Language English Tropical Rainforest Photo: Biodôme OngletsDescriptionDistinguishing features This is a tiny, delicate black wasp, with a marked indentation between the thorax and abdomen (giving it a wasp waist). Reproduction After mating, the female of this parasitic insect lays each individual egg in a live aphid. The larva eats the aphid's insides, killing it and mummifying it. Once it has reached the adult stage, the new wasp cuts a hole in the aphid's body and emerges. Diet The adults eat honeydew (sap produced by aphids and scale insects) and flower nectar. The larvae are carnivorous. Predators The ants that defend aphid colonies are capable of killing these wasps. They may also be attacked by hyperparasitoid wasps (the parasites of parasites). Habitat They live in temperate zones around the world, in association with aphids. Ecology, behaviour These insects are excellent hunters of aphids, finding them even when they are widely dispersed. Because each female may lay many eggs (up to 300), aphidius may have a significant impact on an aphid population. This species is raised by suppliers of natural pest control agents for sale to greenhouse growers. French nameAphidius Scientific nameAphidius matricariaePhylumArthropodaClassInsectaOrderHymenopteraFamilyAphididaeSizeLength: 1 mmLife spanLife cycle: two and a half weeks at 21°C.