The first fossil record of Nandeva Wiedenbrug, Reiss & Fittkau (Diptera: Chironomidae) in early Eocene Fushun amber from China

Abstract

Giłka, W., Zakrzewska, M., Baranov, V., Wang, B. & Stebner, F., May 2016. The first fossil record of Nandeva Wiedenbrug, Reiss & Fittkau (Diptera: Chironomidae) in early Eocene Fushun amber from China. Alcheringa 40, xxx–xxx. ISSN 0311-5518

The first fossil representative of the extant chironomid genus Nandeva Wiedenbrug, Reiss & Fittkau, 1998 is described based on a specimen found in early Eocene (50–53 Ma) Fushun amber from China. The adult male of Nandeva pudens sp. nov. has the long RM vein as a continuation of M and R₄₊₅, the bare squama, the strongly reduced anal area of the wing and hypopygial characters typical of extant species of the genus. Following the systematic concept based on adult male morphology and characters examinable in fossil specimens, we present N. pudens as a possible member of the Tanytarsini, arguing that Nandeva is part of this tribe or a possible sister group to the tribe. This is the first record of Nandeva from the Palaearctic region.

Wojciech Giłka [[email protected]] University of Gdańsk, Department of Invertebrate Zoology and Parasitology, Wita Stwosza 59, 80-308 Gdańsk, Poland; Marta Zakrzewska [[email protected]] University of Gdańsk, Department of Invertebrate Zoology and Parasitology, Wita Stwosza 59, 80-308 Gdańsk, Poland; Viktor Baranov* [[email protected]] Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany; Bo Wang† [[email protected]] Chinese Academy of Sciences, Nanjing Institute of Geology and Palaeontology, State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing 210008, PR China; Frauke Stebner [[email protected]] University of Bonn, Steinmann-Institute, Section Palaeontology, Nussallee 8, 53115, Bonn, Germany. *Also affiliated with Humboldt University of Berlin, Faculty of Mathematics and Natural Sciences, Geography Department, Rudower Chaussee 16, 12489 Berlin, Germany. †Also affiliated with Chinese Academy of Sciences, Institute of Zoology, Key Laboratory of Zoological Systematics and Evolution, Beijing 100101, PR China.

Key words:

• Diptera
• Chironomidae
• non-biting midges
• Nandeva
• new species
• early Eocene
• Fushun amber

Acknowledgements

This work was supported by University of Gdańsk, ‘Young Researcher’ grant (538-L114-B604-15) (M.Z.), the National Natural Science Foundation of China (41572010) and a Research Fellowship from the Alexander von Humboldt Foundation (B.W.), and by a funding to Prof. Dr. Jes Rust (Steinmann-Institute, University of Bonn) (RU665/10-1) from the German Research Foundation (DFG) (F.S.).