The Wing Atlas
Three-lined Balsa Moth

Three-lined Balsa Moth

Common NameThree-lined Balsa Moth
Scientific NameMesapamea secalis
FamilyNoctuidae
SubfamilyHadeninae
Wingspan (mm)33
Wing Patterncryptic
Primary Colorsgrey, brown, tan
HabitatGrasslands, meadows, open woodlands, gardens, agricultural areas
Geographic RangeEurope, North Africa, parts of Asia, introduced to North America
Host Plantsvarious grasses, wheat, barley, oats, rye
Flight PeriodJune to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae feed internally within the stems or roots of various grasses, pupating in the soil. Adults are nocturnal and emerge in summer.
Identification TipsHighly variable in color, but typically features a somewhat pointed forewing apex and characteristic wavy transverse lines. Often confused with other *Mesapamea* species, requiring careful examination for definitive identification.

Description

A medium-sized moth with cryptic greyish-brown to reddish-brown forewings, marked with wavy dark transverse lines and often indistinct stigmata, providing excellent camouflage.

Similar Species