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Phytobia carbonaria (Zetterstedt, 1848) [Diptera: Agromyzidae] Agromyza carbonaria Zetterstedt, 1848. Dipt. Scand. 7: 2739. Dizygomyza (Dendromyza) latigenis Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 28. Phytobia carbonaria (Zetterstedt, 1848); Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 40 (fig. 128), 44, 119. Phytobia carbonaria (Zetterstedt, 1848); Spencer, 1976. Fauna ent. Scand. 5(1): 153-5, figs 278-80. Phytobia carbonaria (Zetterstedt, 1848); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 102, 106 (fig. 378).

Stem-borer: Larva at first feeds upwards in the previous year's wood and later turns to feed downwards sometimes penetrating the root. Pupation in the ground (Spencer, 1976: 154). Larva: The larval mouth-parts have one strong and one smaller tooth and a strongly chitinised area behind, the lower arm of the cephalo-pharyngeal skeleton is conspicuously short (Spencer, 1976: 153, 154 (fig. 279)). The posterior spiracular processes are closely adjoiningg, each with three minute pores and there is a single pointed protuberance above the anus (Spencer, 1976: 154 (fig. 280)). Puparium: Reddish-brown (Spencer, 1976: 154). Hosts in Britain: Rosaceae       Crataegus     Spencer, 1972b: 119 Malus     Spencer, 1972b: 119 Hosts elsewhere: Rosaceae       Crataegus     Spencer, 1976: 153 Crataegus     Spencer, 1990: 106 Malus     Spencer, 1976: 153 Malus     Spencer, 1990: 106 Time of year - larvae: Oviposition normally takes place in young twigs at the end of May or early June; feeding continues until late August or September (Spencer, 1976: 154). Time of year - adults: Unknown. Distribution in Britain: Herts (Felden), Cambridge (Kirtling), Cornwall (Truro) and Dunbarton (Bonhill) (Spencer, 1972b: 44). Distribution elsewhere: Europe including Austria, Denmark, Norway (Spencer, 1976: 153), Belgium, Hungary, Poland, Spanish mainland and The Netherlands (Martinez in Fauna Europaea). Parasitoids: Unknown.

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Last updated 18-Aug-2008  Brian Pitkin