For the first time a hypothesis of homology is proposed for the macrosetae which compose
the armature of the distal truncus penis of the Gonyleptoidea. Previous attempts to name …

In many Opiliones (notably the Laniatores) the five most anterior opisthosomal tergites are
fused with the carapace forming the so called dorsal scutum (DS)(Latreille 1804; Simon …

The genua Roquettea Mello-Leitão, hitherto monotypic and known from Brazilian state of
Pará, is rediagnosed, the type species, Roquettea singularis is redescribed, including a …

The first cladistic analysis of the Tricommatinae is presented here based on a matrix with 88
terminals and 117 characters. The subfamily, hitherto with 28 genera and 53 species, is not …

The cosmetids are conspicuous harvestmen, remarkably diverse in size, shape and colour.
However, the effectiveness of all these morphological traits for diagnosing groups is scarcely …

The troglomorphic harvestman Otilioleptes marcelae gen. nov., sp. nov. from the basaltic
cave Doña Otilia, Payunia region, Mendoza Province, Argentina, is described. Its systematic …

Background The taxonomy of family Cosmetidae is in as unsatisfactory state. The genera
have been historically erected based on trivial features and do not represent natural groups …

Amendments are made to inconsistencies, mistakes and omissions in the catalogue of
American Laniatores by Kury (2003). Discrepancies between dates given in Kury (2003) and …

To facilitate identification of harvestmen of the family Cosmetidae in Central America, we
developed dichotomous keys that distinguish the 33 known genera and the 133 described …

The genus Platymessa was originally described by Mello-Leitão and diagnosed following
the Roewerian system. It originally included two species from the Colombian Andes …