Australian water mites of the genus Hydrachna Müller, with the description of five new species (Acari: Hydrachnidia: Hydrachnidae) Author Smit, Harry text Zootaxa 2014 3827 2 170 186 journal article 45299 10.11646/zootaxa.3827.2.3 afea86b1-c1b9-4707-8972-61fcb1246bf3 1175-5326 225232 F7FB55C7-DAA7-47DA-A04D-27B98D6D09AF Hydrachna triscutata Lundblad, 1947 Material examined. Western Australia . 1/0/0, Mc Kenzie Spring, Millstream-Chichester NP, 21º 20’17.52” S 117º 12’37.79” E , 17-viii-1994 . Remarks. The male from this study is a bit larger (L/W 1568/1206, dorsal plate L/W 1407/884), but matches the description of Lundblad (1947) well. Previously known only from one male from New South Wales .