Moths & butterflies known to feed on yellow iris or flag (Iris pseudacorus):

Species Status Match
Broom moth
Ceramica pisi
Vulnerable this species
Grey chi
Antitype chi
Near Threatened this species
Sweet gale moth
Acronicta cinerea
LC this species
Light knot
Acronicta menyanthidis
LC this species
Crinan ear
Amphipoea crinanensis
LC any Iris species
No common name
Aphthona nonstriata
LC this species
Rush wainscot
Globia algae
LC this species
Webb's wainscot
Globia sparganii
LC this species
The crescent
Helotropha leucostigma
LC this species
Rosy rustic
Hydraecia micacea
LC this species
Belted beauty
Lycia zonaria
LC this species
Gold spot
Plusia festucae
LC this species
Water ermine
Spilosoma urticae
LC this species
Sword-grass
Xylena exsoleta
LC this species
Red sword-grass
Xylena vetusta
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.