Megalagrion leptodemas


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Megalagrion leptodemas
Species Authority: (Perkins, 1899)
Common Name(s):
English Crimson Hawaiian Damselfly

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v) ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Assessor(s): Polhemus, D.A.
Reviewer(s): Clausnitzer, V. & Suhling, F. (Odonata Red List Authority)
Recent surveys have indicated that this species is confined to widely scattered subpopulations in four drainages in the Koolau Mountains of Oahu. One of these catchments has been the site of recent freeway construction.
1996 Endangered

Geographic Range [top]

Range Description: Endemic to the island of Oahu, Hawaiian Islands.
United States (Hawaiian Is.)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There probably are less than 1,000 individuals remaining at present.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Headwater stream pools in mountainous terrane.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Degredation of watershed by feral ungulates and introduced Poeciliid fishes.

Conservation Actions [top]

Conservation Actions: Protection of forests and streams by state management.

Citation: Polhemus, D.A. 2006. Megalagrion leptodemas. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 28 August 2015.
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