Diaphoreolis flavovulta, the yellow-head aeolid or yellow-head cuthona, is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Trinchesiidae.

[2] This species was described from inner Monterey Bay, California, United States.

[1] Reported along the East Pacific coastline of America from Kayostia Beach, Clallam County, Washington state to Hazard Canyon, San Luis Obispo County, California.

[3]