Macrosiagon sayi

Wedge-shaped beetles live a part of their life cycle as a parasite on other insects, most commonly bees or wasps.

The beetle lays its eggs on a flower. The eggs hatch almost immediately into small larvae that lie in wait for a visiting bee. The larva crawls onto the bee and rides it back to the hive, where it dismounts and seeks a cell occupied by a bee larva. It then enters the body of the bee larva and waits until the bee larva pupates. It eats the entire pupa, then pupates in its turn and completes its metamorphosis before emerging from the hive to mate and lay eggs. Clever? Creepy? You decide.

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