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 Djeboa compressa K. Viets, 1914 ( Figs. 12A–F , 37E ) Djeboa multidentata compressa K. Viets 1914: 220 . Mideopsis ( Djeboa ) compressa Cook 1966: 231 . Material examined : Type series: SMF, Cameroon ; lectotype , here designated, K. Viets 43190, “ Kamerun , Manoka b. Duala, Bach, 11.11.1911 , Damköhler leg. 1270”; paralectotype female, K. Viets 43191, same data as holotype , “1271”. General features : Dorsal shield oval (L/W ratio 1.1), with medial depression; muscle scars anterior and posterior to postocularia with moderately pronounced thickenings, second pair of muscle scars located well within the dorsal depression; central portion of dorsal shield purple ( Fig. 37E ); gnathosomal bay V-shaped; tips of Cx-I not reaching frontal margin; medial margins of Cx-IV reduced to a median angle, approaching to each other, posterior margin of Cx-IV extending almost directly laterally. Palp ( Fig. 12D ): P-1 with a dorsal seta; P-2 inflated, with straight ventral and convexly bowed dorsal margin; P-3 ventral margin concave, dorsal margin usually with a pronounced indentation slightly distal to middle of the segment; P-4 slender, basally thickened, from here to anterior tip narrowed. Legs: I-L ( Fig. 12E ) with I-L-6 L/H ratio 2.7, distally thickened; IV-L: Fig. 12F . Discussion : Along with D. expansipalpis and D. gledhilli sp. nov. , both from Côte d’Ivoire , and D. globulipalpis sp. nov. from South Africa , D. compressa forms a species group characterized by the V-shaped gnathosomal bay and P-4 much longer than high. Distribution : Cameroon (Viets 1914), Liberia (Cook 1966).