Venomous-bite
Guides
Lethocerus americanus
American giant water bug, electric light bug, toe biter, fish killer
Lethocerus americanus is a large aquatic true bug native to southern Canada and the northern United States. Adults measure 5–6 cm in length, with females averaging larger than males. The species is a generalist predator in freshwater habitats and is known for its powerful bite, which it uses to subdue prey and defend itself. It is attracted to electric lights at night, earning it the common name 'electric light bug.'