Syncordulia gracilis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Syncordulia gracilis
Species Authority: (Burmeister, 1839)
Common Name(s):
English Yellow Presba

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(i,ii,iii); D2 ver 3.1
Year Published: 2010
Date Assessed: 2007-04-01
Assessor(s): Samways, M.J.
Reviewer(s): Kipping, J., Simaika, J.P., Samways, M.J., Suhling, F. (Odonata Red List Authority) & Pollock, C.M. (IUCN Red List Unit)
This species is rare everywhere in its range, and for a long time it has not been seen at many sites where it historically was present (e.g., Michell's Pass). With the removal of invasive alien trees, it has recovered at some localities (e.g., Franschhoek Pass), however it is still Vulnerable. It is known only from a few sites (around six locations).
2007 Vulnerable

Geographic Range [top]

Range Description:This species is endemic to South Africa. Two populations are known; one in the Western Cape, and one in the eastern Cape. It appears to have disappeared from Kwazulu-Natal, Drakensberg.
South Africa (Eastern Cape Province, KwaZulu-Natal - Possibly Extinct, Western Cape)
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population: Population size is unknown, but the population appears to be stable at present.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: Montane streams and rivers, with undisturbed fynbos margins. Clear, fast, hard-bottomed rivers in treeless river valleys (Samways 2006).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Invasive alien trees are the most important threat. Agricultural activities that cause river siltation and pollution and alien fish may also be a threat.

Conservation Actions [top]

Conservation Actions: No specific measures are in place or envisaged. However, conservation of catchments through the removal of alien invasive trees is clearly beneficial for this species and research into population numbers and range, and trends/monitoring would also be valuable.

Bibliography [top]

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: (Accessed: 2 September 2010).

Samways, M.J. 1999. Diversity and conservation status of South African dragonflies (Odonata). Odonatologica 28: 13-62.

Samways, M.J. 2002. A strategy for national red listing invertebrates based on experiences with Odonata in South Africa. African Entomology 10: 43-52.

Samways, M.J. 2004. Critical species of Odonata in southern Africa. International Journal of Odonatology 7: 255-262.

Samways, M.J. 2006. Honing Red List assessments of lesser known taxa in biodiversity hotspots. Biodiversity and Conservation 16(9): 2575-2586.

Samways, M.J. 2006. National Red List of South African Odonata. Odonatologica 35: 341-368.

Samways, M.J. and Taylor, S. 2004. Impacts of invasive alien plants on red-listed South African dragonflies (Odonata). South African Journal of Science 100: 78-80.

Tarboton, W. and Tarboton, M. 2002. A fieldguide to the dragonflies of South Africa. Privately published by the authors, Nylstroom.

Citation: Samways, M.J. 2010. Syncordulia gracilis. In: The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 29 August 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided