Eugraphe sigma


Eugraphe sigma is a moth of the family Noctuidae. It is found from most of Europe to the Ural, Siberia, Transcaucasia, Armenia and Korea.

Description

The length of the forewings is 17–20 mm. Warren states R. sigma Schiff. .
Forewing black brown or deep brown, with a faint vinous tinge; costal area diffusely brownish-ochreous;the lines ochreous; cell dark brown; upper stigmata large, grey with black edges; claviform small, blackish;hind-wing dark fuscous. A central European species found in France, Switzerland, Germany and Austria;also in Armenia, Siberia and Amurland. Larva reddish yellow, with dorsal and lateral lines white; a dark oblique bar on each segment with a white dot above it; feeds on low plants. - The form nubila Esp. has the costal and apical areas of forewing a dull wood colour.

Subspecies

  • Eugraphe sigma sigma
  • Eugraphe sigma melancholina Bryk, 1949
  • Eugraphe sigma anthracina Boursin, 1954

Biology

Adults are on wing from June to July in one generation per year.
The larvae feed on various low-growing plants, including Lamium album, Viburnum lantana, Laburnum anagyroides, Prunus spinosa, Lonicera and Ligustrum species.