General Description

Body brown with a tuft of gills between two tails at the tip of the abdomen. Up to 1 cm long.

Biology

These nymphs usually eat organic detritus or algae, although a few species are carnivores and prey on aquatic invertebrates. Over a hundred species live just in southern Australia.

Distribution

New Zealand, South America. Eastern mainland Australia and Tasmania.

Habitat

Streams with cool water, usually underneath rocks.

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