Kōrero: Life in fresh water

Spiral caddis (5 o 6)

Spiral caddis

Larvae of the native spiral caddis (Helicopsyche species) make spiral cases using tiny grains of sand, which they attach to their bodies. The weight of the case helps anchor the caddis to the stream bed in fast flowing waters. Typically the species are 2.5 millimetres across, and are found only in very clean waters.

Te whakamahi i tēnei tūemi

Private collection
Photograph by Stephen Moore

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Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Roger Young, 'Life in fresh water - Invertebrates', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/11633/spiral-caddis (accessed 13 July 2020)

He kōrero nā Roger Young, i tāngia i te 24 Sep 2007