Integrative Taxonomy of Hoverfly Species
Summary
Integrative taxonomy has transformed the classification of hoverflies (Diptera: Syrphidae) by combining traditional morphological study with molecular genetics and ecological or biogeographical data. This holistic approach resolves challenges posed by subtle morphological variation and cryptic diversity, yielding more robust species delimitations. Central to this methodology is DNA barcoding of the mitochondrial cytochrome c oxidase subunit I gene, supplemented by geometric morphometrics of wing and genital structures and, where available, ecological niche modelling. Integrative analyses have uncovered numerous previously unrecognised species, clarified species complexes in genera such as Merodon and Eumerus, and provided insight into evolutionary histories linked to palaeogeographic events. Beyond pure systematics, this work underpins pollinator conservation and agricultural pest management by ensuring accurate identification and mapping of species distributions on a global scale.
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Integrative Taxonomy of Hoverfly Species publication trend
The graph below shows the total number of articles in integrative taxonomy of hoverfly species across all publications each year (not limited to Nature Index journals).
Technical terms
Integrative taxonomy: A method that combines morphological, molecular and ecological data to delimit species.
DNA barcoding: Sequencing of a standardised fragment of the mitochondrial COI gene to aid species identification.
Geometric morphometrics: Quantitative analysis of organismal shape using landmark coordinates.
Cryptic species: Genetically distinct species that are morphologically similar and often unrecognised by traditional taxonomy.
Mitochondrial haplotype: A set of mitochondrial DNA variants that define genetic lineages within or between species.
References
- Taxonomic complexity in the genus Merodon Meigen, 1803 (Diptera, Syrphidae). ZooKeys (2021).
- Revision of the Merodon serrulatus group (Diptera, Syrphidae). ZooKeys (2020).
- Disentangling a cryptic species complex and defining new species within the Eumerus minotaurus group (Diptera: Syrphidae), based on integrative taxonomy and Aegean palaeogeography. Contributions to Zoology (2018).
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