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2007 ~ Swallow Prominent ~ Pheosia tremula
UK Status

Resident. Common

Montgomeryshire Status

A fairly common species, found throughout the county.

Wingspan :  M & F, 50-64mm.

Confusion species

Lesser Swallow Prominent.

Flight time (Montgomeryshire)


Woodland, poplar plantations, hedgerows, scrub, carr, parkland and gardens.


Poplars, aspen, willows and sallows.

Lifestage data

Overwinters as a pupa underground. Larva June-July and late August-September.
Click map for larger image

Montgomeryshire photos

Photo by MDH, 13th Aug 2009, Llanfyllin

Photo by PRW, 11th Aug 2006, Commins Coch.
Pic shows natural resting position.