Valid Names Results

Trionymus luoyangensis is now Dysmicoccus luoyangensis Li & Wu, 2014 (Pseudococcidae: Dysmicoccus)

Nomenclatural History

• Dysmicoccus luoyangensis Li & Wu 2014: 376-378. Type data: CHINA: Henan, Luoyang, Baiyunshan [34°5′N, 112 °3′E], under the leaf sheath of bamboo, 8/16/2008, by San-an Wu and Jin Liu. , , by original designation Type depository: Beijing: Forestry University, Beijing, China; accepted valid name Notes: Paratypes: 10 same date and locality as holotype. 2 ♀♀, HENAN: Luoyang, Baiyunshan, under the leaf sheath of Fargesia sp., 18/19/2009, coll. San-an Wu and Yuan Lu.
• Trionymus luoyangensis (Li & Wu, 2014); Danzig & Gavrilov-Zimin 2015: 146. change of combination
• Dysmicoccus luoyangensis Li & Wu, 2014; Zhang, Wang & Watson 2023: 129. revived combination (previously published)

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• ZhangWaWa2023: pp.129 ( Adult (F) ) [Dysmicoccus species in China]
• DanzigGa2015: pp.99-106 ( Adult (F) ) [Palaearctic Trionymus species]
• LiTsWu2014: pp.371 ( Adult (F) ) [Mealybugs with legs on bamboo in China] Key as: Dysmicoccus luoyangensis

Remarks

• Systematics: This species is similar to D. boninsis (Kuwana, 1909) in possessing about 6 pairs of cerarii including frontal pair on head, but can be easily distinguished from the latter by absence of translucent pores on the hind trochanter and absence of tubular ducts on the dorsum. The new species is also close to D. dengwuensis Ferris, 1954 (this species has also been collected on the same host and in the same locality as holotype), but differs from D. dengwuensis in lacking tubular ducts on the dorsum and in having only a few multilocular disc pores and tubular ducts on the venter, whereas D. dengwuensis Ferris has numerous tubular ducts on both surfaces of body. (Li, Tsai & Wu, 2014) Danzig & Gavrilov-Zimin (2015) transferred this species to Trionymus, stating that it was similar to T. boninsis, but differs in the absence of dorsal tubular ducts and translucent pores on the hind coxae. Zhang, Wang & Watson transferred it back to Dysmicoccus pending further investigation and genetic studies.
• Structure: Body of adult female on microscope slide elongate oval, 2.55–4.38 mm long and 1.15–1.90 mm wide. Anal lobes slightly prominent, ventral surface of each lobe bearing 1 stout apical seta, 170–220 μm long. Antennae each 410–440 μm long, with 8 segments.
• General Remarks: Detailed description and illustration in Li, Tsai & Wu, 2014.

Illustrations

Citations