Young larvae make small, full depth blotch mines, almost without
frass. Older larva live externally on the plant under a light web
(Bladmineerders van Europa).
forms a small blotch mine and may later feed in a slight web. In
coastal areas may continue mining throughout the larval stage (British
Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).
Head black; pothoracic shield also, divided by a light line. Body
translucent yellow-green with a darker dorsal line and black or
brown spots. The black head distinguishes the larvae from those
of E. chaerophyllella (see Hering, 1957a) (Bladmineerders van Europa). The larvae are also described by Sterling (2004).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The adult is illustrated in UKMoths. The male
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: May-June; August-September (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including East Cornwall (VC2),
Glamorganshire (VC41), Isle Of Wight and West Cornwall (NBN
Gateway). Exsiitng records seem to be confined to the south-west, on or near the coast, despite the kown host plants having a much wider distribution.
Also recorded from the Republic of Ireland (Ireland's NBDC interactive map).
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Albania,
Austria, Azores, Bosnia and Herzegovina, Bulgaria, Canary Is., Corsica,
Croatia, ? Czech Republic, Estonia, French mainland, Germany, Greek
mainland, Hungary, Italian mainland, Macedonia, Madeira, Norwegian
mainland, Portuguese mainland, Romania, Sardinia, Sicily, Spanish
mainland, Switzerland and Yugoslavia (Karsholt and van Nieukerken
in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: