What types of insects and bugs live in Montana?

I'm going to Montana (close to the Missoula area) for a camp in a couple weeks and I've heard it's going to be pretty rugged. I have a giant fear of bugs, spiders, and mosquitoes and I was wondering if anyone can warn me what kinds of bugs live there? Any precautions I should take? I'm definitely taking regular bug spray, but is there anything else? Thanks!