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Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: A case study on Cylindera pseudocylindriformis complex (Coleoptera, Cicindelidae)

Cite this dataset

Huang, Jen-Pan (2022). Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: A case study on Cylindera pseudocylindriformis complex (Coleoptera, Cicindelidae) [Dataset]. Dryad. https://doi.org/10.5061/dryad.qrfj6q5k1

Abstract

Alpha taxonomy is fundamental for many biological fields. Delineation of species boundary, however, can be challenging in a species complex, where different species share a similar morphology and diagnostic characters may not be available. In this context, integrative approaches that incorporate molecular and morphological data sets and account for speciation history can be helpful to alpha taxonomy. Different approaches to species delimitation based on different assumptions are complementary, and by integrating the results from multiple approaches we can generate a more reliable and objective taxonomic decision. In this study, we applied three molecular approaches to species delimitation and inferred the demographic history based on an isolation with migration model to test a morphologically based taxonomic hypothesis for the Cylindera pseudocylindriformis complex. We discuss the association between genetic divergence and microhabitat specialization, and we further corroborated that C. subtilis sp. nov. is a valid new species by integrating the results from model-based species delimitation and the genealogical divergence index. We argue that genetic endemism can form at a small geographic scale, even in a winged insect-like tiger beetle. Our results also indicated that there may still be undocumented species diversity of Taiwanese Cylindera remaining to be discovered.

Usage notes

These are input data sets for various phylogenetic and species delimitation programs.

Funding

Ministry of Science and Technology, Award: 108-2621-B-001-001-MY3