Key to species of Pseudococcus Westwood

1 Discoidal pores present next to eyes......................................................... viburni (Signoret)

- Discoidal pores absent from next to eyes................................................................... 2

2 Translucent pores absent from hind coxae.......................................... longispinus (Targioni Tozzetti)

- Translucent pores present on hind coxae.................................................................... 3

3 Dorsal oral rim ducts absent................................................................. cryptus Hempel

- Dorsal oral rim ducts present............................................................ comstocki (Kuwana)