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A new species of genus Pseudoscirus Wurlitzer & Rocha, 2021, P. menglaensis Chen & Jin sp. nov. is described, which represents a newly recorded genus Pseudoscirus to China. And a key to species (adult females) of Pseudoscirus is given in the world. [ABSTRACT FROM AUTHOR]

A brief introduction of Chinese Limnesiidae taxonomy is provided. Adults of two new species, Limnesia (Limnesia) lupingae Li & Guo sp. nov. and Limnesia (Limnesia) macrophthalma Li & Guo sp. nov., from Heilongjiang and Hubei provinces respectively, are described in detail. Subtle structures are recorded with scanning electron micrographs. In addition, deutonymphs of two new species are also described in detail and compared with the adults in discussion. [ABSTRACT FROM AUTHOR]

A known species, Scirula papilataLin, 1997 based on samples collected from Hubei Province, China, is redescribed with the detailed illustration and the first description of males. [ABSTRACT FROM AUTHOR]

Two new species of genus Cunaxa, namely, C. papilla Chen & Jin sp. nov. and C. striata Chen & Jin sp. nov. are described and illustrated. C. papilla Chen & Jin sp. nov. was collected in Ruyuan Yao Autonomous County, Shaoguan City, Guangdong province, China. It's similar to C. magoebaensis Den Heyer, 1979, but differs from it by the long finger-like apophysis on the palp telofemur, propodosomal shield with fine papillae and c1, c2, d1, e1, f1 and h1 situated on small platelets. C. striata Chen & Jin sp. nov. was collected in Qingchuan County, Sichuan province and Zhaoqing City, Guangdong province, China. It's similar to C. yaylensisSergeyenko, 2009, but differs from it by the propodosomal shield with broken striae, c1 longer than or equal to f1 and h1 in length, f1 extending beyond the base of h1 and two pairs of hysterogastral setae (hgs1–hgs2). A key to adult females of Cunaxa species of the China is provided. [ABSTRACT FROM AUTHOR]

This paper deals with a new species of genus Parabonzia and newly recorded genus Bonzia from China. Parabonzia bioxys Chen & Jin sp. nov., which is described and illustrated based on adult females collected from rotten wood in Hainan Province, China, differs from all other Parabonzia by the dorsal seta of the palp telofemur having two tines instead of three or more (most species) or being unbranched (P. mindanensisCorpuz-Raros, 1996). Bonzia halacaroidesOudemans, 1927 is redescribed based on adult females collected from fallen leaves in Jiangxi Province and Chongqing City, China, which represents a newly recorded genus BonziaOudemans, 1927 to China and adds more details and new illustrations to its original description. [ABSTRACT FROM AUTHOR]

This paper reports two new species of genus Neoscirula, namely, N. bambus Chen & Jin sp. nov. from Guangxi Zhuang Autonomous Region and N. pananensis Chen & Jin sp. nov. from Zhejiang province, which are described and illustrated. A key to adult females of Neoscirula species of the China is provided. [ABSTRACT FROM AUTHOR]

Chaetotaxy is an important character especially in mites and can be applied in species diagnosis, phylogenetics, ontogeny, and so on. Chaetotaxic ontogeny of Bdella was carried out through comparing both immature and adult descriptions of eight Bdella species, including a new species, B. xinisp. nov., from China. Based on these species, chaetotaxy changes in Bdella mainly focused on ventral hypostomal setae (vh), setae on palpal basifemur, aggenital setae (ag), genital setae (g), anal setae (ad) and leg setae. [ABSTRACT FROM AUTHOR]

This paper describes three new species of genus Cunaxoides, namely, C. reticulatus Chen & Jin sp. nov., C. kanasensis Chen & Jin sp. nov. and C. allokanasensis Chen & Jin sp. nov., which are described and figured from Xinjiang Uygur Autonomous Region, China. [ABSTRACT FROM AUTHOR]

A new species, Gamasodes pachysetis Yao & Jin sp. nov., is described based on deutonymphs and adults from Jiangsu and Taiwan provinces, China. A nominal species, Gamasodes spinigerTrägårdh, 1910, new to China, is redescribed also based on deutonymph and adults from Guizhou Province. A key to Gamasodes species of China is presented. [ABSTRACT FROM AUTHOR]

Two new species of Trachygamasus Berlese, T. minutus sp. nov. Yao & Jin and T. similis sp. nov. Yao & Jin based on adult males and females, and the male of T. multisetus Yao, Jin & Zhang, 2019 are described from China. A key to the Trachygamasus species of China is presented. [ABSTRACT FROM AUTHOR]

The genus Lepidocunaxoides (Acariformes: Cunaxidae) is recorded for the first time from China and the generic diagnosis is revised on the basis of both sexes of a new species, Lepidocunaxoides bomiensis Chen & Jin sp. nov.. The new species differs from the known species Lepidocunaxoides robustus Kalúz & Ermilov, 2019 by follows: palpal tibiotarsus claw unbranched apically and tibiotarsus with a proximal bifurcated seta; cheliceral seta and adoral setae absent; propodosomal shield concave anteromedially; tibia II with one bsl. Cunaxoides neopectinatusShiba, 1978 is transferred to Lepidocunaxoides based on the generic concept. [ABSTRACT FROM AUTHOR]

This paper deals with two species of Scutascirus. Scutascirus hechiensis Chen & Jin sp. nov. is distinguished from the close species, S. pentascutellusCorpuz-Raros & Garcia, 1996 by the follows: basifemur IV with 2 sts; telofemora III with 4 sts and IV with 3 sts; genu IV with 6 sts; tibia I with 2 bsl and III with 1 bsl; tarsus I with 3 bsl. The male of Scutascirus triangulumLin, Zhang & Ji, 2001 is described for the first time. [ABSTRACT FROM AUTHOR]

A new species of Orangescirulinae, Orangescirula lii Chen & Jin sp. nov., is described and illustrated. It is characterized by having 2 claw-like setae, no solenidion and adorsal setae on palpal tibiotarsus, having 5 pairs of hysterogastral setae, 1 bsl and 5 sts on tibia III, 1 asl and 3 bsl on tarsus I. A key to adult females of Orangescirula of the world is provided. [ABSTRACT FROM AUTHOR]