Valid Names Results

Triaspidis bicornis (Green & Lidgett in Green, 1900) (Diaspididae: Triaspidis)

Nomenclatural History

• Mytilaspis bicornis Green & Lidgett in Green 1900b: 9-10. Type data: AUSTRALIA: Victoria, Myrniong, on Eucalyptus globulus. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
• Lepidosaphes bicornis (Green & Lidgett in Green, 1900); Sanders 1906: 17. change of combination
• Triaspidis bicornis (Green & Lidgett in Green, 1900); MacGillivray 1921: 277. change of combination

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• MacGil1921: pp.277 ( Adult (F) ) [Key to species of Triaspidis]
• Leonar1903: pp.28 ( Adult (F) ) [Key to species of Mytilaspis] Key as: Mytilaspis bicornis

Remarks

• Structure: Female scale reddish brown, paling to white at posterior extremity, dilated behind, often irregularly contorted, 1.5-2.0 mm long. Adult female narrowest in front, broadest across the abdominal segments. Pygidium broadly rounded, lobes rather small, often scarcely projecting beyond the margin; median pair simple, extremity broad and slightly rounded, without any indentations or crenulations. Male scale dull white; exuviae yellowish; ventral scale well developed, completely enclosing the insect, 1.25 mm long (Green, 1900b).
• Economic Importance: Green (1900b) suspects that Triaspidis bicornis is a native of Tasmania and may have been imported into Australia on young Eucalyptus globulus plants.

Illustrations

Citations