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32.001 ~ 0666 ~ Semioscopis avellanella
UK Status

Resident. A local species found throughout much of England (except the south-west), Scotland (except the far north) and south Wales.

Montgomeryshire Status

Recorded from just two sites in the county, Commins Coch (where the species is locally common) and Pont Llogel.

Wingspan :   M & F, 20-26mm.

Confusion species

S. steinkellneriana.
Flight time & Voltinity (Univoltine)


Mature birch woodland.


Birch, small-leaved lime and hornbeam.

Lifestage data

Eggs, up to eight are laid on each twig. Larva feeds in a folded down cylinder along the edge of a leaf. Pupates in a cocoon in detritus or the soil.
Montgomeryshire photos

Photo by PRW, 15th Apr 2007, Commins Coch

Photo by MDH, 26th Mar 2011, Pont Llogel