Leaf
miner: Large glassy blotch, beginning as a short full depth corridor along
the leaf margin Mine in the tip of a leaf segment. The leaf tissue
around the mine often turning dark purple. Much, coarse, frass.
Pupation outside the mine (Bladmineerders van Europa).
The
mine is also illustrated in British
leafminers.
Larva:
The larvae of sawflies have a head capsule, chewing mouthparts with opposable mandibles, six thoracic legs and abdominal legs (although they may be reduced) (see examples).
The larva is illustrated in British
leafminers and Bladmineerders van Europa.
Pupa:
The pupae of sawflies have visible head appendages, wings and legs which lie in sheaths.
Adult:
The adult is illustrated in ECatSym - Electronic World Catalog of Symphyta.
Hosts in Great Britain and Ireland:
Hosts
elsewhere:
Time
of year - larvae: June - July (British
leafminers).
Time
of year - adults: Currently unknown.
Comments:
Full synonymy and references are listed in ECatSym - Electronic World Catalog of Symphyta.
Distribution
in Great Britain and Ireland: Britain including Bedfordshire,
Berkshire, Cambridgeshire, North Wiltshire and Surrey (NBN
Atlas).
Also
recorded in the Republic of Ireland (Fauna Europaea).
Distribution
elsewhere: Widespread in continental Europe including Austria,
Belgium, Croatia, Czech Republic, Estonia, Finland, French mainland,
Germany, Hungary, Poland, Romania, Sweden and Switzerland (Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere:
Currently unknown.
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