The water mite family Mideopsidae (Acari: Hydrachnidia): a contribution to the diversity in the Afrotropical region and taxonomic changes above species level Author Pešić, Vladimir Author Cook, David Author Gerecke, Reinhard Author Smit, Harry text Zootaxa 2013 3720 1 1 75 journal article 10.11646/zootaxa.3720.1.1 5538d5c3-31c3-4ad6-89bc-8c9dc9eaaf1a 1175-5326 285029 E4F362CE-0F00-4C1D-9DF6-139F824815C9 Genus Phreatomideopsis Schwoerbel, 1986 Type species: Phreatomideopsis arrenuripalpis Schwoerbel, 1986 , by monotypy. Diagnosis : Female (male unknown): Dorsal shield plain and without any ornamentation, but with two very distinct, in diameter round apodemes medially from the anteriormost glandularia lying on the plate; most coxal suture lines well developed, but medial parts of line Cx-I/II little and medial suture of these plates little distinct in aged specimens; well developed ridges extending anterolaterally from region of insertion of IV-L; Cxgl-1 at posterolateral margin of Cx-II, Cxgl-2 lateral to anterior edge of gonopore; openings for insertion of IV-L without condyles; legs without swimming setae. Genital field transverse elliptical, directed posteroventrally; gonopore surrounded by a membranous area medially forming stronger lips. In lateral part, three elongate Ac on oval basal sclerites closely in touch, possibly fused, to each other. These acetabula laterally flanked by a longish sclerite anteriorly embracing Ac-1 and posteriorly reaching to mid Ac-3, bearing 3–5 fine setae. Palp: ventral side of P-4 lacking either setae or projections; P-5 terminating in three heavy, separated claw-like setae. Remarks : This genus is certainly not closely related to the genera from neotropical South America . It shares with Xystonotus the lack of swimming setae and position of Cxgl-2 but otherwise is not similar. Distribution : Known only from interstitial waters of a stream in the austral region of Chile .