taxonID	type	description	language	source
314187C4B673FF8D1FA8E3FDFD72F831.taxon	description	(Fig. 11 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B673FF8D1FA8E3FDFD72F831.taxon	distribution	Distribution. Bolivia (Hungerford 1928). Brazil: Amazonas, Pará. Ecuador. Peru (Hungerford 1948). Distribution in Pará. Belém (Hungerford 1948).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E58DFC71FDEA.taxon	description	(Fig. 12 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E58DFC71FDEA.taxon	distribution	Distribution. Brazil: Amazonas (Nieser 1970 a), Maranhão (Sousa et al. 2024), Mato Grosso, Pará (Hungerford 1948). Distribution in Pará. Unknown (Hungerford 1948).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E58DFC71FDEA.taxon	discussion	Comments. Hungerford (1948) recorded this species from “ Para, Brazil ” without giving any details. The collecting locality is also absent from his map (Hungerford 1948: plate XX).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E74CFA9BFC28.taxon	description	(Fig. 13 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E74CFA9BFC28.taxon	distribution	Distribution. Brazil: Pará (White 1879; Hungerford 1928, 1948; Lundblad 1928 a; Nieser 1970 a). Distribution in Pará. Prainha (White 1879; Hungerford 1928, 1948; Lundblad 1928 a; Nieser 1970 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E74CFA9BFC28.taxon	discussion	Comments. Hungerford (1948: plate XX) included Bolivia and the Brazilian states of Goiás and Rio Grande do Norte when mapping the distribution of H. h. hesperia. However, he did not mention examining any material from these areas and Nieser (1975) doubted that specimens from these localities belonged to this subspecies.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E0C2FC20F925.taxon	description	(Fig. 3 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E0C2FC20F925.taxon	distribution	Distribution. Brazil: Amazonas, Pará (Nieser & Chen 2006). Distribution in Pará. Belterra, Santarém (Nieser & Chen 2006).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E10EFD6DFAAC.taxon	description	(Fig. 9 C – D)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8C1FA8E10EFD6DFAAC.taxon	distribution	Distribution. Aruba. Bonaire & Klein Bonaire. Curaçao & Klein Curaçao (Nieser 1969 a). Brazil: Pará (Nieser 1970 a), Paraíba (Sailer in Hungerford 1948). Colombia. Suriname. Trinidad & Tobago. Venezuela (Sailer in Hungerford 1948). Distribution in Pará. Quatipuru (Nieser 1970 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8B1FA8E20BFBD3FAD4.taxon	description	(Fig. 5 A)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8B1FA8E20BFBD3FAD4.taxon	distribution	Distribution. Bolivia (Hungerford 1927). Brazil: Amazonas (White 1879; Lundblad 1928 b; Deay 1935; Hungerford 1948; Nieser 1977; Reiss 1977), Pará (Nieser 1977; present study), Tocantins (Nieser 1977). Colombia (Roback & Nieser 1974). Distribution in Pará. Alenquer (present study), Aveiro (Nieser 1977; present study), Belterra (Nieser 1977), Curuá (present study), Itaituba (Nieser 1977; present study), Mojuí dos Campos (present study), Monte Alegre (Nieser 1977; present study), Óbidos (present study), Oriximiná (Nieser 1977; present study), Rurópolis (present study), Santarém (Nieser 1977; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8B1FA8E20BFBD3FAD4.taxon	discussion	Comments. Bachmann (1979) did not examine the material recorded from Paraguay by Deay (1935) and Hungerford (1948) as T. selecta but suspected that it belonged to T. (F.) s. tarahui Bachmann, 1979. Material from the Brazilian state of São Paulo reported by Nieser & Melo (1997) might also belong to this subspecies.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B672FF8B1FA8E20BFBD3FAD4.taxon	materials_examined	Material examined. BRAZIL, Pará: Município de Alenquer, Lago Auerana, 02 ° 01 ' 40 " S 54 ° 49 ' 07 " W, 07 / VII / 2023, S. E. Santos col. (4 ♂, 4 ♀); Lago Preto, 02 ° 02 ' 42 " S; 54 ° 48 ' 57 " W, 07 / VII / 2023, S. E. Santos col. (18 ♂, 31 ♀); Lago da Buraca, 02 ° 02 ' 19 " S 54 ° 49 ' 27 " W, 05 / VII / 2023, S. E. Santos col. (2 ♂, 1 ♀); Nova Aurora, 02 ° 00 ' 59 " S; 54 ° 50 ' 11 " W, 05 / VII / 2023; S. E. Santos col. (1 ♂); Fazenda São Francisco, 02 ° 00 ’ 51 ” S / 54 ° 48 ’ 59 ” W, 06 / VII / 2023, S. E. Santos col. (7 ♂, 2 ♀). Município de Aveiro, Cametá, 03 ° 27 ' 08 " S; 55 ° 51 ' 35 " W, 06 / II / 2022, M. V. Nascimento col. (7 ♂, 11 ♀). Município de Curuá, Município de Curuá, Lago Paraíso, 01 ° 53 ' 01 " S; 55 ° 06 ' 29 " W, 27 / IX / 2022, S. E. Santos col. (24 ♂, 35 ♀); Poça Sr. Ermenegildo, 01 ° 52 ’ 54 ” S / 55 ° 06 ’ 36 ” W, 27 / IX / 2022, S. E. Santos col. (8 ♂, 6 ♀); Açude Cá te espero, 01 ° 52 ’ 18 ” S / 55 ° 46 ’ 09 ” W, 27 / IX / 2022, S. E. Santos col. (1 ♂, 11 ♀). Município de Itaituba, Miritituba, 04 ° 17 ' 46 " S; 55 ° 58 ' 16 " W, 10 / II / 2022, M. V. Nascimento col. (3 ♂, 5 ♀); Poça Lago Bom Jardim, 04 ° 16 ' 33 " S; 56 ° 00 ' 18 " W, 27 / VII / 2022, S. E. Santos col. (1 ♂). Município de Mojuí dos Campos, Porto Alegre, 02 ° 52 ' 31 " S; 54 ° 23 ' 32 " W, 08 / X / 2022, (3 ♂, 1 ♀), S. E. Santos col. Município de Monte Alegre, Estrada Santana do Tapará, 02 ° 09 ' 51 " S 54 ° 27 ' 22 " W, 24 / IV / 2023, S. R. M. Couceiro col. (2 ♂, 2 ♀). Município de Óbidos, Lago Geretepaua, 01 ° 54 ' 03 " S; 55 ° 32 ' 01 " W, 31 / V / 2023, S. E. Santos col. (1 ♂). Município de Oriximiná, Lago Ururiá, 01 ° 47 ' 18 " S 55 ° 52 ' 22 " W, 12 / VI / 2019, L. A. Oliveira col. (1 ♂); Tanque Patty Chouli, 01 ° 44 ' 01 " S; 55 ° 47 ' 39 " W, 06 / XI / 2023, S. E. Santos col. (5 ♂, 3 ♀); Lago Iripixi, 01 ° 46 ' 50 " S; 55 ° 50 ' 45 " W, 12 / VI / 2019, L. A. Oliveira col. (1 ♂). Município de Rurópolis, Barreiras, 04 ° 06 ' 56 " S; 55 ° 41 ' 11 " W, 08 / II / 2022, M. V. Nascimento col. (39 ♂, 62 ♀); Santarenzinho, 04 ° 10 ' 15 " S; 55 ° 50 ' 16 " W, 09 / II / 2022, M. V. Nascimento col. (2 ♂, 1 ♀). