Key to separate adult females of Coccus from Prococcus

1(0) Body elongate with tapering to narrow apices. Legs shorter than antennae, with reduced segmentation (tibio-tarsal articulation usually missing). Antenna 2–5 segmented. Anal plates each with a discal or subdiscal seta. Preopercular pores present.................................................................................................. Prococcus

- Body usually subcircular to elongate-oval, with apices rarely narrow. Legs usually as long as antennae, with segmentation fully developed, with or without a tibio-tarsal articulation. Antenna 3–8 segmented. Anal plates each with or without a discal or subdiscal seta. Preopercular pores present or absent..................................................... Coccus