ABSTRACT
In order to expand the knowledge on the composition of Ephemeroptera from large rivers, we present, herein, the first survey of mayflies from the São Mateus River Basin, Espírito Santo State. Adults were collected biannually in 2012 and 2013 with the aid of Pennsylvania light trap in eleven points distributed in the main river of the river basin, São Mateus River and its two main tributaries, Cotaxé River (Braço Norte) and Cricaré River (Braço Sul). Thirty-three species were identified (22 nominal and 11 morphospecies) in 24 genera and five families. One genus and one species are reported for the first time from Brazil, three species from Southeastern Region of Brazil, and two species from the state. Five species and one genus not previously described were also found. Moreover, around 20% of the known species of mayfly registered from the state were found. This work reinforces the need to give more attention to research on large rivers due to the high potential for diversity, not only for Ephemeroptera, but also for other aquatic insects.
Keywords
Adult stage; Aquatic insects; Diversity; Neotropical region; Main river
Introduction
The knowledge concerning mayflies (Ephemeroptera: Insecta) in Brazil has increased considerably in recent years. With the increase of taxonomic papers and published geographical distribution, the number of species reported from the country almost doubled in two decades (Da-Silva and Salles, 2012Da-Silva, E.R., Salles, F.F., 2012. Ephemeroptera Hyatt & Arms, 1891. In: Albertino, J.R., Mello, G.A.R., de Carvalho, C.J.B., Casari, S.A., Constantino, R. (Eds.), Insetos do Brasil: Diversidade e Taxonomia. Holos Editora, Ribeirão Preto, pp. 231–244.). Not long ago the state of Espírito Santo was considered understudied with respect to the order in the country. However, after the publication of the first survey of Ephemeroptera (Salles et al., 2010Salles, F.F., 2010. Taxonomy of the genus AdebrotusLugo-Ortiz & McCafferty (Ephemeroptera: Baetidae). Ann. Limonol. 46, 207-215.), and a series of taxonomic papers based on material from the state (Salles, 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.; De-Souza et al., 2011De-Souza, M.R., Salles, F.F., Nessimian, J.L., 2011. Three new species of Baetodes Needham & Murphy (Ephemeroptera: Baetidae) from Espírito Santo State. Brazil. Aquat. Insects 33, 93-104.; Massariol and Salles, 2011Massariol, F.C., Salles, F.F., 2011. Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil. Zootaxa 3058, 1-21.; Salles and Lima, 2011Salles, F.F., Lima, M.M., 2011. New species and new records of Miroculis Edmunds (Ephemeroptera: Leptophlebiidae) from Southeastern Brazil. Zootaxa 2740, 53-58.), this situation has drastically changed. The number of mayfly species reported from the state in 2006 was eight, and now more than 80 species have been recorded and/or described.
Nevertheless, as in most studies conducted in Brazil, the vast majority of these records were achieved based on material collected in streams. Medium to large rivers in Brazil, as a general rule, are neglected when it comes to the study of the aquatic insects community. This situation not only hampers any attempts to uncover the diversity of the aquatic biota, but also prevents directly applicable studies, such as biomonitoring for example.
Among the main rivers in the state of Espírito Santo, the São Mateus River is located in the north of the state and has a maximum width of approximately 310 meters (SEAMA/IEMA, 2015SEAMA/IEMA, 2015. Região Hidrográfica dos afluentes dos rios São Mateus, Braço Norte e Braço Sul no Espírito Santo, Available at: http://www.agerh.es.gov.br/default.asp (accessed 17.06.15).
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). The São Mateus River Basin is part of the Eastern Atlantic Hydrographic Region (MMA, 2003MMA – Ministério do Meio Ambiente, Conselho Nacional de Recursos Hídricos, 2003. Resolução nº 32, Brasília.) and is completely inserted into the Aquatic Ecoregion of the Atlantic Forest (MMA, 2006MMA – Ministério do Meio Ambiente, Secretaria de Recursos Hídricos, 2006. Plano Nacional de Recursos Hídricos. Panorama e estado dos recursos hídricos do Brasil, vol. 1. Ministério do Meio Ambiente/Secretaria de Recursos Hídricos, Brasília.). It is the main water supply to several towns and cities, and has been providing water to several irrigation projects, and has also been used as recipient of domestic and industrial effluents and these other places. The remaining forests that protect soil and water resources have been cut or burned over the entire basin (ANA, 2015ANA – Agência Nacional de Águas, 2015. Bacias hidrográficas do Atlântico Sul–trecho leste. Sinopse de informações do Rio de Janeiro, Espírito Santo, Bahia e Sergipe. Série: Sistema Nacional de Informações sobre Recursos Hídrico–CD nº 4, Available at: http://hidroweb.ana.gov.br/doc/BHASLeste/index.htm (accessed 17.06.15).
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).
Aiming to expand the knowledge on mayflies, as well as to increase the information about this group in the state of Espírito Santo, the aim of this work is to provide the first inventory of species of Ephemeroptera in the São Mateus River Basin.
