- Giant water bug
- 11.5 centimetre(s)
- South America (South America)
The largest aquatic insect is the giant water bug (Lethocerus maximus), a carnivorous species that inhabits Venezuela and Brazil. It has been measured up to 11.5 cm (4.53 in) long, but as it is relatively long and narrow it is not as heavy as some of this continent’s burly terrestrial beetles and stick insects.