Biema Huo & Zhao gen. nov., a new flower fly genus (Diptera, Syrphidae) from China

Keywords: Syrphinae, Melanostomini, Bacchini, new genus, new species


A new flower fly genus (Diptera, Syrphidae), Biema Huo & Zhao gen. nov. from China is described based on two new species: Biema wanglangensis Huo & Zhao gen. et sp. nov. (designated as type-species) and Biema qilianensis Huo & Liu gen. et sp. nov. The new genus can easily be distinguished by the following morphological features: head, mesonotum and scutellum black; postpronotum without pile; metasternum not reduced, posterior margin shallowly concave; katepisternum only with ventral pile patches; alula narrow, as wide as basal width of cell c; male postabdomen conspicuously more swollen than other segments, surstylus and postgonite complex, phallus unsegmented. The results of our Bayesian inference and Maximum Likelihood analysis based on sequences of the Cytochrome c oxidase subunit I (COI) gene, as well as the species delimitation tests, support the separation of Biema Huo & Zhao gen. nov. from its related taxa. Additionally, an identification key to the genera of the tribes Bacchini and Melanostomini occurring in China is provided.


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How to Cite
Huo, K.-K., Zhao, L., Mengual, X., Li, G., Liu, X., Zhao, L.-J., & Chen, Z.-N. (2022). Biema Huo & Zhao gen. nov., a new flower fly genus (Diptera, Syrphidae) from China. European Journal of Taxonomy, 852(1), 98–116.
Research article