Valid Names Results

Orthezia yashushii Kuwana, 1923 (Ortheziidae: Orthezia)

Nomenclatural History

• Orthezia yashushii Kuwana 1923b: 58-63. Type data: JAPAN: Tsugumi-mura, Oita-ken, Kiushiu, on wild chrysanthemum, fall 1914, by I. Kuwana. Unknown type status, unknown, accepted valid name Notes: Morrison (1952) states that much of Kuwana's material was destroyed in the 1923 earthquake, if type material exists, it would most likely be in ITLJ. Illustr.
• Orthezia yasushii Kuwana, 1923; Morrison 1952: 53. misspelling of species epithet
• Orthezia yashusi Kuwana, 1923; Kozár, Konczné Benedicty, Fetykó, Kiss & Szita 2013: 56. misspelling of species epithet

Common Names

• yasushi orthezia Yang1982

Ecological Associates

Hosts:

Families: 4 | Genera: 10

Geographic Distribution

Keys

• KaydanKoSz2014b: pp.161-162 ( Adult (F) ) [Orthezia in Turkey]
• Kozar2004: pp.324-325 ( Adult (F) ) [Key to the world species of Orthezia]
• Danzig1988: pp.696 ( Adult (F) ) [Orthezia species of the Soviet far east]
• Danzig1986a: pp.119 ( Adult (F) ) [Orthezia species of the far eastern USSR]
• Danzig1980b: pp.103 ( Adult (F) ) [Orthezia species of the far eastern USSR]
• Morris1952: pp.11 ( Adult (F) ) [Species in the Urticae group of Orthezia]

Remarks

• Systematics: Morrison (1952) states that there is little evidence for the distinction between O. japonica and O. yasushii (sic), but that until topotype material of these species can be found they must be considered as valid.
• Structure: Adult female is oval, dark reddish brown on the dorsal surface and dark brown legs. The body is completely covered with a white waxy secretion in four series. The adult male is elongate oval with the posterior end narrow. Coloring similar to that of female. Wings are transparent, white, slightly irridescent and pubescent. Eggs are elongate oval and yellowish brown in color. The body of a newly hatched larva is broadly oval in form, yellowish brown in color and entirely naked. Second stage larvae are broadly oval in outline, dark brown in color and thickly covered with fine tubules. Male pupae are elliptical, pointed at the caudal end with the abdominal region wider (Kuwana, 1923b).
• Biology: This species produces one generation per year with eggs being laid in the middle of June. Larvae hatch within the marsupium and remain there until their bodies become hard. First molt takes place in September and the second in the latter part of November. The body is naked immediately after the molt occurs, but is soon covered with a white waxy secretion (Kuwana, 1923b). Danzig (1980b) states this species lives on dry slopes.
• General Remarks: Detailed description by Kuwana (1923b). Redescription and illustration by Kozár (2004).

Illustrations

Citations