Common Gnat vs Australian Hoverfly

Side-by-side species comparison

Attribute Common Gnat Australian Hoverfly
Scientific Name Culex modestus Simosyrphus grandicornis
Order Diptera Diptera
Family Culicidae Syrphidae
Size 4-5 mm 8-11 mm
Habitat Farmland Farmland
Diet Blood Feeders Predators
Regions Europe, Central Asia, North Africa Australia, New Zealand, Southeast Asia
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.

Australian Hoverfly

A common Australian hoverfly with orange-yellow markings on a dark abdomen. It is an important pollinator and aphid predator in Australian agriculture.

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Did You Know?

It is the most commonly encountered hoverfly species across mainland Australia.