Material and methods
Study area
The state of Espírito Santo is located in the Southeast Region of Brazil; it has about 46,000 km2 and consists of 78 municipalities and 12 River Basin (Feitoza et al., 2001Feitoza, L.R., Stocking, M., Rezende, N., 2001. Natural Resources Information Systems for Rural Development: Approaches for Espírito Santo State, Brazil. Incaper, Vitória.). The São Mateus River Basin (Fig. 1) has an area of approximately 13,482 km2, with 5806 km2 in the state of Minas Gerais, covering 12 municipalities and 7676 km2 in the state of Espírito Santo, which passes through 11 municipalities (SEAMA/IEMA, 2015SEAMA/IEMA, 2015. Região Hidrográfica dos afluentes dos rios São Mateus, Braço Norte e Braço Sul no Espírito Santo, Available at: http://www.agerh.es.gov.br/default.asp (accessed 17.06.15).
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).
The São Mateus River is formed by two main tributaries: the Cotaxé and Cricaré rivers, with 244 km and 188 km length, respectively. (SEAMA/IEMA, 2015SEAMA/IEMA, 2015. Região Hidrográfica dos afluentes dos rios São Mateus, Braço Norte e Braço Sul no Espírito Santo, Available at: http://www.agerh.es.gov.br/default.asp (accessed 17.06.15).
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). From the springheads in state of Minas Gerais to the towns of Nova Venécia and Boa Esperança, both these watercourses as its tributaries have many rapids and small waterfalls. The lower course of the São Mateus River consists mainly of flooded piemontes and a small strip of coastal plain, having soft and wavy relief, which in addition to easy access allows the use of motomechanization in many stretches. Probably, these are some reasons for indiscriminate process of deforestation in this area along the last fifty years. Today the entire region is almost devoid of native vegetation and features many erosional areas. Moreover, the river is also receptor of domestic and industrial effluents from several cities through which it passes (ANA, 2015ANA – Agência Nacional de Águas, 2015. Bacias hidrográficas do Atlântico Sul–trecho leste. Sinopse de informações do Rio de Janeiro, Espírito Santo, Bahia e Sergipe. Série: Sistema Nacional de Informações sobre Recursos Hídrico–CD nº 4, Available at: http://hidroweb.ana.gov.br/doc/BHASLeste/index.htm (accessed 17.06.15).
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).
Collection, identification and deposition
Samples were collected at the main river of São Mateus River Basin, in 11 sites distributed as follows: three in the Cricaré River, three in the Cotaxé River, four in the São Mateus River and one in the Mariricu River (Fig. 1). Samples were collected in four campaigns, between 2012 and 2013. Figs. 2–5 correspond to images of some of the collection points. In Table 1 these points are presented with their respective geographic coordinates. Samples were gathered through a Pennsylvania light trap (Frost, 1957Frost, S.W., 1957. The Pennsylvania insect light trap. J. Econ. Entomol. 50, 287-292.), equipped with a 12 Volts inspection lamp and a plastic container completely filled with alcohol 92.6%. The traps were placed in trees along the riverbank, and the lamp was lit no later than five o’clock, staying on until dawn of the next day.
Some of collection points. 2. Cotaxé River, Patrimônio do Bis. 3. Cricaré River, Fazenda Liberdade. 4. São Mateus River, Sítio Santa Maria. 5. São Mateus River, Guriri.
For the identification of the material, a series of books, theses and papers have been consulted, among them: Molineri (1999)Molineri, C., 1999. Revision of the Genus Tricorythopsis (Ephemeroptera: Leptohyphidae) with the description of four new species. Aquat. Insects 21(4), 285-300., Domínguez et al. (2006)Domínguez, E., Molineri, C., Pescador, M., Hubbard, M.D., Nieto, C., 2006. Ephemeroptera of South America. In: Adis, J., Arias, J.R., Rueda-Delgado, G., Wantzen, K.M. (Eds.), Aquatic Biodiversity in Latin America (ABLA). Sofia-Moscow, Pensoft, Bulgaria., Salles (2006)Salles, F.F., (Tese de doutorado) 2006. A Ordem Ephemeroptera no Brazil (Insecta): Taxonomia e Diversidade. Universidade Federal de Viçosa, Viçosa., Molineri (2010)Moreira, F.F.F., Nessimian, J.L., Rúdio, J.A., Salles, F.F., 2010. New species and new records of Veliidae from Espírito Santo State and adjacent Minas Gerais State, Brazil, with notes on nomenclature (Insecta: Heteroptera: Gerromorpha). J. Nat. Hist. 44, 45-46., Gonçalves et al. (2011)Gonçalves, I., Da-Silva, E.R., Nessimian, J.L., 2011. First record and new species of Tortopsis Molineri, 2010 (Ephemeroptera, Polymitarcyidae) from Brazil. Zootaxa 2866, 50-54., Nascimento et al. (2011)Nascimento, J.M.C., Barcelos-Silva, P., Salles, F.F., 2011. Two winged Leptophlebiidae (Ephemeroptera) from Brazil: new species, records and stage description. Aquat. Insects 33, 191-201., Lima et al. (2012)Lima, L.R.C., Nascimento, J.M.C., Mariano, R., Pinheiro, U.S., Salles, F.F., 2012. New species and new records of Hermanella complex (Ephemeroptera: Leptophlebiidae) from Eastern Brazilian. Ann. Limnol. 48, 201-213., Cruz et al. (2014)Cruz, P.V., Salles, F.F., Hamada, N., 2014. Callibaetis Eaton (Ephemeroptera: Baetidae) from Brazil. J. Nat. Hist. 48, 561-570.. The specimens are deposited at Coleção Zoológica Norte Capixaba (CZNC) of Universidade Federal do Espírito Santo, stored at around −20 °C in 80% ethanol.
