taxonID	type	description	language	source
1ED0B9737287594392BADC5E7237781A.taxon	description	Fig. 10 A	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
1ED0B9737287594392BADC5E7237781A.taxon	diagnosis	Diagnosis. Small species, male length 4.8 – 5.4 mm. Synthlipsis very narrow, <1 / 10 of vertex width. Labrum sided by pair of tufts of setae. Labial prong slightly longer than third labial article, originating proximally on article. Fore femur without stridulatory area.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
1ED0B9737287594392BADC5E7237781A.taxon	distribution	Distribution. Argentina (Bachmann 1971). Bolivia (Truxal 1953). Brazil: AL [new record], AM (White 1879; Truxal 1953; Nieser 1975; Barbosa and Nessimian 2013 a; Barbosa and Rodrigues 2013), BA [new record], CE (Truxal 1953; Nieser 1975; this work), GO (Truxal 1957), MG (Valbon et al. 2021), MS (Truxal 1953), MT (Heckman 1998), PA (Truxal 1953; Barbosa and Nessimian 2013 a), PB (Truxal 1953; Nieser 1975), PE (Truxal 1953; Nieser 1975; this work), PI [new record], RN (Truxal 1953; Nieser 1975), SP (Castanhole et al. 2013; Pereira et al. 2015 a), TO (Truxal 1957). Guyana (Truxal 1953). Paraguay (Truxal 1953). Peru (Truxal 1953). Suriname (Nieser 1975). Trinidad & Tobago (Nieser and Alkins-Koo 1991).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
D46207D77FED598DA24206D81185B05C.taxon	description	Fig. 10 B	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
D46207D77FED598DA24206D81185B05C.taxon	diagnosis	Diagnosis. Large species, male length 7.8 – 8.6 mm. Synthlipsis wide, nearly 1 / 2 of vertex width. Labial prong much longer than third labial article, originating slightly after half of article. Fore femur slightly widened at apex, with ~ 17 ridges in a triangular stridulatory area.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
D46207D77FED598DA24206D81185B05C.taxon	distribution	Distribution. Brazil: AM (Barbosa and Nessimian 2013 a), PI [new record], PR (Jaczewski 1928). Peru (Truxal 1953). Puerto Rico (Fieber 1851). U. S. Virgin Islands (Barber 1939).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
AA31CBDC26455A848B94039AF95D41CC.taxon	description	Fig. 10 C	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
AA31CBDC26455A848B94039AF95D41CC.taxon	diagnosis	Diagnosis. Medium to large species, male length 6.8 – 7.2 mm. Synthlipsis wide, slightly <1 / 2 of vertex width. Labial prong shorter than third labial article, originating proximally on article. Fore trochanter with a conspicuous process pointing backwards. Fore femur without stridulatory area. Middle tibia widened at apex.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
AA31CBDC26455A848B94039AF95D41CC.taxon	distribution	Distribution. Argentina (Berg 1879). Bolivia (Truxal 1953). Brazil: CE [new record], MT (Heckman 1998), PA (Barbosa and Nessimian 2013 a; Nobre et al. 2019), PE [new record], PR (Jaczewski 1928), SC (Truxal 1953). Chile (Kirkaldy 1899 a). Paraguay (Truxal 1953). The record from Venezuela (Kirkaldy 1904) is questionable.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6DFEEC39566B5B0C8A68D6398ACFE5F0.taxon	description	Fig. 10 D	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6DFEEC39566B5B0C8A68D6398ACFE5F0.taxon	diagnosis	Diagnosis. Medium-sized species, male length ~ 5.9 mm. Synthlipsis wide, slightly> 1 / 2 of vertex width. Labial prong subequal to slightly shorter than third labial article, originating proximally on article. Fore femur with weak stridulatory area containing 4 – 6 ridges.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6DFEEC39566B5B0C8A68D6398ACFE5F0.taxon	distribution	Distribution. Brazil: BA [new record], MG (Nieser and Pelli 1994; Nieser and Melo 1997; Carrenho et al. 2020).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
52F110C9E4875FE18CBB680E2FC96208.taxon	description	Fig. 10 E	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
