Cheilosia psilophthalma is a Palearctic hoverfly closely related and very similar to Cheilosia latigenis, Cheilosia mutabilis and Cheilosia urbana .Prokhorov, A., Popov, G. and Zaika, M 2018 New Records of Hoverflies (Diptera, Syrphidae) from Ukraine. I. Milesiini and Rhingiini Vestnik Zoologii, 2018, Vol.52(1), pp.13-20 [New Records of Hoverflies (Diptera, Syrphidae) from Ukraine. I. Milesiini and Rhingiini Vestnik Zoologii, 2018, Vol.52(1), pp.13-20 pdfSpeight, M.C.D. (1996) Cheilosia psilophthalma and Odinia boletina: insects new to Ireland and Sapromyza sexpunctata confirmed as an Irish species (Diptera: Syrphidae, Odiniidae and Lauxaniidae). Ir.nat.J., 25: 178-182.Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendumVan 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. It is a rare and little known species recorded from Scandinavia, Ireland, Britain, France, Poland, Switzerland, Greece, Montenegro, Serbia, Ukraine and European Russia.Fauna Europaea Flowers visited include Acer platanoides, Anemone nemorosa, Primula veris, Prunus spinosa and Salix spp. Cheilosia psilophthalma flies in April and May (July at higher altitudes). Open, grassy areas within sparse woodland and unimproved, montane subalpine grassland are preferred habitats. Larvae are recorded as developing in Hieracium pilosella and Hieracium caespitosum.Grosskopf, G., Smith, L.A. & Syrett, P. (2001) Host range of Cheilosia urbana (Meigen) and Cheilosia psilophthalma (Becker) (Diptera: Syrphidae), candidates for the biological control of invasive alien hawkweeds (Hieracium spp., Asteraceae) in New Zealand.Biological Control, 24: 7-19.
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