Material examined and geographical distribution
The geographical distribution presented for the taxa was extracted from Domínguez et al. (2006)Domínguez, E., Molineri, C., Pescador, M., Hubbard, M.D., Nieto, C., 2006. Ephemeroptera of South America. In: Adis, J., Arias, J.R., Rueda-Delgado, G., Wantzen, K.M. (Eds.), Aquatic Biodiversity in Latin America (ABLA). Sofia-Moscow, Pensoft, Bulgaria. and Salles et al. (2015)Salles, F.F., Boldrini, R., Nascimento, J.M.C., Angeli, K.B., Massariol, F.C., Raimundi, E., 2015. Ephemeroptera do Brasil: Lista das espécies, Available at: http://www.ephemeroptera.com.br/lista (accessed 17.06.15).
http://www.ephemeroptera.com.br/lista...
. The examined material is organized so that PT refers to the collection point (Table 1), in brackets is the number of individuals, and then the date of collection. New records of the species are marked with an asterisk (*).
Results
Altogether 33 species are listed, with 23 nominal and 10 morphospecies, 24 genera and five families. Figures 6–9 represent some of the collected species. The species and morphospecies found in the São Mateus River Basin are listed below.
Adults of Ephemeroptera. 6. Ulmeritoides sp. 7. Traverella insolita. 8. Aturbina beatrixae. 9. Hydrosmilodon plagatus.
For each species, their geographical distribution is presented as well as the points at which it was collected (more information about the collection points are presented in Table 1). Comments are addressed when pertinent.
Baetidae
Americabaetis alphus Lugo-Ortiz and McCafferty, 1996
Geographical distribution: Argentina, Bolívia, Chile, Paraguai and Brazil: Alagoas, Amazonas, Bahia, Ceará, Espírito Santo (Alto Caparaó, Ibitirama, Santa Teresa, São Mateus* and Nova Venécia*), Goiás, Mato Grosso, Minas Gerais, Paraná, Pernambuco, Piauí, Rio de Janeiro, Rio Grande do Sul, Roraima, Santa Catarina, São Paulo and Sergipe.
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but for the first time in the municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (1) 16–17/iv/2012; PT01: (1) 20–21/xi/2012; PT02: (1) 23–24/v/2012; PT02: (1) 22–23/xi/2012; PT03: (1) 26–27/vii/2012; PT03: (1) 20–21/xi/2012; PT04: (1) 21–22/XI/2012; PT05: (1) 21–22/xi/2012.
Aturbina beatrixae Gillies, 2001
Geographical distribution: Argentina, Uruguai and Brazil: Bahia, Espírito Santo (Município Alto Caparaó, São Mateus), Mato Grosso, Minas Gerais, Paraná, Pernambuco, Santa Catarina, São Paulo.
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but for the first time in the municipality of Nova Venécia.
Material examined: PT03: (2) 20–21/xi/2012; PT04: (10) 21–22/xi/2012.
Callibaetis guttatus Navás, 1915
Geographical distribution: Argentina and Brazil: Ceará, Pernambuco, Rio de Janeiro e Espírito Santo (São Mateus e Nova Venécia*).
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but for the first time in the municipality of Nova Venécia.
Material examined: PT01: (1) 16–17/iv/2012; PT05: (1) 23–24/v/2012.
Camelobaetidius sp.
Occurrence in the studied area: Espírito Santo, municipality of São Mateus.
Comments: Identification at species level was not possible, because only one adult was analyzed and the association with nymphs is essential for the recognition of the species.
Material examined: PT02: (1) 23–24/v/2012.
Paracloeodes cf. waimiri
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia.
Comments: Probably it is Paracloeodes waimiri Nieto and Salles based on abdominal color pattern; however it is necessary association with nymphs for confirmation, since only adult individuals were analyzed.
Material examined: PT01: (3) 16–17/iv/2012; PT04: (2) 18–19/iv/2012.
Paracloeodes sp. 1
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia.
Comments: Identification at species level was not possible, because only one adult was analyzed, and the association with nymphs is essential for recognition of the species.
Material examined: PT01: (4) 20–21/xi/2012; PT02: (1) 22–23/xi/2012; PT03: (4) 20–21/xi/2012; PT04: (1) 18–19/iv/2012; PT04: (215) 21–22/xi/2012; PT05: (155) 21–22/xi/2012.
Caenidae
Caenis sp. nov.
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia and São Mateus.
Comments: This species is being described by Lima et al. (Pers. Comm., 2015).
Material examined: PT04: (1) 18–19/iv/2012; PT04: (1) 21–22/xi/2012; PT04: (1) 18–19/ii/2013; PT05: (1) 23–24/v/2012; PT05: (4) 26–27/vii/2012; PT07: (1) 07–08/ix/2012.
Alloretochus sigillatus Molineri, 2014
Geographical distribution: Bolivia, Equator and Brazil*: Espírito Santo (Nova Venécia).
Comments: First record of the genus and species from Brazil.
