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Cecidomyiidae
Family of flies / From Wikipedia, the free encyclopedia
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Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only 2–3 mm (0.079–0.118 in) in length; many are less than 1 mm (0.039 in) long. They are characterised by hairy wings, unusual in the order Diptera, and have long antennae. Some Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first.[4][5] In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa.[5]
Cecidomyiidae | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Diptera |
Suborder: | Nematocera |
Infraorder: | Bibionomorpha |
Superfamily: | Sciaroidea |
Family: | Cecidomyiidae Newman, 1835 |
Subfamilies | |
Synonyms | |
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More than 6,650 species and 830 genera are described worldwide, though this is certainly an underestimate of the actual diversity of this family.[6] A DNA metabarcoding study published in 2016 estimated the fauna of Canada alone to be in excess of 16,000 species, hinting at a staggering global count of over 1 million cecidomyiid species that have yet to be described, which would make it the most speciose single family in the entire animal kingdom.[7] A second similar metabarcoding study performed in Costa Rica also found Cecidomyiidae to be the most diverse family of flies, supporting this assertion.[8] A third metabarcoding study in 2023 concluded that Cecidomyiidae are the single most diverse family collected from malaise traps all around the world and are a dominant component of insect diversity, comprising about 20% of all species collected.[9]
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