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The genus Oxyartes currently comprises 17 taxa, of which 12 are found in China, representing the high diversity in China. This list includes the two species from China as described in this paper. The first is a new remarkable species O. bouxraeuz sp. nov. collected from Gulinqing township, Yunnan. The second is a newly recorded species, O. cresphontes. This species is reported from Mdog, Xizang, China. A key to this genus from China is presented. Type specimens are deposited in the Yunnan Agricultural University (YNAU).

Calvisia is a colorful winged stick insect genus consisting of 6 subgenera and 44 species widely distributed in temperate and tropical Asia. C. medogensis syn. nov. was discovered in Mdog, Xizang (Tibet), China and is so far the only species recorded from China. We here propose that C. medogensis syn. nov. is a synonym of C. fuscoalata after checking type specimens of both species. New materials studied are deposited in Yunnan Agricultural University, China (YNAU).

Cubanthonomus Anderson, new genus (Coleoptera: Curculionidae: Curculioninae: Anthonomini) is here described to accommodate the Cuban species Cleogonus grossulus Suffrian, which was previously placed as incertae sedis within Cleogonini. The genus is characterized by head constricted behind the eyes, globose form, compact antennal funicle of seven antennomeres, base of pronotum strongly produced posteriorly at middle, elytra with rows of punctures (striae effaced), tarsal claws with small basal tooth, profemora with two teeth, meso- and metafemora with single small tooth. Specimens have been collected in tropical semideciduous forest but no host associations are known.

Xenophyophores are large, agglutinated foraminifera that dominate the benthic megafauna in some parts of the deep sea. Here, we describe an assemblage of largely fragmentary specimens from the Clarion-Clipperton Zone (CCZ), an area of the eastern abyssal Pacific hosting large, commercially significant deposits of polymetallic nodules. We recognised 18 morphospecies of which eight yielded DNA sequences. These include two new genera and three new species, Claraclippia seminuda gen. & sp. nov., Stereodiktyoma mollis gen. & sp. nov., and Aschemonella tani sp. nov., three that are assigned to known species, Abyssalia foliformis, Aschemonella monilis and Shinkaiya contorta, and two assigned to open nomenclature forms Abyssalia aff. foliformis and Stannophyllum aff. granularium. An additional ten forms are represented only by morphology. The following seven are placed in known genera, species and open-nomenclature forms: Aschemonella? sp., Homogammina sp., Psammina multiloculata, P. aff. multiloculata, P. aff. limbata form 1 sensu Gooday et al., 2018, P. aff. limbata form 2 sensu Gooday et al., 2018, and Stannophyllum spp. The other three could not be identified to genus level. This new collection brings the total of described and undescribed species and morphotypes from the CCZ to 27 and 70, respectively, reinforcing the already high diversity of xenophyophores known from this part of the Pacific.

Macronychus xuhaoi sp. nov., a new species of the genus Macronychus Mller, 1806 is described from Xizang, Southwest China. The new species belongs to Macrynychus quadriluberculatus species group. Habitus and other diagnostic features of the new species are described and illustrated.

In this study, we describe Parachaetocladius lenferringtoni sp. nov., based on all its life stages, and provide keys to adult males and pupae of the Nearctic Parachaetocladius. The new species was originally placed in Parachaetocladius abnobaeus (Wlker 1959) due to the similarity in the hypopygium of these species. However, a detailed examination of adults and associated immature specimens demonstrates that P. lenferringtoni sp. nov. represents a single species that is different from P. abnobaeus. Diagnostic adult and pupal characters were identified to separate this new species from P. abnobaeus and other species of Parachaetocladius. The separation of the larva of P. lenferringtoni sp. nov. and P. abnobaeus is currently tenuous, but some possible diagnostic characters are provided. Material of P. lenferringtoni sp. nov. was obtained for this study from Canada (Manitoba) and the United States of America (Kansas, Minnesota, Nebraska, and Wisconsin), indicating this species is largely limited to central North America. The habitat of this new species matches that of other Parachaetocladius species in that it has been collected from sandy substrates in springs and groundwater-dominated streams.

Two new species of genus Metanigrus Tsaur, Yang & Wilson, 1986 (Fulgoromorpha, Meenoplidae), M. afflatus sp. nov. from Hainan Province and M. angularus sp. nov. from Yunnan Province, are described and illustrated, bringing the total number of species within the genus to 8. An updated checklist and identification key to known species of Metanigrus are provided.

