The Giant Water Bug is one of the largest insects in North America, reaching 2.5 inches, with powerful raptorial forelegs used to capture prey as large as small frogs, fish, and even baby ducks. Males carry eggs on their backs until they hatch, a form of paternal care rare among insects. They are attracted to lights and are sometimes called 'electric light bugs.'
Best time to see a Giant Water Bug
The best time to see a Giant Water Bug is June–September, when about 63% of U.S. sightings happen, based on 529 research-grade iNaturalist observations.
Not certain it is a Giant Water Bug? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent Giant Water Bug sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Giant Water Bug?
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