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Species delimitation of the Hyphydrus ovatus complex in western Palaearctic with an update of species distributions (Coleoptera, Dytiscidae)
Swedish Museum of Natural History, Department of Zoology. (Bergsten Systematic Entomology Lab)
Stockholm University.
2017 (English)In: ZooKeys, ISSN 1313-2989, E-ISSN 1313-2970, Vol. 678, 73-96 p.Article in journal (Refereed) Published
Abstract [en]

The species status of Hyphydrus anatolicus Guignot, 1957 and H. sanctus Sharp, 1882, previously often confused with the widespread H. ovatus (Linnaeus, 1760), are tested with molecular and morphological characters. Cytochrome c oxidase subunit 1 (CO1) was sequenced for 32 specimens of all three species. Gene-trees were inferred with parsimony, time-free bayesian and strict clock bayesian analyses. The GMYC model was used to estimate species limits. All three species were reciprocally monophyletic with CO1 and highly supported. The GMYC species delimitation analysis unequivocally delimited the three species with no other than the three species solution included in the confidence interval. A likelihood ratio test rejected the one-species null model. Important morphological characters distinguishing the species are provided and illustrated. New distributional data are given for the following species: Hyphydrus anatolicus from Slovakia and Ukraine, and H. aubei Ganglbauer, 1891, and H. sanctus from Turkey.

Place, publisher, year, edition, pages
2017. Vol. 678, 73-96 p.
Keyword [en]
Dytiscidae, Hyphydrus, new records, Palaearctic region, Slovakia, Turkey, Ukraine, GMYC, species delimitation, reciprocal monophyly
National Category
Biological Systematics
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-2491DOI: 10.3897/zookeys.678.12886OAI: oai:DiVA.org:nrm-2491DiVA: diva2:1154289
Available from: 2017-11-02 Created: 2017-11-02 Last updated: 2017-11-20Bibliographically approved

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