Alder Moth
Common NameAlder Moth
Scientific NameAcronicta alni
FamilyNoctuidae
SubfamilyAcronictinae
Wingspan (mm)40
Wing Patterncryptic
Primary Colorsdark grey, black, cream
HabitatWoodlands, forests, parks, gardens, and hedgerows
Geographic RangeEurope and temperate Asia, from western Europe to Japan
Host Plantsalder, birch, oak, willow, hazel, lime, rose
Flight PeriodMay to July
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesThe larva is highly distinctive, initially black with white markings, later developing bright yellow bands and club-shaped black hairs. It pupates in a cocoon, often incorporating wood fragments.
Identification TipsAdults are identified by their dark, mottled forewings and the characteristic white tornal streak. The larva is unmistakable with its striking black and yellow banding and clubbed hairs.
Description
A medium-sized moth with mottled dark grey and black forewings, often featuring a prominent pale patch on the thorax and a distinctive white tornal streak on the forewing.
