Maple-feeding
Guides
Drepanosiphinae
Drepanosiphinae is a Holarctic subfamily of aphids within Aphididae, comprising approximately 13 genera (8 extinct) and over 60 described species. The six extant genera—Drepanaphis, Drepanosiphoniella, Drepanosiphum, Megalosiphonaphis, Shenahweum, and Yamatocallis—exhibit strict host associations primarily with maple trees (Acer spp.). The subfamily is characterized by enlarged fore or mid femora and rastral spines on hind tibiae. Molecular phylogenetic studies confirm its monophyly and reveal complex endosymbiotic relationships with both Buchnera aphidicola and Sodalis-like bacteria in most species.