New records of water mites of the family Arrenuridae from the Oriental region, with the description of one new species (Acari: Hydrachnidia) Author Smit, Harry 0000-0002-0376-6808 Naturalis Biodiversity Center, P. O. Box 9517, 2300 RA Leiden, the Netherlands. E-mail: harry. smit @ naturalis. nl, https: // orcid. org / 0000 - 0002 - 0376 - 6808 Author Pešić, Vladimir Department of Biology, University of Montenegro, Cetinjski put b. b., 81000 Podgorica, Montenegro. E-mail: vladopesic @ gmail. com, https: // orcid. org / 0000 - 0002 - 9724 - 345 X text Ecologica Montenegrina 2023 2023-09-19 66 1 10 http://dx.doi.org/10.37828/em.2023.66.1 journal article 10.37828/em.2023.66.1 2336-9744 13245987 urn:lsid:zoobank.org:pub:0C28A4B7-0582-4163-9B5C-531D69092710 Arrenurus gracilipes Piersig, 1906 Material examined — Thailand . 1/2/0, south-side Ubon Ratana Dam , Maha Sarakhan Province , 16°31.395 N 102°30.275 E , 182 m a.s.l. , 6 Nov. 2017 ; 0/1/0, small lake Huai Na Muang , E of Khemarat , Amnat Charoen Province , 16°02.149 N 105°15.860 E , 130 m a.s.l. , 8 Nov. 2017 ; 1/3/0, Sirindhom Reservoir , Ubon Ratchathani Province , 15°12.285 N 105°27.526 E , 149 m a.s.l. , 9 Nov. 2017 . Malaysia . 0/2/0, Lake Chini , Pahang , 3°26.103 N 102°55.801 E , 22 m a.s.l. , 11 Feb. 2009 . Distribution — Widespread in the Oriental region: Sumatra and/or Java ( Piersig 1906 ; Viets 1935 ), India ( Lundblad 1969 ), Myanmar ( Lundblad 1969 ). Furthermore, reported from Australia ( Smit 1997 , 2002 ).