This fly's larvae mine the leaves of Dogwood. The long mines are found on the upper surface of the leaf. Frass in the mine is usually a broad dark-brown to blackish central band.

See the National Agromyzidae Recording Scheme webpage for this species for further details of puparium and adult insect.

ref.: Warrington, B.P. (2023).  Phytomyza agromyzina. Accessed at https://agromyzidae.co.uk/species/agromyzidae/phytomyzinae/phytomyza/ph… on 13/12/2023)

Leafmine Adult

Leafmine: Please provide a photograph and state the host plant.

Host plant: Cornus (Dogwood)

Click on the 'further details' link in the 'Description' section above.  Then click on the Phenology tab which will provide phenology details for both adult and larval stages.

Leafmines may be found from May to November.

Widespread and fairly frequent in Britain.

Warrington, B. P. 2022. A provisional review of the status of Agromyzidae in Great Britain & Northern Ireland

Fairly frequent in Leicestershire and Rutland.

http://www.leafmines.co.uk/html/Diptera/P.agromyzina.htm

https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/diptera/brachycera/agromyzidae/phytomyzinae/phytomyza/phytomyza-agromyzina/