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17.011 ~ 0461 ~ Ypsolopha ustella ~ Variable Smudge
UK Status

Resident. Widespread and very common throughout the British Isles.

Montgomeryshire Status

Quite common throughout the county.

Wingspan :   M & F, 15-20mm.

Confusion species

Y. sylvella and some forms of Y. parenthesella.
Flight time & Voltinity (Univoltine)


Mainly where oak is found.



Lifestage data

Spinning. Eggs laid on a twig of the foodplant. Larva feeds from a slight spinning. Pupates in a pale brown cocoon under a leaf, in a crevice or against the bark.
Montgomeryshire photos

Photo by PRW, 28th Oct 2006, Commins Coch

Photo by PRW, 25th Oct 2006, Commins Coch

Photo by PRW, 20th Nov 2009, Commins Coch

Photo by PRW, 15th Dec 2006, Commins Coch

Photo by DB, 25th August 2012, Middletown

Photo by JP, 11th March 2017, Aberbechan