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Agromyzidae, female; end of subcosta similar but not identical with Agromyzinae: end of vein R1 is not thickened. Some Phytobia Lioy, 1864 spp. (subfamily Phytomyzinae) have a similar subcosta. Stridulation file of Agromyza spp. along side edge of syntergites 1+2 is not to be seen in the photo. It seems to be absent. In this case it is a Phytobia species. Two posterolateral setae on the mid tibia, a pair of distinct prescutellar bristles and robust body bristles also speak for Phytobia. Phytobia flies are rarely caught as predominantly they live in the canopy of trees. Worldwide larvae of all Phytobia species (117 valid spp.) of which the host tree is known develop in the youngest xylem (close to the cambium) of shrubs and trees. Their brown feeding tracks (pith flecks, medullary spots) are figured in the Manual of Afrotropical Diptera (2021), vol. 3: p. 86. From oak (Quercus) timber only the European Phytobia mallochi (Hendel, 1924) is known, a rarely collected species first reared by Michel Martinez (France).