Othelosoma hepaticarum, the toffee flatworm, is a species of land planarian in the family Microplaninae endemic to South Africa.

The dorsal side is a dark brown color, and the ventral side can vary from a light, fawn-like color to an unpigmented white.

On the dorsal side there is a light brown or fawn midline; the pigment on the rest of the dorsal surface is slightly darker as it approaches the line's edge.

[2][3] Othelosoma hepaticarum is endemic to South Africa.

The type specimens were found in the Kwazulu-Natal province, in damp earth under liverworts and stones;[2] observations have additionally been made in other areas of the country such as within the Gauteng and Western Cape provinces.