Gerromorpha Popov, 1971 see Infraorder Gerromorpha Popov, 1971 Family Veliidae (Amyot & Serville, 1843) Subfamily Veliinae (Amyot & Serville, 1843) China & Usinger, 1949 Genus Steinovelia Polhemus & Polhemus, 1993 Steinovelia stagnalis (Burmeister, 1835)