Grass Rivulet
Common NameGrass Rivulet
Scientific NamePerizoma alchemillata
FamilyGeometridae
SubfamilyLarentiinae
Wingspan (mm)20
Primary Colorsgrey, white, brown
HabitatMeadows, grasslands, woodland edges, hedgerows, gardens
Geographic RangeEurope, parts of Asia, North Africa
Host PlantsGaleopsis tetrahit, Lamium album, Stachys sylvatica
Flight PeriodJune to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on the seeds of various plants, particularly species of Hemp-nettle and Dead-nettle, before pupating in the soil.
Identification TipsLook for the distinctive pattern of alternating white and brownish-grey zigzag bands across the forewings, especially the prominent white postmedian band. Its small size is also a key feature.
Description
A small moth with mottled grey and white forewings, characterized by prominent zigzag or wavy transverse bands. The hindwings are generally paler.
