The term 'colonizing insect' refers to a type of insect that is capable of establishing and maintaining a population in a new environment. The two most common examples of this type of insect are the EMMET (5 letters) and the ANT (3 letters). Emmets are small, wingless insects that live in large colonies and feed on plant material. Ants are social insects that live in colonies and feed on a variety of food sources, including other insects. Both emmets and ants are capable of quickly colonizing new environments, making them important components of many ecosystems.