Redescription of the male of <i>Pterotricha strandi</i> (Aranei: Gnaphosidae) with special emphasis on the structure of the palp
The male palp of the poorly known, ground spider, <i>Pterotricha strandi</i> Spassky, 1936 is described in detail. Several features of the palp have not been documented before in the Gnaphosidae, nor the entire Dionycha: 1) presence on stylus on the embolus, 2) embolus composed of embolus proper and paraembolus, and 3) presence of an opening inside tibial apophysis.