Norfolk status Copper Underwing/Svensson’s Copper Underwing – The underside of the hindwing is considered the most, but not totally reliable distinguishing feature, therefore dissection will be required for 100% certainty. All other external features currently used are considered subjective and unreliable -
Please record as Copper Underwing agg. if the underside of hindwing has not been checked.
Recorded in 58 (78%) of 74 10k Squares. First Recorded in 1930. Last Recorded in 2021. Additional Stats