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, E. C. Oliveira col. (8 ♂, 10 ♀); idem, except 27 / VII / 2021, S. E. Santos col. (7 ♂, 5 ♀); Poça Curuá-Una, 02 ° 49 ' 03 " S 54 ° 17 ' 56 " W, 05 / VI / 2023, S. E. Santos col. (3 ♂, 1 ♀); Escola da Floresta, 02 ° 30 ' 38 " S; 54 ° 56 ' 09 " W, 12 / I / 2023, S. E. Santos col. (6 ♂, 15 ♀); Lago Mapiri, 02 ° 25 ' 28 " S; 54 ° 44 ' 47 " W, 18 / II / 2020, E. C. Oliveira col. (1 ♂); Rio Tapajós UFOPA, 02 ° 24 ’ 59 ” S / 54 ° 44 ’ 34 ” W, 08 / II / 2023, S. E. Santos col. (2 ♂); idem, except 03 / I / 2023, (2 ♂, 2 ♀); Igarapé do Costa, 02 ° 15 ' 14 " S 54 ° 38 ' 52 " W, 17 / VII / 2023, S. E. Santos col. (1 ♂); Suruacá, 02 ° 42 ' 17 " S 55 ° 10 ' 13 " W, 05 / II / 2022, M. V. Nascimento col (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B675FF8B1FA8E098FB9CF80E.taxon	description	(Fig. 8 G – L)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B675FF8B1FA8E098FB9CF80E.taxon	distribution	Distribution. Argentina (Bachmann 1962 a). Bolivia (Deay 1935). Brazil: Amazonas (Deay 1935; Hungerford 1948; Nieser 1977; Irmler & Junk 1982; Pereira & Melo 2007), Bahia, Ceará (Nieser 1977), Mato Grosso (Nieser 1977; Heckman 1998 a, 1998 b; Dias-Silva et al. 2010, 2020), Mato Grosso do Sul (Deay 1935; Hungerford 1948; Floriano et al. 2013), Minas Gerais (Deay 1935; Hungerford 1948; Nieser 1977; Nieser & Melo 1997; Pelli & Barbosa 1998; Barbosa 2002; Souza et al. 2006; Melo & Nieser 2004; Pelli et al. 2020), Pará (Deay 1935; Hungerford 1948; Nieser 1977), Paraíba (Nieser 1977), Pernambuco (Jaczewski 1933; Hungerford 1948; Nieser 1977), Rio Grande do Sul, Roraima, Santa Catarina, São Paulo, Tocantins (Nieser 1977). Colombia (Roback & Nieser 1974). Grenada (Uhler 1894). Panama (Nieser 1977). Paraguay (Lundblad 1928 b). Peru (Deay 1935). Suriname (Nieser 1970 a). Trinidad & Tobago (Deay 1935). Venezuela (Nieser 1969 a). Distribution in Pará. Alenquer (Nieser 1977), Belém (Deay 1935; Hungerford 1948), Belterra, Bragança, Curuá, Jacareacanga, Oriximiná, Quatipuru, Santarém, Tomé-açu (Nieser 1977).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B674FF891FA8E20FFB0DFDBF.taxon	description	(Fig. 8 C – F)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B674FF891FA8E20FFB0DFDBF.taxon	distribution	Distribution. Argentina (Bachmann 1962 a). Bolivia (Deay 1930). Brazil: Amazonas (White 1879; Deay 1935; Hungerford 1948; Irmler 1975; Nieser 1975, 1977), Pará (White 1879; Deay 1935; Hungerford 1948; Nieser 1977). Colombia (Roback & Nieser 1974). French Guiana (Nieser 1975). Guyana (Deay 1935). Panama (Nieser 1977). Suriname (Jaczewski 1931 a). Trinidad & Tobago (Hynes 1948). Distribution in Pará. Alenquer, Aveiro, Belterra, Itaituba, Óbidos (Nieser 1977), Santarém (Deay 1935; Hungerford 1948; Nieser 1977), Quatipuru (Nieser 1977), Rio Trombetas (White 1879; Deay 1935; Hungerford 1948).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B674FF891FA8E20FFB0DFDBF.taxon	discussion	Comments. Records from Grenada (Uhler 1894) correspond to T. incerta, whereas most of those from North America (Uhler 1894; Champion 1901; Osborn & Drake 1915; Jaczewski 1931 b) refer to T. mexicana Deay, 1930 (Deay 1935). Nieser (1977) provided the only reliable record of this species from Panama.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF891FA8E7BAFC8AFC49.taxon	description	(Fig. 6 C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF891FA8E7BAFC8AFC49.taxon	distribution	Distribution. Brazil: Amazonas, Pará (Nieser 1977). Suriname (Nieser 1975). Distribution in Pará. Monte Alegre (Nieser 1977).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF891FA8E6E9FE07FA6F.taxon	description	(Fig. 6 D)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF891FA8E6E9FE07FA6F.taxon	distribution	Distribution. Brazil: Amazonas (Lundblad 1928 b, Nieser 1975, 1977), Pará (Nieser 1977; present study). Peru (Sites 2023). Distribution in Pará. Aveiro, Jacareacanga (Nieser 1977), Santarém, Terra Santa (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF891FA8E6E9FE07FA6F.taxon	materials_examined	Material examined. Brazil, Pará, Município de Santarém, Igarapé do Rai, 02 ° 35 ' 35 " S; 54 ° 30 ' 18 " W, 13 / XI / 2019, S. E. Santos col. (27 ♂, 27 ♀); Terra Santa, Igarapé Aimê, 01 ° 54 ’ 33 ” S / 56 ° 28 ’ 38 ” W, 07 / IV / 2023, S. E. Santos col (1 ♂, 1 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF881FA8E0CAFEDFFF30.taxon	description	(Fig. 7 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF881FA8E0CAFEDFFF30.taxon	distribution	Distribution. Argentina (Bachmann 1962 a). Bolivia (Deay 1935). Brazil: Amazonas, Mato Grosso (Nieser 1975, 1977), Mato Grosso do Sul (Deay 1930), Minas Gerais (Nieser & Melo 1997; Melo & Nieser 2004; Pelli et al. 2006; Souza et al. 2006), Pará (Nieser 1977; present study), Pernambuco (Jaczewski 1933), São Paulo (Nieser & Melo 1997), Tocantins (Nieser 1975, 1977). Colombia (Roback & Nieser 1974). Ecuador (Nieser 1977). Paraguay (Lundblad 1928 b). Suriname (Nieser 1975). Distribution in Pará. Curuá (present study), Jacareacanga, Óbidos / Oriximiná (Nieser 1977), Santarém (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B677FF881FA8E0CAFEDFFF30.taxon	materials_examined	Material examined. Brazil, Pará, Município de Curuá, Igarapé da Neca, 01 ° 51 ' 59 " S; 55 ° 09 ' 57 " W, 27 / IX / 2022, S. E. Santos col. (16 ♂, 14 ♀); Barragem Mª Raimunda, 01 ° 46 ' 19 " S; 55 ° 09 ' 01 " W, 28 / IX / 2022, S. E. Santos col. (3 ♂, 2 ♀). Município de Santarém, Igarapé Juá, 02 ° 26 ' 40 " S; 54 ° 47 ' 21 " W, 28 - 29 / IX / 2023 (Pensilvânia), L. A. Oliveira col. (56 ♂, 67 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B676FF871FA8E23BFED8FF30.taxon	discussion	Comments. Truxal (1953) recorded Buenoa communis Truxal, 1953 from Pará based on specimens collected by A. M. Olalla in “ Lago Grande ”. The Lago Grande where Olalla collected is in western Amazonas state, not in Pará (Patterson 1992). Due to the lack of other records from the latter state, this species is excluded from the list below. Truxal (1953) also recorded the same species from the state of Paraíba based on specimens collected by Olalla in “ João Pessoa, River Juruá ”. This locality is near the Lago Grande in western Amazonas state, not in Paraíba (Patterson 1992).