Appearance
The wingspan is 32–40 mm. Forewings whitish-ochreous, sometimes sprinkled with dark fuscous ; indistinct brownish median, submedian, and dorsal streaks; sometimes blackish terminal dots. Hindwings white.Larva blackish or dark brown-grey, pale-marbled ; subdorsal and subspiracular lines pale ochreous-yellowish, often reddish-marked ; tubercles on these yellow or orange ; fascicles of pale reddish-brown and black hairs ; head black, streaked with ochreous.Food
The larvae feed on ''Typha latifolia'', ''Juncus'' species, including , ''Scirpus'', ''Eleocharis palustris'', ''Eriophorum'', ''Elymus arenarius'', ''Phalaris arundinacea'', ''Phragmites communis'', ''Festuca rubra'', ''Festuca arundinacea'', ''Salix'', ''Rumex crispus'', ''Filipendula ulmaria'', ''Potentilla palustris'', ''Angelica archangelica'', ''Sonchus arvensis'' and ''Aster tripolium''.References:
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