In synonymy:
Tecmessa O. Pickard-Cambridge, 1882 = Chthonos Coddington, 1986 (Coddington, 1986: 33, replacement name, preoccupied)
Homonym replaced:
Tecmessa O. Pickard-Cambridge, 1882 -- see Chthonos Coddington, 1986 - in Coddington, 1986
Transferred to other genera:
Chthonos tetrabuna (Archer, 1965) -- see Ogulnius