Leaf-miner: The first instar larva tends to make a U-shaped mine, whereas later
larvae make irregular mines. Final instar larvae spin the leaves
together and feed in a silken tube amongst the seeds (British
larvae make a short, spiralled corridor typically U-shaped). This
stage is followed by an irregular, sometimes branching, greenish-white
blotch. In their final stage the larva lives free in a silken tunnel
among the leaves (Bladmineerders van Europa).
mine is also illustrated in UKMoths.
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).
The larva is illustrated in British
and Bladmineerders van Europa.
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
Pupation in a cocoon of sand grains and detritus (British
The adult is illustrated in UKMoths.
genitalia are illustrated by the Lepidoptera Dissection Group.
Hosts in Great Britain & Ireland:
of year - larvae: September - October (British
of year - adults: July and August (UKMoths).
in Great Britain & Ireland: One of the commonest
gelechid moths on saltings in the British Isles (UKMoths)
including Anglesey (VC52), Caernarvonshire (VC49), Denbighshire (VC50), East Ross (VC106), East Suffolk (VC25), Glamorganshire (VC41), Kincardineshire (VC91), Monmouthshire (VC35), North Aberdeenshire (VC93), North Essex (VC19), North Somerset (VC6), South Aberdeenshire (VC92), Surrey and Westmorland (NBN
Gateway). It can easily be confused with several other Scrobipalpa
species, so examination of the genitalia is usually necessary, though
even then they can be difficult to determine (UKMoths).
See also British
leafminers distribution map.
recorded in the Republic of Ireland and Northern Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See also Ireland's NBDC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Austria,
Belgium, Czech Republic, Danish mainland, Estonia, Finland, French
mainland, Germany, Hungary, Latvia, Norwegian mainland, Poland,
Romania, Russia - South, Slovakia, Spanish mainland, Sweden, The
Netherlands and Ukraine (Karsholt and van Nieukerken in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: