This spider is the one that may startle you a bit, while examining a ditch
or pond, by its sudden appearance and by its racing on eight legs towards a safe place. I
see them often on dried up banks of ponds and ditches and other moist places in meadows or
trenches. This is not a water spider, but a member of the family of wolf spiders
(Lycopidae, from Lycos = wolf). Though his family does make funnel shaped
living web, this is not a catching web, but they hunt actively for their prey. Once one
thought they did this in groups, hence the name wolf spiders. Many spiders of this family,
and especially Pirata, like to hunt near or on the water. This spider walks quick and easy
over the surface by means of water-repellent hairs on its legs, though it is quicker on
duckweed and other floating leafs. It may even go under water, and with air caught between
the hairs on the abdomen, may stay there for hours like the true water spider. The female
spins a sturdy cocoon for her eggs and carries this with her, attached to her behind.
More information and many nice pictures at the spider site of Ed
Nieuwenhuys.
Another interesting site with many spider pictures is SPIDERS ON THE WEB.