cambii (Hendel, 1931)
(Dendromyza) cambii Hendel, 1931. Fliegen palaearkt. Reg.
Dizygomyza barnesi (Hendel, 1933). Ann. appl. Biol.
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:
Phytobia cambii (Hendel, 1931); Spencer, 1972b. 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.
boring in cambium of stem, pupation in the ground (Spencer, 1972b: 44).
Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.
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: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).
Dark reddish-brown and up to 5 mm long (Spencer,
Hosts in Great Britain & Ireland:
of year - larvae: February-March.
of year - adults: May-July.
in Great Britain & Ireland: Widespread in Britain including Kent (Dartford),
Hampshire (Beaulieu and New Forest), Hertfordshire (Batford, Harpenden
(Barnes), Suffolk (Barton Mills), Inverness (Nethy Bridge and Loch
Eilich), Nairn (Spencer, 1972b:
44); Peebles (Craigdilly) (Bland,
1994c: 82; as betulae); East Ross (VC106), Glamorganshire (VC41), Stafford
and Westmorland (NBN
recorded in Ireland (Spencer, 1972b: 44).
NBN Grid Map:
elsewhere: Widespread in continental 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 Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: