New records of notoaturine water mites from New Zealand, with the description of five new species (Acari: Hydrachnidia: Notoaturinae) Author K, Harry Smit Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. & Museums Victoria Research Institute, Museums Victoria, GPO Box 666, Melbourne, VIC 3001 Author PešićK, Vladimir Department of Biology, University of Montenegro, Cetinjski put b. b., 81000 Podgorica, Montenegro. & Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. text Acarologia 2024 2024-04-19 64 2 499 524 http://dx.doi.org/10.24349/ncjl-r16p journal article 10.24349/ncjl-r16p 2107-7207 11449345 506BF0B4-DE41-41E4-ADED-4736B5FC0543 Genus Tryssaturus Hopkins, 1967 Diagnosis — Smit 2020, p. 413. A genus with one species known from New Zealand . A second species is described below. Remarks — Diagnosing genus Tryssaturus, Cook (1983) and later Smit (2020) stated that dorsal sclerites have a reticulate pattern, a character that is missing in the new species described in this paper. Moreover, the abovementioned authors stated that the female IV-leg-3 is with a distal extension with a short peg-like seta. In the female specimen collected in Caution Creek, neither the distal extension nor the peg-like seta on IV-leg-2 are present, while the distal extension on IV-leg-2 is weakly developed. These differences induced us to give a revised diagnosis of this genus. Revised diagnosis (after Smit 2020; modified) — Dorsum with an unpaired anteromedial and a posteromedial plate with two pairs of glandularia. Two pairs of laterodorsal platelets, the anterolateral with one pair of glandularia, the posterolateral without glandularia. A pair of free glandularia present between the laterodorsal platelets and the posteromedial plate. Male without a distinct cauda. Coxae confined to anterior half of idiosoma. Posterior margins of Cx-IV placed at right angles to midline; glandularia of Cxgl-4 well distanced from suture line Cx-III/IV. P2 with a few ventral denticles, P4 with mediodistal thickened seta. Legs not laterally compressed, without swimming setae. Male IV-leg modified: IV-leg-1 relatively long with numerous setae, IV-leg-2 with a distal extension, IV-leg with a large distal extension with a peg-like seta.