Aquatic Coleoptera of North Oman, with description of new species of Hydraenidae and Hydrophilidae Author Ribera, Ignacio Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta 37, E- 08003 Barcelona, Spain; Author Hernando, Carles P. O. box 118, E- 08911 Badalona, Catalonia, Spain; e-mail: leptotyphlus @ gmail. com Author Cieslak, Alexandra Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta 37, E- 08003 Barcelona, Spain; text Acta Entomologica Musei Nationalis Pragae 2019 2019-06-24 59 1 253 272 journal article 8140 10.2478/aemnp-2019-0021 726682f3-9eac-4961-ac4d-d8b8679e8211 1804-6487 4488950 ABBA2B4F-8B60-41E2-B80B-45861F974B23 Hydaticus ( Prodaticus ) pictus (Sharp, 1882) Published records. BALFOUR- BROWNE (1951); BRANCUCCI (1985) . Material examined. Loc. 6: 3 ♁♁ 2 ♀♀ ; Loc.7 (observed, no specimen collected); Oman , Fallah Cave, 21–27.i.2001 , W. S. Giagang leg.: 2 spec. (one used for DNA extraction, voucher No. NHM-IR583, sequences published in RIBERA et al. 2008 ).