Valid Names Results

Walkeriana floriger (Walker, 1858) (Monophlebidae: Walkeriana)

Nomenclatural History

• Coccus floriger Walker 1858: 305. Type data: SRI LANKA [=CEYLON]: host plant not indicated.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name
• Walkeriana floriger (Walker, 1858); Signoret 1876a: 391. change of combination
• Coccus laniger Kirby 1891: 175. Type data: SRI LANKA [=CEYLON]: Pundaluoya; collected E.E. Green.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; junior synonym (discovered by Cocker1899a, 391).
• Walkeriana florigera (Walker, 1858); Lindinger 1932f: 198. emendation that is unjustified
• Walkeriana floriger (Walker, 1858); Williams, D.J. 2017: 130. emendation that is justified

Common Names

Ecological Associates

Hosts:

Families: 2 | Genera: 2

Geographic Distribution

Keys

• TangHa1995: pp.199, 619 ( Adult (F) ) [Asia]

Remarks

• Systematics: Walkeriana florigera (Walker, 1858) was described originally as Coccus floriger Walker (Walker, 1858: 305) and later transferred to Walkeriana Signoret by Signoret (1876: 360) as Walkeriana floriger (Walker). Lindinger (1932: 198) and Williams & Ben-Dov (2009: 22) amended the name to Walkeriana florigera (Walker). These changes were unjustified because, according to Article 31.2.2 in the International Code of Zoological Nomenclature (International Commission on Zoological Nomenclature 1999) Latin names ending in –ger, which may be either adjectives or nouns, should be treated as nouns in apposition when the original author has given no such indication; this was the case in the description of Coccus floriger. The combination Walkeriana floriger is, therefore, correct.
• Structure: The general appearance (in colour illustration) of the adult female is given by Green (1922). Fully grown female, with its covering of tomentum, may attain a length of 20-24 mm, with a breadth of 18-20 mm. Adult female broadly oval, covered above with longish, dense, plush-like tomentum which is concentrated - on the medio-longitudinal area - into close, forwardly directed tufts, with some shorter and broader transverse tufts on abdomen. The tomentum varies in colour according to the age and exposure, and may be whitish, yellow, olivaceous, grey or brown (Green, 1922).
• Biology: Green (1937) indicated that this species is believed to have a life cycle extending over several years. It was recorded only at altitude of about 4000 feet (Green, 1937).
• General Remarks: Description and illustration of nymph and adult female by Signoret (1876a), Green (1922) and by Morrison (1928).

Illustrations

Citations