Tabanomorpha

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Panorpida
Cladus: Antliophora
Ordo: Diptera
Subordo: Brachycera
Infraordo: Tabanomorpha
Familiae (7 + 3†): Athericidae - Austroleptidae - Bolbomyiidae - Oreoleptidae - Pelecorhynchidae - Rhagionidae - Tabanidae - †Alinkidae - †Archocyrtidae - †Uranorhagionidae

References

Kerr, P.H. 2010: Phylogeny and classification of Rhagionidae, with implications for Tabanomorpha (Diptera: Brachycera). Zootaxa, 2592: 1–133. Preview
Wiegmann, B.M. et al. 2000: Monophyly and relationships of the Tabanomorpha (Diptera: Brachycera) based on 28S ribosomal gene sequences. Annals of the Entomological Society of America, 93(5): 1031–1038. DOI: 10.1603/0013-8746(2000)093[1031:MAROTT]2.0.CO;2 PDF
Zhang, K.; Yang, D.; Ren, D.; Shih, C. 2010: An evolutional special case in the lower Orthorrhapha: some attractive fossil flies from the Middle Jurassic of China (Insecta: Diptera: Brachycera). Zoological journal of the Linnean Society, 158(3): 563–572. DOI: 10.1111/j.1096-3642.2009.00552.x PDF

Additional references

Klassa, B. & Santos, C.M.D. 2015. Areas of endemism in the Neotropical region based on the geographical distribution of Tabanomorpha (Diptera: Brachycera). Zootaxa 4058(4): 519–534. DOI: 10.11646/zootaxa.4058.4.4. Preview (PDF) Reference page.
Klassa, B. & Santos, C.M.D. 2018. Primary hypotheses of global areas of endemism based on the distribution of Tabanomorpha (Diptera, Brachycera). Zootaxa 4399(3): 423–433. DOI: 10.11646/zootaxa.4399.3.11 Reference page.

Vernacular names
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The Brachyceran infraorder Tabanomorpha is a small group that consists primarily of two large families, the Tabanidae (horse and deer flies) and Rhagionidae (snipe flies), and an assortment of very small affiliated families, most of which have been (or could be, or sometimes are) included within the Rhagionidae. The Tabanomorpha is one of the two Brachyceran groups outside the Hippoboscoidea that contain blood-feeding (hematophagous) species, though they are not important disease vectors.

The larvae of tabanomorphs are primarily found in aquatic or semi-aquatic habitats, and are predatory. They often have "warts" or other body projections that may resemble the prolegs of caterpillars.

Classification

The infraorder Vermileonomorpha is often included within the Tabanomorpha, though the most recent classifications place them as its sister taxon. There are also some classifications that place the Nemestrinoidea within the Tabanomorpha, though this is not widely accepted. There are two superfamily-level lineages currently recognized within Tabanomorpha; the Tabanoidea and the Rhagionoidea (the latter comprising Austroleptidae, Bolbomyiidae, and Rhagionidae).[1]
References

Kerr, P.H. 2010: Phylogeny and classification of Rhagionidae, with implications for Tabanomorpha (Diptera: Brachycera). Zootaxa, 2592: 1–133.