Bringing the beetles into the fold as a servant race is an idea. However, while controlling their females does give us a means of dominating them, their individuality does mean that they'll be inclined to do something stupid in some vain attempt to try and liberate themselves from our guiding wisdom. 

A possible idea: We employ the methods we use to rapidly improve our own biology in order to alter the biology of the beetle larvae within the eggs so that if they are not apart of the hivemind itself, they are submissive to our commands without the presence of mind to plot rebellion. We can employ them as beasts of burden.

I would not recommend using them for military actions; At least, not at the cost of our own militant abilities.