52F110C9E4875FE18CBB680E2FC96208.taxon	diagnosis	Diagnosis. Very small species, male length 3.7 – 4.3 mm. Synthlipsis narrow, 1 / 4 of vertex width). Labial prong subequal in length to third labial article, originating proximally on article. Blackish brown hoof print-like pattern at hemelytra in dorsal view. Fore femur with wide apex, without stridulatory area.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
52F110C9E4875FE18CBB680E2FC96208.taxon	distribution	Distribution. Brazil: AL [new record], BA [new record], CE [new record], GO (Barbosa and Dias-Silva 2017), MG (Nieser and Pelli 1994; Nieser and Melo 1997; Melo and Nieser 2004; Barbosa and Rodrigues 2013; Carrenho et al. 2020), MS (Barbosa et al. 2010 c), PA (Barbosa et al. 2010 a; Barbosa and Nessimian 2013 a), RJ (Ribeiro et al. 2010), SE [new record].	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
15DAE9C7F3C358ABAC75FB90DF77F1C8.taxon	description	Fig. 10 F	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
15DAE9C7F3C358ABAC75FB90DF77F1C8.taxon	diagnosis	Diagnosis. Medium-sized species, male length 5.2 – 6.0 mm. Synthlipsis narrow, ~ 1 / 3 of vertex width. Labial prong with variable shape, longer than third labial article, originating proximally on article. Fore femur not widened at apex; stridulatory area subtriangular, with 10 – 18 ridges.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
15DAE9C7F3C358ABAC75FB90DF77F1C8.taxon	distribution	Distribution. Brazil: CE [new record], GO (Truxal 1957), MG (Truxal 1957; Nieser and Melo 1997; Vianna and Melo 2003; Melo and Nieser 2004), PI (Takiya et al. 2016; this work), SE [new record]. Guyana (Truxal 1953). Haiti (Truxal 1953). Paraguay (Truxal 1953). Peru (Truxal 1953). U. S. Virgin Islands (Rogers and Cruz-Rivera 2021). Venezuela (Truxal 1953).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
4FBBEF2C83E859E88F1D064C124F6AB4.taxon	description	Fig. 10 G	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
4FBBEF2C83E859E88F1D064C124F6AB4.taxon	diagnosis	Diagnosis. Medium-sized species, male length 5.5 – 6.2 mm. Synthlipsis wide, slightly <1 / 2 of vertex width. Labial prong arc-shaped, distinctly longer than third labial article, originating distally on article. Fore femur apex widened; stridulatory area subtriangular, with 17 ridges.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
4FBBEF2C83E859E88F1D064C124F6AB4.taxon	distribution	Distribution. Barbados (Nieser 1967). Bolivia (Kirkaldy 1899 d). Brazil: AL [new record] AM (Nieser 1970), PA (Nieser 1970), PE [new record]. Colombia (Kirkaldy 1899 c). Costa Rica (de la Torre-Bueno 1906). Cuba (Nieser 1967). Ecuador (Kirkaldy 1899 c). Guadeloupe (Kirkaldy 1904). Hawaiian Islands (Kirkaldy 1910). Honduras (Truxal 1953). Jamaica (Kirkaldy 1900). Martinique (Kirkaldy 1904). Mexico (Champion 1901). Panama (Kirkaldy 1899 b). Paraguay (Truxal 1953). Peru (Truxal 1953). Puerto Rico (Fieber 1851). St. Barthélemy (Lethierry 1881). St. Vincent & The Grenadines (Uhler 1893). U. S. Virgin Islands (Fieber 1851). Records from North America north of Mexico are erroneous.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6AD6274E1B5C5B6588FAE11B38506F8F.taxon	description	Fig. 10 H	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6AD6274E1B5C5B6588FAE11B38506F8F.taxon	diagnosis	Diagnosis. Medium to large species, male length 4.6 – 5.4 mm. Synthlipsis narrow, slightly <1 / 2 of vertex width. Labial prong straight, much longer than third labial article, originating distally on article. Fore femur with apex widened; stridulatory area subtriangular, with 11 – 14 ridges.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
6AD6274E1B5C5B6588FAE11B38506F8F.taxon	distribution	Distribution. Argentina (Kirkaldy 1904). Bonaire (Nieser 1967). Brazil: AM (Barbosa and Nessimian 2013 a), GO (Truxal 1957), MA (Truxal 1953), MT (Nieser 1970), PA (Nieser 1970; Barbosa and Nessimian 2013 a; Nobre et al. 2019), PE [new record], TO (Truxal 1957), RJ (Kirkaldy 1904; Ribeiro et al. 1998, 2010; Nessimian and Ribeiro 2000; Barbosa et al. 2010 c), SE [new record]. Cayman Islands (Truxal 1953). Colombia (Truxal 1953). Costa Rica (Truxal 1953). Cuba (Uhler 1884). Curacao (Nieser 1967). Guadeloupe (Nieser 1967). Haiti (Truxal 1953). Jamaica (Truxal 1953). Martinique (Truxal 1953). Mexico (Uhler 1884). Nicaragua (López et al. 1998). Panama (Truxal 1953). Peru (Truxal 1953). Puerto Rico (Fieber 1851). St. Martin (Nieser 1967). Trinidad & Tobago (Nieser and Alkins-Koo 1991). United States (Uhler 1884). Venezuela (Truxal 1953). U. S. Virgin Islands (Fieber 1851).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
C321E7BADB5A5427807E93E86F7C4292.taxon	description	Fig. 10 I	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
C321E7BADB5A5427807E93E86F7C4292.taxon	diagnosis	Diagnosis. Medium-sized species, male length 5.8 – 6.0 mm. Synthlipsis narrow, ~ 2 / 5 of vertex width. Tylus inflated and pubescent. Labial prong longer than third labial article, originating proximally on article. Fore femur narrowed at apex; stridulatory area subtriangular, with 14 ridges. Dark nodule on abdominal ventral laterotergite I.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
C321E7BADB5A5427807E93E86F7C4292.taxon	distribution	Distribution. Brazil: BA [new record], GO (Barbosa and Dias-Silva 2017), PI (Takiya et al. 2016), RJ (Barbosa et al. 2010 c).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8CFD20338B4A5A0DAE0EDE0E3C23DD63.taxon	description	Fig. 10 J	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8CFD20338B4A5A0DAE0EDE0E3C23DD63.taxon	diagnosis	Diagnosis. Small species, male length 3.4 – 4.0 mm. Synthlipsis narrow, ~ 1 / 10 tenth of vertex width. Labial prong subequal to slightly longer than third labial article, originating medially on article. Fore femur narrowed at apex, without stridulatory area.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8CFD20338B4A5A0DAE0EDE0E3C23DD63.taxon	distribution	Distribution. Argentina (Bachmann 1962). Bolivia (Truxal 1953). Brazil: AL [new record], AM (Truxal 1953; Nieser 1970; Barbosa and Nessimian 2013 a), BA [new record], CE (Truxal 1953; this work), MG (Nieser and Melo 1997; Melo and Nieser 2004; Barbosa and Rodrigues 2013), MS (Floriano et al. 2013), MT (Heckman 1998), PA (Truxal 1953; Nieser 1970; Barbosa and Nessimian 2013 a), PB (Truxal 1953), PE (Truxal 1953), PI (Takiya et al. 2016), PR (Jaczewski 1928), RJ (Ribeiro et al. 1998, 2010), RR (Barbosa and Nessimian 2013 a), RS (Truxal 1953; Kleerekoper 1955), SE [new record], SP (Truxal 1953), TO (Truxal 1957). Colombia (Roback and Nieser 1974). French Guiana (Kirkaldy 1904). Guyana (Truxal 1953). Paraguay (Truxal 1953). Suriname (Nieser 1968). Trinidad & Tobago (Nieser and Alkins-Koo 1991). Venezuela (Truxal 1953).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
07FA7AB6C5AC5CAB90201E5F0EDFE7C5.taxon	description	Fig. 10 K	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
07FA7AB6C5AC5CAB90201E5F0EDFE7C5.taxon	diagnosis	Diagnosis. Medium to large species, male length 6.2 – 7.2 mm. Synthlipsis wide, ~ 1 / 2 of vertex width. Labial prong longer than third labial article, originating proximally on article. Fore femur with apex narrowed; stridulatory area oblong, with 17 – 23 ridges. First article of middle tarsus deeply emarginated.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
07FA7AB6C5AC5CAB90201E5F0EDFE7C5.taxon	distribution	Distribution. Brazil: AL [new record], AM (Nieser 1970; Barbosa and Nessimian 2013 a), BA [new record], CE (Truxal 1953; this work), GO (Barbosa and Dias-Silva 2017), MG (Nieser and Melo 1997; Melo and Nieser 2004; Gutiérrez et al. 2017 a, b), PA (Truxal 1953; Barbosa and Nessimian 2013 a), PB (Truxal 1953), PE (Truxal 1953; this work), PI (Takiya et al. 2016; this work), RJ (Truxal 1953; Barbosa et al. 2010 c), RN (Truxal 1953), SE [new record].	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8C03B9ACF6C25C569B27E17206FDBB57.taxon	description	Fig. 10 L	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8C03B9ACF6C25C569B27E17206FDBB57.taxon	diagnosis	Diagnosis. Medium to large species, male length 5.9 – 7.1 mm. Synthlipsis narrow, 1 / 6 to 1 / 5 of vertex width. Tylus flat-sulcate. Labial prong distinctly shorter than third labial article, originating proximally on article. Fore femur apex narrowed, without stridulatory area. Fore tarsus robust and dilated, with orthogonal-angulated claws.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
8C03B9ACF6C25C569B27E17206FDBB57.taxon	distribution	Distribution. Argentina (Truxal 1953). Bolivia (Truxal 1953). Brazil: AL [new record], AM (Rico et al. 2010; Barbosa and Nessimian 2013 a), CE (Truxal 1953; Barbosa et al. 2010 c; this work), MG (Truxal 1953; Nieser and Melo 1997; Melo and Nieser 2004; Barbosa et al. 2010 c), PA (Truxal 1953; Andrade 1992; Barbosa and Nessimian 2013 a), PB (Truxal 1953), PE (Truxal 1953; this work), PI (Takiya et al. 2016; this work), RJ (Truxal 1953; Barbosa et al. 2010 c), RN (Truxal 1953), SE [new record], SP (Castanhole et al. 2013; Pereira et al. 2015 a), TO (Truxal 1957). Paraguay (Truxal 1953). Peru (Truxal 1953). Venezuela (Herrera 2005).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
B6D3E2EF4D8A5C378CE43D5557DFC36B.taxon	description	Fig. 10 N	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
B6D3E2EF4D8A5C378CE43D5557DFC36B.taxon	diagnosis	Diagnosis. Male length 15 – 16 mm. Wide rectangular punctuated area on scutellum. Middle femur with short and dark pubescence; anteapical protuberance weakly developed. Apex of metaxyphus variable, acute to spatulated.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
B6D3E2EF4D8A5C378CE43D5557DFC36B.taxon	distribution	Distribution. Brazil: BA [new record], ES (Kirkaldy 1904), MG (Kirkaldy 1904; Nieser and Melo 1997; Goulart et al. 2002; Vianna and Melo 2003; Pelli et al. 2006; Souza et al. 2006; Barbosa et al. 2017), RJ (Henriques-Oliveira and Nessimian 2010; Ribeiro et al. 2010; Cordeiro and Moreira 2015; Barbosa et al. 2017), SP (Barbosa et al. 2017).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
1CF9F5265B165AC9BD987C90191F3413.taxon	description	Fig. 10 O	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
1CF9F5265B165AC9BD987C90191F3413.taxon	diagnosis	Diagnosis. Male length 15.3 – 16.8 mm. Deeply punctuated area widely distributed on scutellum. Middle femur with long pubescence and robust anteapical protuberance. Apex of metaxyphus triangular.	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
1CF9F5265B165AC9BD987C90191F3413.taxon	distribution	Distribution. Brazil: AL [new record], ES (Barbosa et al. 2017), MG (Barbosa et al. 2017).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
86D1416C3DEC55DAB39F1F612FF641E2.taxon	description	Fig. 10 P, Q	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
86D1416C3DEC55DAB39F1F612FF641E2.taxon	diagnosis	Diagnosis. Male length 5.2 – 5.3 mm. Ocular commissure> 1 / 3 of eye width. Scutellum with hyaline apex; ventral surface of middle trochanter with a group of ensiform bristles. Hemelytra of brachypterous specimens with medial longitudinal hyaline stripe wide, tapering from base of hemelytra up to coastal margin in membrane suture; wide range of hemelytral process stripe, 25 % up to 40 % of hemelytral length; hemelytral process shorter than membrane length (Fig. 9 A).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
86D1416C3DEC55DAB39F1F612FF641E2.taxon	distribution	Distribution. Argentina (Mazzucconi 2008). Brazil: AL [new record], BA (Moreira et al. 2016; this work), CE (Takiya et al. 2016; this work), GO (Barbosa and Dias-Silva 2017), MG (Barbosa and Rodrigues 2013; Gutiérrez et al. 2017 b; Novais et al. 2017), MT (Barbosa and Giehl 2014), PE (Truxal 1949, this work), PI (Barbosa and Rodrigues 2013), RJ (Cordeiro and Moreira 2015), SE [new record].	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
0EE1C5BC0FBD55FB988E0E1E53317AEA.taxon	description	Fig. 10 R	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
