Food Plant: Tanacetum vulgare (Tansy),Achillea ageratum (English Mace)

Mine: early and late Summer

Notes: Makes a long linear mine with frass with closely adjoining grains (as shown). The mine is intially lower surface, but finally upper surface. A widespread miner. The puparium is black, unlike Liriomyza tanaceti on the same host, which has a yellow puparium. pupation is outside the mine. The mine shown is on English Mace herb (Achillea ageratum).

Data: 08.xi.2016, Cottingham, 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.