You searched for: “nest robbing”
cleptobiosis, nest robbing (s) (noun); cleptobioses; nest robbings (pl)
The condition of one species of ants raiding the food stores of another ant species: Cleptobiosis involves the scavenging of the refuse piles of another species, but does not nest in close association with it.

Cleptobiosis is a widespread form of competitive exploitation in ants known as "robbing food" or "stealing food".

This entry is located in the following unit: Ant and Related Entomology Terms (page 5)