[2][3] Each antenna ends in a stinger that has evolved to resemble a scorpion's tail and it is connected to a venom gland.

[2][3] The sting was already reported in 1884 but researchers thought the pain only was caused by the sharpness of the antennae, as also known from some other beetles.

It was only confirmed in 2005 that it is venomous when a biologist was stung, comparing it to a bee sting, and subsequently studied it in detail.

In the other case a man experienced moderate pain directly after being stung and redness that only lasted for an hour.

[3] Onychocerus albitarsis has a head-and-body that is about 2 cm (0.8 in) long and has a variable mottled pattern in yellow-brown, black and white.