Martensolasma is a genus of harvestmen in the family Nemastomatidae with two described species (as of 2023).

[8] The genus Martensolasma was originally said to be distinct from Ortholasma and Dendrolasma by lacking a hood projecting over the chelicerae, and in exhibiting complete scutum magnum.

In the males, the penial setation is monomorphic, consisting of few very small, acute setae.

Additionally the male chelicerae has a tooth-like projections on proximal and median articles and pedipalpi haveh epigamic glands in patellae and tibiae.

(Adapted from Shear, 2006)[7] Later, M. catrina was differentiated from M. jocheni by the combination of characters from the scutal ornamentation, basal segment of chelicera, metatarsus II, tarsus II & the penial stylus.