The water mites of the family Hygrobatidae (Acari, Hydrachnidia) in Italy Author Gerecke, Reinhard text Zootaxa 2021 2021-07-30 5009 1 1 85 http://dx.doi.org/10.11646/zootaxa.5009.1.1 journal article 10.11646/zootaxa.5009.1.1 1175-5326 5157635 3E5643F0-BBC2-45FA-83E5-07FEF6ECB690 Atractides ( s. str. ) walteri (K. Viets, 1925 ) (Figs 21 D; 26 E-F; 31 K) Material examined: Calabria : I 1086 , 1/1/0 slide; I 1087 , 1/3/0 (1/1/0 slide); Trentino-Alto Adige : sa 102, 0/1/0; sa 115, 0/1/0; sa 118 a, 0/2/0; Valle d’Aosta : I TG 13-10, 2/0/0. 6 sites, 12 specimens . Previously published records from Italy : Emilia-Romagna ( Gerecke & Di Sabatino 2013 , Cantonati et al. 2020 ); Trentino Alto Adige ( Lundblad 1956 , Crema et al. 1996 , Gerecke et al. 2009 , Gerecke & Di Sabatino 2013 ); Veneto ( Crema et al. 1996 ). Remarks: While the specimens from I 1087 are typical, those from I 1086 show the leathery, non-papillate integument type of populations previously attributed to A. coriaceus (K. Viets, 1925 ) . Molecular data do not support a separation of the two species (Blattner, pers. comm.). Habitat: Crenobiont. Springs of various type . In southern Italy only in two springs in beech forest at high elevation, 1700-1800 m . Distribution: Central-South Europe. In the Pollino mountains obviously a relictary element of springs at the highest elevations – no records from other South Italian mountain ranges, neither in Calabria / Basilicata , nor in the intensively studied Sicilian mountains. Subgenus Polymegapus K. Viets, 1926