Material examined: PT01: (2) 16–17/iv/2012; PT01: (4) 20–21/xi/2012; PT02: (6) 22–23/xi/2012; PT03: (112) 20–21/xi/2012; PT03: (80) 05–6/ii/2013; PT04: (19) 18–19/iv/2012; PT04: (22) 21–22/xi/2012; PT04: (2) 18–19/ii/2013; PT06: (3) 22–23/xi/2012; PT06: (1) 07–08/ii/2013.
Leptohyphidae
Gen. nov. sp. nov.
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia.
Comments: This is a new genus apparently related to Trichorythodes. A species belonging to the same genus has also been found in Serra do Aracá, Amazonas State.
Material examined: PT04: (1) 25–26/vii/2012.
Macunahyphes australis (Banks, 1913)
Geographical distribution: Argentina, Guiana and Brazil: Mato Grosso, Pará, Paraná, Roraima and Espírito Santo* (São Mateus and Nova Venécia).
Comments: First record for Southeast Region.
Material examined: PT01: (2) 16–17/iv/2012; PT02: (9) 23–24/v/2012; PT02: (2) 07–08/ix/2012; PT04: (2) 18–19/iv/2012; PT05: (2) 23–24/v/2012; PT07: (1) 07–08/ix/2012; PT09: (1) 19–20/iv/2012.
Traverhyphes (Mocoihyphes) yuati Molineri, 2004
Geographical distribution: Argentina and Brazil: Rio de Janeiro, São Paulo, Maranhão, Piauí, Goiás and Espírito Santo (São Mateus* and Nova Venécia*).
Comments: Previously registered for state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but for the first time in municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (444) 16–17/iv/2012; PT01: (11) 25–26/vii/2012; PT02: (70) 23–24/v/2012; PT01: (57) 21–22/xi/2012; PT01 (224) 05–06/ii/2013; PT02: (14) 07–08/ix/2012; PT03: (331) 16–17/iv/2012; PT03: (212) 26–27/vii/2012; PT03: (1308) 20–21/xi/2012; PT03: (2392) 05–06/ii/2013; PT04: (1449) 18–19/iv/2012; PT04: (787) 25–26/vii/2012; PT04: (2276) 21–22/xi/2012; PT04: (213) 18–19/ii/2013; PT04: (484) 15–16/iv/2013; PT05: (110) 21–22/xi/2012; PT05: (15) 23–24/v/2012; PT05: (1) 26–27/vii/2012; PT06: (945) 22–23/v/2012; PT06: (102) 08–09/ix/2012; PT06: (114) 22–23–06/xi/2012; PT06: (682) 05–06/ii/2013; PT06: (315) 07–08/ii/2013; PT07: (826) 07–08/ix/2012; PT07: (250) 13–14/vi/2012; PT07: (1984) 05–06/ii/2013; PT08: (4) 22–23/v/2012.
Traverhyphes (Traverhyphes) pirai Molineri, 2001
Geographical distribution: Brazil: Rio de Janeiro, Pernambuco and Espírito Santo* (São Mateus and Nova Venécia).
Comments: First record of state of Espírito Santo.
Material examined: PT01: (1) 16–17/iv/2012; PT01: (31) 20–21/xi/2012; PT02: (170) 06–07/ii/2013; PT03: (2) 20–21/xi/2012PT04: (143) 18–19/iv/2012; PT04: (17) 25–26/vii/2012; PT04: (31) 21–22/xi/2012; PT04: (11) 18–19/ii/2013; PT05: (3)23–24/v/2012; PT05: (5) 21–22/xi/2012; PT06: (1) 08–09/ix/2012; PT06: (1) 07–08/ii/2013; PT07: (1) 13–14/vi/2012; PT07: (2) 05–06/ii/2013.
Tricorythodes mirca Molineri, 2002
Geographical distribution: Bolivia and Brazil: Maranhão, Piauí, Pernambuco and Espírito Santo (São Mateus, Sooretama and Nova Venécia*).
Comments: Previously registered for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but first recorded for the municipality of Nova Venécia.
Material examined: PT01: (11) 16–17/iv/2012; PT01: (13) 25–26/vii/2012; PT01: (6) 20–21/xi/2012; PT03: (1) 06–07/ii/2013; PT03: (7) 20–21/xi/2012; PT03: (3) 05–06/ii/2013; PT04: (2) 18–19/iv/2012; PT04: (1) 25–26/vii/2012; PT04: (17) 21–22/xi/2012; PT05: (5) 23–24/v/2012; PT05: (1) 26–27/vii/2012; PT05: (10) 21–22/xi/2012; PT05: (4) 18–19/ii/2013; PT06: (1) 22–23/v/2012; PT06: (1) 08–09/ix/2012; PT06: (26) 22–23/xi/2012; PT07: (5) 07–08/ix/2012; PT08: (1) 10–11/v/2012; PT09: (5) 19–20/iv/2012; PT10: (1) 04–05/ii/2013.
Tricorythodes santarita Traver, 1959
Geographical distribution: Brazil: Rio de Janeiro e Espírito Santo*, municipalities of Nova Venécia and São Mateus.
Comments: First record for the state of Espírito Santo.
