Can bug or insect bites dpread to different parts of the body?

Bites. Depends on the bug. Scabies are going to spread on the body, are very itchy, but usually found near fingers, belt and bra lines. Bed bugs are usually not spreading but as the person continues to get bit each night, the bites accumulate in number and seem to spread. Mosquitoes love exposed surfaces and thrive near water, tics usually bite once and then a rash spreads, fleas bite the lower legs.