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43.005 ~ 0914 ~ Scythris crassiuscula
UK Status

Resident. A local species found in southern half of Britain.

Montgomeryshire Status

This species was first recorded in 2017 at Llanymynech Hill in the north-east of the county.

Wingspan :   M & F 9-11.5mm.

Confusion species

Scythris piceapennis.
Flight time & Voltinity (Bivoltine)


Chalk and limestone grassland.


Common rock-rose.

Lifestage data

Eggs laid on foodplant. Larva feed in a loose web over several shoots of the plant. Pupates; not known.
Montgomeryshire photos

Photo by JEG, 8th July 2017, Llanymynech
Confirmed by Gen.Det.