Material examined: PT01: (2) 16–17/iv/2012; PT02: (4) 23–24/v/2012; PT03: (1) 26–27/vii/2012; PT04: (5) 18–19/iv/2012; PT 04: (2) 25–26/vii/2012; PT05: (17) 23–24/v/2012; PT06: (1) 08–09/ix/2012; PT06: (1) 07–08/ii/2013; PT07: (2) 13–14/vi/2012; PT07: (3) 07–08/ix/2012.
Tricorythopsis artigas Traver, 1958
Geographical distribution: Argentina, Uruguai and Brazil: Rio Grande do Sul, Rio de Janeiro and Espírito Santo (Alfredo Chaves, Santa Teresa, São Mateus* and Nova Venécia*).
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but first registered in municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (2) 25–26/vii/2012; PT01: (159) 25–26/vii/2012; PT02: (4) 23–24/v/2012; PT02: (2) 06–07/ii/2013; PT04: (19) 25–26/vii/2012.
Tricorythopsis minimus (Allen, 1973)
Geographical distribution: Argentina, Uruguai, Brazil: Rio Grande do Sul and Espírito Santo (Sooretama, São Mateus* and Nova Venécia*).
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but first registered in municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (4) 16–17/v/2012; PT01: (809) 25–26/vii/2012; PT02: (43) 23–24/v/2012; PT03: (1) 20–21/xi/2012; PT03: (2) 05–06/ii/2013; PT04: (14) 25–26/vii/2012; PT05: (54) 23–24/v/2012; PT05: (1) 26–27/vii/2012; PT05: (4) 21–22/xi/2012; PT07: (1) 07–08/ix/2012; PT07: (16) 05–06/ii/2013.
Tricorythopsis yacutinga Molineri, 2001
Geographical distribution: Argentina and Brazil: Rio Grande do Sul and Espírito Santo* (São Mateus and Nova Venécia).
Comments: First recorded for the Southeast Region.
Material examined: PT01: (2) 16–17/iv/2012; PT01: (102) 25–26/vii/2012; PT02: (50) 23–24/v/2012; PT03: (1) 26–27/vii/2012; PT03: (1) 20–21/xi/2012; PT04: (4) 18–19/iv/2012; PT04: (77) 25–26/vii/2012; PT04: (2) 21–22/xi/2012; PT05: (2) 23–24/v/2012; PT05: (1) 21–22/xi/2012; PT07: (1) 13–14/vi/2012.
Leptophlebiidae
Farrodes carioca Domínguez, Molineri and Peters, 1996
Geographical distribution: Brazil: Rio de Janeiro and Espírito Santo (Ibitirama, Santa Teresa, Sooretama, São Mateus* and Nova Venécia*).
Comments: Previously recorded for the state of Espírito Santo (Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.), but first registered in municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (3) 20–21/xi/2012; PT01: (1) 05–06/ii/2013; PT02: (2) 07–08/ix/2012; PT03: (1) 26–27/vii/2012; PT04: (23) 18–19/iv/2012; PT04: (102) 25–26/vii/2012; PT04: (2) 18–19/ii/2013; PT06: (1) 08–09/2012; PT07: (1) 07–08/ix/2012.
Hylister obliquus Nascimento and Salles, 2013
Geographical distribution: Brazil: Espírito Santo (Pinheiros, São Mateus* and Nova Venécia*).
Comments: Species recently described and recorded for the state of Espírito Santo (Nascimento and Salles, 2013Nascimento, J.M.C., Salles, F.F., 2013. New species of Hermanella complex (Ephemeroptera: Leptophlebiidae) from Brazilian Atlantic forest. Zootaxa 3718, 1-27.), but for the first time in municipalities of São Mateus and Nova Venécia.
Material examined: PT01: (2) 16–17/iv/2012; PT01: (2) 25–26/vii/2012; PT01: (53) 20–21/xi/2012; PT01: (2) 05–06/ii/2013; PT02: (2) 07–08/ix/2012; PT04: (6) 18–19/iv/2012; PT04: (6) 25–26/vii/2012; PT04: (8) 20–21/xi/2012; PT04: (5) 15–16/iv/2013.
Hermanella nigra Nascimento and Salles, 2013
Geographical distribution: Brazil: Espírito Santo (Nova Venécia, Rio Bananal, São Mateus).
Comments: Species recently described and recorded for the state of Espírito Santo (Nascimento and Salles, 2013Nascimento, J.M.C., Salles, F.F., 2013. New species of Hermanella complex (Ephemeroptera: Leptophlebiidae) from Brazilian Atlantic forest. Zootaxa 3718, 1-27.).
Material examined: P1: (3) 20–21/xi/2012.
Hydrosmilodon plagatus Lima, Nascimento and Salles, 2012
Geographical distribution: Brazil: Pernambuco and Espírito Santo (Sooretama and Nova Venécia*).
Comments: Previously recorded for the state of Espírito Santo (Lima et al., 2012Lima, L.R.C., Nascimento, J.M.C., Mariano, R., Pinheiro, U.S., Salles, F.F., 2012. New species and new records of Hermanella complex (Ephemeroptera: Leptophlebiidae) from Eastern Brazilian. Ann. Limnol. 48, 201-213.), but for the first time in the municipality of Nova Venécia.
