The Scarab Queen is the massive being that is encountered in Total Assault 2 and persued to the Beachhead in the 4th level.
Much like the common ant colony or bee hive, the Scarab Queen is responsible for creating new troops. It is also a set hierarchy and the Queen is given royal jurisdiction over most of the entire race. The Queen will always be the selected Deity of the Scarabs.
The Queen is roughly 10 times the size of an everyday Scarab Soldier. Standing around 273 feet tall and weighing as much as an aircraft carrier. She is always wingless once fertilised.