Proditrix megalynta is a species of moth in the family Glyphipterigidae first described by Edward Meyrick in 1915. It is endemic to New Zealand.
This species was first described by Edward Meyrick in 1915 using a specimen collected by George Howes in Otago or Southland in November and named Plutella megalynta.
Meyrick described this species as follows:
This species is endemic to New Zealand.
Adults of this species are attracted to light.