Lep:Tortricidae
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49.108 Gynnidomorpha alismana (Ragonot, 1883)
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larval entry hole

Food Plant: Alisma plantago-aquatica (Water |Plantain)

Egg: on a flower stem (upper part)

Mine: September-April

Notes: The larva burrows down the flower stem, leaving irregular scattered frass. Several larvae may inhabit a single stem. It hibernates, fully fed, in a grey silken cocoon in the lower part of the stem. Pupation occurs in the spring. Found in aquatic habitats, at the edges of ponds, steams, ditches, fens, lakes where the host plant grows. The larval entry hole, sealed with silk, is shown.

National Status: Nationally Scarce B

Bradley No: 930

Data: 25.ix.2022, Dungeness, Kent, VC15

Image:© Will Langdon

References:
Bradley JD, Tremewan WG, Smith A (1973) - British Tortricoid Moths
Langmaid JR, Palmer SM, Young MR (2018) - A Field Guide to Smaller Moths of Great Britain and Ireland

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