ADULT: Length - 9 - 20mm. Females always the larger of the two sexes. The body and cephalothorax are dark brown and oval with two opposite white lines running the entire length of the upper surface. BEHAVIOUR: Sits on vegetation and awaits for nearby fish and tadpoles which it pulls from the water. Can walk on water and stay submerged for up to an a hour. HABITAT: Wide ranging but very localised. DISTRIBUTION: Preference for sphagnum bogs, pools and marshy areas with small areas of water. PERIOD: All year round with summer the best time to see.