Freshwater Macroinvertebrates in Hong Kong

Trithemis aurora (Crimson dropwing)

Habitat: larvae associated with dense vegetation in streams, ponds and marshes

General appearance: body relatively medium sized, up to about 16mm long; head pentagonal with large reddish brown markings behind eyes; legs long, slender with dark markings; wing sheath with distinctive reddish markings up to abdominal segment VI; abdomen ovate shaped with cloud-like markings; dorsal spines on abdominal segments III - IX and lateral spines on abdominal segements VIII - IX

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Comparison of sizes
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Hooked dorsal spines
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Head
labium
Abdomen
Abdomen