Endothenia nigricostana
Endothenia nigricostana
Adult • Great Ellingham, Norfolk • © Chris Knott

49.191 BF1102

Endothenia nigricostana

(Haworth, 1811)

Wingspan c. 13mm.

This species is distributed thinly but fairly widely across the southern half of England and Wales, ranging more scarcely northwards to northern England.

It inhabits woodland margins and embankments where the larvae feed on marsh woundwort (Stachys palustris), eating down from the flower into the stem and roots.

The adults are quite distinctive, typically with a yellow or ochreous blotch on the dorsum, although this can be less obvious on darker examples. They fly in June and are active in late afternoon as well as after dark.
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