The genus Platynectes (Coleoptera: Dytiscidae: Agabinae) in Central America, with the discovery of the northernmost Neotropical species in Oaxaca, Mexico, and nomenclatural notes on the subgenus Agametrus
Platynectes (Agametrus) zoque sp. nov. is described from the state of Oaxaca, Mexico. It is externally similar to the only Central American Platynectes, P. nitens (Sharp) from Panama and Costa Rica, but can be recognized by the shape of the male genitalia. The genetic distance between both species i...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | México |
| Recursos: | Universidad de Guadalajara |
| Repositorio: | Redalyc-UDG |
| OAI Identifier: | oai:redalyc.org:42571632087 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=42571632087 https://www.redalyc.org/journal/425/42571632087/ https://www.redalyc.org/journal/425/42571632087/html/ https://www.redalyc.org/journal/425/42571632087/42571632087.epub https://www.redalyc.org/journal/425/42571632087/movil |
| Access Level: | acceso abierto |
| Palavra-chave: | Biología Adephaga Taxonomy Barcoding Diving beetles New combinations |
| Resumo: | Platynectes (Agametrus) zoque sp. nov. is described from the state of Oaxaca, Mexico. It is externally similar to the only Central American Platynectes, P. nitens (Sharp) from Panama and Costa Rica, but can be recognized by the shape of the male genitalia. The genetic distance between both species is 6.8% in the cox1 gene fragment. The finding of Platynectes in Mexico extends the known distribution of the genus in the Americas by about 1,300 km to the northwest. Thirteen species of the subgenus Agametrus Sharp are currently known, occurring in the Cordilleras from Chile to Mexico. A list of all species is provided including 10 new combinations resulting from the phylogenetic analysis of Toussaint et al. (2017): Platynectes (Agametrus) boliviensis (Régimbart, 1899), P. (A.) humilis (Sharp, 1882), P. (A.) labratus (Sharp, 1882), P. (A.) nitens (Sharp, 1887), P. (A.) peruvianus (Laporte, 1835), P. (A.) rotundatus (Brinck, 1948) (all from Agametrus); P. (A.) curtulus (Régimbart, 1899), P. (A.) darlingtoni (Guéorguiev, 1971), P. (A.) gaudichaudii (Laporte, 1835), and P. (A.) muelleri (Kirsch, 1865) (all from Leuronectes Sharp). Platynectes (Gueorguievtes) darlingtoni Guéorguiev, 1972, a junior homonym of P. (A.) darlingtoni (Guéorguiev, 1971), is replaced with its junior subjective synonym P. multimaculatus Watts, 1978. |
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