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Pegomya flavifrons (Walker, 1849)
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frass by exit hole


Food Plant: Silene dioica (Red Campion), Stellaria media (Common Chickweed), Stellaria holostea (Greater Stitchwort). Robbins also recorded it from Lychnis coronaria (Catchfly) and Myosoton (Water Chickweed).

Mine: Bivoltine: late spring & late summer

Pupa: Outside the mine

Notes: A gallery then a blotch, larger and deeper than Amauromyza flavifrons. In large leaves the mine is upper surface and all in one piece. The mine is uaually frass free as the larva ingests it, but may extrude it if threatened (as possibly here as the larva exited the leaf). In small leaves the whole leaf may be covered by a full depth mine with the larva mining several leaves. Locally common. Mine shown on Stellaria media (Common Chickweed).

Data: 05.xi.2019, Downham Market, Norfolk, VC28

Image:© Rob Edmunds

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists