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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Eriocrania sangii (Wood, 1891)
[Lepidoptera: Eriocraniidae]

Large Birch Purple


Micropteryx sangii Wood, 1891. Ent. mon. Mag. 27: 100
Eriocrania sangii
(Wood, 1891).


Leaf-miner: A blotch with large dark grey larva - discarded grey larval skin visible in vacated mine. The mine starts by the edge of the leaf (British leafminers).

Large, white, primary, full depth blotch, following upon a very short corridor. The blotch begins adjacent to the leaf margin, expanding deeper into the leaf. Frass in striking, long threads. Pupation in the soil. Vacated mines shrivel and wither away; later in summer no a trace remains (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).

Dark grey and quite distinctive if the mined leaf is held up to the light (UKMoths).

The larva is also illustrated in Bladmineerders van Europa.

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

Adult: The adult is illustrated in UKMoths. The male and female genitalia are illustrated by the Lepidoptera Dissection Group.

Hosts in Great Britain & Ireland:

Betulaceae        
Betula       British leafminers
Betula       Pitkin & Plant
Betula       UKMoths

Hosts elsewhere:

Betulaceae        
Betula       Bladmineerders van Europa

Time of year - larvae: April - May (British leafminers).

Time of year - adults: The adults fly in March and April (UKMoths).

Distribution in Great Britain & Ireland: Although stated in the literature as local in Britain (MBGBI), renewed interest in this group in recent years has shown the species to be well distributed and quite common, especially in northern England (UKMoths) including Banffshire (VC94), Bedfordshire (VC30), Buckinghamshire (VC24), Derbyshire (VC57), East Suffolk (VC25), Glamorganshire (VC41), Herefordshire (VC36), Kincardineshire (VC91), North Aberdeenshire (VC93), North Somerset (VC6), Northamptonshire (VC32), Shropshire (VC40), South Aberdeenshire (VC92), South Hampshire (VC11), South Lancashire (VC59), South Wiltshire (VC8), Staffordshire (VC39), Surrey (VC17), West Gloucestershire (VC34), West Kent (VC16), West Norfolk (VC28), West Suffolk (VC26), Westmorland (VC69) and Worcestershire (VC37) (NBN Gateway).

See also British leafminers distribution map.

NBN Grid Map:

NBN Grid Map

Eriocrania sangii
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 Austria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Latvia, Norwegian mainland, Poland, Romania, Russia - North, Sweden, Switzerland and The Netherlands (Karsholt and van Nieukerken in Fauna Europaea).

NBN Interactive Grid Maps of known host species:

Host species unknown

British and Irish Parasitoids in Britain and elsewhere:

Chalcidoidea  
Cirrospilus diallus Walker, 1838 Eulophidae: Eulophinae
Ichneumonoidea  
Lathrolestes clypeatus (Zetterstedt, 1838) Ichneumonidae: Euryproctinae
Grypocentrus basalis Ruthe, 1855 Ichneumonidae: Tryphoniinae


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 21-Jul-2016  Brian Pitkin Top of page