I'm not sure how floating bass flies got the name "bug", but it certainly has stuck. Whether constructed of wood, plastic, foam, or hair, they all seem to be lumped into the generic category of "bass bug". Although a few are tied to imitate specific food forms, usually mice or frogs, most are very surreal, offering the impression of something living and outrageous.
By Bob Petti
Since bass are opportunistic feeders and keen predators, anything that looks edible is fair game, and those flies that attract attention and appear to be a vulnerable food source are the most successful. Bass bugs are without peer when it comes to attracting a bass's attention while suggesting a living creature struggling at the water's surface.