The Wing Atlas
Hairy Wave

Hairy Wave

Common NameHairy Wave
Scientific NameIdaea pilosata
FamilyGeometridae
SubfamilySterrhinae
Wingspan (mm)20
Wing Patternspotted
Primary Colorspale grey-brown, dark brown
HabitatWoodland edges, hedgerows, gardens, heathland, dry open areas
Geographic RangeEurope, parts of Asia
Host Plantsdandelion, knotgrass, bedstraw, plantain, various low-growing plants and detritus
Flight PeriodMay to July, August to October (bivoltine)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are polyphagous, feeding on withered leaves and various low-growing plants. The species typically overwinters as a larva, pupating in a loose cocoon near the ground.
Identification TipsDistinguished by its generally pale, uniform ground color, the distinct subterminal row of small black dots, and often a slightly 'hairy' appearance. Examination of the specific pattern of faint cross-lines can also aid in identification from similar *Idaea* species.

Description

A small, pale greyish-brown moth with finely speckled wings, often showing faint wavy cross-lines and a distinctive row of small black dots along the outer margin.

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