title: Eonandeva gen. nov., a new distinctive genus from Eocene Baltic amber (Diptera: Chironomidae).
abstract: A new fossil genus, Eonandeva gen. nov., with two new species: E. helva sp. nov. (type for the genus) and E. latistyla sp. nov., is described from Eocene Baltic amber (~45-40 Ma). Adult males of both new species show the wing venation pattern, shape and chaetotaxy typical for the tribe Tanytarsini. The characters defined as prior apomorphies for the new genus--the gonostylus with a subapical flattened lobe and the stout, strongly elongated superior volsella--separate Eonandeva from the closely related extant genus Nandeva Wiedenbrug, Reiss et Fittkau, 1998.
authors.affiliation: Department of Invertebrate Zoology and Parasitology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland.; Email: unknown.
authors.forename: Marta
authors.initials: M
authors.lastname: Zakrzewska
authors.affiliation: Department of Invertebrate Zoology and Parasitology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland; Email: wojciech.gilka@biol.ug.edu.pl.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Giłka
mesh_terms: D018647:Amber / Q000737:chemistry; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D001454:Baltic States; D049628:Body Size; D002683:Chironomidae / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D005580:Fossils / Q000033:anatomy & histology; D008297:Male; D009929:Organ Size
chemical_list: D018647:Amber