National Insect Week returns in 2020
(Ancient Greek - ortho = sheath ; pteron = wing)
Often found in larger gardens where grass and native trees are allowed to go a little wild, feed on plants.
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.