Veliidae (Insecta, Heteroptera, Gerromorpha) from southeastern Brazil: three new species from Rio de Janeiro State, a new species group for Neotropical Rhagovelia Mayr, and notes on distribution and synonymy

microvelia nelsoni sp. nov., m. takiyae sp. nov., and rhagovelia mangaratiba sp. nov. are described. rhagovelia scitula and r. whitei are transferred from the robusta group to the new whitei group. rhagovelia denticulata is synonymized under r. scitula. microvelia longipes, oiovelia brasiliensis, rhagovelia sooretama, r. trianguloides, r. vaniniae, and stridulivelia quadrispinosa are recorded for the first time from rio de janeiro state. additional new municipality records in rio de janeiro state are presented for microvelia braziliensis, m. ioana, m. mimula, m. pulchella, paravelia basalis, p. itatiayana, rhagovelia accedens, r. agra, r. aiuruoca, r. elegans, r. hambletoni, r. henryi, r. itatiaiana, r. lucida, r. macta, r. modesta, r. novana, r. scitula, r. tenuipes, r. tijuca, r. triangula, and r. zela. corrections are presented for the previously published distributions of rhagovelia aiuruoca, r. lucida, r. macta, and r. triangula.