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28.004 ~ 0636 ~ Denisia similella
UK Status

Resident. A fairly scarce species distributed in the northern half of the UK. A nationally scarce B species.

Montgomeryshire Status

Discovered in the north of the county in 2015 at Lake Vyrnwy.

Wingspan :   M & F 14-16mm.

Confusion species

Flight time & Voltinity (Univoltine)


Places with dead or decaying trees.


Fungus under dead wood or bark.

Lifestage data

Eggs laid on larval food. Larva feeds on organic matter and fungus. Pupates in feeding place.
Montgomeryshire photos
Photo by GE, 15th July 2015, Lake Vyrnwy Photo by MDH, 24th June 2023, Llanfyllin