Shore Wainscot Moth
Mythimna litoralis
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Overview
The Shore Wainscot is a specialist of coastal dunes — one of the few moth species almost entirely restricted to dune habitats. The larvae feed on Marram Grass inside the rolled leaves. The adult is a pale buff moth, unremarkable to look at but significant as an indicator of dune quality. Found across the Sefton Coast wherever good Marram habitat exists.
At a Glance
| Order | Lepidoptera |
| Family | Noctuidae |
| Habitat | Mobile sand dune · Semi-fixed dune · Marram Grass stands |
| Diet | Adults: nectar. Larvae: inside the rolled leaves of Marram Grass |
| UK population | Largely restricted to coastal dunes; found wherever good Marram Grass habitat exists |
| Sefton Coast | Present throughout the Sefton Coast dune system; a reliable catch in any moth trap set on the dunes |
| Conservation | UK Green List |
Where to See It
Mobile and semi-fixed dunes at Formby and Ainsdale. Specific to coastal dune habitats with Marram Grass.
Identification
Pale straw-buff moth. Wainscot-type pattern with pale streaking on forewing. Wingspan 30–35mm. Best identified by habitat — coastal dunes with Marram.
Viewing & Photography Tips
A moth trap (or a white sheet with a UV lamp) on the dunes in August will usually produce this species. It is a reliable dune specialist.
Conservation Status
UK Green List
This species has a favourable conservation status in the UK and remains an important part of Sefton Coast biodiversity.
Frequently Asked Questions
Why is the Shore Wainscot Moth restricted to coastal dunes?
The Shore Wainscot Moth's larvae feed almost exclusively inside the rolled leaves of Marram Grass (Ammophila arenaria), which only grows on coastal sand dunes. This specialist relationship makes the moth entirely dependent on dune habitat. The moth's distribution closely tracks the distribution of Marram Grass around the British coast.
Related Species
Plan your visit to the Sefton Coast
Marshside RSPB, Formby pinewoods, Ainsdale NNR — practical guides to getting there, what to bring, and the best spots for each season.