Lygephila pastinum, the blackneck, is a moth of the family Erebidae. It is found in Europe, Siberia, Japan and China. The wingspan is 37–42 mm. The length of the forewings is 18–21 mm. The moth flies in two generations from late March to mid August and from September and October . The larvae feed on various herbaceous plants such as Vicia cracca and Lathyrus pratensis. \n* \n* Illustration from John Curtis's British Entomology Volume 5