Food Plant: Cynoglossum officinale (Hound's-tongue), Lithospermum arvense (Field Gromwell), Myosotis scorpioides (Water Forget-me-not), M.sylvatica (Wood Forget-me-not), Pentaglottis sempervirens (Green Alkanet), Symphytum officinale (Common Comfrey)

Mine: Summer & Autumn

Notes: The initial short linear section (as shown) may become engulfed later by the large irregular blotch formed and no longer be visible. The larvae mine singly. A local miner. Forms a reddish-brown pupa. The mines may resemble those of A.abiens and care must be taken as the presence of single larvae in the mine is not indicative of A.mysotidis. Warringtom (pers.comm) reared single occupancy mines on Pentaglottis and Symphytum and all proved to be A.abiens.

Data: 11.x.2016, Hessle, South-east Yorkshire, VC61

Image:© Barry Warrington

References:
Hering, M (1957) - Bestimmungstabellen der Blattminen von Europa.
Robbins, J (1990) - A Provisional Atlas of The Leaf Miners of Warwickshire.
Spencer, K A (1976) - The Agromyzidae of Fennoscandia and Denmark.
Spencer, K.A (1972) - "Diptera: Agromyzidae" Handbooks for the Identification of British Insects, Royal Entomological Society of London.