Valid Names Results

Unachionaspis tenuis (Maskell, 1897) (Diaspididae: Unachionaspis)

Nomenclatural History

• Fiorinia tenuis Maskell 1897a: 242-243. Type data: JAPAN: Miyanoshita, on Bambusa sp. Syntypes, female, Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; Davis: The Bohart Museum of Entomology, University of California, California, USA; Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name
• Kuwanaspis tenuis (Maskell, 1897); Lindinger 1935: 149. change of combination
• Chionaspis sakaii Takahashi 1936: 2-4. Type data: JAPAN: Kyushu, Kagoshima Prefecture, Tanegashima, Omotemachi, on Bambusa sp., 21/04/1935, by K. Sakai. Syntypes, female, Type depository: Taichung: Entomology Collection, Taiwan Agricultural Research Institute, Wu-feng, Taichung, Taiwan; junior synonym (discovered by TakahaTa1956, 10). Illustr.
• Unachionaspis tenuis (Maskell, 1897); Takahashi & Tachikawa 1956: 10. change of combination

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 8

Geographic Distribution

Keys

• KimKiLe2023: pp.6 ( Adult (F) ) [Scales on bamboos in South Korea]
• TianXi2022a: pp.531 ( Adult (F) ) [Unachionaspis species]
• SuhJi2009: pp.1041-1043 ( Adult (F) ) [Key to species of armored scales intercepted on imported plants (slide mounted females)]
• Danzig1993: pp.365 ( Adult (F) ) [Key to species of Unachionaspis]
• Danzig1988: pp.724 ( Adult (F) ) [Key to species of Unachionaspis]
• Danzig1986a: pp.389 ( Adult (F) ) [Key to species of Unachionaspis]
• Paik1978: pp.395 ( Adult (F) ) [Key to Korean species of Unachionaspis]
• Takagi1961: pp.14 ( Adult (F) ) [Key to species of Unachionaspis]
• Kuwana1925b: pp.2 ( Adult (F) ) [Key to Japanese species of Fiorinia] Key as: Fiorinia tenuis
• MacGil1921: pp.375 ( Adult (F) ) [Key to species of Fiorinia] Key as: Fiorinia tenuis

Remarks

• Systematics: Unachionaspis tenuis is distinguished from all other Unachionaspis species by its unique, asymmetrical body shape, scattered dorsal microducts, and by each side having 2 marginal gland spines lateral to L2 (the other Unachionaspis species all have only 1 gland spine in this position). (Tian & Xing, 2022a)
• Structure: Adult female body elongate, slender; meso- and metathorax more or less expanded laterally; pygidium narrow. Anterior spiracles each with one or two accompanying disc pores; posterior spiracles with or without a single pore. Dorsal macroducts few, present anteriorly as far as 3rd or usually 2nd, or at times even 1st abdominal segment, scattered on pygidium. 2-5 tubercular submarginal gland spines present on mesothorax; similar ones present or absent on metathorax and free abdominal segments, if present, few. Median lobes and both loubles of 2nd lobes very small, entire (Takagi, 1961).
• Biology: Females found on the lower leaf surfaces, at leaf bases, along the midrib, either individual or grouped close together; heavily infested leaves had wilted and developed black necrotic spots beneath and sround the scale insects. (Tian & Xing, 2022a)
• General Remarks: Detailed description and illustration by Maskell (1898) and Takagi (1961). Detailed redescription and illustratiions in Tian & Xing, 2022a.

Illustrations

Citations