Food Plant: Crepis biennis (Rough Hawks-beard), Hieracium, Hypochaeris radicata (Cat's-ear), Leontodon autumnalis (Autumn Hawkbit), Picris hieracioides (Hawkweed Oxtongue), Pilosella officinarum (Mouse-ear-hawkweed), Sonchus arvensis (Perennial Sow-thistle), S. asper (Prickly Sow-thistle), S. oleraceus (Smooth Sow-thistle), Taraxacum officinale (Dandelion). Recorded Elsewhere: Andryala, Aposeris foetida, Chondrilla juncea (Skeletonweed), Lapsana communis (Nipplewort), Mycelis muralis (Wall Lettuce)

Mine: Late spring and summer

Notes: Forms a white mine with little frass along the midrib with offshoots into the leaf lamina (as shown). Pupariation to form a yellowish white puparium occurs at the base of the midrib. Similar Ophiomyia mines are formed such as O.beckeri and O.cunctata and they must be bred through for a correct identification.

Data: 26.vii.2020, Totnes, South Devon, VC3. (coll.John Day, adult male bred and det. B.P. Warrington).

Image:© John Day