Valid Names Results

Greenisca placida (Green, 1921) (Eriococcidae: Greenisca)

Nomenclatural History

• Eriococcus placidus Green 1921: 148-149. Type data: ENGLAND: Kent, Thurnham, on Festuca sp., 08/09/1920. Lectotype, female, by subsequent designation (Willia1985h,376-378). Type depository: London: The Natural History Museum, England, UK; accepted valid name Notes: In addition to the lectotype there are three adult female paralectotypes mounted on the same slide in the BMNH (Williams, 1985h). Illustr.
• Nidularia placida (Green, 1921); Lindinger 1933a: 116. change of combination requiring emendation of specific epithet for agreement in gender
• Greenisca placida (Green, 1921); Danzig 1959: 446. change of combination
• Acanthococcus placidus (Green, 1921); Miller & Gimpel 1996: 603. change of combination
• Greenisca placida (Green, 1921); Pellizzari & Kozár 2011: 63,66. revived combination (previously published)

Common Names

• smooth felt scale KosztaKo1988F

Ecological Associates

Hosts:

Families: 1 | Genera: 4

Foes:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• KozarKaKo2013: pp.280 ( Adult (F) ) [Key to species of Greenisca]
• PellizKo2011: pp.60 ( ) [Key to adult female Greenisca]
• TangHa1995: pp.505, 651 ( Adult (F) ) [Greenisca species]
• Willia1985h: pp.357 ( Adult (F) ) [British species of Eriococcus] Key as: Eriococcus placidus
• Danzig1971d: pp.823 ( Adult (F) ) [Key to species of family Eriococcidae]
• BorchsDa1966: pp.43 ( Adult (F) ) [Greenisca species of the USSR]
• Danzig1964: pp.634 ( Adult (F) ) [Greenisca species of the USSR]

Remarks

• Systematics: Slide-mounted adult female with: enlarged setae elongate, conical, sides slightly concave, apices slightly rounded, setae restricted to anal lobes and head, other dorsal setae inconspicuous; anal lobes with 2 enlarged setae; multilocular pores present on dorsum; microtubular ducts short, with 2 sclerotized areas (Williams, 1985h).
• Structure: Adult female is elongate oval, not nodulose. Ovisac is large and conspicuous, strongly convex, greyish ochreous in color. The outer covering is loose and wooly, inner parts are unusually tough (Green, 1921).
• Biology: Found on the upper surface of the leaves of grasses. (Kozár, et al., 2013)
• General Remarks: Description and illustration by Green (1921). Subsequent and more detailed description, illustration and type data in Williams (1985h).

Illustrations

Citations