Microdontinae

thumb|Microdon eggeri, larva, third instar Hover flies (family Syrphidae) of the genus Microdon are unusual among the Diptera. Like other members of the subfamily, they are myrmecophiles, meaning they inhabit the nests of ants.

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The subfamily Microdontinae contains slightly more than 400 species of hoverflies (family Syrphidae) and, while diverse, these species share several characteristics by which they differ from other syrphids. The Microdontinae are myrmecophiles, meaning they live in the nests of ants. Larval Microdontinae are scavengers or predators in ant nests, and, in contrast to other syrphid larvae, have no readily apparent body segmentation. Some species also do not exhibit the typical adult flower-visiting behaviour of other hoverflies, but instead remain near their larval host colonies (some of these spe

Rhopalosyrphus is a genus of hoverflies, with nine known species. The adults flies mimic wasps, such as Zethus. The larvae are predators of ant brood. They are native to from southern United States to northern Argentina.

Afromicrodon is an African genus of hoverflies. The species of the genus Afromicrodon were previously and erroneously placed in the genus Ceratophya.

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Mixogaster is a genus of hoverflies native to North America and South America, with 21 known species. Mixogaster is distinct by lacking an appendix on vein R4+5, having a reduced and bare metasternum, an unarmed scutellum, and usually an appendix on vein M extending in cell R4+5. Larvae are found in ant nests.

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Paragodon paragoides is a small (4–5 mm) hoverfly which differs from other hoverflies by its simple male genitalia, and was accordingly considered the most primitive microdontine species. It is the sole member of the genus Paragodon, as the other known species was removed to a separate genus, Surimyia.

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Spheginobaccha is a genus of hoverflies, with 15 known species. The genus is readily separated from other microdons by the incomplete metathoracic bridge, round/oval basoflagellomere, occiput with a dorsolateral crease, and other characters. It is the only genus in the tribe Spheginobacchini.

Paramixogaster is a genus of hoverflies, with fewer than 30 known species. Paramixogaster has an appendix on vein R4+5 that is absent in Mixogaster.

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Aristosyrphus is a genus of Neotropical hoverflies.

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Paramicrodon is a genus of hoverflies, with eight known species. They differ from Microdon by their short antennae and the lack of appendices on vein R4+5.

Schizoceratomyia is a genus of hoverflies, with four known species. Larvae are found in ant nests. They are native to the Neotropics.

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Cervicorniphora alcicornis is a species of Australian hoverfly, and the only species in the genus Cervicorniphora.