The larvae of the Agromyzid fly Phytomyza pimpinellae mine the leaves of Greater Burnet-saxifrage and Burnet-saxifrage producing a broad, relatively short, upper surface mine with conspicuous feeding lines of frass. 

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

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

Leafmine   Adult

Adult: Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.

Leafmine: Please provide a back-lit image of the leafmine showing the frass and also add a note of the host plant. Photograph the pupa or larva if present.

Host plants: Greater Burnet-saxifrage, Burnet Saxifrage

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 between March and September.

In Britain this species is classed as pRDB 2

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

Rarely recorded in Leicestershire and Rutland.