Aestivating-dimorph
Guides
Periphyllus
Periphyllus Aphids, maple aphids
Periphyllus is a genus of aphids in the family Aphididae, subfamily Chaitophorinae, containing more than 40 described species. Species in this genus are primarily associated with maple trees (Acer spp.), though some feed on related host plants such as Koelreuteria. Many species exhibit complex life cycles with polymorphic forms including viviparous females, aestivating dimorphs, and sexual morphs. Several species are invasive pests outside their native ranges, spreading with ornamental host plants.