Dyspnoi is a suborder of harvestmen, currently comprising 43 extant genera and 356 extant species, although more species are expected to be described in the future. The eight families are currently grouped into three superfamilies: the Acropsopilionoidea, Ischyropsalidioidea, and Troguloidea.
Allograpta is a very large and diverse genus of hoverflies present throughout the world except most of the palearctic region. The adults are brightly coloured flower pollinators and most larvae have a predatory feeding mode involving soft-bodied sternorrhynchans. Certain species have diverged from this and their larvae have been found to be leaf-miners, stem-borers or pollen-feeders.
Toxomerus is a very large genus of hoverflies. They are found in many parts of North and South America. Most larvae are predators on soft bodied insects, though a few species have been shown to feed on pollen. Adults feed on the pollen of a wide range of flowers.
Ceratophya is a genus of hoverflies, with five known species. They are distinct from Microdon by the presence of an appendix on vein R4+5. Many species have erroneously been placed in this genus. Some authors place Ceratophya as a subgenus of Microdon.
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.
Ubristes is a genus of hoverflies, with four known species. All are characterized by their metatibiae, which are usually enlarged, but always with a brush of long pile along the dorsal edges. These flies are probably mimics of the stingless bees in the tribe Meliponini.
Syrphipogon is a subgenus of the hoverfly genus Microdon. There are two known species. They are very large microdontine flies of about 25 mm. They have a deeply sulcate scutellum and a facial mystax. They are mimics of the large bees of the genus Eulaema.
Surimyia is a genus of hoverflies, with three known species. They are small microdontine flies. Surimyia is the only hoverfly genus with the katatergum lacking microtrichia. In the subfamily Microdontinae, they are distinctive in the absence of pilosity on the postpronotum.
Ocyptamus is a large and diverse genus of over 200 species of hoverfly mostly found in the Neotropical region. It is likely that many of these species will be discovered to be synonyms though many others await description.
Ocyptamus fascipennis is a species of syrphid fly in the family Syrphidae.
Ocyptamus parvicornis, the scarlet hover fly, is a species in the family Syrphidae.
Ocyptamus fuscipennis is a species of syrphid fly in the family Syrphidae.
Ocyptamus antiphates is a species of syrphid fly in the family Syrphidae.
Ocyptamus lemur is a species of syrphid fly in the family Syrphidae.
Pelecinobaccha is a genus of hoverfly in the Neotropical region, formerly included in the genus Ocyptamus, which was split after researchers determined it was not monophyletic.
Pseudoscaeva is a genus of hoverfly in the Neotropical region, formerly included in the genus Ocyptamus, which was split after researchers determined it was not monophyletic.
Orphnabaccha is a genus of hoverfly in the Neotropical region, formerly included in the genus Ocyptamus, which was split after researchers determined it was not monophyletic.
Hybobathus is a genus of hoverfly in the Neotropical region, formerly included in the genus Ocyptamus, which was split after researchers determined it was not monophyletic.
