White Ringed Atlas Moth (Epiphora mythimnia) | EGGS

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The White Ringed Atlas Moth, Epiphora mythimnia, is a stunning, mid-sized species of moth belonging to the Giant Silkmoth family, Saturnidae. It is named for the distinctive white ringed patterns on its wings. The White Ringed Atlas Moth has a wingspan of 10-13cm, with rounded edges and colourful markings. The wings are typically silver-grey with large, bold white rings or patches in the central areas and around the transparent windows, which give this species its common name. The wings are edged with darker lines and may feature additional subtle patterns and markings, providing a somewhat camouflaged appearance when the moth is resting. The body of the moth is covered in fine hairs and is typically a light grey color.

Caterpillars resemble those of atlas, feeding on a variety of host plants including Ceanothus and Willow (Salix). Rearing of larvae has not often been attempted outside of butterfly farms in this moth's natural range, however most reports suggests it is fairly straightforward when kept clean and with air flow, misting every day or two to allow the caterpillars to drink. Cocoons are tough and fibrous, with a papery inside, which protects the pupa from external weather conditions, and allows the moth to wait through the dry season before emerging when conditions improve. Typically in captivity the cocoons emerge quickly, within 3-4 weeks, when kept humid and relatively warm. If conditions are unfavourable (cool, dry) then the pupae may enter diapause and emerge some time later - a handy survival mechanism in the wild!

Host plants: Ceanothus, Willow, Euphorbia.

Difficulty: Caterpillars may be challenging (5/10); cocoons very easy (1/10)

Temperature: Room temp; cocoons emerge faster with warmth and humidity. 

Lifecycle: Continually brooded but cocoons can overwinter.