Belongs within: Tachinidae.
Contains: Dufouriini, Dexiini.
The Dexiinae are a group of tachinid flies united by the presence of a hinge in the phallus together with close association of the postgonites with the base of the phallus. Females possess a uterus and deposit eggs containing a developed embryo (Wood & Zumbado 2010). The majority of species parasitise Lepidoptera though certain subgroups attack Coleoptera or Heteroptera. Parasitoids of adult Heteroptera form a clade including the Epigrimyiini and Euthera. The host of the sister taxon of this clade, Litophasia, is as yet unknown (Stireman et al. 2019). Litophasia are exceptional in the absence of meral bristles (Wood 1987).
<==Dexiinae [Dufouriinae, Proseninae, Voriini, Wagneriini]WZ10
|--+--LitophasiaSC19
| `--+--EpigrimyiiniSC19
| | |--EpigrimyiaSC19
| | | |--E. illinoensisSC19
| | | `--E. politaW87
| | `--Beskia aelopsSC19
| `--Euthera [Eutherini]SC19
| |--E. setifaciesSC19
| `--E. tentatrixWZ10
`--+--+--+--Microsoma exiguaSC19
| | `--Freraea [Freraeini]SC19
| | `--F. montanaW87
| `--+--Xanthobasis angustifronsSC19
| `--Eutrixa exilisSC19
`--+--+--Chaetonopsis spinosaSC19
| `--StominaSC19
`--+--+--LeptomacquartiaSC19
| `--+--Telothyria [Telothyriini]SC19
| | `--T. thecata [=Leskiopsis thecata]WZ10
| `--EriothrixSC19
| |--E. monticolaSC19
| `--E. penitalisW87
`--+--DufouriiniSC19
`--+--Phyllomya [Phyllomyina, Phyllomyini]SC19
| |--P. volvulusSC19
| `--P. washingtonianaW87
`--+--+--+--Periscepsia Gistel 1848SC19, F92 (see below for synonymy)
| | | |--*P. carbonaria (Panzer 1798) (see below for synonymy)F92
| | | |--P. helymusWZ10
| | | `--P. stylata [=Petinarctia stylata]W87
| | `--+--MyiotrixiniSC19
| | | |--MyiotrixaSC19
| | | `--ObscuromyiaSC19
| | `--Campylocheta [Campylochetini]SC19
| | |--C. plathypenaeSC19
| | `--C. semiothisaeWZ10
| `--+--+--MuscopteryxSC19
| | | |--M. costalis [=Websteriana costalis]W87
| | | |--M. evexus [=Tarassophorus evexus]W87
| | | `--M. hilarisSC19
| | `--Metopomuscopteryx tibialisSC19
| `--+--TrafoiaSC19
| | |--T. arcticaWZ10 [=Tenuirostra arcticaW87]
| | `--T. rufipalpisSC19
| `--+--Micronychiops aurescensSC19
| `--+--Uramya [Uramyini]SC19
| | |--U. aldrichiW87
| | |--U. halisidotaeT81
| | `--U. pristisSC19
| `--Thelairaporia brasiliensisSC19
`--DexiiniSC19
Dexiinae incertae sedis:
TrixaA71
Hystricodexia echinataWZ10
Voria Robineau-Desvoidy 1830F92
`--*V. ruralis (Fallén 1810) (see below for synonymy)F92
Hyleorus Aldrich 1926 [incl. Neuroplagia Townsend 1933, Steiniomyia Townsend 1932]F92
`--*H. elatus (Meigen 1838) [incl. Tachina setosa Brischke 1885]F92
Kirbya [incl. Coleophasia, Hesperophasia, Hesperophasiopsis; Hesperophasiini]W87
|--K. aldrichiW87
|--K. pacificaWZ10
`--K. setosaWZ10
WagneriaW87
|--W. pacataW87
`--W. vernataW87
Peteina Meigen 1838F92
|--*P. erinaceus Fabricius 1794F92
`--P. hyperdiscalis Aldrich 1926F92
RhynchodexiaCM70
ThelairiniF92
|--Thelaira nigripesP93
`--Halydaia Egger 1856 [incl. Anaperistommyia Townsend 1926, Macropia Malloch 1930]F92
|--*H. aurea Egger 1856F92
`--H. luteicornis Walker 1861 [incl. Anaperistommyia optica Townsend 1926]F92
*Argyromima mirabilisWZ10, SC19, WZ10
Periscepsia Gistel 1848SC19, F92 [incl. Phorichaeta Rondani 1861F92, Scopolia Robineau-Desvoidy 1830 nec Forster & Forster 1776 (ICBN) non Jaquin 1764 (ICBN)F92]
*Periscepsia carbonaria (Panzer 1798) [incl. Phorichaeta fuliginaria Rondani 1861, Wagneria nigrans Meigen 1826]F92
*Voria ruralis (Fallén 1810) [incl. V. ciliata d’Aguilar 1957, V. edentata Baranov 1932, Tachina spinicosta Palm 1876]F92
*Type species of generic name indicated
References
[A71] Askew, R. R. 1971. Parasitic Insects. Heinemann Educational Books: London.
[CM70] Colless, D. H., & D. K. McAlpine. 1970. Diptera (flies). In: CSIRO. The Insects of Australia: A textbook for students and research workers pp. 656–740. Melbourne University Press.
[F92] Fan Z. 1992. Key to the Common Flies of China 2nd ed. Science Press: Beijing.
[P93] Pittaway, A. R. 1993. The Hawkmoths of the Western Palaearctic. Harley Books: Colchester.
[SC19] Stireman, J. O., III, P. Cerretti, J. E. O’Hara, J. D. Blaschke & J. K. Moulton. 2019. Molecular phylogeny and evolution of world Tachinidae (Diptera). Molecular Phylogenetics and Evolution 139: 106358.
[T81] Teskey, H. J. 1981. Key to families—larvae. In: McAlpine, J. F., B. V. Peterson, G. E. Shewell, H. J. Teskey, J. R. Vockeroth & D. S. Wood (eds) Manual of Nearctic Diptera vol. 1 pp. 125–147. Research Branch, Agriculture Canada.
[W87] Wood, D. M. 1987. Tachinidae. In: McAlpine, J. F. (ed.) Manual of Nearctic Diptera vol. 2 pp. 1193–1269. Research Branch, Agriculture Canada.
[WZ10] Wood, D. M., & M. A. Zumbado. 2010. Tachinidae (tachinid flies, parasitic flies). In: Brown, B. V., A. Borkent, J. M. Cumming, D. M. Wood, N. E. Woodley & M. A. Zumbado (eds) Manual of Central American Diptera vol. 2 pp. 1343–1417. NRC Research Press: Ottawa.