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63.028 ~ 1375 ~ Ostrinia nubilalis
UK Status

Spreading northwards and westwards from south-east England.

Montgomeryshire Status

First recorded at Derwenlas in the west of the county in 2020.

Wingspan :   M & F 29-37mm

Confusion species

Male fairly distinctive, but the female can be confused with Sitochroa verticalis.
Flight time & Voltinity (Univoltine)

Habitat

Wherever the foodplant is found.

Foodplant

Mugwort.

Lifestage data

Stem miner. Eggs laid low down on foodplant. Larva mines upwards. Pupates within the stem.
map
Montgomeryshire photos

Photo by AT, 15th Sept 2020, Derwenlas