ood Plant: Fraxinus excelsior (Ash)

Mine: September-November

Pupa: The larva pupates externally - it may also pupate internally (Warrington (pers.comm)

Notes: Local in Britain, widespread and local in Europe. The mine is an upper surface linear mine, becoming a blotch, with two rows of frass at the start of the mine. The mine turns black as it ages. Pupariation occurs within the mine with the anterior spiracles projecting through the epidermis (Warrington, 2021) in the UK. In Europe pupariation has been found to occur both internally and externally.

Agromyzidae Recording Scheme Grade: 2

Data: 28.x.2013, Bocking, Braintree Essex, VC19

Image:© Stephen Rolls

References:
Hering, M (1957) - Bestimmungstabellen der Blattminen von Europa
Papp, L. and Cerný, M. 2016. Agromyzidae (Diptera) of Hungary. Volume 2. Phytomyzinae I.
Robbins, J (1990) - A Provisional Atlas of The Leaf Miners of Warwickshire.
Spencer, K A (1976) - The Agromyzidae of Fennoscandia and Denmark.
Spencer, K.A (1972) - "Diptera: Agromyzidae" Handbooks for the Identification of British Insects, Royal Entomological Society of London.
Warrington BP (2021) Sexual colour dimorphism and wing venation variation in the leaf-mining fly Aulagromyza heringii (Hendel) (Diptera, Agromyzidae) - Dipterist's Digest 28(1), 11-16