Resident and suspected occasional immigrant. The species usually occurs singly, occasionally sparingly, in a wide range of habitats, although it is sometimes fairly common at Walberton. Generally double-brooded flying mainly from early June to late July, sometimes from late May, and again from mid August to mid September, occasionally to early October. An infrequent partial third emergence may be indicated by a sighting made on November 11th 2003 at Portslade. Larvae feed on the leaves of hedge mustard. (Pratt, 2011).