Valid Names Results

Rolaspis lounsburyi (Cooley, 1898) (Diaspididae: Rolaspis)

Nomenclatural History

• Chionaspis lounsburyi Cooley 1898: 87-88. Type data: SOUTH AFRICA: Cape Colony, Ceres, on unidentified host, by C.P. Lounsbury. Unknown type status, unknown, accepted valid name
• Phenacaspis lounsburyi (Cooley, 1898); Fernald 1903b: 238. change of combination
• Dinaspis lounsburyi (Cooley, 1898); Malenotti 1916: 193. change of combination
• Chionaspis (Phenacaspis) lounsburyi Cooley, 1898; Brain 1920: 99. change of combination
• Chionaspis chaetachmae imbricata Hall 1929a: 364-365. Type data: ZIMBABWE: Umvukwes, Mtoroshanga Pass, on undetermined tree, 19/07/1928. Holotype, female, Type depository: London: The Natural History Museum, England, UK; junior synonym (discovered by Muntin1969, 141).
• Chionaspis braini Lindinger 1931a: 43. replacement name that is unjustified Replacement name for Chionaspis lounsburyi Cooley 1898 Notes: Lindinger (1931a) properly proposed the replacement name Chionaspis braini for Chionaspis lounsburyi (=Rolaspis) Cooley 1898. However, it would appear that no other author treated this name except as a junior synonym of R. lounsburyi. According to the ICZN, Fourth Edition, Article 59.3 "a junior secondary homonym replaced before 1961 is permanently invalid unless the substitute name is not in use and the relevant taxa are no longer considered congeneric, in which case the junior homonym is not to be rejected on grounds of that replacement." Therefore, we retain lounsburyi as the senior name and braini as a junior synonym.
• Trichomytilus lounsburyi (Cooley, 1898); Lindinger 1933: 165. change of combination
• Rolaspis lounsburyi (Cooley, 1898); Hall 1946a: 535. change of combination
• Rolaspis spiculata Hall 1946a: 532, 534, 552. Type depository: London: The Natural History Museum, England, UK; replacement name that is a synonym (discovered by Muntin1969, 141). Replacement name for Chionaspis chaetachmae var. imbricata Hall Notes: Hall (1946a) raised Chionaspis chaetachmae imbricata to specific rank which created a junior secondary homonym of Chionaspis imbricata Brain 1920. He never used the actual combination Chionaspis imbricata Hall, instead proposing the replacement name and new generic assignment of Rolaspis spiculata.
• Rolaspis lounsbury (Cooley, 1898); Ferris 1956: 74. misspelling of species epithet

Common Names

Ecological Associates

Hosts:

Families: 11 | Genera: 15

Foes:

Families: 2 | Genera: 2

Geographic Distribution

Keys

• Muntin1969: pp.141 ( Adult (F) ) [Key to species of Rolaspis]
• Hall1946a: pp.534 ( ) [Key to species of Rolaspis]
• Hall1946a: pp.535 ( ) [Key to species of Rolaspis]
• MacGil1921: pp.349 ( Adult (F) ) [Key to species of Phenacaspis] Key as: Phenacaspis lounsburyi

Remarks

• Systematics: Rolaspis lounsburyi can be distinguished by the characteristic appearance of its scales, particularly those of the female (Cooley, 1898).
• Structure: Female scale about 3.0 mm long, white, glossy and pearly, sides almost parallel when at the margin of leaf, but usually broadened behind the middle when on the blade; evenly rounded behind, often with faint transverse ridges. Ventral scale absent or represented only by the incurved margins of the dorsal scale and an extremely delicate layer which remains on the leaf. Exuviae orange-yellow; 1st exuviae paler, 2nd covered by a pearly white layer of secretion. Male scale about 1.0 mm long, similar to that of female, but smaller, non-carinated. Adult female elongate, colorless, hyaline, except for mouthparts and lobes which are faintly yellow (Brain, 1920).
• General Remarks: Detailed description and illustration by Munting (1965b).

Illustrations

Citations