Stephanopis altifrons is a species of crab spider found in Australia.

Often hidden in crevices of tree bark, it is irregular in shape and camouflaged with the debris.

Recorded prey include members of the families Salticidae and Hersiliidae.

[1][2][3][4] According to Pickard-Cambridge, the single specimen used for the description of S. altifrons (the holotype) was dry-pinned rather than preserved in ethanol.

This may explain why the somatic characters were inadequately described, genitalic features were not mentioned at all, and the illustrations were insufficiently detailed, making it difficult for others to distinguish this species.