Lychas serratus is a species of scorpion that is endemic to the island of Mauritius in the Indian ocean.

It was found on Coin de Mire, a northern island of Mauritius;[3] its discovery rose hope in the conservation sector.

It measures 4–5 cm (1.6–2.0 in) and weighs around 3 g (0.11 oz).

It hides in crevices or under tree bark.

It is mainly nocturnal and has a painful sting, although not deadly.