Bees, Leeches, Pupae and Chrysalides, Caterpillars, Lugworms, Rag worms, Earthworms, Maggots, Silkworms, Fish fry and Fish eggs, Mealworms, Crickets, certain Parasites and destroyers of Noxious Pests, and some other insects sent between recognised institutions are allowed. You must use boxes that protect both the creatures and Royal Mail staff from harm. Use First Class as the minimum service and clearly label the package as
"URGENT - LIVING CREATURES". Mark the sender's name and address on the outer wrapping.