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 Mideopsides Lundblad, 1943 , nov. stat. Type species: Mideopsis gibberipalpis Lundblad, 1943 Diagnosis : Dorsal shields may or may not be fused anteriorly; surface of dorsal shield varying from plain (especially in the northern areas of its range) to various development of ornamentation and ridges; posterior suture lines of Cx-IV poorly developed; coxae not forming a medial suture line; no ridges extending anterolaterally from region of insertion of IV-L; Cxgl-2 lying anterior to genital field, but with the gland portion occasionally missing; large extensions of Cx-IV nearly cover openings for insertion of IV-L when viewed ventrally; three pairs of Ac; the two pairs of glandularia with long associated setae at posterior end of ventral shield with the two pairs of associated glands present; swimming setae present; palp not uncate; the typical two pair of small setae of P-4 located at the extreme proximal end of the segment, and may be located on a very small projection or none; except for the genital field, no sexual dimorphism of the idiosoma, legs or palp. Remarks : The projection of Cx-IV over the openings for insertion of IV-L plus the unique positioning of the two small setae of P-4 is unique and will easily separate the present genus from all others. Distribution : Generally neotropical but with one species extending into extreme southwestern USA .