Molecular systematics of sclerosomatid harvestmen (Opiliones, Phalangioidea, Sclerosomatidae): Geography is better than taxonomy in predicting phylogeny

► Molecular phylogenies are reconstructed for sclerosomatid harvestmen (Opiliones). ► Phylogenetic results indicate that most major scerlosomatid groups are polyphyletic. ► Molecular clades typically correspond to biogeographically regionalized faunas. ► Morphological homoplasy is evident in both somatic and reproductive morphology.