Twig-miner: Forms an inflated mine in the green bark of a twig, 15 - 25 mm long.
The mine turns brown/grey and is found near to the end of a twig,
often on a small plant (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).
Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).
The cremaster is illustrated in British
The adult is illustrated in UKMoths.
The male genitalia, but not the female genitalia (check for update), are illustrated by the Lepidoptera Dissection
Hosts in Great Britain & Ireland:
elsewhere: Currently unknown.
of year - larvae: September - May (British
of year - adults: The adult moths occur from late May to July
and are most easily found by tapping bushes of the foodplant (UKMoths).
in Great Britain & Ireland: Although distributed fairly
widely across much of Britain (UKMoths)
including Denbighshire (VC50), East Kent (VC15), East Ross (VC106), East Suffolk (VC25), Elgin,
Glamorganshire (VC41), Kincardineshire (VC91), North Aberdeenshire (VC93), South Aberdeenshire (VC92), South Hampshire (VC11),
Staffordshire (VC39), West Gloucestershire (VC34), West Norfolk (VC28), West Suffolk (VC26) and Worcestershire (VC37) (NBN
See also British
leafminers distribution map.
is a species not easily encountered. Other members of the genus
can be located by their leafmines, but the twig mines are very hard
to find (UKMoths).
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 Belgium,
Czech Republic, Danish mainland, French mainland, Germany, Italian
mainland, Poland, Portuguese mainland, Russia - Central, Slovakia,
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: