In this section
- Free-living caddis (Costachorema)
- Free-living caddis (Ecnomina)
- Free-living caddis (Edpercivalia)
- Free-living caddis (Hydrobiosella)
- Free-living caddis (Hydrobiosis)
- Free-living caddis (Hydrochorema)
- Free-living caddis (Neurochorema)
- Free-living caddis (Plectrocnemia)
- Free-living caddis (Polyplectropus)
- Free-living caddis (Psilochorema)
- Free-living caddis (Tiphobiosis)
- Free-living caddis (Zelandoptila)
- Net-building caddis (Aoteapsyche)
- Net-building caddis (Diplectrona)
- Net-building caddis (Orthopsyche)
Hydropsychid caddis larvae have hardened (sclerotised) plates on each of the 3 thoracic segments, and gill tufts under the abdomen. Diplectrona caddis larvae have a more “hairy” appearance than the related Aoteapsyche, and they have 7 sets of abdominal like gills (like Aoteapsyche). In Diplectrona the foreleg trochantin (segment at the base of the leg) has a spine that is not forked, unlike Aoteapsyche.
Diplectrona larvae are mostly found in bush covered streams in the lower North Island and the South Island.
They construct filter-feeding nets attached to the streambed to trap drifting particulate food items.
- Hard bottom: 9
- Soft bottom: unassigned
The tolerance values (ranging from 0 to 10) give an indication of which are the sensitive taxa (values of 8 or more) and which are the tolerant taxa (values of 3 or less). For more information see: Indicator species
Diplectrona larvae are most likely to be found in streams with good water quality. They have a tolerance value of 9 for hard bottom sites (there is no soft bottom tolerance value).