Hyadina

Key to species of Hyadina from the Oriental Region

1. Wing with five faint white spots at least....................................................................................................................... 2

- Wing with three faint white spots at most.................................................................................................................... 3

2. Wing with five faint white spots; femora and tibiae yellow ............................................. H. quinquepunctata sp. nov.

- Wing with nine faint white spots; legs reddish brown .................................................................... H. pulchella Miyagi

3. Wing with two faint white spots at most...................................................................................................................... 4

- Wing with three faint white spots................................................................................................................................. 5

4. Wing with two faint white spots on anterior and posterior sides of posterior crossvein .................. H. sauteri Cresson

- Wing without faint white spots ..................................................................................................... H. hivaoae (Malloch)

5. Faint white spots on anterior and posterior sides of posterior crossvein and below posterior crossvein; male cercus thickened basally and slender apically .................................................................................... H. longicaudata sp. nov.

- Faint white spots on anterior and posterior sides of posterior crossvein and above anterior crossvein; male cercus short and thickened ................................................................................................................... H. jinpingensis sp. nov.