The larva makes a large number of untidy full depth mines. The mines
contain hardly or no frass. The opening made by the larva in the
underside of the leaf is irregular roundish, sometimes more of a
slit, large in proportion to the size of the mine, and usually positioned
at the side of the mine. The larva mines until just before the pupation,
that takes place externally (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).
Dull flesh-coloured with two yellow white dorsal lines; head black,
prothoracic plate with dark marking (Bladmineerders van Europa).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The adult is illustrated in UKMoths and the Encyclopedia
of Life. The genitalia are not illustrated by the Lepidoptera
Dissection Group (check for update).
Hosts in Great Britain & Ireland:
of year - larvae:
July till May (Bladmineerders van Europa).
of year - adults: The day-flying adults are to be found in June
and July (UKMoths).
in Great Britain & Ireland: Locally distributed on calcareous
soil, inhabiting grassland, this is a nationally scarce species
with a small number of populations ranging from Wilts to Kent (UKMoths)
including East Kent (VC15), East Sussex (VC14), North Hampshire (VC12), North Wiltshire (VC7),
South Wiltshire (VC8), West Gloucestershire (VC34) and West Sussex (VC26) (NBN
Gateway, as Adscita globulariae).
NBN Grid Map:
Jordanita globulariae, as Adscita globulariae
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elsewhere: Widespread in continental Europe including Albania,
Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria,
Croatia, Czech Republic, French mainland, Germany, Greek mainland,
Hungary, Italian mainland, Luxembourg, Macedonia, Poland, ? Portuguese
mainland, Romania, Russia - Central, East and South, Slovakia, Slovenia,
Spanish mainland, Switzerland, Ukraine 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: