Lithophane ornitopus
# Lithophane ornitopus

Lithophane ornitopus, the grey shoulder-knot, is a moth of the family Noctuidae. The species was first described by Johann Siegfried Hufnagel in 1766 and is found in most of the Palearctic realm from Ireland east to Siberia.

## Technical description and variation

The wingspan is 32–38 mm. Its forewings are grey white; a bifurcate black streak from base below cell; lines indistinct, pale with dotted edges; stigmata grey with partial black outlines and paler rings; the lower lobe of the reniform orange tinged; claviform sometimes connected by a black streak with outer line, and often a dark spot between the stigmata; submarginal line waved, white, preceded by dark marks; hindwing grey; the whiter forms are separated as ab. pallida Spul.

## Biology

Adults are on wing from late August to November and, after overwintering, again from the end of February to mid-May. The larvae are bluish green dotted with white; dorsal and subdorsal lines white; spiracular line yellowish white. The larvae feed on various deciduous trees, but mainly oak (Quercus species) and can be found from April to June. It overwinters as an adult.

## Subspecies

* Lithophane ornitopus ornitopus
* Lithophane ornitopus pitzalisi Hartig, 1976 (Sardinia)
