Hermosita sangria is a brightly coloured species of sea slug, specifically an aeolid nudibranch. It is a marine gastropod mollusc in the family Facelinidae.[1]
The holotype of this species was found at 17 m depth at Isla San Benito Oueste, 28.3333°N -126°W on the Pacific Ocean coast of Baja California, Mexico. Additional specimens used in the original description were from nearby Isla Cedros and Bahia Magdelana, Pacific Ocean, Mexico.[2] It has also been reported from Costa Rica.
Hermosita sangria feeds on the hydroid Solanderia.[3]