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National Insect Week returns in 2022

British Arachnological Society

British Arachnological Society

The BAS is Britain's only charity devoted exclusively to the study and understanding of arachnids. Here you can find information on all things arachnological. Our emphasis is on British spiders but we also include other arachnids, particularly Harvestmen (opilionids), Pseudoscorpions and Scorpions

Did you know?

Sexiest

Female water snipe flies Atherix ibis clasp each other and cluster in big round aggregations on the end of branches overhanging rivers – males entering the swarms are mated repeatedly until they die. The females then lay their eggs in to the water – and all die still in their tight aggregations.