The larvae of the fly Agromyza albitarsis mine the leaves of Aspen, hybrid Black Poplar, other poplars and willows, forming a large greenish blotch mine which turns brown.

See the National Agromyzidae Recording Scheme website for further details of the mine, puparium and adult insect

The leaf-mines of the moth Leucoptera sinuella and beetle Zeugophora spp. are similar but can be separated by examining the larvae.

ref. Warrington, B.P. (2023). Agromyza albitarsis. Accessed at https://agromyzidae.co.uk/species/agromyzidae/agromyzinae/agromyza/agromyza-albitarsis-meigen-1830/  on 07/12/2023

Leaf-mine Adult

Provide backlit photographs of the whole leaf-mine in the leaf, and the larva, and note the host plant. 

Where the host Poplars and Willows occur.

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.

Nationally Scarce B.

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

Status in Leicestershire and Rutland not known.

http://www.leafmines.co.uk/html/Diptera/A.albitarsis.htm

https://bladmineerders.nl/parasites/animalia/arthropoda/insecta/diptera/brachycera/agromyzidae/agromyzinae/agromyza/agromyza-albitarsis/