A wide variety of insect species can be found in the Biesbosch, including moths, butterflies, beetles, dragon-flies, spiders etc. At least 20 sorts of butterflies can be seen and some of the unique types to be found in the Dordtse Biesbosch are listed below.

Hedge Brown (Pyronia tithonus), Painted Lady (Vanessa cardui), Orange-tip (Anthocharis cardamines), Peacock butterfly (Imachus io), Map Butterfly (Araschnia levana), Comma (Polygonia c-album). Small White (Pieris rapea).