Bugs make Rhys' blood sing, he's tuned to them on a cellular level. It's not like he chose them, but it's also not like he would do differently if he had the option. Bugs were so much more useful than controlling - what? Cats? Bugs are woven into the very fabric of the world.

"Heal wounds, communication, undoing locks, lighting, defense, create illusions, security cameras, power vehicles, that sort of thing."