A new species of Plecia, P. parisiensis n. sp., is described from the lower Eocene amber of the Paris Basin. It is compared to other Cretaceous, Paleocene and Eocene Plecia. Reexamination of the status of some bibionid species led to the following changes: Plecia edwardsii (Oustalet, 1870) n. comb. for Bibio edwardsii Oustalet, 1870; Plecia chapuisii (Oustalet, 1872) n. comb. for Bibio chapuisii Oustalet, 1872, and Plecia oustaleti (Brongniart, 1876) stat. rest.
Insecta, Diptera, Bibionidae, Plecia, lower Eocene, France, amber, new species