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19.002 ~ 0397 ~ Glyphipterix thrasonella ~ Speckled Fanner
UK Status

Resident. Widespread and abundant throughout the British Isles.

Montgomeryshire Status

Fairly common in the county and can be abundant where foodplant exists.

Wingspan :   M & F, 10-15mm.

Confusion species

Flight time & Voltinity (Univoltine?)


Wherever the foodplant is found.


The stem of Juncus acutiflorus.

Lifestage data

Stem miner. Eggs laid on the heads of foodplant. Little is known about the larval stage or pupation.
Montgomeryshire photos

Photo by PRW, 17th June 2008, Commins Coch

Photo by MDH, 1st June 2011, Llanfechain

Photo by GBC, 16th June 2014, Lake Vyrnwy