description Asian amberwing (Brachythemis contaminata) Overview
Brachythemis contaminata, commonly known as the Asian amberwing or ditch jewel, is a species of dragonfly in the family Libellulidae found throughout South and Southeast Asia. The insect is most easily recognized by its physical sexual dimorphism, particularly the distinct amber-to-orange tinted wings of mature males. It typically breeds in stagnant or slow-moving water, such as ponds, marshes, and agricultural ditches, demonstrating a high tolerance for polluted and nutrient-rich environments. This adaptability allows the species to thrive in human-altered landscapes.
help Asian amberwing (Brachythemis contaminata) FAQ
How can I identify a male Asian amberwing?
A mature male Brachythemis contaminata has conspicuous amber-orange coloring across much of its wings and a reddish-orange body. Females and immature males are paler, with clearer wings and darker markings.
Why is Brachythemis contaminata often found near polluted water?
The species tolerates warm, stagnant, and organically enriched water better than many sensitive dragonflies. It is frequently seen around ponds, drains, canals, and slow-moving urban waterways.
Does seeing Asian amberwings mean the water is clean?
No, this dragonfly's tolerance of degraded water means its presence alone is not evidence of a healthy aquatic ecosystem. A site dominated by pollution-tolerant species may still have low oxygen or poor water quality.
Where is the Asian amberwing found?
Brachythemis contaminata is widespread across tropical and subtropical parts of Asia. Its range includes South Asia and extends through much of Southeast Asia, especially around lowland standing water.
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