(Savaris, Marcoandre, Marinoni, Luciane & Mathis, Wayne N. 2016)
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- Psilopa Savaris, Marcoandre, 2016, Zootaxa 4083: 85-85.
Diagnosis. The tribe Psilopini is distinguished from Discomyzini and other tribes of Ephydridae by the following combination of characters: Small to moderately small shore flies, body length 1.50‒2.50 mm; usually mostly black, shiny, investiture of microtomentum usually sparse, especially on frons and mesonotum. Head: Ocellar seta aligned behind anterior ocellus, sometimes only slightly so; reclinate fronto-orbital seta inserted behind or weakly developed, lateroclinate (sometimes well developed, divergent, and slightly proclinate), usually much less than 1/2 length of ocellar seta; arista with 7‒14 dorsal rays; conformation of face variable, usually mostly smooth, sometimes shallowly pitted or rugose; gena, including midportion, setulose, its posterior margin rounded. Thorax: Mesonotum generally sparsely microtomentose to bare, subshiny or shiny, although variable; supra-alar seta usually lacking, if present, well developed, subequal to postalar seta; arrangement of acrostichal setulae variable; prescutellar acrostichal setae usually present, widely set apart and aligned anterior of posteriormost dorsocentral setae; scutellum usually sparsely setulose; anterior and posterior notopleural setae inserted at about the same level.
Discussion. The tribe Psilopini is closely related to Discomyzini Acloque and these two tribes constitute the subfamily Discomyzinae Acloque (Mathis & Zatwarnicki 1995). There are now six South American genera in Psilopini that can be distinguished by the following key.
- Savaris, Marcoandre; Marinoni, Luciane; Mathis, Wayne N.; 2016: Revision of the shore-fly genus Peltopsilopa Hendel (Diptera: Ephydridae), Zootaxa 4083: 85-85. doi