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Ophiogomphus incurvatus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA INSECTA ODONATA GOMPHIDAE

Scientific Name: Ophiogomphus incurvatus
Species Authority: Carle, 1982
Common Name(s):
English Appalachian Snaketail
Synonym(s):
Ophiogomphus alleghaniensis Carle, 1982
Taxonomic Notes: Garrison (1995) considered O. alleghaniensis a possible synonym of O. incurvatus.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2007
Date Assessed: 2007-03-01
Assessor(s): Abbott, J.C.
Reviewer(s): Donnelly, N., Suhling, F. & Clausnitzer, V. (Odonata Red List Authority)
Justification:
Ophiogomphus incurvatus occurs in the piedmont/foothills on either side of the Appalachians from Alabama to Maryland. It is known from 20 streams in five states and the larvae susceptible to pollution. The species is declining because of the unusual susceptibility of the larvae to flood scouring and pollution. Nearly meets criteria for B1ab(iii).
History:
1996 Lower Risk/near threatened (Baillie and Groombridge 1996)
1996 Vulnerable
1996 Vulnerable
1994 Rare (Groombridge 1994)
1994 Indeterminate (Groombridge 1994)
1990 Rare (IUCN 1990)
1990 Indeterminate (IUCN 1990)
1988 Indeterminate (IUCN Conservation Monitoring Centre 1988)
1988 Rare (IUCN Conservation Monitoring Centre 1988)
1986 Rare (IUCN Conservation Monitoring Centre 1986)
1986 Indeterminate (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: Endemic to the United States. Occurs in the piedmont/foothills on either side of the Appalachians from Alabama to Maryland (NatureServe 2006).
Countries:
Native:
United States (Alabama, Maryland, North Carolina, South Carolina, Tennessee, Virginia, West Virginia)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Current population size is unknown.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Clear streams at low elevations in the open, with sandy or gravely riffles (Dunkle 2000).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Larvae are susceptible to alterations in stream flow due to clear cutting/deforestation, agriculture, and development that produce flood scouring, siltation and pesticide use (NatureServe 2006). Chemical control of gypsy moths might be a problem (NatureServe 2006).

Conservation Actions [top]

Conservation Actions: Populations of O. I. Incurvatus are found in the Pisgah National Forest of North Carolina, Patuxent Wildlife Research Center of Maryland, and a Clemson University research area and the Savanna River Plant in South Carolina.

Citation: Abbott, J.C. 2007. Ophiogomphus incurvatus. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 22 October 2014.
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