Key to the genera of Platystomatidae in Israel

1. Ventral calypter forming distinct lobe. Abdomen broad at base, narrowed towards apex. 1st flagellomere 1.3–2.7 times as long as high. Wing pattern usually reticulate, sometimes reticulate-banded............................ Platystoma Meigen

- Ventral calypter narrow, not forming distinct lobe. Abdomen spindle-shape, narrowed towards base as well as towards apex. 1st flagellomere about 4 times as long as high. Wing pattern banded......................... Rivellia Robineau-Desvoidy