Family ERYMIDAE Van Straelen, 1925

PRELIMINARY REMARK

The phylogenetic position of Erymidae varies throughout the literature. For a long time the family has been included within the Astacidea Latreille, 1802 (Van Straelen 1925; Glaessner 1969; Aguirre-Urreta 1989; Schweigert et al. 2000; Garassino & Krobicki 2002; Crônier & Courville 2004; Feldmann & Titus 2006; Garassino & Schweigert 2006; Schweigert 2013; Charbonnier et al. 2013), whereas some more recent contributions recognised the family to belong to Glypheidea Zittel, 1885 (De Grave et al. 2009; Schweitzer et al. 2010; Wahle et al. 2012; Karasawa et al. 2013; Feldmann et al. 2015). Recent phylogenetic analysis byCharbonnier et al. (2015) questioned the assignment of Erymidae to Glypheidea. Following Hyžný et al. (2015), we consider the systematic position of the Erymidae as uncertain and do not list the taxonomic rank beyond the superfamily.Following Schram & Dixon (2004), we only include the Erymidae in a separate clade named Erymida.