Wasserinsekten nach Farbfotos erkannt

De schietmotten van de Benelux (Trichoptera)

Fleas – Siphonaptera

A key to the adults of British lacewings and their allies

A key to the families of British bugs (Hemiptera)

Psocids – Psocoptera

Plant Galls of the Netherlands, Belgium and Luxembourg

Het Geleedpotigenboek

Leven met parasieten

Plantengallen

Plant Galls of Europe Volume I – II – III

Lymeziekte – over teken en tekenbeten

Stick- and leaf insects of the world. – Phasmids

Blattlause

Blattminen

Die Kocherfliegen

Insects and thistles

Aphids predators