougherty. All rights reserved.
Lampornis calolaemus Salvin, 1865
Mountain Gem hummingbird, male.
The Purple-throated Mountaingem (Lampornis calolaemus) is a hummingbird which breeds in the mountains of southern Nicaragua, northern Costa Rica and western Panama. This bird inhabits forested areas in hilly terrain, and is found at altitudes from 800 m to 2500 m.
It is replaced in southern Costa Rica by its close relatives, the White-throated and Gray-tailed Mountaingems, with which it is sometimes considered conspecific. These three species form a closely related group that evolved some 3.5 million years ago and has diversified since.