Material examined: PT04: (21) 18–19/iv/2012; PT04: (7) 25–26/vii/2012; PT04: (53) 21–22/xi/2012; PT04: (3) 15–16/iv/2013; PT04: (8) 18–19/ii/2013.
Simothraulopsis sp. nov. 1
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia and São Mateus.
Comments: This species is being described by Nascimento et al. (Pers. Comm., 2015).
Material examined: PT01: (13) 16–17/iv/2012; PT01: (1) 25–26/vii/2012; PT03: (1) 16–17/iv/2012; PT03: (1) 26–27/vii/2012; PT04: (69) 18–19/iv/2012; PT04: (17) 25–26/vii/2012.
Simothraulopsis sp. nov. 2
Occurrence in the studied area: Espírito Santo, municipality of Nova Venécia.
Comments: This species is being described by Nascimento et al. (Pers. Comm., 2015).
Material examined: PT01: (5) 16–17/iv/2012; PT01: (1) 25–26/vii/2012; PT04: (34) 18–19/iv/2012; PT04: (5) 25–26/vii/2012.
Thraulodes sp.
Occurrence in the studied area: Brazil: Espírito Santo (São Mateus*).
Comments: Identification at species level was not possible, because the single specimen was collected at the subimago stage. First record of the genus for the municipality of São Mateus.
Material examined: PT03: (1) 05–06/ii/2013; PT06: (1) 22–23/v/2012; PT06: (1) 08–09/ix/2012.
Terpides sooretamae Boldrini and Salles, 2009
Geographical distribution: Brazil: Mato Grosso, Pernambuco and Espírito Santo (Alfredo Chaves, Barra Seca, Sooretama, Nova Venécia* and São Mateus*).
Comments: Previously recorded for the state of Espírito Santo (Boldrini and Salles, 2009), but for the first time in the municipalities of Nova Venécia and São Mateus.
Material examined: PT02: (2) 22–23/xi/2012; PT04: (7) 21–22/xi/2012.
Tikuna bilineata (Needham and Murphy, 1924)
Geographical distribution: Colombia, Equador, Peru, Suriname, Venezuela and Brazil: Mato Grosso, Pará and Espírito Santo* (Nova Venécia).
Comments: First record for the Southeastern Region.
Material examined: PT01: (1) 16–17/v/2012; PT04: (1) 18–19/iv/2012.
Traverella insolita Nascimento and Salles, 2013
Geographical distribution: Brazil: Espírito Santo (Pedro Canário, Sooretama, Nova Venécia*).
Comments: First record for the municipality of Nova Venécia.
Material examined: PT01: (3) 16–17/iv/2012; PT01: (1) 25–26/vii/2012; PT01: (2) 05–06/ii/2013; PT03: (12) 16–17/iv/2012; PT03: (8) 05–06/ii/2013; PT04: (1) 18–19/ii/2013; PT04: (5) 15–16/iv/2013; PT07: (1) 13–14/vi/2012; PT07: (1) 07–08/ix/2012.
Ulmeritoides sp. 1
Occurrence in the studied areas: Espírito Santo, municipality of Nova Venécia and São Mateus.
Comments: Identification at species level was not possible, because individuals were collected only at subimago stage.
Material examined: PT01: (1) 16–17/iv/2012; PT01: (1) 05–06/ii/2013; PT02: (2) 23–24/v/2012; PT02: (1) 07–08/ix/2012; PT02: (1) 06–07/ii/2013; PT03: (2) 16–17/iv/2012; PT03: (59) 20–21/xi/2012; PT03: (2) 05–06/ii/2013; PT04: (1) 18–19/iv/2012; PT04: (2) 18–19/ii/2013; PT05: (3) 18–19/ii/2013; PT06: (1) 21–22/xi/2012; PT07: (2) 13–14/vi/2012; PT07: (11) 07–08/ix/2012; PT07: (3) 05–06/ii/2013.
Polymitarcyidae
Asthenopodes chumuco Molineri, Salles and Peters, 2015
Geographical distribution: Colombia, Guyana and Brazil: Amazonas and Espírito Santo (São Mateus).
Comments: Previously recorded for the state of Espírito Santo (Molineri et al., 2015Molineri, C., Salles, F.F., Peters, J., 2015. Phylogeny and biogeography of Asthenopodinae with a revision of Asthenopus, reinstatement of Asthenopodes, and description of the new genera Hubbardipes and Priasthenopus(Ephemeroptera, Polymitarcyidae). Zookeys 478, 45-128.).
Material examined: PT02: (2) 23–24/v/2012; PT02: (1) 07–08/ix/2012; PT03: (2) 05–06/ii/2013; PT07: (4) 07–08/ix/2012.
Campsurus truncatus Ulmer, 1920
Geographical distribution: Bolívia and Brazil: Espírito Santo (Santa Teresa, Nova Venécia* and São Mateus*).
Comments: Registered in Brazil, only in the state of Espírito Santo. First record for the municipalities of São Mateus and Nova Venécia.
Material examined: PT04: (1) 18–19/iv/2012; PT04: (1) 21–22/xi/2012; PT06: (1) 08–09/ix/2012; PT07: (4) 13–14/vi/2012; PT07: (3) 07–08/ix/2012; PT10: (1) 20–21/xi/2012.
Campsurus sp. nov.
Occurrence in the studied area: Espírito Santo, municipalities of Nova Venécia and São Mateus.
