Seven new species of Psechrus and additional taxonomic contributions to the knowledge of the spider family Psechridae (Araneae) Author Bayer, Steffen text Zootaxa 2014 2014-05-16 3826 1 1 54 journal article http://dx.doi.org/10.11646/zootaxa.3826.1.1 e7c519fb-b07e-452b-91a5-efdec51eb764 1175-5326 286429 B6414C18-599A-44CE-9FCA-F20C845DE79D argentatus- group Diagnosis (after Bayer 2012 ): Males with very long, filiform embolus, which is at least 2 x as long as tegulum. Conductor long (ca. as long as tegulum), narrow, sclerotised and with slightly broadened base ( Bayer 2012 , figs 2 a–c), the latter ca. three times broader than median section. Females with very large, distinctly broad and flat copulatory ducts ( Bayer 2012 , figs 2 h, 5 c). Spermathecal heads upon long ‘stalks’; spermathecal heads including stalks ca. four times longer than broad. The argentatus -group includes the two species Psechrus libeltii Kulczyński, 1908 and P. argentatus (Doleschall, 1857 ) and is distributed in Indonesia (except Java), Papua New Guinea , Malaysia and (Southern) Thailand .