quercus (Linnaeus, 1758)
[Coleoptera : Curculionidae]
quercus Linnaeus, 1758
Curculio saltatorulmi De Geer, 1775
Curculio viminalis Fabricius, 1775.
Curculio setosus Müller, 1776.
Curculio ulmi Goeze, 1777.
Curculio multidentatus Gmelin, 1790.
Curculio alni Herbst, 1795
Curculio monedula Herbst, 1795
Curculio depressus Marsham, 1802.
Orchestes quercus (Linnaeus, 1758).
Leaf-miner: Oviposition in the underside of the midrib or, more rarely, a thick
lateral vein. Here a conspicuous scar remains. Form this point a
corridor starts, first within the midrib, later running freely in
the leaf into the direction of the leaf tip, gradually widening.
In the end a large blotch is formed. Frass in thread fragments,
pasted to the upper epidermis. The mature larva, within the mine,
extrudes a liquid that hardens and forms a globular cocoon in which
the pupation takes place. Old mines mostly completely wither away,
but their former presence remains recognisable in the cleft leaf
tip, in combination with the old oviposition scar (Bladmineerders van Europa).
A gallery running from the mid-rib and developing into a full depth blotch at or towards the tip of the leaf (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).
Pupation inside the mine, in a spherical cocoon (British
Hosts in Great Britain & Ireland:
of year - larvae: Univoltine: early Summer (British
of year - adults: Currently unknown.
in Great Britain & Ireland: Widespread in Britain including
Ayrshire (VC74), Bedfordshire (VC30), Berkshire (VC22), Caernarvonshire (VC49), Cambridgeshire (VC29),
Cardiganshire (VC46), Carmarthenshire (VC44), Cumberland (VC70), Denbighshire (VC50), Derbyshire (VC57),
Dumfriesshire (VC72), East Gloucestershire (VC33), East Kent (VC15), East Norfolk (VC27), East Ross (VC106), East Suffolk (VC25), East Sussex (VC14), East Sutherland (VC107), Easterness (VC96), Flintshire (VC51),
Glamorganshire (VC41), Herefordshire (VC36), Hertfordshire (VC20), Isle of Man (VC71), Kirkudbrightshire (VC73),
Leicestershire (VC55), Merionethshire (VC48), Mid-west Yorkshire (VC64), Middlesex (VC21), Monmouthshire (VC35),
Montgomeryshire (VC47), North Ebudes (VC104), North Essex (VC19), North Lincolnshire (VC54),
North Somerset (VC6), North Wiltshire (VC7), Northamptonshire (VC32), Nottinghamshire (VC56),
Oxfordshire (VC23), Radnorshire (VC43), Shropshire (VC40), South Essex (VC18), South Hampshire (VC11),
South Lincolnshire (VC53), South Wiltshire (VC8), Staffordshire (VC39), Surrey (VC17), West Kent (VC16),
West Norfolk (VC28), and West Ross (VC105) (NBN
recorded in the Republic of Ireland and Northern
Ireland (Alonso-Zarazaga in Fauna Europaea) and in Ireland (InvertebrateIreland Online).
elsewhere: Widespread in continental Europe including Corsica,
French mainland, Germany, Italian mainland, Moldova, Poland, Romania,
Russia - Central and South, Sardinia, Sicily, Slovakia, Ukraine
and Yugoslavia. Also recorded in the Near East (Alonso-Zarazaga
in Fauna Europaea).
NBN Atlas links to known host species:
British Parasitoids in Britain and elsewhere: