TABLE 1. List of Gerromorpha species recorded from Rio Grande do Norte, northeastern Brazil and their respective distributions in the Brazilian states, (!) = new state records.

Taxa	Distribution in Brazil by states*
Gerridae
Charmatometrinae
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* State abbreviations can be found in Materials and Methods.
Brachymetra albinervus (Amyot & Serville, 1843)	AM, PA, MA, CE, RN!, AL, SE, BA, MT, MG, ES, RJ, SP, RS
Cylindrostethinae
Cylindrostethus palmaris Drake & Harris, 1934	RR, AM, AP, PA, RO, MA, RN, AL, SE, BA, MT, MS, MG, ES, RJ, SP
Gerrinae
Limnogonus aduncus Drake & Harris, 1933	RR, AM, PA, RN!, PE, AL, SE, BA, MT, MS, MG, ES, RJ, SP, PR, SC
Limnogonus ignotus Drake & Harris, 1934	PA, RN!, PE, AL, SE, MT, DF, MS, MG, RJ, SC, RS
Limnogonus recurvus Drake & Harris, 1930	AM, PA, RO, MA, RN!, PE, AL, SE, BA, MT, MG, SP
Neogerris lubricus (White, 1879)	AM, AP, PA, RO, MA, PI, RN!, AL, SE, BA, MT, MS, MG, RJ, SP, RS
Neogerris lotus (Drake & Harris, 1934)	AM, PA, RN!, MT, DF
Halobatinae
Halobates micans Eschscholtz, 1822	AP, MA, PI, CE, RN, PB, PE, BA, RJ, SP, PR, SC
Microveliinae
Husseyella diffidens (Drake & Harris, 1933)	RN!, AL, SE, ES, SP
Microvelia longipes Uhler, 1894	RR, AM, PA, RN!, AL, BA, MS, MG, ES, RJ, SP, SC
Microvelia mimula White, 1879	AM, PA, MA, CE, RN!, AL, SE, MT, MS, MG, ES, RJ, SP, SC, RS
Microvelia pulchella Westwood, 1834	AM, PA, MA, PI, RN!, PE, AL, SE, BA, MS, MG, ES, RJ, SP, SC, RS
Microvelia venustatis Drake & Harris, 1933	AM, PA, MA, RN!, AL, SE, MT, MG, ES, RJ, SP, SC
Rhagadotarsinae
Rheumatobates c. schroederi Hungerford, 1954	AM, PA, PI, CE, RN, PE, AL, SE, MT, GO
Rheumatobates m. flavidus Drake & Harris, 1942	AM, PA, RO, RN!, PE, AL, SE, MT, MG, SP
Rheumatobates trinitatis (China, 1943)	RN!, AL, SE, ES
Trepobatinae
Halobatopsis platensis (Berg, 1879)	MA, PI, RN!, AL, SE, BA, MT, GO, MS, DF, MG, RS, RJ, SP, PR, RS
Ovatametra obesa Kenaga, 1942	AM, PA, RN!, AL, SE, BA
Hebridae
Hebrinae
Lipogomphus lacuniferus Berg, 1879	RN!, AL, MG
Hydrometridae
Hydrometrinae
Hydrometra argentina Berg, 1879	AM, AP, PA, RN!, PB, AL, SE, BA, MT, MS, MG, ES, RJ, SP, PR, SC, RS
Mesoveliidae
Mesoveliinae
Mesovelia amoena Uhler, 1894	AM, PA, RO, MA, CE, RN!, AL, SE, BA, MT, MG, ES, RJ, SP, PR
Mesovelia mulsanti White, 1879	AM, AP, PA, RO, MA, PI, RN!, CE, PE, AL, SE, BA, MT, GO, MS, MG, ES, RJ, SP, PR, SC, RS
Veliidae
Veliinae
Paravelia digitata Rodrigues & Moreira, 2016	RN, PE, BA
Platyvelia brachialis (Stål, 1860)	RR, PI, RN!, PE, AL, SE, MT, GO, MS, MG, ES, RJ, SP, SC
Stridulivelia tersa (Drake & Harris, 1941)	AM, PA, MA, RN!, AL, SE, MT, MG, ES
Rhagoveliinae
Rhagovelia brunae Magalh „es & Moreira, 2016	PA, MA, RN!, AL, SE
Rhagovelia tenuipes Champion, 1898	RR, AM, PA, MA, RN!, AL, SE, MT, MS, MG, ES, RJ, SP