116 days to go to Insect Week
The Linnean Society of London is the world’s oldest active biological society. Founded in 1788, the Society is named after the Swedish naturalist Carl Linnaeus (1707–1778) whose botanical, zoological and library collections have been in its keeping since 1829. As it moves into its third century the Society continues to play a central role in the documentation of the world’s flora and fauna – as Linnaeus himself did – recognising the continuing importance of such work to biodiversity conservation.
There are lots of contenders here – possibly the pretty red and blue rove beetle Paederus – very, very tiny amounts of its poison have been used to cure chronic ulceration in people. Ladybirds are pretty poisonous (and pretty) and can bleed foul-tasting poisonous brightly coloured blood from their knees.