Charmus laneaus is a species of non-venomous scorpion in the family Buthidae endemic to Sri Lanka.

Mesosoma, carapace, metasoma and telson of the male is black.

There is a reddish yellow longitudinal strip over tergites I to VI.

Chelicerae fingers are reddish yellow with yellowish teeth.

Manus with dark reticulated patterns on both dorsum and ventrum.