Valid Names Results

Chionaspis wistariae Cooley, 1897 (Diaspididae: Chionaspis)

Nomenclatural History

• Chionaspis wistariae Cooley 1897: 280-281. Type data: JAPAN: taken in San Francisco, on Wisteria, 08/07/1897, by Mr. Craw. Lectotype, female, by subsequent designation (LiuKoRh1989,116). Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: Paralectotype in MOSU (Montana State University).
• Phenacaspis wistariae (Cooley, 1897); MacGillivray 1921: 349. change of combination
• Phenacaspis fujicola Kuwana 1931a: 8-9. Type data: JAPAN: Angyo, Saitama-ken, on Wistaria chinensis var. multiguga, ?/09/1924, by Y. Tanaka. Syntypes, female, Type depository: Ibaraki-ken: Insect Taxonomy Laboratory, National Institute of Agricultural Environmental Sciences, Kannon-dai, Yatabe, Tsukuba-shi, (Kuwana), Japan; junior synonym (discovered by Takaha1952a, 8). Illustr.
• Trichomytilus wistariae (Cooley, 1897); Lindinger 1933a: 166. change of combination
• Trichomytilus fujicola (Kuwana, 1931); Lindinger 1934: 64. change of combination
• Chionaspis wistariae Cooley, 1897; Takagi 1985: 50. revived combination (previously published)
• Chionaspis vistariae Cooley, 1897; Hua 2000: 149. misspelling of species epithet

Common Names

• fujicola scale McKenz1956
• wistaria scurfy scale LiuKoRh1989

Ecological Associates

Hosts:

Families: 3 | Genera: 3

Foes:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• Gill1997: pp.75 ( Adult (F) ) [Key to California species of Chionaspis]
• Koszta1996: pp.439, 441 ( Adult (F) ) [Key to species of Chionaspis]
• LiuKoRh1989: pp.16 ( Adult (F) ) [Key to the species of Chionaspis in North America]
• Chen1983: pp.65 ( Adult (F) ) [Key to Chinese species of Phenacaspis] Key as: Phenacaspis fujicola
• Koszta1963: pp.62 ( Adult (F) ) [Key to species of Chionaspis]
• Takagi1961: pp.34 ( Adult (F) ) [Key to species of Chionaspis]
• McKenz1956: pp.30 ( Adult (F) ) [Key to species of Chionaspis]
• Takaha1956d: pp.56 ( Adult (F) ) [Key to some Japanese species of Chionaspis]
• Ferris1942: pp.49 ( ) [Key to species of Chionaspis]
• Kuwana1931a: pp.2 ( Adult (F) ) [Key to species of Phenacaspis] Key as: Phenacaspis fujicola
• Kuwana1928: pp.3 ( Adult (F) ) [Key to species of Chionaspis]
• MacGil1921: pp.349 ( ) [Key to species of Phenacaspis] Key as: Phenacaspis wistariae
• Cooley1899: pp.10 ( Adult (F) ) [Key to species of Chionaspis]

Remarks

• Systematics: Chionaspis wistariae is distinguished from other species of Chionaspis by the median lobes. It is similar to C. platani, but that species has longer median lobes and are more plainly serrate. In C. wistariae the male scale is very plainly carinated, while in C. platani it is very feebly carinated or without carinae (Cooley, 1899).
• Structure: Female scale variable in shape and size. Elongate oystershell-shaped, white, cover, 1.5-2.5 mm long. The adult females exhibit two morphological forms linked to the feeding site, differing in the shape of pygidial lobes: the leaf-infesting form and the branch-infesting form. Male scale elongated, oval, white, distinctly tricarinate, 1.0 mm long, exuviae yellowish brown (Kosztarab, 1963).
• Biology: C. wistariae develops two generations per year; a summer generation that develops on the leaves and a second generation that settles on the bark and overwinters as adult females. (Pellizzari, 2010a)
• General Remarks: Detailed description and illustration by Liu et al. (1989).

Illustrations

Citations