Ferrisia dasylirii

Adult female body elongate oval, 3.14–5.30 mm long, 1.36–2.86 mm wide. Body setae slender, each 20–238 µm long, longest setae medially on head. Anal lobe cerarii each with 2 conical setae, 35–43 µm long, sometimes with additional robust setae. Enlarged tubular ducts on dorsum totalling 55–114, each duct 30–40 µm long, 5.0–7.5 µm wide, rim of duct opening sclerotised, 10–13 µm wide, surrounded by a sclerotised circular area 15–35 µm wide, often enclosing 1 or 2 oval discoidal pores and with 2–7 setae, each 22–48 µm long. Ducts distributed marginally in clusters of 2–6 on head and thorax, on margins of all abdominal segments in groups of 2–4, with 5–12 ducts on each side of abdominal segment VII, and also 2–7 medially to submarginally on head and thorax, 5–7 medially to submedially on abdominal segments. Translucent pores present on hind legs, totalling 49–70 on femur and tibia combined, but often absent on coxae. Ratio of lengths of hind tibia + tarsus to hind trochanter + femur 0.96–1.08, ratio of lengths of hind tibia to tarsus 2.40–3.03, ratio of length of hind trochanter + femur to greatest width of femur 3.64–4.36. Oral-collar tubular ducts on most of venter each 12–15 µm long, 3–4 µm wide, totalling 23–81.

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