Valid Names Results

Takahashia japonica (Cockerell, 1896) (Coccidae: Takahashia)

Nomenclatural History

• Pulvinaria (Takahashia) japonica Cockerell 1896h: 20. Type data: JAPAN: Tokyo, on mulberry.. Holotype, female, by monotypy and original designation Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: Syntypes, female
• Pulvinaria (Takahashia) japonica; Cockerell 1896i: 47. Type data: JAPAN: Tokyo, on mulberry. Unknown type status, no description, by original designation Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; subsequent use Notes: Redescribed as sp. n.
• Takahashia japonica (Cockerell, 1896); Kuwana 1902: 61. change in status (level)
• Takahashia wuchangensis Tseng 1947: 21. Type data: CHINA: Wuchang County, Hubei Province, on Parthenocissus tricuspidata. . Unknown type status, female, by original designation junior synonym (discovered by Tang1991, 292). Notes: Syntypes, female. Type material lost; Tang, F.T, 1989, personal communication to Yair Ben-Dov.
• Takshashia japonica; Kwon, et al. 2005: 53. misspelling of genus name

Common Names

• string cottony scale EFSA2023c

Ecological Associates

Hosts:

Families: 17 | Genera: 25

Foes:

Families: 2 | Genera: 4

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

Remarks

• Systematics: Subfamily: Filippiinae A (Choi & Lee, 2019) Takahashia japonica can be easily distinguished from all other species of soft scale insects known in eastern Europe by its enormously long ovisac. (Gavrilov-Zimin & Volkova, 2022)
• Structure: See colour photograph in Kawai (1980, Figs. 6.46, a,b,c). Body broadly oval, up to 5 mm long in mature females, bearing unusually long curved wax ovisac, that being 3–4 times (sometimes more) as long as body. Antennae short, 8-segmented, about 250 μm long. Legs comparatively small, slightly longer than antennae, but with all segments present. (Gavrilov-Zimin & Volkova, 2022)
• Biology: T. japonica is a parthenogenetic species. In Italy it has one generation per year. Fecundity is high and the females can lay up to 5,000 eggs. The eggs are laid in a long string-like white waxy ovisac about 6–7 cm in length, hanging from tree branches and twigs in a characteristic loop. (EFSA2023c)
• Economic Importance: T. japonica has been reported to cause significant damage on Acer spp. and Morus alba L., in Croatia, some of which suffered significant defoliation and crown decline (Landeka et al., 2021). In Italy, heavy infestations of T. japonica on twigs cause dieback and necrosis of buds, which is mostly harmful to newly planted young trees. (EFSA2023c) T. japonica satisfies all the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest. (EFSA2023c)
• General Remarks: Description and illustration of adult female by De Lotto (1988), Tang (1991) and by Hodgson (1994a).

Illustrations

Citations