Genus Coccus Linnaeus, 1758 Type-species. Coccus hesperidum Linnaeus, 1758. Takahashi, 1952: 11; De Lotto, 1957: 296; Hodgson, 1968: 114; Ben-Dov, 1981: 649; Avasthi & Shafee, 1991: 329; Tang, 1991: 71; Hodgson & Henderson, 2000: 195; Wang & Feng, 2012: 59; Gavrilov-Zimin, 2013: 78; Lin et al. 2013: 249; Lin et al. 2017: 571; Choi & Lee, 2018: 121; Gullan et al. 2018: 1; Łagowska & Hodgson, 2019: 373. Generic diagnosis of adult female. Body broadly oval to very elongate oval, or pyriform. Dorsum. Derm with or without sclerotized reticulations; if present, dermal areolations often becoming well developed in older females. Dorsal setae spinose, setose or conical, with pointed or bluntly rounded apices, or cylindrical or capitate, with bluntly rounded apices. Submarginal tubercles present or absent. Dorsal tubular ducts and preopercular pores present or absent. Anal plates triangular, together quadrate, each with or without a single discal seta or clustered discal setae. Margin. Marginal setae slender, straight or curved, spinose with pointed apices, or with tips bifid, frayed, fimbriate or branched. Each stigmatic cleft containing one, three or more spinose stigmatic spines. Venter. Antennae each with 3‒8 segments. Inter-antennal setae present or absent; one to three pairs of long pregenital setae present; submarginal setae present or absent. Legs well developed, tibio-tarsal articulation sometimes freely articulated, with or without a well-developed articulatory sclerosis; occasionally, tibio-tarsal articulation imperfect; claw with or without a denticle. Ventral tubular ducts present or absent.

Published as part of Cao, Tong, Watson, Gillian W., Hodgson, Chris J., Jing, Qi & Feng, Ji-Nian, 2022, The genera Coccus and Prococcus (Hemiptera: Coccomorpha: Coccidae) in China with two new combinations and descriptions of two new species, pp. 112-128 in Zootaxa 5087 (1) on page 119, DOI: 10.11646/zootaxa.5087.1.5, http://zenodo.org/record/5819774