Aim of this study was to focus on impacts which are affecting our synanthropic araneofauna and invading Pholcus phalangioides (Fuesslin, 1775) which is spreading noticeably in recent time. Important sources of data for this study came from observations of interspecific behaviour of Pholcus phalangioides with our native species, specifically: Achaearanea tepidariorum (C. L. Koch, 1841), Steatoda bipunctata (Linnaeus, 1758), Steatoda castanea (Clerck, 1757), Steatoda triangulosa (Walckenaer, 1802), Tegenaria sp. (Latreille, 1804). These observations were conducted continuously during few months due to collecting and breeding necessity. Results, final summary, of this work, illustrates the current and possible future way of our synanthropic araneofauna evolution.