# Alydus

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***Alydus*** is the [type genus](/source/Type_genus) of broad-headed bugs in the family [Alydidae](/source/Alydidae). There are about 11 described species in *Alydus*, including 2 extinct species.[1][2][3] Species are recorded from North America and Europe through to temperate Asia.[4]

## Species

These 11 species belong to the genus *Alydus*:

- *[Alydus angulatus](/source/Alydus_angulatus)* Hsiao, 1965
- *[Alydus calcaratus](/source/Alydus_calcaratus)* (Linnaeus, 1758) - red-backed bug - **type species** (as *[Cimex](/source/Cimex) calcaratus* Linnaeus)
- *[Alydus conspersus](/source/Alydus_conspersus)* Montandon, 1893
- *[Alydus eurinus](/source/Alydus_eurinus)* (Say, 1825)
- *[Alydus pilosulus](/source/Alydus_pilosulus)* Herrich-Schaeffer, 1847
- *[Alydus rupestris](/source/Alydus_rupestris)* Fieber, 1861
- *[Alydus scutellatus](/source/Alydus_scutellatus)* Van Duzee, 1903
- *[Alydus tomentosus](/source/Alydus_tomentosus)* Fracker, 1918
- *[Alydus zichyi](/source/Alydus_zichyi)* Horváth, 1901
- † *[Alydus pristinus](/source/Alydus_pristinus)* Germar, 1837
- † *[Alydus pulchellus](/source/Alydus_pulchellus)* Heer, 1853

## References

1. ["*Alydus* Report"](https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=108251). *Integrated Taxonomic Information System*. Retrieved 2019-04-01.

1. ["*Alydus*"](https://www.gbif.org/species/2050167). *GBIF*. Retrieved 2019-04-01.

1. ["*Alydus* Genus Information"](https://bugguide.net/node/view/2722). *bugguide.net*. Retrieved 2019-04-01.

1. Webb, Nick & Eades, David C. (2018). ["Coreoidea species file online, Version 5.0"](http://coreoidea.speciesfile.org/). Retrieved 2019-04-01.

## Further reading

- Schaefer, Carl W. & Schaffner, Joseph C. (1994). "Alydus calcaratus in North America (Hemiptera: Alydidae)". *Proceedings of the Entomological Society of Washington*. **96**: 314–317. [ISSN 0013-8797](https://www.worldcat.org/issn/0013-8797)

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Adapted from the Wikipedia article [Alydus](https://en.wikipedia.org/wiki/Alydus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Alydus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.