0EE1C5BC0FBD55FB988E0E1E53317AEA.taxon	diagnosis	Diagnosis. Medium-sized species, male length 5.2 – 5.4 mm. Ocular commissure 1 / 2 of eye width. Ventral surface of third labial article pubescent. Scutellum with hyaline apex. Fore femur with a short spiniform seta. Ventral surface of middle trochanter with a patch of thin setae. Hemelytra of brachypterous specimens with medial longitudinal hyaline stripe narrow, slightly tapering from base of hemelytra up to membrane suture; hemelytral process stripe short, 20 – 30 % of hemelytral length; hemelytral process slightly shorter than membrane length (Fig. 9 B).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
0EE1C5BC0FBD55FB988E0E1E53317AEA.taxon	distribution	Distribution. Brazil: AL [new record], CE (Truxal 1949; this work), GO (Barbosa and Dias-Silva 2017), MS (Floriano et al. 2013), MT (Barbosa and Giehl 2014), PA (Nieser 1970; Barbosa et al. 2010 b, 2012), PE (Truxal 1949), RJ (Ribeiro et al. 2010), RR (Barbosa et al. 2012; Barbosa and Rodrigues 2013), SP (Castanhole et al. 2013; Pereira et al. 2015 a, 2015 b). Colombia (Padilla-Gil 2014). Peru (Truxal 1949). Suriname (Nieser 1968).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
9C28E17B49E95FA4A837C9031473123E.taxon	description	Fig. 10 S	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
9C28E17B49E95FA4A837C9031473123E.taxon	diagnosis	Diagnosis. Small species, male length 4.1 – 4.2 mm. Ocular commissure longer than 1 / 2 of eye width. Scutellum with 1 / 2 of its length hyaline. Ventral surface of middle trochanter smooth. Hemelytra of brachypterous specimens with claval commissure expanded, hyaline, reaching the anterior margin of membrane; medial longitudinal hyaline stripe very wide, sinuous, with same width from base of hemelytra up to coastal margin in membrane suture; hemelytral process stripe large, 20 – 30 % of hemelytral length; hemelytral process slightly longer than membrane length (Fig. 9 C)	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
9C28E17B49E95FA4A837C9031473123E.taxon	distribution	Distribution. Argentina (López-Ruf et al. 2003). Bolivia (Truxal 1949). Brazil: AM (White 1879; Truxal 1949; Nieser 1970; Pereira and Melo 2007; Barbosa et al. 2012; Barbosa and Rodrigues 2013), BA [new record], GO (Nieser 1970; Barbosa and Dias-Silva 2017), MG (Melo and Nieser 2004; Barbosa and Rodrigues 2013), MS (Floriano et al. 2013), MT (Barbosa and Giehl 2014), PA (Truxal 1949; Nieser 1970; Andrade 1992; Barbosa et al. 2012), RJ (Ribeiro et al. 2010), RO (Truxal 1949), SE [new record], SP (Castanhole et al. 2013; Pereira et al. 2015 a), TO (Truxal 1957). Colombia (Roback and Nieser 1974). Ecuador (Kirkaldy 1899 c). Guyana (Truxal 1949). Suriname (Nieser 1968).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
A9AA80B84FB75DC8A881F212B1C92E3B.taxon	description	Fig. 10 M	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
A9AA80B84FB75DC8A881F212B1C92E3B.taxon	diagnosis	Diagnosis. Medium-sized, ~ 8 mm long. Vertex / synthlipsis ratio ~ 2.7. Lateral margins of pronotum straight and divergent. Genital capsule with two caudoventral protuberances; apex of paramere not bifurcated (Fig. 8 A).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
A9AA80B84FB75DC8A881F212B1C92E3B.taxon	distribution	Distribution. Argentina (Bachmann 1963). Brazil: AL [new record], CE [new record], ES (Bachmann 1963), GO (Truxal 1957), MG (Melo and Nieser 2004; Barbosa and Nessimian 2013 b), MT (Nieser 1970), PA (Barbosa and Nessimian 2013 b; Nobre et al. 2019), PE [new record], PI (Barbosa and Nessimian 2013 b; Takiya et al. 2016), RJ (Hungerford 1926, 1933; Ribeiro et al. 1998, 2010; Barbosa and Nessimian 2013 b), RS (Bachmann 1963; Barbosa and Nessimian 2013 b), SE [new record], SP (Barbosa and Nessimian 2013 b), TO (Truxal 1957). Paraguay (Hungerford 1933).	en	Jordão, Rafael, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo (2025): Survey of the Notonectidae (Insecta, Hemiptera, Heteroptera, Nepomorpha) from northeastern Brazil. ZooKeys 1233: 245-288, DOI: 10.3897/zookeys.1233.120598
