Paragomphus genei 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Gomphidae

Scientific Name: Paragomphus genei (Selys, 1841)
Regional Assessments:
Common Name(s):
English Common Hooktail
French Gomphe de Géné, Le Gomphe De Géné
Gomphus excelsus Costa, 1884
Gomphus genei Selys, 1841
Mesogomphus genei Selys, 1841
Paragomphus genei ssp. ndzuaniensis Levasseur, 2007
Taxonomic Notes: Melanic insular subpopulations from the Anjouan island have been described as a distinct subspecies, Paragomphus genei ndzuaniensis Levasseur, 2007. As similar subpopulations are known in mainland Africa, more genetic research should be done before validating such subspecific division, which was done based on very weak criteria and without taking the variability of other subpopulations into account.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2015-11-04
Assessor(s): Boudot, J.-P., Clausnitzer, V., Samraoui, B., Suhling, F., Dijkstra, K.-D.B. & Schneider, W.
Reviewer(s): Kipping, J. & Samways, M.J.
Facilitator/Compiler(s): Alomari, K.
Paragomphus genei is a widespread species with no known major threats and it is unlikely to be declining fast enough to qualify for listing in a threatened category. It is therefore assessed as Least Concern. However, some disjunct subpopulations in Europe and Arabia deserve conservation attention.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Paragomphus genei is widespread in Africa (except in dense forests), the Levant, Arabia and southern Europe. It probably occurs in most of the Afrotropical countries, although records from many are still wanting. There are aggregates of localities in southern Europe in Iberia, Sardinia and Sicily, as well in the Maghreb, the Levant and southern Arabia, plus scattered records in time and space in Algeria, Morocco, Corsica and Chad (Testard 1975). No records are available from Libya but this species is likely to be present there. A single old record from Egypt probably refers to Paragomphus pumilio. Insular melanic subpopulations are known from the Comoros Archipelago (Levasseur 2007).
Countries occurrence:
Algeria; Angola (Angola); Benin; Botswana; Burkina Faso; Cameroon; Central African Republic; Chad; Comoros; Congo, The Democratic Republic of the; Côte d'Ivoire; Ethiopia; Ghana; Israel; Italy (Italy (mainland), Sardegna, Sicilia); Jordan; Kenya; Lebanon; Liberia; Malawi; Mali; Morocco; Mozambique; Namibia (Caprivi Strip, Namibia (main part)); Nigeria; Oman; Palestinian Territory, Occupied; Portugal (Portugal (mainland)); Saudi Arabia; Sierra Leone; Somalia; South Africa (Eastern Cape Province, Gauteng, KwaZulu-Natal, Limpopo Province, Mpumalanga, Northern Cape Province, Western Cape); Spain (Spain (mainland)); Sudan; Syrian Arab Republic; Tanzania, United Republic of; Togo; Tunisia; Uganda; United Arab Emirates; Yemen (North Yemen, Socotra, South Yemen); Zambia; Zimbabwe
Present - origin uncertain:
France (Corsica)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:In central, eastern and southern Africa, this species often has enormous larval populations of up to 100 individuals per square metre in perennial sections of ephemeral rivers. The same situation is known in Tunisia but the abundance of this species is generally much variable in northern Africa and southern Europe. The population size is unknown in the Arabian Peninsular.
Current Population Trend:Unknown
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:UnknownPopulation severely fragmented:Unknown
Continuing decline in subpopulations:No
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:Paragomphus genei reproduces in open streams, rivers and pools, including man-made pools created for sheep drinking in southwest Europe, that contributed recently to expansion of its range in southwest Iberia. It is also found in natural and man-made lakes in southern Europe and in oases. This species is even found in temporary waters, where it is able to complete its development before drying thank to a short larval development (about two months). It is multivoltine (has two or more broods of offspring per year) in northern Africa and further south the emergences occur continuously during the year.
Systems:Terrestrial; Freshwater
Movement patterns:Unknown

Use and Trade [top]

Use and Trade: This species is not utilised.

Threats [top]

Major Threat(s): There are no threats at the global scale, although local declines may occur due to habitat modification (dams, water extraction, agriculture) and water pollution. Climate change may be a threat in the future.

Conservation Actions [top]

Conservation Actions: This species is widespread with no threats at the global scale and therefore does not need any conservation actions. On a regional scale, protection of the habitat is needed, particularly in the Mediterranean basin. As this species is highly variable in terms of its colour pattern, from the quasi-absence of melanin to entirely black subpopulations, additional research in the field of genetic variability and taxonomy would be welcomed.

Citation: Boudot, J.-P., Clausnitzer, V., Samraoui, B., Suhling, F., Dijkstra, K.-D.B. & Schneider, W. 2016. Paragomphus genei. The IUCN Red List of Threatened Species 2016: e.T59976A83861834. . Downloaded on 18 September 2018.
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