Idaea alyssumata is a small, cryptic moth in the Geometridae family, recognized by its highly variable wing coloration and a wingspan of 15-19 mm. Primarily found in the western Mediterranean region, including Spain and Portugal, its biology features several distinct facts:
Taxonomy & Classification
Scientific Authority: Himmighoffen & Millière (1871).Family: Geometridae.Subfamily: Sterrhinae (often called "waves").Common Names: Acidalie de l'Alysson (French).
Appearance & Life CycleWingspan: 15 to 19 mm.Coloration: Highly variable, cryptic patterns used for camouflage.
Flight Period: The moth is typically bivoltine (producing two generations per year) and is active during the summer months.
Larval Diet: Unlike many caterpillars that eat fresh vegetation, the larvae of this species feed on the withered leaves of herbaceous plants and plant debris.
Distribution & HabitatGeographical Range: Endemic to southwestern Europe (Spain, Portugal, and France).
Habitat: Prefers mountainous, rocky, or low-vegetation areas, often found in nature reserves like the Sierra de Mariola in Alicante.