Comments: This new species is apparently related to Campsurus segnis Needham and Murphy, 1924.
Material examined: PT01: (91) 16–17/iv/2012; PT01: (89) 25–26/vii/2012; PT01: (2) 05–06/ii/2013; PT02: (10) 23–24/v/2012; PT02: (16) 06–07/ii/2013; PT03: (16) 16–17/iv/2012; PT03: (9) 26–27/vii/2012; PT03: (43) 05–06/ii/2013; PT04: (139) 18–19/iv/2012; PT05: (1) 18–19/ii/2013; PT06: (16) 22–23/v/2012; PT06: (34) 08–09/ix/2012; PT07: (26) 13–14/vi/2012; PT07: (27) 07–08/ix/2012; PT07: (66) 05–06/ii/2013.
Tortopsis canum Gonçalves, Da-Silva and Nessimian, 2011
Geographical distribution: Brazil: Rio de Janeiro and Espírito Santo.
Comments: Previously recorded for the state of Espírito Santo (Molineri et al., 2012Molineri, C., Salles, F.F., Boldrini, R., 2012. Tortopus Needham & Murphy and Tortopsis Molineri (Ephemeroptera: Polymitarcyidae) new species and new records from Brazil and Ecuador. Rev. Brasil. Entomol. 56, 463-467.).
Material examined: PT01: (1) 16–17/iv/2012; PT01: (1) 05–06/ii/2013; PT03: (1) 16–17/iv/2012; PT03: (1) 26–27/vii/2012; PT03: (3) 05–06/ii/2013; PT06: (1) 22–23/v/2012; PT06: (3) 08–09/ix/2012; PT06: (4) 07–08/ii/2013; PT07: (5) 13–14/vi/2012; PT07: (1) 07–08/ix/2012; PT07: (30) 05–06/ii/2013.
Tortopus harrisi Traver, 1950
Geographical distribution: Paraguai and Brazil: Mato Grosso, Mato Grosso do Sul and Espírito Santo (São Mateus and Nova Venécia).
Comments: Previously recorded for the state of Espírito Santo (Molineri et al., 2012Molineri, C., Salles, F.F., Boldrini, R., 2012. Tortopus Needham & Murphy and Tortopsis Molineri (Ephemeroptera: Polymitarcyidae) new species and new records from Brazil and Ecuador. Rev. Brasil. Entomol. 56, 463-467.).
Material examined: PT01: (14) 16–17/iv/2012; PT01: (6) 05–06/ii/2013; PT02: (8) 05–06/ii/2013; PT02: (269) 06–07/ii/2013; PT03: (1) 16–17/iv/2012; PT03: (300) 05–06/ii/2013; PT04: (4) 18–19/ii/2013; PT06: (16) 22–23/v/2012; PT06: (1) 08–09/ix/2012; PT06: (140) 07–08/ii/2013; PT07: (7) 13–14/vi/2012; PT07: (13) 07–08/ix/2012; PT07: (283) 05–06/ii/2013.
Discussion
The present study gives the first record of Alloretochus sigillatusMolineri, 2014 for Brazil. The genus and species were previously recorded only from Bolivia and Ecuador. Three species are registered for the first time from the Southeastern region [Macunahyphes australis (Banks, 1913), Tricorythopsis yacutinga Molineri, 2001 and Tikuna bilineata (Needham and Murphy, 1924)]. Five species (M. australis, Traverhyphes (Traverhyphes) pirai, Molineri 2001, Ti. yacutinga, Tricorythodes santarita Traver, 1959, Tk. bilineata) and one genus (Tikuna Savage, Flowers and Porras, 2005) are reported for the first time from the state of Espírito Santo. Furthermore, some species previously registered for state of Espírito Santo had their distribution slightly expanded: Americabaetis alphusLugo-Ortiz and McCafferty, 1996, Traverhyphes (Mocoihyphes) yuatiMolineri, 2004, Tricorythopsis minimus (Allen, 1973), Tricorythopsis artigas Traver, 1958, Farrodes carioca Domínguez, Molineri and Peters, 1996, Hylister obliquus Nascimento and Salles, 2013 were recorded for São Mateus and Nova Venécia, Callibaetis guttatus Navás 1915 and Hydrosmilodon plagatus Lima, Nascimento and Salles, 2012 for Nova Venécia.
Three undescribed species were found, one of Caenis Stephens, 1835 (Caenidae) and two of Simothraulopsis Demoulin, 1966 (Leptophlebiidae), besides one undescribed genus and species of the family Leptohyphidae. Taking into account the species previously reported for the state, around 20% were found during this project.
Two morphospecies of Leptophlebiidae (Thraulodes sp. and Ulmeritoides sp.) and three of Baetidae (Camelobaetidius sp., Paracloeodes cf. waimiri and Paracloeodes sp.) could not be identified, because their diagnostic characters cannot be seen based on the specimens collected (Leptophlebiidae) or because the association with nymphs is essential for the recognition of the species (Baetidae).
