Paragomphus cognatus 

Scope: Southern Africa
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Gomphidae

Scientific Name: Paragomphus cognatus (Rambur, 1842)
Regional Assessments:
Common Name(s):
English Rock Hocktail, Boulder Hooktail, Riffle Hooktail
Gomphus cognatus Rambur, 1842
Paragomphus dicksoni Pinhey, 1969
Taxonomic Notes: Subspecies nguelicus is a dark form. P. dicksoni Pinhey, 1969 is known only from the female holotype and without a male, it is impossible to be certain whether it is a separate species or not. However, evidence is accumulating that it is a morphological variant (dark form) of P. cognatus. Therefore, P. dicksoni is here included in P. cognatus.

Assessment Information [top]

Red List Category & Criteria: Least Concern (Regional assessment) ver 3.1
Year Published: 2010
Date Assessed: 2006-06-09
Needs updating
Assessor(s): Suhling, F.
Reviewer(s): Kipping, J., Simaika, J., Samways, M.J., Suhling, F. (Odonata Red List Authority) & Pollock, C.M. (IUCN Red List Office)
Both within and outside the region, this species has a wide distribution and is unlikely to be declining fast enough to qualify for listing in a threatened or Near Threatened category. Assessed as Least Concern within the region. Its current global status is also Least Concern.

Geographic Range [top]

Range Description:Within the southern Africa region, this species has records from rivers in all countries except Botswana. Globally, it is a widespread African species, occurring from the Cape region (South Africa) to Ethiopia, and west to Nigeria.
Countries occurrence:
Angola; Lesotho; Mozambique; Namibia; South Africa (Western Cape); Swaziland; Zambia; Zimbabwe
Additional data:
Estimated area of occupancy (AOO) - km2:2000-1000000
Range Map:59974-18

Population [top]

Population:Current population size and trends are not known.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Streams and rivers in bush and forest.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): No major threats are known at present.

Conservation Actions [top]

Conservation Actions: No specific conservation measures are known to be in place or are planned at present. Occurs in protected areas in parts of its range.

Citation: Suhling, F. 2010. Paragomphus cognatus. The IUCN Red List of Threatened Species 2010: e.T59974A12206201. . Downloaded on 16 July 2018.
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