title: Occurrence of Thanatus atratus Simon, 1875 (Araneae: Philodromidae) in Poland
abstract: Abstract The paper presents data on the occurrence of Thanatus atratus in Poland. The long-lasting confusion in Polish and European literature about the existence of 2 similar species T. atratus / T. vulgaris in Poland is clarified. Diagnostic images of T. atratus reproductive organs of both sexes are presented.
journal: Biological Letters