376 Welsh Clearwing (Synanthedon scoliaeformis)

A two-year lifecycle, overwinters as a larva

Recorded size range of fully grown larvae - 27 to 30mm

Usual larval stage August to the second May

Adult forewing - around 12 to 15mm. Flies June to early July

Larval foodplants : Larvae feed inside the base of a trunk or roots of birch (Betula spp.)

Not currently available on this website. For photographs of larvae, a pupal case and adults see:-