Giant Water Bug vs Eastern Bat Bug

Side-by-side species comparison

Attribute Giant Water Bug Eastern Bat Bug
Scientific Name Lethocerus americanus Cimex adjunctus
Order Hemiptera Hemiptera
Family Belostomatidae Cimicidae
Size 50-65 mm 4-5 mm
Habitat Ponds & Lakes Gardens
Diet Predators Blood Feeders
Regions North America Eastern North America
Conservation Least Concern Least Concern

Giant Water Bug

One of the largest true bugs. Powerful predator that catches fish, frogs, and even small snakes. Males carry eggs on their backs until hatching. Known as "toe-biters."

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Did You Know?

Giant water bugs are devoted fathers — males carry up to 100 eggs on their backs for weeks, regularly doing push-ups at the water surface to keep eggs oxygenated.

Eastern Bat Bug

A blood-feeding ectoparasite primarily of bats in eastern North America. It can bite humans when bat colonies are removed from buildings.

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Did You Know?

It is nearly indistinguishable from the common bed bug and requires microscopic examination to tell apart.