Key to Chinese species of the genus Oligophlebia

1. Frons entirely yellow.................................................................... Oligophlebia ulmi

- Frons without yellow scales............................................................................. 2

2. Forewing with ETA drop-shaped; abdomen with tergites 2 ochre, tergites 4 and 5 with ochre tuft in the middle............................................................................................ Oligophlebia hibiscivora

- Forewing with ETA triangular; abdomen with tergite 2 black, tergites 4 and 5 without ochre tuft........ Oligophlebia minor