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Towards resolving the double classification in Erythraeus (Actinotrichida: Erythraeidae): matching larvae with adults using 28S sequence data and experimental rearing
Swedish Museum of Natural History, Department of Zoology. (Bergsten Systematic Entomology Lab)
Swedish Museum of Natural History, Department of Zoology. (Bergsten Systematic Entomology Lab)
2016 (English)In: Organisms Diversity & Evolution, ISSN 1439-6092, E-ISSN 1618-1077, Vol. 16, no 4, 761-790 p.Article in journal (Refereed) Published
Abstract [en]

The taxonomy of free-living adults and heteromorphic parasitic larvae of Parasitengona mites has in the past been treated independently resulting in a double classification. Correct linkage of names still remains unknown for many species. A holistic understanding of species is imperative for understanding their role in ecosystems. This is particularly true for groups like parasitengone mites with a radically altered lifestyle during development—parasitic to predatory. Here, we infer linkages of three nominal species of Erythraeus, using matching with 28S DNA sequence data from field-collected specimens and through laboratory rearing. The general mixed Yule coalescent method (GMYC) was used to explicitly test if field-collected specimens representing heteromorphic life instars were conspecific. The field-collected larvae were allocated to adults of Erythraeus cinereus and Erythraeus regalis, respectively. Laboratory rearing of the same two species confirmed the matching done by DNA. Rearing was also successful for Erythraeus phalangoides after eggs were treated to an imitated winter diapause. This integrative taxonomic approach of molecular, morphological, and rearing data resulted in the following synonyms: E. phalangoides (De Geer, 1778) [= Erythraeus adrastus(Southcott, 1961), syn. nov.], E. cinereus (Dugès, 1834) [= Erythraeus jowitae Haitlinger, 1987, syn. nov.], and E. regalis (C.L. Koch, 1837) [= Erythraeus kuyperi (Oudemans, 1910), syn. nov., = Erythraeus gertrudae Haitlinger, 1987, syn. nov.]. The molecular evidence confirmed the separate identity of three further members of the genus. We provide redescriptions of E. phalangoidesE. cinereus, and E. regalis after modern standards, and neotypes are designated.

Place, publisher, year, edition, pages
2016. Vol. 16, no 4, 761-790 p.
Keyword [en]
Biology, GMYC, Molecular species delimitation, Morphology, New synonyms, Parasitengona
National Category
Biological Systematics
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-2213DOI: 10.1007/s13127-016-0283-5OAI: oai:DiVA.org:nrm-2213DiVA: diva2:1060994
Available from: 2016-12-30 Created: 2016-12-30 Last updated: 2017-11-29Bibliographically approved

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