Valid Names Results

Chryseococcus arecae (Maskell, 1890) (Pseudococcidae: Chryseococcus)

Nomenclatural History

• Dactylopius arecae Maskell 1890: 150. Type data: NEW ZEALAND: Wellington, on roots of Areca [= Rhopalostylis] sapida. Syntypes, female, accepted valid name Notes: Type material probably lost, see Cox (1987). Illustr.
• Pseudococcus arecae (Maskell, 1890); Fernald 1903b: 97. change of combination
• Pseudococcus oamaruensis Brittin 1915: 153. Type data: NEW ZEALAND: Oamaru, on Aquilegia sp.. Lectotype, female, by subsequent designation (WilliaBo1973,231). Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; junior synonym (discovered by WilliaBo1973, 230).
• Ripersia occulta Brittin 1915: 155. Type data: NEW ZEALAND: Oamaru, on roots of grass. Lectotype, female, by subsequent designation (WilliaBo1973,231). Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; junior synonym (discovered by WilliaBo1973, 231).
• Trionymus oamaruensis (Brittin, 1915); Brittin 1938: 337. change of combination
• Trionymus occulta (Brittin, 1915); Brittin 1938: 334. change of combination
• Trionymus dendrobii Brittin 1938: 335. Type data: NEW ZEALAND: Westport, on Dendrobium sp.. Lectotype, female, by subsequent designation (WilliaBo1973,231). Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; junior synonym (discovered by WilliaBo1973, 230).
• Trionymus raouliae Brittin 1938: 334. Type data: NEW ZEALAND: Maruia, on Raoulia sp.. Lectotype, female, by subsequent designation (WilliaBo1973,231). Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; junior synonym (discovered by WilliaBo1973, 230).
• Chorizococcus arecae (Maskell, 1890); Williams & de Boer 1973: 230. change of combination
• Chryseococcus arecae (Maskell, 1890); Cox 1987: 36. change of combination

Common Names

• golden root mealybug MalumpStWi2014

Ecological Associates

Hosts:

Families: 14 | Genera: 19

Geographic Distribution

Keys

• Cox1987: pp.36 ( Adult (F) ) [New Zealand]
• Willia1985: pp.75 ( Adult (F) ) [Australia]
• Brooke1976: pp.421 ( Adult (F) ) [Australia]

Remarks

• Systematics: Slide-mounted adult females of the genus Chryseococcus are easily separated morphologically from all other mealybug genera present in Britain (and Europe) by the following suite of diagnostic characters: six or seven-segmented antennae; elongate and slender tarsal claws; long, stout dorsal setae; and oral rim-tubular ducts with associated simple pores (Malumphy, et al., 2014)
• Structure: In life, the adult female mealybugs are broadly-oval, dark reddish purple, with a dusting of somewhat granular, bright golden wax; their body length is up to 3.1 mm long and breadth 2.7 mm breadth. They excrete very long, fine, curved, blue-iridescent wax filaments which are readily broken and lost. These wax filaments are excreted from oral rim ducts and are usually more numerous and conspicuous on the final-nymph stage than the adult, as the former possesses a greater number of oral rim ducts. (Malumphy, et al., 2014)
• Biology: Occurring on the roots of its host plants and in soil, litter, and under moss.
• Economic Importance: There are no published details of Chryseococcus arecae causing economic damage and it is not an economic pest in New Zealand. It has, however, been recorded damaging a range of ornamental plants in Rosetta, Tasmania, and large populations may reduce host vigour and lower the value of ornamental plants. (Malumphy, et al., 2014)
• General Remarks: Good description and illustration of the adult female given by Williams & de Boer (1973), Cox (1987) and by Williams (1985).

Illustrations

Citations