In a moss sample from Cameroon a few specimens and eggs of a new species of tardigrade were found. Macrobiotus stanislausi sp. nov. belongs to the Macrobiotus nelsonae morpho-group and is most similar to Mac. ragonesei. However, it differs from Mac. ragonesei mainly by the shape of the egg processes and the absence of annulations on process endings. A dichotomous key for Macrobiotus nelsonae morpho-group is also proposed. Moreover, the genus Macrobiotus is divided into 12 morpho-groups based on morphology of the eggs to facilitate future taxonomic research on this genus.

Antarctic is an area with extreme conditions for the survival of living organisms, as well as a specific region for conducting research. For this reason, studies of Antarctic tardigrades are rather fragmentary. Since 1904, when the first tardigrade was described in the Antarctic, up to the present, 76 species of tardigrades have been reported from Antarctic and Subantarctic regions. In this paper, we report seven tardigrade taxa found in different locations of the western coast of the Antarctic Peninsula during the 26^th Ukrainian Antarctic Expedition. Diphascon puchalskii and Mesobiotus aradasi are recorded for the first time outside type localities for Danco Coast and the area outside King George Island correspondently.

Helicopsyche von Siebold, 1856 is divided into six subgenera, of which two occur in Brazil: H. (Cochliopsyche) with nine spp. and H. (Feropsyche) with 25 spp. Although the latter subgenus is the most species-rich in the country, only three species are known from the Brazilian Amazon. In this study, we describe and illustrate two new species for Central Amazonia, Brazil: Helicopsyche johansoni sp. nov. and Helicopsyche manaos sp. nov. based on the morphology of adult males. In addition, a map with the distribution of the species of this subgenus for the Brazilian Amazon is provided.

A new extinct genus and species from the subfamily Dolichoderinae, Dlusskyus groehni gen. et sp. nov., is described based on the single male from Baltic amber (late Eocene, 37.8–33.9 Ma). It differs from all extant and extinct Dolichoderinae genera in the following combination of features: antennae 13-segmented, scape shorter than the second funicular segment, which is the longest; palp formula 6, 4; clypeus not inserted between frontal carinae, frontal triangle well outlined and separated from clypeus by suture; clypeus with longitudinal median carina, its anterior margin very weakly convex, without medial notch; mandibles crossing when closed, masticatory margin long, with two minute sharp apical and preapical teeth and a row of minute sharp denticles, serrate; scutum without notauli; petiole nodiform, with short peduncle; meso- and metatibiae with large simple spur; pretarsal claws without preapical tooth; posterior margin of pygidium with median tooth; subgenital plate with very shallow median notch; pygostiles present; stipites of genitalia very weakly curved, narrow, with rounded apices, telomeres not strongly elongated; forewings with closed cells 1r+2r, 3r, rm and mcu; jugal lobe absent. The taxonomic position of this genus is discussed.

A review of the Greek members of the Temnothorax graecus species-group revealed two species new to science: T. mytilenes sp. nov. (Greece: Lesbos, Samos, Kos and Rhodes, and Türkiye: Ayvalık Peninsula) and T. phaetoni sp. nov. (endemic to Cyclades). Additionally, the diagnoses and redescriptions are provided for T. aeolius (Forel, 1911), T. graecus (Forel, 1911), and T. smyrnensis (Forel, 1911). Lectotypes are designated for Leptothorax bulgaricus subsp. graecus Forel, 1911, Leptothorax bulgaricus subsp. aeolius Forel, 1911, and Leptothorax bulgaricus subsp. smyrnensis Forel, 1911. All members of the graecus species-group are associated mostly with moderately humid to arid deciduous forests or Mediterranean bushes. A dichotomous key to the graecus species-group from Greece is given.

The parasitoid wasp, Psyllaephagus saxaulicus Sugonjaev, 1968 (Hym.: Encyrtidae) is newly reported from Iran. It was reared from the olive psyllid, Euphyllura straminea Loginova (Hem.: Liviidae) on the olive tree, Olea europaea L. (Oleaceae), which is considered as a new host-parasitoid association. Here, the male of P. saxaulicus is described and illustrated for the first time and a redescription is provided to facilitate the recognition of its female. Furthermore, other new associations, Marietta picta (André) (Hym.: Aphelinidae) and Chartocerus kurdjumovi (Nikol`skaya) (Hym.: Signiphoridae) as hyperparasitoids are recorded.

This paper is the sixth in a series of studies on the genus Habroloma Thomson from China. Males of three known species published from only females are herein noted and illustrated and their aedeagi are described: Habroloma (Parahabroloma) chongrenensis Peng, 2021, Habroloma (Parahabroloma) pulchrum Peng, 2021, and Habroloma (Parahabroloma) subfusiformis Peng, 2021.

Lepidomystix gen. nov. weigeli sp. nov. is described from the foothills of Himalaya in India and Nepal. The taxon is characterised by striking scales on the dorsal and ventral side, by very short antennae and widely broadened tarsi of all legs (perhaps only in males). The new taxon is assigned to the subfamily Stenochiinae and is compared with the genus Stenochinus Motschulsky, 1860, tribe Cnodalonini. However, it remains doubtful if Lepidomysticus gen. nov. belongs to the same tribe, because characters of the female genitalia (ovipositor, spermatheca) are not available. The species is known for a limited number of specimens, suggesting a peculiar or cryptic lifestyle.

In the present paper, the following four new taxa from the subtribe Statirina are described and illustrated: Arthromacra olivacea sp. nov. (Vietnam), A. qiang sp. nov. (China: Sichuan), Chlorophila hirta sp. nov. (Laos, Peninsular Malaysia), and Donaciolagria rubida sp. nov. (China: Sichuan). A new genus-rank synonym is proposed: Chlorophila Semenov, 1891 = Costiferolagria Pic, 1915 and the new combinations are made for the species previously attributed to Costiferolagria: Chlorophila atricolor (Pic, 1927) comb. nov., Arthromacra grossepunctata (Borchmann, 1916) comb. nov., Chlorophila octocostata (Borchmann, 1916) comb. nov., Chlorophila semialutacea (Pic, 1915) comb. nov. Arthromacra flavicollis Pic, 1927 found to be conspecific with A. flavicollis var. diversipes Pic, 1927 syn. nov. Additional data on morphology and new records are provided for fourteen Statirina species from continental China, North-eastern India, Indochina Peninsula, and Taiwan.

The Australian cryptorhynchine weevil genus Tentegia Pascoe, 1873 is unique among Curculionoidea due to its coprophagous life style. The adults roll or pull marsupial dung pellets and cache them under logs, and the larvae develop in the pellets. In a remarkable case of convergent evolution, Tentegia is the only known beetle taxon outside of Scarabaeinae (Scarabaeidae) with such dung-rolling and nesting habits. In this paper the taxonomy of Tentegia is revised, including the redescription of the genus, descriptions of the six former species and three new species from the Northern Territory, T. tompsetti sp. nov., T. grossbechleri sp. nov. and T. weiri sp. nov. Lectotypes are designated for Tentegia quadriseriata Lea, 1912, Tentegia amplipennis Lea, 1930, T. quadrisignata Lea, 1910, T. anopla Lea, 1908, T. bisignata Pascoe and T. quinquesinuata Lea. All species are illustrated and their distributions are mapped, revealing the genus to occur in monsoonal and arid ecosystems of the Northern Territory, Queensland, New South Wales, South Australia and Western Australia. The dung-rolling behaviour of Tentegia stupida (Fabricius) is documented on video recordings for the first time.