"Invasive" is mostly a matter of perspective. By far the most successful invasive arthropod in the Nearctic is the European honeybee, but you never really hear

"Invasive" is mostly a matter of perspective. By far the most successful invasive arthropod in the Nearctic is the European honeybee, but you never really hear anyone talk about the considerable ecological harm those do, for the obvious reason that their agricultural and thus economic utility is considered far to outweigh the externalities of their cultivation.