Black-kneed Capsid vs North American Backswimmer

Side-by-side species comparison

Attribute Black-kneed Capsid North American Backswimmer
Scientific Name Blepharidopterus angulatus Notonecta undulata
Order Hemiptera Hemiptera
Family Miridae Notonectidae
Size 5-6 mm 10-14 mm
Habitat Orchards Ponds & Lakes
Diet Predators Predators
Regions Europe North America
Conservation Least Concern Least Concern

Black-kneed Capsid

A slender, pale green mirid bug with distinctive black knee joints. It is a beneficial predator found in European apple orchards where it feeds on red spider mites. It is one of the most important natural enemies of fruit tree red spider mite.

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Did You Know?

A single individual can consume over 100 spider mites per day, making it so effective that some orchardists manage their spraying programs to conserve this natural predator.

North American Backswimmer

A common backswimmer across North America that hunts by floating upside down at the surface. Its large eyes help it spot prey from below.

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Did You Know?

It is an important natural predator of mosquito larvae and can significantly reduce mosquito populations in small ponds.