Wiktionary
scarce copper
n. a butterfly of the copper or gossamer-winged butterfly family, ''Lycaena virgaureae''
Wikipedia
Scarce copper
The scarce copper (Lycaena virgaureae) is a butterfly of the family Lycaenidae (copper or gossamer-winged butterflies).
Usage examples of "scarce copper".
The scarce copper came from a vacant lot near the Tottenham Court Road tube station very late one night, where the wreckage of a chain-link fence stood in for her bedposts.