Freeliving Caddisfly
The freeliving caddisfly's scientific name is Hydrobiosis and it grows up to 2 cm long.
Many caddis larvae build cases in which they live, made of small stones, sand grains, even twigs and pieces of leaf. Some move around taking their cases with them. Others are free living, but may build "houses" of small stones to which they can retreat.
These types of caddis are found in a range of water and stream types in moderate-to-fast flowing water, amongst or on stony substrates. Several species are also found in lowland, soft-bottomed streams, and often form one of the more sensitive groups in these habitats.
The caddisfly makes its shelter out of stones and hides there until it has grown wings. Then it climbs out of the stream and flies away to find somewhere to lay its eggs.
Did you know? Adult caddisflies are attracted to ultra-violet light.
Below is a picture of an adult caddisfly.
