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

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Parornix fagivora (Frey, 1861)
[Lepidoptera: Gracillariidae]

Beech Slender


Ornix fagivora Frey, 1861. Linn. Ent. 15: 19.
Parornix fagivora
(Frey, 1861).


Leaf-miner: Early mine a blotch with upper epidermis turning brown. Then a fold at the leaf edge or tip of the leaf. Often two or three folds can be seen (British leafminers).

Initially a small lower-surface epidermal corridor with reddish brown frass, a small rectangular full depth blotch with black frass later. Lower, later also the upper, epidermis brown. The larva deposits only little silk in the mine, that therefore remains practically flat. Finally the larva leaves the mine and continues living free under a folded leaf margin or leaf tip (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).

In folded leaf-edge, often on a Fallén leaf (British leafminers).

Adult: The adult is not illustrated in UKMoths (check for update). The male and female genitalia are illustrated by the Lepidoptera Dissection Group.

Hosts in Great Britain & Ireland:

Fagaceae        
Fagus       British leafminers
Fagus sylvatica Beech British Wild Flowers by John Somerville et al. Pitkin & Plant

Hosts elsewhere:

Fagaceae        
Fagus sylvatica Beech British Wild Flowers by John Somerville et al. Bladmineerders van Europa
Fagus sylvatica subsp. orientalis     Bladmineerders van Europa

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

Time of year - adults: Currently unknown.

Distribution in Great Britain & Ireland: Southern England and Wales including Bedfordshire (VC30), Buckinghamshire (VC24), Carmarthenshire (VC44), East Kent (VC15), East Norfolk (VC27), East Suffolk (VC25), Glamorganshire (VC41), North Somerset (VC6), South Hampshire (VC11), South Wiltshire (VC8), West Norfolk (VC28) and West Suffolk (VC26) (NBN Gateway).

See also British leafminers distribution map.

NBN Grid Map:

NBN Grid Map

Parornix fagivora
NBN Grid Map : NBN Terms and Conditions

Maps are only displayed if the NBN server is active. N.B. Only publicly available records, if any, are shown by default

Distribution elsewhere: Widespread in continental Europe including Albania, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Danish mainland, French mainland, Germany, Hungary, Italian mainland, Macedonia, Poland, Romania, Russia - South, Slovakia, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Fagus sylvatica

British and Irish Parasitoids in Britain and elsewhere:

Ichneumonoidea  
Pholetesor bicolor (Nees, 1834) Braconidae: Microgastrinae
Pholetesor circumscriptus (Nees, 1834) Braconidae: Microgastrinae
Rhysipolis hariolator (Haliday, 1836) Braconidae: Rhysipolinae
Gelis areator (Panzer, 1804) Ichneumonidae: Cryptinae


External links: Search the internet:
Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Gateway
NHM UK Checklist
UKMoths
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Last updated 17-Jun-2016  Brian Pitkin Top of page