The current knowledge of pseudoscorpions in Estonia is summarized, based on specimens preserved in various Estonian collections and new material collected from 1993 to 2015. Altogether 474 studied specimens belonged to 14 species, including nine species recorded from Estonia for the first time. Supplemented by Apocheiridium rossicum, listed by literature data only, the number of known Estonian pseudoscorpions is now set at 15. The findings of Mesochelifer ressli are the northernmost known for the species. Some ecological and phenological observations were made on the most common species, along with notes on the habitat preferences of other species and the use of different trapping methods. The composition of the known Estonian fauna is compared with the published records from the neighbouring countries, revealing a highest similarity to the Finnish fauna.The possible occurrence of other species in Estonia and the latitudinal species diversity gradient in the Eastern Baltic region are shortly discussed.

Along-term faunistic study of bark beetles (Coleoptera: Scolytidae), conducted in Estonia, as well as in Karelia, Leningrad (St. Petersburg) and Murmansk provinces of Russia, enables a comparison of the species composition of bark beetles in the regions bordering Finland. Altogether the distribution patterns of 83 species of scolytids are examined. The northern borders of the distribution range for Scolytus scolytus, S. multistriatus, S. laevis, Hylastes ater, H. opacus, Orthotomicus longicollis, Pityogenes trepanatus, Ips amitinus and Cryphalus abietis in Northern Europe are redefined. The list of bark beetles for Estonia and North- Western Russia (Karelia, Leningrad and Murmansk provinces) with their occurrence in some biogeographical provinces of Fennoscandia (Ik, Kl, Kon, Ks, Kk, Lim) is given. Recent records of bark beetles, endangered or rare in Finland, and their current distribution in the neighbouring regions are discussed.

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Metsamardikate (Coleoptera) uued liigid Eestis The article presents faunistic data on 85 species of Coleoptera new to the Estonian fauna. Most of the material has been collected within the framework of various research and monitoring projects carried out in Estonian nature reserves (1998-2009). A new type of trunk window trap, designed by the author in 2004 mainly for monitoring purposes, has been successfully used. 17 of the 85 species are new for the fauna of whole Baltic region: Pseudeuglenes pentatomus (Ths.) (Aderidae), Caenocara subglobosum (Muls. & Rey), Xyletinus tremulicola Y. Kangas (Anobiidae), Choragus sheppardi Kirby (Anthribidae), Cryptocephalus saliceti Zebe (Chrysomelidae), Dirrhagofarsus attenuatus (Mäklin), Hylis cariniceps (Rtt.), Microrhagus emyi (Rouget) (Eucnemidae), Gnathoncus communis (Marseul) (Histeridae), Notolaemus unifasciatus (Latr.) (Laemophloeidae), Agathidium discoideum Er. (Leiodidae), Anisoxya fuscula (Ill.) (Melandryidae), Mordellistena neuwaldeggiana (Pz.) (Mordellidae), Ripidius quadriceps Abeille de Perrin (Rhipiphoridae), Lissodema cursor (Gyll.) (Salpingidae), Aphodius quadrimaculatus (L.) (Scarabaeidae) and Eutheia schaumii Kiesw. (Scydmaenidae). One of the species, Caenocara subglobosum (Muls. & Rey) (Anobiidae), is new for the whole Northern Europe. Specimens of this species were collected from eastern and southern Estonia: most were caught in window traps but some also emerged from the collected fruiting bodies of Common Puffball (Lycoperdon perlatum). For 21 new species, Estonia lies on the northern edge of their range. Three of these, Triphyllus bicolor (F.), Mycetophagus ater (Rtt.) and Glischrochilus grandis (Tournier) that were collected from 6-10 sites, have a wider distribution in Estonia. Two species, Xyletinus tremulicola Y. Kangas (Anobiidae) and Stephanopachys linearis (Kug.) (Bostrichidae), have been listed on Annex II of the EU Habitats Directive. Two new species (Lymantor aceris (Lindemann) and Xyleborinus saxesenii (Ratz.)) were also added to the list of Estonian bark beetles (Curculionidae: Scolytinae).

The article presents an annotated list of 99 new beetle species for Estonia (mainly woodland ones) along with their faunistic data. Most of the material has been collected by the author using trunk window traps within the framework of various research and monitoring projects in 2011–2015. In addition, the work comprises a number of unpublished new species, which were revealed in the material of older collections. These originate mainly from the coleopterologist J. Miländer’s beetle collection preserved at the Estonian University of Life Sciences (finds from the period of 1930–1982) and from the private collection of zoosemiotist A. Turovski. 13 species are new for the fauna of the whole Baltic region. Three species are new for Northern Europe: Triplax carpathica Rtt. (Erotylidae), Phloiotrya subtilis (Rtt.) (Melandryidae) and Carpophilus truncatus Murray (Nitidulidae). Triplax carpathica Rtt. (Erotylidae) and Clypeorhagus clypeatus (Hampe) (Eucnemidae), each known only from a single locality, belong to the European IUCN Red List. Two discovered species, Airaphilus perangustus Lindberg (Silvanidae) and Ochthebius czwalinai Kuwert (Hydraenidae), are known for their very restricted spreading area in Europe. For a large part of the new species (36 out of 99) Estonia lies on the northern edge of their areal. These species have not yet been recorded north of Estonia in Finland, where the beetle fauna is studied better. For two Nitidulidae species, Carpophilus marginellus Motsch. and Glischrochilus quadrisignatus (Say), fast spreading over Estonia was registered in the last five years. Somewhat earlier, a species closely related to the latter, Glischrochilus grandis (Tournier), showed the same tendency of fast spreading in Estonia. Six species, Pityophthorus glabratus Eichhoff (Curculionidae), Dirrhagofarsus attenuatus (Mäklin) (Eucnemidae), Hypebaeus flavipes (F.) (Malachiidae), Dacne notata (Gmelin) (Erotylidae), Aulonothroscus brevicollis (Bonv.) (Throscidae) and Carpophilus dimidiatus (F.) (Nitidulidae) have to be excluded from the list of Estonian fauna due to wrong identification.