Freshwater Macroinvertebrates in Hong Kong

Agriocnemis femina oryzae (Orange-tailed midget)

Habitat: larvae found in water filled ditches, shallow weedy habitats and marshes

General appearance: body small sized, about 12mm long; head pentagonal with postocular lobes rounded & large eyes; pale longitudinal stripe on midline of abdomen; three sword-like caudal gills with dark markings

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Adult
Head comparison
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Gills