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Phytomyza conyzae Hendel, 1920 [Diptera: Agromyzidae] Phytomyza conyzae Hendel, 1920. Arch. Naturgesch. 84A(7) (1918): 152. Phytomyza conyzae Hendel, 1920; Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 384. Phytomyza conyzae Hendel, 1920; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 70 (fig. 226), 73, 113, 114. Phytomyza conyzae Hendel, 1920; Spencer, 1976. Fauna ent. Scand. 5(1): 406-8, figs 711-712. Phytomyza conyzae Hendel, 1920; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 271, 272 (fig. 1032) 273, 283, 305, 309.

Leaf-mine: An irregularly linear mine which can be both on the upper and lower leaf surface. Pupation takes place either at the end of the mine in an exit slit cut in the leaf or on the ground (Spencer, 1972b: 70 (fig. 226), 73; Spencer, 1976: 407 (fig. 712), 408). The mine is illustrated in British leafminers and Nederlandse bladmineerders. Mine of Phytomyza conyzae on Pulicaria dysenterica. Image: Willem Ellis (Source: Nederlandse bladmineerders) Larva: The larva is described by de Meijere (1926). Puparium: Black or dark brown; posterior spiracles each having 17-19 bulbs Spencer, 1976: 408). Hosts in Britain: Apiaceae       Inula     Mines in BMNH Inula     Robbins, 1983: 25 Inula conyzae Ploughman's-spikenard Mines in BMNH Inula conyzae Ploughman's-spikenard Spencer, 1972b: 113 Inula magnifica Giant Fleabane Mines in BMNH Pulicaria     Robbins, 1991: 111 Pulicaria dysenterica Common Fleabane Mines in BMNH Pulicaria dysenterica Common Fleabane Spencer, 1972b: 114 Hosts elsewhere: Apiaceae       Arnica     Spencer, 1990: 309 Arnica montana   Spencer, 1976: 407 Arnica montana   Nederlandse bladmineerders Inula     Spencer, 1976: 407 Inula     Spencer, 1990: 273 Inula conyzae Ploughman's-spikenard Nederlandse bladmineerders Pallenis     Spencer, 1990: 273 Pulicaria     Spencer, 1990: 273 Pulicaria dysenterica Common Fleabane Spencer, 1976: 407 Pulicaria dysenterica Common Fleabane Nederlandse bladmineerders Telekia     Spencer, 1990: 273 Time of year - mines: June-October. Time of year - adults: Unknown. Distribution in Britain: Widespread in south, also Denbigh (nr Wrexham) (Spencer, 1972b: 73), Warwick (Hawkesbury) (Robbins, 1991: 111), East Gloucester, South Somerset, South-west York and Surrey (NBN Gateway distribution map - BRERC and NE). Also recorded in the Republic of Ireland: Co. Wexford (Rosslare) (Spencer, 1972b: 73). Distribution elsewhere: Widespread in Europe including Denmark and Sweden (Spencer, 1976: 407), The Netherlands (Nederlandse bladmineerders), Belgium (Scheirs, de Bruyn & Verdyck, 1993), Germany (Spencer, 1976: 570), Albania, Austria, Balearic Is., Corsica, Czech Republic, Dodecanese Is., European Turkey, French mainland, Italian mainland, Lithuania, Malta, Poland, Portuguese mainland, Romania, Sardinia, Sicily, Spanish mainland and Yugoslavia (Martinez in Fauna Europaea). Particularly common in the Mediterranean area (Spencer, 1976: 407). Parasitoids: Chrysocharis entedonoides (Walker, 1872) Hymenoptera: Eulophidae Chrysocharis pubicornis (Zetterstedt, 1838) Hymenoptera: Eulophidae Seladerma diffine (Walker) Hymenoptera: Pteromalidae

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Last updated 18-Aug-2008  Brian Pitkin