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BiologyAdult beetles emerge around mid-May to mid-June, and the females lay their eggs whilst perched in low foliage. Each egg is held between the hind legs and a 'pot' made around it with the beetle's own droppings. This pot is then dropped into the leaf litter under the bush. The eggs hatch within three to four weeks. The larvae also construct pots for themselves out of droppings and this is thought to act as a defence mechanism. When danger threatens the larva retreats into its pot. Before pupation, the larva seals the pot. The adult beetles emerge from their pots, after a total development period of between 12 - 21 months, by cutting a hole at one end.