Xenos vesparum
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Strepsiptera
Family:	Stylopidae
Subfamily:	Xeninae
Genus:	Xenos
Species:	Xenos vesparum Rossi, 1793

Xenos vesparum is an insect species, whose females are permanent entomophagous endoparasites of Polistes paper wasps. They dwell their whole life in the abdomen of the wasp.

[edit] Sources

• Mating of Xenos vesparum
• Xenos vesparum electron-microscope image
• R. Dallai, L. Beani, J. Kathirithamby, P. Lupetti and B. A. Afzelius (2003), "New findings on sperm ultrastructure of Xenos vesparum (Rossi) (Strepsiptera, Insecta)", Tissue and Cell 35: 19, doi:10.1016/S0040-8166(02)00099-X 
• Fabiola Giusti, Luigi Dallai, Laura Beani, Fabio Manfredini and Romano Dallai (2007), "The midgut ultrastructure of the endoparasite Xenos vesparum (Rossi) (Insecta, Strepsiptera) during post-embryonic development and stable carbon isotopic analyses of the nutrient uptake", Arthropod Structure & Development 36: 183, doi:10.1016/j.asd.2007.01.001 

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