Ok. So I saw what was the common belief of a fairy like in peter pan and stuff... BUT I DID NOT AGREE! So I spent like 40 minutes to draw a picture of what I believe would look more closely to a fairy. So this is what I ended up whit. A fairy is more bug like humanoid in my conception, so I mixed it with firefly's to give it the glow. Since they are insects it explains the size and probably how they evade human eyes. Also I cheated a bit by giving them a bit of fur like bees. There is in fact a species of bees were any worker can become a queen if mated in case problem arises. Its the same concept. So yea, a fairy is a humanoid insect with the hierarchy of bee's but tends to pass as firefly's... Picture downgraded the drawing a lot, but you get the idea right?