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Idaea incisaria, a small geometrid moth (wave) in the Sterrhinae subfamily, is known for being highly variable in color (white to black-grey), feeding as detritivores (dead plant matter) as larvae, laying eggs singly or in small groups on various substrates like silk or dry leaves, and being found across Europe and Asia, thriving in dry Mediterranean climates.
Key Facts:
Classification: A geometer moth (Family: Geometridae, Subfamily: Sterrhinae).
Appearance: Extremely variable, from almost pure white to dark grey, with patterns (lines, spots) that can be well-defined or absent.
Diet (Larvae): Detritivores, meaning they consume dead organic matter (leaf litter) rather than live plants, unlike many related species.
Reproduction (Oviposition): Females lay eggs individually or in small clutches (2-12) on silk threads, dry plant fragments, or even container walls.
Habitat: Common in Mediterranean regions, adapted to dry, warm conditions, and found in Europe (Spain, UK) and parts of Asia.
Size: Adults typically have a wingspan of 16-20 mm.