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B679FF861FA8E368FDB6F822.taxon	description	(Fig. 34 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B679FF861FA8E368FDB6F822.taxon	distribution	Distribution. Brazil: Amazonas (Nieser 1970 b; Barbosa & Nessimian 2013 a), Pará (Barbosa & Nessimian 2013 a). Distribution in Pará. Belterra, Itaituba (present study), Oriximiná (Barbosa & Nessimian 2013 a; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B679FF861FA8E368FDB6F822.taxon	materials_examined	Material examined. Brazil, Pará, Município de Belterra, Igarapé Aramanaí, 02 ° 42 ’ 56 ” S / 54 ° 59 ’ 59 ” W, 07 / XI / 2019, S. E. Santos col. (1 ♂, 4 ♀). Município de Itaituba, Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (1 ♂). Município de Oriximiná, Tanque Patty Chouli, 01 ° 44 ’ 01 ” S / 55 ° 47 ’ 39 ” W, XI / 2023, S. E. Santos col. (9 ♂, 3 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67BFF851FA8E355FC6AF853.taxon	description	(Fig. 41 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67BFF851FA8E355FC6AF853.taxon	distribution	Distribution. Brazil: Amazonas (Truxal 1953; Nieser 1970 b, 1975; Barbosa & Nessimian 2013 a), Pará (Barbosa & Nessimian 2013 a). Suriname (Nieser 1968). Distribution in Pará. Juruti, Oriximiná (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E58DFB84FAC2.taxon	description	(Fig. 33 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E58DFB84FAC2.taxon	distribution	Distribution. Argentina (Bachmann 1971). Bolivia (Truxal 1953). Brazil: Alagoas (Jordão et al. 2025), Amazonas (White 1879; Truxal 1953; Nieser 1975; Barbosa & Nessimian 2013 a), Bahia (Jordão et al. 2025), Ceará (Truxal 1953; Nieser 1975; Jordão et al. 2025), Goiás (Truxal 1957), Mato Grosso (Heckman 1998 a, 1998 b), Mato Grosso do Sul (Truxal 1953), Minas Gerais (Valbon et al. 2021), Pará (Truxal 1953; Barbosa & Nessimian 2013 a; present study), Paraíba (Truxal 1953; Nieser 1975), Pernambuco (Truxal 1953; Nieser 1975; Jordão et al. 2025), Piauí (Jordão et al. 2025), Rio Grande do Norte (Truxal 1953; Nieser 1975), São Paulo (Castanhole et al. 2013; Pereira et al. 2015 a), Tocantins (Truxal 1957). Guyana (Truxal 1953). Paraguay. Peru (Truxal 1953). Suriname (Nieser 1975). Trinidad & Tobago (Nieser & Alkins-Koo 1991). Distribution in Pará. Alenquer (present study), Almeirim (Barbosa & Nessimian 2013 a), Curuá, Itaituba (present study), Juruti (Barbosa & Nessimian 2013 a), Mojuí dos Campos, Monte Alegre, Óbidos (present study), Oriximiná (Barbosa & Nessimian 2013 a; present study), Parauapebas, Prainha (Barbosa & Nessimian 2013 a), Santarém (Truxal 1953; Barbosa & Nessimian 2013 a; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E58DFB84FAC2.taxon	discussion	Comment. Specimens from Rio Juruá, Brazil (Truxal 1953), and those reported by Nieser (1968, 1970 b) were later identified as Buenoa amnigenopsis (Nieser 1975).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E58DFB84FAC2.taxon	materials_examined	Material examined. Brazil, Pará, Município de Alenquer, Lago KM 11, 01 ° 51 ’ 40 ” S / 54 ° 42 ’ 08 ” W, 06 / XI / 2022, S. E. Santos col. (3 ♂, 1 ♀); Poça Campo Grande, 01 ° 48 ’ 23 ” S / 54 ° 46 ’ 37 ” W, 05 / XI / 2022, S. E. Santos col. (10 ♂, 13 ♀); Município de Curuá, Açude Cá te espero, 01 ° 52 ’ 18 ” S / 55 ° 46 ’ 09 ” W, 27 / IX / 2022, S. E. Santos col. (1 ♂); Município de Itaituba, Poça Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (14 ♂, 20 ♀); Lago Transamazônica, 04 ° 17 ’ 48 ” S / 56 ° 05 ’ 14 ” S, 27 / VII / 2022, S. E. Santos col. (7 ♂, 7 ♀). Município de Mojuí dos Campos, Mojuí dos Caboclos, 02 ° 42 ’ 03 ” S / 54 ° 41 ’ 01 ” W, 21 / I / 2020, S. E. Santos col. (1 ♂); Igarapé Manel, 02 ° 2 ’ 06 ” S / 54 ° 44 ’ 26 ” W, 24 / II / 2020, S. E. Santos col. (6 ♂, 13 ♀). Município de Óbidos, Igarapé Alegria, 01 ° 53 ’ 07 ” S / 55 ° 30 ’ 43 ” W, 30 / V / 2023, S. E. Santos col. (1 ♂, 1 ♀). Munícipio de Monte Alegre, Estrada Santana do Tapará, 02 ° 09 ’ 51 ” S / 54 ° 27 ’ 22 ” W, 24 / IV / 2023, S. R. M. Couceiro col. (1 ♂, 2 ♀). Município de Oriximiná, Lago Iripixi, 01 ° 46 ’ 50 ” S / 55 ° 50 ’ 45 ” W, 12 / VI / 2019, L. A. Oliveira col. (1 ♂); Tanque Patty Chouli, 01 ° 44 ’ 01 ” S / 55 ° 47 ’ 39 ” W, 06 / XI / 2022, S. E. Santos col. (5 ♂, 2 ♀). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, E. C. Oliveira col. (9 ♂, 3 ♀); Lago Mapiri, 02 ° 25 ’ 28 ” S / 54 ° 44 ’ 47 ” W, 18 / II / 2020, E. C. Oliveira col. (3 ♂, 3 ♀); idem, except 12 / IX / 2022, S. E. Santos col. (4 ♂, 3 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E063FDD0F929.taxon	description	(Fig. 27 A – F)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E063FDD0F929.taxon	distribution	Distribution. Brazil: Pará (present study), Rondônia (Barbosa & Nessimian 2013 a). Distribution in Pará. Belterra, Santarém (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF831FA8E063FDD0F929.taxon	materials_examined	Material examined. Brazil, Pará, Município de Belterra, Igarapé KM 115 BR 163, 03 ° 17 ’ 34 ” S / 54 ° 52 ’ 45 ” W, 23 / XI / 2019, S. E. Santos col. (2 ♀). Município de Santarém, Igarapé da Débora, 02 ° 44 ’ 27 ” S / 54 ° 26 ’ 01 ” W, 21 / X / 2019, S. E. Santos col. (3 ♂, 3 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF821FA8E204FC77FEA4.taxon	description	(Fig. 37 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67DFF821FA8E204FC77FEA4.taxon	distribution	Distribution. Argentina (Berg 1879). Bolivia (Truxal 1953). Brazil: Ceará (Jordão et al. 2025), Mato Grosso (Heckman 1998 a, 1998 b), Pará (Barbosa & Nessimian 2013 a; Nobre et al. 2019), Paraná (Jaczewski 1928), Pernambuco (Jordão et al. 2025), Santa Catarina (Truxal 1953). Chile (Kirkaldy 1899 a). Paraguay. Uruguay (Truxal 1953). Distribution in Pará. Canaã dos Carajás (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E489FDABFC9E.taxon	description	(Fig. 38 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E489FDABFC9E.taxon	distribution	Distribution. Bolivia (Truxal 1953). Brazil: Amazonas (Truxal 1953; Nieser 1970 b; Barbosa & Nessimian 2013 a), Goiás (Truxal 1957), Pará (Barbosa & Nessimian 2013 a; present study). Suriname (Nieser 1968). Distribution in Pará. Curuá, Itaituba (present study), Santarém (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E489FDABFC9E.taxon	discussion	Comment. Truxal (1953) recorded this species from the state of Paraíba based on specimens collected by A. M. Olalla in “ vic. João Pessoa, River Juruá ”. This locality is in western Amazonas state, not in Paraíba (Patterson 1992).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E489FDABFC9E.taxon	materials_examined	Material examined. Brazil, Pará, Município de Curuá, Barragem Maria Raimunda, 01 ° 46 ’ 19 ” S / 55 ° 09 ’ 01 ” W, 28 / IX / 2022, S. E. Santos col. (4 ♂, 3 ♀). Município de Itaituba, Poça Campo Belo, 04 ° 16 ’ 24 ” S / 56 ° 02 ’ 28 ” W, 26 / VII / 2022, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E6D4FDBFFA53.taxon	description	(Fig. 39 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E6D4FDBFFA53.taxon	distribution	Distribution. Brazil: Alagoas, Bahia, Ceará (Jordão et al. 2025), Goiás (Barbosa & Dias-Silva 2017), Mato Grosso do Sul (Barbosa et al. 2010 a), Minas Gerais (Nieser & Pelli 1994; Nieser & Melo 1997; Melo & Nieser 2004; Barbosa & Rodrigues 2013; Carrenho et al. 2020), Pará (Barbosa et al. 2010 a; Barbosa & Nessimian 2013 a; present study), Rio de Janeiro (Ribeiro et al. 2010), Sergipe (Jordão et al. 2025). Distribution in Pará. Canaã dos Carajás (Barbosa et al. 2010 a; Barbosa & Nessimian 2013 a), Capitão Poço (Barbosa & Nessimian 2013 a), Curionópolis (Barbosa et al. 2010 a; Barbosa & Nessimian 2013 a), Itaituba (present study), Parauapebas (Barbosa et al. 2010 a; Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E6D4FDBFFA53.taxon	materials_examined	Material examined. Brazil, Pará, Município de Itaituba, Lago São Tomé, 04 ° 15 ’ 27 ” S / 55 ° 58 ’ 40 ” W, 26 / VII / 2022, S. E. Santos col. (7 ♂, 5 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E312FB4FF90A.taxon	description	(Fig. 32 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF821FA8E312FB4FF90A.taxon	distribution	Distribution. Brazil: Pará (Barbosa & Nessimian 2013 a). Peru (Truxal 1953). Distribution in Pará. Vigia, Vigia / São Caetano de Odivelas (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF811FA8E258FC41FE48.taxon	description	(Fig. 30 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF811FA8E258FC41FE48.taxon	distribution	Distribution. Bolivia (Kirkaldy 1899 b). Barbados (Nieser 1967). Brazil: Alagoas (Jordão et al. 2025), Amazonas, Pará (Nieser 1970 b), Pernambuco (Jordão et al. 2025). Colombia (Kirkaldy 1899 c). Costa Rica (Torre-Bueno 1906). Cuba (Nieser 1967). Ecuador (Kirkaldy 1899 c). Guadeloupe (Kirkaldy 1904). Hawaiian Islands (Kirkaldy 1913). Honduras (Truxal 1953). Jamaica (Kirkaldy 1900). Martinique (Kirkaldy 1904). Mexico (Champion 1901). Panama (Kirkaldy 1899 d). Paraguay. Peru (Truxal 1953). Puerto Rico (Fieber 1851). St. Barthélemy (Lethierry 1881). St. Vincent & the Grenadines (Uhler 1893). U. S. Virgin Islands (Fieber 1851). Distribution in Pará. Óbidos / Oriximiná (Nieser 1970 b).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67CFF811FA8E258FC41FE48.taxon	discussion	Comment. Records in the Americas north of Mexico are erroneous.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF811FA8E4E5FB28FAC4.taxon	description	(Fig. 29 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF811FA8E4E5FB28FAC4.taxon	distribution	Distribution. Argentina (Kirkaldy 1904). Bonaire (Nieser 1967). Brazil: Amazonas (Barbosa & Nessimian 2013 a), Goiás (Truxal 1957), Maranhão (Truxal 1953; Jordão et al. 2025), Mato Grosso (Nieser 1970 b), Pará (Nieser 1970 b; Barbosa & Nessimian 2013 a; Nobre et al. 2019; present study), Pernambuco (Jordão et al. 2025), Rio de Janeiro (Kirkaldy 1904; Ribeiro et al. 1998; Nessimian & Ribeiro 2000; Barbosa et al. 2010 a; Ribeiro et al. 2010), Sergipe (Jordão et al. 2025), Tocantins (Truxal 1957). Cayman Islands. Colombia. Costa Rica (Truxal 1953). Cuba (Uhler 1884). Curaçao. Guadeloupe (Nieser 1967). Haiti. Jamaica. Martinique (Truxal 1953). Mexico (Uhler 1884). Nicaragua (Lopez et al. 1998). Panama. Peru (Truxal 1953). Puerto Rico (Fieber 1851). St. Martin (Nieser 1967). United States (Uhler 1884). U. S. Virgin Islands (Fieber 1851). Trinidad & Tobago (Nieser & Alkins-Koo 1991). Venezuela (Truxal 1953). Distribution in Pará. Belterra (Nieser 1970 b), Canaã dos Carajás (Barbosa & Nessimian 2013 a; Nobre et al. 2019), Itaituba (present study), Parauapebas (Barbosa & Nessimian 2013 a), Santarém (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF811FA8E4E5FB28FAC4.taxon	discussion	Comment. Records from the United States other than from Texas and Florida correspond to other species (Truxal 1953).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF811FA8E4E5FB28FAC4.taxon	materials_examined	Material examined. Brazil, Pará, Município de Itaituba, Poça Campo Belo, 04 ° 16 ’ 24 ” S / 56 ° 02 ’ 28 ” W, 26 / VII / 2022, S. E. Santos col. (12 ♂, 21 ♀); Poça Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (1 ♂). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, E. C. Oliveira col. (1 ♂); Poça Curuá-Una, 02 ° 48 ’ 29 ” S / 54 ° 17 ’ 44 ” W, 05 / VI / 2023, S. E. Santos col. (4 ♂, 6 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF801FA8E069FC84FDD8.taxon	description	(Fig. 40 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF801FA8E069FC84FDD8.taxon	distribution	Distribution. Argentina (Bachmann 1962 b). Bolivia (Truxal 1953). Brazil: Alagoas (Jordão et al. 2025), Amazonas (Truxal 1953; Nieser 1970 b; Barbosa & Nessimian 2013 a), Bahia (Jordão et al. 2025), Ceará (Truxal 1953; Jordão et al. 2025), Mato Grosso do Sul (Floriano et al. 2013), Minas Gerais (Nieser & Melo 1997; Melo & Nieser 2004; Barbosa & Rodrigues 2013), Pará (Truxal 1953; Nieser 1970 b; Barbosa & Nessimian 2013 a; present study), Paraíba (Truxal 1953), Paraná (Jaczewski 1928), Pernambuco (Truxal 1953), Piauí (Takiya et al. 2016), Rio de Janeiro (Ribeiro et al. 1998, 2010), Rio Grande do Sul (Truxal 1953, Kleerekoper 1955; SEMA-RS 2014), Roraima (Barbosa & Nessimian 2013 a), São Paulo (Truxal 1953), Sergipe (Jordão et al. 2025), Tocantins (Truxal 1957). Colombia (Roback & Nieser 1974). French Guiana (Kirkaldy 1904). Guyana (Truxal 1953). Paraguay (Truxal 1953). Peru (Zalom & Smilanick 1979). Suriname (Nieser 1968). Trinidad & Tobago (Nieser & Alkins-Koo 1991). Venezuela (Truxal 1953). Distribution in Pará. Afuá (Barbosa & Nessimian 2013 a), Alenquer (present study), Almeirim (Barbosa & Nessimian 2013 a), Aveiro (Nieser 1970 b), Benevides (Barbosa & Nessimian 2013 a), Curuá, Itaituba (present study), Juruti (Barbosa & Nessimian 2013 a), Monte Alegre (Nieser 1970 b; present study), Óbidos, Oriximiná, Prainha (Barbosa & Nessimian 2013 a), Quatipuru (Nieser 1970 b), Rio Ararão (tributary to Rio Tocantins) (Barbosa & Nessimian 2013 a), Santarém (Truxal 1953; Nieser 1970 b; Barbosa & Nessimian 2013 a; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF801FA8E069FC84FDD8.taxon	discussion	Comment. Peralta-Argomeda et al. (2024) overlooked the note published by Zalom & Smilanick (1979), in which B. communis and B. salutis were recorded from Peru.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67FFF801FA8E069FC84FDD8.taxon	materials_examined	Material examined. Brazil, Pará, Município de Alenquer, Poça Campo Grande, 01 ° 48 ’ 23 ” S / 54 ° 46 ’ 37 ” W, 05 / XI / 2022, S. E. Santos col. (2 ♂, 6 ♀). Município de Curuá, Açude Cá te espero, 01 ° 52 ’ 18 ” S / 55 ° 46 ’ 09 ” W, 27 / IX / 2022, S. E. Santos col. (1 ♂, 1 ♀). Município de Itaituba, Poça Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (3 ♂, 7 ♀). Município de Monte Alegre, Terminal hidroviário, 02 ° 00 ’ 34 ” S / 54 ° 04 ’ 13 ” W, 26 / IV / 2023, S. E. Santos col. (1 ♂). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 12 / IX / 2022, S. E. Santos col. (1 ♂); idem, except 27 / V / 2021, S. E. Santos col. (5 ♂); Lago Mapiri, 02 ° 25 ’ 28 ” S / 54 ° 44 ’ 47 ” W, 18 / II / 2020, E. C. Oliveira col. (6 ♂, 5 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E79EFA16FB50.taxon	description	(Fig. 31 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E79EFA16FB50.taxon	distribution	Distribution. Brazil: Alagoas (Jordão et al. 2025), Amazonas (Nieser 1970 b; Barbosa & Nessimian 2013 a), Bahia (Jordão et al. 2025), Ceará (Truxal 1953; Jordão et al. 2025), Goiás (Barbosa & Dias-Silva 2017), Minas Gerais (Nieser & Melo 1997; Melo & Nieser 2004; Gutiérrez et al. 2017 a, 2017 b), Pará (Truxal 1953; Barbosa & Nessimian 2013 a; present study), Paraíba (Truxal 1953), Pernambuco (Truxal 1953; Jordão et al. 2025), Piauí (Takiya et al. 2016; Jordão et al. 2025), Rio de Janeiro (Truxal 1953; Barbosa et al. 2010 a), Rio Grande do Norte (Truxal 1953), Sergipe (Jordão et al. 2025). Distribution in Pará. Belém (Truxal 1953), Benevides, Canaã dos Carajás (Barbosa & Nessimian 2013 a), Itaituba (present study), Parauapebas (Barbosa & Nessimian 2013 a), Santarém (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E79EFA16FB50.taxon	materials_examined	Material examined. Brazil, Pará, Município de Itaituba, Poça Campo Belo, 04 ° 16 ’ 24 ” S / 56 ° 02 ’ 28 ” W, 26 / VII / 2022, S. E. Santos col. (2 ♂, 9 ♀). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, S. E. Santos col. (1 ♂, 1 ♀); Poça Curuá-Una, 02 ° 48 ’ 29 ” S / 54 ° 17 ’ 44 ” W, 05. VI. 2023, S. E. Santos col. (2 ♂, 2 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E1E6FDA1F9CE.taxon	description	(Fig. 28 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E1E6FDA1F9CE.taxon	distribution	Distribution. Brazil: Goiás (Truxal 1957), Pará (Barbosa & Nessimian 2013 a; present study). Distribution in Pará. Belterra (present study), Parauapebas (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF801FA8E1E6FDA1F9CE.taxon	materials_examined	Material examined. Brazil, Pará, Município de Belterra, Igarapé KM 115 BR 163, 03 ° 17 ’ 34 ” S / 54 ° 52 ’ 45 ” W, 23 / XI / 2019, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF9F1FA8E364FD39FF31.taxon	description	(Fig. 35 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF9F1FA8E364FD39FF31.taxon	distribution	Distribution. Brazil: Amazonas (Nieser 1970 b; Pereira & Melo 2007; Barbosa & Nessimian 2013 a; Barbosa & Rodrigues 2013), Pará (Barbosa & Nessimian 2013 a; present study), Rondônia (Barbosa & Nessimian 2013 a). Suriname (Nieser 1968). Trinidad & Tobago (Nieser 1969 b). Distribution in Pará. Mojuí dos Campos (present study), São Miguel do Guamá (Barbosa & Nessimian 2013 a).