Belongs within: Dolichopodidae.
The Medeterinae are a group of dolichopodid flies characterised by having the rear part of the mesonotum distinctly flattened (Bickel 2013).
Characters (from Bickel 2013): Antennal scape bare; dorsal postcranium usually distinctly concave; posterior mesonotum distinctly flattened and slightly depressed, from one-third to one-half of surface between dorsocentral setae, and distinct from curved anterior mesonotum; vein M2 absent; femur II and III bare of major anterior preapical setae; male genitalic capsule ovate to pyriform, on peduncle formed by exerted haired segment 7.
<==MedeterinaeB09 |--Systenus albimanusB09, RV81 |--Corindia Bickel 1986B13 | |--C. capricornis Bickel 1986B13 | |--C. collessi Bickel 1986B13 | `--C. gascoynesis Bickel 2013B13 |--Thrypticus Gerstäcker 1864B13 | |--T. australis Bickel 1986B13 | |--T. fortescuensis Bickel 1986B13 | |--T. violaceousB09 | `--T. willistoniB09 `--Medetera Fischer von Waldheim 1819B13 |--M. aberransB09 |--M. aldrichiiRV81 |--M. australianaB13 |--M. bistriataB09 |--M. californiensisBM76 `--M. junensis Bickel 2013B13
*Type species of generic name indicated
References
[B09] Bickel, D. J. 2009. Dolichopodidae (long-legged 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. 1 pp. 671–694. NRC Research Press: Ottawa.
[B13] Bickel, D. J. 2013. The family Dolichopodidae (Diptera) of the Pilbara region, Western Australia in its Australasian biogeographic context, with the description of 19 new species. Records of the Western Australian Museum Supplement 83: 291–348.
[BM76] Bohart, R. M., & A. S. Menke. 1976. Sphecid Wasps of the World. University of California Press: Berkeley.
[RV81] Robinson, H., & J. R. Vockeroth. 1981. Dolichopodidae. 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. 625–639. Research Branch, Agriculture Canada.