Dolomedes sulfureus (Pisauridae) [Japanese name : io-iro hashiri-gumo]
These spiders usually wait for their prey on grass, on the edges of ponds
or streams. And they run over the surface of ponds and streams. They are
known to capture small fish and frogs. The mother carries egg sacs around
Later, at the tip of a plant, they spin a substantial nursery web in
which the young hatch. The mother stands guard over the young until they
are old enough to look out for themselves.
The length is 20-28 mm.
It is found throughout Japan.
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