2123 Small Square-spot Diarsia rubi ABH 73.334
Vieweg, 1790

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Moths Noctuidae » Noctuinae

Wingspan 28-33 mm.

Phenology double-brooded, flying in May and June, and again in August and September. In Scotland there is one generation flying in July and August, difficult to tell apart from the similar Fen Square-spot (D. florida).

Description A useful field marker is the small black dot between the orbicular stigma and dorsum, Note No differentator for Fen Square Spot

Confusion Speicies

Adult Ingrailed Clay, Diarsia mendica
Barred Chestnut, Diarsia dahlii
Fen Square-spot, Diarsia florida

Life Cycle

Habitat Preferring damp and marshy places.


I, Fvlamoen [GFDL, CC-BY-SA-3.0 or CC BY-SA 2.5-2.0-1.0], via Wikimedia Commons