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1915 ~ September Thorn ~ Ennomos erosaria
UK Status

Resident. Common S,C,(N).

Montgomeryshire Status

A locally common species.

Wingspan :  M & F, 38-42mm.

Confusion species

August Thorn and Dusky Thorn.

Flight time (Montgomeryshire)


Woodland, parkland and gardens.


Oak, birch, beech and lime.

Lifestage data

Overwinters as an egg on the foodplant. Larva late April-early July. Pupates amongst spun leaves of the foodplant.
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Montgomeryshire photos

Photo by MDH, 22nd Aug 2009, Llanfyllin