Archaeterphis

Superregnum: Eukaryota
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: Asilomorpha
Superfamilia: Nemestrinoidea

Familia: Acroceridae
Subfamilia: Philopotinae
Genus: †Archaeterphis
Species: A. hennigi
Name

Archaeterphis Hauser & Winterton, 2007: 153

Type species: Archaeterphis hennigi Hauser & Winterton, 2007, by monotypy.
References

Gillung, J.P. & Winterton, S.L. 2011. New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera. ZooKeys 127: 15–27. DOI: 10.3897/zookeys.127.1824 Open access. Reference page.
Hauser, M. & Winterton, S.L. 2007. A new fossil genus of small-headed flies (Diptera: Acroceridae: Philopotinae) from Baltic amber. Annals of the Entomological Society of America 100(2): 152–156. DOI: 10.1603/0013-8746(2007)100[152:ANFGOS]2.0.CO;2 Paywall. PDF. Reference page.

Archaeterphis is an extinct genus of small-headed flies in the family Acroceridae. It is known from Baltic amber from the Eocene, though the locality is unknown (possibly Russia).[2] It contains only one species, Archaeterphis hennigi.[1]

The generic name is a combination of the Greek word Arche (beginning) and Terphis, referring to the possible close relationship of Archaeterphis with the extant genera Africaterphis and Terphis. The species is named in honor of Willi Hennig.[1]
References

Hauser, Martin; Winterton, Shaun L. (2007). "A New Fossil Genus: of Small-Headed Flies (Diptera: Acroceridae: Philopotinae) from Baltic Amber". Annals of the Entomological Society of America. 100 (2): 152–156. doi:10.1603/0013-8746(2007)100[152:ANFGOS]2.0.CO;2.
Gillung, Jessica P.; Winterton, Shaun L. (2017). "A review of fossil spider flies (Diptera: Acroceridae) with descriptions of new genera and species from Baltic Amber". Journal of Systematic Palaeontology. 16 (4): 325–350. doi:10.1080/14772019.2017.1289566. S2CID 90493326.