Baltic J.Coteopterol. 1 (1 - 2) 2001 ISSN 1407-8619 New and rare species of beetles (Insecta: Coleoptera) in the Baltic states and Belarus Arvīds Barševskis Barševskis A. 2001. New and rare species of beetles (Insecta: Coleoptera) in the Baltic states and Belarus. Baltic J. Coleopterol, 1 (1 - 2): 3 -18. New information about the distribution of 240 species of beetles (Insecta: Coleoptera) in Baltic states (Latvia, Lithuania, Estonia) and Belarus. 4 species are new for Northern Europe, 13 - for the Baltic states, 48 - for Latvia, 31- for Lithuania, 13 - for Estonia and 26 - for Belarus. Key words: Coleoptera, Baltic states, Belarus, fauna, distribution. Arvīds Barševskis, Baltic Institute of Coleopterology & Department of Biology, University of Daugavpils, Vienības 13 - 229, LV-5401, Daugavpils, Latvia. E-mail: beetles@dpu.lv INTRODUCTION The present article contains new information on 240 beetle (Coleoptera) species collected in a number of expeditions in Baltic states (Latvia, Lithuania and Estonia) in 1997 - 2000, and in Belarus in 1985 - 1993 mainly by the author. Four species are new for Northern Europe, 13 - for the Baltic states, 48 - for Latvia, 31 for Lithuania, 13 - for Estonia and 26 - for Belarus. Concerning systematics, the author proceeded from the works of Lawrence J.F. , Newton A.F. (1995) and Lorenz W. (1998). I am indebted to Ch. Maus (Germany), R. Cibuļskis (Latvia) for help in determining of Aleochara, and some other Staphylinidae species, as well as to E. Palm (Danmark) - for help in identification of some Curculionidae species. The material is deposited in the author's collection and in the collection of Baltic Institute of Coleopterology in Daugavpils (Latvia). EXPLANATIONS TO THE LIST OF SPECIES The number of specimens and the collector's name are given in brackets after the date of collecting. Ab- breviations of states used in the text are as follow: LV - Latvia, LT - Lithuania, EE - Estonia, BY - Belarus. LIST OF SPECIES GYRINIDAE Latreille, 1810 1. Gyrinus opacus Sahlberg, 1819 - LV: Ilgas 06.06.1999. (3, Sita lake, A.Barševskis leg.); LT: Zarasai 14.05.1994. (1, Šmelina lake, A.Barševskis leg.); EE: Nina, 9.- 10.08.1998. (2, Peipsijarv lake, A.Barševskis leg.); BY: Sita lake 06.1985. (1, A.Barševskis leg.). A new species for the fauna of Lithuania, Estonia and Belarus. 2. Gyrinus pullatus Zaitzev, 1908 - LT: Zarasai, 22.07.1997. (-20, Šmelina lake, A. Barševskis leg.); BY: Sita lake 06.1985. - 07.1993. (numerous, A.Barševskis leg.). A new species for the fauna of Lithuania and Belarus. 3