Hoverfly
Hoverflies are harmless to most other animals despite their mimicry of the black and yellow stripes of wasps. They are a classic example of Batesian mimicry. The Batesian mimic is a sheep in wolf's clothing: it looks like something dangerous or which tastes disgusting, but in reality it is good to eat. Hover flies look roughly like little wasps, and their warning colouration is well-known to birds.