|1661 ~ Orange Underwing ~ Archiearis parthenias|
Records from 1998 (Lake Vyrnwy) and 2012 (Llanymynech Rocks). This day flying species is probably under recorded, flying as it does, around the tops of birch trees in March/April.
Wingspan : M & F, 35-39mm.
Light Orange Underwing.
Open woodland, scrub & open ground.
Downy birch and silver birch.
Eggs laid on twigs in time for larvae to feed on opening catkins. Then feed on younger leaves when larger, hiding between spun leaves during day. Larva Apr-June. Overwinters as pupa.
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Photo by AH, 24th Mar 2012, Llanymynech Rocks