Volume 33, Number 1, 2024, pp. 3 - in progress

The article provides a detailed illustrated description of a new genus and species of the tribe Halyini (Heteroptera: Pentatomidae: Pentatominae) from Myanmar. The description is based on external morphological characters and the structure of the male and female terminalia, including the completely inflated aedeagus. A detailed comparison of the new genus with the closely related genera Halys Fabricius, 1803 and Neohalys Ahmad et Perveen, 1982 is given, as well as a key for these three genera.

Adropion camtchaticum sp. nov. (Tardigrada: Eutardigrada: Itaquasconidae) is described. The type specimens of the new species were found in a moss sample collected on the Kamchatka Peninsula. The new species is most similar to A. scoticum (Murray, 1905), but clearly differs from the latter in the larger body size, thinner bucco-pharyngeal tube, the presence of teeth in the oral cavity, and toothed bases of claws of all legs. It is the first record of semiterrestrial tardigrades from the continental part of the Russian Far East.

We describe Tenuibiotus yeliseii sp. nov., a new tardigrade species from Svalbard, using morphological and morphometric analyses conducted with the use of light and scanning electron microscopy, as well as genetic analyses based on four molecular markers (three nuclear, 18S rRNA, 28S rRNA, ITS-2, and one mitochondrial, COI). A phylogenetic analysis of the genus Tenuibiotus Pilato et Lisi, 2011 is conducted using new data. In addition, the taxonomic significance of gibbosities on leg IV as a key character for species identification in Tenuibiotus is discussed. A key to the species of Tenuibiotus is proposed.

A new recent foraminiferal genus, Raskiniella gen. nov., with the type species Spirillina plana Wiesner, 1931, belonging to the family Raskiniellidae fam. nov., order Raskiniellida ord. nov. (subclass Spirillinana: superorder Spirillinoida), is described based on samples from Antarctica. The new genus is characterised by a complex canal system that has not been previously described in any other subclasses of multichamber foraminifera with a canal system. Canals extend inside the shell wall and are partly visible as a network on the wide peripheral margin of the shell. On the dorsal surface, these canals are radially arranged, resembling ribs, and extend perpendicularly to the chamber volutions towards the centre but do not reach it. A unique feature of the described canal system is the presence of smaller canals within larger ones; sometimes internal canals can be of third or even fourth order. The majority of the canals are located within the wall of the tubular chamber, forming a network of irregularly branching tubes that frequently intertwine, varying in shapes and sizes, often with swellings. It is the collective mass of these canals that constructs the framework of the shell. The round openings with a slightly projecting outer margin, located on the ventral side of the shall, previously described as pores in S. plana, are actually the external openings of the canal system and function as additional apertures. Since the type species of Spirillina Ehrenberg, 1843, S. vivipara Ehrenberg, 1843, like apparently all other or most species of the genus, does not possess a canal system, S. plana is transferred to the new genus, which is placed in the subclass Spirillinana.