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Agromyzidae, Agromyzinae, Agromyza spec. The white halteres exclude Hexomyza with black halteres. Well to be seen, the straight stridulation file along the lateral edge of syntergite 1+2; it is present in males and females of the genus Agromyza only (see von Tschirnhaus, M. 1972, Beiträge zur Entomologie 21 (1971): 571-579; For ident. of species male genitalia are necessary.
https://www.contributions-to-entomology.org/article/view/990