Yellow-triangle Slender
Common NameYellow-triangle Slender
Scientific NameHelcystogramma triannulella
FamilyGelechiidae
SubfamilyDichomeridinae
Wingspan (mm)12
Primary Colorsyellow, brown, dark brown
HabitatOpen woodlands, grasslands, gardens, and areas with herbaceous vegetation.
Geographic RangeEurope, extending into parts of Asia.
Host PlantsHypericum, Plantago, Trifolium
Flight PeriodMay to June, and July to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on various herbaceous plants, often spinning leaves together or mining them. Pupation occurs in a cocoon among the host plant.
Identification TipsLook for the distinctive bright yellow forewings with the dark brown triangular mark on the leading edge and the dark apex. Its small size and typical resting posture with wings folded tightly along the body are also key.
Description
A small, slender moth characterized by its forewings, which are bright yellow with a prominent dark brown triangular patch on the costa and a darker brown apex.
