Onychogomphus styx 

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
Animalia	Arthropoda	Insecta	Odonata	Gomphidae

Scientific Name:	Onychogomphus styx
Species Authority:	Pinhey, 1961
Common Name(s): English – Northern Dark Claspertail

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2016
Date Assessed:	2015-11-04
Assessor(s):	Clausnitzer, V.
Reviewer(s):	Kipping, J. & Dijkstra, K.-D.B.
Justification: Onychogomphus styx is a widespread species recorded from localities wide apart (west Uganda, west Kenya and west Tanzania), and a wider distribution in between these localities. Its presence in central Africa (in Angola and Gabon) and in western Africa (from Ghana to Sierra Leone) requires confirmation. More surveys are needed. No known major threats are known to this species and it is unlikely to be declining fast enough to qualify for listing in a threatened category. Therefore, it is assessed as Least Concern.
Previously published Red List assessments:	2010 – Least Concern (LC) Download assessment 2006 – Near Threatened (NT) Download assessment

Geographic Range [top]

Range Description:	This species has been recorded from Kenya (Kakamega Forest), forests in Uganda (Semliki) and western Tanzania. Its presence in central Africa (in Angola and Gabon) and in western Africa (from Ghana to Sierra Leone) requires confirmation.
Countries occurrence:	Native: Kenya; Tanzania, United Republic of; Uganda
Additional data:
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	The population size is unknown.
Current Population Trend:	Unknown
Additional data:	♦ Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology:	This species occurs around rainforest streams.
Systems:	Terrestrial; Freshwater

Use and Trade [top]

Use and Trade:

This species is not used.

Threats [top]

Major Threat(s):

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

Conservation Actions [top]

Conservation Actions:

No conservation measures are known but information on taxonomy, population ecology, habitat status and population trends would be valuable. Habitat and site-based conservation is also required.