The Subject Classification and Geographical Categories are used here with the kind permission of Natural History Book Service Ltd , the world's leading supplier of books in natural sciences, http://www.nhbs.com

The first website of Pensoft Publishers was designed and hosted by Dr Gordon Ramel , http://www.insect-world.com

The initial structure of the present website was created by Dr Fritz Geller-Grimm, http://www.geller-grimm.de and after that designed and constructed by Dimo Nikolov .