FIGURE 21 in Towards the identification of the scale insects (Hemiptera: Coccomorpha) of continental Africa: 1. Identification of the families

FIGURE 21. Diaspididae adult female morphology, from Williams & Watson (1988: 12, Fig. 3), © CABI, Wallingford, U.K. Note abdomen with posterior abdominal segments fused into a sclerotised pygidium with dorsal ducts; pygidial margin with lobes, plates and / or gland spines; 1-segmented antenna; legs absent or vestigial; and disc pores each with no more than 5 loculi. The insects usually form a detachable scale cover incorporating exuviae of previous instars unless the adult female is pupillarial.