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Phytobia cambii (Hendel, 1931) [Diptera: Agromyzidae]. Dizygomyza (Dendromyza) cambii Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 24. Dizygomyza barnesi (Hendel, 1933). Ann. appl. Biol. 20: 509. Dendromyza betulae Kangas, 1935. Commentat. Inst. for. fenn. 22: 11. [Synonymised by von Tschirnhaus, 1992] Dendromyza tremulae Kangas, 1949. Annls ent. fenn. 14(1948) (Suppl.): 113. [Synonymised by Spencer, 1976: 151] Phytobia cambii (Hendel, 1931); Spencer, 1972. Handbk ident. Br. Ins. 10(5g): 10, 40 (fig. 129), 44, 120. Phytobia cambii (Hendel, 1931); Spencer, 1976. Fauna ent. Scand. 5(1): 151-3, figs 273-7. Phytobia cambii (Hendel, 1931); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 61, 79, 80 (figs 293-4), 93.

Stem borer: Larva boring in cambium of stem, pupation in the ground (Spencer, 1972: 44). Larva: The larva is described by Dempewolf (2001: 95). The larva is unusually long and slender and can attain a length of 188 mm when feeding but on removal from the confinements of its boring it contracts and becomes more cylindrical. The mouth hooks have one large tooth and on the opposite side a single smaller one (Spencer, 1976: 152 (figs 276-7)). The posterior spiracles have 3 well-defined bulbs. Puparium: Dark reddish-brown and up to 5 mm long (Spencer, 1976: 152). Hosts in Britain: Salicaceae       Populus tremula Aspen Spencer, 1972: 120 Salix     Spencer, 1972: 120 Hosts elsewhere: Salicaceae       Alnus     von Tschirnhaus, 1992 Betula     von Tschirnhaus, 1992 Betula pendula Silver Birch Dempewolf, 2001: 95 Carpinus     von Tschirnhaus, 1992 Populus     Spencer, 1976: 131 Populus     Spencer, 1990: 93 Salix     Spencer, 1976: 131 Salix     Spencer, 1990: 93 Time of year - larvae: February-March. Time of year - adults: May-July. Distribution in Great Britain & Ireland: Widespread. Kent (Dartford), Hants (Beaulieu and New Forest), Herts (Batford, Harpenden (Barnes), Suffolk (Barton Mills), Inverness (Nethy Bridge and Loch Eilich), Nairn (Spencer, 1972: 44); Peebles (Craigdilly) (Bland, 1994c: 82; as betulae), East Sutherland and Stafford (NBN Gateway distribution map - DF, HBRG and NE). Also recorded in Ireland (Spencer, 1972: 44). NBN Grid map: Distribution elsewhere: Widespread in Europe including Austria, Finland, France and The Netherlands (Spencer, 1976: 131), Germany (Dempewolf, 2001: 95; von Tschirnhaus, 1992), Belgium, Denmark, Hungary, Latvia, Lithuania, Poland and Sweden (Martinez in Fauna Europaea). NBN interactive distribution maps of known host species in Britain and elsewhere: Populus tremula, Betula pendula Parasitoids in Britain and elsewhere: Unknown.

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Last updated 09-Jan-2010  Brian Pitkin