Using a second organism for transportation (like 'hitching a ride'). The adjective is phoretic. For example, the phoretic sphaerocerid fly Norrbomia frigipennis mates on scarabid dung beetles, follows them underground, and lays eggs in the collected dung.
Also see Kleptoparasitism and phoresy in the Diptera
as published by Sivinsky, Marshall and Petersson in The Florida Entomologist 82: 179-197 (1999) on the downloads pge of Dipter.info.
as published by Sivinsky, Marshall and Petersson in The Florida Entomologist 82: 179-197 (1999) on the downloads pge of Dipter.info.