Flower Bug vs Giant Water Bug

Side-by-side species comparison

Attribute Flower Bug Giant Water Bug
Scientific Name Orius insidiosus Lethocerus americanus
Order Hemiptera Hemiptera
Family Anthocoridae Belostomatidae
Size 2-3 mm 50-65 mm
Habitat Underground Ponds & Lakes
Diet Predators Predators
Regions North and South America North America
Conservation Least Concern Least Concern

Flower Bug

A tiny predatory bug widely used in biological pest control against thrips and aphids. Despite its small size it is a voracious predator consuming dozens of prey daily.

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Did You Know?

It is commercially mass-reared and sold to greenhouse growers as a living pesticide.

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.