Freshwater Macroinvertebrates in Hong Kong

Euphaea decorata (Black-banded gossamerwing)

Habitat: larvae found in clean and fast flowing streams

General appearance: body relatively medium sized, up to about 15mm long; head rounded with three pale spots between eyes; labium flat, subrectangular with domb-shaped lingua; no setae on prementum, row of spines along lateral margin of prementum; three large sac-like caudal gills with long and pointed end; seven pairs of filamentous lateral abdominal gills

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