Ornithocephalus torresii Salazar & Soto Arenas, a new species from the
Pacific slope of Oaxaca, Mexico, is described and illustrated. It is
distinguished by the nearly closed, globose flowers and the cymbiform
lip with a small, irregularly dentate-lacerate lobule at each side of
the base. A key to all the species of Ornithocephalus hiterto recorded
from Mexico is provided.