[1] Forster described members of this subfamily as having the third and fourth tarsal claws with strong lateral processes equal to, or larger than the median prong.

[2] While Forster reported that egg guarding by females is a feature of the Sorensenellinae, Glauco Machado observed that a photograph on p56 of Ray and Lyn Forster's book Spiders of New Zealand and their Worldwide Kin[5] clearly showed a male specimen of Karamea guarding eggs, even though the caption states it is female.

Based on Forster's statement of egg guarding behaviour across Sorensenellinae, Machado reasoned that paternal rather than maternal care was likely to be the rule in this subfamily.

[6] Molecular studies using Sanger[7] and ultra conserved element[8] sequencing show Sorensenella forms a clade with its nearest relative Karamea,[7] [8] and these genera are estimated to have diverged from one another during the Cretaceous.

[7] While these studies affirm the close relationship between Soerensenella and Karamea, they do not support Forster's inclusion of Roeweria (now Lawrencella) and Speleomontia from South Africa in Sorensenellinae.