The insectarium of The Natural History Museum introduces you to the largest number of species on earth: there are over a million insects and other arthropods. The insect house shows regional insects as well as similar tropical species, which often catch the eye with their fantastic shapes and a magnificent display of colour. There are also some living insects to be seen. The display cases provide you with an overview of the creation, the systematics, build and development of these animals. E.g.: the metamorphosis (transformation) from egg through larva and pupa to a full-grown animal (imago).

The 18 out of 29 orders of insects are shown in separate showcases, often situated in their biotope (imitation of natural habitat). E.g. a water showcase with waterinsects and dragonflies, a display case containing maybugs, june and july bugs. There are showcases showing flies, mosquitoes, bumblebees, ants, wasps and spider wasps

A splendid butterfly meadow in spring shows you butterflies like for example the garden white (related to Pieridae). Visitors can also view subterranean life in a display about the mole cricket, and where the grasshoppers lay their eggs. Special theme showcases pay attention to e.g. camouflage with insects or the migration of butterflies. All of which is accompanied by clear explanations. For enthusiasts, there's a 6-minute film on the life of the red wood ant.