Polycera melanosticta is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.

[2] This species was described from ten specimens collected from underneath a paint raft at Devonport Naval Base, Waitemata Harbour, Auckland, New Zealand.

Polycera melanosticta feeds on Bugula neritina and Bugula stolonifera.

[1]