Common Gnat vs Longhorn Harlequin Beetle

Side-by-side species comparison

Attribute Common Gnat Longhorn Harlequin Beetle
Scientific Name Culex modestus Aristobia approximator
Order Diptera Coleoptera
Family Culicidae Cerambycidae
Size 4-5 mm 30-55 mm
Habitat Farmland Farmland
Diet Blood Feeders Wood Feeders
Regions Europe, Central Asia, North Africa Southeast Asia (Malaysia, Indonesia, Thailand, Philippines, Vietnam)
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.

Longhorn Harlequin Beetle

A large longhorn beetle with attractive pale grey elytra marked with dark bands and spots in a harlequin pattern. Antennae are notably long, banded in black and grey.

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Did You Know?

It is a significant pest of cacao plantations in Southeast Asia, with larvae tunneling through tree trunks causing branch dieback.