Coremacera marginata (Fabricius, 1775)

Khaghaninia, S., Kazerani, F. & Vala, Jean-Claude, 2018, New Data About Snail-Killing Flies (Diptera, Sciomyzidae) In Iran, Vestnik Zoologii 52 (1), pp. 21-30 : 23

Coremacera marginata (Fabricius, 1775)

Material examined: Iran: East Azerbaijan Province, Chichakli (grassland habitat) [38°39´N, 46°31´E, 2140 m], 5.08.2009, 1 ♀ ; Ajabshir (grove habitat) [37°31´N, 46°07´E, 1660 m], 10.07.2009, 1 ♀ ; Qaradagh (forest habitat) [38°51´N, 46°52´E, 1770 m], 14.06.2010, 2 ♂, 5 ♀ ; Horand (grassland habitat) [38°59´N, 47°22´E, 1370 m], 14.07.2010, 2 ♂, 2 ♀ ; Kandovan (moist grassland habitat) [37°45´N, 46°18´E, 2840 m], 20.05.2010, 3 ♂, 7 ♀ , [37°46´N, 46°16´E, 2500 m], 15.07.2010, 2 ♂, 1 ♀, [37°44´N, 46°19´E, 3005 m], 6.06.2011, 6 ♂, 5 ♀; Isperekhan (dry grassland habitat) [37°46´N, 46°24´E, 2504 m], 10.08.2012, 1 ♂, 1 ♀ ; Qurigol (lagoon habitat) [37°54´N 46°42´E, 1920 m], 8.06.2012, 2 ♂, 1 ♀ ; Qurigol (lagoon habitat) [37°54.975´N, 46°41,120´E, 1943 m], 9.07.2012, 1 ♂, 2 ♀ (Khaghaninia leg.) .

D i s t r i b u t i o n. Palaearctic: from Ireland to Spain, France, European parts of Russia and Georgia. Middle East: Turkey, Armenia, Azerbaidjan. Iran: Rozkošný (1987); Seddighi Sadr, Mohammadzade Namin (2016).

Biology. Based on Knutson (1973) laboratory studies; larvae are predator of a range of terrestrial snails ( Cochlicopa lubrica , C. minima , Discus rotundatus , Helicella itala , H. caperata , H. virgata, Eulota fruticum, Hygromia hispida and Oxychilus spp ), then became saprophagous on dead snail host. Knutson (1973) described all larval stages and stated that puparium is formed outside the host snail, and represents the overwintering stage. This species is strictly univoltine (Knutson, 1973; Gaponov, 2016).