Brahmaea tancrei, commonly known as the Siberian Owl Moth or Tancre's Owl Moth, is a large and striking species of moth in the family Brahmaeidae. Native to parts of East Asia, particularly regions in China, Korea, Japan, and the Russian Far East, this moth is admired for its intricate wing patterns.
The Siberian Owl Moth is notable for its large size, with a wingspan ranging from 12 to 16 cm. Its wings are adorned with complex patterns resembling owl feathers, providing excellent camouflage. The coloration is primarily shades of brown, gray, and beige, with wavy lines and eye-like markings that help deter predators. The moth's body is stout and covered with fine hairs, contributing to its owl-like appearance.
Brahmaea tancrei inhabits temperate forests, woodlands, and mountainous regions, often preferring areas with abundant vegetation and host plants for its larvae. These regions offer the cool and humid conditions that are ideal for its development.
This species is nocturnal, and adult moths are most active during the warmer months of spring and summer. They are attracted to light sources at night, which makes them relatively easy to observe. Adults do not feed, relying on the energy stored during their larval stage to sustain their short lifespan, which is focused on reproduction.
The larvae are large and feed on a variety of host plants, including species of lilac (Syringa), ash (Fraxinus), and privet (Ligustrum). The caterpillars are striking in appearance, often green or brown with distinctive patterns and spines that help them blend into their surroundings or deter predators. They pupate in a strong underground, where they overwinter before emerging as adults.
While Brahmaea tancrei is not currently classified as threatened, its reliance on forested habitats makes it susceptible to deforestation and habitat degradation. Conservation efforts aimed at preserving forest ecosystems in its range are essential to maintaining healthy populations of this and other moth species.
Host plants: Privet, Lilac, Ash
Difficulty: Easy (2/10)
Temperature: Room temperature
Lifecycle: Moths emerge early in spring; caterpillars have brilliant ‘tentacles’ and bright green and yellow colours.
