argentatus- group

Diagnosis (after Bayer 2012): Males with very long, filiform embolus, which is at least 2x as long as tegulum. Conductor long (ca. as long as tegulum), narrow, sclerotised and with slightly broadened base (Bayer 2012, figs 2a–c), the latter ca. three times broader than median section.

Females with very large, distinctly broad and flat copulatory ducts (Bayer 2012, figs 2h, 5c). 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.