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376 ~ Welsh Clearwing ~ Synanthedon scoliaeformis
UK Status

Resident. RDB N,WC.

Montgomeryshire Status

Originally thought to be only found in a small area in the north-west of the county, but by 2020 it has been found at many suitable sites, all in the western half of the county.

Wingspan :
  M & F, 27-38mm.

Confusion species

White-barred Clearwing.
Flight time (Montgomeryshire)

Habitat

Open birch woodland on hillsides of wet acidic pasture.

Foodplant

Downy birch.

Lifestage data

Overwinters as larva for > 1 year, but  exact duration unknown. Feeds on the inner bark of old trees where it later pupates.
map
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Montgomeryshire photos

Photo by ANG/JEG, July 2007, Lake Vyrnwy

Photo by MDH, 8th July 2010, Lake Vyrnwy
Pic shows pheromone lure in action!

Photo by GBC, 26th July 2018, Lake Vyrnwy
Pic shows exuvia in situ

Photo by GBC, 26th July 2018, Lake Vyrnwy
Pic shows exuvia