title: Revision of the species of the Merodon nanus group (Diptera: Syrphidae) including three new species.
abstract: The nanus group of the genus Merodon Meigen (Diptera, Syrphidae) is revised, yielding an illustrated key, a discussion of taxonomic characters and morphological diagnosis for the five species of this group. Three new cryptic species are described, Merodon kopensis Vujić et Hayat sp. n., M. neonanus Vujić et Taylor sp. n. and M. rasicus Vujić et Radenković sp. n. New diagnostic characters are given for M. nanus Sack and M. telmateia Hurkmans. In addition, environmental profiles for each investigated species have been defined and compared, and maps of distribution and richness created. Niche dissimilarity was found for each species. Eastern Anatolia and the southern Aegean region of Turkey are reported as the most species rich regions for the nanus group.
authors.affiliation: University of Novi Sad, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.; Email: ante.vujic@dbe.uns.ac.rs.
authors.forename: Ante
authors.initials: A
authors.lastname: Vujić
authors.affiliation: University of Novi Sad, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.; Email: snezana.radenkovic@dbe.uns.ac.rs.
authors.forename: Snežana
authors.initials: S
authors.lastname: Radenković
authors.affiliation: University of Novi Sad, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.; Email: jelena.acanski@dbe.uns.ac.rs.
authors.forename: Jelena
authors.initials: J
authors.lastname: Ačanski
authors.affiliation: University of Novi Sad, Department of Biology and Ecology, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.; Email: ana.grkovic@dbe.uns.ac.rs.
authors.forename: Ana
authors.initials: A
authors.lastname: Grković
authors.affiliation: World Museum Liverpool, Entomology Department, William Brown Street, Liverpool, Merseyside, L3 8EN.UK.; Email: mikechios@chioshotel.gr.
authors.forename: Mike
authors.initials: M
authors.lastname: Taylor
authors.affiliation: Ege University Botanical Garden-Herbarium Research and Application Center, 35100 Bornova, İzmir, Turkey.; Email: serdar.gokhan.senol@ege.edu.tr.
authors.forename: Serdar Gökhan
authors.initials: SG
authors.lastname: Şenol
authors.affiliation: Süleyman Demirel University, Faculty of Agriculture, Department of Plant Protection, 32260 Isparta, Turkey.; Email: rustemhayat@sdu.edu.tr.
authors.forename: Rüstem
authors.initials: R
authors.lastname: Hayat
mesh_terms: D000818:Animals; D004175:Diptera / Q000033:anatomy & histology / Q000145:classification*; D005260:Female; D008297:Male; D010802:Phylogeny; D013045:Species Specificity