They're these weird robot insect things. I'll give you their abilities.
Cyber Cockroaches: They're strong... And I guess they can build and repair stuff.
Cyber Ants: Can do all that but they also shoot lazers.
Cyber Wasps: Can fly, and when they sting things they suck the life force out of them.
Cyber Assasin Beetles: Can regenerate from any injury except freezing, and can spit acid that melts through steel walls easily. Also, fragments of them will themselves grow into new Assasin Bettles.