Ophiogomphus edmundo 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Gomphidae

Scientific Name: Ophiogomphus edmundo Needham, 1951
Common Name(s):
English Edmund's Snaketail, Edmund
Taxonomic Source(s): Schorr, M. and Paulson, D. 2013. World Odonata List. Tacoma, Washington, USA Available at: (Accessed: 20 November 2013).

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2009
Date Assessed: 2007-03-01
Assessor(s): Paulson, D.R.
Reviewer(s): Clausnitzer, V. & Kalkman, V. (Odonata Red List Authority)
O. edmundo has a very restricted range and known rivers where is occurs are subject to some loss of wooded habitat that provides feeding areas when away from water. Also there is potential to be impacted by pollution, channelization, siltation, and impoundments modifying habitat away from the optimal preference for species. The species is considered Imperilled (G2) by Bick (2003).
Previously published Red List assessments:

Geographic Range [top]

Range Description:Ophiogomphus edmundo is found in three states in the United States of America including these locations: Conasauga River in adjacent Tennessee and Georgia plus four additional localities in these two states. It has an estimated Extent of Occurrence of less than 1,000 km² (G. Beaton pers. comm. 2006).
Countries occurrence:
United States (Georgia, North Carolina, Tennessee)
Additional data:
Number of Locations:5-6
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population size of O. edmundo is probably rather small because of its limited range and habitat preference. At localities where species are known, it is presumed hundreds of larvae are present but adult population at any given time remains unknown.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Species is found in clear, moderately flowing mountain streams.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): O. edmundo is currently, and will continue to be, affected by impoundments, channelization, siltation, and pollution of water. Logging and vacation home development may both pose threats, although they do not seem to be severe in the immediate future.

Conservation Actions [top]

Conservation Actions: The Conasauga River runs through fairly rugged country in national forests in Tennessee and Georgia, so it is somewhat protected. The species is also state-listed in Georgia, and its occurrence is presently being surveyed (G. Beaton, pers. comm. 2008).

Citation: Paulson, D.R. 2009. Ophiogomphus edmundo. The IUCN Red List of Threatened Species 2009: e.T15365A4526757. . Downloaded on 21 April 2018.
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