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B67EFF9F1FA8E364FD39FF31.taxon	materials_examined	Material examined. Brazil, Pará, Município de Mojuí dos Campos, Igarapé Antonio Leite, 03 ° 09 ’ 06 ” S / 54 ° 50 ’ 28 ” W, 18 / X / 2019, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E43DFBD0FC02.taxon	description	(Fig. 36 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E43DFBD0FC02.taxon	distribution	Distribution. Argentina. Bolivia (Truxal 1953). Brazil: Alagoas (Jordão et al. 2025), Amazonas (Rico et al. 2010; Barbosa & Nessimian 2013 a), Ceará (Truxal 1953; Barbosa et al. 2010 a; Jordão et al. 2025), Minas Gerais (Truxal 1953; Nieser & Melo 1997; Melo & Nieser 2004; Barbosa et al. 2010 a), Pará (Truxal 1953; Andrade 1992; Barbosa & Nessimian 2013 a; present study), Paraíba, Pernambuco (Truxal 1953; Jordão et al. 2025), Piauí (Takiya et al. 2016; Jordão et al. 2025), Rio de Janeiro (Truxal 1953; Barbosa et al. 2010 a), Rio Grande do Norte (Truxal 1953), São Paulo (Castanhole et al. 2013; Pereira et al. 2015 a), Sergipe (Jordão et al. 2025), Tocantins (Truxal 1957). Paraguay. Peru (Truxal 1953). Venezuela (Herrera Millán 2005). Distribution in Pará. Alenquer (present study), Benevides (Barbosa & Nessimian 2013 a), Itaituba, Oriximiná (present study), Parauapebas (Andrade 1992), Santarém (Truxal 1953; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E43DFBD0FC02.taxon	materials_examined	Material examined. Brazil, Pará, Município de Alenquer, Poça Campo Grande, 01 ° 48 ’ 23 ” S / 54 ° 46 ’ 37 ” W, 05 / XI / 2022, S. E. Santos col. (1 ♂). Município de Itaituba, Lago Transamazônica, 04 ° 17 ’ 48 ” S / 56 ° 05 ’ 14 ” W, 27 / VII / 2022, S. E. Santos col. (3 ♂, 4 ♀); Poça Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (3 ♂). Município de Oriximiná, Poça Igarapé das Pedras, 01 ° 33 ’ 15 ” S / 55 ° 44 ’ 32 ” W, 07 / XII / 2022, S. E. Santos col. (24 ♂). Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, S. E. Santos col. (7 ♂, 7 ♀); Poça Curuá-Una, 02 ° 48 ’ 29 ” S / 54 ° 17 ’ 44 ” W, 05. VI. 2023, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E123FC25F9F9.taxon	description	(Fig. 23 A – D)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E123FC25F9F9.taxon	distribution	Distribution. Brazil: Alagoas (Jordão et al. 2025), Ceará (Truxal 1949; Jordão et al. 2025), Goiás (Barbosa & Dias-Silva 2017), Mato Grosso (Barbosa & Giehl 2014), Mato Grosso do Sul (Floriano et al. 2013), Pará (Nieser 1970 b; Barbosa et al. 2010 b, 2012; present study), Pernambuco (Truxal 1949), Rio de Janeiro (Ribeiro et al. 2010), Roraima (Barbosa et al. 2012; Barbosa & Rodrigues 2013), São Paulo (Castanhole et al. 2013; Pereira et al. 2015 a, 2015 b). Colombia (Padilla-Gil 2014). Peru (Truxal 1949). Suriname (Nieser 1968). Distribution in Pará. Juruti (Barbosa et al. 2012), Óbidos / Oriximiná (Nieser 1970 b), Oriximiná (Barbosa et al. 2012), Parauapebas (Barbosa et al. 2010 b), Santarém (Nieser 1970 b; present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9F1FA8E123FC25F9F9.taxon	materials_examined	Material examined. Brazil, Pará, Município de Santarém, Rio Curuá-Una, 02 ° 48 ’ 21 ” S / 54 ° 17 ’ 49 ” W, 05 / VI / 2023, S. E. Santos col. (5 ♂, 1 ♀); idem, except 06 / VI / 2023, (1 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9E1FA8E375FAD2FE34.taxon	description	(Fig. 17 A – D)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9E1FA8E375FAD2FE34.taxon	distribution	Distribution. Argentina (Bachmann 1962 c). Bolivia (Truxal 1949). Brazil: Amazonas (Truxal 1949; Nieser 1970 b; Barbosa et al. 2012; Barbosa & Rodrigues 2013), Mato Grosso (Dias-Silva et al. 2013; Barbosa & Giehl 2014; Giehl et al. 2018), Minas Gerais (Nieser & Melo 1997), Pará (Nieser 1970 b; Barbosa et al. 2012; present study). Colombia (Roback & Nieser 1974). Trinidad & Tobago (Hynes 1948). Venezuela (Menke & Truxal 1966). Distribution in Pará. Alenquer, Mojuí dos Campos, Óbidos (present study), Oriximiná (Nieser 1970 b; Barbosa et al. 2012; present study), Santarém (Barbosa et al. 2012; present study), São Miguel do Guamá (Barbosa et al. 2012), Tomé-açu (Nieser 1970 b).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B661FF9E1FA8E375FAD2FE34.taxon	materials_examined	Material examined. Brazil, Pará, Município de Alenquer, Lago Atumamirim, 02 ° 02 ’ 14 ” S / 54 ° 48 ’ 51 ” W, 05 / VII / 2023, S. E. Santos col. (2 ♂, 1 ♀). Município de Mojuí dos Campos, Porto Alegre, 02 ° 52 ’ 31 ” S / 54 ° 23 ’ 32 ” W, 08 / X / 2022, M. V. Nascimento col. (3 ♀). Município de Óbidos, Lago Geretepaua, 01 ° 54 ’ 03 ” S / 55 ° 32 ’ 01 ” W, 31 / V / 2023, S. E. Santos col. (4 ♂, 7 ♀). Município de Oriximiná, Tanque Patty Chouli, 01 ° 44 ” 01 ” S / 55 ° 47 ’ 39 ” W, 06 / XI / 2022, S. E. Santos col. (1 ♂). Município de Santarém, Igarapé do Costa, 02 ° 15 ’ 14 ” S / 54 ° 38 ’ 52 ” W, 18 / VII / 2023, S. E. Santos col. (2 ♂, 2 ♀); Rio Curuá-Una, 02 ° 48 ’ 21 ” S / 54 ° 17 ’ 49 ” W, 05 / VI / 2023, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E739FF3CF9E6.taxon	description	(Fig. 21 A – E)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E739FF3CF9E6.taxon	distribution	Distribution. Bolivia (Truxal 1949). Brazil: Amazonas (Truxal 1949; Nieser 1970 b; Barbosa et al. 2012; Barbosa & Rodrigues 2013), Mato Grosso (Nieser 1970 b; Heckman 1998 a, 1998 b; Barbosa & Giehl 2014), Pará (Nieser 1970 b; Barbosa et al. 2012; Cunha et al. 2015; Cunha & Juen 2017; present study), Rondônia (Barbosa et al. 2012). Suriname (Nieser 1968). Venezuela (Moreira et al. 2016). Distribution in Pará. Abaetetuba (Barbosa et al. 2012), Belterra (present study), Benevides (Nieser 1970 b; Barbosa et al. 2012), Irituia (Barbosa et al. 2012), Jacareacanga (Nieser 1970 b), Maracanã (Barbosa et al. 2012), Mojuí dos Campos (present study), Oriximiná (Barbosa et al. 2012; present study), Paragominas (Nieser 1970 b), Parauapebas, Primavera (Barbosa et al. 2012), Santarém (present study), Tailândia (Cunha et al. 2015; Cunha & Juen 2017), Terra Santa (present study), Vigia (Barbosa et al. 2012).