Common mistletoe is increasingly mentioned as contributing not only to the decline of deciduous trees at roadside and in city parks, but to conifers in stands. The presence of Viscum in fir stands has been known for many years, but since 2015 has also been the cause of damage to pine. In 2019, mistletoe was observed on 77.5 thousand hectares of Scots pine stands in southern and central Poland. Drought resulting from global climate change is implicated as an important factor conducive to weakening trees and making them more susceptible to the spread of mistletoe and other pests. This paper presents an overview of the latest information on the development of this semi-parasitic plant in Poland, its impact on tree breeding traits and raw material losses, as well as current options for its prevention and eradication.

Monochamus sartor sartor from Central European mountain ranges and M. s. urussovii from the Eurasian boreal zone are subspecies whose taxonomic statuses have been questioned. This sawyer beetle is a natural element of spruce forests but is considered to be a timber pest in spruce plantations. In this study, different sets of data (morphology, genetics and ecology) were used to verify the taxonomic status of M. sartor across its entire range. Morphologically, not only both subspecies but also European and Asian populations of M. s. urussovii were found to be distinct. Genetic data also showed that both subspecies have distinct mitochondrial haplogroups; however, divergence between them is very weak (of ca. 1%), suggesting they split very recently, possibly at the end of the Pleistocene glaciations. Species delimitation methods gave discordant results, either rejecting the species status of M. s. sartor and M. s. urussovii (Poisson tree processes) or confirming them as distinct taxa (the multispecies coalescent model for species validation). Host plant preferences also partially differentiate the subspecies, as M. s. urussovii has a broader diet than the generally monophagous, spruce-dependent M. s. sartor. Moreover, each subspecies is infected by different strains of the intracellular bacterium Wolbachia, which could be one of the factors causing their genetic isolation, regardless of geographic isolation. Aside from broadening the basic knowledge on the taxonomy and genetics of Monochamus sartor, this study shows that any research on these sawyers needs to consider their separate phylogenetic lineages, as do any plans for population management or conservation.

During this survey, 195 species of coleopterans have been recorded from the Lagodekhi Protected Areas (LPA). Thirty families are recorded for the first time from this area, of which Rhysodidae, Sphindidaeand, and Thymalidae are new for Georgia. One hundred fifty-seven species are new to LPA and 66 of them are new country records.

New data on the distribution, biology and ecology of the longhorn beetles occurring in southern and eastern regions of Kazakhstan are presented together with a list of 78 species that were collected during two entomological expeditions conducted in May and June 2017. New localities of some rare taxa endemic to this region of Asia, such asPsilotarsusbrachypterusbrachypterus(Gebler, 1830),Stenocorusminutus(Gebler, 1841) andDorcadioncrassipescrassipesBallion, 1878 are given.ExocentrusstierliniGanglbauer, 1883 is recorded from Kazakhstan for the first time. Moreover, the occurrence of three species:AmarysiusduplicatusTsherepanov, 1980,RhopaloscelisunifasciatusBlessig, 1873 andSaperdaalbertiPlavilstshikov, 1916, which were recently found in the country, is also confirmed. Furthermore, high-quality photographs of several unique taxa, i.e.Psilotarsusbrachypteruspubiventris(Semenov, 1900),Xylotrechusadspersus(Gebler, 1830),X.alakolensisKarpiński & Szczepański, 2018,Anoplistesgalusoi(Kostin, 1974),A.jacobsoniBaeckmann, 1904 andObereakostiniDanilevsky, 1988 along with images of their habitats and feeding galleries are also presented. New localities of species considered serious pests or invasive, such asTuraniumscabrum(Kraatz, 1882) andTrichoferuscampestris(Faldermann, 1835), respectively, are also given. A new synonymy is proposed:CerambyxscalarisLinnaeus, 1758 =CerambyxhieroglyphicusPallas, 1773,syn.n.

The paper presents new data on the occurrence of 69 beetle species collected in 2017 in the Białowieża Forest, NE Poland. The list contains representatives of 27 families: Anthribidae, Bostrichidae, Ciidae, Cleridae, Coccinellidae, Corylophidae, Cryptophagidae, Curculionidae, Dasytidae, Elateridae, Endomychidae, Eucnemidae, Histeridae, Laemophloeidae, Latridiidae, Leiodidae, Lycidae, Melandryidae, Mycetophagidae, Ptinidae, Ripiphoridae, Salpingidae, Staphylinidae, Tenebrionidae, Tetratomidae, Throscidae, and Zopheridae. The majority of the species represents saproxylic, i.e. dead wood-dependent, beetles. Biology and distribution of some rarely recorded species are briefly discussed. All species are reported for the first time from the Białowieża Forest and, furthermore, Corticaria crenicollis Mannerheim, 1844 (Latridiidae) is new for the fauna of Poland.