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Gnat from Robert Hooke's Micrographia, 1665 A female black fungus gnat. A gnat (/ ˈ n æ t /) is any of many species of tiny flying insects in the dipterid suborder Nematocera, especially those in the families Mycetophilidae, Anisopodidae and Sciaridae. [1]
A small proportion of the species are serious pests of commercially important crops. Some of these serve as vectors for over 20 viruses that cause plant disease, especially the Tospoviruses. Many flower-dwelling species bring benefits as pollinators, with some predatory thrips feeding on small insects or mites. In the right conditions, such as ...
Other plants with a similar function include the hummingbird bush, pineapple sage, and bee balm. Each of these plants also conceals the scent of nearby plants, making their detection by some pest insects more difficult, as do most other mints. [citation needed]
Gnats are small, long-legged flying insects attracted to wet and damp areas, according to Direct Hit Pest Control. Some bite for blood and pass on illnesses. Some bite for blood and pass on illnesses.
Some are saprotrophs, eating decaying plant or animal matter, while others are insectivores, eating aphids, thrips, and other plant-sucking insects. [ 6 ] [ 14 ] Predatory species are beneficial to farmers and gardeners, because aphids destroy crops, and hoverfly maggots are often used in biological control .
Fairyflies are very tiny insects, like most chalcidoid wasps, mostly ranging from 0.5 to 1.0 mm (0.020 to 0.039 in) long. They include the world's smallest known insect, with a body length of only 0.139 mm (0.0055 in), and the smallest known flying insect, only 0.15 mm (0.0059 in) long. They usually have nonmetallic black, brown, or yellow bodies.