Sexual-dimorphism-in-behavior
Guides
Yponomeuta
Small Ermine Moths
Yponomeuta is a large genus of small moths in the family Yponomeutidae, comprising 103 described species. Commonly known as Small Ermine Moths, members of this genus are notable for their distinctive defensive behavior: several species emit warning clicks during flight to signal their unpalatability to bat predators. Research on Yponomeuta cagnagella has demonstrated rapid evolutionary adaptation to urban environments, with populations exposed to long-term light pollution showing reduced attraction to artificial light sources compared to those from dark areas.