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1331 ~ Acentria ephemerella ~ Water Veneer
UK Status

Resident. Locally abundant throughout the British Isles.

Montgomeryshire Status

This species is likely to be very much more common than the few scattered records.

Wingspan :   M & F, 13-17mm.

Confusion species

Flight time & Voltinity (Univoltine)


Ponds, bogs, lakes, slow rivers.


Canadian waterweed, stoneworts and filamentous algae.

Lifestage data

Aquatic. Eggs laid on foodplant. Larva feeds to two metres depth in loose spinning amongst foodplant. Pupates in silken subaquatic cocoon up to a metre below surface.
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Montgomeryshire photos

Photo by DB, 15th July 2013, Middletown