In this section
- Axehead caddis (Oxyethira)
- Cased caddis (Alloecentrella)
- Cased caddis (Pseudoeconesus)
- Cased caddis (Zelandopsyche)
- Cased caddisfly (Hudsonema)
- Kokiria caddisfly (Kokiriidae)
- Purse caddis (Paroxyethira)
- Sandy cased caddis (Oecetis)
- Sandy cased caddis (Pycnocentrella)
- Sandy cased caddis (Pycnocentria)
- Sandy cased caddis (Zelolessica)
- Smooth cased caddis (Beraeoptera)
- Smooth cased caddis (Confluens)
- Smooth cased caddis (Olinga)
- Spiral cased caddis (Helicopsyche)
- Spiral cased caddis (Rakiura)
- Stick caddis (Triplectides)
- Stick caddis (Triplectidina)
Stony cased caddis (Oeconesus)
- Stony cased caddis (Philorheithrus)
- Stony cased caddis (Pycnocentrodes)
Oeconesus caddis larvae construct mobile cases with coarse sand grains. They have a circular head with a relatively flat top circled by a carina (sharp edge). The mesonotum (second segment behind the head) has 6 coloured (sclerotised) plates, some of which have a black front edge.
Oeconesus larvae are most common in bush covered streams.
They are collector-gatherers (feeding on fine particulate organic matter) and shredders (feeding on leaf litter).
- Hard bottom: 9
- Soft bottom: 6.4
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
An abundance of Oeconesus larvae indicates good habitat and water quality, particularly if mayfly and stonefly nymphs are also abundant. They have tolerance values of 9 (hard bottom sites) and 6.4 (soft bottom sites).