One can infer a lot of information from the size of the Nest.
The most obvious is the civilization level of the World where the Insect Race owning the Nest resides.
The Nest positioned before the interstellar battleship "Cloud Rainbow" is a typical version owned by the Insect Race from a Level 5 civilization World.
The primary purpose of the Nest is not for interstellar combat, thus there's no need to worry that the "Cloud Rainbow" will be quickly destroyed by the Nest.
As the core of an Insect Race community, its role is to proliferate in times of peace and to deliver troops in times of war.
Therefore, the moment the Nest appeared signified that the "Cloud Rainbow" was surrounded by countless short-distance capable Insect Race groups.
The trouble the "Cloud Rainbow" has to deal with is not the Nest, but those temporarily concealed Insect Race.