Red List of South African Species

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Least Concern (LC)

Rationale

This is a widespread species with no known major widespread threats that is unlikely to be declining fast enough to qualify for listing in a threatened category. It is therefore assessed as Least Concern.

In central, eastern and southern Africa, the species is assessed as Least Concern in view of its wide distribution, and because it is unlikely to be declining fast enough to qualify for listing in a threatened category. Nevertheless there is urgent need to clarify the taxonomy of this O. supinus, as it might include more localized species (Dijkstra 2007).

In western Africa, due to taxonomic confusions within the species complex, the species is listed as Data Deficient.

Distribution

The species is Onychogomphus similar to O. supinus have been found throughout Africa, e.g., Senegal (holotype O. s. xerophilus), Sierra Leone (Carfi and d'Andrea 1994) and Guinea (Legrand 2003). True O. supinus is known from southern Africa only. Records from Kenya, Mozambique, Tanzania, and possibly also Malawi and Uganda need confirmation.

It has not been recorded from central Africa yet, though likely to occur, if all records mentioned above do really belong to one species.

In eastern Africa, it has been recorded in Kenya, Tanzania, Uganda, Malawi and Burundi: various localities in Kenya, Kilimanjaro area (Tanzania), unconfirmed records from Uganda and Malawi.

In southern Africa, the range of this species is unclear due to taxonomic problems. It may only occur in South Africa, Mozambique and Zimbabwe, and hence be endemic to the southern Africa region.

In western Africa, Onychogomphus similar to O. supinus have been found in Senegal (holotype O. s. xerophilus), Sierra Leone (Carfi and d'Andrea 1994) and Guinea (Legrand 2003).

Population trend

Trend

Population size is unknown.

Threats

Water pollution and destruction of habitats due to agriculture and wood extraction are threats to this species.

Conservation

Some taxonomic work is required to determine the true extent of this species' range.

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