Birch Marble
Common NameBirch Marble
Scientific NameOlethreutes betulae
FamilyTortricidae
SubfamilyOlethreutinae
Wingspan (mm)16
Wing Patterncryptic
Primary Colorsgrey, white, black
HabitatWoodlands, forests, parks, and gardens with birch trees
Geographic RangeEurope, parts of Asia
Host PlantsBetula spp. (birch)
Flight PeriodMay to July
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on the leaves of birch trees, often spinning leaves together. Pupation occurs in a cocoon, typically on the host plant or in leaf litter.
Identification TipsLook for the marbled grey and white forewing pattern, particularly the prominent white patch near the tornus, and its strong association with birch trees. Its small size and typical Tortricidae resting posture (wings held roof-like) are also characteristic.
Description
A small, cryptically colored moth with forewings mottled in shades of grey, white, and black, providing excellent camouflage against birch bark. It often features a distinct white patch towards the rear of the forewing.
