Industrial_melanism
Guides
Mesopsocus
Mesopsocus is a genus of barklice (Psocodea: Mesopsocidae) comprising more than 60 described species. Members are small, soft-bodied insects that inhabit bark surfaces and tree trunks, where they feed on epiphytic growths. The genus has been studied for its ecological dynamics, including niche partitioning among coexisting species and industrial melanism in response to pollution. Some species serve as hosts for parasitoid wasps in the family Mymaridae.