Yeah, except that's for the audience. The character didn't know how Spider-Man got his powers, and he was making a guess as to how Black Bolt has his abilities.

Besides, spiders are not bugs. They are arachnids.

That too.

Bug is the name given to any small creature that is nasty and I don't know its... its a bug. You might be thinking on the word insect. Spiders are not insects. Bugs, at least I think, is a much more subjective meaning. I would call wood lice, insects, mites, spiders, scorpions, centipedes, etc. as bugs.

Spiders are neither bugs nor insects. Spiders are arachnids.

Hydra is correct