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Phytomyza tetrasticha Hendel, 1927
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Food Plant: Mentha aquatica (water Mint), M.longifolia (Horse Mint), M.suaveolens (Round-leaved Mint)

Mine: bivoltine - early Summer, late Summer

Notes: The mine starts with a small spiral and then develops into a greenish blotch (frequently on the leaf margin), which turns brown as it ages. It may pupate either in or outside the mine. The pupa is yellow-brown in the summer generation and deep black in the winter one (as shown). A widespread species in the UK.

Data: ex mine 18.x.2104, bos t'Ename ~ Oudenaarde, (Oost Vlaanderen), Belgium

Image:© Carina van Steenwinkel

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