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E739FF3CF9E6.taxon	materials_examined	Material examined. Brazil, Pará, Município de Belterra, igarapé KM 115 BR 163, 03 ° 17 ’ 34 ” S / 54 ° 52 ” 45 ” W, 23 / XI / 2019, S. E. Santos col. (9 ♂, 12 ♀); Igarapé Jatuarana, 03 ° 15 ’ 44 ” S / 54 ° 56 ' 37 " W, 11 / II / 2020, S. E. Santos col. (5 ♂, 5 ♀). Município de Mojuí dos Campos, Igarapé Manel, 02 ° 25 ’ 06 ” S / 54 ° 44 ’ 26 ” W, 24 / II / 2020, L. A. Oliveira col. (1 ♂, 1 ♀); Igarapé Terra Preta, 02 ° 43 ’ 09 ” S / 54 ° 40 ’ 20 ” W, 24 / II / 2020, L. A. Oliveira col. (1 ♂); Mojuí do Belarmino, 02 ° 44 ’ 12 ” S / 54 ° 47 ’ 00 ” W, 18 / II / 2023, A. S. Corrêa col. (13 ♂, 9 ♀); Terra de Areia, 02 ° 47 ’ 58 ” S / 54 ° 38 ’ 15 ” W, 24 / I / 2020, L. A. Oliveira col. (1 ♀). Município de Oriximiná, Cachoeira Jatuarana, 01 ° 39 ’ 10 ” S / 55 ° 42 ’ 30 ” W, 11 / VI / 2023, L. A. Oliveira col. (1 ♂); Igarapé do Monteiro, 01 ° 38 ’ 42 ” S / 55 ° 41 ’ 54 ” W, 08 / XII / 2022, L. A. Oliveira col. (4 ♂, 6 ♀). Município de Santarém, Igarapé Cucurunã, 02 ° 28 ’ 40 ” S / 54 ° 46 ’ 25 ” W, 29 / V / 2021, S. E Santos col. (2 ♂); idem local, 12 / I / 2023, (3 ♂, 4 ♀); Igarapé do Laranjal, 02 ° 32 ’ 47 ” S / 54 ° 55 ’ 27 ” W, 31 / I / 2024, L. A. Oliveira col. (1 ♂); idem local, 28 / II / 2024, L. A. Oliveira col. (1 ♀); Fazenda Experimental Ufopa, 02 ° 41 ’ 26 ” S / 54 ° 31 ’ 57 ” W, 14 / XII / 2022, S. E. Santos col. (21 ♂, 9 ♀); Igarapé Guaraná, 02 ° 46 ’ 25 ” S / 54 ° 23 ’ 20 ” W, 06 / III / 2020, S. E. Santos col. (1 ♂); Igarapé Jatobá, 02 ° 34 ’ 17 ” S / 54 ° 51 ’ 36 ” W, 10 / X / 2020, S. E. Santos col. (25 ♂, 13 ♀). Município de Terra Santa, Igarapé Aimê, 02 ° 05 ’ 27 ” S / 56 ° 29 ’ 02 ” W, 07 / IV / 2023, x S. E. Santos col. (10 ♂, 12 ♀).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E34CFC83F812.taxon	description	(Fig. 20 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E34CFC83F812.taxon	distribution	Distribution. Brazil: Amazonas (Nieser 1970 b), Pará (Nieser 1970 b, 1975). Guyana (Truxal 1949). Suriname (Nieser 1968). Distribution in Pará. Santarém (Nieser 1970 b, 1975).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B660FF9E1FA8E34CFC83F812.taxon	discussion	Comments. The descriptions and illustrations of M. hungerfordi provided by Nieser (1970 b, 1975) do not match this species. His material from the state of Amazonas corresponds in part or entirely to M. nieseri Barbosa, Ribeiro & Nessimian, 2012, whereas that from the state of Pará belongs partially or totally to M. siolii Barbosa, Nessimian & Takiya, 2015 (Barbosa et al. 2012, 2015).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B663FF9D1FA8E58DFBE3F84A.taxon	description	(Fig. 16 A – B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B663FF9D1FA8E58DFBE3F84A.taxon	distribution	Distribution. Argentina (López-Ruf et al. 2003). Bolivia (Truxal 1949). Brazil: Amazonas (White 1879; Truxal 1949; Nieser 1970 b; Pereira & Melo 2007; Barbosa et al. 2012; Barbosa & Rodrigues 2013), Bahia (Jordão et al. 2025), Goiás (Nieser 1970 b; Barbosa & Dias-Silva 2017), Mato Grosso (Barbosa & Giehl 2014), Mato Grosso do Sul (Floriano et al. 2013), Minas Gerais (Melo & Nieser 2004; Barbosa & Rodrigues 2013), Pará (Truxal 1949; Nieser 1970 b; Andrade 1992; Barbosa et al. 2010 b, 2012; present study), Piauí (Takiya et al. 2016), Rio de Janeiro (Ribeiro et al. 2010), Rondônia (Truxal 1949), São Paulo (Castanhole et al. 2013; Pereira et al. 2015 a), Sergipe (Jordão et al. 2025), Tocantins (Truxal 1957). Colombia (Roback & Nieser 1974). Guyana (Truxal 1949). Suriname (Nieser 1968). Distribution in Pará. Alenquer (Barbosa et al. 2012; present study), Aveiro (Nieser 1970 b; present study), Belém (Truxal 1949), Belterra, Curuá (present study), Curionópolis, Irituia (Barbosa et al. 2012), Itaituba (Nieser 1970 b; present study), Jacareacanga (Nieser 1970 b), Maracanã (Barbosa et al. 2012), Marituba (Nieser 1970 b), Melgaço (Barbosa et al. 2012), Mojuí dos Campos (Barbosa et al. 2012; present study), Monte Alegre, Óbidos (present study), Oriximiná (Nieser 1970 b; Barbosa et al. 2012; present study), Parauapebas (Andrade 1992; Barbosa et al. 2010 b, 2012), Rurópolis (present study), Santarém (Nieser 1970 b; Barbosa et al. 2012; present study), São João de Pirabas (Nieser 1970 b), Senador José Porfírio (Barbosa et al. 2012), Terra Santa (present study), Tomé-açu (Nieser 1970 b; Barbosa et al. 2012), Tucuruí, Vigia (Barbosa et al. 2012).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B663FF9D1FA8E58DFBE3F84A.taxon	materials_examined	Material examined. Brazil, Pará, Município de Alenquer, Lago Atumamirim, 02 ° 02 ’ 14 ” S / 54 ° 48 ’ 51 ” W, 05 / VII / 2023, S. E. Santos col. (6 ♂, 3 ♀); Lago Preto, 02 ° 02 ’ 42 ” S / 54 ° 48 ’ 57 ” W, 07 / VII / 2023, S. E. Santos col. (1 ♂, 1 ♀); Nova Aurora, 02 ° 00 ’ 59 ” S / 54 ° 50 ’ 11 ” W, 05 / VII / 2023, S. E. Santos col. (1 ♂); Valmir, 02 ° 00 ’ 29 ” S / 54 ° 54 ’ 26 ” W, 05 / VII / 2023, S. E. Santos col. (1 ♂). Município de Aveiro, Cametá, 03 ° 27 ’ 08 ” S / 55 ° 51 ’ 35 ” W, 06 / II / 2022, M. V Nascimento col. (1 ♀). Município de Belterra, Igarapé Aramanaí, 02 ° 42 ’ 56 ” S / 54 ° 59 ’ 59 ” W, 07 / XI / 2019, S. E. Santos col. (4 ♂, 3 ♀); Igarapé Jatuarana, 03 ° 15 ’ 44 ” S / 54 ° 56 ’ 37 ” W, 11 / II / 2020, S. E. Santos col. (1 ♂). Município de Curuá, Açude Cá te espero, 01 ° 52 ’ 18 ” S / 55 ° 46 ’ 09 ” W, 27 / IX / 2022, S. E. Santos col. (1 ♂). Município de Itaituba, Ponte Fonte Azul, 04 ° 17 ’ 07 ” S / 56 ° 04 ’ 07 ” W, 27 / VII / 2022, S. E. Santos col. (4 ♂, 7 ♀); Igarapé Sai Cinzas, 04 ° 16 ’ 04 ” S / 56 ° 07 ’ 37 ” W, 27 / VII / 2022, S. E. Santos col. (1 ♂); Lago Bom Jardim, 04 ° 16 ’ 33 ” S / 56 ° 00 ’ 18 ” W, 27 / VII / 2022, S. E. Santos col. (5 ♂, 6 ♀) Município de Mojuí dos Campos, Igarapé Terra Preta, 02 ° 43 ’ 09 ” S / 54 ° 40 ’ 20 ” W, 10 / II / 2020, LA. Oliveira col. (9 ♂, 13 ♀); idem, excet 24 / II / 2020, (1 ♂, 3 ♀); Porto Alegre, 02 ° 52 ’ 31 ” S / 54 ° 23 ’ 32 ” W, 08 / X / 2022, S. E. Santos col. (43 ♂, 43 ♀). Município de Monte Alegre, Estrada Santana do Tapará, 02 ° 09 ’ 51 ” S / 54 ° 27 ’ 22 ” W, S. R. M. Couceiro col. (1 ♂); Igarapé do Batata, 01 ° 59 ’ 23 ” S / 54 ° 03 ’ 00 ” W, 18 / VI / 2023, S. E. Santos col. (11 ♂, 7 ♀); idem, except 29 / VI / 2023, (6 ♂, 5 ♀). Município de Óbidos, Igarapé Alegria, 01 ° 53 ’ 07 ” S / 55 ° 30 ’ 43 ” W, 30 / V / 2023, S. E. Santos col. (7 ♂, 2 ♀); Igarapé Estrada da Campina, 01 ° 52 ’ 59 ” S / 55 ° 29 ’ 42 ” W, 30 / V / 2023, S. E. Santos col. (1 ♂, 2 ♀); Lago da Campina, 01 ° 52 ’ 09 ” S / 55 ° 28 ’ 09 ” W, 01 / VI / 2023, S. E. Santos col. (2 ♂, 3 ♀); Lago