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1876 ~ Small Yellow Wave ~ Hydrelia flammeolaria
UK Status

Resident. Common

Montgomeryshire Status

An uncommon species but has been recorded in most of the county.

Wingspan :  M & F, 20-22mm.

Confusion species

Dingy Shell.

Flight time (Montgomeryshire)


Broadleaf woodland, hedgerows and alder carr.


Field maple, alder and sycamore.

Lifestage data

Overwinters as a pupa in plant debris. Larva late July-September.
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Montgomeryshire photos

Photo by MDH, 4th July 2011, Llanfyllin

Photo by PRW, 24th June 2010, Commins Coch