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A, B Cheilosia venosa, metaleg and wing C C. hercyniae, male head. |
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| Part of: Ståhls G, Barkalov AV (2017) Taxonomic review of the Palaearctic species of the Cheilosia caerulescens-group (Diptera, Syrphidae). ZooKeys 662: 137-171. https://doi.org/10.3897/zookeys.662.11267 |