其他摘要：The paper presents result of research focused on the chosen groups of arachnids (Arachnida: Opiliones, Pseudoscorpiones, Acari, Araneae) of water–filled tree holes on 3 sites in the Diviacka Nová Ves village (Western Slovakia). Arachnids were captured by pitfall trapping in 13 holes on 5 tree species (oak, beech, elm, maple, cherry tree) in 2012. In total, 50 individuals of Opiliones (4 species), Pseudoscorpiones (1 genus), Acari (1 suborder), Araneae (22 species) were recorded in the researched area. Spiders Anyphaena accentuata (Walckenaer, 1802), Pardosa alacris (C. L. Koch, 1833) and Tenuiphantes flavipes (Blackwall, 1854) were the most frequently sampled species. Research confirmed that tree holes provide suitable conditions for several arachnids.
