Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Insecta Odonata Corduliidae

Scientific Name: Somatochlora margarita
Species Authority: Donnelly, 1962
Common Name(s):
English Texas Emerald
Taxonomic Source(s): Schorr, M. and Paulson, D. 2013. World Odonata List. Tacoma, Washington, USA Available at: (Accessed: 20 November 2013).

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Assessor(s): Abbott, J.C.
Reviewer(s): Clausnitzer, V., Donnelly, N. & Suhling, F. (Odonata Red List Authority)
This species has a restricted range (currently only seven locations are known) and we know very little about its biology or larval habitat. It has been very undersurveyed.
Previously published Red List assessments:
1996 Vulnerable (VU)
1994 Rare (R)
1990 Rare (R)
1988 Rare (R)
1986 Rare (R)

Geographic Range [top]

Range Description: Endemic to two states in the United States (Louisiana and Texas). The species currently is known from six counties in these two states.
Countries occurrence:
United States (Louisiana, Texas)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Only seven locations are known.
Current Population Trend: Stable
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Low, gently rolling, clear, sandy streams or possibly forest seepages.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Unknown.

Citation: Abbott, J.C. 2006. Somatochlora margarita. The IUCN Red List of Threatened Species 2006: e.T20344A9188944. . Downloaded on 08 October 2015.
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