Moths & butterflies known to feed on sea sandwort (Honckenya peploides):

Species Status Match
Archer's dart
Agrotis vestigialis
LC this species
Coast dart
Euxoa cursoria
LC this species
Bordered sallow
Pyrrhia umbra
LC this species
White colon
Sideridis turbida
LC this 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.