description Mottled umber moth Overview
The mottled umber moth, Erannis defoliaria, is a geometrid moth found across Europe and in parts of western Asia. Its males are winged and variable in brown coloration, whereas the females are completely wingless and climb tree trunks after emerging in autumn, usually from October into winter. The larvae appear in spring and feed on the foliage of broad-leaved trees and shrubs, including oak, birch, hazel, hawthorn, and apple, where abundant populations can cause defoliation.
help Mottled umber moth FAQ
What is unusual about the female mottled umber moth?
Female mottled umber moths are completely wingless, unlike the winged males. After emerging in autumn, they climb tree trunks to mate and lay eggs.
What is the scientific name of the mottled umber moth?
Its scientific name is Erannis defoliaria. It is a geometrid moth found across Europe and parts of western Asia.
When do female mottled umber moths climb tree trunks?
They usually emerge and climb during autumn, commonly from October onward. Their wingless bodies mean that walking up tree trunks is their main way to reach suitable mating and egg-laying sites.
Are male and female mottled umber moths the same color and shape?
No. Males have wings and variable brown coloration, while females are completely wingless and have a different body form.
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