Eupithecia trisignaria Herrich-Schäffer, 1848
70.1750 (B&F: 1826)
Resident species, occurring sparingly at mv light in a few special places on downs between Arundel and Hampshire border, larvae sometimes being common; never detected in East Sussex. Extremely local and irregular in appearance. Single-brooded, flying mainly from the second week of July to mid August, occasionally from early July. Larvae feed on wild carrot. (Pratt, 2011).