distinctive mine with a short linear section at the beginning, then
winding and forming a secondary blotch and finally a short straighter
end section. Pupation internal or more normally the puparium falls
to the ground (Spencer, 1972b:
96 (fig. 96), 97; Spencer, 1976:
324 (fig. 738).
mine begins as a narrow corridor, with the frass in fine grains
along the sides. In the next section the corridor is much wider
and more closely wound, forming a secondary blotch; the frass now
forms pearl chains. In the final section the corridor is again narrower,
rather straight and especially interparenchymatous, greenish in
transparency. Pupation outside the mine, but the puparium often
sticks to the leaf (Bladmineerders van Europa).
A short upper surface gallery, then winding to form a blotch; finally becoming linear again- the last section being shallow and looking green (British
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 illustrated in Bladmineerders van Europa.
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).
Brown (Spencer, 1976: 424).
The puparium is illustrated in Bladmineerders van Europa.
Hosts in Great Britain & Ireland:
of year - mines: May-August, October-November.
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread. Surrey (Mickleham),
London (Hampstead), Norfolk (Norwich), Yorkshire (Croft area), Midlothian
(Braid Hills) (Spencer, 1972b:
97), Hampshire (Crookham Village) (British
leafminers), Bedford (Sandy) (British
leafminers), Warwickshire (Dosthill, Hampton Wood and Ufton)
(Robbins, 1991: 103); Cambridgeshire (VC29),
East Kent (VC15), East Suffolk (VC25), Herefordshire (VC36), Hertfordshire (VC20), Middlesex (VC21),
South Essex (VC18), South Wiltshire (VC8), South-east Yorkshire (VC61), Surrey (VC17), West Norfolk (VC28), and Worcestershire (VC37) (NBN
recorded in the Republic of Ireland: Co. Clare (Poulavallen) (Spencer, 1972b: 97).
NBN Grid Map:
elsewhere: Widespread in western and central Europe including
Finland, Sweden (Spencer, 1976:
424), The Netherlands (Bladmineerders van Europa), Belgium (de
Bruyn and von Tschirnhaus, 1991), Germany (Spencer,
1976: 570), Czech Republic, Hungary, Italian mainland, Lithuania,
Poland, Slovakia and Switzerland (Martinez in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere:
orbicularis (Nees, 1834)
viridis (Nees, 1934)
maculata Walker, 1833
areolaris (Nees, 1811)
confinis Ruthe, 1859
laevipectus Thomson, 1895
maculipes Thomson, 1895
rufiventris (Nees, 1812)
levis Wesmael, 1835
|Phaedrotoma exigua Wesmael, 1835