Erpetogomphus

{{Short description|Genus of dragonflies}}

{{Italic title}}

{{Automatic taxobox

| taxon = Erpetogomphus

| fossil_range = {{fossilrange|Miocene|Present}}

| image = Eastern_Ringtail_-_Erpetogomphus_designatus,_Claude_Moore_Park,_Va._-_5971974765.jpg

| image_caption = Erpetogomphus designatus

| authority = Selys, 1858

}}

Erpetogomphus is a genus of dragonfly in the family Gomphidae. They are commonly known as ringtails. Most of the species are predominantly green coloured and the males have a moderately clubbed tail.{{cite book|last=Paulson|first=Dennis R.|title=Dragonflies and Damselflies of the West|year=2009|publisher=Princeton University Press|isbn=978-0-691-12281-6}} A fossil species are known from the Miocene Mexican amber{{Cite journal|last1=Zheng|first1=Daran|last2=Nel|first2=André|last3=Jarzembowski|first3=Edmund A.|last4=Chang|first4=Su-Chin|last5=Zhang|first5=Haichun|last6=Wang|first6=Bo|date=2019-01-02|title=Exceptionally well-preserved dragonflies (Insecta: Odonata) in Mexican amber|url=https://www.tandfonline.com/doi/full/10.1080/03115518.2018.1456562|journal=Alcheringa: An Australasian Journal of Palaeontology|language=en|volume=43|issue=1|pages=157–164|doi=10.1080/03115518.2018.1456562|bibcode=2019Alch...43..157Z |s2cid=134070211 |issn=0311-5518|url-access=subscription}}

The genus contains the following species:{{World Odonata List}}

• Erpetogomphus agkistrodon {{small|Garrison, 1994}}
• Erpetogomphus boa {{small|Selys, 1859}}
• Erpetogomphus bothrops {{small|Garrison, 1994}} – one-striped ringtail{{Cite iucn | author = Paulson, D. R. | title = Erpetogomphus bothrops | volume = 2009 | page = e.T165051A5975649 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T165051A5975649.en | access-date = 24 December 2017}}
• Erpetogomphus compositus {{small|Hagen in Selys, 1858}} – white-belted ringtail{{cite web|title=North American Odonata|url=http://www.pugetsound.edu/academics/academic-resources/slater-museum/biodiversity-resources/dragonflies/north-american-odonata/|publisher=University of Puget Sound|accessdate=5 August 2010|year=2009|archive-date=11 July 2010|archive-url=https://web.archive.org/web/20100711213624/http://www.pugetsound.edu/academics/academic-resources/slater-museum/biodiversity-resources/dragonflies/north-american-odonata/|url-status=dead}}
• Erpetogomphus constrictor {{small|Ris, 1918}} – knob-tipped ringtail{{Cite iucn | author = Paulson, D. R. | title = Erpetogomphus constrictor | volume = 2009 | page = e.T164984A5952895 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T164984A5952895.en | access-date = 24 December 2017}}
• Erpetogomphus cophias {{small|Selys, 1858}}
• Erpetogomphus crotalinus {{small|(Hagen in Selys, 1854)}} – yellow-legged ringtail
• Erpetogomphus designatus {{small|Hagen in Selys, 1858}} – eastern ringtail
• Erpetogomphus elaphe {{small|Garrison, 1994}}
• Erpetogomphus elaps {{small|Selys, 1858}} – straight-tipped ringtail
• Erpetogomphus erici {{small|Novelo & Garrison, 1999}}
• Erpetogomphus eutainia {{small|Calvert, 1905}} – blue-faced ringtail
• Erpetogomphus heterodon {{small|Garrison, 1994}} – dashed ringtail
• Erpetogomphus lampropeltis {{small|Kennedy, 1918}} – serpent ringtail
• Erpetogomphus leptophis {{small|Garrison, 1994}} – dark-shouldered ringtail{{Cite iucn | author = Paulson, D. R. | title = Erpetogomphus liopeltis | volume = 2009 | page = e.T165021A5965113 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T165021A5965113.en | access-date = 24 December 2017}}
• Erpetogomphus liopeltis {{small|Garrison, 1994}}
• Erpetogomphus ophibolus {{small|Calvert, 1905}}
• Erpetogomphus sabaleticus {{small|Williamson, 1918}}
• Erpetogomphus schausi {{small|Calvert, 1919}}
• Erpetogomphus sipedon {{small|Calvert, 1905}}
• Erpetogomphus tristani {{small|Calvert, 1912}}
• Erpetogomphus viperinus {{small|Selys, 1868}}