Food Plant : Achillea millefolium (Yarrow), Artemisia vulgaris (Mugwort), Centaurea scabiosa (Greater Knapweed), Crepis biennis (Rough Hawks-beard), Erigeron annuus (Daisy Fleabane), Hieracium umbellatum (Umbellate Hawkweed), Jacobaea erucifolius (Hoary Ragwort), Jacobaea vulgaris (Common Ragwort) Recorded Elsewhere: Hieracium umbellatum (Umbellate Hawkweed), Picris hieracioides (Hawkweed Oxtongue)

Mine: Summer

Notes: Lives as a stem borer with adults emerging from puparia in the late spring onwards. The puparium has posterior spiracles on two adjoining plates with strong central horns surrounded by pale pores (this distinguishes it form M.dettmeri where the surrounding pores are dark). Puparium shown in Jacobaea vulgaris (Common Ragwort).

Data: 14.x.2023, Downham Market, Norfolk, VC28

Image:© Rob Edmunds