Requested reference
Senglet, A. (2004). Copulatory mechanisms in Zelotes, Drassyllus and Trachyzelotes (Araneae, Gnaphosidae), with additional faunistic and taxonomic data on species from southwest Europe. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 77(1-2): 87-119. doi:10.5169/seals-402861 -- Show included taxa