Leaf-miner: Oviposition in the underside of a vein, usually the midrib. Here
an oviposition scar remains. From this point a small full depth
blotch develops, of about one cm in diameter, at the leaf margin,
mostly in the leaf tip. The initial part of the mine, a quickly
broadening corridor, later often tears. Frass blackish-green, in
short thread fragments, pasted to the upper epidermis. Pupation
in the mine, in a globular cocoon, made from secretion that is produced
by the larva itself (Bladmineerders van Europa).
The mine is at the leaf margin and usually between two lobes (British
Larva: The larvae of beetles have a head capsule and chewing mouthparts with opposable mandibles and lack abdominal legs (see examples).
The larva is illustrated in British
leafminers and Bladmineerders van Europa.
Pupa: The pupae of beetles have visible head appendages, wings and legs which lie in sheaths (see examples).
Inside or outside the leaf (British
Hosts in Great Britain & Ireland:
of year - larvae: April - June (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in Britain including
Bedfordshire (VC30), Berkshire (VC22), Buckinghamshire (VC24), Cardiganshire (VC46), Carmarthenshire (VC44),
Cheshire (VC58), Cumberland (VC70), Derbyshire (VC57), Dorset (VC9), East Cornwall (VC2), East Gloucestershire (VC33),
East Kent (VC15), East Norfolk (VC27), East Ross (VC106), East Suffolk (VC25), Glamorganshire (VC41), Herefordshire (VC36),
Huntingdonshire (VC31), Leicestershire (VC55), Middlesex (VC21), Monmouthshire (VC35), Montgomeryshire (VC47),
North Essex (VC19), North Lincolnshire (VC54), North Wiltshire (VC7), North-east Yorkshire (VC62),
Northamptonshire (VC32), Nottinghamshire (VC56), Oxfordshire (VC23), Radnorshire (VC43), Shropshire (VC40),
South Hampshire (VC11), South Lincolnshire (VC53), South Wiltshire (VC8), Staffordshire (VC39),
Surrey (VC17), Warwickshire (VC38), West Cornwall (VC1), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26), West Sussex (VC13), Worcestershire (VC37) (NBN
recorded in the Republic of Ireland and Northern Ireland (Alonso-Zarazaga in Fauna Europaea) and in Ireland (InvertebrateIreland Online).
NBN Grid Map:
elsewhere: Widespread in continental Europe including Bulgaria,
Corsica, French mainland, Germany, Italian mainland, Moldova, Norwegian
mainland, Poland, Romania, Russia - Central and South, Sardinia,
Sicily, Slovakia, Sweden, Ukraine and Yugoslavia. Also recorded
in the Near East (Alonso-Zarazaga in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.