in quest of the best web sites for collectors
Insects on Stamps
Biology Unit (American Topical Association)
The Biology Unit is dedicated to the international cooperative study of biological postage stamps and related material. The journal Biophilately covers new zoological and botanical stamp issues worldwide.
Beetles on Stamps
A site about beetles, illustrated by postage stamps: families, interest, curiosities, ...
Butterflies and Moths of Australia on Australian Stamps
A small topical reference collection with beautiful stamp illustrations.