A new species in Simulium (Trichodagmia) (Diptera: Simuliidae) from Chapada Diamantina region, Brazil: cryptic diversity revealed by morphological and molecular evidence

Nascimento, Jeane Marcelle Cavalcante do; Hamada, Neusa; Pepinelli, Mateus

doi:10.1016/j.actatropica.2020.105457

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…(1%-2%) are within the intraspecific distance thresholds already reported in studies of other Simuliidae species (e.g., Hamada et al, 2010;Hernández-Triana et al, 2012;Nascimento et al, 2016Nascimento et al, , 2020Nascimento et al, , 2021Pramual & Nanork, 2012;Rivera & Currie, 2009). The larger amplitude of intraspecific distance observed in S. oyapockense s.l.…”

Section: Discussionsupporting

confidence: 84%

“…The genetic‐distance values between Simulium ‘S’ and S. oyapockense s.s . (2.9%–3.1%) (Table 2) are considered to be intraspecific distances in many Simuliidae species (e.g., Hernández‐Triana et al, 2012; Nascimento et al, 2020; Rivera & Currie, 2009), however the morphological differences previously reported and the high posterior probability value of the clade referring to this species in the topology retrieved from the Bayesian inference support this population as a monophyletic group distinct from S. oyapockense s.s . (Table 2).…”

Section: Discussionmentioning

confidence: 99%

“…Simuliidae has medical and veterinary importance because most species have females with hematophagous habits. This family is known for harbouring many cryptic species that are normally discovered by analysis of polytene chromosomes (e.g., Adler et al, 2010;Nascimento et al, 2018;Post et al, 2007) and by molecular analysis (e.g., Hamada et al, 2010;Nascimento et al, 2020Nascimento et al, , 2021. Distinguishing these species in epidemiological studies and vector-control programmes is important because different species in a complex may exhibit differences in biology, ecology, vector competence, and response to control measures.…”

Section: Introductionmentioning

confidence: 99%

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Molecular circumscription of the blackfly Simulium oyapockense from South America

Hamada

Andrade-Souza²,

Paul

et al. 2022

Medical Vet Entomology

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Problems related to the identity of Simuliidae species are impediments to effective disease control in Amazonia. Some of these species, such as Simulium oyapockense Floch & Abonnenc, 1946 (Diptera: Simuliidae), are vectors of the organisms that cause onchocerciasis and mansonellosis diseases. This blackfly species has a wide distribution in South America, and it is suspected of being a complex of cryptic species. The aim of this study is to characterize the nominal species S. oyapockense using partial COI gene sequences. Seven populations of S. oyapockense (morphologically identified) were analysed, including one from its type-locality. The other six populations were collected in Brazil and in Argentina. A taxon collected in Amazonas state, Brazil, with adults similar to S. oyapockense but with distinct pupae, was also included in the analysis (Simulium 'S').The nominal species S. oyapockense is circumscribed, and its geographical distribution is restricted to areas north of the Amazon River. Populations of S. oyapockense s.l. collected south of the Amazon River comprise a species complex that needs to be evaluated using integrative taxonomy. Simulium 'S' represents a species with unique morphological and molecular characteristics. Distinguishing cryptic species is a prerequisite for reducing the taxonomic impediment, especially in medically important taxa.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Molecular circumscription of the blackfly Simulium oyapockense from South America

Hamada

Andrade-Souza²,

Paul

et al. 2022

Medical Vet Entomology

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“…The lumper's concept of S. (Trichodagmia) (Shelley et al 2010;Hernández 2011) Rubtsov, 1947 [= Albellum species-group]. Altogether, it includes 78 valid species distributed in diverse biogeographical regions in six species-groups: the Albellum species-group (Palearctic, 15 species), the Canadense species-group (Nearctic and Neotropical, 20 species), the Orbitale species-group (Neotropical, 21 species), the Pictipes speciesgroup (Nearctic, three species), and the Tarsatum species-group (Nearctic and Neotropical, 19 species) (Adler 2020;Nascimento et al 2020). According to this classification, the subgenus is the fifth largest among Simulium subgenera in terms of number of species and one of the most widespread in the world.…”

Section: Introductionmentioning

confidence: 99%

Simulium (Trichodagmia) (Diptera, Simuliidae) phylogeny revisited: the Neotropical and Afrotropical connection

Molina

Gil-Azevedo

2021

EJT

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Simulium (Trichodagmia) Enderlein, 1934 has an unstable classification system. The broader concept of the subgenus includes five species-groups resulting from an extensive history of synonymisations, often outside of a phylogenetic framework. This concept also ignores relationship hypotheses with the Afrotropical subgenera S. (Anasolen) Enderlein, 1930, S. (Freemanellum) Crosskey, 1969, S. (Xenosimulium) Crosskey, 1969, and the Oviedoi species-group, with several Neotropical species of S. (Trichodagmia). We performed a morphological phylogenetic analysis to test the monophyly of S. (Trichodagmia), its species-groups, and their relationship with the above-mentioned subgenera and Oviedoi species-group. We analysed a data matrix with 69 terminal taxa and 62 characters under parsimony implied weights, with a range of concavities (k1–100), finding three categories of k. Our analysis concludes that S. (Trichodagmia) is not monophyletic, since Oviedoi and the Afrotropical subgenera group with its species-groups Tarsatum and Orbitale. Therefore, we propose a new classification for S. (Trichodagmia) by restricting it to the Orbitale species-group, revalidating S. (Hearlea) Vargas et al., 1946, S. (Hemicnetha) Enderlein, 1934, S. (Obuchovia) Rubtsov, 1947 and S. (Shewellomyia) Peterson, 1975, synonymysing S. (Xenosimulium) with S. (Anasolen), and erecting a new subgenus, S. (Disculter) subgen. nov. for Oviedoi. The geographical distribution of the groups involved is discussed.

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The Biodiversity of Blackflies (Diptera: Simuliidae) in Brazil: New Distribution Records and Updated Checklist

Molina,

Aranda,

Chimes

2024

Neotrop Entomol

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A new species in Simulium (Trichodagmia) (Diptera: Simuliidae) from Chapada Diamantina region, Brazil: cryptic diversity revealed by morphological and molecular evidence

Cited by 4 publications

References 17 publications

Molecular circumscription of the blackfly Simulium oyapockense from South America

Molecular circumscription of the blackfly Simulium oyapockense from South America

Simulium (Trichodagmia) (Diptera, Simuliidae) phylogeny revisited: the Neotropical and Afrotropical connection

The Biodiversity of Blackflies (Diptera: Simuliidae) in Brazil: New Distribution Records and Updated Checklist

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