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- Title
The effectiveness of DNA‐based delimitation in <italic>Synchonnus</italic> net‐winged beetles (Coleoptera: Lycidae) assessed, and description of 11 new species.
- Authors
Kusy, Dominik; Sklenarova, Katerina; Bocak, Ladislav
- Abstract
Abstract: <italic>Synchonnus</italic> Waterhouse, 1879 from Australia is revised. <italic>Achras</italic> Waterhouse, 1879 and <italic>Enylus</italic> Waterhouse, 1879 are found to be junior synonyms of <italic>Synchonnus</italic> due to the absence of diagnostic characters and result in the new combinations of <italic>Synchonnus amplus</italic> (Kleine, 1930), <italic>S. limbatum</italic> (Waterhouse, 1877), and <italic>S. segregatus</italic> (Waterhouse, 1879). <italic>Synchonnus</italic> is reported from the Australian mesic and monsoon zones, and 11 new species are described: <italic>S. flavonotatum</italic> sp. nov., <italic>S. maseki</italic> sp. nov., <italic>S. ailaketoae</italic> sp. nov., <italic>S. dubenovae</italic> sp. nov., <italic>S. chilvertonensis</italic> sp. nov., <italic>S. slipinskii</italic> sp. nov., <italic>S. monteithi</italic> sp. nov., <italic>S. eungellensis</italic> sp. nov., <italic>S. crypticum</italic> sp. nov., <italic>S. variabilis</italic> sp. nov. and <italic>S. campestris</italic> sp. nov. The morphology‐based species limits are compared with delimitation inferred from the shape of the phylogenetic tree and genetic distance. DNA‐based species limits agree with morphological delimitation in two clades, but a deep conflict was identified in another clade of <italic>Synchonnus</italic> consisting of three species with allopatric distributions and diversified genitalia, but strong similarities in <italic>cox1</italic> mtDNA sequences. The failure of molecular species delimitation in some <italic>Synchonnus</italic> points to our inability to predict the performance of a barcoding approach even in closely related lineages and calls for an integrative taxonomical approach whenever possible. The <italic>Synchonnus</italic> fauna of Australia is presented as highly diverse and fragmentation of habitat in the last ~15 million years is hypothesised as the principal factor leading to the observed alpha‐taxonomic diversity.
- Subjects
LYCIDAE; MITOCHONDRIAL DNA; GENETIC barcoding; SPECIES; MOLECULAR phylogeny
- Publication
Austral Entomology, 2018, Vol 57, Issue 1, p25
- ISSN
2052-174X
- Publication type
Article
- DOI
10.1111/aen.12266