Unravelling the historical biogeography and diversification dynamics of a highly diverse conifer‐feeding aphid genus

Aim Scenarios of aphid evolution suggest that adaptation to host plants plays a major role in aphid diversification. It is therefore commonly assumed that host association has also shaped the biogeographical patterns of aphids; particularly, it has been hypothesized that the intercontinental disjunctions observed in the Holarctic for many aphid groups resulted from the disappearance or migration of their hosts. We explored this hypothesis for...