Bombus Flavidus queens do not usually assassinate the hose queen. Instead, they infiltrate host colonies, possibly using olfactory mimicry. Olfactory mimicry is the ability to mimic the scent of another species to gain access to their nests or deceive potential mates. Once she has been accepted by the colony, the cuckoo will lay her eggs in the cells that have been prepared for the host queen’s eggs. Once the female cuckoo has laid her eggs, she will leave the nest and not return. When her eggs hatch, they feed on the resources of the host colony.