genus Xenos Rossius, 1793 Original publication Chronological account- Schistosiphon Pierce, 1908 synonym of Xenos Rossius, 1793
- Acroschismus Pierce, 1908 synonym of Xenos Rossius, 1793
- Vespaexenos Pierce, 1909 synonym of Xenos Rossius, 1793
- Belonogastrechthrus Pierce, 1911 synonym of Xenos Rossius, 1793
- Clypoxenos Brèthes, 1923 synonym of Xenos Rossius, 1793
- Brasixenos Kogan & Oliveira, 1966 synonym of Xenos Rossius, 1793
2 Subgenus(era) 40 species- Xenos (Xenos) circularis Kifune & Maeta, 1985
- Xenos (Xenos) formosanus Kifune & Maeta, 1985
- Xenos (Xenos) provesparum Kifune, 1986
- Xenos (Xenos) yamaneorum Kifune & Maeta, 1985
- Xenos acinctus (Kogan & Oliveira, 1966)
- Xenos afer Pasteels, 1950
- Xenos americanus (Brèthes, 1923)
- Xenos araujoi Oliveira & Kogan, 1962
- Xenos argentinus Brèthes, 1923
- Xenos bahiensis (Kogan & Oliveira, 1966)
- Xenos boharti Hofmann, 1965
- Xenos bohlsi Hoffmann, 1914
- Xenos bonairensis Brèthes, 1923
- Xenos brasiliensis (Kogan & Oliveira, 1966)
- Xenos fluminensis (Kogan & Oliveira, 1966)
- Xenos formosanus Kifune & Maeta, 1985
- Xenos hamiltoni Kathirithamby & Hughes, 2006
- Xenos hebraei Kinzelbach, 1978
- Xenos hospitus Oliveira & Kogan, 1962
- Xenos hunteri (Pierce, 1909)
- Xenos indespectus Oliveira & Kogan, 1962
- Xenos iviei Kifune, 1983
- Xenos iviei Kifune, 1983
- Xenos kifunei Cook & Mathison, 1997
- Xenos minor Kinzelbach, 1971
- Xenos moutoni (du Buysson, 1903)
- Xenos niger Pasteels, 1950
- Xenos nigrescens Brues, 1903
- Xenos occidentalis (Kogan & Oliveira, 1966)
- Xenos pallidus (Brues, 1903)
- Xenos pecki Kirby, 1813
- Xenos peruensis Kifune, 1979
- Xenos provesparum Kifune, 1986
- Xenos rostratus Trois, 1984
- Xenos rubiginosi (Pierce, 1909)
- Xenos stuckenbergi Pasteels, 1957
- Xenos vesparum Rossius, 1793 type species
- Xenos vespularum Kifune & Maeta, 1975
- Xenos zavattarii (Pierce, 1911)
- Xenos zilkani (Kogan & Oliveira, 1966)
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