Wing Shape in the Taxonomic Identification of Genera and Species of the Subfamily Dolichopodinae (Dolichopodidae, Diptera)
https://doi.org/10.25587/SVFU.2019.69.25523
Abstract
Characters of the wing morphology have significant importance in the systematics and taxonomy of the Dolichopodidae family, but there are only a few studies concerning the variation in wing shape of dolichopodid flies. The detailed analysis of interspecific and generic wing shape variation can provide data for the taxonomic studies, while understanding of the selective forces shaping wing morphometric characters is important for studying the pattern of their evolutionary change. A geometric morphometric analysis was carried out on 72 species belonging to 5 genera of the subfamily Dolichopodinae in order to determine whether wing shape can be successfully used as a character for taxonomic discrimination of morphologically similar genera and species. Canonical variate analysis based on wing shape data showed significant differences among the studied genera and species. The analysis revealed wing shape variation, most of which was associated with displacement of posterior crossvein and apical sections of veins CuA1 , R4+5 and M1+2, the two latter of which exhibited a trend toward convergence. Discriminant analysis allowed for the correct genera identification from 74.50% to 91.58% specimens. The overall success for the reassignment of specimens to their a priori species group was 84.04% on average. The detailed analysis of the variation in wing shape in the subfamily and out group taxa revealed evolutionary trends, the functional significance of which is discussed further. Database of wings shape will be created which can be used for taxonomic diagnostics of the family representatives and to conduct the studies of morphometric characters for various taxonomic levels.
About the Author
M. A. Chursina
Voronezh State University
Russian Federation
Russian Federation
Chursina Maria Alexandrovna – Candidate of Biological Sciences, assistant of the Department of Ecology and Systematics of Invertebrate Animals of the Medical and Biological Faculty
Voronezh
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Review
For citations:
Chursina M.A. Wing Shape in the Taxonomic Identification of Genera and Species of the Subfamily Dolichopodinae (Dolichopodidae, Diptera). Vestnik of North-Eastern Federal University. 2019;(1):32-41. https://doi.org/10.25587/SVFU.2019.69.25523
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