The larva feeds in the stems and also makes blotch mines (as shown) as it passes from leaf to leaf. The leaves are lightly spun together as it progresses (British
The larvae make large blotches in the lower leaves. They regularly
move from one leaf to another (often resting outside their mine)
and in doing so create a loose spinnng around the leaves. Pupation
outside the mine (Bladmineerders van Europa).
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).
Whitish with three yellow, later red, lines; prothoracic shield
with black markings (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The adult is not illustrated in UKMoths (check for update). The female
genitalia, but not the male genitalia (check for update), are illustrated by the Lepidoptera Dissection Group.
References to Gnaphalium are erroneous (Satller, 1986a) (Bladmineerders van Europa).
Hosts in Great Britain & Ireland:
of year - larvae:
July to September (British
leafminers). June to August (Bladmineerders van Europa).
of year - adults: Currently unknown.
in Great Britain & Ireland: Britain including North Ebudes (VC104),
and South Aberdeen (NBN
recorded in the Republic of Ireland (Karsholt and van Nieukerken
in Fauna Europaea). See NDBC interactive map.
NBN Grid Map:
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elsewhere: Widespread in continental Europe including Austria,
Belarus, Finland, French mainland, ? Germany, ? Hungary, Latvia,
Lithuania, Norwegian mainland, Romania, Russia - North and South,
Slovakia, Slovenia, Sweden and Switzerland (Karsholt and van Nieukerken
in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.