Habitat: Marsh, coastal grazing marsh and lowland fen.
Size: ♀ Length 20 mm (0.8 in). Leg span 70 mm (2.8 In).
Food: Aquatic invertebrates (pond skaters etc), dragonfly larvae, small fish and smaller aquatic spiders.
Season: All year round.
IUCN Conservation Status: Threatened - Vulnerable
A semi-aquatic predatory spider that hunts from perches at the waters edge.