Moths & butterflies known to feed on red fescue (Festuca rubra):
| Species | Status | Match |
|---|---|---|
| Grayling Hipparchia semele |
Vulnerable | this species |
| Small heath Coenonympha pamphilus |
Near Threatened | any Festuca species |
| Crescent striped Apamea oblonga |
LC | this species |
| Map-winged swift Korscheltellus fusconebulosa |
LC | this species |
| Flounced rustic Luperina testacea |
LC | any Festuca species |
| Meadow brown Maniola jurtina |
LC | any Festuca species |
| Marbled white Melanargia galathea |
LC | this species |
| Lesser common rustic Mesapamea didyma |
LC | any Festuca species |
| Brown-line bright-eye Mythimna conigera |
LC | this species |
| Large skipper Ochlodes sylvanus |
LC | this species |
| Gatekeeper Pyronia tithonus |
LC | any Festuca species |
Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.