Geretepaua, 01 ° 54 ’ 03 ” S / 55 ° 32 ’ 01 ” W, 31 / V / 2023, S. E. Santos col. (5 ♂, 15 ♀). Município de Oriximiná, Igarapé da Eldra, 01 ° 45 ’ 07 ” S / 55 ° 50 ’ 24 ” W, 05 / XI / 2022, S. E. Santos col. (5 ♂, 8 ♀); Lago Iripixi, 01 ° 46 ’ 50 ” S / 55 ° 50 ’ 45 ” W, 12 / VI / 2019, S. E. Santos col. (3 ♂, 2 ♀); Sítio Tô de boa, 01 ° 40 ’ 29 ” S / 55 ° 47 ’ 37 ” W, 07 / XII / 2022, S. E. Santos col. (12 ♂, 3 ♀); Tanque Patty Chouli, 01 ° 44 ” 01 ” S / 55 ° 47 ’ 39 ” W, 06 / XI / 2022, S. E. Santos col. (5 ♂, 6 ♀). Município de Rurópolis, Santarenzinho, 04 ° 10 ' 15 " S / 55 ° 50 ' 16 " W, 09 / II / 2022, S. E. Santos col. (1 ♀). Município de Santarém, Amar Juá, 02 ° 26 ’ 56 ” S / 54 ° 47 ’ 53 ” W, 13 / IX / 2019, S. E. Santos col. (1 ♂, 1 ♀); Igarapé do Costa, 02 ° 15 ’ 14 ” S / 54 ° 38 ’ 52 ” W, 17 / VII / 2023, S. E. Santos col. (1 ♀); idem, except 18 / VII / 2023, (1 ♂, 2 ♀); Igarapé Guaraná, 02 ° 46 ’ 25 ” S / 54 ° 23 ’ 20 ” W, 06 / III / 2020, S. E. Santos col. (2 ♂, 1 ♀); Lago Escola da Floresta, 02 ° 30 ’ 38 ” S / 54 ° 56 ’ 09 ” W, 12 / I / 2023, S. E. Santos col. (1 ♂); Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, S. E. Santos col. (3 ♂, 3 ♀); Mapiri, 02 ° 25 ’ 28 ” S / 54 ° 44 ’ 47 ” W, 12 / IX / 2022, S. E. Santos col. (1 ♀); Rio Curuá-Una, 02 ° 49 ’ 01 ” S / 54 ° 17 ’ 52 ” W, 14 / XI / 2023, S. E. Santos col. (8 ♂, 1 ♀); Rio Curuá-Una, 02 ° 48 ’ 21 ” S / 54 ° 17 ’ 49 ” W, 05 / VI / 2023, S. E. Santos col. (4 ♂, 3 ♀); Rio Curuá-Una, 02 ° 48 ’ 56 ” S / 54 ° 17 ’ 59 ” W, 06 / VI / 2023, S. E. Santos col. (6 ♂, 1 ♀); Poça Curuá-Una, 02 ° 48 ’ 29 ” S; 54 ° 17 ’ 44 ” W, 05 / VI / 2023, S. E. Santos col. (3 ♂, 3 ♀). Município de Terra Santa, Costa do Cajual, 02 ° 06 ’ 32 ” S / 56 ° 30 ’ 26 ” W, 08 / IV / 2023, S. E. Santos col (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E58DFC68FE61.taxon	description	(Fig. 24 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E58DFC68FE61.taxon	distribution	Distribution. Brazil: Pará, Goiás, Minas Gerais (Barbosa & Rodrigues 2013). Distribution in Pará. Canaã dos Carajás (Barbosa & Rodrigues 2013).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E4CCFB15FD02.taxon	description	(Fig. 18 A – D)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E4CCFB15FD02.taxon	distribution	Distribution. Brazil: Pará (Barbosa et al. 2010 b, 2015; Rodrigues & Ferreira-Keppler 2013). Distribution in Pará. Oriximiná (Barbosa et al. 2010 b, 2015; Rodrigues & Ferreira-Keppler 2013).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E4CCFB15FD02.taxon	discussion	Comment. Part of the type series of M. oriximinaensis was later described as M. siolii.	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E623FF60FB44.taxon	description	(Fig. 19 A – C)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E623FF60FB44.taxon	distribution	Distribution. Brazil: Pará (Barbosa et al. 2010 b, 2015). Distribution in Pará. Oriximiná (Barbosa et al. 2010 b, 2015), Santarém (Nieser 1970 b, 1975; Barbosa et al. 2015).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E1E8FDA1F9A0.taxon	description	(Fig. 15 B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E1E8FDA1F9A0.taxon	distribution	Distribution. Brazil: Amazonas (Truxal 1949; Nieser 1970 b), Pará (present study). Ecuador. Panama. Peru (Truxal 1949). Distribution in Pará. Belterra (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9C1FA8E1E8FDA1F9A0.taxon	materials_examined	Material examined. Brazil, Pará, Município de Belterra, igarapé KM 115 BR 163, 03 ° 17 ’ 34 ” S / 54 ° 52 ’ 45 ” W, 23 / XI / 2019, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9B1FA8E38DFD07FEF8.taxon	description	(Fig. 25 A)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B662FF9B1FA8E38DFD07FEF8.taxon	distribution	Distribution. Argentina (Bachmann 1963). Brazil: Alagoas, Ceará (Jordão et al. 2025), Espírito Santo (Bachmann 1963), Goiás (Truxal 1957), Mato Grosso (Nieser 1970 b), Minas Gerais (Melo & Nieser 2004; Barbosa & Nessimian 2013 b), Pará (Barbosa & Nessimian 2013 b; Nobre et al. 2019), Pernambuco (Jordão et al. 2025), Piauí (Barbosa & Nessimian 2013 b; Takiya et al. 2016), Rio de Janeiro (Hungerford 1926, 1933; Ribeiro et al. 1998, 2010; Barbosa & Nessimian 2013 b), Rio Grande do Sul (Bachmann 1963; Barbosa & Nessimian 2013 b), Sergipe (Jordão et al. 2025), São Paulo (Barbosa & Nessimian 2013 b), Tocantins (Truxal 1957). Paraguay (Hungerford 1933). Distribution in Pará. Canaã dos Carajás (Barbosa & Nessimian 2013 b; Nobre et al. 2019), Curionópolis, Parauapebas (Barbosa & Nessimian 2013 b).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B665FF9B1FA8E475FE12FCB7.taxon	description	(Fig. 25 B)	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B665FF9B1FA8E475FE12FCB7.taxon	distribution	Distribution. Argentina (Angrisano 1982). Brazil: Amazonas (Nieser 1970 b; Pereira & Melo 2007; Barbosa & Nessimian 2013 b; Barbosa & Rodrigues 2013), Mato Grosso do Sul (Floriano et al. 2013), Minas Gerais (Nieser & Melo 1997; Melo & Nieser 2004; Barbosa & Nessimian 2013 b), Pará (Barbosa & Nessimian 2013 b; present study), Rio de Janeiro (Ribeiro et al. 2010), Rio Grande do Sul (SEMA-RS 2014). Ecuador (Sites 1990). Paraguay (Hungerford 1933). Distribution in Pará. Parauapebas (Barbosa & Nessimian 2013 b), Santarém (present study).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
314187C4B665FF9B1FA8E475FE12FCB7.taxon	materials_examined	Material examined. Brazil, Pará, Município de Santarém, Lago Maicá, 02 ° 28 ’ 01 ” S / 54 ° 39 ’ 51 ” W, 27 / V / 2021, S. E. Santos col. (1 ♂).	en	Santos, Suzane Evaristo Dos, Barbosa, Julianna Freires, Moreira, Felipe Ferraz Figueiredo, Couceiro, Sheyla Regina Marques (2025): Corixoidea and Notonectidae (Hemiptera: Heteroptera: Nepomorpha) of Pará, Brazil, with new records from the western portion of the state. Zootaxa 5627 (2): 275-304, DOI: 10.11646/zootaxa.5627.2.3, URL: https://doi.org/10.11646/zootaxa.5627.2.3
