About Macrothylacia rubi (Linnaeus, 1758)
Macrothylacia rubi (Linnaeus, 1758) adult males have a wingspan of 40–65 mm, with reddish brown wings. Females are typically paler, more greyish in overall color, and slightly larger than males. Both sexes have two narrow, straight, light-yellow transverse bands that cross their forewings. The abdomen of this moth is thick, grey brown, and covered in hairs. Mature caterpillars of this species can grow to a length of approximately 80 millimetres (3.1 in). Young caterpillars are black with bright yellow or orange markings along their segments; as caterpillars mature, they darken in overall color. All developmental stages of the caterpillar are covered in blackish and tawny-colored hairs, with light grey hairs along their sides. This species is distributed from Western Europe through Central Asia to Siberia. It inhabits open woodlands, moors, and prairies.
