Delta Geometrid
Common NameDelta Geometrid
Scientific NameIdaea dilutaria
FamilyGeometridae
SubfamilySterrhinae
Wingspan (mm)20
Primary Colorspale brown, beige
HabitatDry grasslands, heathland, open woodland, coastal dunes
Geographic RangeEurope, North Africa, Near East
Host Plantsheather, thyme, bedstraws
Flight PeriodJune to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are polyphagous on various low-growing plants, overwinter as larvae, and pupate in the spring.
Identification TipsLook for the uniform pale, sandy coloration and the single, prominent dark transverse line that runs across both forewings and hindwings when the moth is at rest. A small dark discal spot is also present on the forewing.
Description
A small, pale brown or beige moth with a distinctive dark, slightly wavy transverse line across its wings and a small dark discal spot on the forewing.
