Floral Zerg Queen are a sort of Floral Zerg Infestation transfer between insects and plants as the infested animals get traits of both partly because of the Queens.

Infested Ants are the very first noted insects infested by the Zerg and since the culprits were the Floral Brood, the Infested Ants became not only as large as wolves but also as spiky as thornweeds. Additionally, the Ants seem to be the working units as their usual behavior is gathering materials and building a structures.

(Zerg Queen belongs to Blizzard)