New records of cave-inhabiting Gerromorpha (Insecta, Hemiptera, Heteroptera) from Brazil

Based on material collected in Brazilian caves, new records are presented for seven species of Gerromorpha (Insecta, Hemiptera, Heteroptera) belonging to the families Gerridae [ Brachymetra albinervus (Amyot & Serville, 1843); Cylindrostethus palmaris Drake & Harris, 1934], and Veliidae [ Microvelia ioana Drake & Hottes, 1952; Paravelia digitata Rodrigues & Moreira, 2016; Rhagovellia henryi Polhemus, 1997; R. robusta Gould, 1931; R. whitei (Breddin, 1898)]. Illustrations and notes on identification and habitat are presented for all species above.