Eupithecia extensaria, the scarce pug, is a moth of the family Geometridae. The species was first described by Christian Friedrich Freyer in 1844. It is found in the British Isles (rare, and confined to eastern saltmarshes), Spain and eastern Europe.
The wingspan is 21–25 mm. The moth flies in both May and June.
The larvae feed on sea wormwood (Artemisia maritima).Wikisource:The Moths of the British Isles Second Series/Chapter 9#238
Subspecies Eupithecia extensaria extensaria Eupithecia extensaria leuca Dietze, 1910 Eupithecia extensaria occidua Prout, 1914
References