The 250 species of the second largest genus of Thysanoptera, Liothrips, are known as feeding mainly on green leaves, with many inducing galls or associated with galls. In China, 33 species are recognized including L. brevis sp. n., L. elongatus sp. n., L. longistylus sp. n., L. motuoensis sp. n., L. piceae sp. n., L. populi sp. n. and L. tibetanus sp. n., also seven species are recorded from this country for the first time. Four Hans Liothrips species are considered as new synonymies of L. vaneeckei that might be widespread in the Holarctic region. Three species are newly combined as Liothrips aporosae comb.n., Teuchothrips fuscus comb.n. and T. turkestanicus comb.n. The illustrated identification key to Chinese Liothrips species excludes L. hsuae but includes L. mirabilis due to its potential as a pest of Piper plants are growing throughout Southern China. Biology, structural variation, and generic relationships are also discussed.

Zelia Robineau-Desvoidy, 1830 is a genus of Dexiini distributed throughout the New World, with most of its species in the Neotropical Region. This revision deals with the exclusively Neotropical species of Zelia, with the exception of the recently revised Zelia discalis group. The following new synonyms of Zelia are proposed in the present study: Diaugia Perty, 1833, syn. nov.; Huascarodexia Townsend, 1919, syn. nov.; Taperamyia Townsend, 1935, syn. nov.; Ushpayacua Townsend, 1928, syn. nov.; and Yahuarmayoia Townsend, 1927, syn. nov.. As a result of these synonymies, the following new combinations are proposed: Zelia angusta (Perty, 1833), comb. nov.; Zelia pickeli (Townsend, 1938), comb. nov.; Zelia pulchra (Townsend, 1919), comb. nov.; and Zelia ureophila (Townsend, 1928), comb. nov. Two additional species are moved to Zelia from other genera: Zelia obscura (Walker, 1853), comb. nov. (from Stomatodexia Brauer & Bergenstamm, 1889); and Zelia varipennis (Wulp, 1891), comb. nov. (from Scotiptera Macquart, 1835). Additionally, Melaleuca peruviana Brthes, 1920 is moved from its placement in Zelia to Unplaced species of Tachininae. Illustrations and detailed descriptions are presented for all species dealt with here. The male terminalia are described for Z. obscura, Z. pickeli and Z. potens. The female terminalia are described for the first time for Z. limbata, Z. pickeli, Z. plumosa, Z. potens and Z. ureophila. The first larval instar of Z. limbata, Z. pickeli, Z. plumosa and Z. potens are described and illustrated for the first time. A new species, Zelia infuscata sp. nov., is described from Brazil. Two new synonyms are proposed at the species level: Yahuarmayoia analis Townsend, 1927 (type species of Yahuarmayoia) and Yahuarmayoia phaeoptera (Wiedemann, 1830) as junior synonyms of Zelia potens (Wiedemann, 1830), syn. nov. Zelia phaeoptera is recognized as a subjective synonym of Z. potens, and by First Reviser action, the latter is chosen as the senior of the two Wiedemann names. An updated diagnosis for the genus Zelia and a key to the Neotropical species, including the Nearctic species that also occur in the Neotropics, are given. Previous lectotype fixations are recognized for Dexia limbata Wiedemann, 1830 and Dexia phaeoptera Wiedemann, 1830, and new lectotype designations are proposed for Dexia obscura Walker, 1853, Dexia plumosa Wiedemann, 1830 and Dexia potens Wiedemann, 1830. Finally, a brief biography of Dom Bento Pickel, who collected the holotype of Z. pickeli, is given.

The monotypic genus Dinahia Bechyn, 1946, endemic to the Atlantic Forest (Rio Grande do Sul, Santa Catarina, and So Paulo), is reviewed. Dinahia privigna Bechyn, 1946 is redescribed, and, for the first time, the aedeagus and spermatheca of this species are described and illustrated herein. Additionally, a diagnosis for the genus, a nomenclatural history, photographs of both nontype specimens and the syntype, a geographic distribution map, and a discussion of Dinahia and similar genera according to the bibliography (Calligrapha Chevrolat, 1836; Cosmogramma Erichson, 1847; Desmogramma Erichson, 1847; Grammomades Achard, 1923; and Zygogramma Chevrolat, 1836) are provided. This discussion incorporates a comparative table encompassing characters extracted from the antennae, maxillary palps, prosternal, mesoventral, and metaventral processes, V tarsomeres, and claws. Additionally, it includes an illustrated replacement couplet for step 22 in Sampaio & Fonseca's (2023) identification key, both to elucidate Dinahia's differentiations and similarities from these five genera.