Author: Mocsáry, 1894

Type species: Dioxys pannonica Mocsáry, 1877, monobasic
Clade: Anthophila
Family: Megachilidae
SubF: Megachilinae
Tribe: Dioxyini
Distinctive traits
  • 2 submarginal cells
  • females without scopa (cleptoparasitic bees)
  • bidentate mandible
  • scutellum with two lateral spines
  • female with conic, elongated sternite 6
Pictures of distinctive traits.
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Morphologically close genera and how to distinguish them
  • Paradioxys - Dioxys, Aglaoapis & Metadioxys
Paradioxys species have a clear carina between the lateral teeth of the scutellum . The tip of the female abdomen is needle-like due to an elongate and pointed sternite 6.
Dioxys, Aglaoapis & Metadioxys species have no carina between the lateral teeth of the scutellum. The tip of the female abdomen is not needle-like.
  • Paradioxys - Ensliniana
Paradioxys species have a scutellum with two postero-lateral spines.
Ensliniana species have a rounded scutellum.
  • Paradioxys - Stelis
Paradioxys species have the second recurrent vein reaching within the second submarginal cell.
Stelis species have the second recurrent vein reaching at or beyond (apically) to the second submarginal cell.
  • Paradioxys - Coelioxys
Paradioxys species have rounded axillae, and 2 spine-like postero-lateral projections of the scutellum.
Coelioxys species have 2 tooth-like axillae and a rounded scutellum.
General comments on Paradioxys species identification
Species can be distinguished based on lateral ornaments on metasomal tergites and mandible characters, easier to see when mandibles are open.
Paradioxys species found in Europe (Ghisbain et al. 2023):
Paradioxys pannonicus (Mocsáry, 1877)
Online resources:
Exotic Bee ID (World)
WestPalBees (West Palearctic)
Page contributors:
  • Adrien Perrard (Dec. 2023)
  • Adrien Perrard (Dec. 2019)

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References used to write this page:
  • Ghisbain, G., Rosa, P., Bogusch, P., Flaminio, S., Le Divelec, R., Dorchin, A., Kasparek, M., Kuhlmann, M., Litman, J., Mignot, M., Müller, A., Praz, C., Radchenko, V.G., Rasmont, P., Risch, S., Roberts, S.P.M., Smit, J., Wood, T.J., Michez, D. & Reverte, S. (2023). The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila). Zootaxa, 5327(1), 1-147.
  • Michener, C.D. 2007. The Bees of the World, 2nd Edition. The John Hopkins University Press, Baltimore.
  • Michez D., Rasmont P., Terzo, M., Vereecken, N. 2019. Abeilles d'Europes. Hymenoptères d'Europes, Volume 1. N.A.P. Editions.
  • Nieto, A., Roberts, S. P., Kemp, J., Rasmont, P., Kuhlmann, M., García Criado, M., ... & Michez, D. 2014. European red list of bees. Luxembourg: Publication Office of the European Union, 98.
  •  Rasmont, P., Devalez, Jelle, Pauly, A., Michez, D. & Radchenko, V.G. 2017. Addition to the checklist of IUCN European wild bees (Hymenoptera: Apoidea). Annales de la Société entomologique de France 53: 17-32.