Common Gnat vs Neotropical Shield Bug

Side-by-side species comparison

Attribute Common Gnat Neotropical Shield Bug
Scientific Name Culex modestus Edessa meditabunda
Order Diptera Hemiptera
Family Culicidae Pentatomidae
Size 4-5 mm 12-17 mm
Habitat Farmland Farmland
Diet Blood Feeders Sap Feeders
Regions Europe, Central Asia, North Africa Brazil, Argentina, Paraguay, Uruguay, Bolivia
Conservation Least Concern Least Concern

Common Gnat

A small brownish mosquito widespread across Europe and Central Asia that breeds in marshes and rice paddies. It is a competent vector of West Nile virus and is considered the species responsible for several West Nile virus outbreaks in Europe. It feeds readily on both birds and mammals.

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Did You Know?

This species was identified as the key West Nile virus vector in the Camargue wetlands of southern France.

Neotropical Shield Bug

A medium-sized green and brown shield-shaped stink bug common in South American agriculture. It is an important pest of soybeans and other legumes.

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Did You Know?

When disturbed, it releases aldehydes from thoracic glands that smell strongly of cilantro to repel attackers.