The Ladybird Norns were created by Mummy and use a modified Golden Desert Norn genome. The aging receptors were modified in such a way that the Ladybird Norns live about seven hours.
The Ladybird Norns occupy Grendel slot L and can be obtained from the Ladybird web page at Mummy's Creatures, where Mummy also provides coloured Ladybird Norns.