Family Belostomatidae - Giant Waterbugs

This page contains pictures and information about Giant Waterbugs in family Belostomatidae that we found in the Brisbane area, Queensland, Australia.

Giant Waterbug - Lethocerus insulanus

Body length 60mm
Giant Waterbugs are sometimes known as Fish-killer Bugs. They hunt tadpoles, water insects and small fish in flash water. They hunt with the front pair of strong legs. They have two tubes at the abdomen tip for respiratory. They store air between wings and abdomen for breathing.
P1030335.jpg (172975 bytes) P1030335.jpg (172975 bytes)
We found this Giant Waterbug outside our office on Oct 2010. We believed it was attracted there by the fluorescent lamp. It was slowly crawling on the floor.   

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, pp 487.
2. A field guide to insects in Australia - By Paul Zborowski and Ross Storey, Reed New Holland, 1996, p97.
3. Northern Territory Insects, A Comprehensive Guide CD - Graham Brown, 2009. 

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Last updated: March 10, 2012.