National Insect Week returns in 2022
(Ancient Greek - di = sheath ; pteron = wing)
Recognised by having just one pair wings, the second pair are modified into halteres, which act as balancing organs
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.