Texas Emerald Dragonfly
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Scientific Name:
Somatochlora margarita Native
Description
A 2-inch long dragonfly species. Adults have clear wings, a yellow and brown banded thorax, a mostly brown abdomen, and bright emerald colored eyes. Nymphs (aquatic larvae) are very rarely observed and only known from a handful of specimens. Nymphs are similar to those of many other dragonflies with squat, flattened bodies that allow for clinging to underwater surfaces where they ambush other aquatic animals using their specialized mouth structures.
Range and Habitat
Endemic to only three states—Texas, Oklahoma, and Louisiana. Found in open longleaf pine and loblolly pine forests with small streams.
Behavior
Like all dragonflies, this species has aquatic larvae called nymphs or naiads. Much of the life cycle of this rare insect is unknown; but for other dragonfly species, the nymph stage may last 2 to 4 years, while the adult stage may only last a few weeks. Adults tend to fly higher than tree tops, making detection of this species even more problematic.
Population Status
Ranked globally as G2 (imperiled); ranked as S2 (imperiled) in Louisiana. Endemic with localized distribution, although they may be relatively common where found.Threats to this species include loss of open pine forests as well as alteration of stream flow.
More Information/References