True Flies (Insecta: Diptera) from The
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Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 1–60, 2019 True flies (Insecta: Diptera) from the late Eocene insect limestone (Bembridge Marls) of the Isle of Wight, England, UK Wiesław KRZEMIN´ SKI1*, Vladimir BLAGODEROV2, Dany AZAR3, Elena LUKASHEVICH4, Ryszard SZADZIEWSKI5, Sonja WEDMANN6, Andre´ NEL7, Franc¸ois-Marie COLLOMB7, Alain WALLER7 and David B. NICHOLSON8 1 Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Ul. Sławkowska 17, 31-016 Krako´w, Poland. Email: [email protected] 2 Department of Natural Sciences, National Museums Scotland, Chambers St., Edinburgh EH1 1JF, UK. 3 Department of Biology, Faculty of Sciences II, Lebanese University, Fanar – Matn, P. O. box 26110217, Lebanon. 4 Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya Str. 123, 117868 Moscow, Russia. 5 Department of Invertebrate Zoology, University of Gdan´sk, Pilsudskiego 46, 81-378 Gdynia, Poland. 6 Senckenberg Research Institute and Museum, Research station Grube Messel, Markstraße 35, D-64409 Messel, Germany. 7 CNRS UMR 5202, Muse´um National d’Histoire Naturelle, CP 50, Entomologie, 45 rue Buffon, F-75005, Paris, France. 8 School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Road, Portsmouth PO1 3QL, UK. *Corresponding author. ABSTRACT: The Diptera fauna from the late Eocene of the Isle of Wight (Bembridge Marls) is studied including redescriptions of formerly described material. The fauna includes the following taxa: Anisopodidae – one species; Bibionidae – 11 species; Ceratopogonidae – one described and two unidentified species; Chironomidae – undetermined species of three subfamilies; Culicidae – four species; Cylindrotomidae – one species; Dixidae – one species; Keroplatidae – one described and four unidentified species; Limoniidae – 31 species; Mycetophilidae – 14 species; Psychodidae – two species; Scatopsidae – two species; Sciaridae – three species; Simuliidae – an unnamed species; Tipulidae – nine species. Diptera Brachycera: Agromyzidae – unidentified species; Anthomyzidae – two species; Asilidae – two species; Bombyliidae – one species; Chloropidae – one species; Dolichopodidae – unidentified species; Empididae – unidentified species; Ephydridae – two species; Heleomyzidae – unidentified species; Lauxaniidae – unidentified species; Otitidae – one species; Phoridae – unidentified species; Rhagionidae – two species; Stratiomyidae – two species; Syrphidae – unidentified species; Tabanidae – one species. Following new taxa are described: Leptotarsus (Longurio) fragmentatus Krzemin´ski, n. sp., Leptotarsus (Longurio) wegiereki Krzemin´ski, n. sp., Tipula (s. lato) anglicana Krzemin´ski, n. sp. (Tipulidae); Cyttaromyia rossi Krzemin´ski, n. sp. (Cylindrotomidae); Gurnardia corami Krzemin´ski, n. gen, n. sp., Pilaria hooleyi Krzemin´ski, n. sp., Pilaria volodii Krzemin´ski, n. sp., Cheilotrichia (Cheilotrichia) duplicata Krzemin´ski, n. sp., Cheilotrichia (Empeda) szwedoi Krzemin´ski, n. sp., Symplecta (Psiloconopa) gurnetensis Krzemin´ski, n. sp., Orimarga (Orimarga) lenae Krzemin´ski, n. sp., Dicranomyia (Dicranomyia) azari Krzemin´ski, n. sp., Dicranomyia (Dicranomyia) fasciata Krzemin´ski, n. sp., Helius (Helius) edmundi Krzemin´ski, n. sp., Helius (Helius) popovi Krzemin´ski, n. sp., Dicranoptycha staryi Krzemin´ski, n. sp. (Limoniidae); Wightipsychoda Azar, n. gen. (Psychodidae); Dilophus andrewrossi Nel, Colomb & Waller, n. sp., Bibiodes massiliensis Nel, Colomb & Waller, n. sp. (Bibionidae); Azana cockerelli Blagoderov, n. sp., Aglaomyia vectis Blagoderov, n. sp., Dziedzickia oligocenica Blagoderov, n. sp., Palaeoempalia saxea Blagoderov, n. sp., Mycomya hoolei Blagoderov, n. sp., Leia gurnardensis Blagoderov, n. sp. (Mycetophilidae); Regmoclemina haennii Krzemin´ski, n. sp. (Scatopsidae); Sylvicola problematica Krzemin´ski, n. sp. (Anisopodidae); Palaeoberidops barkeri Nicholson, n. gen., n. sp. (Stratiomyidae). The Diptera fauna and palaeohabitat of the Insect Bed is discussed. KEY WORDS: fossil insects, new taxa. The Diptera from the late Eocene of the Isle of Wight are regions. They are a very common and diversified group in the similar to the Recent fauna in generic composition, particu- Insect Bed. Most important information about fossil Diptera larly in containing genera occurring today in subtropical from Isle of Wight were published by Cockerell (1915, Downloaded6 2019 from Thehttps://www.cambridge.org/core Royal Society of Edinburgh.. Chalmers doi:10.1017/S1755691018000464Tekniska Högskola, on 06 Oct 2019 at 16:48:14, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S1755691018000464 2 WIESŁAW KRZEMIN´ SKI ET AL. Table 1 Current taxonomic position of the previously