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Pegomya
bicolor (Wiedemann, 1817) Anthomyia
bicolor Wiedemann, 1817. Zool. Mag., Kiel 1:
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Leaf-miner: Large upper side blotch or blister mine, which can start with a short corridor. In small leaves the mine can be full depth in places. Often several larvae in a mine; frass irregularly scattered in large lumps. Pupation external. The mine is illustrated in British Leafminers. Large blotch, theoretically upper-surface, but often virtually full depth, often preceded by a short, broad corridor. Usually several larvae in a mine. The larvae can leave their mine and make a new one elsewhere. At the start of the first mine a small group of oval, whitish, egg shells. Pupation outside the mine (Bladmineerders van Europa). Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall. Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples). The puparium is described by Stork (1936). Comments: Ackland in Chandler (1978) did not indicate whether his host records were British or Foreign and are therefore tentatively included under 'Hosts in Britain' and 'Hosts elsewhere', as is the record of Pitkin & Plant, which was previously assumed to be British. Hosts in Great Britain and Ireland:
Hosts elsewhere: Time of year - mines: June-July. Time of year - adults: August-September. Distribution in Great Britain and Ireland: Widespread in Britain including Inner Hebrides (Isle of Coll) (Bland, 1992), Warwickshire (Coventry and Sutton Park) (Robbins, 1991); Anglesey, Berkshire, Breconshire, Buckinghamshire, Caernarvonshire, Cambridgeshire, Cardiganshire, Cheshire, Cumberland, Denbighshire, Dorset, East Gloucestershire, East Kent, East Norfolk, Easterness, Glamorgan, Herefordshire, Hertfordshire, Huntindonshire, Leicestershire, Merionethshire, Middlesex, Monmouthshire, North Devon, North Hampshire, North Wiltshire, Orkney, Pembrokeshire, Radnorshire, Shropshire, Souh Devon, South Essex, South Hampshire, South Lancashire, South-west Yorkshire, Stafford, Surrey, West Cornwall, West Gloucestershire, West Kent, West Suffolk, West Sussex, Westmorland and Shetland (NBN Atlas). Also recorded in the Republic of Ireland (Michelsen in Fauna Europaea). Distribution elsewhere: Widespread in continental Europe including The Netherlands, Belgium (Gosseries and Ackland, 1991; de Meijere, 1939), Andorra, Austria, ? Bulgaria, Corsica, Crete, Cyprus, Czech Republic, Denmark, Faroe Islands, Finland, French mainland, Germany, Greek mainland, Hungary, Iceland, Italian mainland, Lithuania, Madeira, Norwegian mainland, Poland, Romania, Russia - Central, North and Northwest, Sicily, Slovakia, Spanish mainland, Sweden and Switzerland (Michelsen in Fauna Europaea). Also recorded in Morocco, Algeria, Tunisia, Syria, Israel, Korea, China and Japan. NBN Atlas links to known host species: British and Irish Parasitoids in Britain and elsewhere:
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| External links: | Search the internet: |
| Biodiversity Heritage Library Bladmineerders van Europa British leafminers Encyclopedia of Life Fauna Europaea NBN Atlas NHM UK Checklist |
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| Last updated 10-Jul-2019 Brian Pitkin |  |
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