With respect to the families, Leptophlebiidae was the most representative with 11 species (33.3%), followed by Leptohyphidae with nine species (27.2%), and Baetidae with six species (18.2%). The lowest number of species was recorded for Polymitarcyidae and Caenidae with five (15.1%) and two (6.1%) species, respectively. Generally, in studies developed in South America (or Brazil), Baetidae is the most representative family, closely followed by Leptophlebiidae and then Leptohyphidae (Salles et al., 2004Salles, F.F., Da-Silva, E.R., Hubbard, M.D., Serrão, J.E., 2004. As espécies de Ephemeroptera (Insecta) registradas para o Brasil. Biota Neotrop. 4, 1-34., 2010a; Francischetti, 2007; Shimano et al., 2011; Lima et al., 2012). However, the composition of the mayfly fauna was distinct from those found in studies performed in Southeastern Region and state of Espírito Santo (e.g. Boldrini et al., 2009Boldrini, R., Salles, F.F., Cabette, H.R.S., 2009. Contribution to the taxonomy of the Terpides lineage (Ephemeroptera: Leptophlebiidae). Ann. Limnol. 45, 219-229.; Salles and Nascimento, 2009Salles, F.F., Nascimento, J.M.C., 2009. The Genus Rivudiva Lugo-Ortiz and McCafferty (Ephemeroptera: Baetidae): first generic descriptions of adults, new combinations, and notes on the nymphs. Ann. Limnol. 45, 231-235.; Moreira et al., 2010Moreira, F.F.F., Nessimian, J.L., Rúdio, J.A., Salles, F.F., 2010. New species and new records of Veliidae from Espírito Santo State and adjacent Minas Gerais State, Brazil, with notes on nomenclature (Insecta: Heteroptera: Gerromorpha). J. Nat. Hist. 44, 45-46.; Salles et al., 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.; Salles, 2010Salles, F.F., Nascimento, J., Massariol, F., Angeli, K., Barcelos-Silva, P., Rúdio, J., Boldrini, R., 2010. First survey of mayflies (Ephemeroptera, Insecta) from Espírito Santo State, Southeastern Brazil. Biota Neotrop. 10, 293-307.; Lima et al., 2012Lima, L.R.C., Nascimento, J.M.C., Mariano, R., Pinheiro, U.S., Salles, F.F., 2012. New species and new records of Hermanella complex (Ephemeroptera: Leptophlebiidae) from Eastern Brazilian. Ann. Limnol. 48, 201-213.; Barcelos-Silva et al., 2012Barcelos-Silva, P., Pes, A.M.O., Salles, F.F., 2012. Annulipalpia (Insecta: Trichoptera) from state of Espírito Santo, Brazil. Check List 8, 1274-1279.). The difference of proportion of families and composition of species can be attributed to two uncommon approaches. First, we captured adults instead of nymphs. This fact favored not only the finding of families where nymphs have cryptic habitats, such as Polymitarcyidae and Caenidae, but also the identification at the species level of most of the families except for Baetidae (the only group among mayflies in which taxonomy is based almost exclusively on nymphal stage). The second approach, certainly, is due to the size and characteristics of the water body. Rivers, given the amount of fine sediment and the existence of semi-lentic areas, are much more suitable for Caenidae and Polymitarcyidae (Domínguez et al., 2006Domínguez, E., Molineri, C., Pescador, M., Hubbard, M.D., Nieto, C., 2006. Ephemeroptera of South America. In: Adis, J., Arias, J.R., Rueda-Delgado, G., Wantzen, K.M. (Eds.), Aquatic Biodiversity in Latin America (ABLA). Sofia-Moscow, Pensoft, Bulgaria., 2009Domínguez, E., Molineri, C., Nieto, C., 2009. Ephemeroptera. In: Domínguez, E., Fernández, H.R. (Eds.), Macroinvertebrados bentónicos sudamericanos. Sistemática y biología. Fundacíon Miguel Lillo, Tucumán.; Da-Silva and Salles, 2012Da-Silva, E.R., Salles, F.F., 2012. Ephemeroptera Hyatt & Arms, 1891. In: Albertino, J.R., Mello, G.A.R., de Carvalho, C.J.B., Casari, S.A., Constantino, R. (Eds.), Insetos do Brasil: Diversidade e Taxonomia. Holos Editora, Ribeirão Preto, pp. 231–244.). The high diversity of species and the amount of new records and taxa undescribed demonstrate the relevance of large rivers in researches on aquatic insects fauna.
Acknowledgments
We thank the collaboration of Erikcsen Raimundi and Maisa Carvalho for their help during the course of this work and Fabiana Massariol by her support and suggestions. The Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for financial support to the project “Caracterização ambiental da bacia do rio São Mateus frente a aspectos naturais e antrópicos: escala espacial e temporal” (Process number PELD 558246/2009-5) and for a productivity grant to FFS, and to FAPES (Fundação de Amparo a Pesquisa do Espírito Santo) process #54689627/2011 for financial support to the project “Diversidade e Taxonomia de Ephemeroptera (Insecta) do Espírito Santo”; the Universidade Federal do Espírito Santo (UFES) for grants awarded during the work. The Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) and Instituto Brasileiro do Meio Ambiente e Recursos Naturais Renováveis (IBAMA) (Process number 12777-1) for the permissions of collections to the realization of this work and all people who allowed our entry into their properties for conducting this study.
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Publication Dates
-
Publication in this collection
Jul-Sep 2015
History
-
Received
12 Feb 2015 -
Accepted
12 May 2015