Hemicordulia okinawensis


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Hemicordulia okinawensis
Species Authority: Asahina, 1947

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2009
Date Assessed: 2007-03-01
Assessor(s): Karube, H.
Reviewer(s): Clausnitzer, V. & Kalkman, V. (Odonata Red List Authority)
This species is endemic to the Okinawa islands and Amami islands (Ryukyu archipelago, southwestern Japan). It is quite common within its small range and inhabits artificial ponds. There is no indication that the population has decreased.
1996 Vulnerable

Geographic Range [top]

Range Description: This species endemic to the Okinawa islands and Amami islands (Ryukyu archipelago, southwest Japan).
Japan (Nansei-shoto)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The species is common within its range.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: The species inhabits ponds, swamps, slow streams, artificial dams and ponds.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The habitat is being lost to agricultural practices, which is also contributing to water pollution, along with domestic and industrial expulsions.

Conservation Actions [top]

Conservation Actions: Research into the life history and taxonomy of this species is required, as is its current status regarding population size and trend.

Citation: Karube, H. 2009. Hemicordulia okinawensis. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 04 September 2015.
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