Order Opiliones Sundevall, 1833 - harvestmen Suborder Laniatores Thorell, 1876 - armored harvestmen Infraorder Grassatores Kury, 2002 Superfamily Samooidea Sørensen, 1886 Family Biantidae Thorell, 1889 Subfamily Stenostygninae Roewer, 1913 Genus Stenostygnusᵀ Simon, 1879