described species fossil Diptera form the Insect Limestone. Name and taxonomic placement as described Valid name and current taxonomic placement Acnemia simplex Cockerell, 1921; Mycetophilidae Mycetophilidae: Sciophilinae: Acnemia simplex Cockerell, 1921 Adelphomyia disjunctula Cockerell & Haines, 1921, p. 83; Limoniidae: Limnophilidae: Pseudolimnophila (Pseudolimnophila) disjunctula Limoniidae (Cockerell & Haines, 1921) Asilus gurnetensis Cockerell, 1921; Asilidae Not revised Atarba vectensis Cockerell, 1915; Limoniidae Limoniidae: Limoniinae: Helius (Helius) vectensis (Cockerell, 1915) Bibio extremus Cockerell, 1921; Bibionidae Bibionidae: ?Bibio extremus Cockerell, 1921 Bibio gurnetensis Cockerell, 1917a; Bibionidae Bibionidae: ?Bibio gurnetensis Cockerell, 1917a Bibio oblitus Cockerell, 1921; Bibionidae Bibionidae: ?Bibio gurnetensis Cockerell, 1917a Bibio oligocenus Cockerell, 1917a; Bibionidae Bibionidae: ?Bibio oligocenus Cockerell, 1917a Bibiodites confluens Cockerell, 1915; Bibionidae Bibionidae: Bibiodes confluens (Cockerell, 1915) Chrysopilus anglicus Cockerell, 1921; Rhagionidae Not revised Chrysopilus stigmaticus Cockerell, 1921; Rhagionidae Not revised Chrysops vectensis Cockerell, 1921; Tabanidae Not revised Culex petrifactellus Cockerell, 1915; Culicidae Culicidae: Ochlerotatus protolepis (Cockerell, 1915) Culex protolepis Cockerell, 1915; Culicidae Culicidae: Ochlerotatus protolepis (Cockerell, 1915) Culex protorhinus Cockerell, 1915; Culicidae Culicidae: Culex protorhinus Cockerell, 1915 Culex vectensis Edwards, 1923; Culicidae Culicidae: Culex vectensis Edwards, 1923 Dicranomyia excavata Cockerell & Haines, 1921; Limoniidae Limoniidae: Limoniinae: Dicranomyia (Dicranomyia) excavata Cockerell & Haines, 1921 Dicranomyia exhumata Cockerell, 1922; Limoniidae Limoniidae: Limoniinae: Dicranomyia (Dicranomyia) excavata Cockerell & Haines, 1921 Dicranomyia undulata Cockerell & Haines, 1921; Limoniidae Limoniidae: Limoniinae: Thaumastoptera undulata (Cockerell & Haines, 1921) Dixa priscula Cockerell, 1921; Dixidae Dixidae: Dixella priscula (Cockerell, 1921) Empeda ferruginea Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Cheilotrichia (Empeda) ferruginea (Cockerell, 1921) Empeda hyalina Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Cheilotrichia (Empeda) hyalina (Cockerell, 1921) Ephydra oligocena Cockerell, 1915; Ephydridae Anthomyzidae indet. Ephydra sepulta Cockerell, 1915; Ephydridae Anthomyzidae indet. Epiphragma spilopterum Cockerell, 1921; Limoniidae Limoniidae: Dactyolabinae: Dactylolabis (Dactylolabis) spiloptera (Cockerell, 1921) Gonomyia ferrea Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Gonomyia (Gonomyia) indecisa Cockerell & Haines, 1921 Gonomyia grisea Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Cheilotrichia (Empeda) hyalina (Cockerell, 1921) Gonomyia indecisa Cockerell & Haines, 1921; Limoniidae Limoniidae: Chioneinae: Gonomyia (Gonomyia) indecisa Cockerell & Haines, 1921 Gonomyia lutescens Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Gonomyia (Gonomyia) indecisa Cockerell & Haines, 1921 Gymnastes fasciatipennis Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Gymnastes (Paragymnastes) fasciatipennis Cockerell, 1921 Hippelates brodiei Cockerell, 1915; Chloropidae Chloropidae: Hippelates brodiei Cockerell, 1915 Holorusia vasifera Cockerell & Haines, 1921, Tipulidae Tipulidae: Ischnotoma (Ischnotoma) vasifera (Cockerell & Haines, 1921) Limnobia spilota Cockerell, 1921; Limoniidae Limoniidae: Limoniinae: Limonia spilota (Cockerell, 1921) Limnophila aliena Cockerell, 1921; Limoniidae Limoniidae: Limoniinae: Dicranomyia (Dicranomyia) aliena (Cockerell, 1921) Limnophila cyclospila Cockerell & Haines, 1921; Limoniidae Limoniidae: Limnophilinae: Limnophila (Limnophila) cyclospila Cockerell & Haines, 1921 Limnophila deleta Cockerell, 1921; Limoniidae Limoniidae: Limnophilinae: Limnophila (Limnophila) deleta Cockerell, 1921 Limnophila incognita Cockerell, 1921; Limoniidae Limoniidae: Chioneinae: Ilisia (Lunaria) incognita (Cockerell, 1921) Macromastix cladoptera Cockerell & Haines, 1921; Tipulidae Tipulidae: Leptotarsus (Macromastix) cladoptera (Cockerell & Haines, 1921) Megistocera gurnetensis Cockerell, 1921; Tipulidae Tipulidae: Brachypremna gurnetensis (Cockerell, 1921) Mesomyites concinna Cockerell, 1917a; Limoniidae Limoniidae: Chioneinae: Styringomyia concinna (Cockerell, 1917a) Mongoma cruciferella Cockerell, 1917a; Limoniidae Limoniidae: Limoniinae: Trentepohlia (Mongoma) cruciferella (Cockerell, 1917a) Mongoma pallescens Cockerell, 1921; Limoniidae Limoniidae: Limoniinae: Trentepohlia (Mongoma) pallescens (Cockerell, 1921) Mycetophila vectensis Cockerell, 1915; Mycetophilidae Mycetophilidae: Mycetophilinae indet. Mycomya