Food Plant: Cirsium arvense (Creeping Thistle), C. palustre (Marsh Thistle), C. vulgare (Spear Thistle), Senecio jacobaea (Common Ragwort); Elsewhere: Carduus spp , Inula spp .
Mine: unknown but adults seen in May - September (Papp L & Cerný M (2015))
Notes: Is an internal stem borer, pupariating in the stem. The puparium is a pale whitish to straw colour (as shown). The posterior spiracles are separated by approximately their own diameter and have a black central horn. Puparium in Senecio jacobaea (Common Ragwort).
Agromyzidae Recording Scheme Grade: 4
Data: 29.xi.2020 ex mine 28.xi.2020, Downham Market, Norfolk, VC28
Image:© Rob Edmunds
References:
Papp
L & Cerný M (2015), Agromyzidae (Diptera) of Hungary,1,
Agromyzinae
Spencer,
KA (1972) -Diptera, Agromyzidae; Handbooks for the Identification of British
Insects, 10
Spencer
K A (1990), Host specialization in the World Agromyzidae (Diptera)
sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists
