Dracula lotax (Luer) Luer
From the Greek lotax, "a clown", in allusion to the fancied face seen in the flower.
Additional Information: Apparently endemic in the tall, wet forests of eastern and southeastern Ecuador at altitudes of 2,950 feet (900 m) to 5,250 feet (1,600 m).
Masdevallia lotax Luer
Masdevallia bomboiza Fiske