Code QH619999

Large, predatory waterbugs with raptorial forelegs and a short or long terminal respiratory siphon. Some genera (subfamily Nepinae) look remarkably scorpion-like and are commonly called water scorpions. Others (Ranatrinae) are more elongate and stick-like. Most species live among water weeds or in mud in ponds, lakes and streams but a few Ranatrinae are found under rocks in flowing water.

The respiratory siphon is alarming but harmless, but the foreleg grip is strong and most species can inflict a painful bite.

Reference:

Carver, M., Gross, G.F. and Woodward, T.E. (1991) Hemiptera. pp. 429-509. In: CSIRO, Insects of Australia. Volume 1. Melbourne University Press, Carlton, Victoria.