Psilopa polita, copyright Christophe Quintin.

Belongs within: Ephydroidea.

The Discomyzinae are a group of shore flies with pectinate aristae and large prescutellar acrostichal bristles. They are divided between the Psilopini, in which the face is generally smooth and vein R4+5 is dorsally bare, and Discomyzini, in which the face may be coarsely sculpted and vein R4+5 generally bear two to four setulae dorsally near the base (Mathis 2010).

Characters (from Mathis 2010): Arista pectinate; reclinate fronto-orbital seta usually inserted behind larger proclinate fronto-orbital seta; median facial area and lower facial margin without setae; facial setae inserted in more or less vertical series, parallel with parafacial setae; prescutellar acrostichal setae large (subequal to posterior dorsocentral seta), inserted widely apart (distance between them subequal to that between either prescutellar and the posterior dorsocentral seta on the same side), usually in front of intra-alar seta.

<==Discomyzinae [Psilopinae]M10
| i. s.: Platygymnopa helicisWMV87
| Trimerinoides adfinisWMV87
| Trimerina madizansWMV87
| Pelignus salinusWMV87
| NesopsilopaWMV87
| Diclasiopa lacteipennisWMV87
| Hecamedoides glaucellusWMV87
| Asmeringa lindsleyiWMV87
| Pelignellus subnudusWMV87
| |--DiscomyzaM10
| |--Clasiopella uncinataM10
| |--MimapsilopaM10
| | |--M. cressoniM10
| | `--M. metatarsataM10
| |--Helaeomyia petroleiM10, WMV87
| |--Paratissa semiluteaM10
| |--GuttipsilopaM10
| `--RhysophoraM10
| |--R. ardeocerasM10
| |--R. griseolaM10
| `--R. robustaM10
|--Cressonomyia aciculataM10
|--Ceropsilopa coquillettiM10
|--Clanoneurum americanumM10, WMV87
|--Leptopsilopa varipesM10
|--P. flavidaM10
|--P. girschneriM10
|--P. metallicaM83
|--P. petroleiWB37
|--P. politaWT11
`--P. pulchripesM10

*Type species of generic name indicated


[M83] Martin, N. A. 1983. Miscellaneous observations on a pasture fauna: an annotated species list. DSIR Entomology Division Report 3: 1–98.

[M10] Mathis, W. N. 2010. Ephydridae (shore 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. 1211–1233. NRC Research Press: Ottawa.

[WB37] Walton, W. R., & F. C. Bishopp. 1937. Dr. L. O. Howard and the Entomological Society of Washington. Proceedings of the Entomological Society of Washington 39 (6): 121–132.

[WT11] Wiegmann, B. M., M. D. Trautwein, I. S. Winkler, N. B. Barr, J.-W. Kim, C. Lambkin, M. A. Bertone, B. K. Cassel, K. M. Bayless, A. M. Heimberg, B. M. Wheeler, K. J. Peterson, T. Pape, B. J. Sinclair, J. H. Skevington, V. Blagoderov, J. Caravas, S. N. Kutty, U. Schmidt-Ott, G. E. Kampmeier, F. C. Thompson, D. A. Grimaldi, A. T. Beckenbach, G. W. Courtney, M. Friedrich, R. Meier & D. K. Yeates. 2011. Episodic radiations in the fly tree of life. Proceedings of the National Academy of Sciences of the USA 108 (14): 5690–5695.

[WMV87] Wirth, W. W., W. N. Mathis & J. R. Vockeroth. 1987. Ephydridae. In: McAlpine, J. F. (ed.) Manual of Nearctic Diptera vol. 2 pp. 1027–1047. Research Branch, Agriculture Canada.

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