Key to Phenacoccus species from the western Palaearctic Region lacking ventral multilocular pores

1 Anal lobe cerarii each containing 7 or 8 setae.............................................................. 2

- Anal lobe cerarii each containing 2 or 3 setae............................................................... 3

2 Quinquelocular pores sparsely present on thorax and anterior abdominal segments. Antennae each 8 segmented............................................................................................ memorabilis Borchsenius

- Quinquelocular pores absent. Antennae each 9 segmented................................. bromi Moghaddam sp. n.

3 Tubular ducts sparsely present along ventral margin, occasionally also on dorsum................... larvalis Borchsenius

- Tubular ducts absent...................................................................... giuliae Pellizzari