Genitalia of O. litoralis male, non-type (ZRC_ENT00007636.1, Singapore: Sungei Buloh Wetland Reserve). A Pygostyle in dorsal view B abdominal sternite IX in ventral view C paramere and volsella, right side, inner view D penisvalva, left side, outer view. Abbreviations: (for B, C) Cu – cuspis; Di – digitus; Tm – telomere; Bm – basimere; BmC – carina of lower basimere; Sp – spiculum; Vo – volsella. (for D) ADL – apicodorsal lobe; AP – apicoventral process; AVP – anteroventral process; DS – diagonal sclerotisation; SAL – subapical lamina; Vc – valviceps; Vu – valvura.