[2] The abdomen is long and light in colour and it has 8 pairs of tentacle-like gills projecting from abdominal segments 1–8.

[3] Archichauliodes diversus is the only member of the genus (and family) found in New Zealand where it is endemic and common throughout both the North and South Islands.

[1] Archichauliodes diversus prefers stony or hard-bottom streams in bush covered and farmland areas.

The first stage of the life cycle is the egg which is light yellow and cylindrical in appearance and shape when it is first laid.

This is due to the water levels being at maximum height as the prepupa needs the soils to be saturated for the next life cycle stage to occur.

Before dying, the female lays several hundred eggs in irregular masses on nearby trees, scrubs, and rocks.

[9] Archichauliodes diversus larvae are predatory and use their large serrated mandibles to catch other aquatic invertebrates, especially mayflies,[10] such as Aoteapsyche and Atalophlebioides.

[9] The biggest threat to this species is human habitat alteration,[12] by removing overhanging bush and trees from the waterways.

This has a significant negative impact as it is a critical part in the life cycle,[10] though A. diversus is not regarded as a ‘clean-water’ taxon.