The Grassatores Kury, 2002 are the most diverse infraorder of the Laniatores. It includes over 3,700 species distributed mainly in the tropics[1] They are characterized by the male genitalia without musculature, operated by hydraulic pressure and by the double tarsal claws of posterior legs.
^Kury, A.B.(2003). Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Ibérica de Aracnología, vol. especial monográfico 1: 1-337.
External links
Classification of Opiliones A synoptic taxonomic arrangement of the order Opiliones, down to family-group level, including some photos of the families