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Chloropidae, Oscinellinae: Trachysiphonella spec. This specimen has very deep gena(e) (jowl(s)). Genae of T. ruficeps and R. scutellata normally are narrower (but variable in both species). The dark spots on the pleuron are not species-specific. All species are very variable concerning their body colour. T. scutellata normally has two lateral setae on each side of the scutellum, T. ruficeps only one. On average T. ruficeps is the smaller species. Without studying the male genitalia an identification is not trustable. On Sardinia I collected also T. pori which may also occur in France and which can easily be identified by its much narrower and longer male cerci. Further species in Saudi Arabia, Asia, South Africa ...