Idiostyla is a genus of moth in the family Cosmopterigidae. It was discovered in 1921 by Edward Meyrick.Catalogue of Life. 2010. http://www.catalogueoflife.org/annual-checklist/2010/search/all/key/idiostyla/match/1 Species include oculata and catharopis. Both were discovered in Fiji and neither has been catalogued since.
It should not be confused with several species of craneflies bearing the species name idiostyla.
Species Idiostyla catharopis Meyrick, 1922 Idiostyla oculata Meyrick, 1921
References
Natural History Museum Lepidoptera genus database