Neofidia (formerly known as Fidia) is a genus of leaf beetles in the subfamily Eumolpinae.

[1] The name "Fidia" was first used in 1836 by the French entomologist Pierre François Marie Auguste Dejean in his Catalogue des Coléoptères, listing two species from the New World, F. lurida and F. murina.

[2] In 1861, Victor Motschulsky described a new species of beetle from Japan with the name Fidia atra.

This proposal was rejected by the commission in 2009, upholding the priority of Fidia Motschulsky, 1861.

[1] There are 24 species currently recognised in the genus Neofidia:[2][1] Fidia murina Glover, 1868 is considered a nomen dubium.