Thieving wasps

New Zealand has 2 native species of gasteruptiid wasps, also known as signal wasps.
These wasps lay their eggs on the eggs of our native solitary bee species.
When the wasp larva hatches from its egg it eats the bee egg and then all the food that the female bee has left for her offspring.
Because of this thieving behaviour these wasps are called kleptoparasites ("klepto-" means "thief").