Freshwater Macroinvertebrates in Hong Kong

Diplacodes trivialis (Blue percher)

Habitat: larvae associated with dense vegetation in ponds and marshes

General appearance: body relatively small sized, about 10mm long; head wide with bulbous eyes; legs with dark markings; wing buds long up to abdominal segment VIII; abdomen round shaped with purplish midline and some markings on each side, tip of abdomen curled upward, lateral spines inconspicuous on abdominal segments VIII - IX and no dorsal spine

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Head
Legs
Abdomen
Abdomen