1 1Department of Biology, Faculty of Science and Literature, Cumhuriyet University, 58140-Sivas, Turkey (, Email: firstname.lastname@example.org
2 2Department of Entomology, The Natural History Museum, London SW7 5BD, UK (, Email: email@example.com
3 3Palaeontological Institute, Russian Academy of Sciences, 117647 Moscow, Russia (, Email: firstname.lastname@example.org
4 4D. L. J. Quicke, Unit of Parasitoid Systematics, Department of Biological Sciences, Imperial College at Silwood Park, Ascot SL5 7PY, UK, Department of Entomology, The Natural History Museum, London SW7 5BD, UK (, Email: email@example.com
The definition of the family Evaniidae is revised and Cretevaniidae are synonymised with Evaniidae based on evidence derived from recently described Mesozoic taxa and a new genus and species, Lebanevania azari, described here from Lebanese amber. A fore leg with a long trochanter and a 12-segmented antenna are autapomorphies of the new genus. A large, high and wide head and a high and short mesosoma are derived characters shared with other Evaniidae. The new genus also has complete fore wing venation and lacks a tubular petiole, which are ground plan features of the Evanioidea. A cladistic analysis of fossil and extant members of the superfamily Evanioidea and notes on fossil taxa are presented.