The leaf and stem mines of British flies and other insects

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds


Phyllonorycter coryli (Nicelli, 1851)
[Lepidoptera: Gracillariidae]

Nut Leaf Blister Moth

Lithocolletis coryli Nicelli, 1851. Stett. ent. Zeitg. 12: 36.
Phyllonorycter coryli
(Nicelli, 1851).

Leaf-miner: The mine is upper side, over veins. Silvery, with brown speckling, later contracting to cause leaf to fold upwards. There may be several mines on each leaf (British leafminers).

Upper-surface silvery tentiform mine. For some time the mine remains quite flat, and appears as a blotch mine. In the final stage the leaf is strongly contracted, however. Not infrequently several mines in a leaf. Pupa in a cocoon in a corner of the mine, frass heaped in the opposite corner (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).

The larva is illustrated in Bladmineerders van Europa.

Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).

Cremaster has four hooked precesses - the outer pair being broader than the inner ones (British leafminers). The pupa is illustrated in Bladmineerders van Europa.

Adult: The adult is illustrated in UKMoths. The species is included in

Hosts in Great Britain and Ireland:

Corylus       British leafminers
Corylus avellana Hazel British Wild Flowers by John Somerville et al. Pitkin & Plant
Corylus avellana Hazel British Wild Flowers by John Somerville et al. UKMoths

Hosts elsewhere:

Corylus avellana Hazel British Wild Flowers by John Somerville et al. Belgian Lepidoptera
Corylus avellana Hazel British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Corylus colurna Turkish Hazel   Bladmineerders van Europa
Corylus maxima Filbert   Bladmineerders van Europa
Ostrya carpinifolia     Bladmineerders van Europa

Time of year - larvae: July, September - October (British leafminers).

Time of year - adults: Being bivoltine, the adults are on the wing in May and again in August (UKMoths).

Distribution in Great Britain and Ireland: A common moth throughout much of the British Isles (UKMoths) including Anglesey, Bedfordshire, Breconshire, Buckinghamshire, Caernarvonshire, Cambridgeshire, Carmarthenshire, Cheshire, Denbighshire, Derbyshire, Dorset, Dumfriesshire, Dunbartonshire, Durham, East Cornwall, East Norfolk, East Gloucestershire, East Kent, East Norfolk, East Ross, East Suffolk, East Sutherland, Easterness, Flintshire, Glamorgan, Haddington, Herefordshire, Hertfordshire, Huntingdonshire, Isle of Wight, Kincardineshire, Kirkcudbrightshire, Leicestershire, Main Argyll, Merionethshire, Mid-west Yorkshire, Middlesex, Monmouthshire, Montgomeryshire, North Aberdeenshire, North Ebudes, North Essex, North Hampshire, North Somerset, North Wiltshire, North-east Yorkshire, Northamptonshire, Nottinghamshire, Pembrokeshire, Radnorshire, Shropshire, South Aberdeenshire, South Devon, South Hampshire, South Somerset, South Northumberland, South Wiltshire, Stafford, Surrey, West Cornwall, West Gloucestershire, West Lancashire, West Norfolk, West Suffolk, Westmorland, Wigtownshire and Worcestershire (NBN Atlas).

See also British leafminers distribution map.

Also recorded in the Republic of Ireland and Northern Ireland (Fauna Europaea and National Biodiversity Data Centre Map).

Distribution elsewhere: Widespread in continental Europe including Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Republic of Moldova, Norwegian mainland, Poland, Romania, Russia - Central, Northwest and South, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands, Ukraine. Also recorded in Near East (Fauna Europaea).

NBN Atlas links to known host species:

Corylus avellana, Corylus colurna, Corylus maxima, Ostrya carpinifolia

British and Irish Parasitoids in Britain and elsewhere:

Pediobius alcaeus (Walker, 1839) Eulophidae: Entedoninae
Cirrospilus lyncus Walker, 1841 Eulophidae: Eulophinae
Sympiesis gordius (Walker, 1839) Eulophidae: Eulophinae
Ichneumonoidea - Links to species no longer available  
Coloneura stylata Förster, 1862 Braconidae: Alysiinae
Pholetesor circumscriptus (Nees, 1834) Braconidae: Microgastrinae
Rhysipolis hariolator (Haliday, 1836) Braconidae: Rhysipolinae
Scambus inanis (Schrank, 1802) Ichneumonidae: Pimplinae

External links: Search the internet:
Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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Last updated 11-Jul-2019  Brian Pitkin Top of page