Brings back memories as I ended up with hundreds of these as a teenager from half a dozen!
really huge and scary looking but harmless. They look like ants as small nymphs and move fast like ants too, then progressively look more and more like dried out leaves and movement changes to slow rocking like leaves moving in a light breeze
Also although males do exist, they can reproduce without breeding, giving birth only to females if the do not mate
Enjoy your ever growing family!!