Wings longer than the body in male; only just overlap abdomen in female.
Runs (may fly at very high temperatures).
Also sometimes known as 'Waterbug'
Lifecycle
The ootheca (egg case) containing 6 – 28 eggs is carried by the female for several days before being deposited. Sometimes cemented down and tend to be grouped.
Hatch in 1 – 2 months.
Nymphs usually develop in 5 months, but it can take up to 15 months.
Habits
Principally inside buildings, drains, basements, pipe ducts and risers.