Fishing spider Nilus albocinctus (Doleschall, 1859) of south Sarawak / Borneo (synonym Thalassius albocinctus)

The Fishing Spider uses the surface tension of the water and waits on it for prey. Sometimes one can also observe an “active hunting”, here before deliberately with the front legs an insect fallen into the water feigned. When a hungry fish approaches, it is immediately grabbed and held with the powerful chelicerae.