Scythris grandipennis (Haworth, 1828)
43.0020 (B&F: 911)
Nationally Scarce B
A resident species, both larvae and adults generally occur sparingly, but they are sometimes fairly common to common in a few places in both vice-counties. Single-brooded, flying mainly from late May to late June. Larvae feed on dwarf gorse and common gorse. (Pratt, 2011).