Two new minute theridiid species are described from montane forests in
Rwanda and Zaire and their genital morphology and relationships are d
iscussed. P. milleri is the second species in this genus after the typ
e species from Angola. R. calidus is the first afrotropical species in
an otherwise holarctic genus. It is closely related to the western pa
laearctic species R. neglectus (O.P.-Cambridge).