Neoascia geniculata is a Palearctic species of hoverfly.
Description External images For terms see Morphology of Diptera The 3rd segment of the antenna is rounded-oval (length barely exceeding width). The hypopygium is clothed with white hairs. Abdomen blackish bronzy in male with fairly broad reddish yellow bands on tergite 3; in female bronzy with black dots over greater part of tergite 3 (latter character distinguishing female of N. geniculata Mg. from female of N. aenea Mg.). Surstyli elongated-oval. Body length 4.0 to 5.0 mm. Van der Goot, V.S. (1981) De zweefvliegen van Noordwest - Europa en Europees Rusland, in het bijzonder van de Benelux. KNNV, Uitgave no.32: 275pp. Amsterdam. Bei-Bienko, G.Y. & Steyskal, G.C. (1988a) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Part I. Amerind Publishing Co., New Delhi. .Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendumCoe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London. pdf
Distribution Scandinavia South to central France. Ireland East through Central Europe, European Russia to Siberia.Fauna EuropaeaPeck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) Catalogue of Palaearctic Diptera, 8: 11-230. Akad.Kiado, Budapest.
Habitat Wetlands- acid fen, calcareous fen aapamire and raised bog.
Biology Flies low among vegetation in May to September Flowers visited include white umbellifers, Alisma plantago-aquatica, Baldellia ranunculoides, Caltha palustris, Potentilla erecta, Ranunculus.
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