New species and records of the genus Hercostomus Loew (Diptera: Dolichopodidae) from Thailand mangroves, with notes on the Hercostomus fauna of Singapore mangroves Author Samoh, Abdulloh Princess Maha Chakri Sirindhorn Natural History Museum (PSUNHM), Prince of Songkla University, Kho Hong, Hat Yai, Songkhla, Thailand, 90110 Author Grootaert, Patrick National Biodiversity Centre, NParks, Singapore; Lee Kong Chian Natural History Museum, National University of Singapore; Department of Entomology, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B- 1000 Brussels, Belgium & Princess Maha Chakri Sirindhorn Natural History Museum (PSUNHM), Prince of Songkla University, Kho Hong, Hat Yai, Songkhla, Thailand, 90110 text Zootaxa 2024 2024-04-30 5446 2 179 204 http://dx.doi.org/10.11646/zootaxa.5446.2.2 journal article 10.11646/zootaxa.5446.2.2 1175-5326 11101578 B1B73538-4AD4-4E0B-843F-74411F6E9AB3 Genus Hercostomus Loew, 1857 Hercostomus Loew, 1857: 9 . Type genus: Dolichopus Latreille, 1796 . Hercostomus Loew, 1857: 9 . Type-species: Sybistroma longiventris Loew, 1857 (original designation). Microhercostomus Stackelberg, 1949: 687 (as subgenus). Type species: Hercostomus ( Microhercostomus ) dilatitarsis Stackelberg, 1949 (original designation). Phalacrosoma Becker 1922: 44 . Type species: Phalacrosoma amoenum Becker [Oriental]. Steleopyga Grootaert & Meuffels, 2001b: 208 . Type species: Steleopyga dactylocera Grootaert & Meuffels, 2001b (original designation).