Common as muck, but come in 3 different colours, all the same species! (black, orange, creamy white) Omnivorous species which eats carrion and dung as well as vegetation. Prefers rotting veg to fresh, rarely does any damage (eats cat sh*t!) Often seen on freshly mown lawns and verges, in large numbers after daytime rain. (They do get bigger, up to 20 cm) ;)